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An 'S' in the prop_time column means Standard proprietary time, i.e. a year. An 'N' means the data is public.
Please note that obs_start_time is in UT, not local time.
This list is updated daily.
| cycle | seq_nbr | obsid | instrument | grating | approved_exp | actual_exp | target | status | Start Time [UT] | prop_time | pi |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 501091 | 10164 | ACIS-S | NONE | 40.000000 | 36.633000 | SGR 0501+4516 | observed | Aug 25 2008 4:31AM | S | Kouveliotou |
| 09 | 400874 | 9023 | ACIS-S | NONE | 1.000000 | 1.030400 | XTE J1701-407 | observed | Aug 7 2008 2:03AM | S | Chakrabarty |
| 09 | 400893 | 9042 | ACIS-S | HETG | 33.500000 | 31.149100 | A1744-361 | observed | Jul 7 2008 4:30PM | S | Strohmayer |
| 09 | 400893 | 9885 | ACIS-S | HETG | 21.900000 | 21.486300 | A1744-361 | observed | Jul 6 2008 2:44AM | S | Strohmayer |
| 09 | 400893 | 9884 | ACIS-S | HETG | 24.600000 | 24.758800 | A1744-361 | observed | Jul 5 2008 7:57AM | S | Strohmayer |
| 09 | 500968 | 9105 | ACIS-S | NONE | 10.000000 | 9.427200 | 2008bo | observed | Jun 23 2008 8:09PM | S | Pooley |
| 09 | 200505 | 8924 | ACIS-I | NONE | 20.000000 | 20.109700 | EX Lupi | observed | Jun 16 2008 10:21PM | S | Weintraub |
| 09 | 500988 | 9126 | ACIS-S | NONE | 40.000000 | 40.187750 | SGR 1627-41 | observed | Jun 3 2008 10:35AM | S | Woods |
| 08 | 400626 | 7516 | ACIS-S | NONE | 30.000000 | 30.179198 | XTE J1701-462 | observed | Jun 3 2008 2:00AM | S | Homan |
| 09 | 400851 | 9000 | ACIS-S | LETG | 30.000000 | 29.047000 | 4U 1850-087 | observed | May 16 2008 1:30AM | S | ALTAMIRANO |
| 09 | 500996 | 9135 | ACIS-S | NONE | 36.000000 | 36.224000 | GRB080319B | observed | May 15 2008 6:29AM | 6 | Rol |
| 09 | 500995 | 9134 | ACIS-S | NONE | 9.000000 | 9.046400 | GRB080319B | observed | Apr 25 2008 6:44PM | 6 | Rol |
| 09 | 400872 | 9021 | HRC-S | NONE | 1.000000 | 1.190281 | SAX J1750.8-2900 | observed | Apr 24 2008 12:24AM | S | Chakrabarty |
| 09 | 400873 | 9022 | HRC-S | NONE | 1.000000 | 1.151331 | XTE J1810-189 | observed | Apr 23 2008 12:33AM | S | Chakrabarty |
| 09 | 200504 | 8923 | ACIS-I | NONE | 20.000000 | 20.057000 | EX Lupi | observed | Mar 25 2008 10:44PM | S | Weintraub |
| 09 | 400841 | 9837 | ACIS-S | NONE | 21.000000 | 21.168000 | H 1743-322 | observed | Mar 24 2008 5:39AM | S | Jonker |
| 09 | 400841 | 9839 | ACIS-S | NONE | 32.000000 | 29.455500 | H 1743-322 | observed | Mar 23 2008 7:28AM | S | Jonker |
| 09 | 400841 | 8990 | ACIS-S | NONE | 22.500000 | 21.810000 | H 1743-322 | observed | Mar 22 2008 8:08AM | S | Jonker |
| 09 | 400841 | 9838 | ACIS-S | NONE | 24.500000 | 24.448500 | H 1743-322 | observed | Mar 21 2008 10:35AM | S | Jonker |
| 09 | 400840 | 9833 | ACIS-S | NONE | 12.500000 | 12.136799 | H 1743-322 | observed | Mar 17 2008 2:25AM | S | Jonker |
| 09 | 400840 | 8989 | ACIS-S | NONE | 22.500000 | 22.655599 | H 1743-322 | observed | Mar 16 2008 5:48AM | S | Jonker |
| 09 | 400839 | 8988 | ACIS-S | NONE | 15.000000 | 15.142399 | H 1743-322 | observed | Mar 8 2008 4:52PM | S | Jonker |
| 09 | 400838 | 8987 | ACIS-S | NONE | 7.000000 | 7.145200 | H 1743-322 | observed | Mar 2 2008 3:26AM | S | Jonker |
| 09 | 400837 | 8986 | ACIS-S | HETG | 7.000000 | 7.721600 | H 1743-322 | observed | Feb 25 2008 1:17AM | S | Jonker |
| 09 | 400836 | 8985 | ACIS-S | HETG | 7.000000 | 6.451200 | H 1743-322 | observed | Feb 19 2008 3:40AM | S | Jonker |
| 09 | 400920 | 9069 | ACIS-S | HETG | 86.000000 | 85.432750 | 4U 1812-12 | observed | Feb 18 2008 3:30AM | S | in 't Zand |
| 09 | 900811 | 9474 | ACIS-S | NONE | 15.000000 | 15.028800 | GRB 080207 | archived | Feb 15 2008 11:28PM | N | Levan |
| 08 | 400625 | 7515 | ACIS-S | NONE | 20.000000 | 20.169600 | XTE J1701-462 | observed | Jan 31 2008 3:58AM | S | Homan |
| 08 | 400579 | 7469 | ACIS-I | NONE | 1.000000 | 1.150100 | IGR J16293-4606 | observed | Jan 24 2008 5:18AM | S | Mendez |
| 08 | 701532 | 7868 | ACIS-S | NONE | 30.000000 | 30.134400 | Tidal Disruption Eve | observed | Jan 23 2008 8:08PM | S | Gezari |
| 09 | 500967 | 9104 | ACIS-S | NONE | 18.000000 | 18.128000 | SN 2007uy | archived | Jan 19 2008 9:02PM | S | Pooley |
| 09 | 500966 | 9103 | ACIS-S | NONE | 10.000000 | 10.182400 | SN 2007pk | observed | Dec 4 2007 10:18AM | S | Pooley |
| 08 | 500702 | 7570 | ACIS-S | NONE | 33.000000 | 33.043200 | GRB 071020 | observed | Nov 25 2007 7:39AM | S | Garmire |
| 09 | 500824 | 8775 | ACIS-S | NONE | 10.000000 | 9.658000 | 1E 1048.1-5937 | observed | Nov 5 2007 12:32PM | S | Kaspi |
| 08 | 500746 | 7616 | ACIS-S | NONE | 40.000000 | 40.076500 | SGR 071017 | observed | Oct 22 2007 12:47AM | S | Woods |
| 08 | 500747 | 7617 | ACIS-S | NONE | 5.000000 | 5.148800 | SGR 071017 | observed | Oct 21 2007 11:11PM | S | Woods |
| 08 | 900661 | 8120 | HRC-S | LETG | 100.000000 | 96.488636 | H 2356-309 | observed | Oct 11 2007 9:23AM | S | Zappacosta |
| 08 | 701531 | 9719 | ACIS-S | NONE | 8.000000 | 8.153600 | Tidal Disruption Eve | observed | Oct 3 2007 9:24AM | S | Gezari |
| 08 | 701531 | 7867 | ACIS-S | NONE | 22.000000 | 22.140800 | Tidal Disruption Eve | observed | Oct 1 2007 12:32AM | S | Gezari |
| 08 | 500742 | 7612 | ACIS-S | NONE | 40.000000 | 37.972245 | SGR 1806-20 | observed | Sep 25 2007 11:59AM | S | Woods |
| 08 | 300195 | 7462 | HRC-S | LETG | 35.000000 | 35.150070 | V5116 Sgr | archived | Aug 24 2007 7:32PM | S | Orio |
| 08 | 400624 | 7514 | ACIS-S | NONE | 10.000000 | 9.681199 | XTE J1701-462 | archived | Aug 20 2007 4:55PM | S | Homan |
| 08 | 400577 | 7467 | HRC-I | NONE | 1.000000 | 1.189000 | AX J1754.2-2754 | archived | Aug 16 2007 1:59AM | S | Mendez |
| 08 | 400578 | 7468 | HRC-I | NONE | 1.000000 | 1.180031 | IGR J17522-2657 | archived | Aug 16 2007 1:34AM | S | Mendez |
| 08 | 400595 | 7485 | ACIS-S | HETG | 50.000000 | 48.997200 | GRS 1915+105 | archived | Aug 14 2007 5:48AM | S | Ueda |
| 08 | 400623 | 7513 | ACIS-S | NONE | 5.000000 | 5.171600 | XTE J1701-462 | archived | Aug 12 2007 9:00PM | S | Homan |
| 08 | 300191 | 7457 | ACIS-S | NONE | 100.000000 | 95.142597 | RS Ophiuchi | archived | Aug 4 2007 6:20AM | S | Sokoloski |
| 08 | 400608 | 7498 | ACIS-S | NONE | 1.000000 | 1.077200 | XMMU J174716.1-28104 | archived | Jul 6 2007 5:02AM | S | Chakrabarty |
| 08 | 500701 | 7569 | ACIS-S | NONE | 66.000000 | 61.174400 | GRB 060729 | archived | Jun 30 2007 6:36AM | S | Garmire |
| 08 | 600627 | 8190 | ACIS-S | NONE | 60.000000 | 58.181596 | M82 ULX | archived | Jun 2 2007 2:54AM | S | Kaaret |
| 08 | 400607 | 7497 | HRC-I | NONE | 1.000000 | 1.126731 | IGR J17191-2821 | archived | May 27 2007 11:51PM | S | Chakrabarty |
| 07 | 400511 | 6606 | ACIS-I | NONE | 5.000000 | 5.110400 | GRS 1741.9-2853 | archived | May 16 2007 11:38PM | S | Wijnands |
| 08 | 500700 | 7568 | ACIS-S | NONE | 42.000000 | 40.784000 | GRB 060729 | archived | May 16 2007 9:24AM | S | Garmire |
| 07 | 400510 | 6605 | ACIS-I | NONE | 5.000000 | 5.177600 | GRS 1741.9-2853 | archived | Apr 30 2007 10:34PM | S | Wijnands |
| 08 | 500772 | 7643 | ACIS-S | NONE | 34.000000 | 34.041600 | SN2007bg | archived | Apr 30 2007 10:57AM | 3 | Kulkarni |
| 08 | 500778 | 7649 | ACIS-S | NONE | 20.000000 | 19.157000 | 1E 1048.1-5937 | archived | Apr 28 2007 10:46AM | S | Kaspi |
| 07 | 400509 | 6604 | ACIS-I | NONE | 5.000000 | 5.161600 | GRS 1741.9-2853 | archived | Apr 18 2007 5:24PM | S | Wijnands |
| 08 | 500777 | 7648 | ACIS-S | NONE | 20.000000 | 18.459500 | 1E 1048.1-5937 | archived | Apr 16 2007 5:40AM | S | Kaspi |
| 08 | 500776 | 7647 | ACIS-S | NONE | 20.000000 | 20.158000 | 1E 1048.1-5937 | archived | Apr 6 2007 5:37PM | S | Kaspi |
| 07 | 400508 | 6603 | ACIS-I | NONE | 5.000000 | 4.950400 | GRS 1741.9-2853 | archived | Apr 6 2007 3:40PM | S | Wijnands |
| 08 | 500699 | 8541 | ACIS-S | NONE | 5.000000 | 4.761600 | GRB 060729 | archived | Mar 17 2007 1:17PM | S | Garmire |
| 08 | 500699 | 7567 | ACIS-S | NONE | 28.000000 | 28.044800 | GRB 060729 | archived | Mar 16 2007 11:57AM | S | Garmire |
| 07 | 400507 | 6602 | ACIS-I | NONE | 5.000000 | 5.145600 | GRS 1741.9-2853 | archived | Mar 12 2007 4:49PM | S | Wijnands |
| 08 | 500788 | 7659 | ACIS-S | NONE | 20.000000 | 20.179250 | 4U 0142+61 | archived | Feb 10 2007 2:08AM | S | Kaspi |
| 08 | 500696 | 7564 | ACIS-S | NONE | 33.000000 | 33.062400 | GRB 061121 | archived | Jan 22 2007 2:38PM | S | Garmire |
| 07 | 300167 | 6563 | ACIS-S | NONE | 100.000000 | 97.446597 | IRAS 20032+3212 | archived | Jan 15 2007 10:32AM | S | Sokoloski |
| 07 | 500676 | 6729 | ACIS-S | NONE | 60.000000 | 55.176900 | SN2006jc | archived | Jan 6 2007 6:23PM | S | Kulkarni |
| 08 | 400576 | 7466 | HRC-I | NONE | 1.000000 | 1.141081 | 1RXS J003357.9+61264 | archived | Dec 13 2006 12:45AM | S | Mendez |
| 07 | 701282 | 6864 | ACIS-S | NONE | 30.000000 | 30.135100 | TDE J022516.9-043258 | archived | Nov 12 2006 5:21AM | S | Gezari |
| 07 | 500669 | 6722 | ACIS-S | LETG | 95.000000 | 94.537804 | GRB061021 | archived | Oct 22 2006 7:44PM | 1 | Sako |
| 07 | 500673 | 6726 | ACIS-S | NONE | 25.000000 | 25.179500 | CXO J164710.2-455216 | archived | Oct 9 2006 6:45AM | S | Kaspi |
| 07 | 500672 | 6725 | ACIS-S | NONE | 20.000000 | 20.177250 | CXO J164710.2-455216 | archived | Oct 1 2006 11:52PM | S | Kaspi |
| 07 | 400518 | 6613 | ACIS-S | HETG | 20.000000 | 20.177300 | IGR J17497-2821 | archived | Oct 1 2006 5:59PM | 2 | Paizis |
| 07 | 500671 | 6724 | ACIS-S | NONE | 15.000000 | 15.181500 | CXO J164710.2-455216 | archived | Sep 27 2006 7:01AM | S | Kaspi |
| 07 | 500661 | 6710 | ACIS-S | NONE | 40.000000 | 40.175000 | SGR 1806-20 | archived | Sep 1 2006 6:51PM | S | Woods |
| 07 | 701292 | 6874 | ACIS-S | LETG | 30.000000 | 30.120999 | PKS 2155-304 | archived | Jul 29 2006 10:09PM | S | Costamante |
| 07 | 500670 | 6723 | ACIS-S | NONE | 20.000000 | 18.685750 | 4U 0142+61 | archived | Jun 29 2006 5:50AM | S | Kaspi |
| 07 | 500607 | 6309 | ACIS-S | NONE | 25.000000 | 25.032459 | GRB060505 | archived | May 24 2006 8:16AM | 3 | Kulkarni |
| 07 | 400523 | 6618 | ACIS-S | HETG | 50.000000 | 50.963208 | XTE J1817-330 | archived | May 22 2006 2:51PM | S | Miller |
| 07 | 701281 | 6863 | ACIS-S | NONE | 30.000000 | 30.132000 | TDE J221404.4-175632 | archived | May 8 2006 11:44AM | S | Gezari |
| 07 | 500660 | 6709 | ACIS-S | NONE | 40.000000 | 40.142250 | SGR 1900+14 | archived | Mar 29 2006 7:35PM | S | Woods |
| 07 | 400529 | 6624 | HRC-S | NONE | 1.000000 | 1.142875 | XTE J1701-462 | archived | Mar 27 2006 3:40AM | S | Chakrabarty |
| 07 | 400528 | 6623 | HRC-S | NONE | 1.000000 | 1.161581 | XTE J1739-285 | archived | Mar 27 2006 3:04AM | S | Chakrabarty |
| 07 | 400522 | 6617 | ACIS-S | HETG | 50.000000 | 46.710750 | XTE J1817-330 | archived | Mar 15 2006 7:27AM | S | Miller |
| 07 | 500606 | 6308 | ACIS-S | NONE | 30.000000 | 29.750700 | GRB 060218 | archived | Mar 7 2006 1:36PM | 3 | Kulkarni |
| 07 | 500605 | 6307 | ACIS-S | NONE | 20.000000 | 20.174759 | GRB 060218 | archived | Feb 26 2006 7:15PM | 3 | Kulkarni |
| 07 | 400521 | 6616 | ACIS-S | HETG | 50.000000 | 49.580000 | XTE J1817-330 | archived | Feb 24 2006 4:43AM | S | Miller |
| 07 | 400520 | 6615 | ACIS-S | HETG | 50.000000 | 50.040000 | XTE J1817-330 | archived | Feb 13 2006 2:21AM | S | Miller |
| 06 | 300161 | 5445 | ACIS-S | NONE | 3.000000 | 3.123600 | V504 Cen | archived | Feb 6 2006 3:07AM | S | Predehl |
| 07 | 400506 | 6601 | ACIS-S | HETG | 50.000000 | 51.016873 | Cygnus X-3 | archived | Jan 26 2006 3:30PM | S | McCollough |
| 07 | 400506 | 7268 | ACIS-S | HETG | 70.000000 | 70.133000 | Cygnus X-3 | archived | Jan 25 2006 2:38PM | S | McCollough |
| 07 | 701285 | 6867 | ACIS-S | LETG | 30.000000 | 30.051600 | 3C 279 | archived | Jan 17 2006 8:59AM | S | Collmar |
| 07 | 500634 | 6683 | ACIS-S | NONE | 50.000000 | 49.110400 | GRB051221 | archived | Jan 16 2006 1:39AM | S | Burrows |
| 07 | 500615 | 6661 | ACIS-I | NONE | 20.000000 | 20.035259 | GRB060108 | archived | Jan 12 2006 7:29AM | S | Berger |
| 07 | 500688 | 7258 | ACIS-S | NONE | 23.000000 | 24.950400 | GRB 051221 | archived | Jan 10 2006 2:30AM | S | Burrows |
| 07 | 500687 | 7257 | ACIS-S | NONE | 17.000000 | 18.163190 | GRB 051221 | archived | Jan 5 2006 6:11AM | S | Burrows |
| 07 | 500686 | 7256 | ACIS-S | NONE | 30.000000 | 30.179190 | GRB 051221 | archived | Dec 25 2005 12:34PM | S | Burrows |
| 07 | 500632 | 6681 | ACIS-S | NONE | 30.000000 | 30.175910 | GRB 051221 | archived | Dec 22 2005 2:15PM | S | Burrows |
| 06 | 500529 | 5536 | ACIS-S | NONE | 20.000000 | 18.963190 | GRB051022 | archived | Oct 25 2005 9:44PM | S | Kouveliotou |
| 06 | 500578 | 5589 | ACIS-S | NONE | 50.000000 | 45.129600 | GRB050724 | archived | Aug 14 2005 9:32PM | S | Burrows |
| 06 | 500604 | 6293 | ACIS-S | NONE | 50.000000 | 49.960160 | GRB050724 | archived | Jul 26 2005 8:28PM | S | Burrows |
| 06 | 500576 | 5587 | ACIS-S | NONE | 30.000000 | 44.159490 | GRB050709 | archived | Jul 12 2005 5:12AM | N | Frail |
| 06 | 400405 | 6290 | ACIS-S | HETG | 21.660000 | 21.732790 | GX 339-4 | archived | Jun 15 2005 8:51PM | S | Nowak |
| 06 | 400438 | 5508 | HRC-I | NONE | 1.000000 | 1.118531 | XTE J1747-274 | archived | Jun 7 2005 12:18AM | S | Chakrabarty |
| 06 | 900346 | 5839 | HRC-S | LETG | 112.000000 | 112.267486 | high-z blazar in out | archived | May 19 2005 4:44PM | S | Nicastro |
| 06 | 500566 | 5577 | ACIS-S | NONE | 20.000000 | 20.029090 | XRF 050509C | archived | May 19 2005 9:52AM | S | Fox |
| 06 | 300160 | 5444 | HRC-S | LETG | 25.000000 | 25.160930 | RXJ0513.9-6951 | archived | May 19 2005 2:29AM | S | Burwitz |
| 06 | 400405 | 5475 | ACIS-S | HETG | 38.340000 | 38.343490 | GX 339-4 | archived | May 14 2005 2:47AM | S | Nowak |
| 06 | 300159 | 5443 | HRC-S | LETG | 25.000000 | 22.651470 | RXJ0513.9-6951 | archived | May 13 2005 8:03PM | S | Burwitz |
| 06 | 500577 | 5588 | ACIS-S | NONE | 50.000000 | 49.958390 | GRB 050509b | archived | May 11 2005 4:17AM | S | Burrows |
| 06 | 300158 | 5442 | HRC-S | LETG | 25.000000 | 25.679580 | RXJ0513.9-6951 | archived | May 3 2005 5:56AM | S | Burwitz |
| 06 | 300157 | 5441 | HRC-S | LETG | 25.000000 | 25.185530 | RXJ0513.9-6951 | archived | Apr 27 2005 10:57PM | S | Burwitz |
| 06 | 300156 | 5440 | HRC-S | LETG | 25.000000 | 24.712750 | RXJ0513.9-6951 | archived | Apr 20 2005 7:24PM | S | Burwitz |
| 06 | 400391 | 5461 | ACIS-S | HETG | 65.600000 | 62.152000 | GROJ1655-40 | archived | Apr 1 2005 12:56PM | S | Miller |
| 06 | 400390 | 5460 | ACIS-S | HETG | 34.400000 | 34.300000 | GRO J1655-40 | archived | Mar 12 2005 8:56PM | S | Miller |
| 06 | 400380 | 5450 | ACIS-S | HETG | 5.000000 | 5.094000 | XTE J1118+480 | archived | Feb 27 2005 1:23PM | S | Jonker |
| 06 | 600475 | 6097 | ACIS-S | NONE | 60.000000 | 58.188000 | M82 ULX | archived | Feb 4 2005 11:47PM | S | Kaaret |
| 05 | 300127 | 4533 | HRC-S | LETG | 25.000000 | 26.126480 | V1187 Sco | archived | Jan 31 2005 4:02PM | S | Starrfield |
| 05 | 500455 | 4630 | ACIS-S | NONE | 50.000000 | 50.575990 | SN 2004dj | archived | Dec 22 2004 3:29PM | S | Lewin |
| 05 | 900342 | 5035 | HRC-S | LETG | 130.000000 | 129.509000 | BL 0502+675 | archived | Dec 14 2004 12:59PM | S | Nicastro |
| 06 | 400437 | 5507 | HRC-S | NONE | 1.000000 | 1.042681 | IGR J00291+5934 | archived | Dec 14 2004 8:12AM | S | Chakrabarty |
| 05 | 400400 | 5470 | ACIS-S | HETG | 20.000000 | 18.070990 | IGR J00291+5934 | archived | Dec 14 2004 2:57AM | 2 | Paizis |
| 05 | 500458 | 4633 | ACIS-S | NONE | 30.000000 | 26.956790 | SN 2004et | archived | Dec 3 2004 1:02PM | S | Lewin |
| 05 | 400367 | 6150 | ACIS-S | HETG | 22.000000 | 22.045000 | Her X-1 | archived | Dec 1 2004 9:13AM | S | Jimenez-Garate |
| 05 | 400367 | 6149 | ACIS-S | HETG | 22.000000 | 22.140000 | Her X-1 | archived | Nov 29 2004 3:31PM | S | Jimenez-Garate |
| 05 | 400367 | 4585 | ACIS-S | HETG | 22.000000 | 20.155000 | Her X-1 | archived | Nov 26 2004 6:27AM | S | Jimenez-Garate |
| 05 | 500457 | 4632 | ACIS-S | NONE | 30.000000 | 28.339000 | SN 2004et | archived | Nov 6 2004 1:04AM | S | Lewin |
| 05 | 400354 | 4571 | ACIS-S | HETG | 50.000000 | 51.167000 | GX 339-4 | archived | Oct 28 2004 9:03AM | S | Miller |
| 05 | 300126 | 4532 | ACIS-S | NONE | 5.000000 | 5.148000 | V1187 Sco | archived | Oct 27 2004 12:00PM | S | Starrfield |
| 05 | 500456 | 4631 | ACIS-S | NONE | 30.000000 | 30.121000 | SN 2004et | archived | Oct 22 2004 5:49AM | S | Lewin |
| 05 | 400343 | 4560 | ACIS-S | HETG | 10.000000 | 10.169000 | IGR J18410-0535 | archived | Oct 19 2004 3:12PM | S | Campana |
| 05 | 400327 | 4447 | ACIS-S | NONE | 30.000000 | 0.000000 | GX 339-4 | canceled | Oct 16 2004 10:46PM | S | Fender |
| 05 | 500463 | 4644 | ACIS-S | NONE | 35.000000 | 35.164000 | SGR 1806-20 | archived | Oct 9 2004 12:24AM | S | Woods |
| 06 | 500514 | 5520 | ACIS-S | LETG | 100.000000 | 91.354000 | GRB041006 | archived | Oct 7 2004 5:28AM | N | Garmire |
| 05 | 400353 | 4570 | ACIS-S | HETG | 50.000000 | 50.185000 | GX 339-4 | archived | Oct 4 2004 5:51AM | S | Miller |
| 05 | 500454 | 4629 | ACIS-S | NONE | 50.000000 | 45.142000 | SN 2004dj | archived | Oct 3 2004 4:29PM | S | Lewin |
| 05 | 500484 | 4665 | ACIS-S | NONE | 20.000000 | 18.984000 | XRF040916 | archived | Sep 27 2004 10:39AM | 1 | Fox |
| 05 | 500483 | 4664 | ACIS-I | NONE | 20.000000 | 18.172000 | XRF040825 | archived | Sep 15 2004 4:32PM | 1 | Fox |
| 05 | 500482 | 4663 | ACIS-I | NONE | 20.000000 | 20.118000 | XRF040825 | archived | Sep 2 2004 4:24PM | 1 | Fox |
| 05 | 300109 | 4515 | HRC-S | LETG | 84.000000 | 83.739000 | QS Tel | archived | Aug 28 2004 3:45PM | S | Mauche |
| 05 | 500453 | 4628 | ACIS-S | NONE | 50.000000 | 47.119000 | SN 2004dj | archived | Aug 23 2004 10:25AM | S | Lewin |
| 05 | 400352 | 4569 | ACIS-S | HETG | 50.000000 | 50.096000 | GX 339-4 | archived | Aug 22 2004 11:11PM | S | Miller |
| 05 | 500462 | 4643 | ACIS-S | NONE | 35.000000 | 35.161000 | SGR 1806-20 | archived | Aug 13 2004 6:12AM | S | Woods |
| 05 | 400330 | 4453 | ACIS-S | NONE | 40.000000 | 40.185000 | V 4641 Sgr | archived | Aug 10 2004 4:41AM | S | Jonker |
| 05 | 500452 | 4627 | ACIS-S | NONE | 50.000000 | 45.123000 | SN 2004dj | archived | Aug 9 2004 7:24AM | S | Lewin |
| 05 | 400351 | 4568 | ACIS-S | HETG | 50.000000 | 50.184000 | 4U 1630-472 | archived | Aug 4 2004 1:46PM | S | Miller |
| 05 | 400329 | 4452 | ACIS-S | NONE | 20.000000 | 20.160000 | V 4641 Sgr | archived | Jul 30 2004 6:28PM | S | Jonker |
| 05 | 500481 | 4662 | ACIS-I | NONE | 20.000000 | 18.990000 | XRF040701 | archived | Jul 18 2004 1:27AM | 1 | Fox |
| 05 | 400328 | 4451 | ACIS-S | NONE | 10.000000 | 10.154000 | V 4641 Sgr | archived | Jul 17 2004 11:10AM | S | Jonker |
| 05 | 500473 | 4654 | ACIS-S | NONE | 30.000000 | 28.081000 | 1E 1048.1-5937 | archived | Jul 15 2004 8:19AM | S | Kaspi |
| 05 | 500472 | 4653 | ACIS-S | NONE | 30.000000 | 28.859000 | 1E 1048.1-5937 | archived | Jul 10 2004 1:10AM | S | Kaspi |
| 05 | 500480 | 4661 | ACIS-I | NONE | 20.000000 | 20.038000 | XRF040701 | archived | Jul 9 2004 7:55AM | 1 | Fox |
| 05 | 500465 | 4646 | ACIS-S | NONE | 20.000000 | 20.185000 | SGR 1806-20 | archived | Jun 22 2004 2:17PM | S | Woods |
| 05 | 500479 | 4660 | ACIS-S | NONE | 40.000000 | 38.805000 | SN2004C | archived | Jun 6 2004 5:30PM | 1 | Kulkarni |
| 05 | 500464 | 4645 | ACIS-S | NONE | 50.000000 | 50.178000 | SGR 1806-20 | archived | May 27 2004 2:24PM | S | Woods |
| 05 | 400357 | 5317 | HRC-S | LETG | 40.000000 | 39.831000 | LMC X-3 | archived | May 8 2004 3:40PM | S | Fang |
| 05 | 400357 | 5316 | HRC-S | LETG | 40.000000 | 41.714000 | LMC X-3 | archived | May 4 2004 9:42AM | S | Fang |
| 05 | 400357 | 4575 | HRC-S | LETG | 20.000000 | 19.831000 | LMC X-3 | archived | Apr 20 2004 2:05AM | S | Fang |
| 05 | 500478 | 4659 | ACIS-S | NONE | 40.000000 | 40.172000 | SN2004C | archived | Apr 7 2004 6:33AM | 1 | Kulkarni |
| 05 | 400371 | 4589 | ACIS-S | HETG | 30.000000 | 30.142000 | GRS 1915+105 | archived | Apr 6 2004 9:36PM | S | Feng |
| 05 | 400370 | 4588 | ACIS-S | HETG | 30.000000 | 27.285000 | GRS 1915+105 | archived | Mar 30 2004 12:07PM | S | Feng |
| 05 | 400334 | 4551 | ACIS-S | HETG | 50.000000 | 45.211000 | GRS 1747-312 | archived | Mar 29 2004 11:09PM | S | Mendez |
| 05 | 400350 | 4567 | ACIS-S | NONE | 40.000000 | 40.550000 | H1743-322 | archived | Mar 27 2004 6:29AM | S | Corbel |
| 05 | 400349 | 4566 | ACIS-S | NONE | 30.000000 | 28.726000 | H1743-322 | archived | Mar 24 2004 6:12PM | S | Corbel |
| 05 | 400369 | 4587 | ACIS-S | HETG | 30.000000 | 30.159000 | GRS 1915+105 | archived | Mar 20 2004 4:45AM | S | Feng |
| 05 | 900343 | 5036 | HRC-S | LETG | 170.000000 | 149.861000 | 1ES 1028+511 | archived | Mar 11 2004 2:23PM | S | Nicastro |
| 05 | 400348 | 4565 | ACIS-S | NONE | 25.000000 | 23.632000 | H1743-322 | archived | Feb 12 2004 8:41PM | S | Corbel |
| 05 | 400326 | 4446 | ACIS-S | NONE | 30.000000 | 29.756000 | GX 339-4 | archived | Feb 4 2004 4:47PM | S | Fender |
| 04 | 500385 | 3906 | ACIS-I | NONE | 20.000000 | 19.660000 | GRB031220 | archived | Jan 17 2004 3:18PM | S | Piro |
| 04 | 500384 | 3905 | ACIS-I | NONE | 40.000000 | 40.175000 | GRB031220 | archived | Dec 25 2003 6:37PM | S | Piro |
| 04 | 300091 | 3503 | HRC-S | LETG | 48.000000 | 47.981000 | RXJ0513.9-6951 | archived | Dec 24 2003 7:17AM | 3 | Predehl |
| 04 | 400309 | 3822 | ACIS-S | HETG | 30.000000 | 30.137000 | HER X-1 | archived | Dec 10 2003 12:16AM | S | Jimenez-Garate |
| 05 | 400364 | 4582 | ACIS-S | NONE | 30.000000 | 30.061000 | GRS 1915+105 | archived | Dec 7 2003 6:19AM | S | Miller |
| 05 | 400325 | 4445 | ACIS-S | NONE | 30.000000 | 28.668000 | GX 339-4 | archived | Sep 29 2003 11:58AM | S | Fender |
| 04 | 300101 | 4435 | HRC-S | LETG | 12.500000 | 12.343000 | V4743 Sgr | archived | Sep 26 2003 12:01AM | S | Starrfield |
| 04 | 400308 | 3821 | ACIS-S | HETG | 30.000000 | 30.098000 | HER X-1 | archived | Aug 24 2003 9:34PM | S | Jimenez-Garate |
| 04 | 300094 | 3769 | ACIS-S | HETG | 100.000000 | 92.968000 | AM HERCULIS | archived | Aug 15 2003 1:45PM | S | Mukai |
| 04 | 500397 | 3918 | ACIS-S | NONE | 90.000000 | 85.247000 | H2777 | archived | Aug 4 2003 10:38PM | N | Garmire |
| 04 | 400293 | 3806 | ACIS-S | HETG | 50.000000 | 50.200000 | H1743-322 | archived | Jul 30 2003 4:17PM | S | Lewin |
| 04 | 500401 | 3922 | ACIS-I | NONE | 25.000000 | 25.128000 | H2777 | archived | Jul 25 2003 10:09AM | N | Garmire |
| 04 | 300101 | 3776 | HRC-S | LETG | 12.500000 | 11.829000 | V4743 Sgr | archived | Jul 18 2003 9:51PM | S | Starrfield |
| 04 | 700828 | 4149 | HRC-S | LETG | 100.000000 | 99.982000 | Mkn 421 | archived | Jul 1 2003 2:36PM | S | Nicastro |
| 04 | 400292 | 3805 | ACIS-S | HETG | 50.000000 | 50.067000 | H1743-322 | archived | Jun 23 2003 4:11PM | S | Lewin |
| 04 | 500350 | 3871 | ACIS-S | NONE | 50.000000 | 41.190000 | SN 2003BG | archived | Jun 22 2003 7:19AM | S | Lewin |
| 04 | 500400 | 3921 | ACIS-S | NONE | 20.000000 | 20.342000 | GRB030528 | archived | Jun 9 2003 8:29AM | N | Garmire |
| 04 | 500399 | 3920 | ACIS-S | NONE | 25.000000 | 26.108000 | GRB030528 | archived | Jun 3 2003 12:37PM | N | Garmire |
| 04 | 400291 | 3804 | ACIS-S | HETG | 50.000000 | 40.147000 | H1743-322 | archived | May 28 2003 4:27AM | S | Lewin |
| 04 | 400290 | 3803 | ACIS-S | HETG | 50.000000 | 46.719000 | H 1743-322 | archived | May 1 2003 10:07PM | S | Lewin |
| 04 | 500349 | 3870 | ACIS-S | NONE | 50.000000 | 51.113000 | SN 2003BG | archived | Mar 24 2003 12:11PM | S | Lewin |
| 04 | 300100 | 3775 | HRC-S | LETG | 25.000000 | 25.070000 | V4743 Sgr | archived | Mar 19 2003 9:46AM | S | Starrfield |
| 04 | 400299 | 3812 | HRC-I | NONE | 15.000000 | 14.782000 | CYG X-3 | archived | Feb 12 2003 5:44PM | S | Heindl |
| 04 | 400272 | 3785 | ACIS-I | NONE | 20.000000 | 19.964000 | GRB021201 | archived | Jan 3 2003 2:59PM | S | Hurley |
| 04 | 300092 | 3767 | ACIS-S | HETG | 67.000000 | 62.387000 | U GEM | archived | Dec 26 2002 9:55AM | S | Mauche |
| 04 | 300098 | 3773 | HRC-S | LETG | 50.000000 | 47.912000 | U GEM | archived | Dec 25 2002 8:01PM | S | Long |
| 04 | 400271 | 3784 | ACIS-I | NONE | 20.000000 | 19.967000 | GRB021201 | archived | Dec 9 2002 11:33PM | S | Hurley |
| 04 | 300099 | 3774 | ACIS-S | NONE | 5.000000 | 5.308000 | V4743 Sgr | archived | Nov 9 2002 6:06AM | S | Starrfield |
| 04 | 500337 | 3858 | ACIS-S | NONE | 50.000000 | 48.217000 | SGR 1900+14 | archived | Nov 6 2002 11:37PM | S | Woods |
| 04 | 700827 | 4148 | ACIS-S | LETG | 100.000000 | 96.844000 | MRK 421 | archived | Oct 26 2002 12:22AM | S | Nicastro |
| 03 | 400190 | 2710 | ACIS-S | HETG | 60.000000 | 57.372000 | GX 1+4 | archived | Aug 5 2002 9:50PM | S | Cui |
| 03 | 500274 | 3673 | ACIS-I | NONE | 10.000000 | 10.195000 | GRB020531 | archived | Jun 10 2002 9:14PM | N | Ricker |
| 03 | 500274 | 2824 | ACIS-I | NONE | 20.000000 | 20.078000 | GRB020531 | archived | Jun 5 2002 4:18AM | N | Ricker |
| 03 | 300073 | 2672 | ACIS-S | NONE | 5.000000 | 4.935000 | IM Nor | archived | May 30 2002 3:35AM | S | Starrfield |
| 03 | 400229 | 2749 | ACIS-S | HETG | 50.000000 | 50.175000 | HER X-1 | archived | May 5 2002 10:34AM | S | HAILEY |
| 03 | 500275 | 2825 | ACIS-S | LETG | 60.000000 | 51.206000 | GRB 020405 | archived | Apr 6 2002 5:20PM | S | PAERELS |
| 03 | 500210 | 2760 | ACIS-S | NONE | 20.000000 | 20.067000 | SN2002BO | archived | Mar 14 2002 6:51AM | S | Hughes |
| 03 | 700422 | 2983 | ACIS-S | LETG | 100.000000 | 90.152000 | SY1 IN OUTBURST | archived | Mar 5 2002 12:56AM | N | Nicastro |
| 03 | 500209 | 2759 | ACIS-S | NONE | 50.000000 | 48.833000 | RCW103 | archived | Mar 3 2002 5:01AM | S | Garmire |
| 03 | 400211 | 2731 | ACIS-S | NONE | 20.000000 | 20.140000 | XTE J1650-500 | archived | Mar 2 2002 2:31AM | S | Tomsick |
| 03 | 400211 | 3401 | ACIS-S | HETG | 10.000000 | 9.665000 | XTE J1650-500 | archived | Feb 4 2002 2:55PM | S | Tomsick |
| 03 | 400211 | 3400 | ACIS-S | HETG | 10.000000 | 10.165000 | XTE J1650-500 | archived | Jan 24 2002 12:11AM | S | Tomsick |
| 03 | 500273 | 2823 | ACIS-I | NONE | 30.000000 | 30.166000 | XRF011130 | archived | Dec 10 2001 1:07AM | N | Ricker |
| 03 | 400180 | 2700 | ACIS-S | HETG | 30.000000 | 28.617000 | XTE J1650-500 | archived | Oct 29 2001 1:31AM | S | Lewin |
| 03 | 400168 | 2688 | ACIS-S | NONE | 20.000000 | 19.816000 | MXB 1659-298 | archived | Oct 15 2001 4:54PM | S | Wijnands |
| 03 | 400179 | 2699 | ACIS-S | HETG | 30.000000 | 30.000000 | XTE J1650-500 | archived | Oct 5 2001 10:10PM | S | Lewin |
| 01 | 100008 | 2481 | HRC-S | LETG | 2.250000 | 2.400000 | LINEAR 2001 A2 | archived | Jul 9 2001 10:47PM | S | VESTRAND |
| 01 | 100008 | 2480 | HRC-S | LETG | 2.250000 | 2.446000 | LINEAR 2001 A2 | archived | Jul 9 2001 10:01PM | S | VESTRAND |
| 01 | 100008 | 2479 | HRC-S | LETG | 2.250000 | 2.400000 | LINEAR 2001 A2 | archived | Jul 9 2001 9:15PM | S | VESTRAND |
| 01 | 100008 | 2478 | HRC-S | LETG | 2.250000 | 2.436000 | LINEAR 2001 A2 | archived | Jul 9 2001 8:29PM | S | VESTRAND |
| 01 | 100008 | 2477 | HRC-S | LETG | 2.250000 | 2.432000 | LINEAR 2001 A2 | archived | Jul 9 2001 7:43PM | S | VESTRAND |
| 01 | 100008 | 2476 | HRC-S | LETG | 2.250000 | 2.436000 | LINEAR 2001 A2 | archived | Jul 9 2001 6:56PM | S | VESTRAND |
| 01 | 100008 | 2475 | HRC-S | LETG | 2.250000 | 2.438000 | LINEAR 2001 A2 | archived | Jul 9 2001 6:10PM | S | VESTRAND |
| 01 | 100008 | 2474 | HRC-S | LETG | 2.250000 | 2.440000 | LINEAR 2001 A2 | archived | Jul 9 2001 5:23PM | S | VESTRAND |
| 01 | 100008 | 2473 | HRC-S | LETG | 2.250000 | 2.432000 | LINEAR 2001 A2 | archived | Jul 9 2001 4:37PM | S | VESTRAND |
| 01 | 100008 | 2472 | HRC-S | LETG | 2.250000 | 2.071000 | LINEAR 2001 A2 | archived | Jul 9 2001 3:51PM | S | VESTRAND |
| 01 | 100009 | 1818 | HRC-I | NONE | 2.250000 | 2.500000 | LINEAR 2001 A2 | archived | Jul 8 2001 10:07PM | S | VESTRAND |
| 01 | 100009 | 1817 | HRC-I | NONE | 2.250000 | 2.335000 | LINEAR 2001 A2 | archived | Jul 8 2001 9:22PM | S | VESTRAND |
| 01 | 100009 | 1816 | HRC-I | NONE | 2.250000 | 2.300000 | LINEAR 2001 A2 | archived | Jul 8 2001 8:38PM | S | VESTRAND |
| 01 | 100009 | 1815 | HRC-I | NONE | 2.250000 | 2.340000 | LINEAR 2001 A2 | archived | Jul 8 2001 7:54PM | S | VESTRAND |
| 01 | 100009 | 1814 | HRC-I | NONE | 2.250000 | 2.043000 | LINEAR 2001 A2 | archived | Jul 8 2001 7:09PM | S | VESTRAND |
| 01 | 100008 | 1826 | HRC-S | LETG | 2.250000 | 2.243000 | LINEAR 2001 A2 | archived | Jul 8 2001 5:14PM | S | VESTRAND |
| 01 | 100008 | 1825 | HRC-S | LETG | 2.250000 | 2.342000 | LINEAR 2001 A2 | archived | Jul 8 2001 4:30PM | S | VESTRAND |
| 01 | 100008 | 1824 | HRC-S | LETG | 2.250000 | 2.400000 | LINEAR 2001 A2 | archived | Jul 8 2001 3:44PM | S | VESTRAND |
| 01 | 100008 | 1823 | HRC-S | LETG | 2.250000 | 2.442000 | LINEAR 2001 A2 | archived | Jul 8 2001 2:58PM | S | VESTRAND |
| 01 | 100008 | 1822 | HRC-S | LETG | 2.250000 | 2.430000 | LINEAR 2001 A2 | archived | Jul 8 2001 2:12PM | S | VESTRAND |
| 01 | 100008 | 1821 | HRC-S | LETG | 2.250000 | 2.346000 | LINEAR 2001 A2 | archived | Jul 8 2001 1:28PM | S | VESTRAND |
| 01 | 100008 | 1820 | HRC-S | LETG | 2.250000 | 2.333000 | LINEAR 2001 A2 | archived | Jul 8 2001 12:43PM | S | VESTRAND |
| 01 | 100008 | 1819 | HRC-S | LETG | 2.250000 | 2.400000 | LINEAR 2001 A2 | archived | Jul 8 2001 11:59AM | S | VESTRAND |
| 01 | 100008 | 590 | HRC-S | LETG | 2.250000 | 1.992000 | LINEAR 2001 A2 | archived | Jul 8 2001 11:15AM | S | VESTRAND |
| 01 | 100009 | 1813 | HRC-I | NONE | 2.250000 | 2.400000 | LINEAR 2001 A2 | archived | Jul 8 2001 9:18AM | S | VESTRAND |
| 01 | 100009 | 1812 | HRC-I | NONE | 2.250000 | 2.400000 | LINEAR 2001 A2 | archived | Jul 8 2001 8:33AM | S | VESTRAND |
| 01 | 100009 | 1811 | HRC-I | NONE | 2.250000 | 2.346000 | LINEAR 2001 A2 | archived | Jul 8 2001 7:49AM | S | VESTRAND |
| 01 | 100009 | 1810 | HRC-I | NONE | 2.250000 | 2.340000 | LINEAR 2001 A2 | archived | Jul 8 2001 7:05AM | S | VESTRAND |
| 01 | 100009 | 591 | HRC-I | NONE | 2.250000 | 2.131000 | LINEAR 2001 A2 | archived | Jul 8 2001 6:20AM | S | VESTRAND |
| 01 | 400078 | 711 | ACIS-S | NONE | 8.000000 | 10.194000 | AQL X-1 | archived | Apr 20 2001 12:16PM | S | BILDSTEN |
| 01 | 400077 | 710 | ACIS-S | NONE | 8.000000 | 8.150000 | AQL X-1 | archived | Mar 23 2001 8:24PM | S | BILDSTEN |
| 02 | 500114 | 1048 | ACIS-S | NONE | 20.000000 | 17.907000 | GRB 010222 | archived | Mar 5 2001 10:58AM | S | Kulkarni |
| 01 | 400076 | 709 | ACIS-S | NONE | 8.000000 | 8.586000 | AQL X-1 | archived | Feb 19 2001 11:44AM | S | BILDSTEN |
| 02 | 700338 | 2148 | ACIS-S | NONE | 50.000000 | 50.525000 | NGC 4051 | archived | Feb 6 2001 6:44AM | S | Uttley |
| 02 | 300045 | 1897 | HRC-S | LETG | 50.000000 | 47.340000 | SS CYG | archived | Jan 16 2001 9:27PM | S | Mauche |
| 02 | 400156 | 1943 | ACIS-S | HETG | 50.000000 | 46.776000 | CEN X-3 | archived | Dec 30 2000 12:28AM | S | Wojdowski |
| 01 | 400075 | 708 | ACIS-S | NONE | 8.000000 | 7.307000 | AQL X-1 | archived | Nov 28 2000 11:14AM | S | BILDSTEN |
| 01 | 400079 | 712 | HRC-S | LETG | 10.000000 | 10.312000 | AQL X-1 | archived | Nov 18 2000 10:09PM | S | BILDSTEN |
| 02 | 500113 | 1047 | ACIS-S | NONE | 33.000000 | 32.649000 | GRB 000926 | archived | Oct 9 2000 4:47AM | S | Kulkarni |
| 01 | 500084 | 598 | ACIS-S | NONE | 10.000000 | 13.260000 | GRB000926 | archived | Sep 29 2000 4:40PM | S | Piro |
| 01 | 300017 | 648 | ACIS-S | HETG | 65.000000 | 60.304000 | SS CYG | archived | Sep 14 2000 9:28PM | S | Mauche |
| 01 | 300017 | 2307 | ACIS-S | HETG | 35.000000 | 36.937000 | SS CYG | archived | Sep 12 2000 5:19PM | S | Mauche |
| 01 | 100018 | 1836 | ACIS-S | NONE | 1.000000 | 1.190000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 7:30PM | S | Lisse |
| 01 | 100018 | 1835 | ACIS-S | NONE | 1.000000 | 1.190000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 7:00PM | S | Lisse |
| 01 | 100018 | 1834 | ACIS-S | NONE | 1.000000 | 1.196000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 6:35PM | S | Lisse |
| 01 | 100018 | 1833 | ACIS-S | NONE | 1.000000 | 1.187000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 6:10PM | S | Lisse |
| 01 | 100018 | 1832 | ACIS-S | NONE | 1.000000 | 1.190000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 5:45PM | S | Lisse |
| 01 | 100018 | 1831 | ACIS-S | NONE | 1.000000 | 1.190000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 5:20PM | S | Lisse |
| 01 | 100018 | 1830 | ACIS-S | NONE | 1.000000 | 1.200000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 4:54PM | S | Lisse |
| 01 | 100018 | 1747 | ACIS-S | NONE | 1.000000 | 1.193000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 4:29PM | S | Lisse |
| 01 | 100004 | 1768 | ACIS-S | NONE | 1.000000 | 1.203000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 4:04PM | S | Lisse |
| 01 | 100004 | 1767 | ACIS-S | NONE | 1.000000 | 1.196000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 3:39PM | S | Lisse |
| 01 | 100004 | 1766 | ACIS-S | NONE | 1.000000 | 1.193000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 3:18PM | S | Lisse |
| 01 | 100004 | 1765 | ACIS-S | NONE | 1.000000 | 1.190000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 2:53PM | S | Lisse |
| 01 | 100004 | 1764 | ACIS-S | NONE | 1.000000 | 1.196000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 2:28PM | S | Lisse |
| 01 | 100004 | 1763 | ACIS-S | NONE | 1.000000 | 1.190000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 2:03PM | S | Lisse |
| 01 | 100004 | 1762 | ACIS-S | NONE | 1.000000 | 1.196000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 1:38PM | S | Lisse |
| 01 | 100004 | 586 | ACIS-S | NONE | 1.000000 | 0.960000 | Comet c/LINEAR 1999 | archived | Aug 1 2000 1:12PM | S | Lisse |
| 01 | 500079 | 952 | ACIS-S | NONE | 20.000000 | 20.025000 | SN1998S | archived | Aug 1 2000 7:04AM | S | Lewin |
| 01 | 100003 | 1761 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 2:40AM | S | Lisse |
| 01 | 100003 | 1760 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 2:15AM | S | Lisse |
| 01 | 100003 | 1759 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 1:50AM | S | Lisse |
| 01 | 100003 | 1758 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 1:25AM | S | Lisse |
| 01 | 100003 | 1757 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 1:00AM | S | Lisse |
| 01 | 100003 | 1756 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 12:34AM | S | Lisse |
| 01 | 100003 | 1755 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 15 2000 12:09AM | S | Lisse |
| 01 | 100003 | 585 | ACIS-S | NONE | 1.000000 | 0.000000 | LINEAR 1999 S4 | canceled | Jul 14 2000 11:44PM | S | Lisse |
| 01 | 100002 | 1754 | ACIS-S | NONE | 1.000000 | 1.376000 | LINEAR 1999 S4 | archived | Jul 14 2000 7:43AM | S | Lisse |
| 01 | 100002 | 1753 | ACIS-S | NONE | 1.000000 | 1.196000 | LINEAR 1999 S4 | archived | Jul 14 2000 7:18AM | S | Lisse |
| 01 | 100002 | 1752 | ACIS-S | NONE | 1.000000 | 1.203000 | LINEAR 1999 S4 | archived | Jul 14 2000 6:53AM | S | Lisse |
| 01 | 100002 | 1751 | ACIS-S | NONE | 1.000000 | 1.190000 | LINEAR 1999 S4 | archived | Jul 14 2000 6:28AM | S | Lisse |
| 01 | 100002 | 1750 | ACIS-S | NONE | 1.000000 | 1.203000 | LINEAR 1999 S4 | archived | Jul 14 2000 6:02AM | S | Lisse |
| 01 | 100002 | 1749 | ACIS-S | NONE | 1.000000 | 1.190000 | LINEAR 1999 S4 | archived | Jul 14 2000 5:37AM | S | Lisse |
| 01 | 100002 | 1748 | ACIS-S | NONE | 1.000000 | 1.190000 | LINEAR 1999 S4 | archived | Jul 14 2000 5:12AM | S | Lisse |
| 01 | 100002 | 584 | ACIS-S | NONE | 1.000000 | 0.960000 | LINEAR 1999 S4 | archived | Jul 14 2000 4:47AM | S | Lisse |
| 01 | 400046 | 679 | ACIS-S | HETG | 6.000000 | 6.006000 | XTE J1550-564 (0.05 | archived | Jun 9 2000 12:07PM | S | Lewin |
| 01 | 400057 | 690 | ACIS-S | HETG | 1.200000 | 2.598000 | XTE J1550-564 (OUTBU | archived | Jun 1 2000 11:28PM | S | Lewin |
| 01 | 400056 | 689 | ACIS-S | HETG | 1.200000 | 3.109000 | XTE J1550-564 (OUTBU | archived | May 30 2000 8:30AM | S | Lewin |
| 01 | 400054 | 687 | ACIS-S | NONE | 1.200000 | 2.444000 | XTE J1550-564 (OUTBU | archived | May 22 2000 10:15AM | S | Lewin |
| 01 | 400049 | 682 | ACIS-S | NONE | 2.000000 | 2.516000 | XTE J1550-564 (OUTBU | archived | May 8 2000 11:00PM | S | Lewin |
| 01 | 400048 | 681 | ACIS-S | HETG | 2.000000 | 2.151000 | XTE J1550-564 (OUTBU | archived | May 6 2000 1:17PM | S | Lewin |
| 01 | 400047 | 680 | ACIS-S | HETG | 2.000000 | 2.147000 | XTE J1550-564 (OUTBU | archived | May 3 2000 9:26PM | S | Lewin |
| 01 | 500064 | 768 | ACIS-S | NONE | 20.000000 | 23.753000 | SN1998S | archived | Mar 7 2000 7:37PM | S | Lewin |
| 01 | 300032 | 958 | HRC-S | LETG | 25.000000 | 24.516000 | V382 Velorum 1999 | archived | Feb 14 2000 6:49AM | S | Starrfield |
| 01 | 500088 | 602 | ACIS-S | NONE | 10.000000 | 9.046000 | GRB000210 | archived | Feb 11 2000 5:10AM | S | Piro |
| 01 | 500062 | 766 | ACIS-S | NONE | 40.000000 | 38.944000 | SN1999em | archived | Feb 7 2000 11:39AM | S | Lewin |
| 01 | 500063 | 767 | ACIS-S | NONE | 20.000000 | 19.158400 | SN1998S | archived | Jan 10 2000 6:42PM | S | Lewin |
| 01 | 300021 | 652 | ACIS-I | NONE | 20.000000 | 18.176000 | V382 Velorum 1999 | archived | Dec 30 1999 7:47PM | S | Starrfield |
| 01 | 500082 | 596 | ACIS-S | HETG | 10.000000 | 9.772800 | GRB 991216 | archived | Dec 18 1999 4:58AM | S | Piro |
| 01 | 500061 | 765 | ACIS-S | NONE | 40.000000 | 35.772800 | SN1999em | archived | Dec 16 1999 5:14PM | S | Lewin |
| 01 | 500060 | 764 | ACIS-S | NONE | 25.000000 | 26.557200 | SN1999em | archived | Nov 13 1999 5:03PM | S | Lewin |
| 01 | 500059 | 763 | ACIS-S | NONE | 25.000000 | 29.655000 | SN1999em | archived | Nov 1 1999 10:37PM | S | Lewin |
| 01 | 400045 | 678 | ACIS-S | HETG | 30.000000 | 29.675000 | RAPID BURSTER | archived | Oct 24 1999 5:01PM | S | Lewin |
| 01 | 500086 | 600 | ACIS-S | HETG | 10.000000 | 0.000000 | GRB #3 | canceled | S | Piro | |
| 01 | 500091 | 46 | ACIS-S | NONE | 25.000000 | 0.000000 | SN1999em | canceled | S | Lewin | |
| 01 | 500078 | 592 | ACIS-I | NONE | 10.000000 | 0.000000 | GRB/TOO #1 | canceled | N | Ricker | |
| 01 | 500080 | 594 | ACIS-I | NONE | 10.000000 | 0.000000 | GRB/TOO #2 | canceled | N | Ricker | |
| 01 | 400074 | 707 | ACIS-S | HETG | 40.000000 | 0.000000 | GRO J1655-40 | canceled | S | LIEDAHL | |
| 01 | 700128 | 823 | ACIS-S | NONE | 15.000000 | 0.000000 | QSO 2237+0305 | canceled | S | Mineshige | |
| 01 | 700129 | 824 | ACIS-S | NONE | 15.000000 | 0.000000 | QSO 2237+0305 | canceled | S |