Chandra Orbital Events

Times of Orbital Events for Dec. 31, 2010 to Jan. 1, 2012

Created 22 October 2009

Radiation zone passages occur between the end of one orbit and the beginning of the next. During radiation zone passages, no Chandra observations are possible due to the high particle background and the need to protect ACIS. For observations which must be tightly constrained, observers may wish to check projected estimates of usable orbit intervals (and their unusable complement during the radiation zone).

The begin and end orbit times listed below are approximate but conservative projected estimates for the actual radiation zone exit and entry times, calculated as perigee times ± 10 hours. Actual segments of orbits useful for observations are likely to be somewhat longer, but should not be shorter than the times listed here. Perigee times become less accurate as time increases from the creation date. At one year after the creation date, the perigee times are expected to be about 10 minutes off from the actual perigee time.

The date/times are provided here in Calendar (UTC) format. To convert to other date formats, please see the Date Conversion Tool page.

Earlier orbital event times can be accessed on our archived orbits pages.

Orbit	Begin Orbit	End Orbit
1575	2010 Dec 31 04:12:19.74	2011 Jan 01 23:41:11.36
1576	2011 Jan 02 19:41:11.36	2011 Jan 04 15:11:12.47
1577	2011 Jan 05 11:11:12.47	2011 Jan 07 06:41:19.27
1578	2011 Jan 08 02:41:19.27	2011 Jan 09 22:10:39.05
1579	2011 Jan 10 18:10:39.05	2011 Jan 12 13:38:54.55
1580	2011 Jan 13 09:38:54.55	2011 Jan 15 05:06:26.28
1581	2011 Jan 16 01:06:26.28	2011 Jan 17 20:34:22.91
1582	2011 Jan 18 16:34:22.91	2011 Jan 20 12:03:15.95
1583	2011 Jan 21 08:03:15.95	2011 Jan 23 03:30:50.04
1584	2011 Jan 23 23:30:50.04	2011 Jan 25 18:57:56.21
1585	2011 Jan 26 14:57:56.21	2011 Jan 28 10:26:25.08
1586	2011 Jan 29 06:26:25.08	2011 Jan 31 01:56:15.69
1587	2011 Jan 31 21:56:15.69	2011 Feb 02 17:26:25.82
1588	2011 Feb 03 13:26:25.82	2011 Feb 05 08:55:58.15
1589	2011 Feb 06 04:55:58.15	2011 Feb 08 00:24:25.04
1590	2011 Feb 08 20:24:25.04	2011 Feb 10 15:51:57.75
1591	2011 Feb 11 11:51:57.75	2011 Feb 13 07:19:21.82
1592	2011 Feb 14 03:19:21.82	2011 Feb 15 22:47:47.33
1593	2011 Feb 16 18:47:47.33	2011 Feb 18 14:15:38.54
1594	2011 Feb 19 10:15:38.54	2011 Feb 21 05:42:06.55
1595	2011 Feb 22 01:42:06.55	2011 Feb 23 21:09:40.97
1596	2011 Feb 24 17:09:40.97	2011 Feb 26 12:38:50.93
1597	2011 Feb 27 08:38:50.93	2011 Mar 01 04:08:37.90
1598	2011 Mar 02 00:08:37.90	2011 Mar 03 19:38:01.06
1599	2011 Mar 04 15:38:01.06	2011 Mar 06 11:06:24.55
1600	2011 Mar 07 07:06:24.55	2011 Mar 09 02:33:44.65
1601	2011 Mar 09 22:33:44.65	2011 Mar 11 18:00:42.71
1602	2011 Mar 12 14:00:42.71	2011 Mar 14 09:28:23.53
1603	2011 Mar 15 05:28:23.53	2011 Mar 17 00:56:23.38
1604	2011 Mar 17 20:56:23.38	2011 Mar 19 16:22:38.25
1605	2011 Mar 20 12:22:38.25	2011 Mar 22 07:49:04.69
1606	2011 Mar 23 03:49:04.69	2011 Mar 24 23:17:23.09
1607	2011 Mar 25 19:17:23.09	2011 Mar 27 14:46:41.05
1608	2011 Mar 28 10:46:41.05	2011 Mar 30 06:15:48.16
1609	2011 Mar 31 02:15:48.16	2011 Apr 01 21:44:03.71
1610	2011 Apr 02 17:44:03.71	2011 Apr 04 13:11:13.32
1611	2011 Apr 05 09:11:13.32	2011 Apr 07 04:37:46.13
1612	2011 Apr 08 00:37:46.13	2011 Apr 09 20:04:51.23
1613	2011 Apr 10 16:04:51.23	2011 Apr 12 11:32:40.75
1614	2011 Apr 13 07:32:40.75	2011 Apr 15 02:59:15.96
1615	2011 Apr 15 22:59:15.96	2011 Apr 17 18:25:01.30
1616	2011 Apr 18 14:25:01.30	2011 Apr 20 09:52:27.14
1617	2011 Apr 21 05:52:27.14	2011 Apr 23 01:21:26.05
1618	2011 Apr 23 21:21:26.05	2011 Apr 25 16:50:37.40
1619	2011 Apr 26 12:50:37.40	2011 Apr 28 08:19:07.58
1620	2011 Apr 29 04:19:07.58	2011 Apr 30 23:46:35.86
1621	2011 May 01 19:46:35.86	2011 May 03 15:13:16.36
1622	2011 May 04 11:13:16.36	2011 May 06 06:40:15.23
1623	2011 May 07 02:40:15.23	2011 May 08 22:08:15.73
1624	2011 May 09 18:08:15.73	2011 May 11 13:35:41.97
1625	2011 May 12 09:35:41.97	2011 May 14 05:01:50.22
1626	2011 May 15 01:01:50.22	2011 May 16 20:28:53.47
1627	2011 May 17 16:28:53.47	2011 May 19 11:57:50.71
1628	2011 May 20 07:57:50.71	2011 May 22 03:27:29.90
1629	2011 May 22 23:27:29.90	2011 May 24 18:56:40.51
1630	2011 May 25 14:56:40.51	2011 May 27 10:24:49.71
1631	2011 May 28 06:24:49.71	2011 May 30 01:52:02.35
1632	2011 May 30 21:52:02.35	2011 Jun 01 17:19:10.16
1633	2011 Jun 02 13:19:10.16	2011 Jun 04 08:47:21.47
1634	2011 Jun 05 04:47:21.47	2011 Jun 07 00:15:33.87
1635	2011 Jun 07 20:15:33.87	2011 Jun 09 15:42:24.02
1636	2011 Jun 10 11:42:24.02	2011 Jun 12 07:09:26.70
1637	2011 Jun 13 03:09:26.70	2011 Jun 14 22:38:13.30
1638	2011 Jun 15 18:38:13.30	2011 Jun 17 14:08:14.06
1639	2011 Jun 18 10:08:14.06	2011 Jun 20 05:38:07.57
1640	2011 Jun 21 01:38:07.57	2011 Jun 22 21:07:02.14
1641	2011 Jun 23 17:07:02.14	2011 Jun 25 12:34:54.98
1642	2011 Jun 26 08:34:54.98	2011 Jun 28 04:02:21.87
1643	2011 Jun 29 00:02:21.87	2011 Jun 30 19:30:35.03
1644	2011 Jul 01 15:30:35.03	2011 Jul 03 10:59:28.67
1645	2011 Jul 04 06:59:28.67	2011 Jul 06 02:27:02.00
1646	2011 Jul 06 22:27:02.00	2011 Jul 08 17:54:14.06
1647	2011 Jul 09 13:54:14.06	2011 Jul 11 09:22:52.03
1648	2011 Jul 12 05:22:52.03	2011 Jul 14 00:52:58.11
1649	2011 Jul 14 20:52:58.11	2011 Jul 16 16:23:22.18
1650	2011 Jul 17 12:23:22.18	2011 Jul 19 07:52:54.71
1651	2011 Jul 20 03:52:54.71	2011 Jul 21 23:21:16.93
1652	2011 Jul 22 19:21:16.93	2011 Jul 24 14:48:57.62
1653	2011 Jul 25 10:48:57.62	2011 Jul 27 06:16:54.49
1654	2011 Jul 28 02:16:54.49	2011 Jul 29 21:45:47.43
1655	2011 Jul 30 17:45:47.43	2011 Aug 01 13:13:47.46
1656	2011 Aug 02 09:13:47.46	2011 Aug 04 04:40:39.39
1657	2011 Aug 05 00:40:39.39	2011 Aug 06 20:08:37.93
1658	2011 Aug 07 16:08:37.93	2011 Aug 09 11:38:13.48
1659	2011 Aug 10 07:38:13.48	2011 Aug 12 03:08:25.25
1660	2011 Aug 12 23:08:25.25	2011 Aug 14 18:37:59.89
1661	2011 Aug 15 14:37:59.89	2011 Aug 17 10:06:24.02
1662	2011 Aug 18 06:06:24.02	2011 Aug 20 01:33:53.49
1663	2011 Aug 20 21:33:53.49	2011 Aug 22 17:01:16.91
1664	2011 Aug 23 13:01:16.91	2011 Aug 25 08:29:30.82
1665	2011 Aug 26 04:29:30.82	2011 Aug 27 23:57:42.89
1666	2011 Aug 28 19:57:42.89	2011 Aug 30 15:24:12.53
1667	2011 Aug 31 11:24:12.53	2011 Sep 02 06:51:10.92
1668	2011 Sep 03 02:51:10.92	2011 Sep 04 22:19:59.99
1669	2011 Sep 05 18:19:59.99	2011 Sep 07 13:49:45.50
1670	2011 Sep 08 09:49:45.50	2011 Sep 10 05:19:10.36
1671	2011 Sep 11 01:19:10.36	2011 Sep 12 20:47:31.56
1672	2011 Sep 13 16:47:31.56	2011 Sep 15 12:14:48.70
1673	2011 Sep 16 08:14:48.70	2011 Sep 18 03:41:44.78
1674	2011 Sep 18 23:41:44.78	2011 Sep 20 19:09:16.79
1675	2011 Sep 21 15:09:16.79	2011 Sep 23 10:37:21.80
1676	2011 Sep 24 06:37:21.80	2011 Sep 26 02:03:58.34
1677	2011 Sep 26 22:03:58.34	2011 Sep 28 17:29:55.68
1678	2011 Sep 29 13:29:55.68	2011 Oct 01 08:57:42.90
1679	2011 Oct 02 04:57:42.90	2011 Oct 04 00:26:57.05
1680	2011 Oct 04 20:26:57.05	2011 Oct 06 15:56:06.14
1681	2011 Oct 07 11:56:06.14	2011 Oct 09 07:24:20.79
1682	2011 Oct 10 03:24:20.79	2011 Oct 11 22:51:30.50
1683	2011 Oct 12 18:51:30.50	2011 Oct 14 14:18:03.49
1684	2011 Oct 15 10:18:03.49	2011 Oct 17 05:45:05.49
1685	2011 Oct 18 01:45:05.49	2011 Oct 19 21:12:57.48
1686	2011 Oct 20 17:12:57.48	2011 Oct 22 12:40:01.88
1687	2011 Oct 23 08:40:01.88	2011 Oct 25 04:05:47.93
1688	2011 Oct 26 00:05:47.93	2011 Oct 27 19:32:44.68
1689	2011 Oct 28 15:32:44.68	2011 Oct 30 11:01:41.39
1690	2011 Oct 31 07:01:41.39	2011 Nov 02 02:31:06.56
1691	2011 Nov 02 22:31:06.56	2011 Nov 04 17:59:47.70
1692	2011 Nov 05 13:59:47.70	2011 Nov 07 09:27:26.07
1693	2011 Nov 08 05:27:26.07	2011 Nov 10 00:54:18.91
1694	2011 Nov 10 20:54:18.91	2011 Nov 12 16:21:25.34
1695	2011 Nov 13 12:21:25.34	2011 Nov 15 07:49:33.14
1696	2011 Nov 16 03:49:33.14	2011 Nov 17 23:17:29.05
1697	2011 Nov 18 19:17:29.05	2011 Nov 20 14:44:01.00
1698	2011 Nov 21 10:44:01.00	2011 Nov 23 06:10:48.51
1699	2011 Nov 24 02:10:48.51	2011 Nov 25 21:39:37.21
1700	2011 Nov 26 17:39:37.21	2011 Nov 28 13:09:34.51
1701	2011 Nov 29 09:09:34.51	2011 Dec 01 04:39:04.42
1702	2011 Dec 02 00:39:04.42	2011 Dec 03 20:07:28.79
1703	2011 Dec 04 16:07:28.79	2011 Dec 06 11:34:56.02
1704	2011 Dec 07 07:34:56.02	2011 Dec 09 03:02:18.81
1705	2011 Dec 09 23:02:18.81	2011 Dec 11 18:30:39.65
1706	2011 Dec 12 14:30:39.65	2011 Dec 14 09:59:18.46
1707	2011 Dec 15 05:59:18.46	2011 Dec 17 01:26:42.81
1708	2011 Dec 17 21:26:42.81	2011 Dec 19 16:53:46.17
1709	2011 Dec 20 12:53:46.17	2011 Dec 22 08:22:21.48
1710	2011 Dec 23 04:22:21.48	2011 Dec 24 23:52:33.70
1711	2011 Dec 25 19:52:33.70	2011 Dec 27 15:22:52.37
1712	2011 Dec 28 11:22:52.37	2011 Dec 30 06:52:07.21
1713	2011 Dec 31 02:52:07.21	-

Orbit

Begin Orbit

End Orbit

1575

2010 Dec 31 04:12:19.74

2011 Jan 01 23:41:11.36

1576

2011 Jan 02 19:41:11.36

2011 Jan 04 15:11:12.47

1577

2011 Jan 05 11:11:12.47

2011 Jan 07 06:41:19.27

1578

2011 Jan 08 02:41:19.27

2011 Jan 09 22:10:39.05

1579

2011 Jan 10 18:10:39.05

2011 Jan 12 13:38:54.55

1580

2011 Jan 13 09:38:54.55

2011 Jan 15 05:06:26.28

1581

2011 Jan 16 01:06:26.28

2011 Jan 17 20:34:22.91

1582

2011 Jan 18 16:34:22.91

2011 Jan 20 12:03:15.95

1583

2011 Jan 21 08:03:15.95

2011 Jan 23 03:30:50.04

1584

2011 Jan 23 23:30:50.04

2011 Jan 25 18:57:56.21

1585

2011 Jan 26 14:57:56.21

2011 Jan 28 10:26:25.08

1586

2011 Jan 29 06:26:25.08

2011 Jan 31 01:56:15.69

1587

2011 Jan 31 21:56:15.69

2011 Feb 02 17:26:25.82

1588

2011 Feb 03 13:26:25.82

2011 Feb 05 08:55:58.15

1589

2011 Feb 06 04:55:58.15

2011 Feb 08 00:24:25.04

1590

2011 Feb 08 20:24:25.04

2011 Feb 10 15:51:57.75

1591

2011 Feb 11 11:51:57.75

2011 Feb 13 07:19:21.82

1592

2011 Feb 14 03:19:21.82

2011 Feb 15 22:47:47.33

1593

2011 Feb 16 18:47:47.33

2011 Feb 18 14:15:38.54

1594

2011 Feb 19 10:15:38.54

2011 Feb 21 05:42:06.55

1595

2011 Feb 22 01:42:06.55

2011 Feb 23 21:09:40.97

1596

2011 Feb 24 17:09:40.97

2011 Feb 26 12:38:50.93

1597

2011 Feb 27 08:38:50.93

2011 Mar 01 04:08:37.90

1598

2011 Mar 02 00:08:37.90

2011 Mar 03 19:38:01.06

1599

2011 Mar 04 15:38:01.06

2011 Mar 06 11:06:24.55

1600

2011 Mar 07 07:06:24.55

2011 Mar 09 02:33:44.65

1601

2011 Mar 09 22:33:44.65

2011 Mar 11 18:00:42.71

1602

2011 Mar 12 14:00:42.71

2011 Mar 14 09:28:23.53

1603

2011 Mar 15 05:28:23.53

2011 Mar 17 00:56:23.38

1604

2011 Mar 17 20:56:23.38

2011 Mar 19 16:22:38.25

1605

2011 Mar 20 12:22:38.25

2011 Mar 22 07:49:04.69

1606

2011 Mar 23 03:49:04.69

2011 Mar 24 23:17:23.09

1607

2011 Mar 25 19:17:23.09

2011 Mar 27 14:46:41.05

1608

2011 Mar 28 10:46:41.05

2011 Mar 30 06:15:48.16

1609

2011 Mar 31 02:15:48.16

2011 Apr 01 21:44:03.71

1610

2011 Apr 02 17:44:03.71

2011 Apr 04 13:11:13.32

1611

2011 Apr 05 09:11:13.32

2011 Apr 07 04:37:46.13

1612

2011 Apr 08 00:37:46.13

2011 Apr 09 20:04:51.23

1613

2011 Apr 10 16:04:51.23

2011 Apr 12 11:32:40.75

1614

2011 Apr 13 07:32:40.75

2011 Apr 15 02:59:15.96

1615

2011 Apr 15 22:59:15.96

2011 Apr 17 18:25:01.30

1616

2011 Apr 18 14:25:01.30

2011 Apr 20 09:52:27.14

1617

2011 Apr 21 05:52:27.14

2011 Apr 23 01:21:26.05

1618

2011 Apr 23 21:21:26.05

2011 Apr 25 16:50:37.40

1619

2011 Apr 26 12:50:37.40

2011 Apr 28 08:19:07.58

1620

2011 Apr 29 04:19:07.58

2011 Apr 30 23:46:35.86

1621

2011 May 01 19:46:35.86

2011 May 03 15:13:16.36

1622

2011 May 04 11:13:16.36

2011 May 06 06:40:15.23

1623

2011 May 07 02:40:15.23

2011 May 08 22:08:15.73

1624

2011 May 09 18:08:15.73

2011 May 11 13:35:41.97

1625

2011 May 12 09:35:41.97

2011 May 14 05:01:50.22

1626

2011 May 15 01:01:50.22

2011 May 16 20:28:53.47

1627

2011 May 17 16:28:53.47

2011 May 19 11:57:50.71

1628

2011 May 20 07:57:50.71

2011 May 22 03:27:29.90

1629

2011 May 22 23:27:29.90

2011 May 24 18:56:40.51

1630

2011 May 25 14:56:40.51

2011 May 27 10:24:49.71

1631

2011 May 28 06:24:49.71

2011 May 30 01:52:02.35

1632

2011 May 30 21:52:02.35

2011 Jun 01 17:19:10.16

1633

2011 Jun 02 13:19:10.16

2011 Jun 04 08:47:21.47

1634

2011 Jun 05 04:47:21.47

2011 Jun 07 00:15:33.87

1635

2011 Jun 07 20:15:33.87

2011 Jun 09 15:42:24.02

1636

2011 Jun 10 11:42:24.02

2011 Jun 12 07:09:26.70

1637

2011 Jun 13 03:09:26.70

2011 Jun 14 22:38:13.30

1638

2011 Jun 15 18:38:13.30

2011 Jun 17 14:08:14.06

1639

2011 Jun 18 10:08:14.06

2011 Jun 20 05:38:07.57

1640

2011 Jun 21 01:38:07.57

2011 Jun 22 21:07:02.14

1641

2011 Jun 23 17:07:02.14

2011 Jun 25 12:34:54.98

1642

2011 Jun 26 08:34:54.98

2011 Jun 28 04:02:21.87

1643

2011 Jun 29 00:02:21.87

2011 Jun 30 19:30:35.03

1644

2011 Jul 01 15:30:35.03

2011 Jul 03 10:59:28.67

1645

2011 Jul 04 06:59:28.67

2011 Jul 06 02:27:02.00

1646

2011 Jul 06 22:27:02.00

2011 Jul 08 17:54:14.06

1647

2011 Jul 09 13:54:14.06

2011 Jul 11 09:22:52.03

1648

2011 Jul 12 05:22:52.03

2011 Jul 14 00:52:58.11

1649

2011 Jul 14 20:52:58.11

2011 Jul 16 16:23:22.18

1650

2011 Jul 17 12:23:22.18

2011 Jul 19 07:52:54.71

1651

2011 Jul 20 03:52:54.71

2011 Jul 21 23:21:16.93

1652

2011 Jul 22 19:21:16.93

2011 Jul 24 14:48:57.62

1653

2011 Jul 25 10:48:57.62

2011 Jul 27 06:16:54.49

1654

2011 Jul 28 02:16:54.49

2011 Jul 29 21:45:47.43

1655

2011 Jul 30 17:45:47.43

2011 Aug 01 13:13:47.46

1656

2011 Aug 02 09:13:47.46

2011 Aug 04 04:40:39.39

1657

2011 Aug 05 00:40:39.39

2011 Aug 06 20:08:37.93

1658

2011 Aug 07 16:08:37.93

2011 Aug 09 11:38:13.48

1659

2011 Aug 10 07:38:13.48

2011 Aug 12 03:08:25.25

1660

2011 Aug 12 23:08:25.25

2011 Aug 14 18:37:59.89

1661

2011 Aug 15 14:37:59.89

2011 Aug 17 10:06:24.02

1662

2011 Aug 18 06:06:24.02

2011 Aug 20 01:33:53.49

1663

2011 Aug 20 21:33:53.49

2011 Aug 22 17:01:16.91

1664

2011 Aug 23 13:01:16.91

2011 Aug 25 08:29:30.82

1665

2011 Aug 26 04:29:30.82

2011 Aug 27 23:57:42.89

1666

2011 Aug 28 19:57:42.89

2011 Aug 30 15:24:12.53

1667

2011 Aug 31 11:24:12.53

2011 Sep 02 06:51:10.92

1668

2011 Sep 03 02:51:10.92

2011 Sep 04 22:19:59.99

1669

2011 Sep 05 18:19:59.99

2011 Sep 07 13:49:45.50

1670

2011 Sep 08 09:49:45.50

2011 Sep 10 05:19:10.36

1671

2011 Sep 11 01:19:10.36

2011 Sep 12 20:47:31.56

1672

2011 Sep 13 16:47:31.56

2011 Sep 15 12:14:48.70

1673

2011 Sep 16 08:14:48.70

2011 Sep 18 03:41:44.78

1674

2011 Sep 18 23:41:44.78

2011 Sep 20 19:09:16.79

1675

2011 Sep 21 15:09:16.79

2011 Sep 23 10:37:21.80

1676

2011 Sep 24 06:37:21.80

2011 Sep 26 02:03:58.34

1677

2011 Sep 26 22:03:58.34

2011 Sep 28 17:29:55.68

1678

2011 Sep 29 13:29:55.68

2011 Oct 01 08:57:42.90

1679

2011 Oct 02 04:57:42.90

2011 Oct 04 00:26:57.05

1680

2011 Oct 04 20:26:57.05

2011 Oct 06 15:56:06.14

1681

2011 Oct 07 11:56:06.14

2011 Oct 09 07:24:20.79

1682

2011 Oct 10 03:24:20.79

2011 Oct 11 22:51:30.50

1683

2011 Oct 12 18:51:30.50

2011 Oct 14 14:18:03.49

1684

2011 Oct 15 10:18:03.49

2011 Oct 17 05:45:05.49

1685

2011 Oct 18 01:45:05.49

2011 Oct 19 21:12:57.48

1686

2011 Oct 20 17:12:57.48

2011 Oct 22 12:40:01.88

1687

2011 Oct 23 08:40:01.88

2011 Oct 25 04:05:47.93

1688

2011 Oct 26 00:05:47.93

2011 Oct 27 19:32:44.68

1689

2011 Oct 28 15:32:44.68

2011 Oct 30 11:01:41.39

1690

2011 Oct 31 07:01:41.39

2011 Nov 02 02:31:06.56

1691

2011 Nov 02 22:31:06.56

2011 Nov 04 17:59:47.70

1692

2011 Nov 05 13:59:47.70

2011 Nov 07 09:27:26.07

1693

2011 Nov 08 05:27:26.07

2011 Nov 10 00:54:18.91

1694

2011 Nov 10 20:54:18.91

2011 Nov 12 16:21:25.34

1695

2011 Nov 13 12:21:25.34

2011 Nov 15 07:49:33.14

1696

2011 Nov 16 03:49:33.14

2011 Nov 17 23:17:29.05

1697

2011 Nov 18 19:17:29.05

2011 Nov 20 14:44:01.00

1698

2011 Nov 21 10:44:01.00

2011 Nov 23 06:10:48.51

1699

2011 Nov 24 02:10:48.51

2011 Nov 25 21:39:37.21

1700

2011 Nov 26 17:39:37.21

2011 Nov 28 13:09:34.51

1701

2011 Nov 29 09:09:34.51

2011 Dec 01 04:39:04.42

1702

2011 Dec 02 00:39:04.42

2011 Dec 03 20:07:28.79

1703

2011 Dec 04 16:07:28.79

2011 Dec 06 11:34:56.02

1704

2011 Dec 07 07:34:56.02

2011 Dec 09 03:02:18.81

1705

2011 Dec 09 23:02:18.81

2011 Dec 11 18:30:39.65

1706

2011 Dec 12 14:30:39.65

2011 Dec 14 09:59:18.46

1707

2011 Dec 15 05:59:18.46

2011 Dec 17 01:26:42.81

1708

2011 Dec 17 21:26:42.81

2011 Dec 19 16:53:46.17

1709

2011 Dec 20 12:53:46.17

2011 Dec 22 08:22:21.48

1710

2011 Dec 23 04:22:21.48

2011 Dec 24 23:52:33.70

1711

2011 Dec 25 19:52:33.70

2011 Dec 27 15:22:52.37

1712

2011 Dec 28 11:22:52.37

2011 Dec 30 06:52:07.21

1713

2011 Dec 31 02:52:07.21

Last modified: 12/14/16

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxchelp@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2025. All rights reserved.