Chandra Orbital Events

Times of Orbital Events for Jan 1, 2013 to Jan. 1, 2014

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
1852	2013 Jan 01 16:14:54.43	2013 Jan 03 11:42:14.03
1853	2013 Jan 04 07:42:14.03	2013 Jan 06 03:10:11.13
1854	2013 Jan 06 23:10:11.13	2013 Jan 08 18:39:44.23
1855	2013 Jan 09 14:39:44.23	2013 Jan 11 10:10:10.47
1856	2013 Jan 12 06:10:10.47	2013 Jan 14 01:39:42.64
1857	2013 Jan 14 21:39:42.64	2013 Jan 16 17:07:37.88
1858	2013 Jan 17 13:07:37.88	2013 Jan 19 08:34:57.47
1859	2013 Jan 20 04:34:57.47	2013 Jan 22 00:02:54.27
1860	2013 Jan 22 20:02:54.27	2013 Jan 24 15:31:35.09
1861	2013 Jan 25 11:31:35.09	2013 Jan 27 06:59:45.49
1862	2013 Jan 28 02:59:45.49	2013 Jan 29 22:26:51.54
1863	2013 Jan 30 18:26:51.54	2013 Feb 01 13:54:06.60
1864	2013 Feb 02 09:54:06.60	2013 Feb 04 05:22:41.26
1865	2013 Feb 05 01:22:41.26	2013 Feb 06 20:52:28.16
1866	2013 Feb 07 16:52:28.16	2013 Feb 09 12:21:56.30
1867	2013 Feb 10 08:21:56.30	2013 Feb 12 03:49:46.63
1868	2013 Feb 12 23:49:46.63	2013 Feb 14 19:16:32.26
1869	2013 Feb 15 15:16:32.26	2013 Feb 17 10:43:36.32
1870	2013 Feb 18 06:43:36.32	2013 Feb 20 02:11:29.92
1871	2013 Feb 20 22:11:29.92	2013 Feb 22 17:39:24.70
1872	2013 Feb 23 13:39:24.70	2013 Feb 25 09:06:13.28
1873	2013 Feb 26 05:06:13.28	2013 Feb 28 00:32:41.46
1874	2013 Feb 28 20:32:41.46	2013 Mar 02 16:00:21.56
1875	2013 Mar 03 12:00:21.56	2013 Mar 05 07:29:25.42
1876	2013 Mar 06 03:29:25.42	2013 Mar 07 22:58:40.88
1877	2013 Mar 08 18:58:40.88	2013 Mar 10 14:26:40.21
1878	2013 Mar 11 10:26:40.21	2013 Mar 13 05:53:15.72
1879	2013 Mar 14 01:53:15.72	2013 Mar 15 21:19:43.80
1880	2013 Mar 16 17:19:43.80	2013 Mar 18 12:47:03.33
1881	2013 Mar 19 08:47:03.33	2013 Mar 21 04:14:46.22
1882	2013 Mar 22 00:14:46.22	2013 Mar 23 19:41:41.71
1883	2013 Mar 24 15:41:41.71	2013 Mar 26 11:07:49.29
1884	2013 Mar 27 07:07:49.29	2013 Mar 29 02:34:45.86
1885	2013 Mar 29 22:34:45.86	2013 Mar 31 18:03:20.12
1886	2013 Apr 01 14:03:20.12	2013 Apr 03 09:32:32.02
1887	2013 Apr 04 05:32:32.02	2013 Apr 06 01:00:47.65
1888	2013 Apr 06 21:00:47.65	2013 Apr 08 16:27:41.08
1889	2013 Apr 09 12:27:41.08	2013 Apr 11 07:54:02.10
1890	2013 Apr 12 03:54:02.10	2013 Apr 13 23:21:03.93
1891	2013 Apr 14 19:21:03.93	2013 Apr 16 14:48:50.57
1892	2013 Apr 17 10:48:50.57	2013 Apr 19 06:16:15.17
1893	2013 Apr 20 02:16:15.17	2013 Apr 21 21:42:43.88
1894	2013 Apr 22 17:42:43.88	2013 Apr 24 13:09:26.47
1895	2013 Apr 25 09:09:26.47	2013 Apr 27 04:37:51.22
1896	2013 Apr 28 00:37:51.22	2013 Apr 29 20:07:26.29
1897	2013 Apr 30 16:07:26.29	2013 May 02 11:36:26.57
1898	2013 May 03 07:36:26.57	2013 May 05 03:04:05.97
1899	2013 May 05 23:04:05.97	2013 May 07 18:30:58.85
1900	2013 May 08 14:30:58.85	2013 May 10 09:58:14.54
1901	2013 May 11 05:58:14.54	2013 May 13 01:26:23.59
1902	2013 May 13 21:26:23.59	2013 May 15 16:54:34.26
1903	2013 May 16 12:54:34.26	2013 May 18 08:21:51.62
1904	2013 May 19 04:21:51.62	2013 May 20 23:48:50.65
1905	2013 May 21 19:48:50.65	2013 May 23 15:17:05.75
1906	2013 May 24 11:17:05.75	2013 May 26 06:46:57.33
1907	2013 May 27 02:46:57.33	2013 May 28 22:16:46.28
1908	2013 May 29 18:16:46.28	2013 May 31 13:45:11.31
1909	2013 Jun 01 09:45:11.31	2013 Jun 03 05:12:32.19
1910	2013 Jun 04 01:12:32.19	2013 Jun 05 20:39:56.39
1911	2013 Jun 06 16:39:56.39	2013 Jun 08 12:08:13.27
1912	2013 Jun 09 08:08:13.27	2013 Jun 11 03:36:50.73
1913	2013 Jun 11 23:36:50.73	2013 Jun 13 19:04:42.03
1914	2013 Jun 14 15:04:42.03	2013 Jun 16 10:31:58.76
1915	2013 Jun 17 06:31:58.76	2013 Jun 19 01:59:58.17
1916	2013 Jun 19 21:59:58.17	2013 Jun 21 17:29:33.03
1917	2013 Jun 22 13:29:33.03	2013 Jun 24 08:59:50.41
1918	2013 Jun 25 04:59:50.41	2013 Jun 27 00:28:58.40
1919	2013 Jun 27 20:28:58.40	2013 Jun 29 15:56:36.92
1920	2013 Jun 30 11:56:36.92	2013 Jul 02 07:23:59.48
1921	2013 Jul 03 03:23:59.48	2013 Jul 04 22:52:08.56
1922	2013 Jul 05 18:52:08.56	2013 Jul 07 14:20:54.17
1923	2013 Jul 08 10:20:54.17	2013 Jul 10 05:49:03.30
1924	2013 Jul 11 01:49:03.30	2013 Jul 12 21:16:25.91
1925	2013 Jul 13 17:16:25.91	2013 Jul 15 12:44:06.20
1926	2013 Jul 16 08:44:06.20	2013 Jul 18 04:13:03.67
1927	2013 Jul 19 00:13:03.67	2013 Jul 20 19:43:05.43
1928	2013 Jul 21 15:43:05.43	2013 Jul 23 11:12:37.33
1929	2013 Jul 24 07:12:37.33	2013 Jul 26 02:40:24.61
1930	2013 Jul 26 22:40:24.61	2013 Jul 28 18:07:19.52
1931	2013 Jul 29 14:07:19.52	2013 Jul 31 09:34:49.80
1932	2013 Aug 01 05:34:49.80	2013 Aug 03 01:03:06.88
1933	2013 Aug 03 21:03:06.88	2013 Aug 05 16:31:05.52
1934	2013 Aug 06 12:31:05.52	2013 Aug 08 07:58:09.93
1935	2013 Aug 09 03:58:09.93	2013 Aug 10 23:25:11.82
1936	2013 Aug 11 19:25:11.82	2013 Aug 13 14:53:14.29
1937	2013 Aug 14 10:53:14.29	2013 Aug 16 06:22:30.20
1938	2013 Aug 17 02:22:30.20	2013 Aug 18 21:51:53.47
1939	2013 Aug 19 17:51:53.47	2013 Aug 21 13:19:47.86
1940	2013 Aug 22 09:19:47.86	2013 Aug 24 04:46:18.61
1941	2013 Aug 25 00:46:18.61	2013 Aug 26 20:13:01.71
1942	2013 Aug 27 16:13:01.71	2013 Aug 29 11:40:39.67
1943	2013 Aug 30 07:40:39.67	2013 Sep 01 03:08:25.08
1944	2013 Sep 01 23:08:25.08	2013 Sep 03 18:35:19.67
1945	2013 Sep 04 14:35:19.67	2013 Sep 06 10:01:50.71
1946	2013 Sep 07 06:01:50.71	2013 Sep 09 01:29:12.13
1947	2013 Sep 09 21:29:12.13	2013 Sep 11 16:57:51.31
1948	2013 Sep 12 12:57:51.31	2013 Sep 14 08:27:00.34
1949	2013 Sep 15 04:27:00.34	2013 Sep 16 23:55:09.98
1950	2013 Sep 17 19:55:09.98	2013 Sep 19 15:21:45.36
1951	2013 Sep 20 11:21:45.36	2013 Sep 22 06:47:57.90
1952	2013 Sep 23 02:47:57.90	2013 Sep 24 22:15:04.50
1953	2013 Sep 25 18:15:04.50	2013 Sep 27 13:42:39.50
1954	2013 Sep 28 09:42:39.50	2013 Sep 30 05:09:40.83
1955	2013 Oct 01 01:09:40.83	2013 Oct 02 20:36:03.05
1956	2013 Oct 03 16:36:03.05	2013 Oct 05 12:02:53.49
1957	2013 Oct 06 08:02:53.49	2013 Oct 08 03:31:08.79
1958	2013 Oct 08 23:31:08.79	2013 Oct 10 19:00:16.56
1959	2013 Oct 11 15:00:16.56	2013 Oct 13 10:28:48.35
1960	2013 Oct 14 06:28:48.35	2013 Oct 16 01:55:54.15
1961	2013 Oct 16 21:55:54.15	2013 Oct 18 17:22:14.32
1962	2013 Oct 19 13:22:14.32	2013 Oct 21 08:49:11.16
1963	2013 Oct 22 04:49:11.16	2013 Oct 24 00:16:56.69
1964	2013 Oct 24 20:16:56.69	2013 Oct 26 15:44:28.48
1965	2013 Oct 27 11:44:28.48	2013 Oct 29 07:11:21.47
1966	2013 Oct 30 03:11:21.47	2013 Oct 31 22:38:16.85
1967	2013 Nov 01 18:38:16.85	2013 Nov 03 14:06:27.77
1968	2013 Nov 04 10:06:27.77	2013 Nov 06 05:35:56.76
1969	2013 Nov 07 01:35:56.76	2013 Nov 08 21:05:14.70
1970	2013 Nov 09 17:05:14.70	2013 Nov 11 12:33:11.58
1971	2013 Nov 12 08:33:11.58	2013 Nov 14 04:00:09.23
1972	2013 Nov 15 00:00:09.23	2013 Nov 16 19:27:19.77
1973	2013 Nov 17 15:27:19.77	2013 Nov 19 10:55:24.16
1974	2013 Nov 20 06:55:24.16	2013 Nov 22 02:23:35.71
1975	2013 Nov 22 22:23:35.71	2013 Nov 24 17:51:06.70
1976	2013 Nov 25 13:51:06.70	2013 Nov 27 09:18:21.85
1977	2013 Nov 28 05:18:21.85	2013 Nov 30 00:46:26.54
1978	2013 Nov 30 20:46:26.54	2013 Dec 02 16:15:58.24
1979	2013 Dec 03 12:15:58.24	2013 Dec 05 07:45:54.74
1980	2013 Dec 06 03:45:54.74	2013 Dec 07 23:14:37.80
1981	2013 Dec 08 19:14:37.80	2013 Dec 10 14:42:01.12
1982	2013 Dec 11 10:42:01.12	2013 Dec 13 06:09:17.80
1983	2013 Dec 14 02:09:17.80	2013 Dec 15 21:37:25.19
1984	2013 Dec 16 17:37:25.19	2013 Dec 18 13:05:58.01
1985	2013 Dec 19 09:05:58.01	2013 Dec 21 04:33:55.17
1986	2013 Dec 22 00:33:55.17	2013 Dec 23 20:01:22.46
1987	2013 Dec 24 16:01:22.46	2013 Dec 26 11:29:16.39
1988	2013 Dec 27 07:29:16.39	2013 Dec 29 02:58:24.17
1989	2013 Dec 29 22:58:24.17	2013 Dec 31 18:28:26.87
1990	2014 Jan 01 14:28:26.87	-

Orbit

Begin Orbit

End Orbit

1852

2013 Jan 01 16:14:54.43

2013 Jan 03 11:42:14.03

1853

2013 Jan 04 07:42:14.03

2013 Jan 06 03:10:11.13

1854

2013 Jan 06 23:10:11.13

2013 Jan 08 18:39:44.23

1855

2013 Jan 09 14:39:44.23

2013 Jan 11 10:10:10.47

1856

2013 Jan 12 06:10:10.47

2013 Jan 14 01:39:42.64

1857

2013 Jan 14 21:39:42.64

2013 Jan 16 17:07:37.88

1858

2013 Jan 17 13:07:37.88

2013 Jan 19 08:34:57.47

1859

2013 Jan 20 04:34:57.47

2013 Jan 22 00:02:54.27

1860

2013 Jan 22 20:02:54.27

2013 Jan 24 15:31:35.09

1861

2013 Jan 25 11:31:35.09

2013 Jan 27 06:59:45.49

1862

2013 Jan 28 02:59:45.49

2013 Jan 29 22:26:51.54

1863

2013 Jan 30 18:26:51.54

2013 Feb 01 13:54:06.60

1864

2013 Feb 02 09:54:06.60

2013 Feb 04 05:22:41.26

1865

2013 Feb 05 01:22:41.26

2013 Feb 06 20:52:28.16

1866

2013 Feb 07 16:52:28.16

2013 Feb 09 12:21:56.30

1867

2013 Feb 10 08:21:56.30

2013 Feb 12 03:49:46.63

1868

2013 Feb 12 23:49:46.63

2013 Feb 14 19:16:32.26

1869

2013 Feb 15 15:16:32.26

2013 Feb 17 10:43:36.32

1870

2013 Feb 18 06:43:36.32

2013 Feb 20 02:11:29.92

1871

2013 Feb 20 22:11:29.92

2013 Feb 22 17:39:24.70

1872

2013 Feb 23 13:39:24.70

2013 Feb 25 09:06:13.28

1873

2013 Feb 26 05:06:13.28

2013 Feb 28 00:32:41.46

1874

2013 Feb 28 20:32:41.46

2013 Mar 02 16:00:21.56

1875

2013 Mar 03 12:00:21.56

2013 Mar 05 07:29:25.42

1876

2013 Mar 06 03:29:25.42

2013 Mar 07 22:58:40.88

1877

2013 Mar 08 18:58:40.88

2013 Mar 10 14:26:40.21

1878

2013 Mar 11 10:26:40.21

2013 Mar 13 05:53:15.72

1879

2013 Mar 14 01:53:15.72

2013 Mar 15 21:19:43.80

1880

2013 Mar 16 17:19:43.80

2013 Mar 18 12:47:03.33

1881

2013 Mar 19 08:47:03.33

2013 Mar 21 04:14:46.22

1882

2013 Mar 22 00:14:46.22

2013 Mar 23 19:41:41.71

1883

2013 Mar 24 15:41:41.71

2013 Mar 26 11:07:49.29

1884

2013 Mar 27 07:07:49.29

2013 Mar 29 02:34:45.86

1885

2013 Mar 29 22:34:45.86

2013 Mar 31 18:03:20.12

1886

2013 Apr 01 14:03:20.12

2013 Apr 03 09:32:32.02

1887

2013 Apr 04 05:32:32.02

2013 Apr 06 01:00:47.65

1888

2013 Apr 06 21:00:47.65

2013 Apr 08 16:27:41.08

1889

2013 Apr 09 12:27:41.08

2013 Apr 11 07:54:02.10

1890

2013 Apr 12 03:54:02.10

2013 Apr 13 23:21:03.93

1891

2013 Apr 14 19:21:03.93

2013 Apr 16 14:48:50.57

1892

2013 Apr 17 10:48:50.57

2013 Apr 19 06:16:15.17

1893

2013 Apr 20 02:16:15.17

2013 Apr 21 21:42:43.88

1894

2013 Apr 22 17:42:43.88

2013 Apr 24 13:09:26.47

1895

2013 Apr 25 09:09:26.47

2013 Apr 27 04:37:51.22

1896

2013 Apr 28 00:37:51.22

2013 Apr 29 20:07:26.29

1897

2013 Apr 30 16:07:26.29

2013 May 02 11:36:26.57

1898

2013 May 03 07:36:26.57

2013 May 05 03:04:05.97

1899

2013 May 05 23:04:05.97

2013 May 07 18:30:58.85

1900

2013 May 08 14:30:58.85

2013 May 10 09:58:14.54

1901

2013 May 11 05:58:14.54

2013 May 13 01:26:23.59

1902

2013 May 13 21:26:23.59

2013 May 15 16:54:34.26

1903

2013 May 16 12:54:34.26

2013 May 18 08:21:51.62

1904

2013 May 19 04:21:51.62

2013 May 20 23:48:50.65

1905

2013 May 21 19:48:50.65

2013 May 23 15:17:05.75

1906

2013 May 24 11:17:05.75

2013 May 26 06:46:57.33

1907

2013 May 27 02:46:57.33

2013 May 28 22:16:46.28

1908

2013 May 29 18:16:46.28

2013 May 31 13:45:11.31

1909

2013 Jun 01 09:45:11.31

2013 Jun 03 05:12:32.19

1910

2013 Jun 04 01:12:32.19

2013 Jun 05 20:39:56.39

1911

2013 Jun 06 16:39:56.39

2013 Jun 08 12:08:13.27

1912

2013 Jun 09 08:08:13.27

2013 Jun 11 03:36:50.73

1913

2013 Jun 11 23:36:50.73

2013 Jun 13 19:04:42.03

1914

2013 Jun 14 15:04:42.03

2013 Jun 16 10:31:58.76

1915

2013 Jun 17 06:31:58.76

2013 Jun 19 01:59:58.17

1916

2013 Jun 19 21:59:58.17

2013 Jun 21 17:29:33.03

1917

2013 Jun 22 13:29:33.03

2013 Jun 24 08:59:50.41

1918

2013 Jun 25 04:59:50.41

2013 Jun 27 00:28:58.40

1919

2013 Jun 27 20:28:58.40

2013 Jun 29 15:56:36.92

1920

2013 Jun 30 11:56:36.92

2013 Jul 02 07:23:59.48

1921

2013 Jul 03 03:23:59.48

2013 Jul 04 22:52:08.56

1922

2013 Jul 05 18:52:08.56

2013 Jul 07 14:20:54.17

1923

2013 Jul 08 10:20:54.17

2013 Jul 10 05:49:03.30

1924

2013 Jul 11 01:49:03.30

2013 Jul 12 21:16:25.91

1925

2013 Jul 13 17:16:25.91

2013 Jul 15 12:44:06.20

1926

2013 Jul 16 08:44:06.20

2013 Jul 18 04:13:03.67

1927

2013 Jul 19 00:13:03.67

2013 Jul 20 19:43:05.43

1928

2013 Jul 21 15:43:05.43

2013 Jul 23 11:12:37.33

1929

2013 Jul 24 07:12:37.33

2013 Jul 26 02:40:24.61

1930

2013 Jul 26 22:40:24.61

2013 Jul 28 18:07:19.52

1931

2013 Jul 29 14:07:19.52

2013 Jul 31 09:34:49.80

1932

2013 Aug 01 05:34:49.80

2013 Aug 03 01:03:06.88

1933

2013 Aug 03 21:03:06.88

2013 Aug 05 16:31:05.52

1934

2013 Aug 06 12:31:05.52

2013 Aug 08 07:58:09.93

1935

2013 Aug 09 03:58:09.93

2013 Aug 10 23:25:11.82

1936

2013 Aug 11 19:25:11.82

2013 Aug 13 14:53:14.29

1937

2013 Aug 14 10:53:14.29

2013 Aug 16 06:22:30.20

1938

2013 Aug 17 02:22:30.20

2013 Aug 18 21:51:53.47

1939

2013 Aug 19 17:51:53.47

2013 Aug 21 13:19:47.86

1940

2013 Aug 22 09:19:47.86

2013 Aug 24 04:46:18.61

1941

2013 Aug 25 00:46:18.61

2013 Aug 26 20:13:01.71

1942

2013 Aug 27 16:13:01.71

2013 Aug 29 11:40:39.67

1943

2013 Aug 30 07:40:39.67

2013 Sep 01 03:08:25.08

1944

2013 Sep 01 23:08:25.08

2013 Sep 03 18:35:19.67

1945

2013 Sep 04 14:35:19.67

2013 Sep 06 10:01:50.71

1946

2013 Sep 07 06:01:50.71

2013 Sep 09 01:29:12.13

1947

2013 Sep 09 21:29:12.13

2013 Sep 11 16:57:51.31

1948

2013 Sep 12 12:57:51.31

2013 Sep 14 08:27:00.34

1949

2013 Sep 15 04:27:00.34

2013 Sep 16 23:55:09.98

1950

2013 Sep 17 19:55:09.98

2013 Sep 19 15:21:45.36

1951

2013 Sep 20 11:21:45.36

2013 Sep 22 06:47:57.90

1952

2013 Sep 23 02:47:57.90

2013 Sep 24 22:15:04.50

1953

2013 Sep 25 18:15:04.50

2013 Sep 27 13:42:39.50

1954

2013 Sep 28 09:42:39.50

2013 Sep 30 05:09:40.83

1955

2013 Oct 01 01:09:40.83

2013 Oct 02 20:36:03.05

1956

2013 Oct 03 16:36:03.05

2013 Oct 05 12:02:53.49

1957

2013 Oct 06 08:02:53.49

2013 Oct 08 03:31:08.79

1958

2013 Oct 08 23:31:08.79

2013 Oct 10 19:00:16.56

1959

2013 Oct 11 15:00:16.56

2013 Oct 13 10:28:48.35

1960

2013 Oct 14 06:28:48.35

2013 Oct 16 01:55:54.15

1961

2013 Oct 16 21:55:54.15

2013 Oct 18 17:22:14.32

1962

2013 Oct 19 13:22:14.32

2013 Oct 21 08:49:11.16

1963

2013 Oct 22 04:49:11.16

2013 Oct 24 00:16:56.69

1964

2013 Oct 24 20:16:56.69

2013 Oct 26 15:44:28.48

1965

2013 Oct 27 11:44:28.48

2013 Oct 29 07:11:21.47

1966

2013 Oct 30 03:11:21.47

2013 Oct 31 22:38:16.85

1967

2013 Nov 01 18:38:16.85

2013 Nov 03 14:06:27.77

1968

2013 Nov 04 10:06:27.77

2013 Nov 06 05:35:56.76

1969

2013 Nov 07 01:35:56.76

2013 Nov 08 21:05:14.70

1970

2013 Nov 09 17:05:14.70

2013 Nov 11 12:33:11.58

1971

2013 Nov 12 08:33:11.58

2013 Nov 14 04:00:09.23

1972

2013 Nov 15 00:00:09.23

2013 Nov 16 19:27:19.77

1973

2013 Nov 17 15:27:19.77

2013 Nov 19 10:55:24.16

1974

2013 Nov 20 06:55:24.16

2013 Nov 22 02:23:35.71

1975

2013 Nov 22 22:23:35.71

2013 Nov 24 17:51:06.70

1976

2013 Nov 25 13:51:06.70

2013 Nov 27 09:18:21.85

1977

2013 Nov 28 05:18:21.85

2013 Nov 30 00:46:26.54

1978

2013 Nov 30 20:46:26.54

2013 Dec 02 16:15:58.24

1979

2013 Dec 03 12:15:58.24

2013 Dec 05 07:45:54.74

1980

2013 Dec 06 03:45:54.74

2013 Dec 07 23:14:37.80

1981

2013 Dec 08 19:14:37.80

2013 Dec 10 14:42:01.12

1982

2013 Dec 11 10:42:01.12

2013 Dec 13 06:09:17.80

1983

2013 Dec 14 02:09:17.80

2013 Dec 15 21:37:25.19

1984

2013 Dec 16 17:37:25.19

2013 Dec 18 13:05:58.01

1985

2013 Dec 19 09:05:58.01

2013 Dec 21 04:33:55.17

1986

2013 Dec 22 00:33:55.17

2013 Dec 23 20:01:22.46

1987

2013 Dec 24 16:01:22.46

2013 Dec 26 11:29:16.39

1988

2013 Dec 27 07:29:16.39

2013 Dec 29 02:58:24.17

1989

2013 Dec 29 22:58:24.17

2013 Dec 31 18:28:26.87

1990

2014 Jan 01 14:28:26.87

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.