Chandra X-Ray Observatory
	(CXC)

Times of Orbital Events for Jan 1, 2014 to Jan. 1, 2015 (Cycle15)

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.

OrbitBegin OrbitEnd Orbit
19902014 Jan 01 16:04:20.292014 Jan 03 11:33:58.63
19912014 Jan 04 07:33:58.632014 Jan 06 03:01:54.87
19922014 Jan 06 23:01:54.872014 Jan 08 18:29:18.73
19932014 Jan 09 14:29:18.732014 Jan 11 09:57:26.61
19942014 Jan 12 05:57:26.612014 Jan 14 01:26:11.80
19952014 Jan 14 21:26:11.802014 Jan 16 16:54:30.70
19962014 Jan 17 12:54:30.702014 Jan 19 08:22:08.85
19972014 Jan 20 04:22:08.852014 Jan 21 23:49:57.99
19982014 Jan 22 19:49:57.992014 Jan 24 15:18:43.41
19992014 Jan 25 11:18:43.412014 Jan 27 06:48:30.16
20002014 Jan 28 02:48:30.162014 Jan 29 22:18:14.50
20012014 Jan 30 18:18:14.502014 Feb 01 13:46:18.37
20022014 Feb 02 09:46:18.372014 Feb 04 05:13:08.18
20032014 Feb 05 01:13:08.182014 Feb 06 20:40:26.95
20042014 Feb 07 16:40:26.952014 Feb 09 12:08:34.66
20052014 Feb 10 08:08:34.662014 Feb 12 03:36:33.88
20062014 Feb 12 23:36:33.882014 Feb 14 19:03:49.83
20072014 Feb 15 15:03:49.832014 Feb 17 10:30:58.92
20082014 Feb 18 06:30:58.922014 Feb 20 01:58:56.49
20092014 Feb 20 21:58:56.492014 Feb 22 17:27:56.08
20102014 Feb 23 13:27:56.082014 Feb 25 08:57:19.41
20112014 Feb 26 04:57:19.412014 Feb 28 00:25:35.16
20122014 Feb 28 20:25:35.162014 Mar 02 15:52:15.02
20132014 Mar 03 11:52:15.022014 Mar 05 07:18:48.34
20142014 Mar 06 03:18:48.342014 Mar 07 22:46:22.16
20152014 Mar 08 18:46:22.162014 Mar 10 14:14:09.58
20162014 Mar 11 10:14:09.582014 Mar 13 05:41:22.62
20172014 Mar 14 01:41:22.622014 Mar 15 21:08:14.66
20182014 Mar 16 17:08:14.662014 Mar 18 12:35:45.75
20192014 Mar 19 08:35:45.752014 Mar 21 04:04:24.39
20202014 Mar 22 00:04:24.392014 Mar 23 19:33:41.48
20212014 Mar 24 15:33:41.482014 Mar 26 11:02:23.18
20222014 Mar 27 07:02:23.182014 Mar 29 02:29:32.27
20232014 Mar 29 22:29:32.272014 Mar 31 17:55:57.77
20242014 Apr 01 13:55:57.772014 Apr 03 09:23:13.85
20252014 Apr 04 05:23:13.852014 Apr 06 00:51:05.38
20262014 Apr 06 20:51:05.382014 Apr 08 16:18:37.06
20272014 Apr 09 12:18:37.062014 Apr 11 07:45:39.89
20282014 Apr 12 03:45:39.892014 Apr 13 23:13:03.26
20292014 Apr 14 19:13:03.262014 Apr 16 14:41:34.97
20302014 Apr 17 10:41:34.972014 Apr 19 06:11:03.85
20312014 Apr 20 02:11:03.852014 Apr 21 21:40:15.55
20322014 Apr 22 17:40:15.552014 Apr 24 13:08:10.08
20332014 Apr 25 09:08:10.082014 Apr 27 04:35:04.24
20342014 Apr 28 00:35:04.242014 Apr 29 20:02:19.56
20352014 Apr 30 16:02:19.562014 May 02 11:30:27.63
20362014 May 03 07:30:27.632014 May 05 02:58:31.77
20372014 May 05 22:58:31.772014 May 07 18:26:05.52
20382014 May 08 14:26:05.522014 May 10 09:53:43.52
20392014 May 11 05:53:43.522014 May 13 01:22:17.18
20402014 May 13 21:22:17.182014 May 15 16:52:01.03
20412014 May 16 12:52:01.032014 May 18 08:21:53.42
20422014 May 19 04:21:53.422014 May 20 23:50:37.32
20432014 May 21 19:50:37.322014 May 23 15:18:07.07
20442014 May 24 11:18:07.072014 May 26 06:45:35.83
20452014 May 27 02:45:35.832014 May 28 22:13:52.97
20462014 May 29 18:13:52.972014 May 31 13:42:27.75
20472014 Jun 01 09:42:27.752014 Jun 03 05:10:27.26
20482014 Jun 04 01:10:27.262014 Jun 05 20:38:15.24
20492014 Jun 06 16:38:15.242014 Jun 08 12:06:40.36
20502014 Jun 09 08:06:40.362014 Jun 11 03:36:13.78
20512014 Jun 11 23:36:13.782014 Jun 13 19:06:22.49
20522014 Jun 14 15:06:22.492014 Jun 16 10:35:39.57
20532014 Jun 17 06:35:39.572014 Jun 19 02:03:27.68
20542014 Jun 19 22:03:27.682014 Jun 21 17:30:50.00
20552014 Jun 22 13:30:50.002014 Jun 24 08:58:56.37
20562014 Jun 25 04:58:56.372014 Jun 27 00:27:33.30
20572014 Jun 27 20:27:33.302014 Jun 29 15:55:41.73
20582014 Jun 30 11:55:41.732014 Jul 02 07:23:26.19
20592014 Jul 03 03:23:26.192014 Jul 04 22:51:33.26
20602014 Jul 05 18:51:33.262014 Jul 07 14:20:35.74
20612014 Jul 08 10:20:35.742014 Jul 10 05:50:30.63
20622014 Jul 11 01:50:30.632014 Jul 12 21:20:05.88
20632014 Jul 13 17:20:05.882014 Jul 15 12:48:06.55
20642014 Jul 16 08:48:06.552014 Jul 18 04:15:09.30
20652014 Jul 19 00:15:09.302014 Jul 20 19:42:46.74
20662014 Jul 21 15:42:46.742014 Jul 23 11:11:05.51
20672014 Jul 24 07:11:05.512014 Jul 26 02:39:09.76
20682014 Jul 26 22:39:09.762014 Jul 28 18:06:39.18
20692014 Jul 29 14:06:39.182014 Jul 31 09:34:18.11
20702014 Aug 01 05:34:18.112014 Aug 03 01:02:41.02
20712014 Aug 03 21:02:41.022014 Aug 05 16:31:56.44
20722014 Aug 06 12:31:56.442014 Aug 08 08:01:25.11
20732014 Aug 09 04:01:25.112014 Aug 10 23:29:37.23
20742014 Aug 11 19:29:37.232014 Aug 13 14:56:19.11
20752014 Aug 14 10:56:19.112014 Aug 16 06:23:08.82
20762014 Aug 17 02:23:08.822014 Aug 18 21:50:51.11
20772014 Aug 19 17:50:51.112014 Aug 21 13:18:39.08
20782014 Aug 22 09:18:39.082014 Aug 24 04:45:52.29
20792014 Aug 25 00:45:52.292014 Aug 26 20:13:02.30
20802014 Aug 27 16:13:02.302014 Aug 29 11:40:51.76
20812014 Aug 30 07:40:51.762014 Sep 01 03:09:33.75
20822014 Sep 01 23:09:33.752014 Sep 03 18:38:43.34
20832014 Sep 04 14:38:43.342014 Sep 06 10:07:12.14
20842014 Sep 07 06:07:12.142014 Sep 09 01:34:05.17
20852014 Sep 09 21:34:05.172014 Sep 11 17:00:25.40
20862014 Sep 12 13:00:25.402014 Sep 14 08:27:40.36
20872014 Sep 15 04:27:40.362014 Sep 16 23:55:20.09
20882014 Sep 17 19:55:20.092014 Sep 19 15:22:35.61
20892014 Sep 20 11:22:35.612014 Sep 22 06:49:37.29
20902014 Sep 23 02:49:37.292014 Sep 24 22:17:10.75
20912014 Sep 25 18:17:10.752014 Sep 27 13:45:39.59
20922014 Sep 28 09:45:39.592014 Sep 30 05:14:46.96
20932014 Oct 01 01:14:46.962014 Oct 02 20:43:35.81
20942014 Oct 03 16:43:35.812014 Oct 05 12:11:07.12
20952014 Oct 06 08:11:07.122014 Oct 08 03:37:32.87
20962014 Oct 08 23:37:32.872014 Oct 10 19:04:31.54
20972014 Oct 11 15:04:31.542014 Oct 13 10:32:15.30
20982014 Oct 14 06:32:15.302014 Oct 16 01:59:46.62
20992014 Oct 16 21:59:46.622014 Oct 18 17:27:01.37
21002014 Oct 19 13:27:01.372014 Oct 21 08:54:35.30
21012014 Oct 22 04:54:35.302014 Oct 24 00:23:03.06
21022014 Oct 24 20:23:03.062014 Oct 26 15:52:21.10
21032014 Oct 27 11:52:21.102014 Oct 29 07:21:39.84
21042014 Oct 30 03:21:39.842014 Oct 31 22:49:55.49
21052014 Nov 01 18:49:55.492014 Nov 03 14:17:01.63
21062014 Nov 04 10:17:01.632014 Nov 06 05:44:07.25
21072014 Nov 07 01:44:07.252014 Nov 08 21:12:05.22
21082014 Nov 09 17:12:05.222014 Nov 11 12:40:07.15
21092014 Nov 12 08:40:07.152014 Nov 14 04:07:45.84
21102014 Nov 15 00:07:45.842014 Nov 16 19:35:32.77
21112014 Nov 17 15:35:32.772014 Nov 19 11:04:04.64
21122014 Nov 20 07:04:04.642014 Nov 22 02:33:33.01
21132014 Nov 22 22:33:33.012014 Nov 24 18:03:21.27
21142014 Nov 25 14:03:21.272014 Nov 27 09:32:17.42
21152014 Nov 28 05:32:17.422014 Nov 30 00:59:58.60
21162014 Nov 30 20:59:58.602014 Dec 02 16:27:15.28
21172014 Dec 03 12:27:15.282014 Dec 05 07:55:13.49
21182014 Dec 06 03:55:13.492014 Dec 07 23:23:34.17
21192014 Dec 08 19:23:34.172014 Dec 10 14:51:27.43
21202014 Dec 11 10:51:27.432014 Dec 13 06:19:14.94
21212014 Dec 14 02:19:14.942014 Dec 15 21:47:34.65
21222014 Dec 16 17:47:34.652014 Dec 18 13:16:45.98
21232014 Dec 19 09:16:45.982014 Dec 21 04:46:35.52
21242014 Dec 22 00:46:35.522014 Dec 23 20:15:54.20
21252014 Dec 24 16:15:54.202014 Dec 26 11:43:49.26
21262014 Dec 27 07:43:49.262014 Dec 29 03:10:57.62
21272014 Dec 29 23:10:57.62-

Last modified: 12/14/16



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