Fermi Timeline Posting
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MW 952: Mission Week 952 begins with a continuation of the asymmetric -50/+60 deg. profile from the previous week. Then, on DOY 239 (2026-8-27) at 01:53 UT a 10-minute freeze observation occurs during which an asymmetric -50/+60 deg. profile is loaded. Next, on DOY 243 (2026-8-31) at 12:57 UT a 10-minute freeze observation occurs during which a symmetric +/-50 deg. profile is loaded. This profile continues until the end of the mission week. The survey repeat period is based on a 5664s orbital period. Note that positive rock angles are south, and negative rock angles are north. (updated: 23-Aug-2026)
MW 953: Mission Week 953 begins with a continuation of the symmetric +/-50 deg. profile from the previous week. Then, on DOY 246 (2026-9-3) at 00:35 UT a 10-minute freeze observation occurs during which a symmetric +/-50 deg. profile is loaded. This profile continues until the end of the mission week. The survey repeat period is based on a 5664s orbital period. Note that positive rock angles are south, and negative rock angles are north. (updated: 27-Aug-2026)
MW 954: Mission Week 954 begins with a continuation of the symmetric +/-50 deg. profile from the previous week. Then, on DOY 253 (2026-9-10) at 01:02 UT a 10-minute freeze observation occurs during which a symmetric +/-50 deg. profile is loaded. Next, on DOY 254 (2026-9-11) at 08:28 UT a 10-minute freeze observation occurs during which an asymmetric +50/-60 deg. profile is loaded. Following this, on DOY 258 (2026-9-15) at 16:16 UT a 10-minute freeze observation occurs during which a +50 deg. modified sine profile is loaded. This profile continues until the end of the mission week. The survey repeat period is based on a 5664s orbital period. Note that positive rock angles are south, and negative rock angles are north. (updated: 19-Aug-2026)
This utility allows you to view Fermi's observing timeline. It defaults to the current AO cycle, but you can also view past AO cycles, along with timelines showing a summary of the Targets of Opportunity (TOO), Automatic Re-pointing Requests (ARR), other pointed observations, and non-science periods. Explanations of the columns can be found in the glossary. Pointed observations (like ToOs and ARRs) that interrupted the schedule are indicated in bold. Preliminary scheduled observations are indicated in italics.
Note: Updates to this page can be delayed by unexpected timeline changes. For information about on-going Target-of-Opportunity observations, check the Approved TOOs page. If you have JavaScript enabled on your browser, you may click on column names to sort by that column.
| # | Obs ID | Mission Week |
Start Time (UTC) |
Stop Time (UTC) |
Duration (sec) |
RA (J2000) |
Dec (J2000) |
Mode | Type | Target | PI | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 180416-60-1 | 950 | 2026:228:03:20:00 2026-08-16 03:20:00 |
2026:232:00:00:00 2026-08-20 00:00:00 |
333600 | Profiled | Survey | +50/-50 profile MW950 Part 3 | Fermi | +50, -50 two orbit rock, 5664 | ||
| 2 | 180416-61-1 | 951 | 2026:232:00:10:00 2026-08-20 00:10:00 |
2026:237:18:29:00 2026-08-25 18:29:00 |
497940 | Profiled | Survey | +50/-50 profile MW951 Part 1 | Fermi | +50, -50 two orbit rock, 5664 | ||
| 3 | 180416-62-1 | 952 | 2026:243:13:07:00 2026-08-31 13:07:00 |
2026:246:00:00:00 2026-09-03 00:00:00 |
211980 | Profiled | Survey | +50/-50 profile MW952 | Fermi | +50, -50 two orbit rock, 5664 | ||
| 4 | 180416-63-1 | 953 | 2026:246:00:00:00 2026-09-03 00:00:00 |
2026:246:00:35:00 2026-09-03 00:35:00 |
2100 | Profiled | Survey | +50/-50 profile MW953 bridge | Fermi | +50, -50 two orbit rock, 5664 | ||
| 5 | 180416-64-1 | 953 | 2026:246:00:45:00 2026-09-03 00:45:00 |
2026:253:00:00:00 2026-09-10 00:00:00 |
602100 | Profiled | Survey | +50/-50 profile MW953 Part 1 | Fermi | +50, -50 two orbit rock, 5664 | ||
| 6 | 180417-56-1 | 950 | 2026:225:00:00:00 2026-08-13 00:00:00 |
2026:225:02:45:00 2026-08-13 02:45:00 |
9900 | Profiled | Survey | +50 modified sine MW950 Bridge | Fermi | +50 modified sine 5666s | ||
| 7 | 180417-57-1 | 950 | 2026:225:02:55:00 2026-08-13 02:55:00 |
2026:225:05:59:00 2026-08-13 05:59:00 |
11040 | Profiled | Survey | +50 modified sine MW950 Part 1 | Fermi | +50 modified sine 5664s | ||
| 8 | 180417-58-1 | 950 | 2026:225:06:09:00 2026-08-13 06:09:00 |
2026:228:03:10:00 2026-08-16 03:10:00 |
248460 | Profiled | Survey | +50/-60 profile MW50 Part 2 | Fermi | +50, -60 two orbit rock, 5664s | ||
| 9 | 180417-60-1 | 951 | 2026:237:18:39:00 2026-08-25 18:39:00 |
2026:239:00:00:00 2026-08-27 00:00:00 |
105660 | Profiled | Survey | -50/+60 profile MW951 Part 2 | Fermi | -50, +60 two orbit rock, 5664s | ||
| 10 | 180417-61-1 | 952 | 2026:239:00:00:00 2026-08-27 00:00:00 |
2026:239:01:53:00 2026-08-27 01:53:00 |
6780 | Profiled | Survey | -50/+60 profile MW952 Part 1 | Fermi | -50, +60 two orbit rock, 5664s | ||
| 11 | 180417-62-1 | 952 | 2026:239:02:03:00 2026-08-27 02:03:00 |
2026:243:12:57:00 2026-08-31 12:57:00 |
384840 | Profiled | Survey | -50/+60 profile MW952 Part 2 | Fermi | -50, +60 two orbit rock, 5664s | ||
| 12 | 180801-188-1 | 950 | 2026:225:02:45:00 2026-08-13 02:45:00 |
2026:225:02:55:00 2026-08-13 02:55:00 |
600 | 187.07061 | -47.44659 | Pointed | Freeze | Freeze for loading 180417-57-1 | TAKO | Inserted by TAKO at 2026-225-02:45:00 |
| 13 | 180801-189-1 | 950 | 2026:225:05:59:00 2026-08-13 05:59:00 |
2026:225:06:09:00 2026-08-13 06:09:00 |
600 | 201.74188 | -40.00844 | Pointed | Freeze | Freeze for loading 180417-58-1 | TAKO | Inserted by TAKO at 2026-225-05:59:00 |
| 14 | 180801-190-1 | 950 | 2026:228:03:10:00 2026-08-16 03:10:00 |
2026:228:03:20:00 2026-08-16 03:20:00 |
600 | 189.72643 | -36.09123 | Pointed | Freeze | Freeze for loading 180416-60-1 | TAKO | Inserted by TAKO at 2026-228-03:10:00 |
| 15 | 190416-64-1 | 954 | 2026:253:00:00:00 2026-09-10 00:00:00 |
2026:253:01:02:00 2026-09-10 01:02:00 |
3720 | Profiled | Survey | +50/-50 profile MW954 Part 1 | Fermi | +50, -50 two orbit rock, 5664 | ||
| 16 | 190416-64-2 | 954 | 2026:253:01:12:00 2026-09-10 01:12:00 |
2026:254:08:28:00 2026-09-11 08:28:00 |
112560 | Profiled | Survey | +50/-50 profile MW954 Part 2 | Fermi | +50, -50 two orbit rock, 5664 | ||
| 17 | 190417-1-1 | 954 | 2026:254:08:38:00 2026-09-11 08:38:00 |
2026:258:16:16:00 2026-09-15 16:16:00 |
373080 | Profiled | Survey | +50/-60 profile MW954 | Fermi | +50, -60 two orbit rock, 5664s | ||
| 18 | 190417-2-1 | 954 | 2026:258:16:26:00 2026-09-15 16:26:00 |
2026:260:00:00:00 2026-09-17 00:00:00 |
113640 | Profiled | Survey | +50 modified sine MW954 | Fermi | +50 modified sine 5664s | ||
| 19 | 190417-3-1 | 955 | 2026:260:00:00:00 2026-09-17 00:00:00 |
2026:260:01:23:00 2026-09-17 01:23:00 |
4980 | Profiled | Survey | +50 modified sine MW955 - part 1 | Fermi | +50 modified sine 5664s | ||
| 20 | 190417-4-1 | 955 | 2026:260:01:33:00 2026-09-17 01:33:00 |
2026:265:12:03:00 2026-09-22 12:03:00 |
469800 | Profiled | Survey | +50 modified sine MW955 - part 2 | Fermi | +50 modified sine 5665s | ||
| 21 | 190417-5-1 | 955 | 2026:265:12:13:00 2026-09-22 12:13:00 |
2026:267:00:00:00 2026-09-24 00:00:00 |
128820 | Profiled | Survey | +50/-60 profile MW955 | Fermi | +50, -60 two orbit rock, 5665s | ||
| 22 | 190801-1-1 | 951 | 2026:232:00:00:00 2026-08-20 00:00:00 |
2026:232:00:10:00 2026-08-20 00:10:00 |
600 | 137.45415 | 65.23785 | Pointed | Freeze | Freeze for loading 180416-61-1 | TAKO | Inserted by TAKO at 2026-232-00:00:00 |
| 23 | 190801-10-1 | 953 | 2026:246:00:35:00 2026-09-03 00:35:00 |
2026:246:00:45:00 2026-09-03 00:45:00 |
600 | 191.38176 | 63.56074 | Pointed | Freeze | Freeze for loading 180416-64-1 | TAKO | Inserted by TAKO at 2026-246-00:35:00 |
| 24 | 190801-2-1 | 951 | 2026:237:18:29:00 2026-08-25 18:29:00 |
2026:237:18:39:00 2026-08-25 18:39:00 |
600 | 199.16594 | 74.49398 | Pointed | Freeze | Freeze for loading 180417-60-1 | TAKO | Inserted by TAKO at 2026-237-18:29:00 |
| 25 | 190801-3-1 | 954 | 2026:253:01:02:00 2026-09-10 01:02:00 |
2026:253:01:12:00 2026-09-10 01:12:00 |
600 | 150.19873 | -55.71411 | Pointed | Freeze | Freeze for loading 190416-64-2 | TAKO | Inserted by TAKO at 2026-253-01:02:00 |
| 26 | 190801-4-1 | 954 | 2026:254:08:28:00 2026-09-11 08:28:00 |
2026:254:08:38:00 2026-09-11 08:38:00 |
600 | 143.2867 | -56.80198 | Pointed | Freeze | Freeze for loading 190417-1-1 | TAKO | Inserted by TAKO at 2026-254-08:28:00 |
| 27 | 190801-5-1 | 954 | 2026:258:16:16:00 2026-09-15 16:16:00 |
2026:258:16:26:00 2026-09-15 16:26:00 |
600 | 139.02398 | -67.12747 | Pointed | Freeze | Freeze for loading 190417-2-1 | TAKO | Inserted by TAKO at 2026-258-16:16:00 |
| 28 | 190801-6-1 | 952 | 2026:239:01:53:00 2026-08-27 01:53:00 |
2026:239:02:03:00 2026-08-27 02:03:00 |
600 | 176.8635 | 75.37307 | Pointed | Freeze | Freeze for loading 180417-62-1 | TAKO | Inserted by TAKO at 2026-239-01:53:00 |
| 29 | 190801-7-1 | 952 | 2026:243:12:57:00 2026-08-31 12:57:00 |
2026:243:13:07:00 2026-08-31 13:07:00 |
600 | 223.47108 | 56.98001 | Pointed | Freeze | Freeze for loading 180416-62-1 | TAKO | Inserted by TAKO at 2026-243-12:57:00 |
| 30 | 190801-8-1 | 955 | 2026:260:01:23:00 2026-09-17 01:23:00 |
2026:260:01:33:00 2026-09-17 01:33:00 |
600 | 189.98272 | -71.70327 | Pointed | Freeze | Freeze for loading 190417-4-1 | TAKO | Inserted by TAKO at 2026-260-01:23:00 |
| 31 | 190801-9-1 | 955 | 2026:265:12:03:00 2026-09-22 12:03:00 |
2026:265:12:13:00 2026-09-22 12:13:00 |
600 | 251.32521 | -56.4203 | Pointed | Freeze | Freeze for loading 190417-5-1 | TAKO | Inserted by TAKO at 2026-265-12:03:00 |