Page content updated: 2026:254:19:00:01 ( 3:00 PM Fri 11-Sep )

Key Snapshot and SOH Values (from current comm)
Obsid32930
Format1_NORM
RadMonENAB
CPE StatusNORM
RA352.215
Dec5.258
Roll164.335
Pitch169.61
Sim Z-46728
Sim Focus-715
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128INAC
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131INAC
SCS 132ACT
SCS 133ACT
Snapshot from 2026:254:18:58:30 (from current comm)

acePred
NOW
Cursor date
Cursor delta
Next comm
Delta
Station
Activity
ACE fluence
ACE P3 flux
HRC proxy
--- Latest values ---
ACE P3 flux
ACE 2hr avg
HRC proxy
SIM-Z
Pitch
RA
Dec
Roll
PCAD
Obsid
SI
Grating
SI mode
Power cmd
CCD, FEP
Vid, Clock

Chandra Events (Load link unavailable)
Time (UT)EventDelta timeTime (Eastern)
2026:254:10:39:54Maneuver to 59.75579 -19.17589 87.917 [2026:254:11:03:11]- 8:20 6:39 AM Fri 11-Sep
2026:254:11:03:11ER Obsid: 41152 (0 ksec) Purpose: Perigee Attitude - 7:56 7:03 AM Fri 11-Sep
2026:254:11:03:32Maneuver to 153.90459 -57.27199 159.997 [2026:254:11:31:27]- 7:56 7:03 AM Fri 11-Sep
2026:254:11:35:57Obsid: 32928 SI: ACIS-I (13 ksec) Target: PSR J1015-5719 - 7:24 7:35 AM Fri 11-Sep
2026:254:12:20:00Comm pass on DSS-53 (duration 1:00)- 6:40 8:20 AM Fri 11-Sep
2026:254:15:09:37Load SEP0726A:CL254:1501 [2026:256:02:40:01]- 3:5011:09 AM Fri 11-Sep
2026:254:15:09:37Load SEP0726A:CL254:1501 [2026:256:02:40:01]- 3:5011:09 AM Fri 11-Sep
2026:254:15:12:37Maneuver to 350.10600 -13.80000 3.993 [2026:254:15:47:33]- 3:4711:12 AM Fri 11-Sep
2026:254:15:52:03ER Obsid: 41151 (0 ksec) Purpose: Perigee Attitude - 3:0711:52 AM Fri 11-Sep
2026:254:16:07:44Maneuver to 352.21865 5.25237 164.335 [2026:254:16:54:23]- 2:5212:07 PM Fri 11-Sep
2026:254:16:58:53Obsid: 32930 SI: HRC-I (7 ksec) Target: G29-38 - 2:0112:58 PM Fri 11-Sep
2026:254:18:10:00Comm pass on DSS-54 (duration 1:00)- 0:50 2:10 PM Fri 11-Sep
2026:254:19:00:01--------------- NOW --------------- 0:00 3:00 PM Fri 11-Sep
2026:254:19:03:53Maneuver to 182.55430 56.65392 343.795 [2026:254:19:41:11] 0:03 3:03 PM Fri 11-Sep
2026:254:19:45:41Obsid: 31263 SI: ACIS-S (15 ksec) Target: WISEA J121024.5 0:45 3:45 PM Fri 11-Sep
2026:254:23:55:41Maneuver to 60.00000 41.00000 106.529 [2026:255:00:22:45] 4:55 7:55 PM Fri 11-Sep
2026:255:00:22:45ER Obsid: 41150 (0 ksec) Purpose: Intermediate Attitud 5:22 8:22 PM Fri 11-Sep
2026:255:00:23:06Maneuver to 9.59368 -2.15389 86.000 [2026:255:00:50:22] 5:23 8:23 PM Fri 11-Sep
2026:255:00:54:52Obsid: 32932 SI: ACIS-S (14 ksec) Target: 3CR 17 5:54 8:54 PM Fri 11-Sep
2026:255:01:10:00Comm pass on DSS-24 (duration 1:00) 6:09 9:10 PM Fri 11-Sep
2026:255:04:56:32Maneuver to 135.56079 -40.56826 129.521 [2026:255:05:33:39] 9:5612:56 AM Sat 12-Sep
2026:255:05:00:07Grating: HETG 10:00 1:00 AM Sat 12-Sep
2026:255:05:38:09Obsid: 30500 SI: ACIS-S (15 ksec) Target: Vela X-1 10:38 1:38 AM Sat 12-Sep
2026:255:09:48:09Maneuver to 16.94656 -17.53007 63.000 [2026:255:10:21:14] 14:48 5:48 AM Sat 12-Sep
2026:255:09:51:43Grating: NONE 14:51 5:51 AM Sat 12-Sep
2026:255:10:30:34Obsid: 32924 SI: HRC-I (5 ksec) Target: VV 114 15:30 6:30 AM Sat 12-Sep
2026:255:11:30:00Comm pass on DSS-65 (duration 1:00) 16:29 7:30 AM Sat 12-Sep
2026:255:11:53:54Maneuver to 77.06793 27.87095 95.151 [2026:255:12:23:07] 16:53 7:53 AM Sat 12-Sep
2026:255:12:27:37Obsid: 32923 SI: ACIS-S (16 ksec) Target: B2.2 0505+27 17:27 8:27 AM Sat 12-Sep
2026:255:16:54:17Maneuver to 302.77789 -36.08413 294.659 [2026:255:17:42:12] 21:5412:54 PM Sat 12-Sep
2026:255:17:46:42Obsid: 31055 SI: ACIS-S (46 ksec) Target: GL 783 22:46 1:46 PM Sat 12-Sep
2026:255:20:05:00Comm pass on DSS-54 (duration 1:00) 1d 01:04 4:05 PM Sat 12-Sep
2026:256:02:40:00Comm pass on DSS-23 (duration 1:00) 1d 07:3910:40 PM Sat 12-Sep
2026:256:04:10:01Load SEP0726A:CL256:0401 [2026:257:02:09:17] 1d 09:1012:10 AM Sun 13-Sep
2026:256:04:10:01Load SEP0726A:CL256:0401 [2026:257:02:09:17] 1d 09:1012:10 AM Sun 13-Sep
2026:256:06:35:38Maneuver to 340.83200 -9.50000 298.562 [2026:256:06:56:40] 1d 11:35 2:35 AM Sun 13-Sep
2026:256:06:39:12Grating: HETG 1d 11:39 2:39 AM Sun 13-Sep
2026:256:06:41:15RADMON Disable 1d 11:41 2:41 AM Sun 13-Sep
2026:256:07:01:10ER Obsid: 41149 (3 ksec) Purpose: Perigee Attitude 1d 12:01 3:01 AM Sun 13-Sep
2026:256:07:51:10Maneuver to 219.00000 -26.60000 244.158 [2026:256:08:27:17] 1d 12:51 3:51 AM Sun 13-Sep
2026:256:08:31:47ER Obsid: 41148 (3 ksec) Purpose: Perigee Attitude 1d 13:31 4:31 AM Sun 13-Sep
2026:256:09:21:47Maneuver to 340.83200 -9.50000 298.445 [2026:256:09:57:55] 1d 14:21 5:21 AM Sun 13-Sep
2026:256:10:00:00Comm pass on DSS-34 (duration 1:00) 1d 14:59 6:00 AM Sun 13-Sep
2026:256:10:02:25ER Obsid: 41147 (8 ksec) Purpose: Perigee Attitude 1d 15:02 6:02 AM Sun 13-Sep
2026:256:12:24:05Maneuver to 219.00000 -26.60000 244.086 [2026:256:13:00:13] 1d 17:24 8:24 AM Sun 13-Sep
2026:256:13:04:43ER Obsid: 41146 (3 ksec) Purpose: Perigee Attitude 1d 18:04 9:04 AM Sun 13-Sep
2026:256:16:59:22Maneuver to 340.83200 -9.50000 298.238 [2026:256:17:35:30] 1d 21:5912:59 PM Sun 13-Sep
2026:256:17:40:00ER Obsid: 41145 (0 ksec) Purpose: Perigee Attitude 1d 22:39 1:40 PM Sun 13-Sep
2026:256:17:55:41Maneuver to 346.20000 3.64900 215.176 [2026:256:18:25:25] 1d 22:55 1:55 PM Sun 13-Sep
2026:256:18:29:55ER Obsid: 41144 (0 ksec) Purpose: Perigee Attitude 1d 23:29 2:29 PM Sun 13-Sep
2026:256:20:24:51Maneuver to 182.55511 56.65287 346.232 [2026:256:21:02:22] 2d 01:24 4:24 PM Sun 13-Sep
2026:256:20:25:26Grating: NONE 2d 01:25 4:25 PM Sun 13-Sep
2026:256:20:44:34RADMON Enable 2d 01:44 4:44 PM Sun 13-Sep
2026:256:21:06:52Obsid: 32931 SI: ACIS-S (10 ksec) Target: WISEA J121024.5 2d 02:06 5:06 PM Sun 13-Sep
2026:256:22:05:00Comm pass on DSS-56 (duration 1:00) 2d 03:04 6:05 PM Sun 13-Sep
2026:256:23:53:32Maneuver to 66.00000 28.00000 100.681 [2026:257:00:22:39] 2d 04:53 7:53 PM Sun 13-Sep
2026:257:00:22:39ER Obsid: 41143 (0 ksec) Purpose: Intermediate Attitud 2d 05:22 8:22 PM Sun 13-Sep
2026:257:00:23:00Maneuver to 16.94661 -17.52856 63.000 [2026:257:00:51:09] 2d 05:22 8:23 PM Sun 13-Sep
2026:257:01:02:25Obsid: 32925 SI: HRC-I (4 ksec) Target: VV 114 2d 06:02 9:02 PM Sun 13-Sep
2026:257:02:06:19Load SEP1426A:CL257:0201 [2026:258:12:57:07] 2d 07:0610:06 PM Sun 13-Sep
2026:257:02:06:19Load SEP1426A:CL257:0201 [2026:258:12:57:07] 2d 07:0610:06 PM Sun 13-Sep
2026:257:02:09:19Maneuver to 134.88138 -43.54770 127.019 [2026:257:02:42:05] 2d 07:0910:09 PM Sun 13-Sep
2026:257:02:46:35Obsid: 29742 SI: ACIS-I (8 ksec) Target: [CTC2021] Vela 2d 07:4610:46 PM Sun 13-Sep
2026:257:03:00:00Comm pass on DSS-23 (duration 1:00) 2d 07:5911:00 PM Sun 13-Sep
2026:257:05:08:15Maneuver to 1.60340 -13.44058 44.997 [2026:257:05:43:36] 2d 10:08 1:08 AM Mon 14-Sep
2026:257:05:48:06Obsid: 31130 SI: ACIS-S (10 ksec) Target: SN 2021ocs 2d 10:48 1:48 AM Mon 14-Sep
2026:257:08:34:46Maneuver to 134.88328 -43.54532 134.603 [2026:257:09:10:00] 2d 13:34 4:34 AM Mon 14-Sep
2026:257:09:14:30Obsid: 33220 SI: ACIS-I (11 ksec) Target: [CTC2021] Vela 2d 14:14 5:14 AM Mon 14-Sep
2026:257:10:00:00Comm pass on DSS-54 (duration 1:00) 2d 14:59 6:00 AM Mon 14-Sep
2026:257:12:17:50Maneuver to 1.60265 -13.44128 44.084 [2026:257:12:53:04] 2d 17:17 8:17 AM Mon 14-Sep
2026:257:12:57:34Obsid: 33230 SI: ACIS-S (10 ksec) Target: SN 2021ocs 2d 17:57 8:57 AM Mon 14-Sep
2026:257:15:44:14Maneuver to 134.88448 -43.54578 134.272 [2026:257:16:19:28] 2d 20:4411:44 AM Mon 14-Sep
2026:257:16:23:58Obsid: 33221 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela 2d 21:2312:23 PM Mon 14-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield535417250
HRC MCP382430
P4GM---0.05300
P41GM---0.018.47
CXO: from snapshot at 2026:254:18:58:30 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:20   P4GM: - 0:20   P41GM: - 0:17
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux27.75000012000> 30
2hr avg flux28.15000012000> 30
Orbital fluence1.0x106---2.0x109---
ACE data from 2026:254:18:40:00 (- 0:20)
Orbital fluence: integrated attenuated ACE flux
Grating attenuation not factored into current or 2hr flux numbers
RADMON and SOT alert limits information

ACE particle rates ( MTA SWPC )

GOES particle rates

GOES proxy for HRC shield rates

3-day Solar-Geophysical Forecast
Geophysical ActivityGeophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 470 km/s at 10/1638Z. Total IMF reached 6 nT at 10/0100Z. The maximum southward component of Bz reached 4 nT at 10-2044Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3077 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (11 Sep, 12 Sep, 13 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 7 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be low with a slight chance for an M-class flare on day one (11 Sep) and expected to be very low with a chance for a C-class flares and a slight chance for an M-class flare on days two and three (12 Sep, 13 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor