Page content updated: 2026:266:13:54:01 ( 9:54 AM Wed 23-Sep )

Key Snapshot and SOH Values (Δt = - 2:34)
Obsid31345
Format2_NORM
RadMonENAB
CPE StatusNORM
RA274.830
Dec-25.379
Roll269.996
Pitch94.01
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:266:11:19:20 (Δt = - 2:34)

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)
2026:266:01:59:02Obsid: 31744 SI: ACIS-S (15 ksec) Target: ACT-CL J0123.5- -11:54 9:59 PM Tue 22-Sep
2026:266:02:20:00Comm pass on DSS-24 (duration 1:00)-11:3410:20 PM Tue 22-Sep
2026:266:06:09:02Maneuver to 168.02254 -60.63271 162.037 [2026:266:06:45:22]- 7:44 2:09 AM Wed 23-Sep
2026:266:06:51:27Obsid: 31143 SI: HRC-I (12 ksec) Target: msh 11-62 - 7:02 2:51 AM Wed 23-Sep
2026:266:10:13:53Maneuver to 274.82973 -25.38297 269.996 [2026:266:10:42:13]- 3:40 6:13 AM Wed 23-Sep
2026:266:10:20:00Comm pass on DSS-36 (duration 1:00)- 3:34 6:20 AM Wed 23-Sep
2026:266:10:46:43Obsid: 31345 SI: ACIS-S (10 ksec) Target: V4641 Sgr S1 - 3:07 6:46 AM Wed 23-Sep
2026:266:13:33:23Maneuver to 49.93596 41.55496 119.212 [2026:266:14:19:06]- 0:20 9:33 AM Wed 23-Sep
2026:266:13:54:01--------------- NOW --------------- 0:00 9:54 AM Wed 23-Sep
2026:266:14:23:36Obsid: 31415 SI: ACIS-I (10 ksec) Target: Perseus Cluster 0:2910:23 AM Wed 23-Sep
2026:266:17:10:16Maneuver to 4.65313 16.45108 164.746 [2026:266:17:32:35] 3:16 1:10 PM Wed 23-Sep
2026:266:17:37:05Obsid: 30412 SI: ACIS-I (9 ksec) Target: MACS J0018.5+16 3:43 1:37 PM Wed 23-Sep
2026:266:20:22:32Maneuver to 179.28000 61.90000 1.277 [2026:266:20:56:10] 6:28 4:22 PM Wed 23-Sep
2026:266:20:26:06Grating: HETG 6:32 4:26 PM Wed 23-Sep
2026:266:20:28:33RADMON Disable 6:34 4:28 PM Wed 23-Sep
2026:266:21:00:40ER Obsid: 41122 (6 ksec) Purpose: Perigee Attitude 7:06 5:00 PM Wed 23-Sep
2026:266:22:40:40Maneuver to 91.78193 -29.99880 90.442 [2026:266:23:18:35] 8:46 6:40 PM Wed 23-Sep
2026:266:23:23:05ER Obsid: 41121 (3 ksec) Purpose: Perigee Attitude 9:29 7:23 PM Wed 23-Sep
2026:267:00:13:05Maneuver to 5.41000 -2.99000 58.665 [2026:267:00:43:03] 10:19 8:13 PM Wed 23-Sep
2026:267:00:47:33ER Obsid: 41120 (5 ksec) Purpose: Perigee Attitude 10:53 8:47 PM Wed 23-Sep
2026:267:02:14:33Load SEP2126A:CL267:0201 [2026:268:13:00:39] 12:2010:14 PM Wed 23-Sep
2026:267:02:14:33Load SEP2126A:CL267:0201 [2026:268:13:00:39] 12:2010:14 PM Wed 23-Sep
2026:267:02:17:33Maneuver to 91.78193 -29.99880 90.327 [2026:267:02:47:32] 12:2310:17 PM Wed 23-Sep
2026:267:02:52:02ER Obsid: 41119 (3 ksec) Purpose: Perigee Attitude 12:5810:52 PM Wed 23-Sep
2026:267:05:50:00Comm pass on DSS-65 (duration 0:35) 15:55 1:50 AM Thu 24-Sep
2026:267:10:47:58Maneuver to 50.02362 41.43707 119.536 [2026:267:11:17:39] 20:53 6:47 AM Thu 24-Sep
2026:267:10:48:33Grating: NONE 20:54 6:48 AM Thu 24-Sep
2026:267:11:03:52RADMON Enable 21:09 7:03 AM Thu 24-Sep
2026:267:11:22:09Obsid: 31416 SI: ACIS-I (10 ksec) Target: Perseus Cluster 21:28 7:22 AM Thu 24-Sep
2026:267:13:45:00Comm pass on DSS-26 (duration 1:00) 23:50 9:45 AM Thu 24-Sep
2026:267:14:08:49Maneuver to 20.88941 -4.47479 67.001 [2026:267:14:37:40] 1d 00:1410:08 AM Thu 24-Sep
2026:267:14:42:10Obsid: 33446 SI: ACIS-S (13 ksec) Target: ACT-CL J0123.5- 1d 00:4810:42 AM Thu 24-Sep
2026:267:16:45:00Comm pass on DSS-56 (duration 1:00) 1d 02:5012:45 PM Thu 24-Sep
2026:267:18:27:10Maneuver to 168.01681 -60.63449 157.532 [2026:267:19:03:35] 1d 04:33 2:27 PM Thu 24-Sep
2026:267:19:09:35Obsid: 33441 SI: HRC-I (12 ksec) Target: msh 11-62 1d 05:15 3:09 PM Thu 24-Sep
2026:267:22:29:35Maneuver to 34.25371 70.59508 131.953 [2026:267:23:17:00] 1d 08:35 6:29 PM Thu 24-Sep
2026:267:23:21:30Obsid: 30522 SI: ACIS-I (26 ksec) Target: 1RXS J021649.0+ 1d 09:27 7:21 PM Thu 24-Sep
2026:268:03:00:00Comm pass on DSS-23 (duration 1:00) 1d 13:0511:00 PM Thu 24-Sep
2026:268:06:34:50Maneuver to 4.65033 16.45067 164.997 [2026:268:06:58:41] 1d 16:40 2:34 AM Fri 25-Sep
2026:268:07:03:11Obsid: 33439 SI: ACIS-I (9 ksec) Target: MACS J0018.5+16 1d 17:09 3:03 AM Fri 25-Sep
2026:268:09:45:28Maneuver to 129.34029 19.33072 67.400 [2026:268:10:22:50] 1d 19:51 5:45 AM Fri 25-Sep
2026:268:10:15:00Comm pass on DSS-65 (duration 1:00) 1d 20:20 6:15 AM Fri 25-Sep
2026:268:10:27:20Obsid: 33442 SI: ACIS-S (13 ksec) Target: SDSS J083721.87 1d 20:33 6:27 AM Fri 25-Sep
2026:268:14:04:20Load SEP2126A:CL268:1401 [2026:270:01:14:59] 2d 00:1010:04 AM Fri 25-Sep
2026:268:14:04:20Load SEP2126A:CL268:1401 [2026:270:01:14:59] 2d 00:1010:04 AM Fri 25-Sep
2026:268:14:07:20Maneuver to 4.65143 16.45085 164.996 [2026:268:14:44:41] 2d 00:1310:07 AM Fri 25-Sep
2026:268:14:49:11Obsid: 33440 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 2d 00:5510:49 AM Fri 25-Sep
2026:268:16:30:00Comm pass on DSS-54 (duration 1:00) 2d 02:3512:30 PM Fri 25-Sep
2026:268:17:42:04Maneuver to 129.34063 19.32903 68.000 [2026:268:18:19:24] 2d 03:48 1:42 PM Fri 25-Sep
2026:268:18:23:54Obsid: 33443 SI: ACIS-S (13 ksec) Target: SDSS J083721.87 2d 04:29 2:23 PM Fri 25-Sep
2026:268:22:12:14Maneuver to 11.35547 10.14471 134.681 [2026:268:22:48:27] 2d 08:18 6:12 PM Fri 25-Sep
2026:268:22:52:57Obsid: 33434 SI: ACIS-I (10 ksec) Target: RMJ004525.1+100 2d 08:58 6:52 PM Fri 25-Sep
2026:269:01:00:00Comm pass on DSS-24 (duration 1:00) 2d 11:05 9:00 PM Fri 25-Sep
2026:269:01:46:06Maneuver to 129.34074 19.32719 68.000 [2026:269:02:22:18] 2d 11:52 9:46 PM Fri 25-Sep
2026:269:02:26:48Obsid: 33444 SI: ACIS-S (13 ksec) Target: SDSS J083721.87 2d 12:3210:26 PM Fri 25-Sep
2026:269:06:03:28Maneuver to 72.39532 15.87068 94.575 [2026:269:06:26:37] 2d 16:09 2:03 AM Sat 26-Sep
2026:269:06:45:53Obsid: 31067 SI: HRC-I (5 ksec) Target: HD 30589 2d 16:51 2:45 AM Sat 26-Sep
2026:269:08:09:13Maneuver to 20.88982 -4.47720 73.217 [2026:269:08:33:42] 2d 18:15 4:09 AM Sat 26-Sep
2026:269:08:38:12Obsid: 33447 SI: ACIS-S (11 ksec) Target: ACT-CL J0123.5- 2d 18:44 4:38 AM Sat 26-Sep
2026:269:10:00:00Comm pass on DSS-34 (duration 1:00) 2d 20:05 6:00 AM Sat 26-Sep
2026:269:11:48:01Maneuver to 94.00000 -30.00000 89.552 [2026:269:12:15:23] 2d 21:54 7:48 AM Sat 26-Sep
2026:269:11:51:35Grating: HETG 2d 21:57 7:51 AM Sat 26-Sep
2026:269:11:53:38RADMON Disable 2d 21:59 7:53 AM Sat 26-Sep
2026:269:12:19:53ER Obsid: 41118 (0 ksec) Purpose: Perigee Attitude 2d 22:25 8:19 AM Sat 26-Sep
2026:269:12:35:34Maneuver to 179.28000 61.90000 3.962 [2026:269:13:13:11] 2d 22:41 8:35 AM Sat 26-Sep
2026:269:13:17:41ER Obsid: 41117 (6 ksec) Purpose: Perigee Attitude 2d 23:23 9:17 AM Sat 26-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP484430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:266:11:19:20 (- 2:34)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:16   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux12.65000012000> 30
2hr avg flux10.55000012000> 30
Orbital fluence1.5x106---2.0x109---
ACE data from 2026:266:13:35:00 (- 0:19)
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 21/2100Z to 22/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 337 km/s at 21/2239 UTC. Total field reached 4 nT at 22/0552 UTC. The maximum southward component of Bz reached -3 nT at 21/2248 UTC. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 707 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (23 Sep), quiet to minor storm levels on day two (24 Sep) and unsettled to active levels on day three (25 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 8 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 days one, two, and three (23 Sep, 24 Sep, 25 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor