Page content updated: 2026:145:09:54:00 ( 5:54 AM Mon 25-May )

Key Snapshot and SOH Values (Δt = - 7:59)
Obsid30269
Format2_NORM
RadMonENAB
CPE StatusNORM
RA149.824
Dec2.075
Roll249.245
Pitch87.51
Sim Z92903
Sim Focus-535
HETG angle77.59
LETG angle76.09
SCS 107INAC
SCS 128ACT
SCS 129INAC
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132INAC
SCS 133ACT
Snapshot from 2026:145:01:55:00 (Δt = - 7:59)

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)
2026:144:22:27:07Obsid: 29759 SI: ACIS-S (2 ksec) Target: 1eRASS J112950. -11:26 6:27 PM Sun 24-May
2026:144:23:03:47Maneuver to 149.81969 2.07495 249.245 [2026:144:23:23:36]-10:50 7:03 PM Sun 24-May
2026:144:23:29:04Obsid: 30269 SI: ACIS-I (27 ksec) Target: Center of COSMO -10:24 7:29 PM Sun 24-May
2026:145:01:00:00Comm pass on DSS-65 (duration 1:00)- 8:54 9:00 PM Sun 24-May
2026:145:07:09:52Maneuver to 239.00000 -21.00000 271.870 [2026:145:07:40:52]- 2:44 3:09 AM Mon 25-May
2026:145:07:13:26Grating: HETG- 2:40 3:13 AM Mon 25-May
2026:145:07:15:52RADMON Disable- 2:38 3:15 AM Mon 25-May
2026:145:07:45:22ER Obsid: 41465 (3 ksec) Purpose: Perigee Attitude - 2:08 3:45 AM Mon 25-May
2026:145:09:54:00--------------- NOW --------------- 0:00 5:54 AM Mon 25-May
2026:145:10:15:33Maneuver to 104.00000 -4.00000 237.126 [2026:145:10:55:30] 0:21 6:15 AM Mon 25-May
2026:145:10:50:00Comm pass on DSS-26 (duration 1:00) 0:56 6:50 AM Mon 25-May
2026:145:11:00:00ER Obsid: 41464 (3 ksec) Purpose: Perigee Attitude 1:06 7:00 AM Mon 25-May
2026:145:13:23:01Maneuver to 205.00000 -35.00000 283.482 [2026:145:13:55:30] 3:29 9:23 AM Mon 25-May
2026:145:14:00:00ER Obsid: 41463 (3 ksec) Purpose: Perigee Attitude 4:0610:00 AM Mon 25-May
2026:145:15:03:01Maneuver to 104.00000 -4.00000 236.998 [2026:145:15:35:30] 5:0911:03 AM Mon 25-May
2026:145:15:40:00ER Obsid: 41462 (1 ksec) Purpose: Perigee Attitude 5:4611:40 AM Mon 25-May
2026:145:16:25:00Comm pass on DSS-56 (duration 1:00) 6:3112:25 PM Mon 25-May
2026:145:16:42:38Maneuver to 13.90000 6.30000 112.409 [2026:145:17:25:30] 6:4812:42 PM Mon 25-May
2026:145:17:30:00ER Obsid: 41461 (1 ksec) Purpose: Perigee Attitude 7:36 1:30 PM Mon 25-May
2026:145:17:58:42Maneuver to 267.19329 -27.19237 80.141 [2026:145:18:33:38] 8:04 1:58 PM Mon 25-May
2026:145:17:59:16Grating: NONE 8:05 1:59 PM Mon 25-May
2026:145:18:19:51RADMON Enable 8:25 2:19 PM Mon 25-May
2026:145:18:38:08Obsid: 30131 SI: ACIS-S (15 ksec) Target: SNR G1.9+0.3 8:44 2:38 PM Mon 25-May
2026:145:22:48:08Maneuver to 15.94551 -72.00008 136.865 [2026:145:23:16:51] 12:54 6:48 PM Mon 25-May
2026:145:23:21:21Obsid: 31374 SI: ACIS-S (22 ksec) Target: E0102-72.3 13:27 7:21 PM Mon 25-May
2026:146:00:00:00Comm pass on DSS-54 (duration 1:00) 14:06 8:00 PM Mon 25-May
2026:146:05:28:01Maneuver to 267.19310 -27.19218 79.884 [2026:146:05:56:41] 19:34 1:28 AM Tue 26-May
2026:146:06:01:11Obsid: 32360 SI: ACIS-S (13 ksec) Target: SNR G1.9+0.3 20:07 2:01 AM Tue 26-May
2026:146:09:34:51Load MAY2526A:CL146:0903 [2026:147:20:30:14] 23:40 5:34 AM Tue 26-May
2026:146:09:34:51Load MAY2526A:CL146:0903 [2026:147:20:30:14] 23:40 5:34 AM Tue 26-May
2026:146:09:37:51Maneuver to 15.94045 -71.99875 136.446 [2026:146:10:06:34] 23:43 5:37 AM Tue 26-May
2026:146:10:00:00Comm pass on DSS-24 (duration 1:00) 1d 00:06 6:00 AM Tue 26-May
2026:146:10:11:04Obsid: 31375 SI: ACIS-S (19 ksec) Target: E0102-72.3 1d 00:17 6:11 AM Tue 26-May
2026:146:15:40:43Maneuver to 202.11125 -31.57660 275.781 [2026:146:16:11:19] 1d 05:4611:40 AM Tue 26-May
2026:146:16:15:49Obsid: 30417 SI: ACIS-I (10 ksec) Target: Abell 3558 SE 1d 06:2112:15 PM Tue 26-May
2026:146:19:02:29Maneuver to 199.09681 29.11693 225.439 [2026:146:19:30:40] 1d 09:08 3:02 PM Tue 26-May
2026:146:19:06:04Grating: LETG 1d 09:12 3:06 PM Tue 26-May
2026:146:19:35:00Comm pass on DSS-56 (duration 2:30) 1d 09:41 3:35 PM Tue 26-May
2026:146:19:46:53Obsid: 32347 SI: HRC-S (7 ksec) Target: HZ 43 1d 09:52 3:46 PM Tue 26-May
2026:146:21:59:45Maneuver to 202.11181 -31.57727 275.543 [2026:146:22:27:54] 1d 12:05 5:59 PM Tue 26-May
2026:146:22:00:35Grating: NONE 1d 12:06 6:00 PM Tue 26-May
2026:146:22:32:24Obsid: 32364 SI: ACIS-I (10 ksec) Target: Abell 3558 SE 1d 12:38 6:32 PM Tue 26-May
2026:147:01:00:00Comm pass on DSS-54 (duration 1:00) 1d 15:06 9:00 PM Tue 26-May
2026:147:01:19:04Maneuver to 134.98738 -43.90248 242.208 [2026:147:01:42:05] 1d 15:25 9:19 PM Tue 26-May
2026:147:01:46:35Obsid: 30097 SI: ACIS-I (29 ksec) Target: [MWE2019] 1-435 1d 15:52 9:46 PM Tue 26-May
2026:147:09:49:55Maneuver to 258.24124 64.05989 166.641 [2026:147:10:32:45] 1d 23:55 5:49 AM Wed 27-May
2026:147:10:37:15Obsid: 30430 SI: ACIS-I (10 ksec) Target: Abell 2255 2d 00:43 6:37 AM Wed 27-May
2026:147:11:00:00Comm pass on DSS-26 (duration 0:45) 2d 01:06 7:00 AM Wed 27-May
2026:147:13:23:55Maneuver to 238.95194 11.19244 188.805 [2026:147:13:47:12] 2d 03:29 9:23 AM Wed 27-May
2026:147:13:51:42Obsid: 30437 SI: ACIS-I (30 ksec) Target: PG 1553+113 2d 03:57 9:51 AM Wed 27-May
2026:147:17:45:00Comm pass on DSS-36 (duration 1:00) 2d 07:51 1:45 PM Wed 27-May
2026:147:22:24:31Load MAY2526A:CL147:2203 [2026:149:08:16:37] 2d 12:30 6:24 PM Wed 27-May
2026:147:22:24:31Load MAY2526A:CL147:2203 [2026:149:08:16:37] 2d 12:30 6:24 PM Wed 27-May
2026:147:22:27:31Maneuver to 240.20000 11.85000 187.161 [2026:147:22:35:59] 2d 12:33 6:27 PM Wed 27-May
2026:147:22:31:05Grating: HETG 2d 12:37 6:31 PM Wed 27-May
2026:147:22:33:31RADMON Disable 2d 12:39 6:33 PM Wed 27-May
2026:147:22:40:29ER Obsid: 41460 (3 ksec) Purpose: Perigee Attitude 2d 12:46 6:40 PM Wed 27-May
2026:148:00:20:29Maneuver to 13.00000 47.00000 76.483 [2026:148:00:55:30] 2d 14:26 8:20 PM Wed 27-May
2026:148:01:00:00ER Obsid: 41459 (3 ksec) Purpose: Perigee Attitude 2d 15:06 9:00 PM Wed 27-May
2026:148:01:30:00Comm pass on DSS-54 (duration 1:00) 2d 15:36 9:30 PM Wed 27-May
2026:148:02:16:22Maneuver to 249.10000 -18.50000 125.088 [2026:148:02:55:30] 2d 16:2210:16 PM Wed 27-May
2026:148:03:00:00ER Obsid: 41458 (2 ksec) Purpose: Perigee Attitude 2d 17:0611:00 PM Wed 27-May
2026:148:03:54:32Maneuver to 242.00000 -23.00000 302.343 [2026:148:04:45:30] 2d 18:0011:54 PM Wed 27-May
2026:148:04:50:00ER Obsid: 41457 (1 ksec) Purpose: Perigee Attitude 2d 18:5612:50 AM Thu 28-May
2026:148:05:21:41Maneuver to 135.40000 -8.60000 245.150 [2026:148:05:55:30] 2d 19:27 1:21 AM Thu 28-May
2026:148:06:00:00ER Obsid: 41456 (3 ksec) Purpose: Perigee Attitude 2d 20:06 2:00 AM Thu 28-May
2026:148:07:37:50Maneuver to 105.00000 -6.00000 233.960 [2026:148:07:55:30] 2d 21:43 3:37 AM Thu 28-May
2026:148:08:00:00ER Obsid: 41455 (3 ksec) Purpose: Perigee Attitude 2d 22:06 4:00 AM Thu 28-May

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP535430
P4GM---0.04300
P41GM---0.018.47
CXO: from snapshot at 2026:145:01:55:00 (- 7:59)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:19   P41GM: - 0:16
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux12.65000012000> 30
2hr avg flux11.15000012000> 30
Orbital fluence2.1x106---2.0x109---
ACE data from 2026:145:09:40:00 (- 0:14)
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 23/2100Z to 24/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 357 km/s at 24/1615Z. Total IMF reached 6 nT at 24/1631Z. The maximum southward component of Bz reached -4 nT at 24/2007Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 5512 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (25 May) and quiet to unsettled levels on days two and three (26 May, 27 May).
Solar ActivityAnalysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 6 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (25 May, 26 May, 27 May).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor