Page content updated: 2026:108:03:36:00 ( 11:36 PM Fri 17-Apr )

Key Snapshot and SOH Values (from current comm)
Obsid32297
Format2_NORM
RadMonENAB
CPE StatusNORM
RA189.386
Dec8.887
Roll220.230
Pitch154.36
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 2026:108:03:34:43 (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)
2026:107:17:40:00Load APR1326A:CL107:1702 [2026:109:03:05:02]- 9:56 1:40 PM Fri 17-Apr
2026:107:17:40:00Load APR1326A:CL107:1702 [2026:109:03:05:02]- 9:56 1:40 PM Fri 17-Apr
2026:107:18:07:29Maneuver to 150.03387 2.28173 255.815 [2026:107:18:47:52]- 9:28 2:07 PM Fri 17-Apr
2026:107:18:52:22Obsid: 30250 SI: ACIS-I (30 ksec) Target: Center of COSMO - 8:43 2:52 PM Fri 17-Apr
2026:108:00:05:00Comm pass on DSS-65 (duration 0:55)- 3:31 8:05 PM Fri 17-Apr
2026:108:03:05:00Comm pass on DSS-56 (duration 1:00)- 0:3111:05 PM Fri 17-Apr
2026:108:03:12:22Maneuver to 189.38337 8.88809 220.230 [2026:108:03:34:33]- 0:2311:12 PM Fri 17-Apr
2026:108:03:36:00--------------- NOW --------------- 0:0011:36 PM Fri 17-Apr
2026:108:03:39:03Obsid: 32297 SI: ACIS-S (10 ksec) Target: SDSS J123733.69 0:0311:39 PM Fri 17-Apr
2026:108:06:39:34Maneuver to 191.08358 -22.19474 306.503 [2026:108:07:10:40] 3:03 2:39 AM Sat 18-Apr
2026:108:06:43:08Grating: HETG 3:07 2:43 AM Sat 18-Apr
2026:108:06:45:11RADMON Disable 3:09 2:45 AM Sat 18-Apr
2026:108:07:15:10ER Obsid: 41543 (3 ksec) Purpose: Perigee Attitude 3:39 3:15 AM Sat 18-Apr
2026:108:11:44:45Maneuver to 75.60650 -49.72679 230.850 [2026:108:12:15:30] 8:08 7:44 AM Sat 18-Apr
2026:108:12:20:00ER Obsid: 41542 (3 ksec) Purpose: Perigee Attitude 8:44 8:20 AM Sat 18-Apr
2026:108:16:09:39Maneuver to 206.11000 -22.97649 359.219 [2026:108:16:42:14] 12:3312:09 PM Sat 18-Apr
2026:108:16:10:14Grating: NONE 12:3412:10 PM Sat 18-Apr
2026:108:16:33:10RADMON Enable 12:5712:33 PM Sat 18-Apr
2026:108:16:46:44Obsid: 32305 SI: ACIS-S (11 ksec) Target: LEDA 184063 13:1012:46 PM Sat 18-Apr
2026:108:19:54:14Maneuver to 66.68719 -42.06974 221.012 [2026:108:20:29:04] 16:18 3:54 PM Sat 18-Apr
2026:108:20:33:34Obsid: 32296 SI: ACIS-S (10 ksec) Target: AM0425-421 16:57 4:33 PM Sat 18-Apr
2026:108:20:45:00Comm pass on DSS-65 (duration 1:00) 17:09 4:45 PM Sat 18-Apr
2026:108:23:20:14Maneuver to 149.98814 2.15709 255.631 [2026:108:23:50:27] 19:44 7:20 PM Sat 18-Apr
2026:108:23:54:57Obsid: 30259 SI: ACIS-I (27 ksec) Target: Center of COSMO 20:18 7:54 PM Sat 18-Apr
2026:109:01:35:00Comm pass on DSS-65 (duration 1:00) 21:59 9:35 PM Sat 18-Apr
2026:109:05:43:53Load APR1326A:CL109:0502 [2026:110:01:32:52] 1d 02:07 1:43 AM Sun 19-Apr
2026:109:05:43:53Load APR1326A:CL109:0502 [2026:110:01:32:52] 1d 02:07 1:43 AM Sun 19-Apr
2026:109:07:29:57Maneuver to 193.70938 -10.22767 265.185 [2026:109:07:51:07] 1d 03:53 3:29 AM Sun 19-Apr
2026:109:08:12:22Obsid: 32299 SI: HRC-I (7 ksec) Target: SN 2012au 1d 04:36 4:12 AM Sun 19-Apr
2026:109:10:17:22Maneuver to 150.11366 2.11043 255.547 [2026:109:10:38:31] 1d 06:41 6:17 AM Sun 19-Apr
2026:109:10:43:01Obsid: 30257 SI: ACIS-I (28 ksec) Target: Center of COSMO 1d 07:07 6:43 AM Sun 19-Apr
2026:109:11:15:00Comm pass on DSS-24 (duration 1:00) 1d 07:39 7:15 AM Sun 19-Apr
2026:109:18:33:01Maneuver to 106.10142 42.26159 259.004 [2026:109:18:56:54] 1d 14:57 2:33 PM Sun 19-Apr
2026:109:19:01:24Obsid: 32292 SI: ACIS-S (10 ksec) Target: 2MASX J07042579 1d 15:25 3:01 PM Sun 19-Apr
2026:109:21:48:04Maneuver to 189.38290 8.88722 222.108 [2026:109:22:16:42] 1d 18:12 5:48 PM Sun 19-Apr
2026:109:21:50:00Comm pass on DSS-56 (duration 1:00) 1d 18:14 5:50 PM Sun 19-Apr
2026:109:22:21:12Obsid: 32298 SI: ACIS-S (11 ksec) Target: SDSS J123733.69 1d 18:45 6:21 PM Sun 19-Apr
2026:110:01:29:52Load APR2026A:CL110:0101 [2026:111:13:13:04] 1d 21:53 9:29 PM Sun 19-Apr
2026:110:01:29:52Load APR2026A:CL110:0101 [2026:111:13:13:04] 1d 21:53 9:29 PM Sun 19-Apr
2026:110:01:32:52Maneuver to 219.39482 71.84575 168.377 [2026:110:01:59:47] 1d 21:56 9:32 PM Sun 19-Apr
2026:110:02:04:17Obsid: 32306 SI: ACIS-S (5 ksec) Target: GRB260310A 1d 22:2810:04 PM Sun 19-Apr
2026:110:03:00:00Comm pass on DSS-65 (duration 1:00) 1d 23:2411:00 PM Sun 19-Apr
2026:110:03:27:37Maneuver to 290.30905 43.99487 103.246 [2026:110:03:48:10] 1d 23:5111:27 PM Sun 19-Apr
2026:110:03:54:54Obsid: 31419 SI: ACIS-I (20 ksec) Target: Abell 2319 2d 00:1811:54 PM Sun 19-Apr
2026:110:09:28:14Maneuver to 213.85511 4.94289 160.216 [2026:110:09:56:44] 2d 05:52 5:28 AM Mon 20-Apr
2026:110:10:01:14Obsid: 29878 SI: ACIS-S (15 ksec) Target: SDSS J141525.26 2d 06:25 6:01 AM Mon 20-Apr
2026:110:11:05:00Comm pass on DSS-26 (duration 1:00) 2d 07:29 7:05 AM Mon 20-Apr
2026:110:14:26:45Maneuver to 139.88060 48.27195 246.062 [2026:110:14:57:02] 2d 10:5010:26 AM Mon 20-Apr
2026:110:15:01:32Obsid: 29880 SI: ACIS-S (23 ksec) Target: SDSS J091934.51 2d 11:2511:01 AM Mon 20-Apr
2026:110:19:25:00Comm pass on DSS-34 (duration 0:20) 2d 15:49 3:25 PM Mon 20-Apr
2026:110:21:24:52Maneuver to 207.57400 -7.43400 190.642 [2026:110:21:54:38] 2d 17:48 5:24 PM Mon 20-Apr
2026:110:21:28:26Grating: HETG 2d 17:52 5:28 PM Mon 20-Apr
2026:110:21:30:29RADMON Disable 2d 17:54 5:30 PM Mon 20-Apr
2026:110:21:59:08ER Obsid: 41541 (3 ksec) Purpose: Perigee Attitude 2d 18:23 5:59 PM Mon 20-Apr
2026:110:22:49:08Maneuver to 219.56027 -14.56958 76.247 [2026:110:23:26:10] 2d 19:13 6:49 PM Mon 20-Apr
2026:110:23:30:40ER Obsid: 41540 (3 ksec) Purpose: Perigee Attitude 2d 19:54 7:30 PM Mon 20-Apr
2026:111:02:19:11Maneuver to 337.66100 -10.10000 112.073 [2026:111:02:55:30] 2d 22:4310:19 PM Mon 20-Apr
2026:111:03:00:00ER Obsid: 41539 (3 ksec) Purpose: Perigee Attitude 2d 23:2411:00 PM Mon 20-Apr

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP535430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:108:03:34:43 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:16   P4GM: - 0:18   P41GM: - 0:16
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux78.65000012000> 30
2hr avg flux43.15000012000> 30
Orbital fluence2.4x106---2.0x109---
ACE data from 2026:108:03:25:00 (- 0:11)
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 16/2100Z to 17/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 365 km/s at 17/0316Z. Total IMF reached 11 nT at 17/1729Z. The maximum southward component of Bz reached -3 nT at 17/1744Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2441 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to major storm levels on day one (18 Apr), unsettled to minor storm levels on day two (19 Apr) and quiet to active levels on day three (20 Apr).
Solar ActivityAnalysis of Solar Active Regions and Activity from 16/2100Z to 17/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 3 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 (18 Apr, 19 Apr, 20 Apr).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor