Page content updated: 2026:110:08:28:00 ( 4:28 AM Mon 20-Apr )

Key Snapshot and SOH Values (Δt = - 4:32)
Obsid31419
Format2_NORM
RadMonENAB
CPE StatusNORM
RA290.310
Dec43.991
Roll103.245
Pitch87.12
Sim Z88727
Sim Focus-535
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129INAC
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132INAC
SCS 133ACT
Snapshot from 2026:110:03:55:53 (Δt = - 4:32)

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)
2026:109:21:48:04Maneuver to 189.38290 8.88722 222.108 [2026:109:22:16:42]-10:39 5:48 PM Sun 19-Apr
2026:109:21:50:00Comm pass on DSS-56 (duration 1:00)-10:38 5:50 PM Sun 19-Apr
2026:109:22:21:12Obsid: 32298 SI: ACIS-S (11 ksec) Target: SDSS J123733.69 -10:06 6:21 PM Sun 19-Apr
2026:110:01:29:52Load APR2026A:CL110:0101 [2026:111:13:13:04]- 6:58 9:29 PM Sun 19-Apr
2026:110:01:29:52Load APR2026A:CL110:0101 [2026:111:13:13:04]- 6:58 9:29 PM Sun 19-Apr
2026:110:01:32:52Maneuver to 219.39482 71.84575 168.377 [2026:110:01:59:47]- 6:55 9:32 PM Sun 19-Apr
2026:110:02:04:17Obsid: 32306 SI: ACIS-S (5 ksec) Target: GRB260310A - 6:2310:04 PM Sun 19-Apr
2026:110:03:00:00Comm pass on DSS-65 (duration 1:00)- 5:2811:00 PM Sun 19-Apr
2026:110:03:27:37Maneuver to 290.30905 43.99487 103.246 [2026:110:03:48:10]- 5:0011:27 PM Sun 19-Apr
2026:110:03:54:54Obsid: 31419 SI: ACIS-I (20 ksec) Target: Abell 2319 - 4:3311:54 PM Sun 19-Apr
2026:110:08:28:00--------------- NOW --------------- 0:00 4:28 AM Mon 20-Apr
2026:110:09:28:14Maneuver to 213.85511 4.94289 160.216 [2026:110:09:56:44] 1:00 5:28 AM Mon 20-Apr
2026:110:10:01:14Obsid: 29878 SI: ACIS-S (15 ksec) Target: SDSS J141525.26 1:33 6:01 AM Mon 20-Apr
2026:110:11:05:00Comm pass on DSS-26 (duration 1:00) 2:37 7:05 AM Mon 20-Apr
2026:110:14:26:45Maneuver to 139.88060 48.27195 246.062 [2026:110:14:57:02] 5:5810:26 AM Mon 20-Apr
2026:110:15:01:32Obsid: 29880 SI: ACIS-S (23 ksec) Target: SDSS J091934.51 6:3311:01 AM Mon 20-Apr
2026:110:19:25:00Comm pass on DSS-34 (duration 0:20) 10:57 3:25 PM Mon 20-Apr
2026:110:21:24:52Maneuver to 207.57400 -7.43400 190.642 [2026:110:21:54:38] 12:56 5:24 PM Mon 20-Apr
2026:110:21:28:26Grating: HETG 13:00 5:28 PM Mon 20-Apr
2026:110:21:30:29RADMON Disable 13:02 5:30 PM Mon 20-Apr
2026:110:21:59:08ER Obsid: 41541 (3 ksec) Purpose: Perigee Attitude 13:31 5:59 PM Mon 20-Apr
2026:110:22:49:08Maneuver to 219.56027 -14.56958 76.247 [2026:110:23:26:10] 14:21 6:49 PM Mon 20-Apr
2026:110:23:30:40ER Obsid: 41540 (3 ksec) Purpose: Perigee Attitude 15:02 7:30 PM Mon 20-Apr
2026:111:02:19:11Maneuver to 337.66100 -10.10000 112.073 [2026:111:02:55:30] 17:5110:19 PM Mon 20-Apr
2026:111:03:00:00ER Obsid: 41539 (3 ksec) Purpose: Perigee Attitude 18:3211:00 PM Mon 20-Apr
2026:111:05:33:26Maneuver to 216.33000 -13.47000 77.864 [2026:111:06:10:30] 21:05 1:33 AM Tue 21-Apr
2026:111:06:15:00ER Obsid: 41538 (0 ksec) Purpose: Perigee Attitude 21:47 2:15 AM Tue 21-Apr
2026:111:06:30:41Maneuver to 201.93800 -13.50800 284.128 [2026:111:07:15:08] 22:02 2:30 AM Tue 21-Apr
2026:111:07:19:38ER Obsid: 41537 (0 ksec) Purpose: Perigee Attitude 22:51 3:19 AM Tue 21-Apr
2026:111:07:51:48Maneuver to 88.04566 -7.42950 252.412 [2026:111:08:27:30] 23:23 3:51 AM Tue 21-Apr
2026:111:08:18:28RADMON Enable 23:50 4:18 AM Tue 21-Apr
2026:111:08:32:00Obsid: 31864 SI: ACIS-S (14 ksec) Target: NGC 2110 1d 00:04 4:32 AM Tue 21-Apr
2026:111:09:50:00Comm pass on DSS-26 (duration 1:30) 1d 01:22 5:50 AM Tue 21-Apr
2026:111:12:25:20Maneuver to 196.04494 -5.54922 258.999 [2026:111:13:00:12] 1d 03:57 8:25 AM Tue 21-Apr
2026:111:12:28:54Grating: NONE 1d 04:00 8:28 AM Tue 21-Apr
2026:111:13:04:42Obsid: 30180 SI: ACIS-S (12 ksec) Target: NGC4941 1d 04:36 9:04 AM Tue 21-Apr
2026:111:16:21:42Load APR2026A:CL111:1601 [2026:113:03:00:01] 1d 07:5312:21 PM Tue 21-Apr
2026:111:16:21:42Load APR2026A:CL111:1601 [2026:113:03:00:01] 1d 07:5312:21 PM Tue 21-Apr
2026:111:16:24:42Maneuver to 90.96268 -35.95111 240.987 [2026:111:16:58:33] 1d 07:5612:24 PM Tue 21-Apr
2026:111:17:03:03Obsid: 30026 SI: ACIS-I (20 ksec) Target: DESI J090.9854- 1d 08:35 1:03 PM Tue 21-Apr
2026:111:22:36:23Maneuver to 262.30948 -62.48889 54.988 [2026:111:23:05:29] 1d 14:08 6:36 PM Tue 21-Apr
2026:111:23:09:59Obsid: 29863 SI: ACIS-S (46 ksec) Target: AM1724-622 1d 14:41 7:09 PM Tue 21-Apr
2026:112:03:50:00Comm pass on DSS-54 (duration 1:00) 1d 19:2211:50 PM Tue 21-Apr
2026:112:10:00:00Comm pass on DSS-65 (duration 1:00) 2d 01:32 6:00 AM Wed 22-Apr
2026:112:12:06:39Maneuver to 139.88063 48.27073 247.040 [2026:112:12:54:10] 2d 03:38 8:06 AM Wed 22-Apr
2026:112:12:58:40Obsid: 32311 SI: ACIS-S (23 ksec) Target: SDSS J091934.51 2d 04:30 8:58 AM Wed 22-Apr
2026:112:19:22:00Maneuver to 213.85255 4.94247 168.036 [2026:112:19:51:37] 2d 10:54 3:22 PM Wed 22-Apr
2026:112:19:56:07Obsid: 32309 SI: ACIS-S (15 ksec) Target: SDSS J141525.26 2d 11:28 3:56 PM Wed 22-Apr
2026:112:21:50:00Comm pass on DSS-54 (duration 1:00) 2d 13:22 5:50 PM Wed 22-Apr
2026:113:00:06:07Maneuver to 326.17963 38.30464 83.756 [2026:113:00:40:42] 2d 15:38 8:06 PM Wed 22-Apr
2026:113:00:09:42Grating: HETG 2d 15:41 8:09 PM Wed 22-Apr
2026:113:00:48:32Obsid: 31516 SI: HRC-I (13 ksec) Target: Cyg X-2 2d 16:20 8:48 PM Wed 22-Apr
2026:113:03:00:00Comm pass on DSS-65 (duration 1:00) 2d 18:3211:00 PM Wed 22-Apr
2026:113:04:30:01Load APR2026A:CL113:0401 [2026:114:15:24:40] 2d 20:0212:30 AM Thu 23-Apr
2026:113:04:30:01Load APR2026A:CL113:0401 [2026:114:15:24:40] 2d 20:0212:30 AM Thu 23-Apr
2026:113:04:38:32Maneuver to 213.85396 4.94281 169.281 [2026:113:05:13:10] 2d 20:1012:38 AM Thu 23-Apr
2026:113:04:39:21Grating: NONE 2d 20:1112:39 AM Thu 23-Apr
2026:113:05:17:40Obsid: 32310 SI: ACIS-S (10 ksec) Target: SDSS J141525.26 2d 20:49 1:17 AM Thu 23-Apr
2026:113:08:04:20Maneuver to 166.14366 38.24920 228.767 [2026:113:08:30:11] 2d 23:36 4:04 AM Thu 23-Apr
2026:113:08:07:55Grating: LETG 2d 23:39 4:07 AM Thu 23-Apr

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP611930
P4GM---0.02300
P41GM---0.018.47
CXO: from snapshot at 2026:110:03:55:53 (- 4:32)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:18   P4GM: - 0:15   P41GM: - 0:20
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux1265000012000> 30
2hr avg flux1705000012000> 30
Orbital fluence4.6x107---2.0x109---
ACE data from 2026:110:08:15:00 (- 0:13)
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 18/2100Z to 19/2100Z: The geomagnetic field has been at unsettled to major storm levels for the past 24 hours. Solar wind speed reached a peak of 566 km/s at 19/0827Z. Total IMF reached 13 nT at 18/2334Z. The maximum southward component of Bz reached -7 nT at 19/0032Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1187 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (20 Apr, 21 Apr) and quiet to unsettled levels on day three (22 Apr).
Solar ActivityAnalysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (20 Apr, 21 Apr, 22 Apr).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor