Page content updated: 2026:108:19:34:01 ( 3:34 PM Sat 18-Apr )

Key Snapshot and SOH Values (Δt = -15:32)
Obsid32297
Format2_NORM
RadMonENAB
CPE StatusNORM
RA189.390
Dec8.887
Roll220.229
Pitch154.38
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 2026:108:04:01:30 (Δt = -15:32)

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)
2026:108:11:44:45Maneuver to 75.60650 -49.72679 230.850 [2026:108:12:15:30]- 7:49 7:44 AM Sat 18-Apr
2026:108:12:20:00ER Obsid: 41542 (3 ksec) Purpose: Perigee Attitude - 7:14 8:20 AM Sat 18-Apr
2026:108:16:09:39Maneuver to 206.11000 -22.97649 359.219 [2026:108:16:42:14]- 3:2412:09 PM Sat 18-Apr
2026:108:16:10:14Grating: NONE- 3:2312:10 PM Sat 18-Apr
2026:108:16:33:10RADMON Enable- 3:0012:33 PM Sat 18-Apr
2026:108:16:46:44Obsid: 32305 SI: ACIS-S (11 ksec) Target: LEDA 184063 - 2:4712:46 PM Sat 18-Apr
2026:108:19:34:01--------------- NOW --------------- 0:00 3:34 PM Sat 18-Apr
2026:108:19:54:14Maneuver to 66.68719 -42.06974 221.012 [2026:108:20:29:04] 0:20 3:54 PM Sat 18-Apr
2026:108:20:33:34Obsid: 32296 SI: ACIS-S (10 ksec) Target: AM0425-421 0:59 4:33 PM Sat 18-Apr
2026:108:20:45:00Comm pass on DSS-65 (duration 1:00) 1:10 4:45 PM Sat 18-Apr
2026:108:23:20:14Maneuver to 149.98814 2.15709 255.631 [2026:108:23:50:27] 3:46 7:20 PM Sat 18-Apr
2026:108:23:54:57Obsid: 30259 SI: ACIS-I (27 ksec) Target: Center of COSMO 4:20 7:54 PM Sat 18-Apr
2026:109:01:35:00Comm pass on DSS-65 (duration 1:00) 6:00 9:35 PM Sat 18-Apr
2026:109:05:43:53Load APR1326A:CL109:0502 [2026:110:01:32:52] 10:09 1:43 AM Sun 19-Apr
2026:109:05:43:53Load APR1326A:CL109:0502 [2026:110:01:32:52] 10:09 1:43 AM Sun 19-Apr
2026:109:07:29:57Maneuver to 193.70938 -10.22767 265.185 [2026:109:07:51:07] 11:55 3:29 AM Sun 19-Apr
2026:109:08:12:22Obsid: 32299 SI: HRC-I (7 ksec) Target: SN 2012au 12:38 4:12 AM Sun 19-Apr
2026:109:10:17:22Maneuver to 150.11366 2.11043 255.547 [2026:109:10:38:31] 14:43 6:17 AM Sun 19-Apr
2026:109:10:43:01Obsid: 30257 SI: ACIS-I (28 ksec) Target: Center of COSMO 15:09 6:43 AM Sun 19-Apr
2026:109:11:15:00Comm pass on DSS-24 (duration 1:00) 15:40 7:15 AM Sun 19-Apr
2026:109:18:33:01Maneuver to 106.10142 42.26159 259.004 [2026:109:18:56:54] 22:59 2:33 PM Sun 19-Apr
2026:109:19:01:24Obsid: 32292 SI: ACIS-S (10 ksec) Target: 2MASX J07042579 23:27 3:01 PM Sun 19-Apr
2026:109:21:48:04Maneuver to 189.38290 8.88722 222.108 [2026:109:22:16:42] 1d 02:14 5:48 PM Sun 19-Apr
2026:109:21:50:00Comm pass on DSS-56 (duration 1:00) 1d 02:15 5:50 PM Sun 19-Apr
2026:109:22:21:12Obsid: 32298 SI: ACIS-S (11 ksec) Target: SDSS J123733.69 1d 02:47 6:21 PM Sun 19-Apr
2026:110:01:29:52Load APR2026A:CL110:0101 [2026:111:13:13:04] 1d 05:55 9:29 PM Sun 19-Apr
2026:110:01:29:52Load APR2026A:CL110:0101 [2026:111:13:13:04] 1d 05:55 9:29 PM Sun 19-Apr
2026:110:01:32:52Maneuver to 219.39482 71.84575 168.377 [2026:110:01:59:47] 1d 05:58 9:32 PM Sun 19-Apr
2026:110:02:04:17Obsid: 32306 SI: ACIS-S (5 ksec) Target: GRB260310A 1d 06:3010:04 PM Sun 19-Apr
2026:110:03:00:00Comm pass on DSS-65 (duration 1:00) 1d 07:2511:00 PM Sun 19-Apr
2026:110:03:27:37Maneuver to 290.30905 43.99487 103.246 [2026:110:03:48:10] 1d 07:5311:27 PM Sun 19-Apr
2026:110:03:54:54Obsid: 31419 SI: ACIS-I (20 ksec) Target: Abell 2319 1d 08:2011:54 PM Sun 19-Apr
2026:110:09:28:14Maneuver to 213.85511 4.94289 160.216 [2026:110:09:56:44] 1d 13:54 5:28 AM Mon 20-Apr
2026:110:10:01:14Obsid: 29878 SI: ACIS-S (15 ksec) Target: SDSS J141525.26 1d 14:27 6:01 AM Mon 20-Apr
2026:110:11:05:00Comm pass on DSS-26 (duration 1:00) 1d 15:30 7:05 AM Mon 20-Apr
2026:110:14:26:45Maneuver to 139.88060 48.27195 246.062 [2026:110:14:57:02] 1d 18:5210:26 AM Mon 20-Apr
2026:110:15:01:32Obsid: 29880 SI: ACIS-S (23 ksec) Target: SDSS J091934.51 1d 19:2711:01 AM Mon 20-Apr
2026:110:19:25:00Comm pass on DSS-34 (duration 0:20) 1d 23:50 3:25 PM Mon 20-Apr
2026:110:21:24:52Maneuver to 207.57400 -7.43400 190.642 [2026:110:21:54:38] 2d 01:50 5:24 PM Mon 20-Apr
2026:110:21:28:26Grating: HETG 2d 01:54 5:28 PM Mon 20-Apr
2026:110:21:30:29RADMON Disable 2d 01:56 5:30 PM Mon 20-Apr
2026:110:21:59:08ER Obsid: 41541 (3 ksec) Purpose: Perigee Attitude 2d 02:25 5:59 PM Mon 20-Apr
2026:110:22:49:08Maneuver to 219.56027 -14.56958 76.247 [2026:110:23:26:10] 2d 03:15 6:49 PM Mon 20-Apr
2026:110:23:30:40ER Obsid: 41540 (3 ksec) Purpose: Perigee Attitude 2d 03:56 7:30 PM Mon 20-Apr
2026:111:02:19:11Maneuver to 337.66100 -10.10000 112.073 [2026:111:02:55:30] 2d 06:4510:19 PM Mon 20-Apr
2026:111:03:00:00ER Obsid: 41539 (3 ksec) Purpose: Perigee Attitude 2d 07:2511:00 PM Mon 20-Apr
2026:111:05:33:26Maneuver to 216.33000 -13.47000 77.864 [2026:111:06:10:30] 2d 09:59 1:33 AM Tue 21-Apr
2026:111:06:15:00ER Obsid: 41538 (0 ksec) Purpose: Perigee Attitude 2d 10:40 2:15 AM Tue 21-Apr
2026:111:06:30:41Maneuver to 201.93800 -13.50800 284.128 [2026:111:07:15:08] 2d 10:56 2:30 AM Tue 21-Apr
2026:111:07:19:38ER Obsid: 41537 (0 ksec) Purpose: Perigee Attitude 2d 11:45 3:19 AM Tue 21-Apr
2026:111:07:51:48Maneuver to 88.04566 -7.42950 252.412 [2026:111:08:27:30] 2d 12:17 3:51 AM Tue 21-Apr
2026:111:08:18:28RADMON Enable 2d 12:44 4:18 AM Tue 21-Apr
2026:111:08:32:00Obsid: 31864 SI: ACIS-S (14 ksec) Target: NGC 2110 2d 12:57 4:32 AM Tue 21-Apr
2026:111:09:50:00Comm pass on DSS-26 (duration 1:30) 2d 14:15 5:50 AM Tue 21-Apr
2026:111:12:25:20Maneuver to 196.04494 -5.54922 258.999 [2026:111:13:00:12] 2d 16:51 8:25 AM Tue 21-Apr
2026:111:12:28:54Grating: NONE 2d 16:54 8:28 AM Tue 21-Apr
2026:111:13:04:42Obsid: 30180 SI: ACIS-S (12 ksec) Target: NGC4941 2d 17:30 9:04 AM Tue 21-Apr
2026:111:16:21:42Load APR2026A:CL111:1601 [2026:113:03:00:01] 2d 20:4712:21 PM Tue 21-Apr
2026:111:16:21:42Load APR2026A:CL111:1601 [2026:113:03:00:01] 2d 20:4712:21 PM Tue 21-Apr
2026:111:16:24:42Maneuver to 90.96268 -35.95111 240.987 [2026:111:16:58:33] 2d 20:5012:24 PM Tue 21-Apr
2026:111:17:03:03Obsid: 30026 SI: ACIS-I (20 ksec) Target: DESI J090.9854- 2d 21:29 1:03 PM Tue 21-Apr

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP484430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:108:04:01:30 (-15:32)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:19   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux4615000012000> 30
2hr avg flux3255000012000> 30
Orbital fluence3.3x106---2.0x109---
ACE data from 2026:108:19:20:00 (- 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 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