Page content updated: 2026:089:06:03:00 ( 2:03 AM Mon 30-Mar )

Key Snapshot and SOH Values (Δt = - 4:05)
Obsid31127
Format2_NORM
RadMonENAB
CPE StatusNORM
RA177.706
Dec55.367
Roll180.958
Pitch120.79
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle76.09
SCS 107INAC
SCS 128ACT
SCS 129INAC
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132INAC
SCS 133ACT
Snapshot from 2026:089:01:57:50 (Δt = - 4:05)

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)
2026:088:20:45:00Comm pass on DSS-34 (duration 1:00)- 9:18 4:45 PM Sun 29-Mar
2026:088:21:37:04Load MAR3026A:CL088:2101 [2026:090:09:38:23]- 8:25 5:37 PM Sun 29-Mar
2026:088:21:37:04Load MAR3026A:CL088:2101 [2026:090:09:38:23]- 8:25 5:37 PM Sun 29-Mar
2026:088:21:40:04Maneuver to 282.69960 -31.82077 95.340 [2026:088:22:11:09]- 8:22 5:40 PM Sun 29-Mar
2026:088:21:43:38Grating: NONE- 8:19 5:43 PM Sun 29-Mar
2026:088:22:15:39Obsid: 32261 SI: ACIS-S (5 ksec) Target: CD-31 16041 - 7:47 6:15 PM Sun 29-Mar
2026:088:23:38:59Maneuver to 177.69973 55.36381 180.964 [2026:089:00:18:34]- 6:24 7:38 PM Sun 29-Mar
2026:089:00:23:04Obsid: 31127 SI: ACIS-S (10 ksec) Target: SN 2026dix - 5:39 8:23 PM Sun 29-Mar
2026:089:01:00:00Comm pass on DSS-56 (duration 1:00)- 5:03 9:00 PM Sun 29-Mar
2026:089:03:09:44Maneuver to 205.66986 19.21963 141.485 [2026:089:03:31:09]- 2:5311:09 PM Sun 29-Mar
2026:089:03:35:39Obsid: 29933 SI: ACIS-S (6 ksec) Target: SDSS J134234.31 - 2:2711:35 PM Sun 29-Mar
2026:089:05:15:46Maneuver to 252.09784 41.91205 110.982 [2026:089:05:36:55]- 0:47 1:15 AM Mon 30-Mar
2026:089:05:41:25Obsid: 29913 SI: ACIS-S (44 ksec) Target: SDSS J164818.07 - 0:21 1:41 AM Mon 30-Mar
2026:089:06:03:00--------------- NOW --------------- 0:00 2:03 AM Mon 30-Mar
2026:089:09:30:00Comm pass on DSS-26 (duration 0:30) 3:27 5:30 AM Mon 30-Mar
2026:089:11:10:00Comm pass on DSS-24 (duration 1:00) 5:07 7:10 AM Mon 30-Mar
2026:089:18:00:36Maneuver to 191.50000 -1.40000 133.636 [2026:089:18:27:04] 11:57 2:00 PM Mon 30-Mar
2026:089:18:04:11Grating: HETG 12:01 2:04 PM Mon 30-Mar
2026:089:18:06:14RADMON Disable 12:03 2:06 PM Mon 30-Mar
2026:089:18:31:34ER Obsid: 41588 (2 ksec) Purpose: Perigee Attitude 12:28 2:31 PM Mon 30-Mar
2026:089:19:30:58Maneuver to 324.00000 26.00000 70.584 [2026:089:20:10:30] 13:27 3:30 PM Mon 30-Mar
2026:089:19:45:00Comm pass on DSS-34 (duration 1:00) 13:42 3:45 PM Mon 30-Mar
2026:089:20:15:00ER Obsid: 41587 (1 ksec) Purpose: Perigee Attitude 14:12 4:15 PM Mon 30-Mar
2026:089:20:51:46Maneuver to 349.50000 -41.30000 153.579 [2026:089:21:25:30] 14:48 4:51 PM Mon 30-Mar
2026:089:21:30:00ER Obsid: 41586 (1 ksec) Purpose: Perigee Attitude 15:27 5:30 PM Mon 30-Mar
2026:089:22:15:50Maneuver to 190.50000 -6.20000 31.726 [2026:089:22:55:30] 16:12 6:15 PM Mon 30-Mar
2026:089:23:00:00ER Obsid: 41585 (2 ksec) Purpose: Perigee Attitude 16:57 7:00 PM Mon 30-Mar
2026:089:23:38:36Maneuver to 230.00000 -0.90000 94.974 [2026:090:00:05:30] 17:35 7:38 PM Mon 30-Mar
2026:090:00:10:00ER Obsid: 41584 (2 ksec) Purpose: Perigee Attitude 18:07 8:10 PM Mon 30-Mar
2026:090:00:53:48Maneuver to 323.00000 23.00000 73.991 [2026:090:01:25:30] 18:50 8:53 PM Mon 30-Mar
2026:090:01:20:00Comm pass on DSS-26 (duration 1:00) 19:17 9:20 PM Mon 30-Mar
2026:090:01:30:00ER Obsid: 41583 (1 ksec) Purpose: Perigee Attitude 19:27 9:30 PM Mon 30-Mar
2026:090:01:56:35Maneuver to 55.20000 22.50000 285.676 [2026:090:02:35:30] 19:53 9:56 PM Mon 30-Mar
2026:090:02:40:00ER Obsid: 41582 (1 ksec) Purpose: Perigee Attitude 20:3710:40 PM Mon 30-Mar
2026:090:03:00:57Maneuver to 185.20000 -3.70000 259.000 [2026:090:03:40:30] 20:5711:00 PM Mon 30-Mar
2026:090:03:45:00ER Obsid: 41581 (1 ksec) Purpose: Perigee Attitude 21:4211:45 PM Mon 30-Mar
2026:090:04:06:25Maneuver to 49.82064 41.51666 300.015 [2026:090:04:46:01] 22:0312:06 AM Tue 31-Mar
2026:090:04:07:00Grating: NONE 22:0412:07 AM Tue 31-Mar
2026:090:04:28:13RADMON Enable 22:2512:28 AM Tue 31-Mar
2026:090:04:50:31Obsid: 30335 SI: ACIS-I (12 ksec) Target: Perseus cluster 22:4712:50 AM Tue 31-Mar
2026:090:08:18:51Maneuver to 187.91082 3.94860 191.016 [2026:090:08:56:47] 1d 02:15 4:18 AM Tue 31-Mar
2026:090:09:01:17Obsid: 29656 SI: ACIS-S (10 ksec) Target: NGC4496A 1d 02:58 5:01 AM Tue 31-Mar
2026:090:10:20:00Comm pass on DSS-26 (duration 1:00) 1d 04:17 6:20 AM Tue 31-Mar
2026:090:10:20:00Load MAR3026A:CL090:1001 [2026:091:21:25:13] 1d 04:17 6:20 AM Tue 31-Mar
2026:090:10:20:00Load MAR3026A:CL090:1001 [2026:091:21:25:13] 1d 04:17 6:20 AM Tue 31-Mar
2026:090:11:47:57Maneuver to 49.81810 41.51798 300.017 [2026:090:12:25:54] 1d 05:44 7:47 AM Tue 31-Mar
2026:090:12:30:24Obsid: 32268 SI: ACIS-I (17 ksec) Target: Perseus cluster 1d 06:27 8:30 AM Tue 31-Mar
2026:090:17:22:04Maneuver to 187.91236 3.94997 193.258 [2026:090:17:59:59] 1d 11:19 1:22 PM Tue 31-Mar
2026:090:18:04:29Obsid: 32262 SI: ACIS-S (10 ksec) Target: NGC4496A 1d 12:01 2:04 PM Tue 31-Mar
2026:090:20:25:00Comm pass on DSS-54 (duration 1:00) 1d 14:22 4:25 PM Tue 31-Mar
2026:090:20:51:09Maneuver to 49.81574 41.51922 300.019 [2026:090:21:29:04] 1d 14:48 4:51 PM Tue 31-Mar
2026:090:21:33:34Obsid: 32269 SI: ACIS-I (17 ksec) Target: Perseus cluster 1d 15:30 5:33 PM Tue 31-Mar
2026:091:02:20:00Comm pass on DSS-56 (duration 1:00) 1d 20:1710:20 PM Tue 31-Mar
2026:091:02:30:14Maneuver to 187.91344 3.95117 195.360 [2026:091:03:08:07] 1d 20:2710:30 PM Tue 31-Mar
2026:091:03:12:37Obsid: 32263 SI: ACIS-S (10 ksec) Target: NGC4496A 1d 21:0911:12 PM Tue 31-Mar
2026:091:05:59:17Maneuver to 49.81368 41.51977 301.020 [2026:091:06:37:11] 1d 23:56 1:59 AM Wed 01-Apr
2026:091:06:41:41Obsid: 32270 SI: ACIS-I (17 ksec) Target: Perseus cluster 2d 00:38 2:41 AM Wed 01-Apr
2026:091:10:10:00Comm pass on DSS-24 (duration 1:00) 2d 04:07 6:10 AM Wed 01-Apr
2026:091:11:33:21Maneuver to 187.91412 3.95213 197.285 [2026:091:12:11:13] 2d 05:30 7:33 AM Wed 01-Apr
2026:091:12:15:43Obsid: 32264 SI: ACIS-S (10 ksec) Target: NGC4496A 2d 06:12 8:15 AM Wed 01-Apr
2026:091:15:02:23Maneuver to 49.81229 41.52047 301.021 [2026:091:15:40:16] 2d 08:5911:02 AM Wed 01-Apr
2026:091:15:44:46Obsid: 32271 SI: ACIS-I (17 ksec) Target: Perseus cluster 2d 09:4111:44 AM Wed 01-Apr
2026:091:18:40:00Comm pass on DSS-36 (duration 1:00) 2d 12:37 2:40 PM Wed 01-Apr
2026:091:20:36:26Maneuver to 187.91451 3.95290 199.060 [2026:091:21:14:17] 2d 14:33 4:36 PM Wed 01-Apr
2026:091:21:18:47Obsid: 32265 SI: ACIS-S (10 ksec) Target: NGC4496A 2d 15:15 5:18 PM Wed 01-Apr
2026:092:00:02:27Load MAR3026A:CL092:0001 [2026:093:11:25:15] 2d 17:59 8:02 PM Wed 01-Apr
2026:092:00:02:27Load MAR3026A:CL092:0001 [2026:093:11:25:15] 2d 17:59 8:02 PM Wed 01-Apr
2026:092:00:05:27Maneuver to 49.81098 41.52057 302.022 [2026:092:00:43:19] 2d 18:02 8:05 PM Wed 01-Apr
2026:092:00:47:49Obsid: 32272 SI: ACIS-I (17 ksec) Target: Perseus cluster 2d 18:44 8:47 PM Wed 01-Apr
2026:092:05:31:09Maneuver to 135.31951 18.63516 252.653 [2026:092:05:58:42] 2d 23:28 1:31 AM Thu 02-Apr

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP637430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:089:01:57:50 (- 4:05)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:18   P4GM: - 0:18   P41GM: - 0:15
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux135000012000> 30
2hr avg flux13.35000012000> 30
Orbital fluence1.6x107---2.0x109---
ACE data from 2026:089:05:50:00 (- 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 28/2100Z to 29/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 473 km/s at 29/1824Z. Total IMF reached 13 nT at 29/1720Z. The maximum southward component of Bz reached -7 nT at 29/0330Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3754 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (30 Mar), quiet to active levels on day two (31 Mar) and quiet levels on day three (01 Apr).
Solar ActivityAnalysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (30 Mar, 31 Mar, 01 Apr).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor