Page content updated: 2026:244:03:35:00 ( 11:35 PM Mon 31-Aug )

Key Snapshot and SOH Values (Δt = - 0:18)
Obsid30440
Format1_NORM
RadMonENAB
CPE StatusNORM
RA352.222
Dec5.246
Roll155.998
Pitch162.19
Sim Z-46728
Sim Focus-715
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:244:03:16:12 (Δt = - 0:18)

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)
2026:243:15:51:16Obsid: 30196 SI: ACIS-S (13 ksec) Target: NGC5728 -11:4311:51 AM Mon 31-Aug
2026:243:18:25:00Comm pass on DSS-54 (duration 1:00)- 9:10 2:25 PM Mon 31-Aug
2026:243:19:27:56Maneuver to 266.99125 -28.11684 270.477 [2026:243:19:48:43]- 8:07 3:27 PM Mon 31-Aug
2026:243:19:53:13Obsid: 32535 SI: ACIS-S (2 ksec) Target: SRGA J174800.5- - 7:41 3:53 PM Mon 31-Aug
2026:243:20:26:33Maneuver to 258.19437 64.07097 252.013 [2026:243:20:58:33]- 7:08 4:26 PM Mon 31-Aug
2026:243:21:03:03Obsid: 32529 SI: ACIS-I (18 ksec) Target: Abell 2255 - 6:31 5:03 PM Mon 31-Aug
2026:244:02:03:03Maneuver to 352.21800 5.24940 155.998 [2026:244:02:34:04]- 1:3110:03 PM Mon 31-Aug
2026:244:02:20:00Comm pass on DSS-23 (duration 1:00)- 1:1510:20 PM Mon 31-Aug
2026:244:02:45:28Obsid: 30440 SI: HRC-I (10 ksec) Target: G29-38 - 0:4910:45 PM Mon 31-Aug
2026:244:03:35:00--------------- NOW --------------- 0:0011:35 PM Mon 31-Aug
2026:244:05:33:48Maneuver to 49.86396 41.49970 109.852 [2026:244:05:59:22] 1:58 1:33 AM Tue 01-Sep
2026:244:06:03:52Obsid: 31881 SI: ACIS-I (30 ksec) Target: Perseus cluster 2:28 2:03 AM Tue 01-Sep
2026:244:13:30:00Comm pass on DSS-53 (duration 1:00) 9:55 9:30 AM Tue 01-Sep
2026:244:13:30:00Load AUG3126A:CL244:1301 [2026:246:00:55:44] 9:55 9:30 AM Tue 01-Sep
2026:244:13:30:00Load AUG3126A:CL244:1301 [2026:246:00:55:44] 9:55 9:30 AM Tue 01-Sep
2026:244:14:30:32Maneuver to 352.21596 5.24401 138.718 [2026:244:14:55:28] 10:5510:30 AM Tue 01-Sep
2026:244:15:12:57Obsid: 32530 SI: HRC-I (8 ksec) Target: G29-38 11:3711:12 AM Tue 01-Sep
2026:244:17:36:17Maneuver to 40.65693 -21.56235 86.747 [2026:244:18:04:49] 14:01 1:36 PM Tue 01-Sep
2026:244:18:09:19Obsid: 30402 SI: ACIS-S (34 ksec) Target: ClG J0242-2132 14:34 2:09 PM Tue 01-Sep
2026:244:23:20:00Comm pass on DSS-24 (duration 1:30) 19:45 7:20 PM Tue 01-Sep
2026:245:03:35:59Maneuver to 352.21515 5.24450 139.527 [2026:245:04:04:39] 1d 00:0011:35 PM Tue 01-Sep
2026:245:04:18:24Obsid: 30441 SI: HRC-I (5 ksec) Target: G29-38 1d 00:4312:18 AM Wed 02-Sep
2026:245:05:41:44Maneuver to 152.52232 54.48946 11.482 [2026:245:06:19:08] 1d 02:06 1:41 AM Wed 02-Sep
2026:245:06:23:38Obsid: 32520 SI: ACIS-I (10 ksec) Target: UGC 05479 1d 02:48 2:23 AM Wed 02-Sep
2026:245:09:10:18Maneuver to 335.11703 1.17653 210.000 [2026:245:09:49:12] 1d 05:35 5:10 AM Wed 02-Sep
2026:245:09:53:42Obsid: 32517 SI: ACIS-S (10 ksec) Target: SDSSJ222024.58+ 1d 06:18 5:53 AM Wed 02-Sep
2026:245:10:00:00Comm pass on DSS-36 (duration 1:00) 1d 06:25 6:00 AM Wed 02-Sep
2026:245:12:52:02Maneuver to 238.93044 11.21497 267.000 [2026:245:13:25:55] 1d 09:17 8:52 AM Wed 02-Sep
2026:245:13:30:25Obsid: 30438 SI: ACIS-I (16 ksec) Target: PG 1553+113 1d 09:55 9:30 AM Wed 02-Sep
2026:245:18:06:36Maneuver to 239.00000 11.15000 264.533 [2026:245:18:15:04] 1d 14:31 2:06 PM Wed 02-Sep
2026:245:18:10:10Grating: HETG 1d 14:35 2:10 PM Wed 02-Sep
2026:245:18:12:36RADMON Disable 1d 14:37 2:12 PM Wed 02-Sep
2026:245:18:19:34ER Obsid: 41180 (1 ksec) Purpose: Perigee Attitude 1d 14:44 2:19 PM Wed 02-Sep
2026:245:18:30:00Comm pass on DSS-54 (duration 1:30) 1d 14:55 2:30 PM Wed 02-Sep
2026:245:18:40:02Maneuver to 338.70000 -6.90000 251.211 [2026:245:19:13:30] 1d 15:05 2:40 PM Wed 02-Sep
2026:245:19:18:00ER Obsid: 41179 (2 ksec) Purpose: Perigee Attitude 1d 15:43 3:18 PM Wed 02-Sep
2026:245:20:17:01Maneuver to 344.00000 -5.90000 128.211 [2026:245:20:55:30] 1d 16:42 4:17 PM Wed 02-Sep
2026:245:21:00:00ER Obsid: 41178 (3 ksec) Purpose: Perigee Attitude 1d 17:25 5:00 PM Wed 02-Sep
2026:245:22:17:19Maneuver to 108.00000 30.00000 77.524 [2026:245:22:55:30] 1d 18:42 6:17 PM Wed 02-Sep
2026:245:23:00:00ER Obsid: 41177 (3 ksec) Purpose: Perigee Attitude 1d 19:25 7:00 PM Wed 02-Sep
2026:246:00:22:32Maneuver to 2.75000 8.30000 126.896 [2026:246:00:55:30] 1d 20:47 8:22 PM Wed 02-Sep
2026:246:01:00:00ER Obsid: 41176 (3 ksec) Purpose: Perigee Attitude 1d 21:25 9:00 PM Wed 02-Sep
2026:246:02:33:01Load AUG3126A:CL246:0201 [2026:247:14:05:02] 1d 22:5810:33 PM Wed 02-Sep
2026:246:02:33:01Load AUG3126A:CL246:0201 [2026:247:14:05:02] 1d 22:5810:33 PM Wed 02-Sep
2026:246:02:36:01Maneuver to 119.00000 36.00000 64.663 [2026:246:03:10:30] 1d 23:0110:36 PM Wed 02-Sep
2026:246:03:15:00ER Obsid: 41175 (1 ksec) Purpose: Perigee Attitude 1d 23:4011:15 PM Wed 02-Sep
2026:246:03:53:27Maneuver to 205.90000 -12.70000 247.387 [2026:246:04:40:30] 2d 00:1811:53 PM Wed 02-Sep
2026:246:04:45:00ER Obsid: 41174 (1 ksec) Purpose: Perigee Attitude 2d 01:1012:45 AM Thu 03-Sep
2026:246:05:15:55Maneuver to 339.00000 -9.00000 294.886 [2026:246:05:55:30] 2d 01:40 1:15 AM Thu 03-Sep
2026:246:06:00:00ER Obsid: 41173 (3 ksec) Purpose: Perigee Attitude 2d 02:25 2:00 AM Thu 03-Sep
2026:246:07:11:09Maneuver to 220.59794 -17.22555 251.726 [2026:246:07:47:25] 2d 03:36 3:11 AM Thu 03-Sep
2026:246:07:11:43Grating: NONE 2d 03:36 3:11 AM Thu 03-Sep
2026:246:07:34:03RADMON Enable 2d 03:59 3:34 AM Thu 03-Sep
2026:246:07:51:55Obsid: 32527 SI: ACIS-S (10 ksec) Target: NGC5728 2d 04:16 3:51 AM Thu 03-Sep
2026:246:10:00:00Comm pass on DSS-53 (duration 1:00) 2d 06:25 6:00 AM Thu 03-Sep
2026:246:10:38:35Maneuver to 337.40162 -8.52491 281.395 [2026:246:11:14:39] 2d 07:03 6:38 AM Thu 03-Sep
2026:246:11:19:09Obsid: 32519 SI: ACIS-S (10 ksec) Target: PKS2227-088 2d 07:44 7:19 AM Thu 03-Sep
2026:246:14:05:49Maneuver to 220.59777 -17.22423 251.737 [2026:246:14:41:52] 2d 10:3010:05 AM Thu 03-Sep
2026:246:14:46:22Obsid: 32528 SI: ACIS-S (10 ksec) Target: NGC5728 2d 11:1110:46 AM Thu 03-Sep
2026:246:17:33:02Maneuver to 258.19002 64.07389 256.017 [2026:246:18:03:50] 2d 13:58 1:33 PM Thu 03-Sep
2026:246:18:08:20Obsid: 30427 SI: ACIS-I (22 ksec) Target: Abell 2255 2d 14:33 2:08 PM Thu 03-Sep
2026:246:21:45:00Comm pass on DSS-56 (duration 1:00) 2d 18:10 5:45 PM Thu 03-Sep
2026:247:00:15:00Maneuver to 352.22091 5.25122 160.498 [2026:247:00:45:59] 2d 20:40 8:15 PM Thu 03-Sep
2026:247:00:57:25Obsid: 32531 SI: HRC-I (9 ksec) Target: G29-38 2d 21:22 8:57 PM Thu 03-Sep
2026:247:03:00:00Comm pass on DSS-23 (duration 1:00) 2d 23:2511:00 PM Thu 03-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield407917250
HRC MCP586430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:244:03:16:12 (- 0:18)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:20   P4GM: - 0:20   P41GM: - 0:20
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux64.85000012000> 30
2hr avg flux205000012000> 30
Orbital fluence1.4x106---2.0x109---
ACE data from 2026:244:03:20:00 (- 0:15)
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 30/2100Z to 31/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 466 km/s at 31/1414 UTC. Total IMF reached 5 nT at 31/1642 UTC. The maximum southward component of Bz reached -5 nT at 31/0020 UTC. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2007 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (01 Sep) and quiet levels on days two and three (02 Sep, 03 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 30/2100Z to 31/2100Z: 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 likely to be low with a slight chance for an M-class flare on days one, two, and three (01 Sep, 02 Sep, 03 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor