Page content updated: 2026:238:20:32:02 ( 4:32 PM Wed 26-Aug )

Key Snapshot and SOH Values (Δt = - 8:34)
Obsid30095
Format2_NORM
RadMonENAB
CPE StatusNORM
RA134.874
Dec-43.540
Roll156.488
Pitch56.66
Sim Z92903
Sim Focus-535
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:238:11:57:56 (Δt = - 8:34)

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)
2026:238:08:52:34Maneuver to 134.88115 -43.53722 156.493 [2026:238:09:30:07]-11:39 4:52 AM Wed 26-Aug
2026:238:08:53:08Grating: NONE-11:38 4:53 AM Wed 26-Aug
2026:238:09:09:36RADMON Enable-11:22 5:09 AM Wed 26-Aug
2026:238:09:34:37Obsid: 30095 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela -10:57 5:34 AM Wed 26-Aug
2026:238:11:20:00Comm pass on DSS-53 (duration 0:40)- 9:12 7:20 AM Wed 26-Aug
2026:238:13:19:57Maneuver to 349.43918 -36.81991 30.057 [2026:238:13:51:47]- 7:12 9:19 AM Wed 26-Aug
2026:238:13:56:17Obsid: 30034 SI: ACIS-S (11 ksec) Target: ACT-CL J2317.7- - 6:35 9:56 AM Wed 26-Aug
2026:238:17:02:57Maneuver to 40.66066 -21.56550 91.112 [2026:238:17:26:42]- 3:29 1:02 PM Wed 26-Aug
2026:238:17:31:12Obsid: 30407 SI: ACIS-S (9 ksec) Target: ClG J0242-2132 - 3:00 1:31 PM Wed 26-Aug
2026:238:20:12:35Maneuver to 344.91100 24.92226 163.717 [2026:238:20:45:08]- 0:19 4:12 PM Wed 26-Aug
2026:238:20:30:00Comm pass on DSS-54 (duration 1:00)- 0:02 4:30 PM Wed 26-Aug
2026:238:20:32:02--------------- NOW --------------- 0:00 4:32 PM Wed 26-Aug
2026:238:20:55:00Obsid: 32497 SI: HRC-S (1 ksec) Target: 2CXO J225932.9+ 0:22 4:55 PM Wed 26-Aug
2026:238:21:11:40Maneuver to 344.77278 24.49030 163.801 [2026:238:21:15:40] 0:39 5:11 PM Wed 26-Aug
2026:238:21:20:10ER Obsid: 41197 (0 ksec) Purpose: Intermediate Attitud 0:48 5:20 PM Wed 26-Aug
2026:238:21:35:51Maneuver to 40.65928 -21.56301 90.975 [2026:238:22:08:26] 1:03 5:35 PM Wed 26-Aug
2026:238:22:12:56Obsid: 30409 SI: ACIS-S (68 ksec) Target: ClG J0242-2132 1:40 6:12 PM Wed 26-Aug
2026:238:23:54:19Load AUG2426A:CL238:2301 [2026:240:11:30:02] 3:22 7:54 PM Wed 26-Aug
2026:238:23:54:19Load AUG2426A:CL238:2301 [2026:240:11:30:02] 3:22 7:54 PM Wed 26-Aug
2026:239:03:00:00Comm pass on DSS-23 (duration 1:00) 6:2711:00 PM Wed 26-Aug
2026:239:12:10:00Comm pass on DSS-54 (duration 1:00) 15:37 8:10 AM Thu 27-Aug
2026:239:17:11:59Maneuver to 342.53543 -9.90006 91.210 [2026:239:17:36:09] 20:39 1:11 PM Thu 27-Aug
2026:239:17:40:39ER Obsid: 41196 (0 ksec) Purpose: Intermediate Attitud 21:08 1:40 PM Thu 27-Aug
2026:239:17:56:20Maneuver to 35.61849 -8.96936 96.265 [2026:239:18:19:00] 21:24 1:56 PM Thu 27-Aug
2026:239:18:23:30Obsid: 31998 SI: ACIS-S (12 ksec) Target: SDSS J022226.11 21:51 2:23 PM Thu 27-Aug
2026:239:21:46:50Maneuver to 65.06417 19.22083 99.708 [2026:239:22:06:56] 1d 01:14 5:46 PM Thu 27-Aug
2026:239:22:31:14Obsid: 31061 SI: HRC-I (5 ksec) Target: HD 27406 1d 01:59 6:31 PM Thu 27-Aug
2026:239:23:54:34Maneuver to 341.54588 -5.45835 113.001 [2026:240:00:24:37] 1d 03:22 7:54 PM Thu 27-Aug
2026:240:00:29:07Obsid: 32516 SI: ACIS-S (15 ksec) Target: WISE J2246-0526 1d 03:57 8:29 PM Thu 27-Aug
2026:240:02:40:00Comm pass on DSS-23 (duration 1:00) 1d 06:0710:40 PM Thu 27-Aug
2026:240:04:39:07Maneuver to 26.71456 48.43542 127.590 [2026:240:05:06:34] 1d 08:0712:39 AM Fri 28-Aug
2026:240:05:11:04Obsid: 32510 SI: ACIS-S (22 ksec) Target: MASTER J0146+48 1d 08:39 1:11 AM Fri 28-Aug
2026:240:10:00:00Comm pass on DSS-36 (duration 1:00) 1d 13:27 6:00 AM Fri 28-Aug
2026:240:11:30:43Load AUG2426A:CL240:1101 [2026:241:22:33:39] 1d 14:58 7:30 AM Fri 28-Aug
2026:240:11:30:43Load AUG2426A:CL240:1101 [2026:241:22:33:39] 1d 14:58 7:30 AM Fri 28-Aug
2026:240:11:33:43Maneuver to 341.10950 -6.62394 125.532 [2026:240:12:00:28] 1d 15:01 7:33 AM Fri 28-Aug
2026:240:11:37:18Grating: HETG 1d 15:05 7:37 AM Fri 28-Aug
2026:240:11:39:21RADMON Disable 1d 15:07 7:39 AM Fri 28-Aug
2026:240:12:04:58ER Obsid: 41195 (0 ksec) Purpose: Perigee Attitude 1d 15:32 8:04 AM Fri 28-Aug
2026:240:12:20:39Maneuver to 114.07829 42.61688 61.210 [2026:240:12:59:32] 1d 15:48 8:20 AM Fri 28-Aug
2026:240:13:04:02ER Obsid: 41194 (3 ksec) Purpose: Perigee Attitude 1d 16:32 9:04 AM Fri 28-Aug
2026:240:13:54:02Maneuver to 339.24736 -3.55599 158.300 [2026:240:14:32:43] 1d 17:22 9:54 AM Fri 28-Aug
2026:240:14:37:13ER Obsid: 41193 (0 ksec) Purpose: Perigee Attitude 1d 18:0510:37 AM Fri 28-Aug
2026:240:14:52:54Maneuver to 332.38405 -10.98482 286.197 [2026:240:15:32:34] 1d 18:2010:52 AM Fri 28-Aug
2026:240:15:37:04ER Obsid: 41192 (3 ksec) Purpose: Perigee Attitude 1d 19:0511:37 AM Fri 28-Aug
2026:240:16:42:39Maneuver to 225.60000 -36.40000 249.280 [2026:240:17:15:30] 1d 20:1012:42 PM Fri 28-Aug
2026:240:17:20:00ER Obsid: 41191 (3 ksec) Purpose: Perigee Attitude 1d 20:47 1:20 PM Fri 28-Aug
2026:240:18:25:00Comm pass on DSS-36 (duration 1:00) 1d 21:52 2:25 PM Fri 28-Aug
2026:240:21:47:39Maneuver to 332.38405 -10.98482 286.586 [2026:240:22:20:30] 2d 01:15 5:47 PM Fri 28-Aug
2026:240:22:25:00ER Obsid: 41190 (0 ksec) Purpose: Perigee Attitude 2d 01:52 6:25 PM Fri 28-Aug
2026:240:23:43:24Maneuver to 220.59956 -17.22891 249.000 [2026:241:00:18:10] 2d 03:11 7:43 PM Fri 28-Aug
2026:240:23:43:58Grating: NONE 2d 03:11 7:43 PM Fri 28-Aug
2026:241:00:04:48RADMON Enable 2d 03:32 8:04 PM Fri 28-Aug
2026:241:00:22:40Obsid: 30203 SI: ACIS-S (16 ksec) Target: NGC5728 2d 03:50 8:22 PM Fri 28-Aug
2026:241:01:00:00Comm pass on DSS-23 (duration 1:00) 2d 04:27 9:00 PM Fri 28-Aug
2026:241:04:49:20Maneuver to 324.99372 -8.10572 262.780 [2026:241:05:23:04] 2d 08:1712:49 AM Sat 29-Aug
2026:241:05:27:34Obsid: 32508 SI: ACIS-I (10 ksec) Target: RMJ214001.0-080 2d 08:55 1:27 AM Sat 29-Aug
2026:241:07:55:00Comm pass on DSS-24 (duration 0:45) 2d 11:22 3:55 AM Sat 29-Aug
2026:241:08:14:14Maneuver to 220.59948 -17.22785 249.000 [2026:241:08:47:57] 2d 11:42 4:14 AM Sat 29-Aug
2026:241:08:52:27Obsid: 32515 SI: ACIS-S (16 ksec) Target: NGC5728 2d 12:20 4:52 AM Sat 29-Aug
2026:241:13:22:27Maneuver to 327.46768 -18.97885 313.053 [2026:241:13:55:52] 2d 16:50 9:22 AM Sat 29-Aug
2026:241:14:00:22Obsid: 32507 SI: ACIS-S (10 ksec) Target: LEDA2831062 2d 17:2810:00 AM Sat 29-Aug
2026:241:16:47:02Maneuver to 317.98578 -58.86319 334.872 [2026:241:17:08:55] 2d 20:1512:47 PM Sat 29-Aug
2026:241:17:08:55ER Obsid: 41189 (0 ksec) Purpose: Intermediate Attitud 2d 20:36 1:08 PM Sat 29-Aug
2026:241:17:09:16Maneuver to 135.56262 -40.55959 148.022 [2026:241:17:38:11] 2d 20:37 1:09 PM Sat 29-Aug
2026:241:17:09:50Grating: HETG 2d 20:37 1:09 PM Sat 29-Aug
2026:241:17:20:00Comm pass on DSS-54 (duration 0:30) 2d 20:47 1:20 PM Sat 29-Aug
2026:241:17:42:41Obsid: 30505 SI: ACIS-S (15 ksec) Target: Vela X-1 2d 21:10 1:42 PM Sat 29-Aug

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP560930
P4GM---0.06300
P41GM---0.018.47
CXO: from snapshot at 2026:238:11:57:56 (- 8:34)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:17   P4GM: - 0:17   P41GM: - 0:14
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux27.55000012000> 30
2hr avg flux25.85000012000> 30
Orbital fluence1.5x106---2.0x109---
ACE data from 2026:238:20:15:00 (- 0:17)
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 24/2100Z to 25/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 356 km/s at 24/2200z. Total IMF reached 7 nT at 24/2200z. The maximum southward component of Bz reached -1 nT at 25/1451z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 3 pfu at 25/0420Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1607 pfu at 25/1705z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (26 Aug), unsettled to minor storm levels on day two (27 Aug) and active to major storm levels on day three (28 Aug). Protons have a slight chance of crossing threshold on days one, two, and three (26 Aug, 27 Aug, 28 Aug).
Solar ActivityAnalysis of Solar Active Regions and Activity from 24/2100Z to 25/2100Z: Solar activity has been at high levels for the past 24 hours. There are currently 4 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a slight chance for an X-class flare on days one, two, and three (26 Aug, 27 Aug, 28 Aug).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor