Page content updated: 2026:228:23:19:01 ( 7:19 PM Sun 16-Aug )

Key Snapshot and SOH Values (Δt = - 8:37)
Obsid30331
Format2_NORM
RadMonENAB
CPE StatusNORM
RA49.968
Dec41.579
Roll103.991
Pitch84.78
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 2026:228:14:41:54 (Δt = - 8:37)

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)
2026:228:13:21:51Maneuver to 49.97002 41.57821 103.989 [2026:228:13:43:24]- 9:57 9:21 AM Sun 16-Aug
2026:228:13:45:00Comm pass on DSS-53 (duration 1:00)- 9:34 9:45 AM Sun 16-Aug
2026:228:13:49:08Obsid: 30331 SI: ACIS-I (12 ksec) Target: Perseus cluster - 9:29 9:49 AM Sun 16-Aug
2026:228:17:09:08Maneuver to 17.86894 -38.10649 76.572 [2026:228:17:39:51]- 6:09 1:09 PM Sun 16-Aug
2026:228:17:44:21Obsid: 30227 SI: ACIS-S (27 ksec) Target: NGC 424 - 5:34 1:44 PM Sun 16-Aug
2026:228:23:19:01--------------- NOW --------------- 0:00 7:19 PM Sun 16-Aug
2026:229:01:16:21Load AUG1726A:CL229:0101 [2026:231:05:32:38] 1:57 9:16 PM Sun 16-Aug
2026:229:01:16:21Load AUG1726A:CL229:0101 [2026:231:05:32:38] 1:57 9:16 PM Sun 16-Aug
2026:229:01:19:21Maneuver to 329.34543 -33.27627 9.258 [2026:229:01:42:21] 2:00 9:19 PM Sun 16-Aug
2026:229:01:46:51Obsid: 32499 SI: ACIS-I (10 ksec) Target: SWIFT J2157.4-3 2:27 9:46 PM Sun 16-Aug
2026:229:04:33:31Maneuver to 160.64028 -33.65848 197.009 [2026:229:05:09:34] 5:1412:33 AM Mon 17-Aug
2026:229:04:37:06Grating: HETG 5:1812:37 AM Mon 17-Aug
2026:229:05:15:56Obsid: 31499 SI: HRC-I (14 ksec) Target: TWA 7 5:56 1:15 AM Mon 17-Aug
2026:229:06:35:00Comm pass on DSS-23 (duration 1:30) 7:15 2:35 AM Mon 17-Aug
2026:229:09:09:16Maneuver to 332.28698 -47.17928 10.211 [2026:229:09:42:16] 9:50 5:09 AM Mon 17-Aug
2026:229:09:46:46Obsid: 29990 SI: ACIS-S (12 ksec) Target: NGC 7213 10:27 5:46 AM Mon 17-Aug
2026:229:12:00:00Comm pass on DSS-34 (duration 1:00) 12:40 8:00 AM Mon 17-Aug
2026:229:13:08:26Maneuver to 40.45426 -8.36239 101.486 [2026:229:13:38:29] 13:49 9:08 AM Mon 17-Aug
2026:229:13:12:00Grating: NONE 13:52 9:12 AM Mon 17-Aug
2026:229:13:42:59Obsid: 30234 SI: ACIS-I (29 ksec) Target: [vD2023]1 14:23 9:42 AM Mon 17-Aug
2026:229:22:01:06Maneuver to 331.65000 -14.70000 73.487 [2026:229:22:27:19] 22:42 6:01 PM Mon 17-Aug
2026:229:22:04:41Grating: HETG 22:45 6:04 PM Mon 17-Aug
2026:229:22:07:07RADMON Disable 22:48 6:07 PM Mon 17-Aug
2026:229:22:31:49ER Obsid: 41220 (3 ksec) Purpose: Perigee Attitude 23:12 6:31 PM Mon 17-Aug
2026:230:00:07:18Maneuver to 323.10000 -12.90000 264.100 [2026:230:00:55:30] 1d 00:48 8:07 PM Mon 17-Aug
2026:230:01:00:00ER Obsid: 41219 (3 ksec) Purpose: Perigee Attitude 1d 01:40 9:00 PM Mon 17-Aug
2026:230:03:17:07Maneuver to 203.00000 28.00000 273.875 [2026:230:03:55:30] 1d 03:5811:17 PM Mon 17-Aug
2026:230:04:00:00ER Obsid: 41218 (3 ksec) Purpose: Perigee Attitude 1d 04:4012:00 AM Tue 18-Aug
2026:230:08:17:05Maneuver to 323.10000 -12.90000 266.104 [2026:230:08:55:30] 1d 08:58 4:17 AM Tue 18-Aug
2026:230:09:00:00ER Obsid: 41217 (3 ksec) Purpose: Perigee Attitude 1d 09:40 5:00 AM Tue 18-Aug
2026:230:10:16:59Maneuver to 201.70160 26.61641 271.705 [2026:230:10:55:39] 1d 10:57 6:16 AM Tue 18-Aug
2026:230:10:17:33Grating: NONE 1d 10:58 6:17 AM Tue 18-Aug
2026:230:10:42:17RADMON Enable 1d 11:23 6:42 AM Tue 18-Aug
2026:230:11:00:09Obsid: 30007 SI: ACIS-S (12 ksec) Target: MaNGA 8982-9101 1d 11:41 7:00 AM Tue 18-Aug
2026:230:12:20:00Comm pass on DSS-53 (duration 1:30) 1d 13:00 8:20 AM Tue 18-Aug
2026:230:14:20:09Maneuver to 326.87783 6.62020 194.998 [2026:230:14:57:26] 1d 15:0110:20 AM Tue 18-Aug
2026:230:15:02:34Obsid: 31037 SI: HRC-I (8 ksec) Target: TIC466376085 1d 15:4311:02 AM Tue 18-Aug
2026:230:17:15:54Maneuver to 4.87980 59.13167 142.994 [2026:230:17:41:32] 1d 17:56 1:15 PM Tue 18-Aug
2026:230:17:16:43Grating: HETG 1d 17:57 1:16 PM Tue 18-Aug
2026:230:17:46:37Obsid: 30089 SI: ACIS-S (40 ksec) Target: TV Cassiopeia 1d 18:27 1:46 PM Tue 18-Aug
2026:230:21:30:00Comm pass on DSS-54 (duration 1:00) 1d 22:10 5:30 PM Tue 18-Aug
2026:231:02:25:00Comm pass on DSS-23 (duration 1:00) 2d 03:0510:25 PM Tue 18-Aug
2026:231:04:53:17Maneuver to 326.87819 6.61522 183.607 [2026:231:05:18:05] 2d 05:3412:53 AM Wed 19-Aug
2026:231:04:56:51Grating: NONE 2d 05:3712:56 AM Wed 19-Aug
2026:231:05:35:42Obsid: 32504 SI: HRC-I (9 ksec) Target: TIC466376085 2d 06:16 1:35 AM Wed 19-Aug
2026:231:08:11:02Load AUG1726A:CL231:0801 [2026:233:17:38:47] 2d 08:52 4:11 AM Wed 19-Aug
2026:231:08:11:02Load AUG1726A:CL231:0801 [2026:233:17:38:47] 2d 08:52 4:11 AM Wed 19-Aug
2026:231:08:14:02Maneuver to 210.88939 54.33388 278.017 [2026:231:08:47:11] 2d 08:55 4:14 AM Wed 19-Aug
2026:231:08:51:41Obsid: 31167 SI: ACIS-S (15 ksec) Target: SN 2023ixf 2d 09:32 4:51 AM Wed 19-Aug
2026:231:12:55:00Comm pass on DSS-56 (duration 1:00) 2d 13:35 8:55 AM Wed 19-Aug
2026:231:13:01:41Maneuver to 35.65504 42.31485 114.886 [2026:231:13:31:46] 2d 13:42 9:01 AM Wed 19-Aug
2026:231:13:36:16Obsid: 29830 SI: ACIS-S (15 ksec) Target: SN 1986J 2d 14:17 9:36 AM Wed 19-Aug
2026:231:17:46:16Maneuver to 326.87533 6.61766 193.998 [2026:231:18:15:29] 2d 18:27 1:46 PM Wed 19-Aug
2026:231:18:28:41Obsid: 32505 SI: HRC-I (6 ksec) Target: TIC466376085 2d 19:09 2:28 PM Wed 19-Aug
2026:231:20:17:01Maneuver to 210.89021 54.33315 278.017 [2026:231:20:50:04] 2d 20:58 4:17 PM Wed 19-Aug
2026:231:20:54:34Obsid: 32506 SI: ACIS-S (13 ksec) Target: SN 2023ixf 2d 21:35 4:54 PM Wed 19-Aug
2026:231:22:20:00Comm pass on DSS-56 (duration 1:00) 2d 23:00 6:20 PM Wed 19-Aug

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP535430
P4GM---0.06300
P41GM---0.018.47
CXO: from snapshot at 2026:228:14:41:54 (- 8:37)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:24   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux37.35000012000> 30
2hr avg flux345000012000> 30
Orbital fluence3.5x106---2.0x109---
ACE data from 2026:228:23:05:00 (- 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 15/2100Z to 16/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind parameters were at background levels. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 395 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (17 Aug, 18 Aug) and quiet levels on day three (19 Aug).
Solar ActivityAnalysis of Solar Active Regions and Activity from 15/2100Z to 16/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (17 Aug, 18 Aug, 19 Aug).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor