Page content updated: 2026:259:18:17:01 ( 2:17 PM Wed 16-Sep )

Key Snapshot and SOH Values (Δt = - 6:34)
Obsid41136
Format2_NORM
RadMonDISA
CPE StatusNORM
RA353.998
Dec1.000
Roll176.916
Pitch176.04
Sim Z-99616
Sim Focus-467
HETG angle5.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonDISA
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:259:11:42:18 (Δt = - 6:34)

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)
2026:259:06:30:00ER Obsid: 41138 (3 ksec) Purpose: Perigee Attitude -11:47 2:30 AM Wed 16-Sep
2026:259:09:04:05Maneuver to 161.50000 49.00000 16.696 [2026:259:09:25:30]- 9:12 5:04 AM Wed 16-Sep
2026:259:09:30:00ER Obsid: 41137 (2 ksec) Purpose: Perigee Attitude - 8:47 5:30 AM Wed 16-Sep
2026:259:10:40:50Maneuver to 354.00000 1.00000 176.917 [2026:259:11:20:30]- 7:36 6:40 AM Wed 16-Sep
2026:259:10:45:00Comm pass on DSS-56 (duration 1:00)- 7:32 6:45 AM Wed 16-Sep
2026:259:11:25:00ER Obsid: 41136 (1 ksec) Purpose: Perigee Attitude - 6:52 7:25 AM Wed 16-Sep
2026:259:12:09:37Maneuver to 154.34911 47.01702 26.898 [2026:259:12:49:22]- 6:07 8:09 AM Wed 16-Sep
2026:259:12:10:12Grating: NONE- 6:06 8:10 AM Wed 16-Sep
2026:259:12:36:00RADMON Enable- 5:41 8:36 AM Wed 16-Sep
2026:259:12:53:52Obsid: 33217 SI: ACIS-S (10 ksec) Target: SDSSJ101730.98+ - 5:23 8:53 AM Wed 16-Sep
2026:259:15:48:52Maneuver to 350.78277 58.82630 183.630 [2026:259:16:16:10]- 2:2811:48 AM Wed 16-Sep
2026:259:16:20:40Obsid: 31386 SI: ACIS-I (2 ksec) Target: Cas A - 1:5612:20 PM Wed 16-Sep
2026:259:16:54:00Maneuver to 351.04620 58.83457 183.359 [2026:259:16:58:00]- 1:2312:54 PM Wed 16-Sep
2026:259:17:15:16Obsid: 31387 SI: ACIS-I (2 ksec) Target: Cas A - 1:01 1:15 PM Wed 16-Sep
2026:259:17:48:36Maneuver to 350.78237 58.82615 183.697 [2026:259:17:52:36]- 0:28 1:48 PM Wed 16-Sep
2026:259:17:57:06Obsid: 31388 SI: ACIS-I (2 ksec) Target: Cas A - 0:19 1:57 PM Wed 16-Sep
2026:259:18:17:01--------------- NOW --------------- 0:00 2:17 PM Wed 16-Sep
2026:259:18:30:31Maneuver to 4.66088 16.44687 150.170 [2026:259:18:52:33] 0:13 2:30 PM Wed 16-Sep
2026:259:18:57:03Obsid: 30023 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 0:40 2:57 PM Wed 16-Sep
2026:259:20:20:00Comm pass on DSS-53 (duration 1:00) 2:02 4:20 PM Wed 16-Sep
2026:259:21:43:43Maneuver to 126.13740 24.61507 68.000 [2026:259:22:19:19] 3:26 5:43 PM Wed 16-Sep
2026:259:22:23:49Obsid: 32933 SI: ACIS-S (12 ksec) Target: 5C 7.230 4:06 6:23 PM Wed 16-Sep
2026:260:01:52:09Maneuver to 9.59742 -2.15591 91.215 [2026:260:02:28:47] 7:35 9:52 PM Wed 16-Sep
2026:260:02:33:17Obsid: 31314 SI: ACIS-S (21 ksec) Target: 3CR 17 8:1610:33 PM Wed 16-Sep
2026:260:08:28:37Load SEP1426A:CL260:0801 [2026:261:20:28:22] 14:11 4:28 AM Thu 17-Sep
2026:260:08:28:37Load SEP1426A:CL260:0801 [2026:261:20:28:22] 14:11 4:28 AM Thu 17-Sep
2026:260:08:31:37Maneuver to 126.13747 24.61397 68.000 [2026:260:09:08:16] 14:14 4:31 AM Thu 17-Sep
2026:260:09:12:46Obsid: 33234 SI: ACIS-S (15 ksec) Target: 5C 7.230 14:55 5:12 AM Thu 17-Sep
2026:260:10:00:00Comm pass on DSS-54 (duration 1:00) 15:42 6:00 AM Thu 17-Sep
2026:260:13:34:26Maneuver to 4.66158 16.44865 154.994 [2026:260:14:10:10] 19:17 9:34 AM Thu 17-Sep
2026:260:14:14:40Obsid: 33223 SI: ACIS-I (11 ksec) Target: MACS J0018.5+16 19:5710:14 AM Thu 17-Sep
2026:260:17:18:00Maneuver to 215.74670 63.98218 311.057 [2026:260:17:50:40] 23:00 1:18 PM Thu 17-Sep
2026:260:17:55:10Obsid: 29915 SI: ACIS-S (14 ksec) Target: SDSS J142314.36 23:38 1:55 PM Thu 17-Sep
2026:260:21:00:00Comm pass on DSS-65 (duration 1:30) 1d 02:42 5:00 PM Thu 17-Sep
2026:260:21:48:30Maneuver to 4.66093 16.44865 154.994 [2026:260:22:21:10] 1d 03:31 5:48 PM Thu 17-Sep
2026:260:22:25:40Obsid: 33224 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 1d 04:08 6:25 PM Thu 17-Sep
2026:261:01:12:20Maneuver to 53.42605 -5.11739 89.224 [2026:261:01:40:48] 1d 06:55 9:12 PM Thu 17-Sep
2026:261:01:45:18Obsid: 29938 SI: ACIS-S (29 ksec) Target: NGC 1358 1d 07:28 9:45 PM Thu 17-Sep
2026:261:02:30:00Comm pass on DSS-23 (duration 1:00) 1d 08:1210:30 PM Thu 17-Sep
2026:261:10:00:00Comm pass on DSS-36 (duration 1:00) 1d 15:42 6:00 AM Fri 18-Sep
2026:261:10:03:38Maneuver to 9.59554 -2.15426 89.259 [2026:261:10:24:26] 1d 15:46 6:03 AM Fri 18-Sep
2026:261:10:28:56Obsid: 33231 SI: ACIS-S (10 ksec) Target: 3CR 17 1d 16:11 6:28 AM Fri 18-Sep
2026:261:13:21:58Maneuver to 358.97000 -2.51000 79.062 [2026:261:13:34:20] 1d 19:04 9:21 AM Fri 18-Sep
2026:261:13:25:33Grating: HETG 1d 19:08 9:25 AM Fri 18-Sep
2026:261:13:27:36RADMON Disable 1d 19:10 9:27 AM Fri 18-Sep
2026:261:13:38:50ER Obsid: 41135 (3 ksec) Purpose: Perigee Attitude 1d 19:21 9:38 AM Fri 18-Sep
2026:261:15:15:56Maneuver to 129.00000 -11.00000 102.552 [2026:261:15:55:30] 1d 20:5811:15 AM Fri 18-Sep
2026:261:16:00:00ER Obsid: 41134 (3 ksec) Purpose: Perigee Attitude 1d 21:4212:00 PM Fri 18-Sep
2026:261:17:21:57Maneuver to 204.00000 -39.00000 217.000 [2026:261:17:55:30] 1d 23:04 1:21 PM Fri 18-Sep
2026:261:18:00:00ER Obsid: 41133 (3 ksec) Purpose: Perigee Attitude 1d 23:42 2:00 PM Fri 18-Sep
2026:261:18:30:00Comm pass on DSS-65 (duration 1:00) 2d 00:12 2:30 PM Fri 18-Sep
2026:261:19:45:44Maneuver to 353.10000 -3.80000 305.667 [2026:261:20:25:30] 2d 01:28 3:45 PM Fri 18-Sep
2026:261:20:30:00ER Obsid: 41132 (1 ksec) Purpose: Perigee Attitude 2d 02:12 4:30 PM Fri 18-Sep
2026:261:20:57:42Load SEP1426A:CL261:2001 [2026:263:06:52:20] 2d 02:40 4:57 PM Fri 18-Sep
2026:261:20:57:42Load SEP1426A:CL261:2001 [2026:263:06:52:20] 2d 02:40 4:57 PM Fri 18-Sep
2026:261:21:00:42Maneuver to 204.00000 -39.00000 219.040 [2026:261:21:40:30] 2d 02:43 5:00 PM Fri 18-Sep
2026:261:21:45:00ER Obsid: 41131 (2 ksec) Purpose: Perigee Attitude 2d 03:27 5:45 PM Fri 18-Sep
2026:261:22:34:32Maneuver to 145.00000 42.00000 41.000 [2026:261:23:25:30] 2d 04:17 6:34 PM Fri 18-Sep
2026:261:23:10:00Comm pass on DSS-36 (duration 1:00) 2d 04:52 7:10 PM Fri 18-Sep
2026:261:23:30:00ER Obsid: 41130 (3 ksec) Purpose: Perigee Attitude 2d 05:12 7:30 PM Fri 18-Sep
2026:262:00:29:50Maneuver to 79.00000 58.00000 96.921 [2026:262:00:50:30] 2d 06:12 8:29 PM Fri 18-Sep
2026:262:00:55:00ER Obsid: 41129 (2 ksec) Purpose: Perigee Attitude 2d 06:37 8:55 PM Fri 18-Sep
2026:262:02:25:55Maneuver to 357.93000 2.23000 155.630 [2026:262:02:55:30] 2d 08:0810:25 PM Fri 18-Sep
2026:262:03:00:00ER Obsid: 41128 (1 ksec) Purpose: Perigee Attitude 2d 08:4211:00 PM Fri 18-Sep
2026:262:03:54:03Maneuver to 159.66287 53.48938 20.728 [2026:262:04:32:17] 2d 09:3711:54 PM Fri 18-Sep
2026:262:03:54:38Grating: NONE 2d 09:3711:54 PM Fri 18-Sep
2026:262:04:18:55RADMON Enable 2d 10:0112:18 AM Sat 19-Sep
2026:262:04:36:47Obsid: 32536 SI: ACIS-S (11 ksec) Target: SN2026sqf 2d 10:1912:36 AM Sat 19-Sep
2026:262:07:40:07Maneuver to 351.04221 58.83861 186.107 [2026:262:08:06:04] 2d 13:23 3:40 AM Sat 19-Sep
2026:262:08:10:34Obsid: 31389 SI: ACIS-I (2 ksec) Target: Cas A 2d 13:53 4:10 AM Sat 19-Sep
2026:262:08:43:54Maneuver to 350.82796 58.82413 186.383 [2026:262:08:48:25] 2d 14:26 4:43 AM Sat 19-Sep
2026:262:09:04:45Obsid: 31390 SI: ACIS-S (2 ksec) Target: Cas A 2d 14:47 5:04 AM Sat 19-Sep
2026:262:09:38:05Maneuver to 351.10630 58.83979 186.100 [2026:262:09:42:05] 2d 15:21 5:38 AM Sat 19-Sep
2026:262:09:46:35Obsid: 31391 SI: ACIS-S (2 ksec) Target: Cas A 2d 15:29 5:46 AM Sat 19-Sep
2026:262:10:00:00Comm pass on DSS-54 (duration 1:00) 2d 15:42 6:00 AM Sat 19-Sep
2026:262:10:19:55Maneuver to 4.65848 16.45066 160.994 [2026:262:10:41:14] 2d 16:02 6:19 AM Sat 19-Sep
2026:262:10:45:44Obsid: 30415 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 2d 16:28 6:45 AM Sat 19-Sep
2026:262:13:32:24Maneuver to 215.75244 63.98162 310.052 [2026:262:14:04:53] 2d 19:15 9:32 AM Sat 19-Sep
2026:262:14:09:23Obsid: 33222 SI: ACIS-S (15 ksec) Target: SDSS J142314.36 2d 19:5210:09 AM Sat 19-Sep
2026:262:18:00:00Comm pass on DSS-26 (duration 1:00) 2d 23:42 2:00 PM Sat 19-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP484430
P4GM---0.05300
P41GM---0.018.47
CXO: from snapshot at 2026:259:11:42:18 (- 6:34)
RadMon: DISABLED
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:17   P4GM: - 0:17   P41GM: - 0:17
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux56.65000012000> 30
2hr avg flux73.95000012000> 30
Orbital fluence1.9x106---2.0x109---
ACE data from 2026:259:18:00:00 (- 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 14/2100Z to 15/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 814 km/s at 15/1133 UTC. Total IMF reached 17 nT at 15/1716 UTC. The maximum southward component of Bz reached -13 nT at 15/1852. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 3 pfu at 14/2100Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 427 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to minor storm levels on days one and two (16 Sep, 17 Sep) and quiet to active levels on day three (18 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (16 Sep, 17 Sep, 18 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor