Page content updated: 2026:258:10:04:01 ( 6:04 AM Tue 15-Sep )

Key Snapshot and SOH Values (from current comm)
Obsid33226
Format2_NORM
RadMonENAB
CPE StatusNORM
RA220.595
Dec-17.223
Roll246.999
Pitch51.07
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:258:10:02:36 (from current comm)

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)
2026:257:23:35:31Maneuver to 220.59975 -17.22419 248.000 [2026:258:00:10:58]-10:28 7:35 PM Mon 14-Sep
2026:258:00:15:28Obsid: 30194 SI: ACIS-S (11 ksec) Target: NGC5728 - 9:48 8:15 PM Mon 14-Sep
2026:258:03:18:48Maneuver to 348.13870 -8.64677 320.915 [2026:258:03:57:14]- 6:4511:18 PM Mon 14-Sep
2026:258:04:01:44Obsid: 33215 SI: ACIS-S (9 ksec) Target: SDSSJ231240.03- - 6:0212:01 AM Tue 15-Sep
2026:258:06:40:04Maneuver to 220.60023 -17.22316 247.000 [2026:258:07:18:32]- 3:23 2:40 AM Tue 15-Sep
2026:258:07:23:02Obsid: 33226 SI: ACIS-S (17 ksec) Target: NGC5728 - 2:40 3:23 AM Tue 15-Sep
2026:258:09:25:00Comm pass on DSS-34 (duration 0:50)- 0:39 5:25 AM Tue 15-Sep
2026:258:10:04:01--------------- NOW --------------- 0:00 6:04 AM Tue 15-Sep
2026:258:12:06:22Maneuver to 340.66348 -0.39317 262.000 [2026:258:12:43:49] 2:02 8:06 AM Tue 15-Sep
2026:258:12:48:19Obsid: 33218 SI: ACIS-S (9 ksec) Target: SDSSJ224240.98- 2:44 8:48 AM Tue 15-Sep
2026:258:15:23:39Load SEP1426A:CL258:1501 [2026:260:02:44:10] 5:1911:23 AM Tue 15-Sep
2026:258:15:23:39Load SEP1426A:CL258:1501 [2026:260:02:44:10] 5:1911:23 AM Tue 15-Sep
2026:258:15:26:39Maneuver to 222.80733 16.45464 279.896 [2026:258:16:03:38] 5:2211:26 AM Tue 15-Sep
2026:258:16:09:04Obsid: 32461 SI: HRC-I (9 ksec) Target: AT2024dky 6:0512:09 PM Tue 15-Sep
2026:258:18:47:24Maneuver to 267.17504 -27.13789 269.219 [2026:258:19:12:23] 8:43 2:47 PM Tue 15-Sep
2026:258:19:16:53Obsid: 30125 SI: ACIS-S (9 ksec) Target: SNR G1.9+0.3 9:12 3:16 PM Tue 15-Sep
2026:258:22:03:03Maneuver to 349.90000 -4.50000 295.449 [2026:258:22:32:10] 11:59 6:03 PM Tue 15-Sep
2026:258:22:06:38Grating: HETG 12:02 6:06 PM Tue 15-Sep
2026:258:22:08:41RADMON Disable 12:04 6:08 PM Tue 15-Sep
2026:258:22:36:40ER Obsid: 41142 (1 ksec) Purpose: Perigee Attitude 12:32 6:36 PM Tue 15-Sep
2026:258:23:16:40Maneuver to 354.00000 1.00000 170.448 [2026:258:23:55:30] 13:12 7:16 PM Tue 15-Sep
2026:258:23:20:00Comm pass on DSS-56 (duration 1:00) 13:15 7:20 PM Tue 15-Sep
2026:259:00:00:00ER Obsid: 41141 (1 ksec) Purpose: Perigee Attitude 13:55 8:00 PM Tue 15-Sep
2026:259:00:45:52Maneuver to 161.50000 49.00000 16.297 [2026:259:01:25:30] 14:41 8:45 PM Tue 15-Sep
2026:259:01:30:00ER Obsid: 41140 (3 ksec) Purpose: Perigee Attitude 15:25 9:30 PM Tue 15-Sep
2026:259:03:15:51Maneuver to 354.00000 1.00000 172.714 [2026:259:03:55:30] 17:1111:15 PM Tue 15-Sep
2026:259:04:00:00ER Obsid: 41139 (3 ksec) Purpose: Perigee Attitude 17:5512:00 AM Wed 16-Sep
2026:259:05:51:55Maneuver to 95.00000 45.00000 83.866 [2026:259:06:25:30] 19:47 1:51 AM Wed 16-Sep
2026:259:06:30:00ER Obsid: 41138 (3 ksec) Purpose: Perigee Attitude 20:25 2:30 AM Wed 16-Sep
2026:259:09:04:05Maneuver to 161.50000 49.00000 16.696 [2026:259:09:25:30] 23:00 5:04 AM Wed 16-Sep
2026:259:09:30:00ER Obsid: 41137 (2 ksec) Purpose: Perigee Attitude 23:25 5:30 AM Wed 16-Sep
2026:259:10:40:50Maneuver to 354.00000 1.00000 176.917 [2026:259:11:20:30] 1d 00:36 6:40 AM Wed 16-Sep
2026:259:10:45:00Comm pass on DSS-56 (duration 1:00) 1d 00:40 6:45 AM Wed 16-Sep
2026:259:11:25:00ER Obsid: 41136 (1 ksec) Purpose: Perigee Attitude 1d 01:20 7:25 AM Wed 16-Sep
2026:259:12:09:37Maneuver to 154.34911 47.01702 26.898 [2026:259:12:49:22] 1d 02:05 8:09 AM Wed 16-Sep
2026:259:12:10:12Grating: NONE 1d 02:06 8:10 AM Wed 16-Sep
2026:259:12:36:00RADMON Enable 1d 02:31 8:36 AM Wed 16-Sep
2026:259:12:53:52Obsid: 33217 SI: ACIS-S (10 ksec) Target: SDSSJ101730.98+ 1d 02:49 8:53 AM Wed 16-Sep
2026:259:15:48:52Maneuver to 350.78277 58.82630 183.630 [2026:259:16:16:10] 1d 05:4411:48 AM Wed 16-Sep
2026:259:16:20:40Obsid: 31386 SI: ACIS-I (2 ksec) Target: Cas A 1d 06:1612:20 PM Wed 16-Sep
2026:259:16:54:00Maneuver to 351.04620 58.83457 183.359 [2026:259:16:58:00] 1d 06:4912:54 PM Wed 16-Sep
2026:259:17:15:16Obsid: 31387 SI: ACIS-I (2 ksec) Target: Cas A 1d 07:11 1:15 PM Wed 16-Sep
2026:259:17:48:36Maneuver to 350.78237 58.82615 183.697 [2026:259:17:52:36] 1d 07:44 1:48 PM Wed 16-Sep
2026:259:17:57:06Obsid: 31388 SI: ACIS-I (2 ksec) Target: Cas A 1d 07:53 1:57 PM Wed 16-Sep
2026:259:18:30:31Maneuver to 4.66088 16.44687 150.170 [2026:259:18:52:33] 1d 08:26 2:30 PM Wed 16-Sep
2026:259:18:57:03Obsid: 30023 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 1d 08:53 2:57 PM Wed 16-Sep
2026:259:20:20:00Comm pass on DSS-53 (duration 1:00) 1d 10:15 4:20 PM Wed 16-Sep
2026:259:21:43:43Maneuver to 126.13740 24.61507 68.000 [2026:259:22:19:19] 1d 11:39 5:43 PM Wed 16-Sep
2026:259:22:23:49Obsid: 32933 SI: ACIS-S (12 ksec) Target: 5C 7.230 1d 12:19 6:23 PM Wed 16-Sep
2026:260:01:52:09Maneuver to 9.59742 -2.15591 91.215 [2026:260:02:28:47] 1d 15:48 9:52 PM Wed 16-Sep
2026:260:02:33:17Obsid: 31314 SI: ACIS-S (21 ksec) Target: 3CR 17 1d 16:2910:33 PM Wed 16-Sep
2026:260:08:28:37Load SEP1426A:CL260:0801 [2026:261:20:28:22] 1d 22:24 4:28 AM Thu 17-Sep
2026:260:08:28:37Load SEP1426A:CL260:0801 [2026:261:20:28:22] 1d 22:24 4:28 AM Thu 17-Sep
2026:260:08:31:37Maneuver to 126.13747 24.61397 68.000 [2026:260:09:08:16] 1d 22:27 4:31 AM Thu 17-Sep
2026:260:09:12:46Obsid: 33234 SI: ACIS-S (15 ksec) Target: 5C 7.230 1d 23:08 5:12 AM Thu 17-Sep
2026:260:10:00:00Comm pass on DSS-54 (duration 1:00) 1d 23:55 6:00 AM Thu 17-Sep
2026:260:13:34:26Maneuver to 4.66158 16.44865 154.994 [2026:260:14:10:10] 2d 03:30 9:34 AM Thu 17-Sep
2026:260:14:14:40Obsid: 33223 SI: ACIS-I (11 ksec) Target: MACS J0018.5+16 2d 04:1010:14 AM Thu 17-Sep
2026:260:17:18:00Maneuver to 215.74670 63.98218 311.057 [2026:260:17:50:40] 2d 07:13 1:18 PM Thu 17-Sep
2026:260:17:55:10Obsid: 29915 SI: ACIS-S (14 ksec) Target: SDSS J142314.36 2d 07:51 1:55 PM Thu 17-Sep
2026:260:21:00:00Comm pass on DSS-65 (duration 1:30) 2d 10:55 5:00 PM Thu 17-Sep
2026:260:21:48:30Maneuver to 4.66093 16.44865 154.994 [2026:260:22:21:10] 2d 11:44 5:48 PM Thu 17-Sep
2026:260:22:25:40Obsid: 33224 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 2d 12:21 6:25 PM Thu 17-Sep
2026:261:01:12:20Maneuver to 53.42605 -5.11739 89.224 [2026:261:01:40:48] 2d 15:08 9:12 PM Thu 17-Sep
2026:261:01:45:18Obsid: 29938 SI: ACIS-S (29 ksec) Target: NGC 1358 2d 15:41 9:45 PM Thu 17-Sep
2026:261:02:30:00Comm pass on DSS-23 (duration 1:00) 2d 16:2510:30 PM Thu 17-Sep
2026:261:10:00:00Comm pass on DSS-36 (duration 1:00) 2d 23:55 6:00 AM Fri 18-Sep
2026:261:10:03:38Maneuver to 9.59554 -2.15426 89.259 [2026:261:10:24:26] 2d 23:59 6:03 AM Fri 18-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP637430
P4GM---0.51300
P41GM---0.018.47
CXO: from snapshot at 2026:258:10:02:36 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:19   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux20605000012000> 30
2hr avg flux64505000012000> 30
Orbital fluence2.5x108---2.0x109---
ACE data from 2026:258:09:45:00 (- 0:19)
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 13/2100Z to 14/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 407 km/s at 13/2223 UTC. Total IMF reached 11 nT at 14/1124 UTC. The maximum southward component of Bz reached -07 nT at 14/1014 UTC. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 5 pfu at 14/1520Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 4652 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to minor storm levels on days one and two (15 Sep, 16 Sep) and quiet to active levels on day three (17 Sep). Protons have a slight chance of crossing threshold on days one, two, and three (15 Sep, 16 Sep, 17 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 13/2100Z to 14/2100Z: Solar activity has been at very low 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 low with a slight chance for an M-class flare on days one, two, and three (15 Sep, 16 Sep, 17 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor