Page content updated: 2026:114:20:38:00 ( 4:38 PM Fri 24-Apr )

Key Snapshot and SOH Values (from current comm)
Obsid31734
Format2_NORM
RadMonENAB
CPE StatusNORM
RA166.142
Dec38.250
Roll229.509
Pitch113.19
Sim Z72104
Sim Focus-467
HETG angle77.59
LETG angle4.09
SCS 107INAC
SCS 128ACT
SCS 129INAC
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132INAC
SCS 133ACT
Snapshot from 2026:114:20:36:30 (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)
2026:114:09:08:29Maneuver to 90.96374 -35.95071 237.987 [2026:114:09:39:02]-11:29 5:08 AM Fri 24-Apr
2026:114:09:43:32Obsid: 32313 SI: ACIS-I (18 ksec) Target: DESI J090.9854- -10:54 5:43 AM Fri 24-Apr
2026:114:10:50:00Comm pass on DSS-26 (duration 1:00)- 9:48 6:50 AM Fri 24-Apr
2026:114:14:43:32Maneuver to 166.14345 38.25084 229.508 [2026:114:15:17:08]- 5:5410:43 AM Fri 24-Apr
2026:114:14:47:06Grating: LETG- 5:5010:47 AM Fri 24-Apr
2026:114:15:21:38Obsid: 31734 SI: ACIS-S (39 ksec) Target: MKN421 - 5:1611:21 AM Fri 24-Apr
2026:114:19:55:00Comm pass on DSS-56 (duration 1:00)- 0:43 3:55 PM Fri 24-Apr
2026:114:19:55:00Load APR2026A:CL114:1901 [2026:116:06:55:44]- 0:43 3:55 PM Fri 24-Apr
2026:114:19:55:00Load APR2026A:CL114:1901 [2026:116:06:55:44]- 0:43 3:55 PM Fri 24-Apr
2026:114:20:38:00--------------- NOW --------------- 0:00 4:38 PM Fri 24-Apr
2026:115:02:22:43Maneuver to 125.06196 59.73137 253.003 [2026:115:02:41:18] 5:4410:22 PM Fri 24-Apr
2026:115:02:26:18Grating: NONE 5:4810:26 PM Fri 24-Apr
2026:115:02:49:03Obsid: 32307 SI: ACIS-S (10 ksec) Target: SDSSJ082015.61+ 6:1110:49 PM Fri 24-Apr
2026:115:03:00:00Comm pass on DSS-65 (duration 1:00) 6:2211:00 PM Fri 24-Apr
2026:115:05:35:43Maneuver to 196.04582 -5.55118 243.997 [2026:115:06:06:49] 8:57 1:35 AM Sat 25-Apr
2026:115:06:11:19Obsid: 32314 SI: ACIS-S (10 ksec) Target: NGC4941 9:33 2:11 AM Sat 25-Apr
2026:115:08:57:59Maneuver to 124.01424 -23.81162 258.535 [2026:115:09:26:28] 12:19 4:57 AM Sat 25-Apr
2026:115:09:30:58Obsid: 31083 SI: ACIS-S (17 ksec) Target: NVSS J081604-23 12:52 5:30 AM Sat 25-Apr
2026:115:10:15:00Comm pass on DSS-26 (duration 1:00) 13:37 6:15 AM Sat 25-Apr
2026:115:14:14:18Maneuver to 196.04583 -5.55119 244.048 [2026:115:14:42:47] 17:3610:14 AM Sat 25-Apr
2026:115:14:47:17Obsid: 32315 SI: ACIS-S (10 ksec) Target: NGC4941 18:0910:47 AM Sat 25-Apr
2026:115:17:33:57Maneuver to 199.10519 29.11053 195.993 [2026:115:17:57:53] 20:55 1:33 PM Sat 25-Apr
2026:115:17:37:31Grating: LETG 20:59 1:37 PM Sat 25-Apr
2026:115:18:16:22Obsid: 29530 SI: HRC-I (2 ksec) Target: HZ43 21:38 2:16 PM Sat 25-Apr
2026:115:18:49:42Maneuver to 152.26488 -38.38054 277.783 [2026:115:19:25:42] 22:11 2:49 PM Sat 25-Apr
2026:115:18:50:30Grating: NONE 22:12 2:50 PM Sat 25-Apr
2026:115:19:30:12Obsid: 29867 SI: ACIS-S (26 ksec) Target: AM1006-380 22:52 3:30 PM Sat 25-Apr
2026:115:23:00:00Comm pass on DSS-56 (duration 1:00) 1d 02:22 7:00 PM Sat 25-Apr
2026:116:02:00:00Comm pass on DSS-54 (duration 1:00) 1d 05:2210:00 PM Sat 25-Apr
2026:116:02:44:33Maneuver to 205.50000 -13.40000 269.397 [2026:116:03:09:23] 1d 06:0610:44 PM Sat 25-Apr
2026:116:02:48:07Grating: HETG 1d 06:1010:48 PM Sat 25-Apr
2026:116:02:50:11RADMON Disable 1d 06:1210:50 PM Sat 25-Apr
2026:116:03:13:53ER Obsid: 41532 (5 ksec) Purpose: Perigee Attitude 1d 06:3511:13 PM Sat 25-Apr
2026:116:06:19:04Maneuver to 85.54700 -18.28200 242.034 [2026:116:06:55:30] 1d 09:41 2:19 AM Sun 26-Apr
2026:116:07:00:00ER Obsid: 41531 (5 ksec) Purpose: Perigee Attitude 1d 10:22 3:00 AM Sun 26-Apr
2026:116:09:10:45Load APR2026A:CL116:0901 [2026:117:01:19:40] 1d 12:32 5:10 AM Sun 26-Apr
2026:116:09:10:45Load APR2026A:CL116:0901 [2026:117:01:19:40] 1d 12:32 5:10 AM Sun 26-Apr
2026:116:09:59:09Maneuver to 154.80000 -4.10000 256.712 [2026:116:10:25:30] 1d 13:21 5:59 AM Sun 26-Apr
2026:116:10:30:00ER Obsid: 41530 (3 ksec) Purpose: Perigee Attitude 1d 13:52 6:30 AM Sun 26-Apr
2026:116:12:32:34Maneuver to 104.08700 -26.81587 247.000 [2026:116:12:55:30] 1d 15:54 8:32 AM Sun 26-Apr
2026:116:13:00:00ER Obsid: 41529 (3 ksec) Purpose: Perigee Attitude 1d 16:22 9:00 AM Sun 26-Apr
2026:116:14:10:00Comm pass on DSS-56 (duration 1:00) 1d 17:3210:10 AM Sun 26-Apr
2026:116:15:33:03Maneuver to 152.26500 -38.38010 277.006 [2026:116:15:53:21] 1d 18:5511:33 AM Sun 26-Apr
2026:116:15:33:38Grating: NONE 1d 18:5511:33 AM Sun 26-Apr
2026:116:15:35:33RADMON Enable 1d 18:5711:35 AM Sun 26-Apr
2026:116:16:00:48Obsid: 32308 SI: ACIS-S (22 ksec) Target: AM1006-380 1d 19:2212:00 PM Sun 26-Apr
2026:116:22:07:28Maneuver to 202.10650 -31.59174 326.065 [2026:116:22:28:30] 2d 01:29 6:07 PM Sun 26-Apr
2026:116:22:33:00Obsid: 32316 SI: ACIS-I (10 ksec) Target: Abell 3558 SE 2d 01:55 6:33 PM Sun 26-Apr
2026:117:00:15:00Comm pass on DSS-56 (duration 1:00) 2d 03:37 8:15 PM Sun 26-Apr
2026:117:01:16:40Load APR2726A:CL117:0101 [2026:118:11:59:24] 2d 04:38 9:16 PM Sun 26-Apr
2026:117:01:16:40Load APR2726A:CL117:0101 [2026:118:11:59:24] 2d 04:38 9:16 PM Sun 26-Apr
2026:117:01:19:40Maneuver to 17.89498 -38.08300 160.326 [2026:117:01:55:28] 2d 04:41 9:19 PM Sun 26-Apr
2026:117:01:59:58Obsid: 30228 SI: ACIS-S (12 ksec) Target: NGC 424 2d 05:21 9:59 PM Sun 26-Apr
2026:117:05:19:58Maneuver to 220.59292 -17.27660 53.998 [2026:117:05:58:12] 2d 08:41 1:19 AM Mon 27-Apr
2026:117:06:02:42Obsid: 30189 SI: ACIS-S (11 ksec) Target: NGC5728 2d 09:24 2:02 AM Mon 27-Apr
2026:117:09:14:22Maneuver to 17.89833 -38.08426 157.020 [2026:117:09:52:43] 2d 12:36 5:14 AM Mon 27-Apr
2026:117:09:57:13Obsid: 32321 SI: ACIS-S (18 ksec) Target: NGC 424 2d 13:19 5:57 AM Mon 27-Apr
2026:117:11:00:00Comm pass on DSS-26 (duration 1:00) 2d 14:22 7:00 AM Mon 27-Apr
2026:117:14:57:13Maneuver to 220.59277 -17.27989 54.998 [2026:117:15:35:35] 2d 18:1910:57 AM Mon 27-Apr
2026:117:15:40:05Obsid: 30199 SI: ACIS-S (15 ksec) Target: NGC5728 2d 19:0211:40 AM Mon 27-Apr
2026:117:17:45:00Comm pass on DSS-34 (duration 1:00) 2d 21:07 1:45 PM Mon 27-Apr
2026:117:20:05:05Maneuver to 335.87032 -50.28284 122.844 [2026:117:20:36:46] 2d 23:27 4:05 PM Mon 27-Apr

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP637430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:114:20:36:30 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:18   P4GM: - 0:18   P41GM: - 0:18
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux7.115000012000> 30
2hr avg flux8.475000012000> 30
Orbital fluence6.0x105---2.0x109---
ACE data from 2026:114:20:25:00 (- 0:13)
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 22/2100Z to 23/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 496 km/s at 23/0352Z. Total IMF reached 5 nT at 22/2101Z. The maximum southward component of Bz reached -5 nT at 22/2218Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 4058 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (24 Apr), quiet to active levels on day two (25 Apr) and quiet to minor storm levels on day three (26 Apr). Protons have a slight chance of crossing threshold on days one, two, and three (24 Apr, 25 Apr, 26 Apr).
Solar ActivityAnalysis of Solar Active Regions and Activity from 22/2100Z to 23/2100Z: 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 (24 Apr, 25 Apr, 26 Apr).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor