Page content updated: 2026:271:15:39:00 ( 11:39 AM Mon 28-Sep )

Key Snapshot and SOH Values (Δt = - 1:07)
Obsid33452
Format1_NORM
RadMonENAB
CPE StatusNORM
RA352.193
Dec5.267
Roll255.897
Pitch166.89
Sim Z-46727
Sim Focus-715
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:271:14:31:22 (Δt = - 1:07)

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)
2026:271:04:19:52Maneuver to 283.15288 0.69734 266.000 [2026:271:04:46:17]-11:1912:19 AM Mon 28-Sep
2026:271:04:50:47Obsid: 30053 SI: ACIS-S (30 ksec) Target: PSR J1852+0040 -10:4812:50 AM Mon 28-Sep
2026:271:10:45:00Comm pass on DSS-56 (duration 1:00)- 4:54 6:45 AM Mon 28-Sep
2026:271:13:19:07Maneuver to 352.19405 5.26792 255.897 [2026:271:13:45:31]- 2:19 9:19 AM Mon 28-Sep
2026:271:13:35:00Comm pass on DSS-56 (duration 1:00)- 2:04 9:35 AM Mon 28-Sep
2026:271:14:01:32Obsid: 33452 SI: HRC-I (9 ksec) Target: G29-38 - 1:3710:01 AM Mon 28-Sep
2026:271:15:39:00--------------- NOW --------------- 0:0011:39 AM Mon 28-Sep
2026:271:16:31:32Maneuver to 313.76000 -40.19000 297.000 [2026:271:16:59:43] 0:5212:31 PM Mon 28-Sep
2026:271:16:59:43ER Obsid: 41111 (0 ksec) Purpose: Intermediate Attitud 1:2012:59 PM Mon 28-Sep
2026:271:17:00:04Maneuver to 165.46776 -61.02307 150.026 [2026:271:17:27:55] 1:21 1:00 PM Mon 28-Sep
2026:271:17:25:00Comm pass on DSS-53 (duration 1:00) 1:46 1:25 PM Mon 28-Sep
2026:271:17:32:25Obsid: 31547 SI: ACIS-I (10 ksec) Target: PSR J1101-6101 1:53 1:32 PM Mon 28-Sep
2026:271:20:19:05Maneuver to 20.88953 -4.47729 67.787 [2026:271:20:55:32] 4:40 4:19 PM Mon 28-Sep
2026:271:21:00:02Obsid: 31738 SI: ACIS-S (10 ksec) Target: ACT-CL J0123.5- 5:21 5:00 PM Mon 28-Sep
2026:271:23:46:42Maneuver to 153.93751 -57.27458 139.525 [2026:272:00:22:25] 8:07 7:46 PM Mon 28-Sep
2026:272:00:20:00Comm pass on DSS-23 (duration 1:00) 8:41 8:20 PM Mon 28-Sep
2026:272:00:26:55Obsid: 30120 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 8:47 8:26 PM Mon 28-Sep
2026:272:03:13:46Maneuver to 8.89221 -6.27806 23.687 [2026:272:03:49:20] 11:3411:13 PM Mon 28-Sep
2026:272:03:17:20Grating: HETG 11:3811:17 PM Mon 28-Sep
2026:272:03:19:46RADMON Disable 11:4011:19 PM Mon 28-Sep
2026:272:03:53:50ER Obsid: 41110 (3 ksec) Purpose: Perigee Attitude 12:1411:53 PM Mon 28-Sep
2026:272:06:07:43Maneuver to 145.42226 -46.34604 129.470 [2026:272:06:44:15] 14:28 2:07 AM Tue 29-Sep
2026:272:06:48:45ER Obsid: 41109 (3 ksec) Purpose: Perigee Attitude 15:09 2:48 AM Tue 29-Sep
2026:272:08:53:43Maneuver to 8.89221 -6.27806 22.170 [2026:272:09:30:15] 17:14 4:53 AM Tue 29-Sep
2026:272:09:34:45ER Obsid: 41108 (3 ksec) Purpose: Perigee Attitude 17:55 5:34 AM Tue 29-Sep
2026:272:10:38:17Maneuver to 91.90000 -39.60000 78.000 [2026:272:11:07:30] 18:59 6:38 AM Tue 29-Sep
2026:272:11:12:00ER Obsid: 41107 (3 ksec) Purpose: Perigee Attitude 19:33 7:12 AM Tue 29-Sep
2026:272:14:00:00Comm pass on DSS-26 (duration 0:45) 22:2110:00 AM Tue 29-Sep
2026:272:14:26:33Maneuver to 10.66139 -4.08130 37.793 [2026:272:14:55:30] 22:4710:26 AM Tue 29-Sep
2026:272:15:00:00ER Obsid: 41106 (1 ksec) Purpose: Perigee Attitude 23:2111:00 AM Tue 29-Sep
2026:272:15:16:40Maneuver to 358.12158 2.03919 273.321 [2026:272:15:55:22] 23:3711:16 AM Tue 29-Sep
2026:272:15:59:52ER Obsid: 41105 (1 ksec) Purpose: Perigee Attitude 1d 00:2011:59 AM Tue 29-Sep
2026:272:16:45:00Comm pass on DSS-65 (duration 0:55) 1d 01:0612:45 PM Tue 29-Sep
2026:272:16:45:00Load SEP2826A:CL272:1601 [2026:274:07:20:33] 1d 01:0612:45 PM Tue 29-Sep
2026:272:16:45:00Load SEP2826A:CL272:1601 [2026:274:07:20:33] 1d 01:0612:45 PM Tue 29-Sep
2026:272:17:13:20Maneuver to 267.20885 -20.33457 269.386 [2026:272:17:44:53] 1d 01:34 1:13 PM Tue 29-Sep
2026:272:17:13:54Grating: NONE 1d 01:34 1:13 PM Tue 29-Sep
2026:272:17:27:05RADMON Enable 1d 01:48 1:27 PM Tue 29-Sep
2026:272:17:49:23Obsid: 31094 SI: ACIS-S (10 ksec) Target: NGC 6440 1d 02:10 1:49 PM Tue 29-Sep
2026:272:20:36:03Maneuver to 352.19237 5.26974 259.243 [2026:272:21:07:00] 1d 04:57 4:36 PM Tue 29-Sep
2026:272:21:18:28Obsid: 33453 SI: HRC-I (7 ksec) Target: G29-38 1d 05:39 5:18 PM Tue 29-Sep
2026:272:23:15:08Maneuver to 308.49000 -41.91000 290.000 [2026:272:23:42:59] 1d 07:36 7:15 PM Tue 29-Sep
2026:272:23:42:59ER Obsid: 41104 (0 ksec) Purpose: Intermediate Attitud 1d 08:03 7:42 PM Tue 29-Sep
2026:272:23:43:20Maneuver to 165.47224 -61.02325 150.030 [2026:273:00:10:32] 1d 08:04 7:43 PM Tue 29-Sep
2026:273:00:15:02Obsid: 33461 SI: ACIS-I (10 ksec) Target: PSR J1101-6101 1d 08:36 8:15 PM Tue 29-Sep
2026:273:01:35:00Comm pass on DSS-26 (duration 1:00) 1d 09:56 9:35 PM Tue 29-Sep
2026:273:03:01:42Maneuver to 20.88938 -4.47985 64.504 [2026:273:03:37:59] 1d 11:2211:01 PM Tue 29-Sep
2026:273:03:42:29Obsid: 33464 SI: ACIS-S (10 ksec) Target: ACT-CL J0123.5- 1d 12:0311:42 PM Tue 29-Sep
2026:273:06:29:09Maneuver to 135.01566 -43.93221 108.017 [2026:273:07:03:40] 1d 14:50 2:29 AM Wed 30-Sep
2026:273:07:08:10Obsid: 29743 SI: ACIS-I (13 ksec) Target: [MWE2019] 1-435 1d 15:29 3:08 AM Wed 30-Sep
2026:273:10:20:00Comm pass on DSS-65 (duration 1:00) 1d 18:41 6:20 AM Wed 30-Sep
2026:273:10:44:50Maneuver to 20.88930 -4.48039 63.661 [2026:273:11:19:20] 1d 19:05 6:44 AM Wed 30-Sep
2026:273:11:23:50Obsid: 33465 SI: ACIS-S (10 ksec) Target: ACT-CL J0123.5- 1d 19:44 7:23 AM Wed 30-Sep
2026:273:14:10:30Maneuver to 135.01603 -43.93249 108.017 [2026:273:14:44:59] 1d 22:3110:10 AM Wed 30-Sep
2026:273:14:49:29Obsid: 33454 SI: ACIS-I (13 ksec) Target: [MWE2019] 1-435 1d 23:1010:49 AM Wed 30-Sep
2026:273:17:35:00Comm pass on DSS-54 (duration 1:00) 2d 01:56 1:35 PM Wed 30-Sep
2026:273:18:26:09Maneuver to 27.17182 5.98957 97.631 [2026:273:19:02:09] 2d 02:47 2:26 PM Wed 30-Sep
2026:273:19:06:39Obsid: 31672 SI: ACIS-I (12 ksec) Target: SDSS J014837.63 2d 03:27 3:06 PM Wed 30-Sep
2026:273:22:26:39Maneuver to 135.01622 -43.93264 108.017 [2026:273:23:02:39] 2d 06:47 6:26 PM Wed 30-Sep
2026:273:23:07:09Obsid: 33455 SI: ACIS-I (13 ksec) Target: [MWE2019] 1-435 2d 07:28 7:07 PM Wed 30-Sep
2026:274:02:43:49Maneuver to 27.17181 5.98943 97.412 [2026:274:03:19:49] 2d 11:0410:43 PM Wed 30-Sep
2026:274:03:00:00Comm pass on DSS-23 (duration 1:00) 2d 11:2111:00 PM Wed 30-Sep
2026:274:03:24:19Obsid: 31681 SI: ACIS-I (12 ksec) Target: SDSS J014837.63 2d 11:4511:24 PM Wed 30-Sep
2026:274:06:44:19Maneuver to 135.01629 -43.93269 108.017 [2026:274:07:20:18] 2d 15:05 2:44 AM Thu 01-Oct
2026:274:07:24:48Obsid: 30096 SI: ACIS-I (13 ksec) Target: [MWE2019] 1-435 2d 15:45 3:24 AM Thu 01-Oct
2026:274:08:21:50Load SEP2826A:CL274:0801 [2026:275:23:00:50] 2d 16:42 4:21 AM Thu 01-Oct
2026:274:08:21:50Load SEP2826A:CL274:0801 [2026:275:23:00:50] 2d 16:42 4:21 AM Thu 01-Oct
2026:274:10:00:00Comm pass on DSS-36 (duration 1:00) 2d 18:21 6:00 AM Thu 01-Oct
2026:274:11:01:28Maneuver to 27.17178 5.98933 97.200 [2026:274:11:37:27] 2d 19:22 7:01 AM Thu 01-Oct
2026:274:11:41:57Obsid: 31950 SI: ACIS-I (12 ksec) Target: SDSS J014837.63 2d 20:02 7:41 AM Thu 01-Oct
2026:274:15:01:57Maneuver to 135.01635 -43.93274 108.017 [2026:274:15:37:56] 2d 23:2211:01 AM Thu 01-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield407917250
HRC MCP331430
P4GM---0.05300
P41GM---0.018.47
CXO: from snapshot at 2026:271:14:31:22 (- 1:07)
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 flux10.55000012000> 30
2hr avg flux9.835000012000> 30
Orbital fluence1.2x106---2.0x109---
ACE data from 2026:271:15:20:00 (- 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 26/2100Z to 27/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 477 km/s at 26/2142Z. Total IMF reached 5 nT at 26/2103Z. The maximum southward component of Bz reached -4 nT at 27/0618Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3060 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (28 Sep, 29 Sep, 30 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity has been at 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 day one (28 Sep) and expected to be very low with a chance for a C-class flares on days two and three (29 Sep, 30 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor