Page content updated: 2026:270:20:21:53 ( 4:21 PM Sun 27-Sep )

Key Snapshot and SOH Values (from current comm)
Obsid33435
Format2_NORM
RadMonENAB
CPE StatusNORM
RA351.130
Dec8.121
Roll244.062
Pitch165.46
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 2026:270:20:20:46 (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)
2026:270:09:58:59Maneuver to 359.22975 15.33181 209.996 [2026:270:10:27:34]-10:22 5:58 AM Sun 27-Sep
2026:270:10:00:00Comm pass on DSS-65 (duration 1:00)-10:21 6:00 AM Sun 27-Sep
2026:270:10:32:04Obsid: 33433 SI: ACIS-S (10 ksec) Target: SDSSJ235651.40+ - 9:49 6:32 AM Sun 27-Sep
2026:270:13:18:44Maneuver to 234.99437 17.88241 280.004 [2026:270:13:55:34]- 7:03 9:18 AM Sun 27-Sep
2026:270:14:00:04Obsid: 30380 SI: ACIS-I (14 ksec) Target: Abell 2108 - 6:2110:00 AM Sun 27-Sep
2026:270:16:55:00Comm pass on DSS-53 (duration 1:00)- 3:2612:55 PM Sun 27-Sep
2026:270:17:56:44Maneuver to 351.13173 8.12313 244.062 [2026:270:18:32:36]- 2:25 1:56 PM Sun 27-Sep
2026:270:18:37:06Obsid: 33435 SI: ACIS-I (10 ksec) Target: RMJ232434.6+080 - 1:44 2:37 PM Sun 27-Sep
2026:270:20:20:00Comm pass on DSS-26 (duration 0:40)- 0:01 4:20 PM Sun 27-Sep
2026:270:20:21:53--------------- NOW --------------- 0:00 4:21 PM Sun 27-Sep
2026:270:21:23:46Maneuver to 234.99214 17.88199 286.047 [2026:270:21:59:37] 1:01 5:23 PM Sun 27-Sep
2026:270:22:04:07Obsid: 33437 SI: ACIS-I (12 ksec) Target: Abell 2108 1:42 6:04 PM Sun 27-Sep
2026:271:01:21:07Load SEP2826A:CL271:0101 [2026:272:15:55:36] 4:59 9:21 PM Sun 27-Sep
2026:271:01:21:07Load SEP2826A:CL271:0101 [2026:272:15:55:36] 4:59 9:21 PM Sun 27-Sep
2026:271:01:24:07Maneuver to 352.19431 5.26916 254.560 [2026:271:02:00:26] 5:02 9:24 PM Sun 27-Sep
2026:271:02:06:32Obsid: 28340 SI: HRC-I (8 ksec) Target: G29-38 5:4410:06 PM Sun 27-Sep
2026:271:04:19:52Maneuver to 283.15288 0.69734 266.000 [2026:271:04:46:17] 7:5712:19 AM Mon 28-Sep
2026:271:04:50:47Obsid: 30053 SI: ACIS-S (30 ksec) Target: PSR J1852+0040 8:2812:50 AM Mon 28-Sep
2026:271:10:45:00Comm pass on DSS-56 (duration 1:00) 14:23 6:45 AM Mon 28-Sep
2026:271:13:19:07Maneuver to 352.19405 5.26792 255.897 [2026:271:13:45:31] 16:57 9:19 AM Mon 28-Sep
2026:271:13:35:00Comm pass on DSS-56 (duration 1:00) 17:13 9:35 AM Mon 28-Sep
2026:271:14:01:32Obsid: 33452 SI: HRC-I (9 ksec) Target: G29-38 17:3910:01 AM Mon 28-Sep
2026:271:16:31:32Maneuver to 313.76000 -40.19000 297.000 [2026:271:16:59:43] 20:0912:31 PM Mon 28-Sep
2026:271:16:59:43ER Obsid: 41111 (0 ksec) Purpose: Intermediate Attitud 20:3712:59 PM Mon 28-Sep
2026:271:17:00:04Maneuver to 165.46776 -61.02307 150.026 [2026:271:17:27:55] 20:38 1:00 PM Mon 28-Sep
2026:271:17:25:00Comm pass on DSS-53 (duration 1:00) 21:03 1:25 PM Mon 28-Sep
2026:271:17:32:25Obsid: 31547 SI: ACIS-I (10 ksec) Target: PSR J1101-6101 21:10 1:32 PM Mon 28-Sep
2026:271:20:19:05Maneuver to 20.88953 -4.47729 67.787 [2026:271:20:55:32] 23:57 4:19 PM Mon 28-Sep
2026:271:21:00:02Obsid: 31738 SI: ACIS-S (10 ksec) Target: ACT-CL J0123.5- 1d 00:38 5:00 PM Mon 28-Sep
2026:271:23:46:42Maneuver to 153.93751 -57.27458 139.525 [2026:272:00:22:25] 1d 03:24 7:46 PM Mon 28-Sep
2026:272:00:20:00Comm pass on DSS-23 (duration 1:00) 1d 03:58 8:20 PM Mon 28-Sep
2026:272:00:26:55Obsid: 30120 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 1d 04:05 8:26 PM Mon 28-Sep
2026:272:03:13:46Maneuver to 8.89221 -6.27806 23.687 [2026:272:03:49:20] 1d 06:5111:13 PM Mon 28-Sep
2026:272:03:17:20Grating: HETG 1d 06:5511:17 PM Mon 28-Sep
2026:272:03:19:46RADMON Disable 1d 06:5711:19 PM Mon 28-Sep
2026:272:03:53:50ER Obsid: 41110 (3 ksec) Purpose: Perigee Attitude 1d 07:3111:53 PM Mon 28-Sep
2026:272:06:07:43Maneuver to 145.42226 -46.34604 129.470 [2026:272:06:44:15] 1d 09:45 2:07 AM Tue 29-Sep
2026:272:06:48:45ER Obsid: 41109 (3 ksec) Purpose: Perigee Attitude 1d 10:26 2:48 AM Tue 29-Sep
2026:272:08:53:43Maneuver to 8.89221 -6.27806 22.170 [2026:272:09:30:15] 1d 12:31 4:53 AM Tue 29-Sep
2026:272:09:34:45ER Obsid: 41108 (3 ksec) Purpose: Perigee Attitude 1d 13:12 5:34 AM Tue 29-Sep
2026:272:10:38:17Maneuver to 91.90000 -39.60000 78.000 [2026:272:11:07:30] 1d 14:16 6:38 AM Tue 29-Sep
2026:272:11:12:00ER Obsid: 41107 (3 ksec) Purpose: Perigee Attitude 1d 14:50 7:12 AM Tue 29-Sep
2026:272:14:00:00Comm pass on DSS-26 (duration 0:45) 1d 17:3810:00 AM Tue 29-Sep
2026:272:14:26:33Maneuver to 10.66139 -4.08130 37.793 [2026:272:14:55:30] 1d 18:0410:26 AM Tue 29-Sep
2026:272:15:00:00ER Obsid: 41106 (1 ksec) Purpose: Perigee Attitude 1d 18:3811:00 AM Tue 29-Sep
2026:272:15:16:40Maneuver to 358.12158 2.03919 273.321 [2026:272:15:55:22] 1d 18:5411:16 AM Tue 29-Sep
2026:272:15:59:52ER Obsid: 41105 (1 ksec) Purpose: Perigee Attitude 1d 19:3711:59 AM Tue 29-Sep
2026:272:16:45:00Comm pass on DSS-65 (duration 0:55) 1d 20:2312:45 PM Tue 29-Sep
2026:272:16:45:00Load SEP2826A:CL272:1601 [2026:274:07:20:33] 1d 20:2312:45 PM Tue 29-Sep
2026:272:16:45:00Load SEP2826A:CL272:1601 [2026:274:07:20:33] 1d 20:2312:45 PM Tue 29-Sep
2026:272:17:13:20Maneuver to 267.20885 -20.33457 269.386 [2026:272:17:44:53] 1d 20:51 1:13 PM Tue 29-Sep
2026:272:17:13:54Grating: NONE 1d 20:52 1:13 PM Tue 29-Sep
2026:272:17:27:05RADMON Enable 1d 21:05 1:27 PM Tue 29-Sep
2026:272:17:49:23Obsid: 31094 SI: ACIS-S (10 ksec) Target: NGC 6440 1d 21:27 1:49 PM Tue 29-Sep
2026:272:20:36:03Maneuver to 352.19237 5.26974 259.243 [2026:272:21:07:00] 2d 00:14 4:36 PM Tue 29-Sep
2026:272:21:18:28Obsid: 33453 SI: HRC-I (7 ksec) Target: G29-38 2d 00:56 5:18 PM Tue 29-Sep
2026:272:23:15:08Maneuver to 308.49000 -41.91000 290.000 [2026:272:23:42:59] 2d 02:53 7:15 PM Tue 29-Sep
2026:272:23:42:59ER Obsid: 41104 (0 ksec) Purpose: Intermediate Attitud 2d 03:21 7:42 PM Tue 29-Sep
2026:272:23:43:20Maneuver to 165.47224 -61.02325 150.030 [2026:273:00:10:32] 2d 03:21 7:43 PM Tue 29-Sep
2026:273:00:15:02Obsid: 33461 SI: ACIS-I (10 ksec) Target: PSR J1101-6101 2d 03:53 8:15 PM Tue 29-Sep
2026:273:01:35:00Comm pass on DSS-26 (duration 1:00) 2d 05:13 9:35 PM Tue 29-Sep
2026:273:03:01:42Maneuver to 20.88938 -4.47985 64.504 [2026:273:03:37:59] 2d 06:3911:01 PM Tue 29-Sep
2026:273:03:42:29Obsid: 33464 SI: ACIS-S (10 ksec) Target: ACT-CL J0123.5- 2d 07:2011:42 PM Tue 29-Sep
2026:273:06:29:09Maneuver to 135.01566 -43.93221 108.017 [2026:273:07:03:40] 2d 10:07 2:29 AM Wed 30-Sep
2026:273:07:08:10Obsid: 29743 SI: ACIS-I (13 ksec) Target: [MWE2019] 1-435 2d 10:46 3:08 AM Wed 30-Sep
2026:273:10:20:00Comm pass on DSS-65 (duration 1:00) 2d 13:58 6:20 AM Wed 30-Sep
2026:273:10:44:50Maneuver to 20.88930 -4.48039 63.661 [2026:273:11:19:20] 2d 14:22 6:44 AM Wed 30-Sep
2026:273:11:23:50Obsid: 33465 SI: ACIS-S (10 ksec) Target: ACT-CL J0123.5- 2d 15:01 7:23 AM Wed 30-Sep
2026:273:14:10:30Maneuver to 135.01603 -43.93249 108.017 [2026:273:14:44:59] 2d 17:4810:10 AM Wed 30-Sep
2026:273:14:49:29Obsid: 33454 SI: ACIS-I (13 ksec) Target: [MWE2019] 1-435 2d 18:2710:49 AM Wed 30-Sep
2026:273:17:35:00Comm pass on DSS-54 (duration 1:00) 2d 21:13 1:35 PM Wed 30-Sep
2026:273:18:26:09Maneuver to 27.17182 5.98957 97.631 [2026:273:19:02:09] 2d 22:04 2:26 PM Wed 30-Sep
2026:273:19:06:39Obsid: 31672 SI: ACIS-I (12 ksec) Target: SDSS J014837.63 2d 22:44 3:06 PM Wed 30-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP637430
P4GM---0.04300
P41GM---0.018.47
CXO: from snapshot at 2026:270:20:20:46 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:16   P4GM: - 0:16   P41GM: - 0:14
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux10.85000012000> 30
2hr avg flux115000012000> 30
Orbital fluence6.8x105---2.0x109---
ACE data from 2026:270:20:05:00 (- 0:16)
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 25/2100Z to 26/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 514 km/s at 25/2333Z. Total IMF reached 7 nT at 26/1235Z. The maximum southward component of Bz reached 5 nT at 26/0419Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1259 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (27 Sep) and quiet levels on days two and three (28 Sep, 29 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 7 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 and two (27 Sep, 28 Sep) and expected to be very low with a chance for a C-class flares on day three (29 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor