Page content updated: 2026:291:17:57:01 ( 1:57 PM Sun 18-Oct )

Key Snapshot and SOH Values (Δt = - 6:10)
Obsid33486
Format2_NORM
RadMonENAB
CPE StatusNORM
RA4.605
Dec30.980
Roll222.446
Pitch152.47
Sim Z75623
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 2026:291:11:46:51 (Δt = - 6:10)

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)
2026:291:09:10:58Maneuver to 50.08094 41.42855 135.247 [2026:291:09:39:05]- 8:46 5:10 AM Sun 18-Oct
2026:291:09:43:35Obsid: 33491 SI: ACIS-S (5 ksec) Target: Perseus Cluster - 8:13 5:43 AM Sun 18-Oct
2026:291:10:50:00Comm pass on DSS-54 (duration 1:00)- 7:07 6:50 AM Sun 18-Oct
2026:291:11:06:55Maneuver to 4.60116 30.97866 222.447 [2026:291:11:33:19]- 6:50 7:06 AM Sun 18-Oct
2026:291:11:37:49Obsid: 33486 SI: ACIS-S (5 ksec) Target: V* PW And - 6:19 7:37 AM Sun 18-Oct
2026:291:13:09:29Maneuver to 280.32485 -4.94355 276.999 [2026:291:13:40:53]- 4:47 9:09 AM Sun 18-Oct
2026:291:13:45:23Obsid: 33487 SI: ACIS-S (10 ksec) Target: Kes 73 - 4:11 9:45 AM Sun 18-Oct
2026:291:16:40:23Maneuver to 351.84253 8.76862 274.265 [2026:291:17:07:31]- 1:1612:40 PM Sun 18-Oct
2026:291:17:12:01Obsid: 33480 SI: ACIS-S (9 ksec) Target: NGC7674_s1 - 0:45 1:12 PM Sun 18-Oct
2026:291:17:57:01--------------- NOW --------------- 0:00 1:57 PM Sun 18-Oct
2026:291:18:00:00Comm pass on DSS-23 (duration 1:00) 0:02 2:00 PM Sun 18-Oct
2026:291:19:50:21Maneuver to 280.32410 -4.94283 267.499 [2026:291:20:17:36] 1:53 3:50 PM Sun 18-Oct
2026:291:20:22:06Obsid: 33488 SI: ACIS-S (12 ksec) Target: Kes 73 2:25 4:22 PM Sun 18-Oct
2026:291:23:49:06Load OCT1926A:CL291:2301 [2026:293:10:42:01] 5:52 7:49 PM Sun 18-Oct
2026:291:23:49:06Load OCT1926A:CL291:2301 [2026:293:10:42:01] 5:52 7:49 PM Sun 18-Oct
2026:291:23:52:06Maneuver to 20.80000 -54.50000 357.172 [2026:292:00:24:02] 5:55 7:52 PM Sun 18-Oct
2026:292:00:00:00Comm pass on DSS-24 (duration 0:45) 6:02 8:00 PM Sun 18-Oct
2026:292:00:24:02ER Obsid: 41054 (0 ksec) Purpose: Intermediate Attitud 6:27 8:24 PM Sun 18-Oct
2026:292:00:24:23Maneuver to 32.49868 0.82186 48.370 [2026:292:00:51:09] 6:27 8:24 PM Sun 18-Oct
2026:292:00:55:39Obsid: 31701 SI: ACIS-I (11 ksec) Target: CHQ J0210+0050 6:58 8:55 PM Sun 18-Oct
2026:292:03:58:59Maneuver to 156.52351 -57.82654 123.500 [2026:292:04:34:11] 10:0111:58 PM Sun 18-Oct
2026:292:04:02:33Grating: HETG 10:0512:02 AM Mon 19-Oct
2026:292:04:38:41Obsid: 31541 SI: ACIS-S (13 ksec) Target: WR21a 10:4112:38 AM Mon 19-Oct
2026:292:08:23:41Maneuver to 32.49842 0.82101 48.370 [2026:292:08:58:54] 14:26 4:23 AM Mon 19-Oct
2026:292:08:27:16Grating: NONE 14:30 4:27 AM Mon 19-Oct
2026:292:09:03:24Obsid: 33521 SI: ACIS-I (11 ksec) Target: CHQ J0210+0050 15:06 5:03 AM Mon 19-Oct
2026:292:10:50:00Comm pass on DSS-53 (duration 1:00) 16:52 6:50 AM Mon 19-Oct
2026:292:12:06:44Maneuver to 156.52524 -57.82730 123.125 [2026:292:12:41:57] 18:09 8:06 AM Mon 19-Oct
2026:292:12:10:18Grating: HETG 18:13 8:10 AM Mon 19-Oct
2026:292:12:46:27Obsid: 31542 SI: ACIS-S (13 ksec) Target: WR21a 18:49 8:46 AM Mon 19-Oct
2026:292:16:23:07Maneuver to 32.49807 0.81983 48.370 [2026:292:16:58:19] 22:2612:23 PM Mon 19-Oct
2026:292:16:26:41Grating: NONE 22:2912:26 PM Mon 19-Oct
2026:292:17:02:49Obsid: 33522 SI: ACIS-I (11 ksec) Target: CHQ J0210+0050 23:05 1:02 PM Mon 19-Oct
2026:292:18:30:00Comm pass on DSS-56 (duration 0:40) 1d 00:32 2:30 PM Mon 19-Oct
2026:292:20:06:09Maneuver to 156.52689 -57.82806 122.754 [2026:292:20:41:23] 1d 02:09 4:06 PM Mon 19-Oct
2026:292:20:09:44Grating: HETG 1d 02:12 4:09 PM Mon 19-Oct
2026:292:20:45:53Obsid: 33516 SI: ACIS-S (13 ksec) Target: WR21a 1d 02:48 4:45 PM Mon 19-Oct
2026:293:00:30:53Maneuver to 310.02823 -59.39523 288.604 [2026:293:00:55:52] 1d 06:33 8:30 PM Mon 19-Oct
2026:293:00:55:52ER Obsid: 41053 (0 ksec) Purpose: Intermediate Attitud 1d 06:58 8:55 PM Mon 19-Oct
2026:293:00:56:13Maneuver to 329.75729 18.21144 269.252 [2026:293:01:25:45] 1d 06:59 8:56 PM Mon 19-Oct
2026:293:00:56:48Grating: NONE 1d 06:59 8:56 PM Mon 19-Oct
2026:293:01:30:15Obsid: 33449 SI: ACIS-S (20 ksec) Target: SN 2016coi 1d 07:33 9:30 PM Mon 19-Oct
2026:293:02:00:00Comm pass on DSS-23 (duration 1:00) 1d 08:0210:00 PM Mon 19-Oct
2026:293:07:11:49Maneuver to 20.76641 10.73155 263.065 [2026:293:07:34:00] 1d 13:14 3:11 AM Tue 20-Oct
2026:293:07:15:23Grating: HETG 1d 13:18 3:15 AM Tue 20-Oct
2026:293:07:17:26RADMON Disable 1d 13:20 3:17 AM Tue 20-Oct
2026:293:07:38:30ER Obsid: 41052 (3 ksec) Purpose: Perigee Attitude 1d 13:41 3:38 AM Tue 20-Oct
2026:293:08:28:30Maneuver to 252.26232 -0.14311 283.663 [2026:293:09:07:53] 1d 14:31 4:28 AM Tue 20-Oct
2026:293:09:12:23ER Obsid: 41051 (3 ksec) Purpose: Perigee Attitude 1d 15:15 5:12 AM Tue 20-Oct
2026:293:10:02:23Maneuver to 20.76641 10.73155 263.889 [2026:293:10:41:47] 1d 16:05 6:02 AM Tue 20-Oct
2026:293:10:46:17ER Obsid: 41050 (3 ksec) Purpose: Perigee Attitude 1d 16:49 6:46 AM Tue 20-Oct
2026:293:11:33:17Load OCT1926A:CL293:1101 [2026:294:21:03:07] 1d 17:36 7:33 AM Tue 20-Oct
2026:293:11:33:17Load OCT1926A:CL293:1101 [2026:294:21:03:07] 1d 17:36 7:33 AM Tue 20-Oct
2026:293:11:36:17Maneuver to 28.46853 12.17715 117.102 [2026:293:12:19:34] 1d 17:39 7:36 AM Tue 20-Oct
2026:293:12:24:04ER Obsid: 41049 (3 ksec) Purpose: Perigee Attitude 1d 18:27 8:24 AM Tue 20-Oct
2026:293:14:31:45Maneuver to 78.91529 45.74986 109.956 [2026:293:14:55:30] 1d 20:3410:31 AM Tue 20-Oct
2026:293:15:00:00ER Obsid: 41048 (3 ksec) Purpose: Perigee Attitude 1d 21:0211:00 AM Tue 20-Oct
2026:293:17:25:54Maneuver to 206.09692 38.19595 358.632 [2026:293:17:55:30] 1d 23:28 1:25 PM Tue 20-Oct
2026:293:18:00:00ER Obsid: 41047 (3 ksec) Purpose: Perigee Attitude 2d 00:02 2:00 PM Tue 20-Oct
2026:293:20:19:14Maneuver to 304.87127 38.75636 272.230 [2026:293:20:46:42] 2d 02:22 4:19 PM Tue 20-Oct
2026:293:20:25:00Comm pass on DSS-23 (duration 1:30) 2d 02:27 4:25 PM Tue 20-Oct
2026:293:20:28:54RADMON Enable 2d 02:31 4:28 PM Tue 20-Oct
2026:293:20:51:12Obsid: 31525 SI: ACIS-S (30 ksec) Target: V444 Cyg 2d 02:54 4:51 PM Tue 20-Oct
2026:294:01:40:00Comm pass on DSS-26 (duration 1:00) 2d 07:42 9:40 PM Tue 20-Oct
2026:294:05:11:12Maneuver to 355.25952 -3.11370 294.922 [2026:294:05:38:28] 2d 11:14 1:11 AM Wed 21-Oct
2026:294:05:38:28ER Obsid: 41046 (0 ksec) Purpose: Intermediate Attitud 2d 11:41 1:38 AM Wed 21-Oct
2026:294:05:38:49Maneuver to 27.14515 5.99068 15.001 [2026:294:06:09:00] 2d 11:41 1:38 AM Wed 21-Oct
2026:294:05:39:23Grating: NONE 2d 11:42 1:39 AM Wed 21-Oct
2026:294:06:13:30Obsid: 31255 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 2d 12:16 2:13 AM Wed 21-Oct
2026:294:09:00:10Maneuver to 15.15086 -16.55167 338.453 [2026:294:09:20:50] 2d 15:03 5:00 AM Wed 21-Oct
2026:294:09:20:50ER Obsid: 41045 (0 ksec) Purpose: Intermediate Attitud 2d 15:23 5:20 AM Wed 21-Oct
2026:294:09:21:11Maneuver to 266.53872 -28.87224 265.428 [2026:294:09:54:04] 2d 15:24 5:21 AM Wed 21-Oct
2026:294:09:58:34Obsid: 31466 SI: ACIS-I (15 ksec) Target: CMZ Molecular C 2d 16:01 5:58 AM Wed 21-Oct
2026:294:10:00:00Comm pass on DSS-56 (duration 1:00) 2d 16:02 6:00 AM Wed 21-Oct
2026:294:14:08:34Maneuver to 15.15086 -16.55167 338.134 [2026:294:14:41:27] 2d 20:1110:08 AM Wed 21-Oct
2026:294:14:41:27ER Obsid: 41044 (0 ksec) Purpose: Perigee Attitude 2d 20:4410:41 AM Wed 21-Oct
2026:294:14:41:48Maneuver to 27.14441 5.99009 14.959 [2026:294:15:02:30] 2d 20:4410:41 AM Wed 21-Oct
2026:294:15:07:00Obsid: 31676 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 2d 21:0911:07 AM Wed 21-Oct
2026:294:15:15:00Comm pass on DSS-53 (duration 1:00) 2d 21:1711:15 AM Wed 21-Oct
2026:294:17:53:40Maneuver to 15.15086 -16.55167 337.920 [2026:294:18:14:26] 2d 23:56 1:53 PM Wed 21-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP637430
P4GM---0.05300
P41GM---0.008.47
CXO: from snapshot at 2026:291:11:46:51 (- 6:10)
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 flux10.15000012000> 30
2hr avg flux15.45000012000> 30
Orbital fluence7.7x105---2.0x109---
ACE data from 2026:291:17:40:00 (- 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 16/2100Z to 17/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 771 km/s at 16/2359Z. Total IMF reached 8 nT at 17/1451Z. The maximum southward component of Bz reached -7 nT at 17/1742Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 818 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (18 Oct), quiet to active levels on day two (19 Oct) and quiet to minor storm levels on day three (20 Oct).
Solar ActivityAnalysis of Solar Active Regions and Activity from 16/2100Z to 17/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (18 Oct, 19 Oct, 20 Oct).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor