Page content updated: 2026:137:20:12:00 ( 4:12 PM Sun 17-May )

Key Snapshot and SOH Values (Δt = - 9:06)
Obsid41480
Format2_NORM
RadMonDISA
CPE StatusNORM
RA245.004
Dec-21.702
Roll78.971
Pitch169.11
Sim Z-99616
Sim Focus-467
HETG angle5.59
LETG angle76.09
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130INAC
RadMonDISA
SCS 131ACT
SCS 132ACT
SCS 133INAC
Snapshot from 2026:137:11:05:35 (Δt = - 9:06)

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)
2026:137:09:08:35Maneuver to 233.40000 -14.46399 185.025 [2026:137:09:38:53]-11:03 5:08 AM Sun 17-May
2026:137:09:12:09Grating: HETG-10:59 5:12 AM Sun 17-May
2026:137:09:14:12RADMON Disable-10:57 5:14 AM Sun 17-May
2026:137:09:43:23ER Obsid: 41481 (0 ksec) Purpose: Perigee Attitude -10:28 5:43 AM Sun 17-May
2026:137:09:56:04Load MAY1826A:CL137:0901 [2026:138:22:45:02]-10:15 5:56 AM Sun 17-May
2026:137:09:56:04Load MAY1826A:CL137:0901 [2026:138:22:45:02]-10:15 5:56 AM Sun 17-May
2026:137:09:59:04Maneuver to 245.00000 -21.70000 78.970 [2026:137:10:34:33]-10:12 5:59 AM Sun 17-May
2026:137:10:10:00Comm pass on DSS-24 (duration 1:00)-10:02 6:10 AM Sun 17-May
2026:137:10:39:03ER Obsid: 41480 (3 ksec) Purpose: Perigee Attitude - 9:32 6:39 AM Sun 17-May
2026:137:13:19:53Maneuver to 4.37000 -14.74500 123.486 [2026:137:13:55:30]- 6:52 9:19 AM Sun 17-May
2026:137:14:00:00ER Obsid: 41479 (3 ksec) Purpose: Perigee Attitude - 6:1210:00 AM Sun 17-May
2026:137:16:19:53Maneuver to 245.00000 -21.70000 78.967 [2026:137:16:55:30]- 3:5212:19 PM Sun 17-May
2026:137:17:00:00ER Obsid: 41478 (3 ksec) Purpose: Perigee Attitude - 3:12 1:00 PM Sun 17-May
2026:137:17:53:20Maneuver to 5.00000 -14.40000 127.000 [2026:137:18:29:02]- 2:18 1:53 PM Sun 17-May
2026:137:18:33:32ER Obsid: 41477 (0 ksec) Purpose: Perigee Attitude - 1:38 2:33 PM Sun 17-May
2026:137:19:08:59Maneuver to 135.15368 20.92355 248.000 [2026:137:19:56:05]- 1:03 3:08 PM Sun 17-May
2026:137:19:09:34Grating: NONE- 1:02 3:09 PM Sun 17-May
2026:137:19:39:41RADMON Enable- 0:32 3:39 PM Sun 17-May
2026:137:20:00:35Obsid: 30394 SI: ACIS-S (15 ksec) Target: ZwCl 0857.9+210 - 0:11 4:00 PM Sun 17-May
2026:137:20:12:00--------------- NOW --------------- 0:00 4:12 PM Sun 17-May
2026:137:20:45:00Comm pass on DSS-54 (duration 1:00) 0:33 4:45 PM Sun 17-May
2026:138:00:10:35Maneuver to 220.59428 -17.22479 258.491 [2026:138:00:42:13] 3:58 8:10 PM Sun 17-May
2026:138:00:46:43Obsid: 30191 SI: ACIS-S (14 ksec) Target: NGC5728 4:34 8:46 PM Sun 17-May
2026:138:02:05:00Comm pass on DSS-26 (duration 1:00) 5:5310:05 PM Sun 17-May
2026:138:04:40:03Maneuver to 135.15002 20.92361 254.658 [2026:138:05:11:33] 8:2812:40 AM Mon 18-May
2026:138:05:16:03Obsid: 32355 SI: ACIS-S (15 ksec) Target: ZwCl 0857.9+210 9:04 1:16 AM Mon 18-May
2026:138:09:26:03Maneuver to 220.59425 -17.22440 258.375 [2026:138:09:57:32] 13:14 5:26 AM Mon 18-May
2026:138:10:02:02Obsid: 32352 SI: ACIS-S (12 ksec) Target: NGC5728 13:50 6:02 AM Mon 18-May
2026:138:10:15:00Comm pass on DSS-24 (duration 1:00) 14:03 6:15 AM Mon 18-May
2026:138:13:22:02Maneuver to 135.14995 20.92388 254.693 [2026:138:13:53:32] 17:10 9:22 AM Mon 18-May
2026:138:13:58:02Obsid: 31883 SI: ACIS-S (10 ksec) Target: ZwCl 0857.9+210 17:46 9:58 AM Mon 18-May
2026:138:16:44:42Maneuver to 220.59420 -17.22396 258.257 [2026:138:17:16:11] 20:3212:44 PM Mon 18-May
2026:138:17:20:41Obsid: 32353 SI: ACIS-S (12 ksec) Target: NGC5728 21:08 1:20 PM Mon 18-May
2026:138:20:40:41Maneuver to 150.28602 2.19426 250.208 [2026:138:21:07:41] 1d 00:28 4:40 PM Mon 18-May
2026:138:21:12:11Obsid: 30247 SI: ACIS-I (29 ksec) Target: Center of COSMO 1d 01:00 5:12 PM Mon 18-May
2026:138:21:15:00Comm pass on DSS-54 (duration 1:00) 1d 01:03 5:15 PM Mon 18-May
2026:138:23:03:42Load MAY1826A:CL138:2301 [2026:140:11:45:01] 1d 02:51 7:03 PM Mon 18-May
2026:138:23:03:42Load MAY1826A:CL138:2301 [2026:140:11:45:01] 1d 02:51 7:03 PM Mon 18-May
2026:139:01:20:00Comm pass on DSS-65 (duration 1:00) 1d 05:08 9:20 PM Mon 18-May
2026:139:05:25:15Maneuver to 220.59473 -17.22559 258.031 [2026:139:05:52:15] 1d 09:13 1:25 AM Tue 19-May
2026:139:05:56:45Obsid: 30206 SI: ACIS-S (14 ksec) Target: NGC5728 1d 09:44 1:56 AM Tue 19-May
2026:139:09:50:05Maneuver to 239.15298 41.89056 176.492 [2026:139:10:22:17] 1d 13:38 5:50 AM Tue 19-May
2026:139:09:55:00Comm pass on DSS-26 (duration 1:00) 1d 13:43 5:55 AM Tue 19-May
2026:139:10:26:47Obsid: 29879 SI: ACIS-S (48 ksec) Target: SDSS J155636.40 1d 14:14 6:26 AM Tue 19-May
2026:139:18:00:00Comm pass on DSS-34 (duration 1:00) 1d 21:48 2:00 PM Tue 19-May
2026:139:23:47:14Maneuver to 239.00000 -15.90000 148.758 [2026:140:00:12:22] 2d 03:35 7:47 PM Tue 19-May
2026:139:23:50:48Grating: HETG 2d 03:38 7:50 PM Tue 19-May
2026:139:23:52:51RADMON Disable 2d 03:40 7:52 PM Tue 19-May
2026:140:00:16:52ER Obsid: 41476 (3 ksec) Purpose: Perigee Attitude 2d 04:04 8:16 PM Tue 19-May
2026:140:00:50:00Comm pass on DSS-54 (duration 1:00) 2d 04:38 8:50 PM Tue 19-May
2026:140:01:06:52Maneuver to 232.69300 -20.10300 273.118 [2026:140:01:45:57] 2d 04:54 9:06 PM Tue 19-May
2026:140:01:50:27ER Obsid: 41475 (3 ksec) Purpose: Perigee Attitude 2d 05:38 9:50 PM Tue 19-May
2026:140:02:40:27Maneuver to 148.10000 7.60000 250.091 [2026:140:03:11:03] 2d 06:2810:40 PM Tue 19-May
2026:140:03:15:33ER Obsid: 41474 (3 ksec) Purpose: Perigee Attitude 2d 07:0311:15 PM Tue 19-May
2026:140:07:54:55Maneuver to 232.69300 -20.10300 271.981 [2026:140:08:25:30] 2d 11:42 3:54 AM Wed 20-May
2026:140:08:30:00ER Obsid: 41473 (3 ksec) Purpose: Perigee Attitude 2d 12:18 4:30 AM Wed 20-May
2026:140:09:20:00Maneuver to 239.00000 -15.90000 153.041 [2026:140:09:57:53] 2d 13:08 5:20 AM Wed 20-May
2026:140:10:02:23ER Obsid: 41472 (0 ksec) Purpose: Perigee Attitude 2d 13:50 6:02 AM Wed 20-May
2026:140:11:45:00Comm pass on DSS-26 (duration 1:00) 2d 15:33 7:45 AM Wed 20-May
2026:140:12:09:57Load MAY1826A:CL140:1201 [2026:141:21:20:02] 2d 15:57 8:09 AM Wed 20-May
2026:140:12:09:57Load MAY1826A:CL140:1201 [2026:141:21:20:02] 2d 15:57 8:09 AM Wed 20-May
2026:140:12:12:57Maneuver to 4.82629 59.11176 66.646 [2026:140:12:50:59] 2d 16:00 8:12 AM Wed 20-May
2026:140:12:30:28RADMON Enable 2d 16:18 8:30 AM Wed 20-May
2026:140:12:55:29Obsid: 30086 SI: ACIS-S (21 ksec) Target: TV Cassiopeia 2d 16:43 8:55 AM Wed 20-May
2026:140:18:45:29Maneuver to 278.40515 -10.58575 105.003 [2026:140:19:18:13] 2d 22:33 2:45 PM Wed 20-May
2026:140:18:49:03Grating: NONE 2d 22:37 2:49 PM Wed 20-May
2026:140:19:27:54Obsid: 31395 SI: HRC-I (10 ksec) Target: SNR G21.5-0.9 2d 23:15 3:27 PM Wed 20-May

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP535430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:137:11:05:35 (- 9:06)
RadMon: DISABLED
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:17   P4GM: - 0:14   P41GM: - 0:17
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux97.75000012000> 30
2hr avg flux1055000012000> 30
Orbital fluence1.9x105---2.0x109---
ACE data from 2026:137:20:00:00 (- 0:12)
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 15/2100Z to 16/2100Z: The geomagnetic field has been at quiet to major storm levels for the past 24 hours. Solar wind speed reached a peak of 823 km/s at 16/0336Z. Total IMF reached 15 nT at 15/2213Z. The maximum southward component of Bz reached -11 nT at 15/2149Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1420 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (17 May), unsettled to minor storm levels on day two (18 May) and quiet to active levels on day three (19 May).
Solar ActivityAnalysis of Solar Active Regions and Activity from 15/2100Z to 16/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 6 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (17 May, 18 May, 19 May).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor