Page content updated: 2026:263:06:19:02 ( 2:19 AM Sun 20-Sep )

Key Snapshot and SOH Values (Δt = - 2:27)
Obsid41127
Format2_NORM
RadMonENAB
CPE StatusNORM
RA1.628
Dec19.970
Roll162.996
Pitch158.51
Sim Z92671
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 2026:263:03:51:18 (Δt = - 2:27)

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)
2026:262:18:19:23Maneuver to 4.65771 16.45058 160.995 [2026:262:18:51:51]-11:59 2:19 PM Sat 19-Sep
2026:262:18:56:21Obsid: 33227 SI: ACIS-I (8 ksec) Target: MACS J0018.5+16 -11:22 2:56 PM Sat 19-Sep
2026:262:21:18:01Maneuver to 159.66488 53.49013 21.393 [2026:262:21:52:46]- 9:01 5:18 PM Sat 19-Sep
2026:262:21:57:16Obsid: 33233 SI: ACIS-S (11 ksec) Target: SN2026sqf - 8:21 5:57 PM Sat 19-Sep
2026:263:01:00:36Maneuver to 4.65824 16.44901 156.122 [2026:263:01:35:21]- 5:18 9:00 PM Sat 19-Sep
2026:263:01:39:51Obsid: 33228 SI: ACIS-I (7 ksec) Target: MACS J0018.5+16 - 4:39 9:39 PM Sat 19-Sep
2026:263:02:55:00Comm pass on DSS-23 (duration 1:00)- 3:2410:55 PM Sat 19-Sep
2026:263:03:44:51Maneuver to 316.00000 26.00000 241.995 [2026:263:04:13:37]- 2:3411:44 PM Sat 19-Sep
2026:263:04:13:37ER Obsid: 41127 (0 ksec) Purpose: Intermediate Attitud - 2:0512:13 AM Sun 20-Sep
2026:263:04:13:58Maneuver to 267.17649 -27.14044 268.964 [2026:263:04:41:44]- 2:0512:13 AM Sun 20-Sep
2026:263:04:46:14Obsid: 33225 SI: ACIS-S (23 ksec) Target: SNR G1.9+0.3 - 1:3212:46 AM Sun 20-Sep
2026:263:06:19:02--------------- NOW --------------- 0:00 2:19 AM Sun 20-Sep
2026:263:11:00:00Comm pass on DSS-54 (duration 1:00) 4:40 7:00 AM Sun 20-Sep
2026:263:11:00:00Load SEP1426A:CL263:1101 [2026:264:01:05:49] 4:40 7:00 AM Sun 20-Sep
2026:263:11:00:00Load SEP1426A:CL263:1101 [2026:264:01:05:49] 4:40 7:00 AM Sun 20-Sep
2026:263:11:09:34Maneuver to 316.00000 26.00000 242.340 [2026:263:11:37:18] 4:50 7:09 AM Sun 20-Sep
2026:263:11:37:18ER Obsid: 41126 (0 ksec) Purpose: Perigee Attitude 5:18 7:37 AM Sun 20-Sep
2026:263:11:37:39Maneuver to 4.65621 16.44924 157.030 [2026:263:12:06:19] 5:18 7:37 AM Sun 20-Sep
2026:263:12:10:49Obsid: 33229 SI: ACIS-I (13 ksec) Target: MACS J0018.5+16 5:51 8:10 AM Sun 20-Sep
2026:263:15:47:29Maneuver to 131.98197 26.50327 69.000 [2026:263:16:23:47] 9:2811:47 AM Sun 20-Sep
2026:263:16:28:17Obsid: 33216 SI: ACIS-S (10 ksec) Target: SDSSJ084755.63+ 10:0912:28 PM Sun 20-Sep
2026:263:19:14:57Maneuver to 9.59304 -2.15417 84.522 [2026:263:19:52:59] 12:55 3:14 PM Sun 20-Sep
2026:263:19:57:29Obsid: 33232 SI: ACIS-S (18 ksec) Target: 3CR 17 13:38 3:57 PM Sun 20-Sep
2026:263:20:05:00Comm pass on DSS-24 (duration 1:00) 13:45 4:05 PM Sun 20-Sep
2026:264:01:02:49Load SEP2126A:CL264:0101 [2026:265:12:15:01] 18:43 9:02 PM Sun 20-Sep
2026:264:01:02:49Load SEP2126A:CL264:0101 [2026:265:12:15:01] 18:43 9:02 PM Sun 20-Sep
2026:264:01:05:49Maneuver to 117.19056 -67.77350 110.046 [2026:264:01:40:52] 18:46 9:05 PM Sun 20-Sep
2026:264:01:45:22Obsid: 30051 SI: ACIS-S (11 ksec) Target: EXO 0748-676 19:26 9:45 PM Sun 20-Sep
2026:264:02:45:00Comm pass on DSS-23 (duration 1:00) 20:2510:45 PM Sun 20-Sep
2026:264:04:53:45Maneuver to 1.60000 -2.13624 69.963 [2026:264:05:28:47] 22:3412:53 AM Mon 21-Sep
2026:264:04:57:19Grating: HETG 22:3812:57 AM Mon 21-Sep
2026:264:04:59:23RADMON Disable 22:4012:59 AM Mon 21-Sep
2026:264:05:33:17ER Obsid: 41125 (3 ksec) Purpose: Perigee Attitude 23:14 1:33 AM Mon 21-Sep
2026:264:06:23:17Maneuver to 353.67000 -2.85400 294.694 [2026:264:07:04:17] 1d 00:04 2:23 AM Mon 21-Sep
2026:264:07:08:47ER Obsid: 41124 (6 ksec) Purpose: Perigee Attitude 1d 00:49 3:08 AM Mon 21-Sep
2026:264:08:48:47Maneuver to 265.00000 -44.00000 267.222 [2026:264:09:19:27] 1d 02:29 4:48 AM Mon 21-Sep
2026:264:09:23:57ER Obsid: 41123 (3 ksec) Purpose: Perigee Attitude 1d 03:04 5:23 AM Mon 21-Sep
2026:264:10:35:00Comm pass on DSS-34 (duration 1:00) 1d 04:15 6:35 AM Mon 21-Sep
2026:264:18:28:29Maneuver to 49.93859 41.55412 118.382 [2026:264:19:18:29] 1d 12:09 2:28 PM Mon 21-Sep
2026:264:18:29:04Grating: NONE 1d 12:10 2:29 PM Mon 21-Sep
2026:264:19:04:42RADMON Enable 1d 12:45 3:04 PM Mon 21-Sep
2026:264:19:22:59Obsid: 31413 SI: ACIS-I (10 ksec) Target: Perseus Cluster 1d 13:03 3:22 PM Mon 21-Sep
2026:264:19:55:00Comm pass on DSS-56 (duration 1:00) 1d 13:35 3:55 PM Mon 21-Sep
2026:264:22:09:39Maneuver to 9.59132 -2.15315 81.697 [2026:264:22:37:26] 1d 15:50 6:09 PM Mon 21-Sep
2026:264:22:41:56Obsid: 31712 SI: ACIS-S (13 ksec) Target: 3CR 17 1d 16:22 6:41 PM Mon 21-Sep
2026:265:00:45:00Comm pass on DSS-24 (duration 1:00) 1d 18:25 8:45 PM Mon 21-Sep
2026:265:02:18:36Maneuver to 129.34406 19.32673 74.747 [2026:265:02:56:16] 1d 19:5910:18 PM Mon 21-Sep
2026:265:03:00:46Obsid: 31230 SI: ACIS-S (12 ksec) Target: SDSS J083721.87 1d 20:4111:00 PM Mon 21-Sep
2026:265:06:20:46Maneuver to 255.33767 51.84702 270.012 [2026:265:06:56:16] 2d 00:01 2:20 AM Tue 22-Sep
2026:265:07:00:46Obsid: 31435 SI: ACIS-S (10 ksec) Target: PG 1700+518 2d 00:41 3:00 AM Tue 22-Sep
2026:265:09:47:26Maneuver to 50.02486 41.43443 118.511 [2026:265:10:17:10] 2d 03:28 5:47 AM Tue 22-Sep
2026:265:10:21:40Obsid: 31414 SI: ACIS-I (10 ksec) Target: Perseus Cluster 2d 04:02 6:21 AM Tue 22-Sep
2026:265:12:15:00Comm pass on DSS-65 (duration 1:00) 2d 05:55 8:15 AM Tue 22-Sep
2026:265:13:05:20Load SEP2126A:CL265:1301 [2026:267:00:48:29] 2d 06:46 9:05 AM Tue 22-Sep
2026:265:13:05:20Load SEP2126A:CL265:1301 [2026:267:00:48:29] 2d 06:46 9:05 AM Tue 22-Sep
2026:265:13:08:20Maneuver to 9.58607 -2.15364 70.000 [2026:265:13:37:52] 2d 06:49 9:08 AM Tue 22-Sep
2026:265:13:42:22Obsid: 33445 SI: ACIS-S (16 ksec) Target: 3CR 17 2d 07:23 9:42 AM Tue 22-Sep
2026:265:17:30:00Comm pass on DSS-53 (duration 1:00) 2d 11:10 1:30 PM Tue 22-Sep
2026:265:18:09:02Maneuver to 117.18430 -67.77276 107.541 [2026:265:18:43:03] 2d 11:50 2:09 PM Tue 22-Sep
2026:265:18:47:33Obsid: 33436 SI: ACIS-S (23 ksec) Target: EXO 0748-676 2d 12:28 2:47 PM Tue 22-Sep
2026:266:01:22:33Maneuver to 20.88966 -4.47748 70.001 [2026:266:01:54:32] 2d 19:03 9:22 PM Tue 22-Sep
2026:266:01:59:02Obsid: 31744 SI: ACIS-S (15 ksec) Target: ACT-CL J0123.5- 2d 19:40 9:59 PM Tue 22-Sep
2026:266:02:20:00Comm pass on DSS-24 (duration 1:00) 2d 20:0010:20 PM Tue 22-Sep
2026:266:06:09:02Maneuver to 168.02254 -60.63271 162.037 [2026:266:06:45:22] 2d 23:50 2:09 AM Wed 23-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP637430
P4GM---0.06300
P41GM---0.018.47
CXO: from snapshot at 2026:263:03:51:18 (- 2:27)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:21   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux9.345000012000> 30
2hr avg flux10.85000012000> 30
Orbital fluence1.2x106---2.0x109---
ACE data from 2026:263:06:00:00 (- 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 18/2100Z to 19/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 450 km/s at 19/1005Z. Total IMF reached 7 nT at 19/0604Z. The maximum southward component of Bz reached -5 nT at 19/0331Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 984 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (20 Sep, 21 Sep, 22 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance for a C-class flare on days one, two, and three (20 Sep, 21 Sep, 22 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor