Page content updated: 2026:177:22:08:01 ( 6:08 PM Fri 26-Jun )

Key Snapshot and SOH Values (Δt = - 2:57)
Obsid31384
Format2_NORM
RadMonENAB
CPE StatusNORM
RA350.837
Dec58.856
Roll116.018
Pitch77.01
Sim Z88727
Sim Focus-535
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128INAC
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131INAC
SCS 132ACT
SCS 133ACT
Snapshot from 2026:177:19:10:34 (Δt = - 2:57)

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)
2026:177:11:15:00Comm pass on DSS-54 (duration 1:00)-10:53 7:15 AM Fri 26-Jun
2026:177:12:45:01Load JUN2226A:CL177:1201 [2026:178:19:55:02]- 9:23 8:45 AM Fri 26-Jun
2026:177:12:45:01Load JUN2226A:CL177:1201 [2026:178:19:55:02]- 9:23 8:45 AM Fri 26-Jun
2026:177:12:53:10Maneuver to 124.68454 -25.49073 212.975 [2026:177:13:31:12]- 9:14 8:53 AM Fri 26-Jun
2026:177:12:53:44Grating: NONE- 9:14 8:53 AM Fri 26-Jun
2026:177:13:13:24RADMON Enable- 8:54 9:13 AM Fri 26-Jun
2026:177:13:35:42Obsid: 31483 SI: ACIS-S (16 ksec) Target: NGC2566 - 8:32 9:35 AM Fri 26-Jun
2026:177:18:14:02Maneuver to 350.84530 58.85669 116.010 [2026:177:19:04:54]- 3:53 2:14 PM Fri 26-Jun
2026:177:18:15:00Comm pass on DSS-53 (duration 1:00)- 3:53 2:15 PM Fri 26-Jun
2026:177:19:09:24Obsid: 31384 SI: ACIS-I (2 ksec) Target: Cas A - 2:58 3:09 PM Fri 26-Jun
2026:177:19:42:44Maneuver to 350.86910 58.83237 104.990 [2026:177:19:53:41]- 2:25 3:42 PM Fri 26-Jun
2026:177:20:03:35Obsid: 31385 SI: ACIS-S (2 ksec) Target: Cas A - 2:04 4:03 PM Fri 26-Jun
2026:177:20:36:55Maneuver to 280.33245 -4.92542 165.754 [2026:177:21:07:04]- 1:31 4:36 PM Fri 26-Jun
2026:177:21:11:34Obsid: 31596 SI: ACIS-S (16 ksec) Target: Kes 73 - 0:56 5:11 PM Fri 26-Jun
2026:177:22:08:01--------------- NOW --------------- 0:00 6:08 PM Fri 26-Jun
2026:178:01:05:00Comm pass on DSS-56 (duration 1:00) 2:56 9:05 PM Fri 26-Jun
2026:178:01:51:34Maneuver to 35.64435 42.30482 88.741 [2026:178:02:27:40] 3:43 9:51 PM Fri 26-Jun
2026:178:02:32:10Obsid: 29829 SI: ACIS-S (16 ksec) Target: SN 1986J 4:2410:32 PM Fri 26-Jun
2026:178:06:58:50Maneuver to 280.33370 -4.92512 166.977 [2026:178:07:34:58] 8:50 2:58 AM Sat 27-Jun
2026:178:07:39:28Obsid: 31597 SI: ACIS-S (14 ksec) Target: Kes 73 9:31 3:39 AM Sat 27-Jun
2026:178:10:10:00Comm pass on DSS-26 (duration 1:00) 12:01 6:10 AM Sat 27-Jun
2026:178:11:32:48Maneuver to 207.21454 26.60630 242.002 [2026:178:12:04:43] 13:24 7:32 AM Sat 27-Jun
2026:178:12:09:13Obsid: 31408 SI: ACIS-S (16 ksec) Target: A1795 14:01 8:09 AM Sat 27-Jun
2026:178:16:35:53Maneuver to 206.13413 -22.93876 254.367 [2026:178:16:58:13] 18:2712:35 PM Sat 27-Jun
2026:178:17:02:43Obsid: 32335 SI: ACIS-S (29 ksec) Target: LEDA 184063 18:54 1:02 PM Sat 27-Jun
2026:178:18:25:00Comm pass on DSS-53 (duration 1:00) 20:16 2:25 PM Sat 27-Jun
2026:179:01:13:03Load JUN2226A:CL179:0101 [2026:179:17:08:59] 1d 03:05 9:13 PM Sat 27-Jun
2026:179:01:13:03Load JUN2226A:CL179:0101 [2026:179:17:08:59] 1d 03:05 9:13 PM Sat 27-Jun
2026:179:01:16:03Maneuver to 269.31332 -26.24176 292.793 [2026:179:01:39:52] 1d 03:08 9:16 PM Sat 27-Jun
2026:179:01:44:22Obsid: 32403 SI: ACIS-I (10 ksec) Target: HEP G003.632-00 1d 03:36 9:44 PM Sat 27-Jun
2026:179:01:50:00Comm pass on DSS-65 (duration 1:00) 1d 03:41 9:50 PM Sat 27-Jun
2026:179:04:31:02Maneuver to 150.04011 2.28406 238.000 [2026:179:05:08:12] 1d 06:2312:31 AM Sun 28-Jun
2026:179:05:12:42Obsid: 32404 SI: ACIS-I (19 ksec) Target: Center of COSMO 1d 07:04 1:12 AM Sun 28-Jun
2026:179:10:00:00Comm pass on DSS-26 (duration 1:00) 1d 11:51 6:00 AM Sun 28-Jun
2026:179:10:37:42Maneuver to 267.16587 -27.14602 291.471 [2026:179:11:14:22] 1d 12:29 6:37 AM Sun 28-Jun
2026:179:11:18:52Obsid: 32406 SI: ACIS-S (15 ksec) Target: SNR G1.9+0.3 1d 13:10 7:18 AM Sun 28-Jun
2026:179:15:36:05Maneuver to 136.33000 -4.66000 232.084 [2026:179:16:14:24] 1d 17:2811:36 AM Sun 28-Jun
2026:179:15:39:39Grating: HETG 1d 17:3111:39 AM Sun 28-Jun
2026:179:15:40:00Comm pass on DSS-36 (duration 1:00) 1d 17:3111:40 AM Sun 28-Jun
2026:179:15:41:42RADMON Disable 1d 17:3311:41 AM Sun 28-Jun
2026:179:16:18:54ER Obsid: 41385 (2 ksec) Purpose: Perigee Attitude 1d 18:1012:18 PM Sun 28-Jun
2026:179:17:06:00Load JUN2926A:CL179:1701 [2026:181:04:30:02] 1d 18:57 1:06 PM Sun 28-Jun
2026:179:17:06:00Load JUN2926A:CL179:1701 [2026:181:04:30:02] 1d 18:57 1:06 PM Sun 28-Jun
2026:179:17:09:00Maneuver to 272.30000 -26.70000 306.218 [2026:179:17:48:16] 1d 19:00 1:09 PM Sun 28-Jun
2026:179:17:52:46ER Obsid: 41384 (3 ksec) Purpose: Perigee Attitude 1d 19:44 1:52 PM Sun 28-Jun
2026:179:18:42:46Maneuver to 284.20498 -21.44213 107.309 [2026:179:19:28:30] 1d 20:34 2:42 PM Sun 28-Jun
2026:179:19:33:00ER Obsid: 41383 (3 ksec) Purpose: Perigee Attitude 1d 21:24 3:33 PM Sun 28-Jun
2026:179:20:23:00Maneuver to 20.00000 20.70000 108.426 [2026:179:20:56:47] 1d 22:14 4:23 PM Sun 28-Jun
2026:179:21:01:17ER Obsid: 41382 (3 ksec) Purpose: Perigee Attitude 1d 22:53 5:01 PM Sun 28-Jun
2026:180:00:45:00Comm pass on DSS-26 (duration 1:00) 2d 02:36 8:45 PM Sun 28-Jun
2026:180:01:21:42Maneuver to 284.20498 -21.44213 107.689 [2026:180:01:55:30] 2d 03:13 9:21 PM Sun 28-Jun
2026:180:02:00:00ER Obsid: 41381 (0 ksec) Purpose: Perigee Attitude 2d 03:5110:00 PM Sun 28-Jun
2026:180:02:53:07Maneuver to 278.70000 -28.90000 9.436 [2026:180:03:25:30] 2d 04:4510:53 PM Sun 28-Jun
2026:180:03:30:00ER Obsid: 41380 (0 ksec) Purpose: Perigee Attitude 2d 05:2111:30 PM Sun 28-Jun
2026:180:03:48:44Maneuver to 81.37051 -46.00791 154.032 [2026:180:04:22:46] 2d 05:4011:48 PM Sun 28-Jun
2026:180:03:49:18Grating: NONE 2d 05:4111:49 PM Sun 28-Jun
2026:180:04:10:15RADMON Enable 2d 06:0212:10 AM Mon 29-Jun
2026:180:04:27:16Obsid: 29996 SI: ACIS-S (20 ksec) Target: ASASSN-14ko 2d 06:1912:27 AM Mon 29-Jun
2026:180:10:00:36Maneuver to 220.67314 -76.08843 296.601 [2026:180:10:23:57] 2d 11:52 6:00 AM Mon 29-Jun
2026:180:10:23:57ER Obsid: 41379 (0 ksec) Purpose: Intermediate Attitud 2d 12:15 6:23 AM Mon 29-Jun
2026:180:10:24:18Maneuver to 266.05502 -29.77025 298.821 [2026:180:10:49:14] 2d 12:16 6:24 AM Mon 29-Jun
2026:180:10:35:00Comm pass on DSS-26 (duration 1:00) 2d 12:26 6:35 AM Mon 29-Jun
2026:180:10:53:44Obsid: 30123 SI: ACIS-I (15 ksec) Target: Snake 2d 12:45 6:53 AM Mon 29-Jun
2026:180:15:03:44Maneuver to 220.67314 -76.08843 296.380 [2026:180:15:28:38] 2d 16:5511:03 AM Mon 29-Jun
2026:180:15:28:38ER Obsid: 41378 (0 ksec) Purpose: Perigee Attitude 2d 17:2011:28 AM Mon 29-Jun
2026:180:15:28:59Maneuver to 153.82608 -57.29973 229.436 [2026:180:15:46:21] 2d 17:2011:28 AM Mon 29-Jun
2026:180:15:52:05Obsid: 30118 SI: ACIS-I (30 ksec) Target: PSR J1015-5719 2d 17:4411:52 AM Mon 29-Jun
2026:180:19:00:00Comm pass on DSS-56 (duration 1:00) 2d 20:51 3:00 PM Mon 29-Jun

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP407930
P4GM---0.06300
P41GM---0.008.47
CXO: from snapshot at 2026:177:19:10:34 (- 2:57)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:18   P4GM: - 0:20   P41GM: - 0:18
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux18.45000012000> 30
2hr avg flux215000012000> 30
Orbital fluence7.2x105---2.0x109---
ACE data from 2026:177:21:50:00 (- 0:18)
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 unsettled levels for the past 24 hours. Solar wind speed reached a peak of 656 km/s at 26/1743Z. Total IMF reached 5 nT at 26/0745Z. The maximum southward component of Bz reached -4 nT at 26/1448Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1636 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (27 Jun, 28 Jun) and quiet levels on day three (29 Jun).
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 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (27 Jun, 28 Jun, 29 Jun).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor