3-day Schedule

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This page shows 3 days of the Chandra schedule, either side of today, and the total science exposure time for these observations is 5 days and 9 hours. The size of the circles indicate the exposure time, and the color shows whether the observation has been done, is running now, or is in the future; the same colors are used in the table below. For repeated observations it can be hard to make out what is going on, since the circles overlap! The shaded regions trace the Milky Way galaxy. The points are plotted in the Equatorial coordinate system, using the Aitoff projection.

TargetObject typeExposure timeStartInstrumentJoint withTurnaroundConstraintsRight AscensionDeclinationConstellation
AT2025aarmUnidentified6 hours and 52 minutes3 days agoACIS-Sn/aImmediateTime Critical04h 32m 12.4s-05° 22' 39.6"Eri
Center of COSMOS-WebUnidentified3 hours and 51 minutes3 days agoACIS-In/aNonen/a09h 59m 39.9s+02° 18' 30.7"Sex
PSZ2G144.99-24.64Cluster of Galaxies2 hours and 42 minutes3 days agoACIS-In/aNonen/a02h 28m 45.4s+34° 01' 37.2"Tri
1eRASS J085257.4+270015Unidentified4 hours and 7 minutes3 days agoACIS-Sn/aNonen/a08h 52m 57.6s+27° 00' 13.0"Cnc
NGC 1140Active Galaxy Nucleus2 hours and 45 minutes2 days agoACIS-Sn/aNonen/a02h 54m 33.5s-10° 01' 43.1"Eri
VV PupCataclysmic Binary7 hours and 36 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a08h 15m 06.8s-19° 03' 17.8"Pup
NGC 1140Active Galaxy Nucleus3 hours and 16 minutes2 days agoACIS-Sn/aNonen/a02h 54m 33.5s-10° 01' 43.1"Eri
IC5273Emission-line galaxy5 hours and 30 minutes2 days agoACIS-Sn/aNonen/a22h 59m 26.7s-37° 42' 10.4"Gru
SDSS J014837.63+060020.0Quasar4 hours and 28 minutes2 days agoACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
CAL-ER (41978)50 minutes1 day agon/an/an/an/a18h 15m 60.0s-37° 00' 00.0"n/a
CAL-ER (41971)16 minutes and 40 seconds22 hours agon/an/an/an/a03h 09m 12.0s+14° 54' 00.0"n/a
NGC3511Emission-line galaxy4 hours and 26 minutes21 hours agoACIS-Sn/aNonen/a11h 03m 23.8s-23° 05' 11.8"Crt
1RXS J031639.0+155435X-ray Source2 hours and 46 minutes16 hours agoACIS-Sn/aNonen/a03h 16m 39.5s+15° 54' 35.1"Ari
NGC3511Emission-line galaxy5 hours12 hours agoACIS-Sn/aNonen/a11h 03m 23.8s-23° 05' 11.8"Crt
NGC 1140Active Galaxy Nucleus3 hours and 13 minutes7 hours agoACIS-Sn/aNonen/a02h 54m 33.5s-10° 01' 43.1"Eri
GRB251013CUnidentified11 hours and 6 minutesnowACIS-Sn/aImmediaten/a23h 03m 20.5s-00° 12' 37.1"Psc
SDSS J022226.11-085701.3Seyfert 1 Galaxy3 hours and 30 minutesin 8 hoursACIS-Sn/aNonen/a02h 22m 26.1s-08° 57' 01.3"Cet
2MASS J17422050-5146223Active Galaxy Nucleus Candidate2 hours and 46 minutesin 12 hoursACIS-Sn/aNonen/a17h 42m 20.5s-51° 46' 22.3"Ara
SDSS J014837.63+060020.0Quasar3 hours and 20 minutesin 16 hoursACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
CAL-ER (41970)15 minutesin 20 hoursn/an/an/an/a03h 15m 36.2s+31° 44' 13.9"n/a
SDSS J103149.70+232502.7Galaxy2 hours and 46 minutesin 21 hoursACIS-Sn/aNonen/a10h 31m 49.7s+23° 25' 02.7"Leo
IC1954Galaxy towards a Group of Galaxies5 hours and 50 minutesin 24 hoursACIS-Sn/aNonen/a03h 31m 31.4s-51° 54' 17.6"Hor
CAL-ER (41969)50 minutesin 1 dayn/an/an/an/a03h 11m 20.9s+15° 25' 21.4"n/a
CAL-ER (41968)1 hour and 23 minutesin 1 dayn/an/an/an/a12h 19m 11.5s-54° 35' 27.6"n/a
CAL-ER (41967)50 minutesin 1 dayn/an/an/an/a03h 11m 20.9s+15° 25' 21.4"n/a
CAL-ER (41966)15 minutesin 1 dayn/an/an/an/a03h 13m 00.8s+21° 16' 06.6"n/a
CAL-ER (41965)15 minutesin 2 daysn/an/an/an/a02h 45m 45.2s+43° 28' 46.6"n/a
CAL-ER (41964)50 minutesin 2 daysn/an/an/an/a15h 53m 36.0s+29° 11' 60.0"n/a
CAL-ER (41963)50 minutesin 2 daysn/an/an/an/a12h 54m 50.4s+19° 05' 32.6"n/a
CAL-ER (41962)15 minutesin 2 daysn/an/an/an/a03h 13m 00.8s+21° 16' 06.6"n/a
NGC3626Galaxy towards a Group of Galaxies4 hours and 26 minutesin 2 daysACIS-Sn/aNonen/a11h 20m 03.8s+18° 21' 24.5"Leo
Perseus clusterCluster of Galaxies3 hours and 3 minutesin 2 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
NGC3626Galaxy towards a Group of Galaxies3 hours and 53 minutesin 2 daysACIS-Sn/aNonen/a11h 20m 03.8s+18° 21' 24.5"Leo
Perseus clusterCluster of Galaxies2 hours and 41 minutesin 2 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
NGC3626Galaxy towards a Group of Galaxies4 hours and 10 minutesin 2 daysACIS-Sn/aNonen/a11h 20m 03.8s+18° 21' 24.5"Leo
Perseus clusterCluster of Galaxies2 hours and 41 minutesin 3 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
NGC3626Galaxy towards a Group of Galaxies4 hours and 10 minutesin 3 daysACIS-Sn/aNonen/a11h 20m 03.8s+18° 21' 24.5"Leo
CAL-ER (41961)in 3 daysn/an/an/an/a07h 15m 60.0s-14° 05' 60.0"n/a
SDSS J031426.10-010846.2HII Galaxy3 hours and 20 minutesin 3 daysACIS-Sn/aNonen/a03h 14m 26.1s-01° 08' 46.6"Cet
CAL-ER (41960)in 3 daysn/an/an/an/a07h 15m 60.0s-14° 05' 60.0"n/a
NGC 4579Seyfert Galaxy4 hours and 10 minutesin 3 daysACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a12h 37m 43.6s+11° 49' 05.1"Vir
Perseus clusterCluster of Galaxies2 hours and 43 minutesin 3 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
Abell 795Cluster of Galaxies8 hours and 20 minutesin 4 daysACIS-Sn/aNonen/a09h 24m 05.3s+14° 10' 21.5"Leo