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 4 days and 20 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
CAL-ER (41129)33 minutes and 20 seconds3 days agon/an/an/an/a03h 13m 29.8s+36° 57' 56.9"n/a
SN2026sqfUnidentified3 hours and 2 minutes3 days agoACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
Cas ASuperNova Remnant35 minutes3 days agoACIS-In/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant34 minutes and 10 seconds3 days agoACIS-Sn/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant32 minutes3 days agoACIS-Sn/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutes3 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSS J142314.36+635803.6Seyfert 2 Galaxy4 hours and 8 minutes3 days agoACIS-Sn/aNonen/a14h 23m 14.5s+63° 58' 04.3"Dra
MACS J0018.5+1626Cluster of Galaxies2 hours and 21 minutes2 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SN2026sqfUnidentified3 hours and 2 minutes2 days agoACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
MACS J0018.5+1626Cluster of Galaxies2 hours and 4 minutes2 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SNR G1.9+0.3SuperNova Remnant6 hours and 19 minutes2 days agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
MACS J0018.5+1626Cluster of Galaxies3 hours and 35 minutes2 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSSJ084755.63+263147.6Seyfert 1 Galaxy2 hours and 45 minutes1 day agoACIS-Sn/aNonen/a08h 47m 55.6s+26° 31' 47.7"Cnc
3CR 17Seyfert 1 Galaxy5 hours and 5 minutes1 day agoACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
EXO 0748-676Low Mass X-ray Binary2 hours and 58 minutes1 day agoACIS-SSwiftSlowTime Critical, Monitoring07h 48m 33.7s-67° 45' 07.7"Vol
CAL-ER (41125)50 minutes22 hours agon/an/an/an/a23h 53m 11.1s-02° 25' 32.8"n/a
CAL-ER (41123)50 minutes18 hours agon/an/an/an/a17h 40m 00.0s-44° 00' 00.0"n/a
Perseus ClusterCluster of Galaxies2 hours and 46 minutes8 hours agoACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
3CR 17Seyfert 1 Galaxy3 hours and 36 minutes5 hours agoACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
SDSS J083721.87+192110.6Galaxy3 hours and 3 minutesnowACIS-Sn/aNonen/a08h 37m 21.9s+19° 21' 10.6"Cnc
PG 1700+518Seyfert 1 Galaxy2 hours and 46 minutesin 4 hoursACIS-Sn/aNonen/a17h 01m 24.8s+51° 49' 20.0"Dra
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 7 hoursACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
3CR 17Seyfert 1 Galaxy4 hours and 43 minutesin 10 hoursACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
EXO 0748-676Low Mass X-ray Binary6 hours and 40 minutesin 15 hoursACIS-SSwiftSlowTime Critical, Monitoring07h 48m 33.7s-67° 45' 07.7"Vol
ACT-CL J0123.5-0428Cluster of Galaxies4 hours and 10 minutesin 23 hoursACIS-SHST,XMMNonen/a01h 23m 31.3s-04° 28' 30.4"Cet
msh 11-62SuperNova Remnant3 hours and 36 minutesin 1 dayHRC-In/aNonen/a11h 11m 55.2s-60° 38' 09.4"Car
V4641 Sgr S1Unidentified2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a18h 19m 21.6s-25° 24' 25.8"Sgr
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 1 dayACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutesin 2 daysACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
CAL-ER (41122)1 hour and 40 minutesin 2 daysn/an/an/an/a11h 57m 07.2s+61° 53' 60.0"n/a
CAL-ER (41121)50 minutesin 2 daysn/an/an/an/a06h 07m 07.7s-29° 59' 55.7"n/a
CAL-ER (41120)1 hour and 30 minutesin 2 daysn/an/an/an/a00h 21m 38.4s-02° 59' 24.0"n/a
CAL-ER (41119)50 minutesin 2 daysn/an/an/an/a06h 07m 07.7s-29° 59' 55.7"n/a
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 2 daysACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
ACT-CL J0123.5-0428Cluster of Galaxies3 hours and 53 minutesin 2 daysACIS-SHST,XMMNonen/a01h 23m 31.3s-04° 28' 30.4"Cet
msh 11-62SuperNova Remnant3 hours and 20 minutesin 3 daysHRC-In/aNonen/a11h 11m 55.2s-60° 38' 09.4"Car
1RXS J021649.0+703552X-ray source7 hours and 55 minutesin 3 daysACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutesin 3 daysACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSS J083721.87+192110.6Galaxy3 hours and 36 minutesin 3 daysACIS-Sn/aNonen/a08h 37m 21.9s+19° 21' 10.6"Cnc
MACS J0018.5+1626Cluster of Galaxies3 hours and 3 minutesin 3 daysACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSS J083721.87+192110.6Galaxy3 hours and 36 minutesin 4 daysACIS-Sn/aNonen/a08h 37m 21.9s+19° 21' 10.6"Cnc
RMJ004525.1+100754.8Unidentified2 hours and 46 minutesin 4 daysACIS-In/aNonen/a00h 45m 25.1s+10° 07' 54.8"Psc