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 19 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
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutes3 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
NGC 1358Seyfert 2 Galaxy8 hours and 13 minutes3 days agoACIS-SNuSTARNoneTime Critical, Monitoring03h 33m 39.7s-05° 05' 22.2"Eri
3CR 17Seyfert 1 Galaxy2 hours and 52 minutes3 days agoACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
CAL-ER (41135)50 minutes3 days agon/an/an/an/a23h 55m 52.8s-02° 30' 36.0"n/a
CAL-ER (41129)33 minutes and 20 seconds2 days agon/an/an/an/a05h 15m 60.0s+58° 00' 00.0"n/a
SN2026sqfUnidentified3 hours and 2 minutes2 days agoACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
Cas ASuperNova Remnant35 minutes2 days agoACIS-In/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant34 minutes and 10 seconds2 days agoACIS-Sn/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant32 minutes2 days agoACIS-Sn/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutes2 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSS J142314.36+635803.6Seyfert 2 Galaxy4 hours and 8 minutes2 days agoACIS-Sn/aNonen/a14h 23m 14.5s+63° 58' 04.3"Dra
MACS J0018.5+1626Cluster of Galaxies2 hours and 21 minutes1 day agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SN2026sqfUnidentified2 hours and 46 minutes1 day agoACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
MACS J0018.5+1626Cluster of Galaxies2 hours and 13 minutes1 day agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
CAL-ER (41127)1 day agon/an/an/an/a21h 03m 60.0s+26° 00' 00.0"n/a
SNR G1.9+0.3SuperNova Remnant6 hours and 56 minutes1 day agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
CAL-ER (41126)18 hours agon/an/an/an/a21h 03m 60.0s+26° 00' 00.0"n/a
MACS J0018.5+1626Cluster of Galaxies3 hours and 53 minutes17 hours agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSSJ084755.63+263147.6Seyfert 1 Galaxy2 hours and 46 minutes13 hours agoACIS-Sn/aNonen/a08h 47m 55.6s+26° 31' 47.7"Cnc
3CR 17Seyfert 1 Galaxy5 hours and 33 minutes9 hours agoACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
EXO 0748-676Low Mass X-ray Binary3 hours and 3 minutesnowACIS-SSwiftSlowTime Critical, Monitoring07h 48m 33.7s-67° 45' 07.7"Vol
CAL-ER (41125)50 minutesin 12 minutesn/an/an/an/a00h 06m 24.0s-02° 08' 10.3"n/a
CAL-ER (41124)1 hour and 40 minutesin 2 hoursn/an/an/an/a23h 34m 40.8s-02° 51' 14.4"n/a
CAL-ER (41123)50 minutesin 4 hoursn/an/an/an/a17h 40m 00.0s-44° 00' 00.0"n/a
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 14 hoursACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
3CR 17Seyfert 1 Galaxy3 hours and 36 minutesin 17 hoursACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
SDSS J083721.87+192110.6Galaxy3 hours and 3 minutesin 22 hoursACIS-Sn/aNonen/a08h 37m 21.9s+19° 21' 10.6"Cnc
PG 1700+518Seyfert 1 Galaxy2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a17h 01m 24.8s+51° 49' 20.0"Dra
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 1 dayACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
3CR 17Seyfert 1 Galaxy4 hours and 43 minutesin 1 dayACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
EXO 0748-676Low Mass X-ray Binary6 hours and 40 minutesin 2 daysACIS-SSwiftSlowTime Critical, Monitoring07h 48m 33.7s-67° 45' 07.7"Vol
ACT-CL J0123.5-0428Cluster of Galaxies4 hours and 10 minutesin 2 daysACIS-SHST,XMMNonen/a01h 23m 31.3s-04° 28' 30.4"Cet
msh 11-62SuperNova Remnant3 hours and 36 minutesin 2 daysHRC-In/aNonen/a11h 11m 55.2s-60° 38' 09.4"Car
V4641 Sgr S1Unidentified2 hours and 46 minutesin 2 daysACIS-Sn/aNonen/a18h 19m 21.6s-25° 24' 25.8"Sgr
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 2 daysACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutesin 3 daysACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
CAL-ER (41122)1 hour and 40 minutesin 3 daysn/an/an/an/a11h 57m 07.2s+61° 53' 60.0"n/a
CAL-ER (41121)50 minutesin 3 daysn/an/an/an/a06h 07m 07.7s-29° 59' 55.7"n/a
CAL-ER (41120)1 hour and 30 minutesin 3 daysn/an/an/an/a00h 21m 38.4s-02° 59' 24.0"n/a
CAL-ER (41119)50 minutesin 3 daysn/an/an/an/a06h 07m 07.7s-29° 59' 55.7"n/a
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 3 daysACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
ACT-CL J0123.5-0428Cluster of Galaxies3 hours and 53 minutesin 3 daysACIS-SHST,XMMNonen/a01h 23m 31.3s-04° 28' 30.4"Cet
msh 11-62SuperNova Remnant3 hours and 20 minutesin 4 daysHRC-In/aNonen/a11h 11m 55.2s-60° 38' 09.4"Car
1RXS J021649.0+703552X-ray source7 hours and 55 minutesin 4 daysACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas