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 13 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 (41137)33 minutes and 20 seconds4 days agon/an/an/an/a06h 24m 39.6s+30° 16' 59.1"n/a
SDSSJ101730.98+470225.0Seyfert 1 Galaxy2 hours and 54 minutes3 days agoACIS-Sn/aNonen/a10h 17m 31.0s+47° 02' 25.1"UMa
Cas ASuperNova Remnant34 minutes and 50 seconds3 days agoACIS-In/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant34 minutes and 50 seconds3 days agoACIS-In/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant32 minutes3 days agoACIS-In/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
5C 7.230Quasar3 hours and 26 minutes3 days agoACIS-Sn/aImmediateTime Critical08h 24m 33.0s+24° 38' 43.1"Cnc
3CR 17Seyfert 1 Galaxy5 hours and 52 minutes3 days agoACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
5C 7.230Quasar4 hours and 17 minutes3 days agoACIS-Sn/aImmediateTime Critical08h 24m 33.0s+24° 38' 43.1"Cnc
MACS J0018.5+1626Cluster of Galaxies3 hours and 2 minutes2 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSS J142314.36+635803.6Seyfert 2 Galaxy3 hours and 51 minutes2 days agoACIS-Sn/aNonen/a14h 23m 14.5s+63° 58' 04.3"Dra
MACS J0018.5+1626Cluster of Galaxies2 hours and 46 minutes2 days agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
NGC 1358Seyfert 2 Galaxy8 hours and 13 minutes2 days agoACIS-SNuSTARNoneTime Critical, Monitoring03h 33m 39.7s-05° 05' 22.2"Eri
3CR 17Seyfert 1 Galaxy2 hours and 52 minutes2 days agoACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
CAL-ER (41135)50 minutes1 day agon/an/an/an/a23h 55m 52.8s-02° 30' 36.0"n/a
CAL-ER (41131)33 minutes and 20 seconds1 day agon/an/an/an/a13h 35m 60.0s-39° 00' 00.0"n/a
CAL-ER (41130)50 minutes24 hours agon/an/an/an/a09h 39m 60.0s+42° 00' 00.0"n/a
CAL-ER (41129)33 minutes and 20 seconds22 hours agon/an/an/an/a05h 15m 60.0s+58° 00' 00.0"n/a
CAL-ER (41128)16 minutes and 40 seconds20 hours agon/an/an/an/a23h 51m 43.2s+02° 13' 48.0"n/a
SN2026sqfUnidentified2 hours and 46 minutes19 hours agoACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
Cas ASuperNova Remnant33 minutes and 20 seconds15 hours agoACIS-In/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant33 minutes and 20 seconds14 hours agoACIS-Sn/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
Cas ASuperNova Remnant33 minutes and 20 seconds13 hours agoACIS-Sn/aNoneTime Critical, Monitoring23h 23m 25.8s+58° 48' 53.4"Cas
MACS J0018.5+1626Cluster of Galaxies2 hours and 58 minutes12 hours agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSS J142314.36+635803.6Seyfert 2 Galaxy4 hours and 26 minutes9 hours agoACIS-Sn/aNonen/a14h 23m 14.5s+63° 58' 04.3"Dra
MACS J0018.5+1626Cluster of Galaxies2 hours and 35 minutes4 hours agoACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SN2026sqfUnidentified2 hours and 46 minutesnowACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
MACS J0018.5+1626Cluster of Galaxies2 hours and 13 minutesin 3 hoursACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
CAL-ER (41127)in 5 hoursn/an/an/an/a21h 03m 60.0s+26° 00' 00.0"n/a
SNR G1.9+0.3SuperNova Remnant6 hours and 56 minutesin 6 hoursACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
CAL-ER (41126)in 12 hoursn/an/an/an/a21h 03m 60.0s+26° 00' 00.0"n/a
MACS J0018.5+1626Cluster of Galaxies3 hours and 53 minutesin 13 hoursACIS-In/aNonen/a00h 18m 33.3s+16° 26' 35.9"Psc
SDSSJ084755.63+263147.6Seyfert 1 Galaxy2 hours and 46 minutesin 17 hoursACIS-Sn/aNonen/a08h 47m 55.6s+26° 31' 47.7"Cnc
3CR 17Seyfert 1 Galaxy5 hours and 33 minutesin 21 hoursACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
EXO 0748-676Low Mass X-ray Binary3 hours and 3 minutesin 1 dayACIS-SSwiftSlowTime Critical, Monitoring07h 48m 33.7s-67° 45' 07.7"Vol
CAL-ER (41125)50 minutesin 1 dayn/an/an/an/a00h 06m 24.0s-02° 08' 10.3"n/a
CAL-ER (41124)1 hour and 40 minutesin 1 dayn/an/an/an/a23h 34m 40.8s-02° 51' 14.4"n/a
CAL-ER (41123)50 minutesin 1 dayn/an/an/an/a17h 40m 00.0s-44° 00' 00.0"n/a
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 2 daysACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
3CR 17Seyfert 1 Galaxy3 hours and 36 minutesin 2 daysACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
SDSS J083721.87+192110.6Galaxy3 hours and 3 minutesin 2 daysACIS-Sn/aNonen/a08h 37m 21.9s+19° 21' 10.6"Cnc
PG 1700+518Seyfert 1 Galaxy2 hours and 46 minutesin 2 daysACIS-Sn/aNonen/a17h 01m 24.8s+51° 49' 20.0"Dra
Perseus ClusterCluster of Galaxies2 hours and 46 minutesin 2 daysACIS-In/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
3CR 17Seyfert 1 Galaxy4 hours and 43 minutesin 3 daysACIS-SNRAONonen/a00h 38m 20.5s-02° 07' 40.5"Cet
EXO 0748-676Low Mass X-ray Binary6 hours and 40 minutesin 3 daysACIS-SSwiftSlowTime Critical, Monitoring07h 48m 33.7s-67° 45' 07.7"Vol