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 14 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
SNR G21.5-0.9Pulsar2 hours and 43 minutes4 days agoHRC-Sn/aNoneTime Critical18h 33m 33.5s-10° 34' 06.7"Sct
DS TucVariable of RS CVn type3 hours and 21 minutes4 days agoACIS-Sn/aNoneTime Critical, Monitoring23h 39m 39.9s-69° 11' 46.5"Tuc
[RRB2014] RM J005504.9+054737.6Cluster of Galaxies2 hours and 46 minutes4 days agoACIS-In/aNonen/a00h 55m 04.9s+05° 47' 37.6"Psc
Kes 73SuperNova Remnant6 hours and 18 minutes3 days agoACIS-SJWSTNonen/a18h 41m 20.0s-04° 56' 11.0"Sct
CAL-ER (41061)50 minutes3 days agon/an/an/an/a01h 20m 04.6s+08° 58' 42.5"n/a
CAL-ER (41055)15 minutes and 40 seconds3 days agon/an/an/an/a02h 23m 53.3s+18° 00' 43.3"n/a
RXJ0821.0+0752Cluster of Galaxies3 hours and 36 minutes3 days agoACIS-Sn/aNonen/a08h 21m 02.4s+07° 51' 46.8"Cnc
Perseus ClusterCluster of Galaxies1 hour and 21 minutes2 days agoACIS-Sn/aNoneTime Critical, Monitoring03h 19m 48.2s+41° 30' 42.1"Per
V* PW AndRS CVn Variable1 hour and 26 minutes2 days agoACIS-Sn/aNonen/a00h 18m 21.1s+30° 57' 19.6"And
Kes 73SuperNova Remnant2 hours and 54 minutes2 days agoACIS-SJWSTNonen/a18h 41m 20.0s-04° 56' 11.0"Sct
NGC7674Seyfert 2 Galaxy2 hours and 35 minutes2 days agoACIS-Sn/aNonen/a23h 27m 24.8s+08° 44' 45.2"Peg
Kes 73SuperNova Remnant3 hours and 26 minutes2 days agoACIS-SJWSTNonen/a18h 41m 20.0s-04° 56' 11.0"Sct
CHQ J0210+0050Unidentified3 hours and 2 minutes2 days agoACIS-In/aNonen/a02h 09m 60.0s+00° 50' 24.0"Cet
WR21aWolf-Rayet3 hours and 53 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a10h 25m 56.5s-57° 48' 43.5"Car
CHQ J0210+0050Unidentified2 hours and 46 minutes1 day agoACIS-In/aNonen/a02h 09m 60.0s+00° 50' 24.0"Cet
WR21aWolf-Rayet3 hours and 53 minutes1 day agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a10h 25m 56.5s-57° 48' 43.5"Car
CHQ J0210+0050Unidentified2 hours and 46 minutes1 day agoACIS-In/aNonen/a02h 09m 60.0s+00° 50' 24.0"Cet
WR21aWolf-Rayet3 hours and 53 minutes21 hours agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a10h 25m 56.5s-57° 48' 43.5"Car
SN 2016coiSuperNova5 hours and 33 minutes16 hours agoACIS-Sn/aIntermediaten/a21h 59m 04.1s+18° 11' 10.5"Peg
CAL-ER (41052)50 minutes10 hours agon/an/an/an/a01h 23m 03.9s+10° 43' 53.4"n/a
CAL-ER (41051)50 minutes9 hours agon/an/an/an/a16h 49m 03.0s-00° 08' 35.2"n/a
CAL-ER (41050)50 minutes7 hours agon/an/an/an/a01h 23m 03.9s+10° 43' 53.8"n/a
CAL-ER (41049)50 minutes6 hours agon/an/an/an/a01h 53m 52.4s+12° 10' 37.9"n/a
CAL-ER (41048)50 minutesnown/an/an/an/a05h 15m 39.7s+45° 44' 59.6"n/a
CAL-ER (41047)50 minutesin 1 minuten/an/an/an/a13h 44m 23.3s+38° 11' 45.6"n/a
V444 CygWolf-Rayet8 hours and 20 minutesin 3 hoursACIS-S with High Energy Transmission Grating (HETG)XMMNonen/a20h 19m 32.4s+38° 43' 54.0"Cyg
CAL-ER (41046)in 12 hoursn/an/an/an/a23h 41m 02.3s-03° 06' 49.3"n/a
SDSS J014837.63+060020.0Quasar2 hours and 55 minutesin 12 hoursACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
CAL-ER (41045)in 15 hoursn/an/an/an/a01h 00m 36.2s-16° 33' 06.1"n/a
CMZ Molecular CloudUnidentified4 hours and 10 minutesin 16 hoursACIS-In/aNonen/a17h 46m 12.1s-28° 53' 19.3"Sgr
CAL-ER (41044)in 21 hoursn/an/an/an/a01h 00m 36.2s-16° 33' 06.1"n/a
SDSS J014837.63+060020.0Quasar2 hours and 55 minutesin 21 hoursACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
CAL-ER (41043)in 1 dayn/an/an/an/a01h 00m 36.2s-16° 33' 06.1"n/a
CMZ Molecular CloudUnidentified3 hours and 53 minutesin 1 dayACIS-In/aNonen/a17h 46m 12.1s-28° 53' 19.3"Sgr
CAL-ER (41042)in 1 dayn/an/an/an/a01h 00m 36.2s-16° 33' 06.1"n/a
SDSS J014837.63+060020.0Quasar2 hours and 46 minutesin 1 dayACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
CAL-ER (41041)in 1 dayn/an/an/an/a01h 00m 36.2s-16° 33' 06.1"n/a
CMZ Molecular CloudUnidentified3 hours and 3 minutesin 1 dayACIS-In/aNonen/a17h 46m 12.1s-28° 53' 19.3"Sgr
CAL-ER (41040)in 2 daysn/an/an/an/a01h 00m 36.2s-16° 33' 06.1"n/a
SDSS J014837.63+060020.0Quasar2 hours and 46 minutesin 2 daysACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
WR21aWolf-Rayet5 hoursin 2 daysACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a10h 25m 56.5s-57° 48' 43.5"Car
SDSS J014837.63+060020.0Quasar6 hours and 6 minutesin 2 daysACIS-In/aNonen/a01h 48m 37.6s+06° 00' 20.0"Psc
CAL-ER (41039)50 minutesin 2 daysn/an/an/an/a11h 29m 43.6s-49° 20' 22.2"n/a
CAL-ER (41038)50 minutesin 2 daysn/an/an/an/a16h 58m 51.0s-29° 40' 27.8"n/a
CAL-ER (41037)50 minutesin 2 daysn/an/an/an/a22h 35m 04.2s-18° 16' 39.7"n/a
CAL-ER (41036)15 minutesin 3 daysn/an/an/an/a04h 38m 06.3s+56° 54' 01.1"n/a
CAL-ER (41035)15 minutesin 3 daysn/an/an/an/a09h 31m 59.2s+59° 37' 38.3"n/a
CAL-ER (41034)15 minutesin 3 daysn/an/an/an/a01h 52m 28.0s+13° 43' 48.0"n/a
SN2026sqfUnidentified2 hours and 46 minutesin 3 daysACIS-Sn/aImmediateTime Critical, Monitoring10h 38m 48.0s+53° 30' 34.1"UMa
CAL-ER (41033)in 3 daysn/an/an/an/a05h 13m 07.8s+12° 13' 03.4"n/a
BOSS0210EUnidentified5 hours and 16 minutesin 3 daysACIS-In/aNonen/a02h 08m 48.0s+01° 00' 00.0"Cet
CAL-ER (41032)15 minutesin 3 daysn/an/an/an/a11h 11m 36.0s-47° 12' 00.0"n/a
[ZCA2021] BOSS1244 NEUnidentified4 hours and 10 minutesin 3 daysACIS-In/aNonen/a12h 44m 19.2s+36° 04' 48.0"CVn