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 17 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
ASASSN-14koSuperNova2 hours and 43 minutes3 days agoACIS-Sn/aNoneTime Critical, Monitoring05h 25m 18.1s-46° 00' 20.3"Pic
Abell 3558 SEUnidentified7 hours and 38 minutes3 days agoACIS-In/aNonen/a13h 28m 30.3s-31° 35' 25.5"Cen
SNR G1.9+0.3SuperNova Remnant2 hours and 47 minutes3 days agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
CAL-ER (41362)50 minutes3 days agon/an/an/an/a19h 08m 48.3s-28° 00' 28.5"n/a
CAL-ER (41359)50 minutes2 days agon/an/an/an/a13h 45m 16.2s-24° 49' 45.9"n/a
[CTC2021] Vela C CR1c1Millimetric Radio Source4 hours and 6 minutes2 days agoACIS-In/aNonen/a08h 59m 25.0s-43° 32' 30.0"Vel
SNR G1.9+0.3SuperNova Remnant2 hours and 45 minutes2 days agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
[CTC2021] Vela C CR1c1Millimetric Radio Source4 hours and 6 minutes2 days agoACIS-In/aNonen/a08h 59m 25.0s-43° 32' 30.0"Vel
SNR G1.9+0.3SuperNova Remnant2 hours and 45 minutes2 days agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
Abell 3558 SEUnidentified10 hours and 33 minutes1 day agoACIS-In/aNonen/a13h 28m 30.3s-31° 35' 25.5"Cen
SnakeUnidentified2 hours and 43 minutes1 day agoACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
SDSS J164818.07+415550.2Quasar8 hours and 20 minutes21 hours agoACIS-Sn/aNonen/a16h 48m 18.1s+41° 55' 50.2"Her
SnakeUnidentified2 hours and 41 minutes12 hours agoACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
SDSS J141843.40+280957.4Galaxy4 hours and 43 minutes9 hours agoACIS-Sn/aNonen/a14h 18m 43.4s+28° 09' 57.5"Boo
SnakeUnidentified2 hours and 43 minutes3 hours agoACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
CAL-ER (41357)50 minutesnown/an/an/an/a18h 45m 27.9s-25° 01' 48.0"n/a
CAL-ER (41356)50 minutesin 2 hoursn/an/an/an/a19h 42m 21.5s-21° 38' 48.8"n/a
CAL-ER (41355)50 minutesin 5 hoursn/an/an/an/a01h 31m 12.0s+28° 06' 00.0"n/a
CAL-ER (41354)50 minutesin 7 hoursn/an/an/an/a10h 34m 48.0s-12° 18' 00.0"n/a
CAL-ER (41353)50 minutesin 8 hoursn/an/an/an/a01h 31m 12.0s+28° 06' 00.0"n/a
CAL-ER (41352)33 minutes and 20 secondsin 10 hoursn/an/an/an/a19h 25m 35.0s-17° 16' 14.9"n/a
Perseus cluster EUnidentified4 hours and 10 minutesin 12 hoursACIS-In/aNoneTime Critical03h 20m 14.4s+41° 30' 33.4"Per
CAL-ER (41351)in 17 hoursn/an/an/an/a19h 19m 36.0s+44° 00' 00.0"n/a
ZTF J1858-2024Cataclysmic Binary2 hours and 46 minutesin 17 hoursACIS-Sn/aNonen/a18h 58m 05.9s-20° 24' 48.6"Sgr
CAL-ER (41350)in 21 hoursn/an/an/an/a19h 19m 36.0s+44° 00' 00.0"n/a
Perseus cluster EUnidentified4 hours and 10 minutesin 21 hoursACIS-In/aNoneTime Critical03h 20m 14.4s+41° 30' 33.4"Per
CAL-ER (41349)in 1 dayn/an/an/an/a19h 19m 36.0s+44° 00' 00.0"n/a
ZTF J1858-2024Cataclysmic Binary2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a18h 58m 05.9s-20° 24' 48.6"Sgr
CAL-ER (41348)in 1 dayn/an/an/an/a19h 19m 36.0s+44° 00' 00.0"n/a
Perseus cluster EUnidentified4 hours and 10 minutesin 1 dayACIS-In/aNoneTime Critical03h 20m 14.4s+41° 30' 33.4"Per
2MASX J20043345-1113515Active Galaxy Nucleus Candidate2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a20h 04m 33.5s-11° 13' 51.9"Aql
Perseus cluster EUnidentified4 hours and 10 minutesin 2 daysACIS-In/aNoneTime Critical03h 20m 14.4s+41° 30' 33.4"Per
Abell 98NUnidentified15 hours and 16 minutesin 2 daysACIS-In/aNonen/a00h 46m 19.2s+20° 49' 43.3"Psc
CAL-ER (41347)15 minutesin 2 daysn/an/an/an/a18h 01m 46.5s+16° 34' 57.7"n/a
SnakeUnidentified3 hoursin 2 daysACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
CAL-ER (41346)50 minutesin 3 daysn/an/an/an/a18h 40m 06.3s-24° 27' 20.2"n/a
CAL-ER (41345)50 minutesin 3 daysn/an/an/an/a20h 06m 09.2s-18° 23' 52.8"n/a
CAL-ER (41344)50 minutesin 3 daysn/an/an/an/a02h 38m 48.0s+33° 53' 60.0"n/a
CAL-ER (41343)50 minutesin 3 daysn/an/an/an/a11h 17m 16.5s+35° 09' 26.3"n/a
CAL-ER (41342)50 minutesin 3 daysn/an/an/an/a01h 34m 00.0s+32° 47' 60.0"n/a
CAL-ER (41341)33 minutes and 20 secondsin 3 daysn/an/an/an/a19h 52m 24.0s-15° 05' 60.0"n/a
Perseus cluster NUnidentified4 hours and 10 minutesin 3 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 35' 22.8"Per
PKS2008-159Blazar2 hours and 46 minutesin 3 daysACIS-Sn/aNonen/a20h 11m 15.7s-15° 46' 40.3"Cap
Perseus cluster NUnidentified4 hours and 10 minutesin 4 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 35' 22.8"Per