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 5 days and 3 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
Center of COSMOS-WebUnidentified2 hours and 46 minutes4 days agoACIS-In/aNonen/a09h 59m 28.9s+02° 10' 59.4"Sex
A1795Cluster of Galaxies6 hours and 52 minutes4 days agoACIS-In/aNoneTime Critical13h 48m 52.7s+26° 35' 27.0"Boo
V4641 Sgr S1Unidentified2 hours and 45 minutes4 days agoACIS-Sn/aNonen/a18h 19m 21.6s-25° 24' 25.8"Sgr
Center of COSMOS-WebUnidentified4 hours and 8 minutes3 days agoACIS-In/aNonen/a09h 59m 48.0s+02° 00' 44.4"Sex
V4641 Sgr S1Unidentified2 hours and 45 minutes3 days agoACIS-Sn/aNonen/a18h 19m 21.6s-25° 24' 25.8"Sgr
Center of COSMOS-WebUnidentified2 hours and 46 minutes3 days agoACIS-In/aNonen/a09h 59m 48.0s+02° 00' 44.4"Sex
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 minutes2 days agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
CAL-ER (41362)50 minutes2 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 minutes1 day 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 minutes17 hours agoACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
SDSS J164818.07+415550.2Quasar8 hours and 20 minutes13 hours agoACIS-Sn/aNonen/a16h 48m 18.1s+41° 55' 50.2"Her
SnakeUnidentified2 hours and 41 minutes4 hours agoACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
SDSS J141843.40+280957.4Galaxy4 hours and 43 minutesnowACIS-Sn/aNonen/a14h 18m 43.4s+28° 09' 57.5"Boo
SnakeUnidentified2 hours and 43 minutesin 4 hoursACIS-INRAONonen/a17h 44m 19.2s-29° 46' 53.0"Sgr
CAL-ER (41357)50 minutesin 8 hoursn/an/an/an/a18h 45m 27.9s-25° 01' 48.0"n/a
CAL-ER (41356)50 minutesin 9 hoursn/an/an/an/a19h 42m 21.5s-21° 38' 48.8"n/a
CAL-ER (41355)50 minutesin 13 hoursn/an/an/an/a01h 31m 12.0s+28° 06' 00.0"n/a
CAL-ER (41354)50 minutesin 14 hoursn/an/an/an/a10h 34m 48.0s-12° 18' 00.0"n/a
CAL-ER (41353)50 minutesin 16 hoursn/an/an/an/a01h 31m 12.0s+28° 06' 00.0"n/a
CAL-ER (41352)33 minutes and 20 secondsin 18 hoursn/an/an/an/a19h 25m 35.0s-17° 16' 14.9"n/a
Perseus cluster EUnidentified4 hours and 10 minutesin 20 hoursACIS-In/aNoneTime Critical03h 20m 14.4s+41° 30' 33.4"Per
CAL-ER (41351)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 (41350)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
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 2 daysn/an/an/an/a19h 19m 36.0s+44° 00' 00.0"n/a
Perseus cluster EUnidentified4 hours and 10 minutesin 2 daysACIS-In/aNoneTime Critical03h 20m 14.4s+41° 30' 33.4"Per
2MASX J20043345-1113515Active Galaxy Nucleus Candidate2 hours and 46 minutesin 2 daysACIS-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 3 daysn/an/an/an/a18h 01m 46.5s+16° 34' 57.7"n/a
SnakeUnidentified3 hoursin 3 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