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 5 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
NGC4540Galaxy towards a Group of Galaxies7 hours and 58 minutes3 days agoACIS-Sn/aNonen/a12h 34m 50.8s+15° 33' 04.7"Com
V444 CygWolf-Rayet8 hours and 46 minutes3 days agoACIS-S with High Energy Transmission Grating (HETG)XMMNonen/a20h 19m 32.4s+38° 43' 54.0"Cyg
Kepler's SNRUnidentified2 hours and 45 minutes3 days agoACIS-Sn/aNonen/a17h 30m 41.5s-21° 29' 30.0"Oph
CAL-ER (41454)50 minutes2 days agon/an/an/an/a01h 05m 54.5s+13° 49' 04.8"n/a
CAL-ER (41450)50 minutes2 days agon/an/an/an/a16h 03m 59.0s-20° 01' 25.6"n/a
Leo AGalaxy5 hours and 13 minutes2 days agoACIS-Sn/aNonen/a09h 59m 26.5s+30° 44' 47.0"Leo
Abell 2255Cluster of Galaxies5 hours and 30 minutes2 days agoACIS-In/aNonen/a17h 12m 50.0s+64° 03' 10.6"Dra
V444 CygWolf-Rayet8 hours and 31 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)XMMNonen/a20h 19m 32.4s+38° 43' 54.0"Cyg
SNR G1.9+0.3SuperNova Remnant2 hours and 51 minutes1 day agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
EP260302aUnidentified5 hours and 30 minutes23 hours agoACIS-Sn/aIntermediateTime Critical08h 51m 53.7s-65° 59' 01.3"Vol
SNR G1.9+0.3SuperNova Remnant3 hours and 2 minutes17 hours agoACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
EP260302aUnidentified5 hours and 58 minutes13 hours agoACIS-Sn/aIntermediateTime Critical08h 51m 53.7s-65° 59' 01.3"Vol
6dFJ0421194-313805Unidentified1 hour and 23 minutes6 hours agoACIS-Sn/aNonen/a04h 21m 19.4s-31° 38' 04.5"Eri
PWN J1631-4721Unidentified8 hours and 20 minutesnowACIS-Sn/aNonen/a16h 31m 59.4s-47° 22' 07.1"Nor
CAL-ER (41449)50 minutesin 4 hoursn/an/an/an/a16h 46m 33.0s-24° 38' 22.6"n/a
CAL-ER (41448)50 minutesin 5 hoursn/an/an/an/a16h 55m 24.0s-21° 52' 15.2"n/a
CAL-ER (41447)50 minutesin 9 hoursn/an/an/an/a20h 10m 45.4s-06° 56' 51.4"n/a
CAL-ER (41446)50 minutesin 11 hoursn/an/an/an/a18h 28m 44.5s+24° 12' 40.3"n/a
CAL-ER (41445)50 minutesin 13 hoursn/an/an/an/a01h 47m 03.9s+57° 41' 16.8"n/a
IIZW083Unidentified7 hours and 30 minutesin 16 hoursACIS-SNOAONoneTime Critical20h 26m 55.9s-02° 16' 39.1"Aql
SDSS J112728.73+195112.2HII Galaxy11 hours and 6 minutesin 1 dayACIS-Sn/aNonen/a11h 27m 28.7s+19° 51' 12.3"Leo
SN2026hkgUnidentified4 hours and 10 minutesin 2 daysACIS-SNuSTARIntermediateTime Critical, Monitoring09h 03m 36.1s-67° 58' 13.3"Vol
SNR G1.9+0.3SuperNova Remnant4 hours and 15 minutesin 2 daysACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
CAL-ER (41444)15 minutesin 2 daysn/an/an/an/a15h 37m 52.4s-24° 30' 05.0"n/a
Center of COSMOS-WebUnidentified8 hours and 20 minutesin 2 daysACIS-In/aNonen/a10h 00m 48.2s+01° 55' 16.4"Sex
CAL-ER (41443)15 minutesin 2 daysn/an/an/an/a16h 07m 42.8s-23° 56' 43.4"n/a
SNR G1.9+0.3SuperNova Remnant3 hours and 41 minutesin 2 daysACIS-Sn/aNonen/a17h 48m 45.0s-27° 10' 00.1"Sgr
PSR J1015-5719Pulsar5 hours and 33 minutesin 3 daysACIS-In/aNonen/a10h 15m 38.0s-57° 19' 12.8"Car
CAL-ER (41442)50 minutesin 3 daysn/an/an/an/a16h 32m 58.5s-25° 15' 00.7"n/a
CAL-ER (41441)50 minutesin 3 daysn/an/an/an/a16h 30m 48.4s-20° 59' 04.6"n/a
CAL-ER (41440)50 minutesin 3 daysn/an/an/an/a10h 49m 54.4s+16° 47' 57.1"n/a
CAL-ER (41439)50 minutesin 3 daysn/an/an/an/a08h 12m 39.2s+14° 30' 02.9"n/a
LEDA 184063Seyfert 2 Galaxy3 hours and 53 minutesin 3 daysACIS-Sn/aIntermediateTime Critical, Monitoring13h 44m 32.9s-22° 58' 01.4"Hya
SN 2024ggiSuperNova11 hours and 6 minutesin 3 daysACIS-Sn/aNoneTime Critical11h 18m 22.1s-32° 50' 15.3"Hya