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 3 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
IGR J16580-3247Unidentified1 hour and 23 minutes3 days agoACIS-In/aNonen/a16h 58m 04.8s-32° 47' 60.0"Sco
SNR 1987ASuperNova Remnant3 hours and 59 minutes3 days agoHRC-S with Low Energy Transmission Grating (LETG)n/aNoneTime Critical05h 35m 28.0s-69° 16' 11.1"Dor
GW170817Gravitational Wave Event5 hours and 30 minutes3 days agoACIS-SNRAONoneTime Critical13h 09m 48.1s-23° 22' 53.3"Hya
4U 1626-67Low Mass X-ray Binary8 hours and 9 minutes3 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a16h 32m 16.7s-67° 27' 42.0"TrA
SDSSJ115741.94-032106.1Quasar4 hours and 8 minutes2 days agoACIS-Sn/aNonen/a11h 57m 41.9s-03° 21' 06.1"Vir
HD 284785High Proper Motion Star2 hours and 1 minute2 days agoHRC-IHSTNonen/a04h 47m 08.9s+20° 52' 56.3"Tau
NGC2090Galaxy towards a Group of Galaxies3 hours and 35 minutes2 days agoACIS-Sn/aNonen/a05h 47m 01.9s-34° 15' 01.8"Col
PSR J1101-6101Gamma-ray Source4 hours and 8 minutes2 days agoACIS-In/aNoneTime Critical11h 01m 45.1s-61° 01' 40.3"Car
EP J120944.2+585060Unidentified2 hours and 57 minutes2 days agoHRC-In/aImmediateTime Critical12h 09m 44.5s+58° 50' 53.9"UMa
ACT-CL J1311.4+1842Cluster of Galaxies2 hours and 59 minutes2 days agoACIS-SXMMNonen/a13h 11m 24.1s+18° 42' 12.6"Com
CAL-ER (42539)15 minutes and 40 seconds1 day agon/an/an/an/a12h 21m 51.3s+05° 48' 17.6"n/a
CAL-ER (42535)50 minutes1 day agon/an/an/an/a05h 51m 07.2s-40° 26' 20.4"n/a
CAL-ER (42534)50 minutes1 day agon/an/an/an/a11h 55m 25.4s-04° 19' 53.0"n/a
CAL-ER (42533)50 minutes1 day agon/an/an/an/a05h 51m 07.2s-40° 26' 20.4"n/a
CAL-ER (42532)15 minutes1 day agon/an/an/an/a11h 55m 25.4s-04° 19' 53.0"n/a
CAL-ER (42531)15 minutes1 day agon/an/an/an/a12h 41m 02.8s-05° 39' 32.8"n/a
4U 1626-67Low Mass X-ray Binary8 hours and 20 minutes23 hours agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a16h 32m 16.8s-67° 27' 39.3"TrA
CAL-ER (42530)17 hours agon/an/an/an/a14h 54m 31.2s+13° 06' 37.8"n/a
[JDW2009] G359.55+0.16X-ray Source8 hours and 20 minutes14 hours agoACIS-In/aNonen/a17h 43m 56.0s-29° 13' 55.0"Oph
NGC4261LINER-type Active Galaxy Nucleus3 hours and 20 minutes5 hours agoHRC-In/aNonen/a12h 19m 23.2s+05° 49' 29.7"Vir
Gaia DR2 168774798644094592High Proper Motion Star3 hours and 41 minutesnowACIS-Sn/aNonen/a03h 56m 33.1s+31° 57' 24.8"Per
CAL-ER (42529)in 20 minutesn/an/an/an/a14h 54m 31.2s+13° 06' 37.8"n/a
A1550Cluster of Galaxies7 hours and 46 minutesin 4 hoursACIS-In/aNonen/a12h 28m 58.2s+47° 37' 18.5"CVn
2MASS J18352154-3123385High Proper Motion Star1 hour and 23 minutesin 12 hoursACIS-Sn/aNonen/a18h 35m 21.6s-31° 23' 44.3"Sgr
PSR J1101-6101Gamma-ray Source6 hours and 56 minutesin 14 hoursACIS-In/aNoneTime Critical11h 01m 45.1s-61° 01' 40.3"Car
UGC 06850Seyfert 1 Galaxy2 hours and 46 minutesin 22 hoursACIS-In/aNonen/a11h 52m 37.2s-02° 28' 09.9"Vir
B2.3 0408+34ARadio Source4 hours and 26 minutesin 1 dayACIS-Sn/aNonen/a04h 11m 39.7s+34° 45' 42.6"Per
CAL-ER (42528)15 minutesin 1 dayn/an/an/an/a12h 44m 53.3s+02° 53' 06.0"n/a