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
CMZ Molecular CloudUnidentified4 hours and 8 minutes4 days agoACIS-In/aNonen/a17h 46m 12.1s-28° 53' 19.3"Sgr
WISE J010050.09-024218.7Unidentified5 hours and 55 minutes4 days agoACIS-Sn/aNonen/a01h 00m 50.1s-02° 42' 18.8"Cet
CMZ Molecular CloudUnidentified4 hours and 8 minutes3 days agoACIS-In/aNonen/a17h 46m 12.1s-28° 53' 19.3"Sgr
Ar LacRS CVn Variable1 hour and 20 minutes3 days agoHRC-In/aNoneTime Critical, Monitoring22h 08m 40.7s+45° 44' 33.4"Lac
Ar LacRS CVn Variable1 hour and 24 minutes3 days agoHRC-In/aNoneTime Critical, Monitoring22h 08m 40.7s+45° 44' 33.4"Lac
Kepler's SNRUnidentified2 hours and 45 minutes3 days agoACIS-Sn/aNonen/a17h 30m 41.5s-21° 29' 30.0"Oph
AN UMaCataclysmic Binary5 hours and 26 minutes3 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a11h 04m 25.7s+45° 03' 13.9"UMa
Kepler's SNRUnidentified4 hours and 24 minutes2 days agoACIS-Sn/aNonen/a17h 30m 41.5s-21° 29' 30.0"Oph
AN UMaCataclysmic Binary5 hours and 20 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a11h 04m 25.7s+45° 03' 13.9"UMa
CAL-ER (41422)50 minutes2 days agon/an/an/an/a17h 00m 23.8s-15° 23' 15.4"n/a
CAL-ER (41419)50 minutes2 days agon/an/an/an/a23h 46m 24.0s+55° 06' 00.0"n/a
Kepler's SNRUnidentified3 hours and 40 minutes1 day agoACIS-Sn/aNonen/a17h 30m 41.5s-21° 29' 30.0"Oph
A1795Cluster of Galaxies5 hours and 33 minutes1 day agoACIS-Sn/aNoneTime Critical13h 48m 52.7s+26° 35' 27.0"Boo
SDSS J131249.15+225151.5Galaxy3 hours and 3 minutes24 hours agoACIS-Sn/aNonen/a13h 12m 49.2s+22° 51' 51.6"Com
NGC4293LINER-type Active Galaxy Nucleus11 hours and 6 minutes20 hours agoACIS-Sn/aNonen/a12h 21m 13.0s+18° 22' 58.8"Com
GAIA DR2 4370003505696558080Star2 hours and 46 minutes9 hours agoACIS-Sn/aNonen/a17h 27m 31.8s-02° 10' 31.3"Oph
1RXS J021649.0+703552X-ray source4 hours and 10 minutes5 hours agoACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
GAIA DR2 4370003505696558080Star2 hours and 46 minutesnowACIS-Sn/aNonen/a17h 27m 31.8s-02° 10' 31.3"Oph
1RXS J021649.0+703552X-ray source4 hours and 10 minutesin 3 hoursACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
G011.2-0.3SuperNova Remnant2 hours and 46 minutesin 8 hoursACIS-Sn/aNonen/a18h 11m 29.4s-19° 25' 25.0"Sgr
SN2026obcUnidentified5 hours and 33 minutesin 11 hoursACIS-Sn/aIntermediaten/a01h 07m 49.4s+41° 59' 43.4"And
CAL-ER (41417)50 minutesin 17 hoursn/an/an/an/a17h 47m 08.3s-17° 14' 20.8"n/a
CAL-ER (41416)1 hour and 40 minutesin 19 hoursn/an/an/an/a18h 29m 24.0s-18° 54' 15.1"n/a
CAL-ER (41415)50 minutesin 21 hoursn/an/an/an/a00h 32m 00.0s+11° 00' 00.0"n/a
CAL-ER (41414)15 minutesin 1 dayn/an/an/an/a18h 29m 24.0s-18° 54' 15.1"n/a
CAL-ER (41413)15 minutesin 1 dayn/an/an/an/a17h 48m 00.0s-28° 00' 00.0"n/a
ASASSN-14koSuperNova2 hours and 46 minutesin 1 dayACIS-Sn/aNoneTime Critical, Monitoring05h 25m 18.1s-46° 00' 20.3"Pic
CMZ Molecular CloudUnidentified3 hours and 53 minutesin 1 dayACIS-In/aNonen/a17h 46m 12.1s-28° 53' 19.3"Sgr
MCG-5-23-16Seyfert 2 Galaxy4 hours and 26 minutesin 2 daysACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a09h 47m 40.1s-30° 56' 56.0"Ant
SDSS J142129.75+474724.5Seyfert 1 Galaxy11 hours and 29 minutesin 2 daysACIS-Sn/aNonen/a14h 21m 29.7s+47° 47' 24.5"Boo
CAL-ER (41412)in 2 daysn/an/an/an/a18h 07m 22.7s+15° 08' 42.0"n/a
G011.2-0.3SuperNova Remnant3 hours and 36 minutesin 2 daysACIS-Sn/aNonen/a18h 11m 29.4s-19° 25' 25.0"Sgr
CAL-ER (41411)15 minutesin 2 daysn/an/an/an/a17h 24m 08.6s-24° 49' 47.6"n/a
Center of COSMOS-WebUnidentified4 hours and 46 minutesin 2 daysACIS-In/aNonen/a10h 00m 20.9s+02° 23' 17.6"Sex
Abell 2255Cluster of Galaxies3 hours and 20 minutesin 3 daysACIS-In/aNonen/a17h 12m 50.0s+64° 03' 10.6"Dra
G011.2-0.3SuperNova Remnant3 hours and 20 minutesin 3 daysACIS-Sn/aNonen/a18h 11m 29.4s-19° 25' 25.0"Sgr
CAL-ER (41410)15 minutesin 3 daysn/an/an/an/a18h 16m 03.7s-26° 57' 34.9"n/a
TDE2025abcrUnidentified5 hours and 33 minutesin 3 daysACIS-Sn/aSlowTime Critical01h 46m 55.4s-15° 22' 15.8"Cet