3-day Schedule

The map of the observations requires JavaScript, but it appears that it is not available (or the page is taking some time to load).

This page shows 3 days of the Chandra schedule, either side of today, and the total science exposure time for these observations is 2 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
MKN421BL Lac - type object6 hours and 56 minutes3 days agoACIS-S with Low Energy Transmission Grating (LETG)n/aNoneTime Critical, Monitoring11h 04m 27.2s+38° 12' 31.7"UMa
HEP G188.948+04.274Unidentified2 hours and 56 minutes3 days agoACIS-In/aNonen/a06h 21m 47.8s+23° 14' 59.8"Gem
NGC5042Emission-line galaxy2 hours and 45 minutes2 days agoACIS-Sn/aNonen/a13h 15m 31.1s-23° 59' 00.6"Hya
zeta TauBe Star2 hours and 46 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNoneTime Critical, Constrained05h 37m 38.7s+21° 08' 33.1"Tau
NGC5042Emission-line galaxy3 hours and 38 minutes2 days agoACIS-Sn/aNonen/a13h 15m 31.1s-23° 59' 00.6"Hya
zeta TauBe Star5 hours and 33 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNoneTime Critical, Constrained05h 37m 38.7s+21° 08' 33.1"Tau
GRB 240825AUnidentified5 hours and 3 minutes1 day agoACIS-Sn/aSlowTime Critical, Monitoring22h 58m 17.3s+01° 01' 36.8"Psc
zeta TauBe Star2 hours and 46 minutes1 day agoACIS-S with High Energy Transmission Grating (HETG)n/aNoneTime Critical, Constrained05h 37m 38.7s+21° 08' 33.1"Tau
ACT-CL J0200.2-2454Cluster of Galaxies3 hours and 19 minutes1 day agoACIS-SXMMNonen/a02h 00m 16.7s-24° 54' 33.5"For
MKN421BL Lac - type object6 hours and 40 minutes22 hours agoACIS-S with Low Energy Transmission Grating (LETG)n/aNoneTime Critical, Monitoring11h 04m 27.2s+38° 12' 31.7"UMa
HD 75332High Proper Motion Star3 hours and 28 minutes14 hours agoHRC-In/aNoneTime Critical, Monitoring08h 50m 32.1s+33° 17' 04.2"Lyn
1eRASS J122028.4+045835Unidentified1 hour and 1 minute11 hours agoACIS-Sn/aNonen/a12h 20m 28.4s+04° 58' 35.8"Vir
SDSS J100021.80+223318.6Seyfert 2 Galaxy6 hours and 56 minutes9 hours agoACIS-SHSTNonen/a10h 00m 21.8s+22° 33' 18.6"Leo
CAL-ER (42837)50 minutesnown/an/an/an/a06h 16m 06.0s+24° 26' 57.5"n/a