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 4 days and 23 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
V444 CygWolf-Rayet4 hours and 2 minutes4 days agoACIS-S with High Energy Transmission Grating (HETG)XMMNonen/a20h 19m 32.4s+38° 43' 54.0"Cyg
Perseus clusterCluster of Galaxies3 hours and 4 minutes4 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
V444 CygWolf-Rayet3 hours and 58 minutes4 days agoACIS-S with High Energy Transmission Grating (HETG)XMMNonen/a20h 19m 32.4s+38° 43' 54.0"Cyg
Perseus clusterCluster of Galaxies3 hours3 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
V444 CygWolf-Rayet4 hours and 10 minutes3 days agoACIS-S with High Energy Transmission Grating (HETG)XMMNonen/a20h 19m 32.4s+38° 43' 54.0"Cyg
Perseus clusterCluster of Galaxies2 hours and 58 minutes3 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
Center of COSMOS-WebUnidentified8 hours and 56 minutes3 days agoACIS-In/aNonen/a10h 00m 51.0s+02° 20' 33.6"Sex
CAL-ER (41912)50 minutes3 days agon/an/an/an/a05h 09m 59.9s+24° 02' 01.4"n/a
CAL-ER (41908)50 minutes2 days agon/an/an/an/a19h 15m 03.9s+12° 13' 42.4"n/a
GW170817Gravitational Wave Event3 hours and 10 minutes2 days agoACIS-SNRAONoneTime Critical13h 09m 48.1s-23° 22' 53.3"Hya
Center of COSMOS-WebUnidentified10 hours2 days agoACIS-In/aNonen/a10h 00m 51.0s+02° 20' 33.6"Sex
IRAS 04125+2902T Tauri Star3 hours and 43 minutes1 day agoACIS-Sn/aNonen/a04h 15m 42.8s+29° 09' 59.8"Tau
GW170817Gravitational Wave Event4 hours and 40 minutes1 day agoACIS-SNRAONoneTime Critical13h 09m 48.1s-23° 22' 53.3"Hya
IRAS 04125+2902T Tauri Star4 hours and 10 minutes21 hours agoACIS-Sn/aNonen/a04h 15m 42.8s+29° 09' 59.8"Tau
B2.2 2117+25Radio Source4 hours and 25 minutes17 hours agoACIS-Sn/aNonen/a21h 20m 07.7s+25° 51' 03.0"Vul
IRAS 04125+2902T Tauri Star3 hours and 20 minutes11 hours agoACIS-Sn/aNonen/a04h 15m 42.8s+29° 09' 59.8"Tau
B2.2 2120+26Radio Source4 hours and 26 minutes8 hours agoACIS-Sn/aNonen/a21h 22m 53.2s+26° 40' 10.7"Vul
PSZ2G144.99-24.64Cluster of Galaxies2 hours and 40 minutesnowACIS-In/aNonen/a02h 28m 45.4s+34° 01' 37.2"Tri
Mrk 317Active Galaxy Nucleus Candidate2 hours and 46 minutesin 19 minutesACIS-Sn/aNonen/a23h 13m 48.3s+23° 49' 14.0"Peg
CAL-ER (41904)50 minutesin 4 hoursn/an/an/an/a08h 00m 31.7s-41° 08' 53.9"n/a
CAL-ER (41903)50 minutesin 13 hoursn/an/an/an/a22h 29m 56.9s+49° 37' 02.3"n/a
Perseus clusterCluster of Galaxies4 hours and 10 minutesin 14 hoursACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
B2.4 2111+23Radio Source4 hours and 26 minutesin 19 hoursACIS-Sn/aNonen/a21h 13m 20.2s+23° 21' 55.4"Vul
Perseus clusterCluster of Galaxies3 hours and 53 minutesin 1 dayACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
Cygnus X-2Low Mass X-ray Binary4 hours and 26 minutesin 1 dayACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a21h 44m 41.2s+38° 19' 17.1"Cyg
NGC3239Active Galaxy Nucleus Candidate2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a10h 25m 04.9s+17° 09' 49.3"Leo
3CR 152Radio Source4 hours and 43 minutesin 2 daysACIS-Sn/aNonen/a06h 04m 28.6s+20° 21' 21.0"Ori
GW170817Gravitational Wave Event4 hours and 10 minutesin 2 daysACIS-SNRAONoneTime Critical13h 09m 48.1s-23° 22' 53.3"Hya
3CR 152Radio Source4 hours and 43 minutesin 2 daysACIS-Sn/aNonen/a06h 04m 28.6s+20° 21' 21.0"Ori
GW170817Gravitational Wave Event4 hours and 10 minutesin 2 daysACIS-SNRAONoneTime Critical13h 09m 48.1s-23° 22' 53.3"Hya
Center of COSMOS-WebUnidentified8 hours and 53 minutesin 2 daysACIS-In/aNonen/a10h 01m 21.0s+02° 17' 49.5"Sex
CAL-ER (41902)50 minutesin 3 daysn/an/an/an/a05h 31m 12.0s+20° 23' 60.0"n/a
CAL-ER (41901)50 minutesin 3 daysn/an/an/an/a04h 56m 24.0s+20° 41' 60.0"n/a
CAL-ER (41900)50 minutesin 3 daysn/an/an/an/a22h 07m 60.0s-34° 47' 60.0"n/a