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 9 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
IIZw171Unidentified2 hours and 41 minutes4 days agoACIS-Sn/aNonen/a22h 11m 53.9s+18° 41' 49.9"Peg
Perseus clusterCluster of Galaxies3 hours and 2 minutes3 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
PG2304+042Seyfert 1 Galaxy2 hours and 41 minutes3 days agoACIS-Sn/aNonen/a23h 07m 02.9s+04° 32' 57.0"Psc
Perseus clusterCluster of Galaxies3 hours and 2 minutes3 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
SDSSJ233504.22-084506.4Unidentified2 hours and 45 minutes3 days agoACIS-Sn/aNonen/a23h 35m 04.2s-08° 45' 06.4"Aqr
Perseus clusterCluster of Galaxies3 hours and 2 minutes3 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 30' 42.2"Per
Center of COSMOS-WebUnidentified3 hours and 51 minutes3 days agoACIS-In/aNonen/a09h 59m 50.8s+02° 26' 01.6"Sex
SN 1986JSuperNova4 hours and 8 minutes3 days agoACIS-Sn/aNoneTime Critical, Monitoring02h 22m 31.3s+42° 19' 56.4"And
SDSS J142846.71+172353.1Unidentified2 hours and 46 minutes2 days agoACIS-Sn/aNonen/a14h 28m 46.7s+17° 23' 53.2"Boo
2MASX J07040344+3830246Galaxy2 hours and 46 minutes2 days agoACIS-Sn/aNonen/a07h 04m 03.5s+38° 30' 24.8"Aur
TV CassiopeiaSpectroscopic Binary3 hours and 7 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a00h 19m 18.8s+59° 08' 20.5"Cas
AT2025aarmUnidentified4 hours and 10 minutes2 days agoACIS-Sn/aImmediateTime Critical04h 32m 12.4s-05° 22' 39.6"Eri
CAL-ER (41857)50 minutes2 days agon/an/an/an/a06h 03m 42.0s+11° 54' 55.8"n/a
CAL-ER (41854)50 minutes1 day agon/an/an/an/a14h 13m 53.5s-37° 27' 43.7"n/a
IC 443SuperNova Remnant2 hours and 45 minutes1 day agoACIS-Sn/aNonen/a06h 17m 05.0s+22° 21' 27.0"Gem
NGC5728Seyfert 2 Galaxy4 hours and 10 minutes1 day agoACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
IC 443SuperNova Remnant2 hours and 55 minutes21 hours agoACIS-Sn/aNonen/a06h 17m 05.0s+22° 21' 27.0"Gem
NGC5728Seyfert 2 Galaxy4 hours and 10 minutes17 hours agoACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
IC 443SuperNova Remnant2 hours and 55 minutes12 hours agoACIS-Sn/aNonen/a06h 17m 05.0s+22° 21' 27.0"Gem
NGC5728Seyfert 2 Galaxy4 hours and 26 minutes9 hours agoACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
CIZA J0635.0+2231Cluster of Galaxies2 hours and 46 minutes4 hours agoACIS-In/aNonen/a06h 35m 03.9s+22° 31' 34.0"Gem
NGC4536HII Galaxy9 hours and 26 minutesnowACIS-Sn/aNonen/a12h 34m 27.1s+02° 11' 16.4"Vir
MKN421BL Lac - type object15 hoursin 9 hoursACIS-S with Low Energy Transmission Grating (LETG)n/aNoneTime Critical, Monitoring11h 04m 27.2s+38° 12' 31.7"UMa
CAL-ER (41853)50 minutesin 24 hoursn/an/an/an/a06h 44m 14.9s+27° 03' 23.4"n/a
CAL-ER (41852)50 minutesin 1 dayn/an/an/an/a14h 35m 36.0s-12° 54' 00.0"n/a
CAL-ER (41851)33 minutes and 20 secondsin 1 dayn/an/an/an/a07h 22m 24.0s-07° 12' 00.0"n/a
CAL-ER (41850)50 minutesin 1 dayn/an/an/an/a06h 32m 23.6s+18° 30' 05.0"n/a
CAL-ER (41849)50 minutesin 1 dayn/an/an/an/a15h 07m 58.8s-60° 06' 49.3"n/a
NGC 4579Seyfert Galaxy4 hours and 10 minutesin 1 dayACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a12h 37m 43.6s+11° 49' 05.1"Vir
Vela X-1High Mass X-ray Binary4 hours and 10 minutesin 2 daysACIS-S with High Energy Transmission Grating (HETG)n/aNoneTime Critical, Constrained09h 02m 06.9s-40° 33' 16.9"Vel
PSRB0656p14_s2Unidentified2 hours and 46 minutesin 2 daysACIS-Sn/aNonen/a06h 59m 46.8s+14° 21' 48.1"Gem
NGC5728Seyfert 2 Galaxy3 hours and 53 minutesin 2 daysACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
MKN421BL Lac - type object9 hours and 58 minutesin 2 daysACIS-S with Low Energy Transmission Grating (LETG)n/aNoneTime Critical, Monitoring11h 04m 27.2s+38° 12' 31.7"UMa
TV CassiopeiaSpectroscopic Binary2 hours and 46 minutesin 3 daysACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a00h 19m 18.8s+59° 08' 20.5"Cas
UGC 03475Active Galaxy Nucleus Candidate2 hours and 46 minutesin 3 daysACIS-In/aNonen/a06h 30m 28.8s+39° 30' 13.6"Aur
B2.1 2156+29Quasar4 hours and 26 minutesin 3 daysACIS-Sn/aNonen/a21h 58m 42.1s+29° 59' 04.6"Peg
CAL-ER (41848)in 3 daysn/an/an/an/a01h 46m 58.3s+28° 28' 26.0"n/a
IC 443SuperNova Remnant3 hours and 45 minutesin 3 daysACIS-Sn/aNonen/a06h 17m 05.0s+22° 21' 27.0"Gem
CLJ222321.8-522749Unidentified4 hours and 10 minutesin 3 daysACIS-In/aNonen/a22h 23m 21.8s-52° 27' 49.4"Gru