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 14 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
1RXS J161700.0-313639High Proper Motion Star5 hours and 28 minutes4 days agoACIS-Sn/aNonen/a16h 16m 58.9s-31° 36' 37.8"Sco
NGC 1358Seyfert 2 Galaxy4 hours and 18 minutes4 days agoACIS-SNuSTARNoneTime Critical, Monitoring03h 33m 39.7s-05° 05' 22.2"Eri
NGC 1358Seyfert 2 Galaxy4 hours and 5 minutes3 days agoACIS-SNuSTARNoneTime Critical, Monitoring03h 33m 39.7s-05° 05' 22.2"Eri
2MASX J22373491-1925343Seyfert 2 Galaxy3 hours and 1 minute3 days agoACIS-SHSTNonen/a22h 37m 34.9s-19° 25' 34.4"Aqr
Perseus cluster NUnidentified7 hours and 58 minutes3 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 35' 22.8"Per
SDSSJ220153.56-083443.7Seyfert 1 Galaxy3 hours and 2 minutes3 days agoACIS-Sn/aNonen/a22h 01m 53.6s-08° 34' 43.7"Aqr
Perseus cluster NUnidentified4 hours and 51 minutes2 days agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 35' 22.8"Per
2MASX J22373491-1925343Seyfert 2 Galaxy3 hours and 36 minutes2 days agoACIS-SHSTNonen/a22h 37m 34.9s-19° 25' 34.4"Aqr
CAL-ER (41235)1 hour and 56 minutes2 days agon/an/an/an/a05h 31m 60.0s+02° 47' 60.0"n/a
CAL-ER (41234)50 minutes2 days agon/an/an/an/a22h 08m 05.0s-16° 38' 40.2"n/a
CAL-ER (41233)50 minutes2 days agon/an/an/an/a21h 25m 36.0s-11° 35' 09.6"n/a
CAL-ER (41232)50 minutes2 days agon/an/an/an/a12h 53m 43.2s+46° 33' 21.6"n/a
CAL-ER (41231)15 minutes2 days agon/an/an/an/a21h 13m 39.4s-07° 39' 00.0"n/a
CAL-ER (41230)2 days agon/an/an/an/a23h 34m 56.9s+39° 09' 20.9"n/a
Perseus cluster SUnidentified7 hours and 46 minutes1 day agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 25' 24.8"Per
CAL-ER (41229)1 day agon/an/an/an/a01h 12m 03.3s+12° 13' 16.3"n/a
2MASX J22373491-1925343Seyfert 2 Galaxy3 hours and 20 minutes1 day agoACIS-SHSTNonen/a22h 37m 34.9s-19° 25' 34.4"Aqr
CAL-ER (41228)24 hours agon/an/an/an/a23h 30m 01.2s+38° 45' 29.2"n/a
Perseus cluster SUnidentified9 hours and 43 minutes23 hours agoACIS-In/aNoneTime Critical03h 19m 48.2s+41° 25' 24.8"Per
CAL-ER (41227)14 hours agon/an/an/an/a23h 30m 01.2s+38° 45' 29.2"n/a
2MASX J22373491-1925343Seyfert 2 Galaxy3 hours and 53 minutes13 hours agoACIS-SHSTNonen/a22h 37m 34.9s-19° 25' 34.4"Aqr
TDE 2025aarmUnidentified4 hours and 10 minutes9 hours agoACIS-Sn/aImmediateTime Critical04h 32m 12.4s-05° 22' 39.6"Eri
SDSSJ222203.73-092712.0Seyfert 1 Galaxy2 hours and 46 minutes4 hours agoACIS-Sn/aNonen/a22h 22m 03.7s-09° 27' 12.1"Aqr
Perseus cluster SUnidentified8 hours and 20 minutesnowACIS-In/aNoneTime Critical03h 19m 48.2s+41° 25' 24.8"Per
CAL-ER (41226)15 minutesin 9 hoursn/an/an/an/a15h 34m 20.4s-32° 27' 00.0"n/a
PSO J308.0416-21.2339Quasar4 hours and 26 minutesin 10 hoursACIS-Sn/aNonen/a20h 32m 10.0s-21° 14' 02.4"Cap
CAL-ER (41225)2 hours and 13 minutesin 15 hoursn/an/an/an/a13h 02m 20.6s-17° 50' 35.2"n/a
CAL-ER (41224)50 minutesin 18 hoursn/an/an/an/a21h 14m 28.4s-17° 52' 52.3"n/a
CAL-ER (41223)50 minutesin 20 hoursn/an/an/an/a14h 30m 36.0s-20° 38' 38.4"n/a
CAL-ER (41222)15 minutesin 1 dayn/an/an/an/a21h 14m 28.4s-17° 52' 52.3"n/a
CAL-ER (41221)15 minutesin 1 dayn/an/an/an/a21h 53m 01.0s-10° 02' 53.2"n/a
Perseus cluster SUnidentified9 hours and 43 minutesin 1 dayACIS-In/aNoneTime Critical03h 19m 48.2s+41° 25' 24.8"Per
Mrk915Seyfert 2 Galaxy2 hours and 46 minutesin 2 daysACIS-Sn/aNonen/a22h 36m 46.5s-12° 32' 42.8"Aqr
EP J223759.5+531421Unidentified5 hours and 33 minutesin 2 daysACIS-Sn/aImmediateTime Critical, Monitoring22h 37m 59.5s+53° 14' 21.0"Lac
Perseus cluster NUnidentified3 hours and 36 minutesin 2 daysACIS-In/aNoneTime Critical03h 19m 48.2s+41° 35' 22.8"Per
NGC 424Seyfert 1 Galaxy8 hours and 20 minutesin 2 daysACIS-Sn/aNonen/a01h 11m 27.6s-38° 05' 00.4"Scl