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 10 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
VLSSr J031859.0+575527Radio Source3 hours and 35 minutes3 days agoACIS-In/aNonen/a03h 18m 57.8s+57° 54' 59.2"Cam
NGC4540Galaxy towards a Group of Galaxies3 hours and 2 minutes3 days agoACIS-Sn/aNonen/a12h 34m 50.8s+15° 33' 04.7"Com
VLSSr J031859.0+575527Radio Source3 hours and 35 minutes3 days agoACIS-In/aNonen/a03h 18m 57.8s+57° 54' 59.2"Cam
NGC4540Galaxy towards a Group of Galaxies3 hours and 2 minutes3 days agoACIS-Sn/aNonen/a12h 34m 50.8s+15° 33' 04.7"Com
VLSSr J031859.0+575527Radio Source3 hours and 20 minutes3 days agoACIS-In/aNonen/a03h 18m 57.8s+57° 54' 59.2"Cam
CAL-ER (41570)50 minutes2 days agon/an/an/an/a13h 02m 59.7s-04° 50' 33.9"n/a
CAL-ER (41567)15 minutes and 40 seconds2 days agon/an/an/an/a03h 11m 39.4s+45° 35' 33.3"n/a
VLSSr J031859.0+575527Radio Source3 hours and 3 minutes2 days agoACIS-In/aNonen/a03h 18m 57.8s+57° 54' 59.2"Cam
NGC2566Galaxy towards a Group of Galaxies7 hours and 41 minutes2 days agoACIS-Sn/aNonen/a08h 18m 45.6s-25° 29' 58.2"Pup
AN UMaCataclysmic Binary7 hours and 36 minutes2 days agoACIS-S with High Energy Transmission Grating (HETG)n/aNonen/a11h 04m 25.7s+45° 03' 13.9"UMa
2RXS J080121.5+590256Unidentified5 hours and 33 minutes1 day agoACIS-Sn/aNonen/a08h 01m 20.8s+59° 02' 50.8"Lyn
NGC4941Seyfert 2 Galaxy3 hours and 3 minutes22 hours agoACIS-Sn/aNonen/a13h 04m 13.1s-05° 33' 05.8"Vir
1RXS J021649.0+703552X-ray source5 hours and 33 minutes19 hours agoACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
NGC4941Seyfert 2 Galaxy3 hours and 20 minutes13 hours agoACIS-Sn/aNonen/a13h 04m 13.1s-05° 33' 05.8"Vir
1RXS J021649.0+703552X-ray source5 hours and 33 minutes8 hours agoACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
NGC4941Seyfert 2 Galaxy3 hours and 3 minutesnowACIS-Sn/aNonen/a13h 04m 13.1s-05° 33' 05.8"Vir
1RXS J021649.0+703552X-ray source2 hours and 46 minutesin 2 hoursACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
CAL-ER (41566)50 minutesin 5 hoursn/an/an/an/a04h 35m 02.9s+16° 37' 01.2"n/a
CAL-ER (41565)50 minutesin 6 hoursn/an/an/an/a12h 16m 28.1s-03° 24' 13.7"n/a
CAL-ER (41564)15 minutesin 8 hoursn/an/an/an/a04h 35m 02.9s+16° 37' 01.2"n/a
CAL-ER (41563)50 minutesin 9 hoursn/an/an/an/a12h 16m 28.1s-03° 24' 13.7"n/a
CAL-ER (41562)15 minutesin 13 hoursn/an/an/an/a04h 35m 02.9s+16° 37' 01.2"n/a
MKN421BL Lac - type object8 hours and 20 minutesin 15 hoursACIS-S with Low Energy Transmission Grating (LETG)n/aNoneTime Critical, Monitoring11h 04m 27.2s+38° 12' 31.7"UMa
RGB_J0710p591_s1Unidentified2 hours and 46 minutesin 23 hoursACIS-Sn/aNonen/a07h 11m 09.2s+59° 07' 29.4"Lyn
NGC4540Galaxy towards a Group of Galaxies2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a12h 34m 50.8s+15° 33' 04.7"Com
1RXS J021649.0+703552X-ray source2 hours and 46 minutesin 1 dayACIS-In/aNonen/a02h 16m 49.0s+70° 35' 52.1"Cas
CAL-ER (41561)15 minutesin 1 dayn/an/an/an/a16h 41m 58.7s+44° 02' 53.9"n/a
NGC5728Seyfert 2 Galaxy2 hours and 46 minutesin 1 dayACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
CAL-ER (41560)15 minutesin 2 daysn/an/an/an/a12h 34m 02.7s-12° 09' 13.0"n/a
AT 2025aarmUnidentified4 hours and 10 minutesin 2 daysACIS-Sn/aIntermediateTime Critical04h 32m 12.4s-05° 22' 39.3"Eri
CAL-ER (41559)15 minutesin 2 daysn/an/an/an/a12h 34m 02.7s-12° 09' 13.0"n/a
NGC5728Seyfert 2 Galaxy2 hours and 46 minutesin 2 daysACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
AM2107-474Seyfert 2 Galaxy4 hours and 10 minutesin 2 daysACIS-SNOAONonen/a21h 10m 31.2s-47° 30' 32.0"Ind
NGC5728Seyfert 2 Galaxy2 hours and 46 minutesin 2 daysACIS-Sn/aNonen/a14h 42m 23.9s-17° 15' 11.2"Lib
AM2107-474Seyfert 2 Galaxy4 hours and 10 minutesin 2 daysACIS-SNOAONonen/a21h 10m 31.2s-47° 30' 32.0"Ind
2MASX J07233444-5610432Emission-line galaxy2 hours and 46 minutesin 3 daysACIS-Sn/aNonen/a07h 23m 34.4s-56° 10' 43.1"Car
SDSS J093401.24+245342.5Unidentified2 hours and 43 minutesin 3 daysACIS-SHSTNonen/a09h 34m 01.2s+24° 53' 42.4"Leo
CAL-ER (41558)15 minutesin 3 daysn/an/an/an/a13h 04m 13.4s-04° 41' 06.4"n/a