The Chandra schedule

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 18 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.

Target	Object type	Exposure time	Start	Instrument	Joint with	Turnaround	Constraints	Right Ascension	Declination	Constellation
NGC4207	Galaxy towards a Group of Galaxies	3 hours and 33 minutes	4 days ago	ACIS-S	n/a	None	n/a	12^h 15^m 30.5^s	+09° 35' 05.6"	Vir
CAL-ER (41710)		50 minutes	4 days ago	n/a	n/a	n/a	n/a	10^h 35^m 00.5^s	+12° 15' 08.7"	n/a
CAL-ER (41708)		50 minutes	4 days ago	n/a	n/a	n/a	n/a	15^h 54^m 33.6^s	-33° 18' 09.6"	n/a
Abell 2255	Cluster of Galaxies	2 hours and 46 minutes	3 days ago	ACIS-I	n/a	None	n/a	17^h 12^m 50.0^s	+64° 03' 10.6"	Dra
NGC3626	Galaxy towards a Group of Galaxies	3 hours and 51 minutes	3 days ago	ACIS-S	n/a	None	n/a	11^h 20^m 03.8^s	+18° 21' 24.5"	Leo
ZTF J1905+3134	Star	2 hours and 45 minutes	3 days ago	ACIS-S	n/a	None	n/a	19^h 05^m 11.4^s	+31° 34' 32.3"	Lyr
Perseus cluster	Cluster of Galaxies	8 hours and 15 minutes	3 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
Center of COSMOS-Web	Unidentified	2 hours and 54 minutes	2 days ago	ACIS-I	n/a	None	n/a	09^h 59^m 48.0^s	+02° 00' 44.4"	Sex
Perseus cluster	Cluster of Galaxies	8 hours and 47 minutes	2 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
Center of COSMOS-Web	Unidentified	5 hours and 14 minutes	2 days ago	ACIS-I	n/a	None	n/a	09^h 59^m 48.0^s	+02° 00' 44.4"	Sex
ZTF J1905+3134	Star	3 hours and 2 minutes	2 days ago	ACIS-S	n/a	None	n/a	19^h 05^m 11.4^s	+31° 34' 32.3"	Lyr
Perseus cluster	Cluster of Galaxies	5 hours and 14 minutes	1 day ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41702)		50 minutes	1 day ago	n/a	n/a	n/a	n/a	10^h 06^m 17.6^s	+13° 24' 24.5"	n/a
CAL-ER (41700)		50 minutes	21 hours ago	n/a	n/a	n/a	n/a	13^h 45^m 12.0^s	-45° 17' 60.0"	n/a
Center of COSMOS-Web	Unidentified	3 hours and 35 minutes	16 hours ago	ACIS-I	n/a	None	n/a	09^h 59^m 50.8^s	+02° 26' 01.6"	Sex
MRCB0157-311	Unidentified	2 hours and 46 minutes	11 hours ago	ACIS-S	n/a	None	n/a	02^h 00^m 12.1^s	-30° 53' 24.1"	For
Center of COSMOS-Web	Unidentified	4 hours and 10 minutes	7 hours ago	ACIS-I	n/a	None	n/a	09^h 59^m 50.8^s	+02° 26' 01.6"	Sex
MRCB0157-311	Unidentified	2 hours and 46 minutes	now	ACIS-S	n/a	None	n/a	02^h 00^m 12.1^s	-30° 53' 24.1"	For
Center of COSMOS-Web	Unidentified	3 hours and 20 minutes	in 1 hour	ACIS-I	n/a	None	n/a	09^h 59^m 50.8^s	+02° 26' 01.6"	Sex
CAL-ER (41699)		15 minutes	in 5 hours	n/a	n/a	n/a	n/a	03^h 47^m 52.1^s	-36° 27' 00.0"	n/a
ArLac	RS CVn Variable	1 hour and 11 minutes	in 6 hours	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
ArLac	RS CVn Variable	1 hour and 11 minutes	in 8 hours	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
ArLac	RS CVn Variable	1 hour and 11 minutes	in 9 hours	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
SDSS J102258.41+123429.7	Quasar	3 hours and 20 minutes	in 11 hours	ACIS-S	n/a	None	n/a	10^h 22^m 58.4^s	+12° 34' 29.7"	Leo
Perseus cluster	Cluster of Galaxies	7 hours and 46 minutes	in 15 hours	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
SDSS J102258.41+123429.7	Quasar	3 hours and 36 minutes	in 23 hours	ACIS-S	n/a	None	n/a	10^h 22^m 58.4^s	+12° 34' 29.7"	Leo
Perseus cluster	Cluster of Galaxies	8 hours and 20 minutes	in 1 day	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41698)		50 minutes	in 1 day	n/a	n/a	n/a	n/a	10^h 07^m 60.0^s	+16° 00' 00.0"	n/a
CAL-ER (41697)		50 minutes	in 2 days	n/a	n/a	n/a	n/a	03^h 41^m 21.7^s	+28° 40' 25.7"	n/a
CAL-ER (41696)		50 minutes	in 2 days	n/a	n/a	n/a	n/a	00^h 08^m 24.0^s	+74° 30' 00.0"	n/a
CAL-ER (41695)		33 minutes and 20 seconds	in 2 days	n/a	n/a	n/a	n/a	10^h 39^m 60.0^s	+17° 11' 60.0"	n/a
CAL-ER (41694)		33 minutes and 20 seconds	in 2 days	n/a	n/a	n/a	n/a	16^h 52^m 00.0^s	+29° 00' 00.0"	n/a
NGC4654	HII Galaxy	4 hours and 10 minutes	in 2 days	ACIS-S	n/a	None	n/a	12^h 43^m 56.6^s	+13° 07' 35.4"	Vir
GS 1354-64	High Mass X-ray Binary	8 hours and 20 minutes	in 2 days	ACIS-S with High Energy Transmission Grating (HETG)	NuSTAR,NRAO,NOAO	Intermediate	Time Critical, Monitoring	13^h 58^m 09.7^s	-64° 44' 05.3"	Cir
Center of COSMOS-Web	Unidentified	5 hours and 33 minutes	in 3 days	ACIS-I	n/a	None	n/a	10^h 00^m 29.1^s	+02° 05' 31.3"	Sex
CAL-ER (41693)		15 minutes	in 3 days	n/a	n/a	n/a	n/a	03^h 47^m 52.1^s	-36° 27' 00.0"	n/a
ArLac	RS CVn Variable	1 hour and 11 minutes	in 3 days	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
ArLac	RS CVn Variable	1 hour and 11 minutes	in 3 days	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
Perseus cluster	Cluster of Galaxies	4 hours and 26 minutes	in 3 days	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per