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 20 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
SDSS J125354.49+262435.6	Quasar Candidate	3 hours and 58 minutes	4 days ago	ACIS-S	n/a	None	n/a	12^h 53^m 54.5^s	+26° 24' 35.6"	Com
Perseus cluster	Cluster of Galaxies	3 hours and 5 minutes	4 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
IC2604	Galaxy in Pair of Galaxies	1 hour and 49 minutes	3 days ago	ACIS-S	n/a	None	n/a	10^h 49^m 25.0^s	+32° 46' 21.7"	LMi
ZwCl 0857.9+2107	Unidentified	9 hours and 41 minutes	3 days ago	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
CAL-ER (41933)		50 minutes	3 days ago	n/a	n/a	n/a	n/a	04^h 10^m 11.9^s	+23° 38' 03.4"	n/a
CAL-ER (41930)		50 minutes	2 days ago	n/a	n/a	n/a	n/a	05^h 25^m 29.7^s	+32° 37' 05.2"	n/a
BOSS1348	Spectroscopic Binary	4 hours	2 days ago	ACIS-I	n/a	None	n/a	13^h 48^m 14.4^s	+23° 58' 48.0"	Boo
Perseus cluster	Cluster of Galaxies	2 hours and 45 minutes	2 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
NGC 4051	Seyfert 1 Galaxy	8 hours and 29 minutes	2 days ago	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	12^h 03^m 09.6^s	+44° 31' 52.7"	UMa
Perseus cluster	Cluster of Galaxies	2 hours and 46 minutes	2 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
NGC 4051	Seyfert 1 Galaxy	3 hours and 21 minutes	1 day ago	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	12^h 03^m 09.6^s	+44° 31' 52.7"	UMa
Perseus cluster	Cluster of Galaxies	2 hours and 46 minutes	1 day ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
BOSS1348	Spectroscopic Binary	4 hours and 10 minutes	1 day ago	ACIS-I	n/a	None	n/a	13^h 48^m 14.4^s	+23° 58' 48.0"	Boo
Perseus cluster	Cluster of Galaxies	3 hours and 3 minutes	22 hours ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
AN UMa	Cataclysmic Binary	8 hours and 20 minutes	19 hours ago	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	11^h 04^m 25.7^s	+45° 03' 13.9"	UMa
Perseus cluster	Cluster of Galaxies	3 hours and 20 minutes	9 hours ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41928)		50 minutes	now	n/a	n/a	n/a	n/a	04^h 04^m 15.8^s	+28° 02' 17.2"	n/a
CAL-ER (41927)		50 minutes	in 2 hours	n/a	n/a	n/a	n/a	01^h 57^m 60.0^s	+53° 00' 00.0"	n/a
CAL-ER (41926)		50 minutes	in 6 hours	n/a	n/a	n/a	n/a	15^h 34^m 13.6^s	+26° 55' 32.9"	n/a
Cygnus X-2	Low Mass X-ray Binary	11 hours and 55 minutes	in 8 hours	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	21^h 44^m 41.2^s	+38° 19' 17.1"	Cyg
Perseus cluster	Cluster of Galaxies	2 hours and 41 minutes	in 21 hours	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41925)		15 minutes	in 24 hours	n/a	n/a	n/a	n/a	16^h 25^m 10.5^s	+51° 41' 02.0"	n/a
PSR J1015-5719	Pulsar	2 hours and 46 minutes	in 1 day	ACIS-I	n/a	None	n/a	10^h 15^m 38.0^s	-57° 19' 12.8"	Car
zeta Tau	Be Star	3 hours and 41 minutes	in 1 day	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	05^h 37^m 38.7^s	+21° 08' 33.1"	Tau
PSR J1015-5719	Pulsar	2 hours and 46 minutes	in 1 day	ACIS-I	n/a	None	n/a	10^h 15^m 38.0^s	-57° 19' 12.8"	Car
NGC2566	Galaxy towards a Group of Galaxies	5 hours and 33 minutes	in 1 day	ACIS-S	n/a	None	n/a	08^h 18^m 45.6^s	-25° 29' 58.2"	Pup
zeta Tau	Be Star	3 hours and 41 minutes	in 2 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	05^h 37^m 38.7^s	+21° 08' 33.1"	Tau
PSR J1015-5719	Pulsar	2 hours and 46 minutes	in 2 days	ACIS-I	n/a	None	n/a	10^h 15^m 38.0^s	-57° 19' 12.8"	Car
CAL-ER (41924)		15 minutes	in 2 days	n/a	n/a	n/a	n/a	12^h 13^m 12.0^s	-09° 35' 60.0"	n/a
zeta Tau	Be Star	3 hours and 40 minutes	in 2 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	05^h 37^m 38.7^s	+21° 08' 33.1"	Tau
1eRASS J120844.7+144821	Unidentified	4 hours and 10 minutes	in 2 days	ACIS-S	n/a	None	n/a	12^h 08^m 44.9^s	+14° 48' 20.3"	Com
CAL-ER (41923)		50 minutes	in 2 days	n/a	n/a	n/a	n/a	05^h 03^m 09.2^s	+27° 08' 30.1"	n/a
CAL-ER (41922)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	03^h 34^m 52.9^s	+18° 21' 28.8"	n/a
CAL-ER (41921)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	19^h 57^m 36.0^s	-19° 48' 00.0"	n/a
CAL-ER (41920)		16 minutes and 40 seconds	in 3 days	n/a	n/a	n/a	n/a	03^h 35^m 45.1^s	+19° 17' 25.8"	n/a
CAL-ER (41919)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	05^h 05^m 20.3^s	+27° 04' 34.7"	n/a
NGC4654	HII Galaxy	4 hours and 10 minutes	in 3 days	ACIS-S	n/a	None	n/a	12^h 43^m 56.6^s	+13° 07' 35.4"	Vir
zeta Tau	Be Star	2 hours and 50 minutes	in 3 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	05^h 37^m 38.7^s	+21° 08' 33.1"	Tau
NGC4654	HII Galaxy	4 hours and 10 minutes	in 3 days	ACIS-S	n/a	None	n/a	12^h 43^m 56.6^s	+13° 07' 35.4"	Vir