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 5 days and 11 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
PG 1004+130	Seyfert 1 Galaxy	2 hours and 57 minutes	4 days ago	ACIS-S	n/a	None	n/a	10^h 07^m 26.1^s	+12° 48' 56.1"	Leo
SNR G1.9+0.3	SuperNova Remnant	3 hours and 51 minutes	4 days ago	ACIS-S	n/a	None	n/a	17^h 48^m 45.0^s	-27° 10' 00.1"	Sgr
ESO324-008	Emission-line galaxy	1 hour and 40 minutes	3 days ago	ACIS-S	n/a	None	n/a	13^h 20^m 54.0^s	-39° 16' 43.4"	Cen
Orion Nebula snapshot 4	Unidentified	3 hours and 19 minutes	3 days ago	ACIS-I	JWST	None	Time Critical	05^h 35^m 16.7^s	-05° 22' 45.0"	Ori
Orion Nebula snapshot 5	Unidentified	3 hours and 15 minutes	3 days ago	ACIS-I	JWST	None	Time Critical	05^h 35^m 16.7^s	-05° 22' 45.0"	Ori
Perseus cluster	Cluster of Galaxies	4 hours and 41 minutes	3 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
Orion Nebula snapshot 6	Unidentified	3 hours and 2 minutes	3 days ago	ACIS-I	JWST	None	Time Critical	05^h 35^m 16.7^s	-05° 22' 45.0"	Ori
SDSSJ085640.78+105755.8	Seyfert 1 Galaxy	2 hours and 45 minutes	3 days ago	ACIS-S	n/a	None	n/a	08^h 56^m 40.8^s	+10° 57' 55.8"	Cnc
[vD2023]1	Unidentified	3 hours and 10 minutes	3 days ago	ACIS-I	n/a	None	n/a	02^h 41^m 45.7^s	-08° 21' 02.0"	Cet
Perseus cluster	Cluster of Galaxies	12 hours and 22 minutes	2 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41747)		50 minutes	2 days ago	n/a	n/a	n/a	n/a	09^h 03^m 57.4^s	+19° 58' 22.9"	n/a
CAL-ER (41745)		1 hour and 35 minutes	2 days ago	n/a	n/a	n/a	n/a	02^h 00^m 07.3^s	+42° 59' 01.2"	n/a
ZwCl 0857.9+2107	Unidentified	4 hours and 26 minutes	1 day ago	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
PGC101434	Unidentified	2 hours and 46 minutes	1 day ago	ACIS-S	n/a	None	n/a	00^h 32^m 18.6^s	+15° 00' 14.2"	Psc
ZwCl 0857.9+2107	Unidentified	2 hours and 46 minutes	24 hours ago	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
PGC101434	Unidentified	2 hours and 46 minutes	20 hours ago	ACIS-S	n/a	None	n/a	00^h 32^m 18.6^s	+15° 00' 14.2"	Psc
ZwCl 0857.9+2107	Unidentified	3 hours and 16 minutes	16 hours ago	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
[vD2023]1	Unidentified	5 hours and 16 minutes	13 hours ago	ACIS-I	n/a	None	n/a	02^h 41^m 45.7^s	-08° 21' 02.0"	Cet
ZwCl 0857.9+2107	Unidentified	4 hours and 13 minutes	7 hours ago	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
G 132-50	High Proper Motion Star	1 hour and 23 minutes	3 hours ago	ACIS-S	n/a	None	n/a	01^h 03^m 40.3^s	+40° 51' 26.7"	And
CMZ Molecular Cloud	Unidentified	3 hours and 28 minutes	now	ACIS-I	n/a	None	n/a	17^h 46^m 12.1^s	-28° 53' 19.3"	Sgr
RMJ093723.8+125312.3	Unidentified	2 hours and 46 minutes	in 3 hours	ACIS-I	n/a	None	n/a	09^h 37^m 23.9^s	+12° 53' 12.3"	Leo
GS 1354-64	High Mass X-ray Binary	8 hours and 20 minutes	in 7 hours	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
BOSS1348	Spectroscopic Binary	2 hours and 6 minutes	in 16 hours	ACIS-I	n/a	None	n/a	13^h 48^m 14.4^s	+23° 58' 48.0"	Boo
CAL-ER (41744)		33 minutes and 20 seconds	in 19 hours	n/a	n/a	n/a	n/a	09^h 44^m 24.0^s	+14° 18' 00.0"	n/a
CAL-ER (41743)		33 minutes and 20 seconds	in 21 hours	n/a	n/a	n/a	n/a	09^h 03^m 60.0^s	+20° 00' 00.0"	n/a
CAL-ER (41742)		50 minutes	in 22 hours	n/a	n/a	n/a	n/a	23^h 36^m 48.0^s	+22° 30' 00.0"	n/a
CAL-ER (41741)		1 hour and 31 minutes	in 1 day	n/a	n/a	n/a	n/a	02^h 00^m 00.0^s	+43° 00' 00.0"	n/a
CAL-ER (41740)		16 minutes and 40 seconds	in 1 day	n/a	n/a	n/a	n/a	09^h 03^m 60.0^s	+20° 00' 00.0"	n/a
CAL-ER (41739)		16 minutes and 40 seconds	in 1 day	n/a	n/a	n/a	n/a	09^h 56^m 00.0^s	+13° 00' 00.0"	n/a
CMZ Molecular Cloud	Unidentified	1 hour and 56 minutes	in 1 day	ACIS-I	n/a	None	n/a	17^h 46^m 12.1^s	-28° 53' 19.3"	Sgr
Center of COSMOS-Web	Unidentified	5 hours	in 1 day	ACIS-I	n/a	None	n/a	09^h 59^m 59.0^s	+02° 08' 15.4"	Sex
Cir X-1	High Mass X-ray Binary	7 hours and 30 minutes	in 2 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	15^h 20^m 41.0^s	-57° 09' 60.0"	Cir
Center of COSMOS-Web	Unidentified	6 hours and 6 minutes	in 2 days	ACIS-I	n/a	None	n/a	09^h 59^m 59.0^s	+02° 08' 15.4"	Sex
Cir X-1	High Mass X-ray Binary	7 hours and 46 minutes	in 2 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	15^h 20^m 41.0^s	-57° 09' 60.0"	Cir
PGC031877	Galaxy towards a Group of Galaxies	5 hours and 33 minutes	in 3 days	ACIS-S	n/a	None	n/a	10^h 42^m 00.4^s	+12° 20' 05.7"	Leo
CAL-ER (41738)			in 3 days	n/a	n/a	n/a	n/a	13^h 30^m 28.6^s	+25° 53' 23.6"	n/a
GRB 221009A	Gamma-ray Burst	4 hours and 10 minutes	in 3 days	ACIS-S	n/a	Slow	Time Critical, Monitoring	19^h 13^m 03.5^s	+19° 46' 24.2"	Sge
CAL-ER (41737)			in 3 days	n/a	n/a	n/a	n/a	16^h 25^m 41.0^s	-13° 37' 59.9"	n/a
G292.0+1.8	SuperNova Remnant	8 hours and 20 minutes	in 3 days	ACIS-I	XMM	None	n/a	11^h 24^m 35.6^s	-59° 15' 56.4"	Cen