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
Center of COSMOS-Web	Unidentified	8 hours and 15 minutes	3 days ago	ACIS-I	n/a	None	n/a	10^h 00^m 48.2^s	+01° 55' 16.4"	Sex
SNR G1.9+0.3	SuperNova Remnant	3 hours and 32 minutes	3 days ago	ACIS-S	n/a	None	n/a	17^h 48^m 45.0^s	-27° 10' 00.1"	Sgr
PSR J1015-5719	Pulsar	6 hours and 2 minutes	2 days ago	ACIS-I	n/a	None	n/a	10^h 15^m 38.0^s	-57° 19' 12.8"	Car
CAL-ER (41442)		50 minutes	2 days ago	n/a	n/a	n/a	n/a	16^h 33^m 05.6^s	-25° 15' 41.1"	n/a
CAL-ER (41439)		50 minutes	2 days ago	n/a	n/a	n/a	n/a	08^h 12^m 39.2^s	+14° 30' 02.9"	n/a
LEDA 184063	Seyfert 2 Galaxy	3 hours and 44 minutes	2 days ago	ACIS-S	n/a	Intermediate	Time Critical, Monitoring	13^h 44^m 32.9^s	-22° 58' 01.4"	Hya
SN 2024ggi	SuperNova	11 hours and 6 minutes	1 day ago	ACIS-S	n/a	None	Time Critical	11^h 18^m 22.1^s	-32° 50' 15.3"	Hya
NGC 4593	Seyfert 1 Galaxy	2 hours and 46 minutes	23 hours ago	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	12^h 39^m 39.4^s	-05° 20' 39.0"	Vir
PSR J1015-5719	Pulsar	2 hours and 46 minutes	20 hours ago	ACIS-I	n/a	None	n/a	10^h 15^m 38.0^s	-57° 19' 12.8"	Car
LEDA 184063	Seyfert 2 Galaxy	4 hours and 3 minutes	17 hours ago	ACIS-S	n/a	Intermediate	Time Critical, Monitoring	13^h 44^m 32.9^s	-22° 58' 01.4"	Hya
Center of COSMOS-Web	Unidentified	4 hours and 31 minutes	12 hours ago	ACIS-I	n/a	None	n/a	09^h 59^m 18.0^s	+02° 03' 28.4"	Sex
PKS1552-331	Unidentified	2 hours and 46 minutes	7 hours ago	ACIS-S	n/a	None	n/a	15^h 55^m 18.1^s	-33° 19' 17.8"	Lup
ZwCl 0857.9+2107	Unidentified	4 hours and 10 minutes	now	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
IGR J15549-3740	Seyfert 2 Galaxy	2 hours and 46 minutes	in 1 hour	ACIS-S	n/a	None	n/a	15^h 54^m 46.8^s	-37° 38' 19.2"	Lup
ZwCl 0857.9+2107	Unidentified	4 hours and 10 minutes	in 5 hours	ACIS-S	NRAO	None	n/a	09^h 00^m 36.8^s	+20° 53' 40.1"	Cnc
2MASS J12300479-1323350	Double or Multiple Star	1 hour and 23 minutes	in 9 hours	ACIS-S	n/a	None	n/a	12^h 30^m 04.5^s	-13° 23' 36.2"	Crv
CAL-ER (41438)		15 minutes	in 12 hours	n/a	n/a	n/a	n/a	19^h 59^m 04.3^s	+17° 10' 19.9"	n/a
CAL-ER (41437)		50 minutes	in 12 hours	n/a	n/a	n/a	n/a	17^h 06^m 00.0^s	-20° 23' 60.0"	n/a
CAL-ER (41436)		50 minutes	in 17 hours	n/a	n/a	n/a	n/a	19^h 59^m 04.3^s	+17° 10' 19.9"	n/a
CAL-ER (41435)		50 minutes	in 18 hours	n/a	n/a	n/a	n/a	19^h 59^m 04.3^s	+17° 10' 19.9"	n/a
CAL-ER (41434)		15 minutes	in 19 hours	n/a	n/a	n/a	n/a	19^h 59^m 04.3^s	+17° 10' 19.9"	n/a
CAL-ER (41433)		15 minutes	in 20 hours	n/a	n/a	n/a	n/a	01^h 47^m 03.9^s	+57° 41' 16.8"	n/a
CAL-ER (41432)		15 minutes	in 21 hours	n/a	n/a	n/a	n/a	08^h 27^m 50.3^s	+13° 15' 06.1"	n/a
CAL-ER (41431)		15 minutes	in 22 hours	n/a	n/a	n/a	n/a	16^h 25^m 37.8^s	-22° 53' 45.2"	n/a
Center of COSMOS-Web	Unidentified	2 hours and 58 minutes	in 23 hours	ACIS-I	n/a	None	n/a	09^h 59^m 18.0^s	+02° 03' 28.4"	Sex
LEDA 184063	Seyfert 2 Galaxy	3 hours and 53 minutes	in 1 day	ACIS-S	n/a	Intermediate	Time Critical, Monitoring	13^h 44^m 32.9^s	-22° 58' 01.4"	Hya
2MASX J16242022-3311067	Seyfert 2 Galaxy	2 hours and 46 minutes	in 1 day	ACIS-S	n/a	None	n/a	16^h 24^m 20.2^s	-33° 11' 06.5"	Sco
Center of COSMOS-Web	Unidentified	6 hours and 23 minutes	in 1 day	ACIS-I	n/a	None	n/a	10^h 00^m 59.1^s	+02° 02' 47.3"	Sex
2RXS J161409.7-142143	Unidentified	2 hours and 46 minutes	in 2 days	ACIS-S	n/a	None	n/a	16^h 14^m 11.5^s	-14° 21' 30.6"	Sco
Center of COSMOS-Web	Unidentified	3 hours and 31 minutes	in 2 days	ACIS-I	n/a	None	n/a	09^h 59^m 50.8^s	+02° 26' 01.6"	Sex
HZ43	Double or multiple star	33 minutes and 20 seconds	in 2 days	HRC-I with Low Energy Transmission Grating (LETG)	n/a	None	Time Critical, Monitoring	13^h 16^m 21.5^s	+29° 05' 52.6"	Com
HZ43	Double or multiple star	33 minutes and 20 seconds	in 2 days	HRC-I with Low Energy Transmission Grating (LETG)	n/a	None	Time Critical, Monitoring	13^h 16^m 21.5^s	+29° 05' 52.6"	Com
NGC 4593	Seyfert 1 Galaxy	3 hours and 3 minutes	in 2 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	12^h 39^m 39.4^s	-05° 20' 39.0"	Vir
2RXS J161409.7-142143	Unidentified	2 hours and 46 minutes	in 2 days	ACIS-S	n/a	None	n/a	16^h 14^m 11.5^s	-14° 21' 30.6"	Sco
Center of COSMOS-Web	Unidentified	3 hours and 50 minutes	in 2 days	ACIS-I	n/a	None	n/a	09^h 59^m 50.8^s	+02° 26' 01.6"	Sex
SDSS J131249.15+225151.5	Galaxy	5 hours and 50 minutes	in 3 days	ACIS-S	n/a	None	n/a	13^h 12^m 49.2^s	+22° 51' 51.6"	Com
Cyg X-1	High Mass X-ray Binary	2 hours and 46 minutes	in 3 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	Immediate	Time Critical	19^h 58^m 21.7^s	+35° 12' 05.8"	Cyg
NGC4293	LINER-type Active Galaxy Nucleus	3 hours and 36 minutes	in 3 days	ACIS-S	n/a	None	n/a	12^h 21^m 13.0^s	+18° 22' 58.8"	Com
CAL-ER (41430)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	16^h 51^m 21.4^s	-19° 01' 49.8"	n/a
CAL-ER (41429)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	11^h 12^m 39.0^s	-01° 26' 35.9"	n/a
CAL-ER (41428)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	02^h 34^m 00.2^s	-31° 54' 07.2"	n/a
CMZ Molecular Cloud	Unidentified	2 hours and 55 minutes	in 4 days	ACIS-I	n/a	None	n/a	17^h 46^m 12.1^s	-28° 53' 19.3"	Sgr
Vela X-1	High Mass X-ray Binary	4 hours and 10 minutes	in 4 days	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	Time Critical, Constrained	09^h 02^m 06.9^s	-40° 33' 16.9"	Vel