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
ZTF26aavrgaw	Unidentified	6 hours and 52 minutes	3 days ago	ACIS-S	n/a	Slow	Time Critical, Monitoring	14^h 43^m 37.1^s	+58° 53' 08.1"	Dra
SNR G1.9+0.3	SuperNova Remnant	3 hours and 9 minutes	3 days ago	ACIS-S	n/a	None	n/a	17^h 48^m 45.0^s	-27° 10' 00.1"	Sgr
CAL-ER (41291)		15 minutes and 40 seconds	3 days ago	n/a	n/a	n/a	n/a	09^h 27^m 07.3^s	-28° 43' 25.6"	n/a
ZTF26aavrgaw	Unidentified	6 hours and 35 minutes	2 days ago	ACIS-S	n/a	Slow	Time Critical, Monitoring	14^h 43^m 37.1^s	+58° 53' 08.1"	Dra
CIZAJ1955.8+0215	Unidentified	2 hours and 46 minutes	2 days ago	ACIS-I	n/a	None	n/a	19^h 55^m 48.2^s	+02° 15' 21.0"	Aql
1eRASS J120806.9+291707	Unidentified	32 minutes and 50 seconds	2 days ago	ACIS-S	n/a	None	n/a	12^h 08^m 07.0^s	+29° 17' 07.8"	Com
PSZ2G144.99-24.64	Cluster of Galaxies	2 hours and 39 minutes	2 days ago	ACIS-I	n/a	None	n/a	02^h 28^m 45.4^s	+34° 01' 37.2"	Tri
Gaia DR2 6885342959337741184	High Proper Motion Star	2 hours and 49 minutes	2 days ago	ACIS-S	n/a	None	n/a	21^h 07^m 10.4^s	-13° 55' 22.5"	Aqr
Perseus cluster S	Unidentified	6 hours and 11 minutes	1 day ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
PSO J308.0416-21.2339	Quasar	2 hours and 45 minutes	1 day ago	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
Perseus cluster S	Unidentified	5 hours and 38 minutes	23 hours ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
SWIFT J2105.1-2106	Unidentified	2 hours and 46 minutes	16 hours ago	ACIS-I	n/a	None	n/a	21^h 05^m 03.5^s	-21° 03' 54.1"	Cap
CAL-ER (41282)			13 hours ago	n/a	n/a	n/a	n/a	21^h 29^m 12.0^s	-11° 35' 60.0"	n/a
Perseus cluster S	Unidentified	5 hours and 33 minutes	12 hours ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
CAL-ER (41281)		15 minutes	7 hours ago	n/a	n/a	n/a	n/a	22^h 21^m 11.0^s	+05° 55' 46.2"	n/a
SNR G1.9+0.3	SuperNova Remnant	2 hours and 38 minutes	5 hours ago	ACIS-S	n/a	None	n/a	17^h 48^m 45.0^s	-27° 10' 00.1"	Sgr
CAL-ER (41280)		50 minutes	2 hours ago	n/a	n/a	n/a	n/a	20^h 29^m 36.0^s	-15° 24' 00.0"	n/a
CAL-ER (41279)		50 minutes	now	n/a	n/a	n/a	n/a	16^h 52^m 49.0^s	+35° 30' 41.4"	n/a
CAL-ER (41278)		1 hour and 28 minutes	in 3 hours	n/a	n/a	n/a	n/a	13^h 44^m 48.0^s	-26° 00' 00.0"	n/a
CAL-ER (41277)		15 minutes	in 5 hours	n/a	n/a	n/a	n/a	09^h 12^m 54.2^s	+69° 45' 38.9"	n/a
CAL-ER (41276)		15 minutes	in 6 hours	n/a	n/a	n/a	n/a	05^h 29^m 46.1^s	+38° 50' 59.6"	n/a
CAL-ER (41275)		15 minutes	in 7 hours	n/a	n/a	n/a	n/a	20^h 56^m 48.0^s	-15° 18' 00.0"	n/a
Perseus cluster S	Unidentified	6 hours and 56 minutes	in 10 hours	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
CAL-ER (41274)		15 minutes	in 17 hours	n/a	n/a	n/a	n/a	20^h 56^m 48.0^s	-15° 18' 00.0"	n/a
Perseus cluster S	Unidentified	2 hours and 46 minutes	in 18 hours	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
ClG J0242-2132	Cluster of Galaxies	8 hours and 20 minutes	in 21 hours	ACIS-S	n/a	None	n/a	02^h 42^m 35.9^s	-21° 32' 26.2"	Cet
GL 783	Double or Multiple Star	3 hours and 3 minutes	in 1 day	ACIS-S	n/a	None	Time Critical, Monitoring	20^h 11^m 12.1^s	-36° 06' 06.3"	Sgr
NGC3137	Seyfert 2 Galaxy	3 hours and 20 minutes	in 1 day	ACIS-S	n/a	None	n/a	10^h 09^m 07.4^s	-29° 03' 51.1"	Ant
GL 783	Double or Multiple Star	5 hours and 50 minutes	in 2 days	ACIS-S	n/a	None	Time Critical, Monitoring	20^h 11^m 12.1^s	-36° 06' 06.3"	Sgr
Gaia DR3 5414242958825679488	White Dwarf Candidate	5 hours and 33 minutes	in 2 days	ACIS-S	n/a	None	n/a	10^h 13^m 42.5^s	-45° 16' 56.7"	Vel
GL 783	Double or Multiple Star	4 hours and 10 minutes	in 2 days	ACIS-S	n/a	None	Time Critical, Monitoring	20^h 11^m 12.1^s	-36° 06' 06.3"	Sgr
CAL-ER (41273)		15 minutes	in 2 days	n/a	n/a	n/a	n/a	11^h 39^m 60.0^s	-33° 53' 60.0"	n/a
Perseus cluster S	Unidentified	3 hours and 53 minutes	in 2 days	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
CAL-ER (41272)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	21^h 31^m 27.1^s	-12° 08' 31.2"	n/a
CAL-ER (41271)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	01^h 19^m 50.2^s	+26° 00' 32.8"	n/a
CAL-ER (41270)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	05^h 24^m 43.2^s	-37° 31' 48.0"	n/a
CAL-ER (41269)		33 minutes and 20 seconds	in 3 days	n/a	n/a	n/a	n/a	15^h 09^m 23.2^s	+39° 13' 19.6"	n/a
CAL-ER (41268)		50 minutes	in 3 days	n/a	n/a	n/a	n/a	20^h 06^m 42.2^s	-05° 02' 03.5"	n/a
CAL-ER (41267)		33 minutes and 20 seconds	in 3 days	n/a	n/a	n/a	n/a	14^h 48^m 00.0^s	+24° 36' 00.0"	n/a
CAL-ER (41266)		33 minutes and 20 seconds	in 3 days	n/a	n/a	n/a	n/a	13^h 49^m 08.2^s	-30° 13' 54.5"	n/a
PSO J308.0416-21.2339	Quasar	4 hours and 10 minutes	in 3 days	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
CAL-ER (41265)			in 3 days	n/a	n/a	n/a	n/a	17^h 02^m 42.2^s	-03° 05' 11.8"	n/a
CAL-ER (41264)		15 minutes	in 3 days	n/a	n/a	n/a	n/a	14^h 36^m 48.0^s	+28° 04' 03.4"	n/a
SDSS J143345.14+264915.1	Emission-line galaxy	5 hours and 33 minutes	in 3 days	ACIS-S	n/a	None	n/a	14^h 33^m 45.1^s	+26° 49' 15.2"	Boo
CAL-ER (41263)			in 4 days	n/a	n/a	n/a	n/a	17^h 02^m 42.2^s	-03° 05' 11.8"	n/a
PSO J308.0416-21.2339	Quasar	4 hours and 10 minutes	in 4 days	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
CAL-ER (41262)			in 4 days	n/a	n/a	n/a	n/a	17^h 02^m 42.2^s	-03° 05' 11.8"	n/a
CAL-ER (41261)		15 minutes	in 4 days	n/a	n/a	n/a	n/a	14^h 36^m 48.0^s	+28° 04' 03.4"	n/a
SDSS J143345.14+264915.1	Emission-line galaxy	5 hours and 33 minutes	in 4 days	ACIS-S	n/a	None	n/a	14^h 33^m 45.1^s	+26° 49' 15.2"	Boo