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 15 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
MACS J0018.5+1626	Cluster of Galaxies	7 hours and 47 minutes	3 days ago	ACIS-I	n/a	None	n/a	00^h 18^m 33.3^s	+16° 26' 35.9"	Psc
NGC5728	Seyfert 2 Galaxy	7 hours and 58 minutes	3 days ago	ACIS-S	n/a	None	n/a	14^h 42^m 23.9^s	-17° 15' 11.2"	Lib
PSO J308.0416-21.2339	Quasar	2 hours and 55 minutes	3 days ago	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
A1795	Cluster of Galaxies	4 hours and 10 minutes	2 days ago	ACIS-I	n/a	None	Time Critical, Monitoring	13^h 48^m 52.7^s	+26° 35' 27.0"	Boo
NGC 6814	Seyfert 1 Galaxy	2 hours and 45 minutes	2 days ago	ACIS-S	n/a	None	n/a	19^h 42^m 52.5^s	-10° 14' 04.7"	Aql
A1795	Cluster of Galaxies	2 hours and 46 minutes	2 days ago	ACIS-I	n/a	None	Time Critical, Monitoring	13^h 48^m 52.7^s	+26° 35' 27.0"	Boo
LEDA90334	Seyfert 1 Galaxy	2 hours and 35 minutes	2 days ago	ACIS-S	n/a	None	n/a	19^h 37^m 33.0^s	-06° 13' 04.8"	Aql
GRB251129A	Unidentified	2 hours and 46 minutes	1 day ago	ACIS-S	n/a	Slow	n/a	14^h 57^m 18.9^s	+79° 17' 34.7"	UMi
PSO J308.0416-21.2339	Quasar	5 hours and 27 minutes	1 day ago	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
SDSS J122558.56+042826.3	Active Galaxy Nucleus Candidate	6 hours and 23 minutes	21 hours ago	ACIS-S	n/a	None	n/a	12^h 25^m 58.6^s	+04° 28' 26.4"	Vir
CAL-ER (41293)			14 hours ago	n/a	n/a	n/a	n/a	19^h 35^m 58.0^s	-27° 32' 09.6"	n/a
PSO J308.0416-21.2339	Quasar	4 hours and 50 minutes	14 hours ago	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
CAL-ER (41292)		15 minutes	9 hours ago	n/a	n/a	n/a	n/a	17^h 13^m 05.9^s	-31° 57' 36.7"	n/a
ZTF26aavrgaw	Unidentified	7 hours and 13 minutes	8 hours 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	2 hours and 55 minutes	now	ACIS-S	n/a	None	n/a	17^h 48^m 45.0^s	-27° 10' 00.1"	Sgr
CAL-ER (41291)		15 minutes	in 3 hours	n/a	n/a	n/a	n/a	09^h 27^m 12.0^s	-28° 41' 60.0"	n/a
CAL-ER (41290)		15 minutes	in 4 hours	n/a	n/a	n/a	n/a	09^h 12^m 54.2^s	+69° 45' 38.9"	n/a
CAL-ER (41289)		50 minutes	in 5 hours	n/a	n/a	n/a	n/a	17^h 27^m 12.0^s	+36° 30' 00.0"	n/a
CAL-ER (41288)		1 hour and 40 minutes	in 9 hours	n/a	n/a	n/a	n/a	20^h 29^m 36.0^s	-15° 24' 00.0"	n/a
CAL-ER (41287)		1 hour and 31 minutes	in 11 hours	n/a	n/a	n/a	n/a	09^h 12^m 54.2^s	+69° 45' 38.9"	n/a
CAL-ER (41286)		50 minutes	in 13 hours	n/a	n/a	n/a	n/a	20^h 29^m 36.0^s	-15° 24' 00.0"	n/a
ZTF26aavrgaw	Unidentified	6 hours and 40 minutes	in 15 hours	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	in 23 hours	ACIS-I	n/a	None	n/a	19^h 55^m 48.2^s	+02° 15' 21.0"	Aql
1eRASS J120806.9+291707	Unidentified	31 minutes and 40 seconds	in 1 day	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 40 minutes	in 1 day	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 46 minutes	in 1 day	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 23 minutes	in 1 day	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
CAL-ER (41285)		15 minutes	in 2 days	n/a	n/a	n/a	n/a	20^h 56^m 48.0^s	-15° 18' 00.0"	n/a
PSO J308.0416-21.2339	Quasar	2 hours and 55 minutes	in 2 days	ACIS-S	n/a	None	n/a	20^h 32^m 10.0^s	-21° 14' 02.4"	Cap
CAL-ER (41284)		15 minutes	in 2 days	n/a	n/a	n/a	n/a	11^h 35^m 60.0^s	-36° 00' 00.0"	n/a
Perseus cluster S	Unidentified	5 hours and 50 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 (41283)			in 2 days	n/a	n/a	n/a	n/a	01^h 06^m 00.0^s	-02° 42' 00.0"	n/a
SWIFT J2105.1-2106	Unidentified	2 hours and 46 minutes	in 2 days	ACIS-I	n/a	None	n/a	21^h 05^m 03.5^s	-21° 03' 54.1"	Cap
CAL-ER (41282)			in 2 days	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	in 2 days	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per
CAL-ER (41281)		15 minutes	in 3 days	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	in 3 days	ACIS-S	n/a	None	n/a	17^h 48^m 45.0^s	-27° 10' 00.1"	Sgr
CAL-ER (41280)		50 minutes	in 3 days	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	in 3 days	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 days	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 3 days	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 3 days	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 3 days	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 3 days	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 4 days	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 4 days	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 25' 24.8"	Per