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 2 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
V444 Cyg	Wolf-Rayet	8 hours and 14 minutes	4 days ago	ACIS-S with High Energy Transmission Grating (HETG)	XMM	None	n/a	20^h 19^m 32.4^s	+38° 43' 54.0"	Cyg
SDSS J014837.63+060020.0	Quasar	2 hours and 46 minutes	4 days ago	ACIS-I	n/a	None	n/a	01^h 48^m 37.6^s	+06° 00' 20.0"	Psc
CMZ Molecular Cloud	Unidentified	4 hours and 5 minutes	3 days ago	ACIS-I	n/a	None	n/a	17^h 46^m 12.1^s	-28° 53' 19.3"	Sgr
SDSS J014837.63+060020.0	Quasar	2 hours and 43 minutes	3 days ago	ACIS-I	n/a	None	n/a	01^h 48^m 37.6^s	+06° 00' 20.0"	Psc
CMZ Molecular Cloud	Unidentified	4 hours and 5 minutes	3 days ago	ACIS-I	n/a	None	n/a	17^h 46^m 12.1^s	-28° 53' 19.3"	Sgr
SDSS J014837.63+060020.0	Quasar	2 hours and 43 minutes	3 days ago	ACIS-I	n/a	None	n/a	01^h 48^m 37.6^s	+06° 00' 20.0"	Psc
CMZ Molecular Cloud	Unidentified	3 hours and 15 minutes	3 days ago	ACIS-I	n/a	None	n/a	17^h 46^m 12.1^s	-28° 53' 19.3"	Sgr
SDSS J014837.63+060020.0	Quasar	2 hours and 43 minutes	3 days ago	ACIS-I	n/a	None	n/a	01^h 48^m 37.6^s	+06° 00' 20.0"	Psc
WR21a	Wolf-Rayet	5 hours	2 days ago	ACIS-S with High Energy Transmission Grating (HETG)	n/a	None	n/a	10^h 25^m 56.5^s	-57° 48' 43.5"	Car
SDSS J014837.63+060020.0	Quasar	5 hours and 36 minutes	2 days ago	ACIS-I	n/a	None	n/a	01^h 48^m 37.6^s	+06° 00' 20.0"	Psc
CAL-ER (41039)		50 minutes	2 days ago	n/a	n/a	n/a	n/a	03^h 10^m 21.2^s	-40° 30' 31.0"	n/a
SN2026sqf	Unidentified	2 hours and 46 minutes	1 day ago	ACIS-S	n/a	Immediate	Time Critical, Monitoring	10^h 38^m 48.0^s	+53° 30' 34.1"	UMa
BOSS0210E	Unidentified	5 hours and 14 minutes	1 day ago	ACIS-I	n/a	None	n/a	02^h 08^m 48.0^s	+01° 00' 00.0"	Cet
[ZCA2021] BOSS1244 NE	Unidentified	3 hours and 48 minutes	23 hours ago	ACIS-I	n/a	None	n/a	12^h 44^m 19.2^s	+36° 04' 48.0"	CVn
BOSS0210E	Unidentified	4 hours and 5 minutes	17 hours ago	ACIS-I	n/a	None	n/a	02^h 08^m 48.0^s	+01° 00' 00.0"	Cet
[ZCA2021] BOSS1244 NE	Unidentified	4 hours and 10 minutes	11 hours ago	ACIS-I	n/a	None	n/a	12^h 44^m 19.2^s	+36° 04' 48.0"	CVn
CAL-ER (41029)		15 minutes	6 hours ago	n/a	n/a	n/a	n/a	02^h 02^m 48.0^s	+18° 00' 00.0"	n/a
BOSS0210E	Unidentified	4 hours and 10 minutes	5 hours ago	ACIS-I	n/a	None	n/a	02^h 08^m 48.0^s	+01° 00' 00.0"	Cet
CAL-ER (41028)			54 minutes ago	n/a	n/a	n/a	n/a	05^h 04^m 54.8^s	-11° 58' 01.9"	n/a
1eRASS J101111.1+083331	Unidentified	4 hours and 10 minutes	now	ACIS-S	n/a	None	n/a	10^h 11^m 10.9^s	+08° 33' 27.8"	Leo
Gaia DR2 76117304500935936	High Proper Motion Star	2 hours and 46 minutes	in 5 hours	ACIS-S	n/a	None	n/a	02^h 26^m 33.6^s	+15° 22' 24.5"	Ari
SDSS J100207.03+163048.6	Unidentified	4 hours and 43 minutes	in 8 hours	ACIS-S	HST	None	n/a	10^h 02^m 07.0^s	+16° 30' 48.7"	Leo
QSOB0229+200	BL Lac	2 hours and 46 minutes	in 13 hours	ACIS-S	n/a	None	n/a	02^h 32^m 48.6^s	+20° 17' 17.3"	Ari
CAL-ER (41027)		50 minutes	in 17 hours	n/a	n/a	n/a	n/a	02^h 39^m 40.0^s	+12° 46' 44.0"	n/a
CAL-ER (41026)		50 minutes	in 20 hours	n/a	n/a	n/a	n/a	10^h 39^m 19.2^s	-11° 49' 12.0"	n/a
CAL-ER (41025)		50 minutes	in 1 day	n/a	n/a	n/a	n/a	05^h 28^m 48.0^s	-39° 53' 60.0"	n/a
CAL-ER (41024)		50 minutes	in 1 day	n/a	n/a	n/a	n/a	01^h 04^m 48.0^s	-55° 30' 00.0"	n/a
CAL-ER (41023)		16 minutes and 40 seconds	in 1 day	n/a	n/a	n/a	n/a	02^h 09^m 12.0^s	+08° 05' 60.0"	n/a
CAL-ER (41022)		16 minutes and 40 seconds	in 1 day	n/a	n/a	n/a	n/a	01^h 04^m 35.1^s	+08° 47' 11.4"	n/a
Kes 73	SuperNova Remnant	4 hours and 10 minutes	in 1 day	ACIS-S	JWST	None	n/a	18^h 41^m 20.0^s	-04° 56' 11.0"	Sct
2MASX J01190583+1604550	Galaxy	2 hours and 46 minutes	in 1 day	ACIS-S	n/a	None	n/a	01^h 19^m 05.8^s	+16° 04' 55.0"	Psc
Kes 73	SuperNova Remnant	4 hours and 10 minutes	in 2 days	ACIS-S	JWST	None	n/a	18^h 41^m 20.0^s	-04° 56' 11.0"	Sct
SDSS J014837.63+060020.0	Quasar	2 hours and 55 minutes	in 2 days	ACIS-I	n/a	None	n/a	01^h 48^m 37.6^s	+06° 00' 20.0"	Psc
4U 1626-67	Low Mass X-ray Binary	4 hours and 10 minutes	in 2 days	HRC-I with High Energy Transmission Grating (HETG)	n/a	None	n/a	16^h 32^m 16.8^s	-67° 27' 39.3"	TrA
BOSS0210W	Unidentified	3 hours and 20 minutes	in 2 days	ACIS-I	n/a	None	n/a	02^h 10^m 60.0^s	+00° 46' 48.0"	Cet
CAL-ER (41021)			in 2 days	n/a	n/a	n/a	n/a	07^h 02^m 24.0^s	+01° 18' 00.0"	n/a
PLCK G165.7+67.0	Unidentified	3 hours and 36 minutes	in 2 days	ACIS-I	XMM	None	n/a	11^h 27^m 15.0^s	+42° 28' 17.5"	UMa
CAL-ER (41020)			in 3 days	n/a	n/a	n/a	n/a	07^h 02^m 24.0^s	+01° 18' 00.0"	n/a
BOSS0210W	Unidentified	2 hours and 46 minutes	in 3 days	ACIS-I	n/a	None	n/a	02^h 10^m 60.0^s	+00° 46' 48.0"	Cet
CAL-ER (41019)			in 3 days	n/a	n/a	n/a	n/a	07^h 02^m 24.0^s	+01° 18' 00.0"	n/a
PLCK G165.7+67.0	Unidentified	3 hours and 20 minutes	in 3 days	ACIS-I	XMM	None	n/a	11^h 27^m 15.0^s	+42° 28' 17.5"	UMa
UGC 03273	Active Galaxy Nucleus Candidate	2 hours and 46 minutes	in 3 days	ACIS-I	n/a	None	n/a	05^h 17^m 44.4^s	+53° 33' 04.6"	Aur
NGC 300 X-1	High Mass X-ray Binary	8 hours and 20 minutes	in 3 days	ACIS-S	JWST	None	Time Critical, Constrained	00^h 55^m 10.0^s	-37° 42' 12.2"	Scl