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 22 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	3 hours and 18 minutes	4 days ago	ACIS-I	n/a	None	n/a	09^h 59^m 50.8^s	+02° 26' 01.6"	Sex
ArLac	RS CVn Variable	1 hour and 11 minutes	4 days ago	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
ArLac	RS CVn Variable	1 hour and 14 minutes	4 days ago	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
ArLac	RS CVn Variable	1 hour and 14 minutes	4 days ago	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
SDSS J102258.41+123429.7	Quasar	3 hours and 10 minutes	4 days ago	ACIS-S	n/a	None	n/a	10^h 22^m 58.4^s	+12° 34' 29.7"	Leo
Perseus cluster	Cluster of Galaxies	7 hours and 25 minutes	3 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
SDSS J102258.41+123429.7	Quasar	3 hours and 18 minutes	3 days ago	ACIS-S	n/a	None	n/a	10^h 22^m 58.4^s	+12° 34' 29.7"	Leo
Perseus cluster	Cluster of Galaxies	8 hours and 32 minutes	3 days ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41698)		50 minutes	3 days ago	n/a	n/a	n/a	n/a	10^h 07^m 57.8^s	+15° 58' 20.8"	n/a
CAL-ER (41695)		33 minutes and 20 seconds	2 days ago	n/a	n/a	n/a	n/a	21^h 59^m 49.2^s	+25° 36' 53.5"	n/a
NGC4654	HII Galaxy	4 hours and 8 minutes	2 days ago	ACIS-S	n/a	None	n/a	12^h 43^m 56.6^s	+13° 07' 35.4"	Vir
GS 1354-64	High Mass X-ray Binary	8 hours and 11 minutes	2 days ago	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
Center of COSMOS-Web	Unidentified	5 hours and 30 minutes	1 day ago	ACIS-I	n/a	None	n/a	10^h 00^m 29.1^s	+02° 05' 31.3"	Sex
ArLac	RS CVn Variable	1 hour and 10 minutes	1 day ago	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
ArLac	RS CVn Variable	1 hour and 12 minutes	1 day ago	HRC-I	n/a	None	Time Critical, Monitoring	22^h 08^m 40.7^s	+45° 44' 33.3"	Lac
Perseus cluster	Cluster of Galaxies	4 hours and 24 minutes	1 day ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
SDSS J102258.41+123429.7	Quasar	3 hours and 35 minutes	20 hours ago	ACIS-S	n/a	None	n/a	10^h 22^m 58.4^s	+12° 34' 29.7"	Leo
Perseus cluster	Cluster of Galaxies	8 hours and 20 minutes	16 hours ago	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
AT2026dbl	Unidentified	5 hours and 33 minutes	7 hours ago	ACIS-S	NuSTAR	Intermediate	Time Critical, Monitoring	09^h 01^m 17.4^s	+18° 36' 07.8"	Cnc
HD 20385	Double or Multiple Star	1 hour and 23 minutes	now	ACIS-S	n/a	None	n/a	03^h 16^m 40.8^s	-03° 31' 49.7"	Eri
CAL-ER (41692)		20 minutes	in 2 hours	n/a	n/a	n/a	n/a	10^h 06^m 11.8^s	+07° 30' 14.0"	n/a
CAL-ER (41691)		50 minutes	in 3 hours	n/a	n/a	n/a	n/a	10^h 33^m 60.0^s	+02° 21' 36.0"	n/a
CAL-ER (41690)		50 minutes	in 4 hours	n/a	n/a	n/a	n/a	22^h 17^m 40.1^s	-68° 24' 36.0"	n/a
CAL-ER (41689)		50 minutes	in 6 hours	n/a	n/a	n/a	n/a	10^h 33^m 60.0^s	+02° 21' 36.0"	n/a
CAL-ER (41688)		50 minutes	in 8 hours	n/a	n/a	n/a	n/a	14^h 43^m 60.0^s	-56° 00' 00.0"	n/a
CAL-ER (41687)		1 hour and 3 minutes	in 10 hours	n/a	n/a	n/a	n/a	03^h 23^m 60.0^s	+44° 00' 00.0"	n/a
CAL-ER (41686)		50 minutes	in 12 hours	n/a	n/a	n/a	n/a	10^h 06^m 42.5^s	+16° 51' 36.7"	n/a
Perseus cluster	Cluster of Galaxies	6 hours and 56 minutes	in 14 hours	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
SDSS J102258.41+123429.7	Quasar	3 hours and 53 minutes	in 21 hours	ACIS-S	n/a	None	n/a	10^h 22^m 58.4^s	+12° 34' 29.7"	Leo
Perseus cluster	Cluster of Galaxies	6 hours and 56 minutes	in 1 day	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
Center of COSMOS-Web	Unidentified	2 hours and 46 minutes	in 1 day	ACIS-I	n/a	None	n/a	10^h 00^m 29.1^s	+02° 05' 31.3"	Sex
Perseus cluster	Cluster of Galaxies	5 hours and 33 minutes	in 2 days	ACIS-I	n/a	None	Time Critical	03^h 19^m 48.2^s	+41° 30' 42.2"	Per
CAL-ER (41685)			in 2 days	n/a	n/a	n/a	n/a	12^h 19^m 31.4^s	+65° 37' 03.4"	n/a
NGC4654	HII Galaxy	2 hours and 46 minutes	in 2 days	ACIS-S	n/a	None	n/a	12^h 43^m 56.6^s	+13° 07' 35.4"	Vir
g12.82-0.02	SuperNova Remnant	2 hours and 46 minutes	in 2 days	ACIS-I	n/a	None	n/a	18^h 13^m 35.1^s	-17° 49' 57.7"	Sgr
NGC4654	HII Galaxy	2 hours and 46 minutes	in 2 days	ACIS-S	n/a	None	n/a	12^h 43^m 56.6^s	+13° 07' 35.4"	Vir
g12.82-0.02	SuperNova Remnant	2 hours and 46 minutes	in 2 days	ACIS-I	n/a	None	n/a	18^h 13^m 35.1^s	-17° 49' 57.7"	Sgr
G292.0+1.8	SuperNova Remnant	8 hours and 20 minutes	in 2 days	ACIS-I	XMM	None	n/a	11^h 24^m 35.6^s	-59° 15' 56.4"	Cen
CAL-ER (41684)		33 minutes and 20 seconds	in 3 days	n/a	n/a	n/a	n/a	10^h 29^m 13.1^s	+01° 57' 19.1"	n/a