XMM-Newton Target of Opportunity (ToO)

ToO Policies & Procedures

Targets of Opportunity (ToOs) are subject to the policies and procedures explained in the XMM-Newton Policies & Procedures Document which is available online (or can be downloaded from here).
Please, pay particular attention to Section 5.2.2 and especially Subsection 5.2.2.2, which makes reference to unanticipated ToO alerts explaining also the policy for the determination of proprietary periods of such observations.

"Discretionary Time” may be granted for programmes where a timely observation (outside of the normal announcement of opportunity cycle) is likely to result in a significant scientific impact.

ToO Alert

Investigators may notify the XMM-Newton SOC of a Target of Opportunity online. Simply complete the details on the ToO Notification Page.

Pending Anticipated ToOs

A list of anticipated ToO observations already accepted by the XMM-Newton Observing Time Allocation Committee (OTAC), which are currently not yet fulfilled, is available at this link.

Unanticipated ToO Details

The following list comprises approved and performed unanticipated ToOs.

The status of the data is denoted using the following acronyms:

ToO (public): Target of Opportunity data are public with respect to data-rights
ToO (DD-MMM-YYYY): Target of Opportunity data are public after the given date, usually after a proprietary period of half a year. Dates can also be linked to data-rights of another accepted open-time target, or be decided by the Project Scientist
ToO (TBD): Target of Opportunity data rights are granted, but the date for the observation to be public is still undefined. Either the ODF has not been delivered yet, or the data rights depend on another observation
DPS: Observed in Discretionary Time of the Project Scientist

The links from entries in this table are as follows:

Rev: link to the Orbit/Date Calculator, to check the observation date
Observation Id: link to the corresponding entry in the Observation Log, if already scheduled. If an observation is not yet listed, the scheduling is still to be confirmed
ODF Data: link to the ODF data for download from the XSA archive, when available (the typical production time for an ODF is approximately 2 weeks). If the data is still proprietary, the linked page will indicate this
PPS Data: link to the PPS data for download from the XSA archive, when available (the typical production time for PPS Data is approximately 6 weeks). If the data is still proprietary, the linked page will indicate this

This table is weekly updated, but there might be periods for which updates take slightly longer. Should you need to know details about a ToO/DPS observation, that are not given below (yet), please do not hesitate to contact the HelpDesk.

Rev Observation
Id Target RA Dec Exp. Time
(ksec) Data Status ODF Data
when available PPS Data
when available Comments

3918 0872392501 FRB 20200120E 09:57:56.00 +68:49:32.0 27.0 ToO (TBD) ODF Data PPS Data (Dr. P. Scholz)

3913 0872392601 FRB 20200120E 09:57:56.00 +68:49:32.0 27.0 ToO (TBD) ODF Data PPS Data (Dr. P. Scholz)

3911 0872392801 TC0072 17:52:00.12 +65:37:36.1 20.5 ToO (TBD) ODF Data PPS Data (Dr. J. Somalwar)

3908 0872392401 FRB 20200120E 09:57:56.00 +68:49:32.0 23.0 ToO (TBD) ODF Data PPS Data (Dr. P. Scholz)

3904 0872392301 ZTF20abfcszi 20:34:52.32 +60:09:14.1 16.0 ToO (07-Oct-2021) ODF Data PPS Data (Dr. I. Liodakis)

3904 0872392101 SDSS J081456.10+5325 11:44:40.20 +67:24:36.0 15.0 ToO (07-Oct-2021) ODF Data PPS Data (Dr. W.Brandt)

3903 0872392201 ZTF20abfcszi 00:31:13.60 +85:00:32.0 11.0 ToO (07-Oct-2021) ODF Data PPS Data (Dr. I. Liodakis)

3891 0872391901 WISEA J041754.02-594942.2 04:17:54.00 -59:49:43.1 55.6 ToO (15-Sep-2021) ODF Data PPS Data (Dr. J. Buchner)

3889 0872392001 SWIFT J1749.4-2807 17:49:32.00 -28:08:06.0 57.8 ToO (09-Sep-2021) ODF Data PPS Data (Dr. A. Sanna)

3885 0872391701 ZTF20abfcszi 00:31:13.60 +85:00:32.0 12.2 ToO (06-Sep-2021) ODF Data PPS Data (Dr. I. Liodakis)

3882 0872391801 SRGEJ170245.3+130104 17:02:45.30 +13:01:02.2 12.0 ToO (25-Ago-2021) ODF Data PPS Data (Dr. M. Gilfanov)

3871 0872391601 EC 04570-5206 04:58:15.63 -52:02 02.0 49.0 ToO (02-Aug-2021) ODF Data PPS Data (Dr. M. Krumpe)

3869 0872391401 Swift 0540-7554 05:40:01.90 -75:54:19.0 35.0 ToO (30-Jul-2021) ODF Data PPS Data (Dr. J. Strader)

3852 0872391301 Mrk 279 13:53:03.44 +69:18:29.4 30.5 ToO (18-Jul-2021) ODF Data PPS Data (Dr. J.Miller)

3851 0872390901 Mrk 817 14:36:22.10 +58:47:39.4 137.7 ToO (23-Jun-2021) ODF Data PPS Data (Dr. E Kara)

3850 0872390801 MR 2251-178 22:54:05.80 -17:34:55.4 55 ToO (23-Jun-2021) ODF Data PPS Data (Dr. J. Mao)

3846 0872391201 SRGA J204318.2+44381 20:43:18.65 +44:38:20.1 25.0 ToO (16-Jun-2021) ODF Data PPS Data (Dr. A. Lutovinov)

3833 0872390701 SGR 1935+2154 19:34:55.68 +21:53:48.2 43.0 ToO (17-May-2021) ODF Data PPS Data (Dr. L.Lin)

3824 0871191401 GRS 1915+105 19:15:11.55 +10:56:44.8 45.0 ToO (01-May-2021) ODF Data PPS Data (Dr. M. Balakrishnan)

3820 0872390601 SGR 1935+2154 19:34:55.68 +21:53:48.2 36.9 ToO (21-Apr-2021) ODF Data PPS Data (Dr. E. Gogus)

3817 0872390501 SGR 1830-0645 18:30:41.72 -06:45:16.4 25.5 ToO (15-Apr-2021) ODF Data PPS Data (Dr. A. Borghese)

3815 0872390301 ASASSN-15oi 20:39:09.10 -30:45:21.0 26.0 ToO (14-Apr-2021) ODF Data PPS Data (Dr. A. Hajela)

3812 0871191301 SGR 1935+2154 19:34:55.68 +21:53:48.2 85.0 ToO (Public) ODF Data PPS Data -

3784 0872390101 2MASX J02344872-4419325 02:34:48.72 -44:19:32.5 95.0 ToO (Public) ODF Data PPS Data -

3777 0871191201 CFHQS J142952+544717 14:29:52.17 +54:47:17.7 23.0 DPS (Public) ODF Data PPS Data -

3767 0854590301 PKS 1413+135 14:15:58.82 +13:20:23.7 15.0 ToO (Public) ODF Data PPS Data -

3764 0861600101 NGC 7793 P13 23:57:50.90 -32:37:26.6 69.2 ToO (22-Jul-2021) ODF Data PPS Data (Dr. F. Fuerst)

3760 0871191001 ASASSN-16le 23:34:35.57 +54:33:25.4 18.0 ToO (Public) ODF Data PPS Data -

3759 0871190901 QSO B0136-2505 01:38:43.30 -24:50:32.0 5.5 Sat. Engineering ODF Data PPS Data (Replenishment)

3759 0871190801 QSO B0136-2505 01:38:43.30 -24:50:32.0 5.0 Sat. Engineering ODF Data PPS Data (Replenishment)

3759 0871190701 QSO B0136-2505 01:38:43.30 -24:50:32.0 130.0 Sat. Engineering ODF Data PPS Data (Replenishment)

3758 0871190601 QSO B0136-2505 01:38:43.30 -24:50:32.0 5.4 Sat. Engineering ODF Data PPS Data (Replenishment)

3758 0871190501 QSO B0136-2505 01:38:43.30 -24:50:32.0 5.0 Sat. Engineering ODF Data PPS Data (Replenishment)

3758 0871190401 QSO B0136-2505 01:38:43.30 -24:50:32.0 130.0 Sat. Engineering ODF Data PPS Data (Replenishment)

3756 0871191101 eRASSU J050213.8-674 05:02:13.85 -67:46:20.8 31.9 ToO (Public) ODF Data PPS Data -

3745 0871190301 ZTF19acspeuw 12:38:56.38 +33:09:57.3 34.2 ToO (Public) ODF Data PPS Data -

3741 0871190201 SGR J1935+2154 19:34:55.68 +21:53:48.2 50.7 ToO (Public) ODF Data PPS Data -

3741 0871190101 kug 1141+371 11:44:29.87 +36:53:08.6 19.5 ToO (Public) ODF Data PPS Data -

3740 0854591401 AT2018fyk 22:50:16.09 -44:51:53.5 17.0 ToO (Public) ODF Data PPS Data -

3730 0854591101 NGC3516 11:06:47.46 +72:34:07.2 24.5 ToO (Public) ODF Data PPS Data -

3711 0854591001 AT 2018bej 06:26:20.80 -69:45:46.3 87.0 ToO (Public) ODF Data PPS Data -

3709 0870590101 Structure 1 13:52:48.20 -62:33:42.9 46.6 ToO (Public) ODF Data PPS Data -

3708 0852980601 Clumpy structure 06:21:42.56 -52:41:47.4 103.8 ToO (Public) ODF Data PPS Data -

3707 0854590901 SWIFT 0407-5700 04:07:31.71 -57:00:25.2 38.1 ToO (Public) ODF Data PPS Data -

3700 0854590801 FRB 180916.J0158+65 01:58:00.75 +65:43:00.3 14.5 ToO (Public) ODF Data PPS Data -

3699 0854590701 FRB 180916.J0158+65 01:58:00.75 +65:43:00.3 15.0 ToO (Public) ODF Data PPS Data -

3693 0853380401 WASP-39 14:29:18.37 -03:26:40.2 11.0 ToO (Public) ODF Data PPS Data -

3692 0854590201 PKS 1413+135 14:15:58.82 +13:20:23.7 13.0 ToO (Public) ODF Data PPS Data -

3683 0851181201 GRB190829A 02:58:10.50 -08:57:29.0 100.0 ToO (Public) ODF Data PPS Data -

3674 0853380501 WASP-76 01:46:31.92 +02:42:01.2 18.0 ToO (Public) ODF Data PPS Data -

3673 0854590101 PKS 1413+135 14:15:58.82 +13:20:23.7 13.0 ToO (Public) ODF Data PPS Data -

3672 0854590401 Mrk 335 00:06:19.52 +20:12:10.4 105.9 ToO (Public) ODF Data PPS Data -

For ToO data prior to revolution 3670, please refer to the ToO Archive Page

Rev	Observation Id	Target	RA	Dec	Exp. Time (ksec)	Data Status	ODF Data when available	PPS Data when available	Comments
3918	0872392501	FRB 20200120E	09:57:56.00	+68:49:32.0	27.0	ToO (TBD)	ODF Data	PPS Data	(Dr. P. Scholz)
3913	0872392601	FRB 20200120E	09:57:56.00	+68:49:32.0	27.0	ToO (TBD)	ODF Data	PPS Data	(Dr. P. Scholz)
3911	0872392801	TC0072	17:52:00.12	+65:37:36.1	20.5	ToO (TBD)	ODF Data	PPS Data	(Dr. J. Somalwar)
3908	0872392401	FRB 20200120E	09:57:56.00	+68:49:32.0	23.0	ToO (TBD)	ODF Data	PPS Data	(Dr. P. Scholz)
3904	0872392301	ZTF20abfcszi	20:34:52.32	+60:09:14.1	16.0	ToO (07-Oct-2021)	ODF Data	PPS Data	(Dr. I. Liodakis)
3904	0872392101	SDSS J081456.10+5325	11:44:40.20	+67:24:36.0	15.0	ToO (07-Oct-2021)	ODF Data	PPS Data	(Dr. W.Brandt)
3903	0872392201	ZTF20abfcszi	00:31:13.60	+85:00:32.0	11.0	ToO (07-Oct-2021)	ODF Data	PPS Data	(Dr. I. Liodakis)
3891	0872391901	WISEA J041754.02-594942.2	04:17:54.00	-59:49:43.1	55.6	ToO (15-Sep-2021)	ODF Data	PPS Data	(Dr. J. Buchner)
3889	0872392001	SWIFT J1749.4-2807	17:49:32.00	-28:08:06.0	57.8	ToO (09-Sep-2021)	ODF Data	PPS Data	(Dr. A. Sanna)
3885	0872391701	ZTF20abfcszi	00:31:13.60	+85:00:32.0	12.2	ToO (06-Sep-2021)	ODF Data	PPS Data	(Dr. I. Liodakis)
3882	0872391801	SRGEJ170245.3+130104	17:02:45.30	+13:01:02.2	12.0	ToO (25-Ago-2021)	ODF Data	PPS Data	(Dr. M. Gilfanov)
3871	0872391601	EC 04570-5206	04:58:15.63	-52:02 02.0	49.0	ToO (02-Aug-2021)	ODF Data	PPS Data	(Dr. M. Krumpe)
3869	0872391401	Swift 0540-7554	05:40:01.90	-75:54:19.0	35.0	ToO (30-Jul-2021)	ODF Data	PPS Data	(Dr. J. Strader)
3852	0872391301	Mrk 279	13:53:03.44	+69:18:29.4	30.5	ToO (18-Jul-2021)	ODF Data	PPS Data	(Dr. J.Miller)
3851	0872390901	Mrk 817	14:36:22.10	+58:47:39.4	137.7	ToO (23-Jun-2021)	ODF Data	PPS Data	(Dr. E Kara)
3850	0872390801	MR 2251-178	22:54:05.80	-17:34:55.4	55	ToO (23-Jun-2021)	ODF Data	PPS Data	(Dr. J. Mao)
3846	0872391201	SRGA J204318.2+44381	20:43:18.65	+44:38:20.1	25.0	ToO (16-Jun-2021)	ODF Data	PPS Data	(Dr. A. Lutovinov)
3833	0872390701	SGR 1935+2154	19:34:55.68	+21:53:48.2	43.0	ToO (17-May-2021)	ODF Data	PPS Data	(Dr. L.Lin)
3824	0871191401	GRS 1915+105	19:15:11.55	+10:56:44.8	45.0	ToO (01-May-2021)	ODF Data	PPS Data	(Dr. M. Balakrishnan)
3820	0872390601	SGR 1935+2154	19:34:55.68	+21:53:48.2	36.9	ToO (21-Apr-2021)	ODF Data	PPS Data	(Dr. E. Gogus)
3817	0872390501	SGR 1830-0645	18:30:41.72	-06:45:16.4	25.5	ToO (15-Apr-2021)	ODF Data	PPS Data	(Dr. A. Borghese)
3815	0872390301	ASASSN-15oi	20:39:09.10	-30:45:21.0	26.0	ToO (14-Apr-2021)	ODF Data	PPS Data	(Dr. A. Hajela)
3812	0871191301	SGR 1935+2154	19:34:55.68	+21:53:48.2	85.0	ToO (Public)	ODF Data	PPS Data	-
3784	0872390101	2MASX J02344872-4419325	02:34:48.72	-44:19:32.5	95.0	ToO (Public)	ODF Data	PPS Data	-
3777	0871191201	CFHQS J142952+544717	14:29:52.17	+54:47:17.7	23.0	DPS (Public)	ODF Data	PPS Data	-
3767	0854590301	PKS 1413+135	14:15:58.82	+13:20:23.7	15.0	ToO (Public)	ODF Data	PPS Data	-
3764	0861600101	NGC 7793 P13	23:57:50.90	-32:37:26.6	69.2	ToO (22-Jul-2021)	ODF Data	PPS Data	(Dr. F. Fuerst)
3760	0871191001	ASASSN-16le	23:34:35.57	+54:33:25.4	18.0	ToO (Public)	ODF Data	PPS Data	-
3759	0871190901	QSO B0136-2505	01:38:43.30	-24:50:32.0	5.5	Sat. Engineering	ODF Data	PPS Data	(Replenishment)
3759	0871190801	QSO B0136-2505	01:38:43.30	-24:50:32.0	5.0	Sat. Engineering	ODF Data	PPS Data	(Replenishment)
3759	0871190701	QSO B0136-2505	01:38:43.30	-24:50:32.0	130.0	Sat. Engineering	ODF Data	PPS Data	(Replenishment)
3758	0871190601	QSO B0136-2505	01:38:43.30	-24:50:32.0	5.4	Sat. Engineering	ODF Data	PPS Data	(Replenishment)
3758	0871190501	QSO B0136-2505	01:38:43.30	-24:50:32.0	5.0	Sat. Engineering	ODF Data	PPS Data	(Replenishment)
3758	0871190401	QSO B0136-2505	01:38:43.30	-24:50:32.0	130.0	Sat. Engineering	ODF Data	PPS Data	(Replenishment)
3756	0871191101	eRASSU J050213.8-674	05:02:13.85	-67:46:20.8	31.9	ToO (Public)	ODF Data	PPS Data	-
3745	0871190301	ZTF19acspeuw	12:38:56.38	+33:09:57.3	34.2	ToO (Public)	ODF Data	PPS Data	-
3741	0871190201	SGR J1935+2154	19:34:55.68	+21:53:48.2	50.7	ToO (Public)	ODF Data	PPS Data	-
3741	0871190101	kug 1141+371	11:44:29.87	+36:53:08.6	19.5	ToO (Public)	ODF Data	PPS Data	-
3740	0854591401	AT2018fyk	22:50:16.09	-44:51:53.5	17.0	ToO (Public)	ODF Data	PPS Data	-
3730	0854591101	NGC3516	11:06:47.46	+72:34:07.2	24.5	ToO (Public)	ODF Data	PPS Data	-
3711	0854591001	AT 2018bej	06:26:20.80	-69:45:46.3	87.0	ToO (Public)	ODF Data	PPS Data	-
3709	0870590101	Structure 1	13:52:48.20	-62:33:42.9	46.6	ToO (Public)	ODF Data	PPS Data	-
3708	0852980601	Clumpy structure	06:21:42.56	-52:41:47.4	103.8	ToO (Public)	ODF Data	PPS Data	-
3707	0854590901	SWIFT 0407-5700	04:07:31.71	-57:00:25.2	38.1	ToO (Public)	ODF Data	PPS Data	-
3700	0854590801	FRB 180916.J0158+65	01:58:00.75	+65:43:00.3	14.5	ToO (Public)	ODF Data	PPS Data	-
3699	0854590701	FRB 180916.J0158+65	01:58:00.75	+65:43:00.3	15.0	ToO (Public)	ODF Data	PPS Data	-
3693	0853380401	WASP-39	14:29:18.37	-03:26:40.2	11.0	ToO (Public)	ODF Data	PPS Data	-
3692	0854590201	PKS 1413+135	14:15:58.82	+13:20:23.7	13.0	ToO (Public)	ODF Data	PPS Data	-
3683	0851181201	GRB190829A	02:58:10.50	-08:57:29.0	100.0	ToO (Public)	ODF Data	PPS Data	-
3674	0853380501	WASP-76	01:46:31.92	+02:42:01.2	18.0	ToO (Public)	ODF Data	PPS Data	-
3673	0854590101	PKS 1413+135	14:15:58.82	+13:20:23.7	13.0	ToO (Public)	ODF Data	PPS Data	-
3672	0854590401	Mrk 335	00:06:19.52	+20:12:10.4	105.9	ToO (Public)	ODF Data	PPS Data	-