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

TBD. TBD OJ 287 08:54:48.88 +20:06:30.6 100.0 ToO (TBD) ODF Data PPS Data (Dr. S. Komossa)

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

3812 0871191301 SGR 1935+2154 19:34:55.68 +21:53:48.2 85.0 ToO (TBD) ODF Data PPS Data (Dr. A. Borghese)

3784 0872390101 2MASX J02344872-4419325 02:34:48.72 -44:19:32.5 95.0 ToO (11-Feb-2021) ODF Data PPS Data (Dr. R. Arcodia)

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 (09-Jan-2021) ODF Data PPS Data (Dr. I. Liodakis)

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 (25-Dec-2020) ODF Data PPS Data (Dr. O. Sokoliuk)

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 (19-Dec-2020) ODF Data PPS Data (Dr. F. Haberl)

3745 0871190301 ZTF19acspeuw 12:38:56.38 +33:09:57.3 34.2 ToO (26-Nov-2020) ODF Data PPS Data (Dr. S. Gezari)

3741 0871190201 SGR J1935+2154 19:34:55.68 +21:53:48.2 50.7 ToO (18-Nov-2020) ODF Data PPS Data (Dr. E. Gogus)

3741 0871190101 kug 1141+371 11:44:29.87 +36:53:08.6 19.5 ToO (18-Nov-2020) ODF Data PPS Data (Dr. J. Jiang)

3740 0854591401 AT2018fyk 22:50:16.09 -44:51:53.5 17.0 ToO (18-Nov-2020) ODF Data PPS Data (Dr. D. Pasham)

3732 0854591201 OJ 287 08:54:48.90 +20:06:31.0 15.0 ToO (30-Oct-2020) ODF Data PPS Data (Dr. S. Komossa)

3730 0854591101 NGC3516 11:06:47.46 +72:34:07.2 24.5 ToO (27-Oct-2020) ODF Data PPS Data (Dr. M. Guainazzi)

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 (09-Jan-2021) ODF Data PPS Data (Dr. I. Liodakis)

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 (09-Jan-2021) ODF Data PPS Data (Dr. I. Liodakis)

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

3669 0854590501 RX J0209.6-7427 02:09:33.85 -74:27:12.5 18.6 ToO (Public) ODF Data PPS Data -

3667 0854400101 C/2019 Q4 11:42:43.69 -25:06:48.3 81.8 ToO (Public) ODF Data PPS Data -

3659 0853981301 MAXI J0637-430 06:36:23.70 -42:52:04.0 22.3 ToO (Public) ODF Data PPS Data -

3659 0853380801 HAT-P-1 22:57:46.89 +38:40:28.5 19.9 ToO (Public) ODF Data PPS Data -

3656 0853380901 HAT-P-12 13:57:33.28 +43:29:35.7 10.0 ToO (Public) ODF Data PPS Data -

3656 0852980401 PG 1634+706 16:34:28.99 +70:31:32.4 30.9 ToO (Public) ODF Data PPS Data -

3655 0853380601 WASP-127 10:42:14.08 -03:50:06.3 8.0 ToO (Public) ODF Data PPS Data -

3655 0852980301 PG 1634+706 16:34:28.99 +70:31:32.4 30.8 ToO (Public) ODF Data PPS Data -

3654 0853981101 SDSS J203047.34+0413 20:30:47.56 +04:13:30.6 35.9 ToO (Public) ODF Data PPS Data -

3654 0853981001 NGC7793-P13 23:57:51.01 -32:37:26.6 53.5 ToO (Public) ODF Data PPS Data -

3654 0853980901 SXP 1062 01:27:45.90 -73:32:56.6 36.0 ToO (Public) ODF Data PPS Data -

3652 0853980801 MAXI J0637-430 06:36:23.70 -40:52:04.0 23.2 ToO (Public) ODF Data PPS Data -

3644 0851181501 PSR J0740+6620 07:40:45.79 +66:20:33.5 13.0 ToO (Public) ODF Data PPS Data -

3643 0853980701 PKS 2004-447 20:07:55.18 -44:34:44.3 13.0 ToO (Public) ODF Data PPS Data -

3642 0853980601 KS 1947+300 19:49:35.48 +30:12:31.8 14.4 ToO (Public) ODF Data PPS Data -

3642 0853381101 HD 201585 21:10:12.36 +10:44:20.2 8.0 ToO (Public) ODF Data PPS Data -

3642 0851181401 PSR J0740+6620 07:40:45.79 +66:20:33.5 10.2 ToO (Public) ODF Data PPS Data -

3641 0853980201 AT2018fyk 22:50:16.09 -44:51:53.5 54.1 ToO (Public) ODF Data PPS Data -

3641 0851181601 PSR J0740+6620 07:40:45.79 +66:20:33.5 15.0 ToO (Public) ODF Data PPS Data -

3640 0852980501 PG 1634+706 16:34:29.00 +70:31:32.4 30.0 DPS (Public) ODF Data PPS Data -

3639 0853980101 V378 Vul 19:28:15.60 +19:33:21.4 22.0 ToO (Public) ODF Data PPS Data -

3637 0853380301 WASP-13 09:20:24.71 +33:52:55.9 12.0 ToO (Public) ODF Data PPS Data -

3636 0852980201 RX J0720.4-3125 07:20:24.96 -31:25:50.2 95.8 DPS (Public) ODF Data PPS Data -

3635 0853000201 PSR B0656+14 06:59:48.13 +14:14:21.5 30.4 DPS (Public) ODF Data PPS Data -

3634 0851181701 GRS 1915+105 19:15:11.55 +10:56:44.8 45.0 ToO (Public) ODF Data PPS Data -

3633 0853000101 1H0707-495 07:08:40.80 -49:32:00.0 60.7 ToO (Public) ODF Data PPS Data -

3629 0853980301 XTE J1739-285 17:39:54.00 -28:29:47.0 44.1 ToO (Public) ODF Data PPS Data -

3623 0851181301 MAXI J1820+070 18:20:21.88 +07:11:08.3 60.8 ToO (Public) ODF Data PPS Data -

3620 0853380701 KELT-8 18:53:13.32 +24:07:38.6 10.5 ToO (Public) ODF Data PPS Data -

3620 0853380101 WASP-12 06:30:32.80 +29:40:20.3 11.5 ToO (Public) ODF Data PPS Data -

3620 0851181101 EXO 1846-031 18:49:17.00 -03:03:55.0 36.4 ToO (Public) ODF Data PPS Data -

3616 0852980101 SN 1987A 05:35:28.02 -69:16:11.0 15.0 ToO (31-Dec-2020) ODF Data PPS Data (Dr. M. Freyberg)

3613 0851180901 Sgr A* 17:45:40.00 -29:00:28.0 70.0 ToO (Public) ODF Data PPS Data -

3612 0853381201 KELT-7 05:13:10.90 +33:19:05.4 9.6 ToO (Public) ODF Data PPS Data -

3612 0853381001 HAT-P-32 02:04:10.30 +46:41:16.2 21.2 ToO (Public) ODF Data PPS Data -

3603 0851180801 NGC 5907 ULX-1 15:15:58.64 +56:18:10.0 65.0 ToO (Public) ODF Data PPS Data -

3602 0851180701 NGC 5907 ULX-1 15:15:58.64 +56:18:10.0 59.9 ToO (Public) ODF Data PPS Data -

For ToO data prior to revolution 3600, 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
TBD.	TBD	OJ 287	08:54:48.88	+20:06:30.6	100.0	ToO (TBD)	ODF Data	PPS Data	(Dr. S. Komossa)
3815	0872390301	ASASSN-15oi	20:39:09.10	-30:45:21.0	26.0	ToO (TBD)	ODF Data	PPS Data	(Dr. A. Hajela)
3812	0871191301	SGR 1935+2154	19:34:55.68	+21:53:48.2	85.0	ToO (TBD)	ODF Data	PPS Data	(Dr. A. Borghese)
3784	0872390101	2MASX J02344872-4419325	02:34:48.72	-44:19:32.5	95.0	ToO (11-Feb-2021)	ODF Data	PPS Data	(Dr. R. Arcodia)
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 (09-Jan-2021)	ODF Data	PPS Data	(Dr. I. Liodakis)
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 (25-Dec-2020)	ODF Data	PPS Data	(Dr. O. Sokoliuk)
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 (19-Dec-2020)	ODF Data	PPS Data	(Dr. F. Haberl)
3745	0871190301	ZTF19acspeuw	12:38:56.38	+33:09:57.3	34.2	ToO (26-Nov-2020)	ODF Data	PPS Data	(Dr. S. Gezari)
3741	0871190201	SGR J1935+2154	19:34:55.68	+21:53:48.2	50.7	ToO (18-Nov-2020)	ODF Data	PPS Data	(Dr. E. Gogus)
3741	0871190101	kug 1141+371	11:44:29.87	+36:53:08.6	19.5	ToO (18-Nov-2020)	ODF Data	PPS Data	(Dr. J. Jiang)
3740	0854591401	AT2018fyk	22:50:16.09	-44:51:53.5	17.0	ToO (18-Nov-2020)	ODF Data	PPS Data	(Dr. D. Pasham)
3732	0854591201	OJ 287	08:54:48.90	+20:06:31.0	15.0	ToO (30-Oct-2020)	ODF Data	PPS Data	(Dr. S. Komossa)
3730	0854591101	NGC3516	11:06:47.46	+72:34:07.2	24.5	ToO (27-Oct-2020)	ODF Data	PPS Data	(Dr. M. Guainazzi)
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 (09-Jan-2021)	ODF Data	PPS Data	(Dr. I. Liodakis)
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 (09-Jan-2021)	ODF Data	PPS Data	(Dr. I. Liodakis)
3672	0854590401	Mrk 335	00:06:19.52	+20:12:10.4	105.9	ToO (Public)	ODF Data	PPS Data	-
3669	0854590501	RX J0209.6-7427	02:09:33.85	-74:27:12.5	18.6	ToO (Public)	ODF Data	PPS Data	-
3667	0854400101	C/2019 Q4	11:42:43.69	-25:06:48.3	81.8	ToO (Public)	ODF Data	PPS Data	-
3659	0853981301	MAXI J0637-430	06:36:23.70	-42:52:04.0	22.3	ToO (Public)	ODF Data	PPS Data	-
3659	0853380801	HAT-P-1	22:57:46.89	+38:40:28.5	19.9	ToO (Public)	ODF Data	PPS Data	-
3656	0853380901	HAT-P-12	13:57:33.28	+43:29:35.7	10.0	ToO (Public)	ODF Data	PPS Data	-
3656	0852980401	PG 1634+706	16:34:28.99	+70:31:32.4	30.9	ToO (Public)	ODF Data	PPS Data	-
3655	0853380601	WASP-127	10:42:14.08	-03:50:06.3	8.0	ToO (Public)	ODF Data	PPS Data	-
3655	0852980301	PG 1634+706	16:34:28.99	+70:31:32.4	30.8	ToO (Public)	ODF Data	PPS Data	-
3654	0853981101	SDSS J203047.34+0413	20:30:47.56	+04:13:30.6	35.9	ToO (Public)	ODF Data	PPS Data	-
3654	0853981001	NGC7793-P13	23:57:51.01	-32:37:26.6	53.5	ToO (Public)	ODF Data	PPS Data	-
3654	0853980901	SXP 1062	01:27:45.90	-73:32:56.6	36.0	ToO (Public)	ODF Data	PPS Data	-
3652	0853980801	MAXI J0637-430	06:36:23.70	-40:52:04.0	23.2	ToO (Public)	ODF Data	PPS Data	-
3644	0851181501	PSR J0740+6620	07:40:45.79	+66:20:33.5	13.0	ToO (Public)	ODF Data	PPS Data	-
3643	0853980701	PKS 2004-447	20:07:55.18	-44:34:44.3	13.0	ToO (Public)	ODF Data	PPS Data	-
3642	0853980601	KS 1947+300	19:49:35.48	+30:12:31.8	14.4	ToO (Public)	ODF Data	PPS Data	-
3642	0853381101	HD 201585	21:10:12.36	+10:44:20.2	8.0	ToO (Public)	ODF Data	PPS Data	-
3642	0851181401	PSR J0740+6620	07:40:45.79	+66:20:33.5	10.2	ToO (Public)	ODF Data	PPS Data	-
3641	0853980201	AT2018fyk	22:50:16.09	-44:51:53.5	54.1	ToO (Public)	ODF Data	PPS Data	-
3641	0851181601	PSR J0740+6620	07:40:45.79	+66:20:33.5	15.0	ToO (Public)	ODF Data	PPS Data	-
3640	0852980501	PG 1634+706	16:34:29.00	+70:31:32.4	30.0	DPS (Public)	ODF Data	PPS Data	-
3639	0853980101	V378 Vul	19:28:15.60	+19:33:21.4	22.0	ToO (Public)	ODF Data	PPS Data	-
3637	0853380301	WASP-13	09:20:24.71	+33:52:55.9	12.0	ToO (Public)	ODF Data	PPS Data	-
3636	0852980201	RX J0720.4-3125	07:20:24.96	-31:25:50.2	95.8	DPS (Public)	ODF Data	PPS Data	-
3635	0853000201	PSR B0656+14	06:59:48.13	+14:14:21.5	30.4	DPS (Public)	ODF Data	PPS Data	-
3634	0851181701	GRS 1915+105	19:15:11.55	+10:56:44.8	45.0	ToO (Public)	ODF Data	PPS Data	-
3633	0853000101	1H0707-495	07:08:40.80	-49:32:00.0	60.7	ToO (Public)	ODF Data	PPS Data	-
3629	0853980301	XTE J1739-285	17:39:54.00	-28:29:47.0	44.1	ToO (Public)	ODF Data	PPS Data	-
3623	0851181301	MAXI J1820+070	18:20:21.88	+07:11:08.3	60.8	ToO (Public)	ODF Data	PPS Data	-
3620	0853380701	KELT-8	18:53:13.32	+24:07:38.6	10.5	ToO (Public)	ODF Data	PPS Data	-
3620	0853380101	WASP-12	06:30:32.80	+29:40:20.3	11.5	ToO (Public)	ODF Data	PPS Data	-
3620	0851181101	EXO 1846-031	18:49:17.00	-03:03:55.0	36.4	ToO (Public)	ODF Data	PPS Data	-
3616	0852980101	SN 1987A	05:35:28.02	-69:16:11.0	15.0	ToO (31-Dec-2020)	ODF Data	PPS Data	(Dr. M. Freyberg)
3613	0851180901	Sgr A*	17:45:40.00	-29:00:28.0	70.0	ToO (Public)	ODF Data	PPS Data	-
3612	0853381201	KELT-7	05:13:10.90	+33:19:05.4	9.6	ToO (Public)	ODF Data	PPS Data	-
3612	0853381001	HAT-P-32	02:04:10.30	+46:41:16.2	21.2	ToO (Public)	ODF Data	PPS Data	-
3603	0851180801	NGC 5907 ULX-1	15:15:58.64	+56:18:10.0	65.0	ToO (Public)	ODF Data	PPS Data	-
3602	0851180701	NGC 5907 ULX-1	15:15:58.64	+56:18:10.0	59.9	ToO (Public)	ODF Data	PPS Data	-