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 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 Proposer/
Comments

4140 0911791701 J114447.77-430859.3 11:44:47.77 -43:08:59.3 15.2 ToO (Public) ODF Data PPS Data (Dr. E. Kammoun)

4138 0910190701 SDSSJ1430+2303 14:30:16.00 +23:03:44.0 110.7 ToO (TBD) ODF Data PPS Data (Dr. N. Jiang)

4137 0911790301 em01_044099_020_ML00016_002_c946 02:55:08.24 -08:18:46.1 18.0 DPS (TBD) ODF Data PPS Data (Dr. T. Boller)

4131 0910190101 SDSSJ1430+2303 14:30:16.00 +23:03:44.0 104.0 ToO (TBD) ODF Data PPS Data (Dr. N. Jiang)

4129 0911790201 em01_209084_020_ML00124_002_c946 13:51:21.60 +04:45:41.0 23.0 DPS (30-Dec-2022) ODF Data PPS Data (Dr. T. Boller)

4127 0911791601 NGC 4156 12:10:49.60 +39:28:22.0 36.1 ToO (27-Dec-2022) ODF Data PPS Data (Dr. E. Lusso)

4121 0911791401 AT2018fyk 22:50:16.10 -44:51:53.5 10.6 ToO (14-Dec-2022) ODF Data PPS Data (Dr. T. Wevers)

4120 0911791101 IRAS F01004-2237 01:02:50.00 -22:21:57.2 37.0 ToO (14-Dec-2022) ODF Data PPS Data (Dr. L. Sun)

4113 0911790801 2mass j09204562+2339 09:20:45.62 +23 39 00.9 57.0 ToO (30-Nov-2022) ODF Data PPS Data (Dr. S. Laha)

4112 0911790901 S4 0954+65 09:58:47.30 +65:33:54.8 19.9 DPS (Public) ODF Data PPS Data (Dr. N. Schartel)

4111 0911790601 AT2018fyk 22:50:16.10 -44:51:53.5 29.0 ToO (27-Dec-2022) ODF Data PPS Data (Dr. T. Wevers)

4110 0911990501 J003836.88-433709.8 00:38:36.90 -43:37:09.8 127.6 Sat. Engineering (public) ODF Data PPS Data (Replenishment)

4109 0911990101 J003836.88-433709.8 00:38:36.90 -43:37:09.8 127.6 Sat. Engineering (public) ODF Data PPS Data (Replenishment)

4105 0911990401 WR 140 20:20:28.00 +43:51:16.3 15.0 ToO (17-Nov-2022) ODF Data PPS Data (Dr. P. Pradhan)

4098 0911790101 em01_140084_020_ML00023_001_c946 09:15:36.77 +06:25:40.6 23.0 DPS (05-Nov-2022) ODF Data PPS Data (Dr. T. Boller)

4096 0911990201 Mrk 817 14:36:22.10 +58:47:39.4 128.8 ToO (04-Nov-2022) ODF Data PPS Data (Dr. J. Miller)

4090 0893811001 ASASSN-20qc 04:13:02.38 -53:04:21.8 45.0 ToO (18-Oct-2022) ODF Data PPS Data (Dr. D. Pasham)

4089 0911790401 em01_135051_020_ML00007_003_c946 09:04:23.31 +40:07:04.7 18.0 DPS (11-Oct-2022) ODF Data PPS Data (Dr. T. Boller)

4083 0893811301 Sgr a* 17:45:40.00 -29:00:28.0 56.5 DPS (01-Oct-2022) ODF Data PPS Data (Dr. J. Neilsen)

4079 0893811101 Sgr a* 17:45:40.00 -29:00:28.0 54.2 DPS (24-Sep-2022) ODF Data PPS Data (Dr. J. Neilsen)

4059 0893810501 2MASX J02344872-4419 02:34:48.72 -44:19:32.5 25.0 ToO (15-Aug-2022) ODF Data PPS Data (Dr. R. Arcodia)

4058 0893810901 PKS1413+135 14:15:58.80 +13:20:23.0 13.5 ToO (10-Aug-2022) ODF Data PPS Data (Dr. E. Lindfors)

4058 0893810701 ASASSN-20qc 04:13:02.40 -53:04:21.8 29.2 ToO (10-Aug-2022) ODF Data PPS Data (Dr. D. Pasham)

4057 0893810801 Mkn 501 16:53:52.22 +39:45:36.6 22.5 ToO (10-Aug-2022) ODF Data PPS Data (Dr. E. Pian)

4056 0893810601 GRB211211A 14:09:10.12 +27:53:18.1 67.0 ToO (08-Aug-2022) ODF Data PPS Data (Dr. P. D'Avanzo)

4050 0893810401 SDSSJ1430+2303 14:30:16.04 +23:03:44.2 78.7 ToO (24-Jul-2022) ODF Data PPS Data (Dr. N. Jiang)

4043 0893810301 NGC5907 ULX1 15:15:58.60 +56:18:10.0 51.9 ToO (11-Jul-2022) ODF Data PPS Data (Dr. D. Walton)

4040 0893810201 SDSSJ1430+2303 14:30:16.04 +23:03:44.2 56.6 ToO (5-Jul-2022) ODF Data PPS Data (Dr. N. Jiang)

4036 0891802501 CN Leo 10:56:23.21 +06:59:54.0 31.0 ToO (Public) ODF Data PPS Data (Dr. R. Paudel)

4035 0893810101 GRB211211A 14:09:10.12 +27:53:18.1 39.9 ToO (Public) ODF Data PPS Data (Dr. P. D'Avanzo)

4035 0891804201 RBS 1124 12:31:36.56 +70:44:13.3 33.2 ToO (Public) ODF Data PPS Data (Dr. D. Walton)

4035 0891802401 CN Leo 10:56:23.21 +06:59:54.0 29.8 ToO (Public) ODF Data PPS Data (Dr. R. Paudel)

4034 0891802301 CN Leo 10:56:23.21 +06:59:54.0 36.4 ToO (Public) ODF Data PPS Data (Dr. R. Paudel)

4034 0891801901 CN Leo 10:56:23.21 +06:59:54.0 37.0 ToO (Public) ODF Data PPS Data (Dr. R. Paudel)

4032 0891804001 RBS 1124 12:31:36.56 +70:44:13.3 31.4 ToO (Public) ODF Data PPS Data (Dr. D. Walton)

4029 0891803801 ASASSN-20qc 04:13:02.45 -53:04:21.7 40.6 ToO (Public) ODF Data PPS Data (Dr. D. Pasham)

4027 0891803701 ASASSN-20qc 04:13:02.45 -53:04:21.7 31.3 ToO (Public) ODF Data PPS Data (Dr. D. Pasham)

4023 0891803001 C/2021 A1 12:54:54.00 +31:45:08.0 44.5 ToO (Public) ODF Data PPS Data (Dr. K. Dennerl)

4019 0891801301 AD Leo 10:19:36.00 +19:52:11.5 86.0 ToO (Public) ODF Data PPS Data (Dr. B. Stelzer)

4018 0891802101 2MASX J01110461-4558 01:11:04.76 -45:58:04.3 18.0 ToO (Public) ODF Data PPS Data (Dr. D. Lin)

4010 0891802601 ESO 490-G026 06:40:11.69 -25:53:43.0 12.6 ToO (Public) ODF Data PPS Data (Dr. M. Krumpe)

4002 0891802001 V4641 Sgr 18:19:21.60 -25:24:25.8 5.0 ToO (Public) ODF Data PPS Data (Dr. S. Motta)

3991 0891801701 WISEA J045649.8-2037 04:56:49.80 -20:37:47.9 127.5 ToO (Public) ODF Data PPS Data (Dr. Z. Liu)

3983 0891801601 EC 04570-5206 04:58:15.63 -52:02:02.6 33.0 ToO (Public) ODF Data PPS Data (Dr. M. Krumpe)

3979 0891801401 TC0221 15:48:43.10 +22:08:13.0 33.1 ToO (Public) ODF Data PPS Data (Dr. J. Somalwar)

3979 0891801201 PSR J1740-5340B 17:40:45.00 -53:40:41.0 30.2 ToO (Public) ODF Data PPS Data (Dr. M. McLaughlin)

3977 0891801501 NGC 5907 ULX1 15:15:58.59 +56:18:10.0 67.2 ToO (Public) ODF Data PPS Data (Dr. D. Walton)

3974 0891801101 WISEA J045649.8-2037 04:56:49.80 -20:37:47.9 51.1 ToO (Public) ODF Data PPS Data (Dr. Z. Liu)

3967 0891800801 V767 Cen 13:53:57.20 -47:07:41.4 5.0 ToO (Public) ODF Data PPS Data (Dr. Y. Naze)

3967 0891800601 XMMSL1 J024916.6-041244 02:49:17.30 -04:12:52.0 30.0 DPS (Public) ODF Data PPS Data (Dr. E. Kara)

3960 0891800701 4FGL J1408.6-2917 14:08:26.80 -29:22:21.2 24.4 ToO (Public) ODF Data PPS Data (Dr. S. Swihart)

3960 0891800301 RX J1605.3+3249 16 05:18.90 +32:49:07.0 30.3 ToO (Public) ODF Data PPS Data (Dr. F. Haberl)

3959 0891800101 ASASSN-20qc 04:13:02.45 -53:04:21.7 26.1 ToO (Public) ODF Data PPS Data (Dr. D.Pasham)

3958 0854180401 4FGL J0304.5-0054 03:04:34.15 -00:54:53.2 23.9 ToO (Public) ODF Data PPS Data (Dr. R. Prince)

3956 0891800401 NGC 1052 02:41:04.80 -08:15:20.8 28.3 ToO (Public) ODF Data PPS Data (Dr. V. Ramakrishnan)

3952 0891800501 BL Lac 22:02:43.29 +42:16:39.9 19.6 ToO (Public) ODF Data PPS Data (Dr. R. Khatoon)

3946 0872393301 ton 599 11:59:31.83 +29:14:43.8 14.5 ToO (Public) ODF Data PPS Data (Dr. R. Prince)

3946 0872393201 LEDA 738823 02:43:45.70 -28:40:40.0 32.9 ToO (Public) ODF Data PPS Data (Dr. J. Somalwar)

3938 0872393101 4FGL J2108.0+5155 21:08:04.00 +51:55:39.0 16.9 ToO (Public) ODF Data PPS Data (Dr. R. Walter)

3925 0872392901 AT20200cn 13:53:53.77 +53:59:49.6 67.1 ToO (Public) ODF Data PPS Data (Dr. D. Pasham)

3925 0872392601 FRB 20200120E 09:57:56.00 +68:49:32.0 30.0 ToO (Public) ODF Data PPS Data (Dr. P. Scholz)

For ToO data prior to revolution 3925, 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	Proposer/ Comments
4140	0911791701	J114447.77-430859.3	11:44:47.77	-43:08:59.3	15.2	ToO (Public)	ODF Data	PPS Data	(Dr. E. Kammoun)
4138	0910190701	SDSSJ1430+2303	14:30:16.00	+23:03:44.0	110.7	ToO (TBD)	ODF Data	PPS Data	(Dr. N. Jiang)
4137	0911790301	em01_044099_020_ML00016_002_c946	02:55:08.24	-08:18:46.1	18.0	DPS (TBD)	ODF Data	PPS Data	(Dr. T. Boller)
4131	0910190101	SDSSJ1430+2303	14:30:16.00	+23:03:44.0	104.0	ToO (TBD)	ODF Data	PPS Data	(Dr. N. Jiang)
4129	0911790201	em01_209084_020_ML00124_002_c946	13:51:21.60	+04:45:41.0	23.0	DPS (30-Dec-2022)	ODF Data	PPS Data	(Dr. T. Boller)
4127	0911791601	NGC 4156	12:10:49.60	+39:28:22.0	36.1	ToO (27-Dec-2022)	ODF Data	PPS Data	(Dr. E. Lusso)
4121	0911791401	AT2018fyk	22:50:16.10	-44:51:53.5	10.6	ToO (14-Dec-2022)	ODF Data	PPS Data	(Dr. T. Wevers)
4120	0911791101	IRAS F01004-2237	01:02:50.00	-22:21:57.2	37.0	ToO (14-Dec-2022)	ODF Data	PPS Data	(Dr. L. Sun)
4113	0911790801	2mass j09204562+2339	09:20:45.62	+23 39 00.9	57.0	ToO (30-Nov-2022)	ODF Data	PPS Data	(Dr. S. Laha)
4112	0911790901	S4 0954+65	09:58:47.30	+65:33:54.8	19.9	DPS (Public)	ODF Data	PPS Data	(Dr. N. Schartel)
4111	0911790601	AT2018fyk	22:50:16.10	-44:51:53.5	29.0	ToO (27-Dec-2022)	ODF Data	PPS Data	(Dr. T. Wevers)
4110	0911990501	J003836.88-433709.8	00:38:36.90	-43:37:09.8	127.6	Sat. Engineering (public)	ODF Data	PPS Data	(Replenishment)
4109	0911990101	J003836.88-433709.8	00:38:36.90	-43:37:09.8	127.6	Sat. Engineering (public)	ODF Data	PPS Data	(Replenishment)
4105	0911990401	WR 140	20:20:28.00	+43:51:16.3	15.0	ToO (17-Nov-2022)	ODF Data	PPS Data	(Dr. P. Pradhan)
4098	0911790101	em01_140084_020_ML00023_001_c946	09:15:36.77	+06:25:40.6	23.0	DPS (05-Nov-2022)	ODF Data	PPS Data	(Dr. T. Boller)
4096	0911990201	Mrk 817	14:36:22.10	+58:47:39.4	128.8	ToO (04-Nov-2022)	ODF Data	PPS Data	(Dr. J. Miller)
4090	0893811001	ASASSN-20qc	04:13:02.38	-53:04:21.8	45.0	ToO (18-Oct-2022)	ODF Data	PPS Data	(Dr. D. Pasham)
4089	0911790401	em01_135051_020_ML00007_003_c946	09:04:23.31	+40:07:04.7	18.0	DPS (11-Oct-2022)	ODF Data	PPS Data	(Dr. T. Boller)
4083	0893811301	Sgr a*	17:45:40.00	-29:00:28.0	56.5	DPS (01-Oct-2022)	ODF Data	PPS Data	(Dr. J. Neilsen)
4079	0893811101	Sgr a*	17:45:40.00	-29:00:28.0	54.2	DPS (24-Sep-2022)	ODF Data	PPS Data	(Dr. J. Neilsen)
4059	0893810501	2MASX J02344872-4419	02:34:48.72	-44:19:32.5	25.0	ToO (15-Aug-2022)	ODF Data	PPS Data	(Dr. R. Arcodia)
4058	0893810901	PKS1413+135	14:15:58.80	+13:20:23.0	13.5	ToO (10-Aug-2022)	ODF Data	PPS Data	(Dr. E. Lindfors)
4058	0893810701	ASASSN-20qc	04:13:02.40	-53:04:21.8	29.2	ToO (10-Aug-2022)	ODF Data	PPS Data	(Dr. D. Pasham)
4057	0893810801	Mkn 501	16:53:52.22	+39:45:36.6	22.5	ToO (10-Aug-2022)	ODF Data	PPS Data	(Dr. E. Pian)
4056	0893810601	GRB211211A	14:09:10.12	+27:53:18.1	67.0	ToO (08-Aug-2022)	ODF Data	PPS Data	(Dr. P. D'Avanzo)
4050	0893810401	SDSSJ1430+2303	14:30:16.04	+23:03:44.2	78.7	ToO (24-Jul-2022)	ODF Data	PPS Data	(Dr. N. Jiang)
4043	0893810301	NGC5907 ULX1	15:15:58.60	+56:18:10.0	51.9	ToO (11-Jul-2022)	ODF Data	PPS Data	(Dr. D. Walton)
4040	0893810201	SDSSJ1430+2303	14:30:16.04	+23:03:44.2	56.6	ToO (5-Jul-2022)	ODF Data	PPS Data	(Dr. N. Jiang)
4036	0891802501	CN Leo	10:56:23.21	+06:59:54.0	31.0	ToO (Public)	ODF Data	PPS Data	(Dr. R. Paudel)
4035	0893810101	GRB211211A	14:09:10.12	+27:53:18.1	39.9	ToO (Public)	ODF Data	PPS Data	(Dr. P. D'Avanzo)
4035	0891804201	RBS 1124	12:31:36.56	+70:44:13.3	33.2	ToO (Public)	ODF Data	PPS Data	(Dr. D. Walton)
4035	0891802401	CN Leo	10:56:23.21	+06:59:54.0	29.8	ToO (Public)	ODF Data	PPS Data	(Dr. R. Paudel)
4034	0891802301	CN Leo	10:56:23.21	+06:59:54.0	36.4	ToO (Public)	ODF Data	PPS Data	(Dr. R. Paudel)
4034	0891801901	CN Leo	10:56:23.21	+06:59:54.0	37.0	ToO (Public)	ODF Data	PPS Data	(Dr. R. Paudel)
4032	0891804001	RBS 1124	12:31:36.56	+70:44:13.3	31.4	ToO (Public)	ODF Data	PPS Data	(Dr. D. Walton)
4029	0891803801	ASASSN-20qc	04:13:02.45	-53:04:21.7	40.6	ToO (Public)	ODF Data	PPS Data	(Dr. D. Pasham)
4027	0891803701	ASASSN-20qc	04:13:02.45	-53:04:21.7	31.3	ToO (Public)	ODF Data	PPS Data	(Dr. D. Pasham)
4023	0891803001	C/2021 A1	12:54:54.00	+31:45:08.0	44.5	ToO (Public)	ODF Data	PPS Data	(Dr. K. Dennerl)
4019	0891801301	AD Leo	10:19:36.00	+19:52:11.5	86.0	ToO (Public)	ODF Data	PPS Data	(Dr. B. Stelzer)
4018	0891802101	2MASX J01110461-4558	01:11:04.76	-45:58:04.3	18.0	ToO (Public)	ODF Data	PPS Data	(Dr. D. Lin)
4010	0891802601	ESO 490-G026	06:40:11.69	-25:53:43.0	12.6	ToO (Public)	ODF Data	PPS Data	(Dr. M. Krumpe)
4002	0891802001	V4641 Sgr	18:19:21.60	-25:24:25.8	5.0	ToO (Public)	ODF Data	PPS Data	(Dr. S. Motta)
3991	0891801701	WISEA J045649.8-2037	04:56:49.80	-20:37:47.9	127.5	ToO (Public)	ODF Data	PPS Data	(Dr. Z. Liu)
3983	0891801601	EC 04570-5206	04:58:15.63	-52:02:02.6	33.0	ToO (Public)	ODF Data	PPS Data	(Dr. M. Krumpe)
3979	0891801401	TC0221	15:48:43.10	+22:08:13.0	33.1	ToO (Public)	ODF Data	PPS Data	(Dr. J. Somalwar)
3979	0891801201	PSR J1740-5340B	17:40:45.00	-53:40:41.0	30.2	ToO (Public)	ODF Data	PPS Data	(Dr. M. McLaughlin)
3977	0891801501	NGC 5907 ULX1	15:15:58.59	+56:18:10.0	67.2	ToO (Public)	ODF Data	PPS Data	(Dr. D. Walton)
3974	0891801101	WISEA J045649.8-2037	04:56:49.80	-20:37:47.9	51.1	ToO (Public)	ODF Data	PPS Data	(Dr. Z. Liu)
3967	0891800801	V767 Cen	13:53:57.20	-47:07:41.4	5.0	ToO (Public)	ODF Data	PPS Data	(Dr. Y. Naze)
3967	0891800601	XMMSL1 J024916.6-041244	02:49:17.30	-04:12:52.0	30.0	DPS (Public)	ODF Data	PPS Data	(Dr. E. Kara)
3960	0891800701	4FGL J1408.6-2917	14:08:26.80	-29:22:21.2	24.4	ToO (Public)	ODF Data	PPS Data	(Dr. S. Swihart)
3960	0891800301	RX J1605.3+3249	16 05:18.90	+32:49:07.0	30.3	ToO (Public)	ODF Data	PPS Data	(Dr. F. Haberl)
3959	0891800101	ASASSN-20qc	04:13:02.45	-53:04:21.7	26.1	ToO (Public)	ODF Data	PPS Data	(Dr. D.Pasham)
3958	0854180401	4FGL J0304.5-0054	03:04:34.15	-00:54:53.2	23.9	ToO (Public)	ODF Data	PPS Data	(Dr. R. Prince)
3956	0891800401	NGC 1052	02:41:04.80	-08:15:20.8	28.3	ToO (Public)	ODF Data	PPS Data	(Dr. V. Ramakrishnan)
3952	0891800501	BL Lac	22:02:43.29	+42:16:39.9	19.6	ToO (Public)	ODF Data	PPS Data	(Dr. R. Khatoon)
3946	0872393301	ton 599	11:59:31.83	+29:14:43.8	14.5	ToO (Public)	ODF Data	PPS Data	(Dr. R. Prince)
3946	0872393201	LEDA 738823	02:43:45.70	-28:40:40.0	32.9	ToO (Public)	ODF Data	PPS Data	(Dr. J. Somalwar)
3938	0872393101	4FGL J2108.0+5155	21:08:04.00	+51:55:39.0	16.9	ToO (Public)	ODF Data	PPS Data	(Dr. R. Walter)
3925	0872392901	AT20200cn	13:53:53.77	+53:59:49.6	67.1	ToO (Public)	ODF Data	PPS Data	(Dr. D. Pasham)
3925	0872392601	FRB 20200120E	09:57:56.00	+68:49:32.0	30.0	ToO (Public)	ODF Data	PPS Data	(Dr. P. Scholz)