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:

The links from entries in this table are as follows:

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
TBD. TBD RBS 1774 21:43:03.80 +06:54:20.0 30.0 ToO (TBD) ODF Data PPS Data (Dr. G. Pavlov)
TBD. TBD NGC3783 11:39:01.70 -37:44:19.0 110.0 DPS (TBD) ODF Data PPS Data (XRISM PV / Dr. J. Kaastra)
4499 TBD NGC4151 12:10:32.60 +39:24:20.6 50.0 DPS (TBD) ODF Data PPS Data (XRISM PV / Dr. J. Miller)
4490 TBD NGC4151 12:10:32.60 +39:24:20.6 50.0 DPS (TBD) ODF Data PPS Data (XRISM PV / Dr. J. Miller)
4484 TBD NGC4395 12:25:48.90 +33:32:48.7 20.0 DPS (TBD) ODF Data PPS Data (Dr. I. McHardy)
4483 TBD NGC4395 12:25:48.90 +33:32:48.7 20.0 DPS (TBD) ODF Data PPS Data (Dr. I. McHardy)
4477 TBD NGC4151 12:10:32.60 +39:24:20.6 50.0 DPS (TBD) ODF Data PPS Data (XRISM PV / Dr. J. Miller)
4474 0935190301 RBS 1774 21:43:03.80 +06:54:20.0 34.9 ToO (TBD) ODF Data PPS Data (Dr. G. Pavlov))
4467 0935190101 AT2019teq 18:59:05.50 +47:31:05.7 55.8 ToO (TBD) ODF Data PPS Data (Dr. J. Chakraborty)
4462 0934990301 4U1916-053 19:18:47.90 -05:14:09.0 55.3 DPS (TBD) ODF Data PPS Data (XRISM PV / Dr. M. Diaz-Trigo)
4460 0934990201 4U1916-053 19:18:47.90 -05:14:09.0 105.2 DPS (TBD) ODF Data PPS Data (XRISM PV / Dr. M. Diaz-Trigo)
4459 0934990101 SS 433 19:11:49.60 +04:58:57.8 66.9 DPS (24-Apr-2025) ODF Data PPS Data (XRISM PV / Dr. M. Shidatsu)
4457 0935190201 AT 2024eff 05:51:41.90 -19:13:06.2 26.8 ToO (15-Oct-2024) ODF Data PPS Data (Dr. Y. Wang)
4454 0932392301 Sgr A* 17:45:40.00 -29:00:28.1 55.7 DPS (Public) ODF Data PPS Data (N. Schartel)
4442 0932392101 1ES 1927+654 19:27:19.50 +65:33:54.3 33.1 ToO (27-Sep-2024) ODF Data PPS Data (Dr. M. Masterson)
4441 0932392201 AT2020ayl 16:01:00.40 +33:16:15.9 16.0 ToO (15-Jan-2024) ODF Data PPS Data (Dr. S. Xinwen)
4438 0932392001 1ES 1927+654 19:27:19.50 +65:33:54.3 33.0 ToO (08-Sep-2024) ODF Data PPS Data (Dr. M. Masterson)
4428 0932391601 ZTF21abccdld 15:56:41.90 +68:22:42.9 36.9 ToO (22-Aug-2024) ODF Data PPS Data (Dr. Z. Lin)
4427 0932391901 ZTF20abwtifz 03:13:35.70 -02:09:06.2 23.1 ToO (20-Aug-2024) ODF Data PPS Data (Dr. S. Gezari)
4409 0932391401 eRO-QPE1 02:31:47.30 -10:20:10.3 126.1 ToO (11-Jul-2024) ODF Data PPS Data (Dr. R. Arcodia)
4408 0932391201 ASASSN-14ko 05:25:18.10 -46:00:20.3 50.7 ToO (09-Jul-2024) ODF Data PPS Data (Dr. J. Chakraborty)
4407 0932391501 AT2022upj 00:23:56.80 -24:25:23.0 37.5 ToO (09-Jul-2024) ODF Data PPS Data (Dr. Z. Lin)
4403 0932390701 ZTF22abajudi 02:20:08.00 -22:43:15.4 43.0 ToO (02-Jul-2024) ODF Data PPS Data (Dr. Y. Yao)
4399 0932391301 AT2023lli 22:57:39.50 +40:32:40.7 20.0 ToO (27-Jun-2024) ODF Data PPS Data (Dr. S. Huang)
4395 0931791301 2MASX J02344872-4419325 02:34:48.70 -44:19:32.5 36.0 ToO (15-Jun-2024) ODF Data PPS Data (Dr. R. Arcodia)
4391 0932391101 GRB231117A 22:09:33.60 +13:31:21.1 59.9 ToO (11-Jun-2024) ODF Data PPS Data (Dr. E. Troja)
4390 0932390201 Cloverleaf ORC 11:37:23.52 -00:50:49.1 35.0 ToO (11-Jun-2024) ODF Data PPS Data (Dr. E. Bulbul)
4389 0932390901 pi Aqr 22:25:16.60 +01:22:38.6 10.0 ToO (11-Jun-2024) ODF Data PPS Data (Dr. Y. Naze)
4384 0932391001 GRB231115A 09:56:00.20 +69:40:29.2 55.0 ToO (Public) ODF Data PPS Data (Dr. A. Levan, Dr. S. Campana & Dr. S. Mereghetti)
4384 0932390801 J0704-37 07:04:13.20 -37:06:14.6 34.5 ToO (24-May-2023) ODF Data PPS Data (Dr. N. Rea)
4368 0932390601 GX 13+1 18:14:31.50 -17:09:26.7 16.0 ToO (19-Apr-2024) ODF Data PPS Data (Dr. A. Bobrikova)
4367 0932390301 V404 Cyg 20:24:03.80 +33:52:02.0 18.9 DPS (19-Apr-2024) ODF Data PPS Data (Dr. R. Hynes)
4363 0932390401 2SXPS J195654.1+3049 19:56:54.20 +30:49:38.8 18.4 ToO (11-Apr-2024) ODF Data PPS Data (Dr. L. Marcotulli)
4360 0932390501 gx 339-4 17:02:49.40 -48:47:23.1 15.0 ToO (06-Apr-2024) ODF Data PPS Data (Dr. P. Petrucci)
4359 0931791201 WISEA J045649.8-20 04:56:49.80 -20:37:47.9 13.4 ToO (Public) ODF Data PPS Data (Dr. Z. Liu)
4353 0932390101 ESO 184-G042 19:14:22.00 -54:33:56.2 20.0 ToO (Public) ODF Data PPS Data (Dr. K. Dolag)
4351 0931791501 WISEA J045649.8-20 04:56:49.80 -20:37:47.9 18.3 ToO (Public) ODF Data PPS Data (Dr. L. Zhu)
4343 0931791001 WISEA J045649.8-20 04:56:49.80 -20:37:47.9 16.0 ToO (Public) ODF Data PPS Data (Dr. L. Zhu)
4333 0931791401 1ES 1927+654 19:27:19.50 +65:33:54.3 36.4 ToO (Public) ODF Data PPS Data (Dr. S. Laha)
4326 0931790701 ngc 5273 13:42:08.38 +35:39:15.4 12.8 ToO (Public) ODF Data PPS Data (Dr. F. Vincentelli)
4320 0931790601 GX 304-1 13:01:17.10 -61:36:06.6 8.0 DPS (Public) ODF Data PPS Data (Dr. A. Zainab)
4320 0931790501 SAX J1324.4-6200 13:24:26.70 -62:01:19.5 28.0 DPS (Public) ODF Data PPS Data (Dr. L. Ducci)
4319 0914793101 GSN 069 01:19:08.50 -34:11:30.5 108.2 ToO (Public) ODF Data PPS Data (Dr. G. Miniutti)
4314 0931790401 1E2259+586 23:01:08.10 +58:52:44.0 20.5 ToO (Public) ODF Data PPS Data (Dr. R. Taverna)
4304 0914792901 GSN069 01:19:08.70 -34:11:30.5 119.7 ToO (Public) ODF Data PPS Data (Dr. G. Miniutti)
4303 0931790301 AT2023cvb 19:14:25.70 +41:40:09.3 63.6 DPS (Public) ODF Data PPS Data (Dr. N. Schartel)
4302 0931790201 AT2021lwx 21:13:48.40 +27:25:50.5 56.1 ToO (Public) ODF Data PPS Data (Dr. M. Guolo)
4298 0914792701 GSN 069 01:19:08.66 -34:11:30.5 60.0 ToO (Public) ODF Data PPS Data (Dr. G. Miniutti)
4297 0931790101 SN2023ixf 14:03:38.60 +54:18:42.0 83.6 ToO (Public) ODF Data PPS Data (Dr. S. Campana)
4296 0930590801 ESO 198-G24 02:38:19.72 -52:11:32.3 116.2 Sat. Engineering (public) ODF Data PPS Data (Replenishment)
4295 0939590601 ESO 198-G24 02:38:19.72 -52:11:32.3 116.2 Sat. Engineering (public) ODF Data PPS Data (Replenishment)
4294 0915392001 AT2020vdq 10:08:53.50 +42:43:00.4 16.1 ToO (Public) ODF Data PPS Data (Dr. J. Somalwar)
4284 0930590301 B2 0917+23 09:20:45.60 +23:38:60.0 56.2 ToO (Public) ODF Data PPS Data (Dr. S. Laha)
4275 0915391701 GRB 230307A 04:03:26.20 -75:22:43.8 119.9 ToO (Public) ODF Data PPS Data (Dr. B. O'Connor)
4272 0930590101 SGR1806-20 18:08:39.30 -20:24:40.1 45.0 ToO (Public) ODF Data PPS Data (Dr. R. Turolla)
4263 0915391601 GRB 230307A 04:03:26.20 -75:22:43.8 52.5 ToO (Public) ODF Data PPS Data (Dr. E. Troja)
4259 0915391401 GRB 230307A 04:03:25.80 -75:22:42.7 49.9 ToO (Public) ODF Data PPS Data (Dr. S. Mereghetti)
4255 0915391301 PSR B1259-63 13:02:47.70 -63:50:08.6 19.7 ToO (Public) ODF Data PPS Data (Dr. M. Chernyakova)
4255 0915390501 WISEA J045649.8-2037 04:56:49.80 -20:37:47.9 25.0 ToO (Public) ODF Data PPS Data (Dr. L. Zhu)

For ToO data prior to revolution 4250, please refer to the ToO Archive Page