Following the successfull commissioning of spacecraft and payload, XRISM is within the 6-months Performance Verification Phase (PVP). The goal of this phase is to showcase the XRISM transformational science, while providing the scientific community worldwide with a comprehensive set of experiments thoroughly verifying the capability of the mission to fulfill all its scientific goals.

The list of PVP targets approved by the XRISM Science Management Office Steering is shown below. Note that:

• The first column indicates the Category Team to which each Target belongs: GC=Galactic Compact; GD=Galactic Diffuse; ECG=Extra-Galactic Compact; EGD=Extra-Galactic Diffuse
• Priority A observations will be either observed during the PVP, or carried to later phases of the mission if a successfull observation during the nominal PVP is not possible
• Priority C observations will be used to optimise the observational efficiency during the PVP, and have a probably of about 50% to be actually observed. Priority C observations not performed during the nominal PVP will not be carried to later phases of the mission
• 5% of the PVP observing time will be reserved to calibration observations (the corresponding target list will be published shortly)
• 8% of the PVP observing time is allocated to "observatory time" including Director's Discretionary Time (to be used, for instance, for low-probablity Target-of-Opportunity events)
• Data of the PVP observations are reserved to the members of the XRISM Science Team, as well as to a small numer of "XRISM Guest Scientists" already selected by the participating agencies (JAXA, NASA, ESA). Data will be made public following the rules holding for all XRISM proprietary data.
• A small set of Early Release Science data will be made public at the time of the first Guest Observer opportunity.
• A document is available, describing the science objectives of the XRISM Performance Verification, and the science plan (observation and data analysis strategy and objectives) for each PV target.

 For any questions on the XRISM PVP, you are welcome to contact the XRISM ESA Project Scientist.

​​​​​​The list is also available under the JAXA and the NASA XRISM web portals.

Note that a few sky positions centered around, or close to bright X-ray sources were observed during the XRISM commissioning phase. Sources interested by these observations - beyond those included in the PV and IFCP programs - are: AO Psc, Centaurus Cluster, LMCX-3. N132D, PKS0745-19, PSRB1937+21, Z Cam. Some of the commissionig phase observations were taken with special instrument configurations. It is unknown in this moment which of them will be able to eventually yield scientifically usable data. However, it is a responsibility of the prospective Principal Investigator to verify that the sky positions of the targets in her/his proposal do not coincide with positions already observed by XRISM. The list of Targets already observed is available and continuously mantained by JAXA.

The long-term plan of PV targets is listed under https://xrism.isas.jaxa.jp/research/observers/longterm/Longterm_202403A.dat

Calibration Targets

Coordinates values are rounded to the third decimal place.

Target position may be changed at each observation.