In the Announcement of Opportunity 12 (AO-12) the data access rights policy has changed with respect to previous AO.s. From AO-12 and onwards, data or science rights to the targets or science in the field of view (FOV) of the instruments proposed by the PIs and accepted by the TAC will be allocated to these PIs with the usual 1-year proprietary period.
Note that a proposer can never ask for data rights for the entire FOV or data rights for all sources (known/unknown) to be found in the FOV, see for more details the document SRE-OO-AO-00069: Announcement of Opportunity for Observing Proposals: Overview, Policies and Procedures (from AO-12 and onwards).
If the PI is from a country other than the Russian Federation, the rest of the field will be made public. This holds for normal proposals as well as ToO proposals. Since INTEGRAL has on-board coded mask instruments, it means that all these data are available to the public. Following the one-year data rights proprietary period, all data will be made normally publicly available through the public archives, i.e., the data are freed from any data rights.
If the PI is from the Russian Federation a similar policy is followed, except that the rest of the field will be open only to all Russian Federation scientists currently working at Russian Federation scientific institutes. This holds for normal as well as Target of Opportunity (ToO) proposals. Access to these data for such scientists will be provided by the Russian Science Data Centre for INTEGRAL located at the Space Research Institute in Moscow, under the one-year proprietary policy. The data under these proposals from the Russian Federation will only be open to the public at large after the 1-year proprietary period has ended, and provided through the public archives.