From official ARISS social media accounts:
A Russian MAI-SSTV event is planned for Wednesday, June 5 from 12:00-16:00 UTC and June 6 from 11:30-15:30 UTC. We expect transmissions to be at 145.800 MHz in SSTV mode PD120. Based on the times received, we do not expect SSTV signals over N. America as the orbits are only those that overfly Moscow and adjacent areas. Please stay tuned here and at our ARISS Twitter account for any updates. Dave, AA4KN, ARISS PR.
Any additional details or changes will be noted here: