Undoing of cabling between Pirs and Zvezda, transferral of airlock hardware from Pirs to Poisk.
Thus, the 48th planned spacewalk under the Russian program will be devoted to preparations for undocking the Pirs docking compartment-module, to which the Nauka module will subsequently arrive. The Russian ISS crew members will disconnect the Kurs-P antenna-feeder device (AFD) of the Zvezda service module from the Kurs-P of the Pirs module and connect it to the Kurs-P AFU of the nadir docking assembly of the Zvezda module transition compartment ". In addition, they will transfer the GStM2 cargo boom from the Pirs module to the storage position on the Search module and dismantle the docking target at the Pirs module docking station.In addition to preparations for undocking the Pirs module, Roskosmos cosmonauts will replace the replaceable fluid flow control panel on the Zarya functional cargo block, and if time is available, the Endurance and Test space experiment panels will be installed on the small research module "Search" for the Russian segment of the International Space Station.https://www.roscosmos.ru/29696/
1 Pre RS EVA 48 Configuration3 EV1/EV2 Open MRM2 Hatch 1 and Install Protective Ring5 EV2 Egress MRM26 EV1/EV2 Retrieve SP RRZh Airtight Container from MRM27 EV1 Egress MRM28 EV1/EV2 Transfer Airtight Container to FGB9 EV1/EV2 Install Airtight Container to FGB and Open10 EV1/EV2 Open MLI on FGB Patch Panel next to HR 136011 EV1/EV2 Disconnect Flow Regulator Connectors12 EV1/EV2 Remove Old SP RRZh and Temp Stow on Container13 EV1/EV2 Retrieve New SP RRZh and Install on FGB14 EV1/EV2 Reconnect Flow Regulators15 EV1/EV2 Take Photos and Close MLI Flaps16 EV1/EV2 Stow Old SP RRZh in Airtight Container17 EV1/EV2 Close Container and PRV18 EV1/EV2 Remove Airtight Container and Set Latches19 EV1/EV2 Inspect Orlans20 EV1/EV2 Translate to MRM2 Hatch 1 with Airtight Container21 EV1/EV2 Jettison Airtight Container from STRELAI OP23 EV2 Translate to STRELA1 EE on DC124 EV1 Translate to STRELA1 OP25 EV2 Release STRELA1 EE26 EV2 Maneuver STRELA1 and retract to MRM2 HR 600927 EV1/EV2 Tether STRELA1 EE to MRM2 HR 600929 EV1/EV2 Translate to FP 9 Panel on SM Plane III30 EV1/EV2 Demate KHFP Connectors 9-5-1 to 9-7-1 from OP9 panel31 EV1/EV2 Mate KHFP Connectors 9-5 to 9-7 to OP9 panel32 EV1/EV2 Secure DC1 Kurs-P NCH cable to HR 2233 and 222633 EV1 Translate to DC1 Kurs-P NCH Panel34 EV2 Translate to Longitudinal HR Plane II-I35 EV1/EV2 Demate Kurs-P-NCH 34U-X3, 34U-X4, and 34U-X5 Connectors36 EV1/EV2 Secure Kurs-P-NCH cable to HR 2112 and 211137 EV1 Demate KHFP 9-9 to 9-12 Connectors on Kurs-P VCH Panel38 EV1 Transfer Kurs-P VCH Cable Harness to EV239 EV2 Reroute Kurs-P-VCH Cable to OP9 Connector on Plane II-III40 EV1 Release Harness from Clamps41 EV2 Mate CHFP 9-9 to 9-12 Kurs-P Harness to OP9 Panel42 EV1 Secure Kurs-P Harness to SM PCHO Circular HR44 EV1/EV2 Translate along Longitudinal HR to EVA Ladder46 EV2 Retrieve Gap Spanner from Longitudinal HR47 EV2 Translate to MRM2 Hatch 148 EV1 Inspect and Image DC1 Docking Assembly49 EV1 Translate to MRM2 Hatch 150 EV2 Stow Gap Spanner and Retrieve VYNOSLIVOST and TEST Payloads51 EV1/EV2 Install VYNOSLIVOST and TEST Payloads52 EV1/EV2 Perform EVA Tools Inventory53 EV1/EV2 Ingress MRM2 Hatch 154 EV2 Remove Ring and Close MRM2 Hatch 1
MOSCOW, April 30. / TASS /. Russian cosmonauts Oleg Novitsky and Pyotr Dubrov will enter open space from the ISS on June 2. This was reported to TASS on Friday by the press service of Roscosmos."The release will take place on June 2," the press service noted.As specified in Roskosmos, the crew members will have to prepare the docking compartment before the arrival of the multifunctional laboratory module "Science" and replace the replaceable panel of the fluid flow regulator of the thermal regime of the functional cargo block.On Thursday, materials from the magazine "Russian Space" (the official publication of Roscosmos) reported that according to the program, the next spacewalk with the participation of Novitsky and Dubrov was to take place in May. In September, they will make two spacewalks to connect electrical cables between the Nauka and Zvezda modules.
Spacewalk on June 2In accordance with the schedule of work on the Russian segment of the International Space Station June 2, 2021 will be the 48th planned spacewalk (EVA number 48), which will perform cosmonauts Roscosmos Oleg Novitsky and Pyotr Dubrov.Preliminary cyclogram of VKD-48 Replacement of the replacement flow regulator panel on module "Zarya" and pushing the pressurized container away from module "Poisk"; transfer of the cargo upgraded boom from the "Pirs" module to the storage position on the "Search" module; disconnecting the antenna-feeder device "Curs-P" of the "Star" module from the "Curs-P" of the "Pirs" module; connecting "Curs-P" of "Zvezda" module to "Curs-P" antenna-feeder device of nadir docking unit of transition compartment; removal of halyard-transfer unit of small-diameter working compartment of module "Zvezda"; installation of necessary equipment for scientific space experiments "Test" and "Endurance" on the outer surface of the module "Search".
Roscosmos cosmonauts finish spacewalkJune 02, 2021, 15:23 GMTThe Poisk Mini-Research Module exit hatch is closed now, and Roscosmos cosmonauts Oleg Novitskiy and Pyotr Dubrov have completed the 48th planned spacewalk (VKD-48). During their debut extravehicular activity, they successfully installed all the equipment on the outer surface of the Russian segment of the International Space Station. The hatch of the Poisk docking compartment was closed at 13:12 UTC on June 2, 2021. The spacewalk lasted for 7 hours 19 minutes.For the second time in the history of the International Space Station operation, the Russian spacewalk was carried out from the Poisk module docking compartment. The module was launched in 2009, but until November 18, 2020, the cosmonauts used the Pirs module for spacewalks. The latter is now being prepared for undocking from the ISS. This is the 55th Russian EVA at the ISS, the first one in 2021 and the debut for both Roscosmos cosmonauts.As Oleg Novitskiy noted earlier, the peculiarity of spacewalk is the combination of resource work, space experiments and the preparation of the International Space Station to receive the new Nauka module, which is scheduled to launch this summer.In 7 hours, Oleg Novitsky and Petr Dubrov routinely replaced the removable panel of the fluid flow regulator of the Zarya functional cargo unit and threw the old panel into space. According to the Mission Control Center preliminary assessment, the pressurized container left the International Space Station in the right direction. Within the next 2-3 days, it will completely burn up in the dense layers of the atmosphere. The thermal control system regulator has already been replaced three times due to the end of its life in the history of the ISS.In addition, the 65th long-term expedition Russian crewmembers prepared the Pirs module for undocking, which arrived in 2001. They removed all external connections between Pirs and the International Space Station: to do so, they removed the M1 upgraded cargo boom from the module, re-docked the cables of the Kurs rendezvous system antennas and removed the handrail system between the Russian Pirs and Zvezda modules. After this operation was completed, the Russian specialists confirmed successful test functioning of the Kurs system after reconnecting. Oleg Novitskiy and Pyotr Dubrov also installed new equipment for the ‘Test’ and ‘Vynoslivost’ Russian scientific experiments to study the effect of space conditions on various microorganisms and materials.Today's extravehicular activities were carried out in Orlan-MKS spacesuits (modernized, computerized, synthetic), one with red stripes (Oleg Novitskiy), the other with blue stripes (Pyotr Dubrov). The previous EVA took place on November 18, 2020. The spacewalk is controlled from the TsNIIMash Mission Control Center (part of Roscosmos) by the specialists of the Chief Operating Control Group, responsible for the extravehicular activities of the crew.Currently, the International Space Station crew includes Roscosmos cosmonauts Oleg Novitskiy and Pyotr Dubrov, NASA astronauts Mark Vande Hei, Shane Kimbrough, Megan MacArthur, ESA astronaut Tomas Pesquet and Japan Aerospace Exploration Agency astronaut Akihiko Hoshide.
