Spacewalking astronauts start ISS battery replacement moves

by | Oct 7, 2019 | International Space Station, NASA

On 4 October 2019, the Canadarm-2 robot arm took Exposed Pallet-8 ( EP-8) with batteries attached off the POA (Payload ORU Accommodations) again and moved it next to the P6 truss in preparation for spacewalk operations.

The International Space Station (ISS). Courtesy: NASA

On 6 October 2018, NASA astronauts Koch and Morgan made a spacewalk to move batteries as part of a change and repair process. The Quest airlock was depressurised at 1132 GMT and its hatch was opened at 1138 GMT and the hatch was closed at 1835 GMT with repressurisation four minutes after that. During the spacewalk the following moves were performed: NiH battery 0087 was removed from P6 IEA 2B slot 1 and installed on EP8 Slot X.Li-ion battery 0015 was moved from EP8 Slot A to P6 IEA 2B slot 1, NiH battery 0093 was moved from P6 IEA 2B slot 2 to EP8 Slot A. Adapter plate SN09 was moved from EP8 Slot A to P6 IEA 2B slot 2. NiH battery 0096 was moved from P6 IEA 2B Slot 3 to Slot 2, on top of the adapter plate. Li-ion battery 0005 was moved from EP8 Slot B to P6 IEA 2B slot 3.

On 11 October, astronauts Koch and Morgan, began a second spacewalk to change out the batteries. Their depressurisation procedure was completed at 1823 GMT and the hatch was open from 1137 GMT. The spacewalk ended with hatch shutting at 1814 GMT.

During the spacewalk the NiH battery 0099 was moved from P6 2B slot 4 to EP8 slot B Adapter plate SN10 was moved from EP8 slot B to P6 2B slot 4. NiH battery 0100 was moved from P6 2B slot 6 to the adapter plate in slot 4. Li-ion battery SN17 was moved from EP8 slot D to P6 2B slot 6. NiH battery 0097 was moved from P6 2B slot 5 to EP8 slot D. Adapter plate SN12 was moved from EP8 slot D to P6 2B slot 5. This completed the work on P6’s 2B side, with three Li-ion batteries and 3 adapter plates installed, four NiH batteries moved to the EP for disposal and two NiH batteries stored on top of adapter plates.

All times and moves from Jonathan McDowell.

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