STS-96 Day 4 Highlights

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On Sunday, May 30, 1999, 7:30 a.m. CDT, STS-96 MCC Status Report # 08 reports:

STS-96 Astronauts Tammy Jernigan and Dan Barry completed the second longest space walk in shuttle history at 5:51 a.m. Central time Sunday, accomplishing all of the objectives mapped out for their excursion as well as a couple of unscheduled activities.

Today's space walk - the 45th in space shuttle history and the fourth of the International Space Station era - began at 9:56 p.m. Central time Saturday night, and concluded at 5:51 a.m. Sunday, lasting 7 hours, 55 minutes. The longest spacewalk was conducted by STS-49 Astronauts Rick Heib, Pierre Thuot and Tom Akers, which lasted 8 hours, 29 minutes on May 13 and 14, 1992.

During today's spacewalk, Jernigan and Barry transferred and installed two cranes from the shuttle's payload bay to locations on the outside of the station. They also installed two new portable foot restraints that will fit both American and Russian space boots, and attached three bags filled with tools and handrails that will be used during future assembly operations. Once those primary tasks were accomplished, Jernigan and Barry installed an insulating cover on a trunnion pin on the Unity module, documented painted surfaces on both the Unity and Zarya modules, and inspected one of two early communications system antennas on the Unity.

Throughout the space walk, Jernigan and Barry were assisted by their crew mates as Mission Specialist Ellen Ochoa operated the Shuttle's robot arm to maneuver Jernigan around Discovery's cargo bay, and Canadian Space Agency astronaut Julie Payette acted as "choreographer" of the spacewalk from Discovery's flight deck.

The excursion raised the total number of International Space Station era space walks to four, with the total time spent on construction activities now standing at 29 hours, 17 minutes. STS-88 Astronauts Jerry Ross and Jim Newman spent 21 hours, 22 minutes outside Endeavour during their three space walks.

The crew is scheduled to begin its sleep shift at 8:50 a.m. today and will receive a wake-up call from Mission Control at 4:50 p.m. The crew is scheduled to open a series of hatches connecting Discovery with the International Space Station and enter the new facility about 7:35 p.m. Central time to begin the transfer of equipment and logistical supplies from the Shuttle to the station. They'll also conduct repairs on battery charging systems in Zarya and a balky communications system in Unity.

On Sunday, May 30, 1999, 7:30 p.m. CDT, STS-96 MCC Status Report # 09 reports:

Discovery's astronauts are preparing to enter the International Space Station for the first time in six months following a rousing wakeup call from Mission Control in honor of Memorial Day.

The crew is scheduled to climb inside the Unity and Zarya modules mid evening to begin transferring nearly 3,000 pounds of equipment to be used by future crews on the ISS. In and around transferring operations, some maintenance tasks will be conducted - one inside Zarya and one inside Unity.

After wakeup to the notes of the US Coast Guard Band playing "Morning Colors," the crew reviewed procedures for the entry activities with both Mission Control Centers in Houston and Moscow.

Canadian astronaut Julie Payette and Russian cosmonaut Valery Tokarev will travel to the Zarya module and begin maintenance activities on the storage batteries located under the floor board. The Zarya has six such batteries, which have been experiencing a slight loss in charging capacity during recharge. Each battery has three "charge controllers" for a total of 18 that will be changed during this procedure. Later, Mission Specialist Dan Barry and Tokarev will install some acoustic insulation around some fans inside Zarya to reduce noise levels in the module.

Meanwhile, in the Unity module, Mission Specialist Tammy Jernigan and Pilot Rick Husband will install shelving in 2 soft stowage racks. The racks themselves were launched with Unity in December 1998 for use in supporting logistics transfer activities. Later, Husband and Barry will conduct troubleshooting and maintenance activities on the Early Communications System.

In the afternoon, the third major task of the flight begins - transfer of logistics items. Ochoa will coordinate this activity and will direct and document all transfers leaving the shuttle. On the ISS side, Payette will receive the items and, along with Tokarev, will document and stow items aboard the ISS. Discovery's astronauts are scheduled to transfer almost 2,900 pounds of supplies and equipment during the next three days.

The next STS-96 mission status report will be issued at approximately 7 a.m. Central time or as events warrant.

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