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Home > Multimedia > SM4 Mission > Flight Day 4

EVA #1 with John Grunsfeld and Drew Feustal.
Tasks - Replaced the Wide Field and Planetary Camera 2 (WFPC2) with Wide Field Camera 3 (WFC3), after some difficulty removing the A-latch bolt; swapped out the Science Instrument Command and Data Handling (SIC&DH) Unit; installed a soft capture mechanism (SCM); lubricated three of the shroud doors; and install one of the three latch-over center kits (LOCK). They had some difficulty with the other two, installing a latch repair on one of the bolts, and partially installed a second LOCK. The purpose of the LOCKs was to allow faster access to the instruments during flight day 6's spacewalk (EVA #3).
EVA start: 12:52, EVA finish: 20:12, Duration: 7 hours 20 minutes

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Flight Day 4 Photo Images

STS-125 spacewalkers remove the WFPC2 from the HST Larger Image		Perched on the end of the Canadian-built remote manipulator system, Andrew Feustel performs work on the HST as the first of five spacewalks kicks off a week's work Larger Image	Andrew Feustel performs work on the HST Larger Image
Andrew Feustel performs work on the HST Larger Image	Andrew Feustel performs work on the HST Larger Image	John Grunsfeld (left) and Andrew Feustel made up the May 14 team of space walkers assigned to begin the final work on HST Larger Image	What appears to be multiple astronauts, because of the shiny mirror-like surface of the HST, is actually only two - John Grunsfeld (left) and Andrew Feustel. Larger Image
John Grunsfeld performs work on the HST Larger Image	John Grunsfeld performs work on the HST Larger Image	John Grunsfeld performs work on the HST Larger Image	John Grunsfeld (bottom) and Andrew Feustel share work on HST Larger Image
Andrew Feustel performs work on the HST Larger Image	John Grunsfeld performs work on the HST Larger Image	Close-up of John Grunsfeld performing a spacewalk Larger Image	Close-up of John Grunsfeld performing a spacewalk Larger Image
Close-up of John Grunsfeld performing a spacewalk Larger Image	Andrew Feustel wearing the liquid cooling and ventilation garment that complements the Extravehicular Mobility Unit (EMU) spacesuit prior to the mission's first spacewalk Larger Image	Mike Massimino (left) and Andrew Feustel look over a procedures checklist on the middeck prior to the mission's first spacewalk Larger Image	Andrew Feustel wearing the liquid cooling and ventilation garment that complements the EMU spacesuit prior to the mission's first spacewalk Larger Image
Gregory C. Johnson makes notes on a checklist on the middeck Larger Image	Gregory C. Johnson uses a still camera at an overhead window on the aft flight deck Larger Image	Mike Massimino looks over procedures checklists on the aft flight deck Larger Image	Megan McArthur looks through a window while working controls on the aft flight deck Larger Image

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EVA #1 Tasks

Drew Feustal contemplates a stuck bolt Larger Image	John Grunsfeld hangs on the side of Hubble while waiting for word from Mission Control regarding the stuck bolt Larger Image	John Grunsfeld reflected in Hubble views WFPC2 with attached Handle Larger Image	Finally the stuck bolt is lossened Larger Image
Drew Feustal starts to pull to remove WFPC2 Larger Image	WFPC2 is removed inch by inch Larger Image	WFPC2 is removed inch by inch Larger Image	WFPC2 almost out Larger Image
WFPC2 clears the bay cavity Larger Image	John Grunsfeld looks inside the WFC cavity Larger Image	Drew Feustal riding the robotic arm moves WFPC2 to the side Larger Image	Drew Feustal riding the robotic arm moves WFPC2 to the side Larger Image
Drew Feustal parks WFPC2 on the side of Atlantis' bay Larger Image	WFPC2, the Camera that saved Hubble, is parked on the side of Atlantis' bay while the astronauts install WFC3 Larger Image
Drew Feustal (on robotic arm) with assistance from John Grunsfeld begins WFC3 insertion Larger Image	WFC3 being inserted Larger Image	WFC3, just a little more Larger Image	WFC3 is installed Larger Image
< John Grunsfeld (top) and Drew Feustal complete installation of WFC3 Larger Image	WFPC2 is placed in the SIPE for the return trip home Larger Image	John Grunsfeld and Drew Feustal secure WFPC2 in the SIPE Larger Image	John Grunsfeld and Drew Feustal Clean up following the WFC swap and prepare for the next task Larger Image
John Grunsfeld using the pistol grip tool (PGT) prepares to release the bolts holding the Bay 10 doors Larger Image	In the mean time, Drew Feustal removes the replacement SIC&DH from the MULE Larger Image	John Grunsfeld opens the Bay 10 door revealing the SIC&DH Larger Image	John Grunsfeld lubracates door latches. Visible on his wrist is the task flip cards, similar to what NFL quarterback use on the field to call plays Larger Image
John Grunsfeld installs a LOCK for faster opening and closing of the telescope doors (-V2) during the 3rd spacewalk Larger Image	With all tasks complete, John Grunsfeld and Drew Feustal prepare to head back to the airlock Larger Image

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Flight Day 4 Graphic Images - None Available

Flight Day 4 Videos

Views of the Hubble Space Telescope QuickTime 1.23MB 1:10min	The astronuats begin the first spacewalk of STS-125 QuickTime 1.52MB 1:26min	The first STS-125 spacewalk continued QuickTime 2.01MB 1:54min	A view of the Hubble Space Telescope with the flight day four wakeup call audio QuickTime 1.89MB 1:48min
STS-125 HD Flight Day 4 Highlights YouTube videos are no longer available.	STS-125 EVA #1 YouTube videos are no longer available.	STOCC Update YouTube videos are no longer available.	Mission Status Briefing YouTube videos are no longer available.
Behind the Scenes #4-Relief in the Control Room + View 4:19	Inside Hubble's Control Room during a space walk MP4 13MB 1.2min