512 a
David Scott

The lunar surface magnetometer at the lunar-science station

Apollo 15, July 26 - August 7, 1971, EVA 1, 125:34:22 GET

Unreleased photograph, vintage chromogenic print on fiber-based Kodak paper, 20.3 x 25.4cm (8 x 10in), with “A Kodak Paper” watermarks on the verso, numbered “NASA AS15-86-11589” (NASA MSC) in red in top margin

512 b
David Scott

The Laser Ranging Retro Reflector (LRRR) at the lunar-science station

Apollo 15, July 26 - August 7, 1971, EVA 1, 125:33:21 GET

Unreleased photograph, vintage gelatin silver print on fiber-based paper, 20.3 x 25.4cm (8 x 10in), numbered “NASA AS15-85-11468” (NASA MSC) in black in top margin

512 c
David Scott

Portrait of the LM Falcon, James Irwin and the Lunar Rover in front of Mount Hadley Delta

Apollo 15, July 26 - August 7, 1971, EVA 1, 125:45:00 GET

Vintage chromogenic print on fiber-based Kodak paper, 20.3 x 25.4cm (8 x 10in), with “A Kodak Paper” watermarks on the verso, numbered “NASA AS15-86-11598” (NASA MSC) in blue in top margin
20.3 x 25.4cm (8 x 10in)

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Lot Essay

512 a
After taking pictures of the LRRR with Irwin’s camera, Scott used his own camera to document the final configuration of the various pieces of ALSEP equipment, notably the Lunar Surface Magnetometer (LSM).

125:34:22 Scott: Hey, Joe - I mean Jim - when you take your 3-footers (photographs), are you leaving the focus at 7 [feet]? [...]
125:34:33 Irwin: No, I’m coming down to 3(-foot focus).
125:34:36 Scott: Okay.
125:34:38 Irwin: (Probably looking at checklist LMP-26) No, I’m sorry, Dave. Leave it at 11, (f/)11 and 1/250th.
125:34:43 Scott: No, that’s not what I’m asking.
125:34:46 Irwin: Oh, I stop it down to 3 feet. Focus at 3 (feet).
125:34:51 Scott: Okay.

512 b
“Back to the landing site at about 4 hours 20 minutes into the EVA, the crew spent the remainder of the EVA deploying the scientific experiments at the lunar-science station (ALSEP site) located approximately 125 meters northwest of the LM” (from the ALSJ mission summary).

“The LRRR reflects laser pulses back to the telescopes on Earth used to illuminate it. By measuring the two-way travel time between the telescope and the LRRR, experiments can
determine the distance between the two to a few centimeters” (ALSJ caption for AS15-85-11468).

125:30:34 Scott: Okay, Jim; I got your camera. (Pause) How many pictures does that (ALSEP documentation) take?
125:30:42 Irwin: Takes about 20.
125:30:44 Scott: Okay. I’ve got (a frame count of) 115 on your camera. We’re okay. (Long Pause)
125:31:22 Allen (Misson Control): Dave, are you picking up Jim’s camera now?
125:31:27 Scott: I’ve got Jim’s camera. I’m going to take the pictures.

512 c
“There is a fundamental truth to our nature... Man must explore. And this is exploration at its greatest.”
David Scott (first words on the Moon at 119:55:45 GET)