posted 08-31-2015 02:40 PM            

• as13-58-8458
  
• as13-58-8464
  
• s70-35703
  
• as13-59-8500a

posted 09-07-2015 10:52 PM               

This quote from the Apollo 13 Cryogenic Oxygen Tank 2 Anomaly Report 1 (MSC-02545) states the problem.

The average distance from the Hasselblad cameras to the service module for the onboard photography was about 410 feet for magazine R and about 880 feet for magazine N, resulting in an image scale of 1:1500 and 1:1077, respectively. Of the frames showing the service module, orientation was such that the majority do not show bay 4, and at no time are the sun angle and camera view simultaneously directed into bay 4.

In an effort to draw detail out of the high density in the area of the normal location of the cryogenic oxygen tank 2 in bay 4, two black and white frames (AS13-59-8500 and -8501) and three color frames (AS13-58-8462, -8464, and -8465) were subjected to photographic processing enhancement for specific details. These same frames were also subjected to electronic scanning with an image digital construction technique similar to that used on the Surveyor lunar surface photography.

Assisting the Photographic Technology Laboratory at the Manned Spacecraft Center were the Jet Propulsion Laboratory, McDonnell-Douglas Corporation, LogEtronics Incorporated, Ciba Corporation, and Data Corporation with their specialized techniques, facilities, and experienced personnel.

After exhausting all means of enhancement from the masters, the original film was taken to Data Corporation, Dayton, Ohio, to be scanned with their high-intensity, 1-micron probe and digitally reconstructed to bring out the detail for analysis.

The investigation team also tried to "reverse engineer" the images by constructing a model and arranging the interior in such a way that when a photo was taken using similar lighting and effects displayed in the original image, as shown below, a comparison could be made to see how well the original and the "constructed" image compared. If they were similar it could be deduced that the model represented the actual condition of the service module after the failure.

posted 09-08-2015 04:28 AM            

quote:

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Originally posted by Headshot:
Did the tank explosion and subsequent rupture/ejection of the SM's panel permanently knock out the SM high gain antenna?

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posted 09-08-2015 09:54 PM               

The service module first appeared in the docking window at a distance of about 80 feet. The entire bay 4 outer panel was missing, and torn Mylar insulation was seen protruding from the bay. Because of the brilliant reflections from the Mylar, it was difficult to see or photograph any details inside the bay. Initial photography of the service module was conducted through the docking window using the command module 70-mm camera and an 80-mm lens. This camera, the 16-mm sequence camera with a 75-mm lens, and the command module electric still camera with a 250-mm lens were then operated while viewing through the right-hand window. Camera settings were made according to ground instructions. No magazine designation was made by the ground for the sequence camera, so the surface color film was used.

...using the color magazine and then from the B&W magazine, AS13-59-8501 was the second image from that camera.

posted 03-21-2019 10:43 PM               

After service module sep, at GET 138 05,the following exchanges occurred between Fred and Joe,

LMP - Yes,it looks like it got to the SPS bell, too, Houston

CC - Think it zinged the SPS engine bell, huh?

LMP - That's the way it looks; unless that's just a dark brown streak. It's really a mess.

...

LMP - Okay, Joe, I'm looking down the SPS bell, and it looks - looks okay on the inside; maybe just a streak.

Combustion or vaporization of the Mylar or Kapton might account for the discoloration of the SM engine nozzle as onserved and photographed by the crew

posted 01-18-2020 02:28 AM            

• the SM can be seen at 0:40
  
• the damaged Bay 4 can be seen at 1:05