Appendix D: Experiments

Could not be operated as planned because the solar airlock was blocked by the parasol sunshade. Operated EVA by 3d crew.
Component failure caused instrument to shut off after operating 110 of a planned 265 minutes.
Deployed through antisolar airlock and left between first and second manned missions. ’
Fore-and-aft scanning failed. After repair by 3d crew, fault was locked out and cross-track scanning restored, recovering 80% of data.
Short circuit in equipment prevented acquisition of telemetered data.
M512 was a multipurpose vacuum chamber with an electron beam generator, used for conducting the experiments that follow in the list.
M518 was an electric furnace attaching to M512, used in performing the experiments that follow in the list.
No special equipment required; experiment used data from other Skylab sensors.
Skylab’s x-ray detectors were not sufficiently sensitive to collect the data this experiment required.
Could not be performed. When Jupiter was in the best viewing position, the power crisis did not allow maneuvering to point at the target. An alternative target was below the detection limit of Skylab sensors.
Only partially completed; the water plants used in the experiment did not live long enough to make the planned observations. One successful observation was made.
Leakage of fluids from the experiment hardware led to inconclusive results.
Hardware failure negated this experiment.
Accomplished before and after flight with all crews.

SOURCE: Leland F. Belew and Ernst Stuhlinger, Skylab: A Guidebook (NASA EP-107, 1972), chap. 5.