Heat Flow Experiment

The Heat Flow Experiment was a United States NASA lunar science experiment that aimed to measure the rate of heat loss from the surface of the Moon. Four experiments were carried out on board Apollo missions. Two experiments were successfully deployed as part of Apollo 15 and Apollo 17. The instrument on Apollo 16 was deployed but the cable from it to the ALSEP central station was broken and the experiment was rendered inoperable. A heat flow experiment was carried onboard Apollo 13 but the mission was aborted in-flight and the instrument never reached the surface.

MainWikipediaGalleryBibliographyTableSearch

Wikimedia, Wikidata
HFE; S-037; S037
mass 5.5 kilogram, 
space instrument, 
United States, Ashkenaz, Calvinist Republic of Ghent, Chinland, Democratic Republic of the Congo, Havilah, Kingdom of Martabam-hongsawatoi, Kingdom of Wolaita, Persia, Sikh Confederacy, Tarshish, Dong Fang Hong 2, Ekran, Republic of Haiti, 

​

Location: KML, Cluster Map, Maps,

Frameless

AS17-134-20497 (21493139929) (cropped)

ALSEP AS17-134-20497

AS17-134-20493 (21653904746)

AS17-134-20492 (21492134708)

AS17-134-20495 (21653901356)

AS17-136-20712 (21713226001)

AS17-134-20496 (21492034040)

AS17-136-20713 (21081274684)

AS17-136-20695 (21703989075)

AS17-136-20711 (21516161938)

• Heat Flow Experiment - ALSEP technical memorandum, English, 1966, online
• Test and evaluation of the heat flow experiment - document dealing with ALSEP, English, 1967, online
• HFE SN-05 calibration constants - document dealing with ALSEP, English, 1969, online
• Results of feasibility tests performed to determine the handling and mating aspects of the HFE - Astronaut Connector - document dealing with ALSEP, English, 1970, online
• Interface control specification for Heat Flow Experiment Subsystem for Apollo Lunar Surface Experiments Package. - document dealing with ALSEP, English, 1971, online
• HFE power off during lunar night - document dealing with ALSEP, English, 1971, online
• ALSEP Array A2 description including the Heat Flow Experiment - document dealing with ALSEP, English, 1970, online
• Examination of the Long-Term Subsurface Warming Observed at the Apollo 15 and 17 Sites Utilizing the Newly Restored Heat Flow Experiment Data From 1975 to 1977 - journal article, Q1860, 2018, online
• Heat Flow Experiment - Bendix document for ALSEP, English, 1966, online
• A2 HFE DH15 anomaly investigation - document dealing with ALSEP, English, 1971, online
• Bi-reflector HFE electronics package thermal design - document dealing with ALSEP, English, 1970, online
• ALSEP reliability mathematical model and prediction addendum 1 HFE / Revision no. G-1 - document dealing with ALSEP, English, 1971, online
• Heat Flow Experiment engineering model 1 & 2 testing sequence - document dealing with ALSEP, English, 1967, online
• Quarterly Progress Report No. 1 Reporting Period July-Sept. 1969 Work performed under NAS 9-6037 Development of a Lunar Heat Flow Experiment for ALSEP - document dealing with ALSEP, English, 1969, online
• HFE subpallet dynamic analysis - document dealing with ALSEP, English, 1970, online

Type	Subtype	Date	Description	Notes	Source
commons	image		AS17-134-20497 (21493139929) (cropped)		Commons
commons	image		ALSEP AS17-134-20497		Commons
commons	image		AS17-134-20493 (21653904746)		Commons
commons	image		AS17-134-20492 (21492134708)		Commons
commons	image		AS17-134-20495 (21653901356)		Commons
commons	image		AS17-136-20712 (21713226001)		Commons
commons	image		AS17-134-20496 (21492034040)		Commons
commons	image		AS17-136-20713 (21081274684)		Commons
commons	image		AS17-136-20695 (21703989075)		Commons
commons	image		AS17-136-20711 (21516161938)		Commons