국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Restoration and Reexamination of Apollo Lunar Dust Detector Data from Original Telemetry Files
저자	McBride, M. J.;; Williams, David R.;; Hills, H. Kent
Keyword	APOLLO LUNAR SURFACE EXPERIMENTS PACKAGE;; CALIBRATING;; DUST;; ELECTRIC POTENTIAL;; GEOPHYSICS;; GROUND STATIONS;; LUNAR DUST;; LUNAR SURFACE;; RADIATION DAMAGE;; SOLAR CELLS;; TEMPERATURE EFFECTS;; TEMPORAL RESOLUTION;; THERMAL RADIATION;; THERMISTORS
URL	http://hdl.handle.net/2060/20120009885
보고서번호	GSFC.CPR.00165.2012
발행년도	2012
출처	NTRS (NASA Technical Report Server)
ABSTRACT	We are recovering the original telemetry (Figure I) from the Apollo Dust, Thermal, Radiation Environment Monitor (DTREM) experiment, more commonly known as the Dust Detector, and producing full time resolution ࿖ second) data sets for release through the Planetary Data System (PDS). The primary objective of the experiment was to evaluate the effect of dust deposition, temperature, and radiation damage on solar cells on the lunar surface. The monitor was a small box consisting of three solar cells and thermistors mounted on the ALSEP (Apollo Lunar Surface Experiments Package) central station. The Dust Detector was carried on Apollo''s 11, 12, 14 and 15. The Apollo 11 DTREM was powered by solar cells and only operated for a few months as planned. The Apollo 12, 14, and 15 detectors operated for 5 to 7 years, returning data every 54 seconds, consisting of voltage outputs from the three solar cells and temperatures measured by the three thermistors. The telemetry was received at ground stations and held on the Apollo Housekeeping (known as "Word 33") tapes. made available to the National Space Science Data Center (NSSDC) by Yosio Nakamura (University of Texas Institute for Geophysics). We have converted selected parts of the telemetry into uncalibrated and calibrated output voltages and temperatures.