PDS_VERSION_ID = PDS3 RECORD_TYPE = "STREAM" ^ASCII_DOCUMENT = "SOLAR_EPHEMERIS.ASC" MISSION_NAME = "APOLLO 14" INSTRUMENT_HOST_NAME = "APOLLO 14 LUNAR SURFACE EXPERIMENTS PACKAGE" INSTRUMENT_NAME = "APOLLO 14 COLD CATHODE ION GAGE EXPERIMENT" DATA_SET_ID = "A14A-L-CCIG-3-ATMOS-DENSITY-PLOTS-V1.0" START_TIME = "N/A" STOP_TIME = "N/A" SPACECRAFT_CLOCK_START_COUNT = "N/A" SPACECRAFT_CLOCK_STOP_COUNT = "N/A" TARGET_NAME = "MOON" OBJECT = ASCII_DOCUMENT DOCUMENT_NAME = "APOLLO 14 CCIG SITE - SOLAR EPHEMERIS" PUBLICATION_DATE = 2008-06-21 DOCUMENT_TOPIC_TYPE = "DISPLAY IMAGE" INTERCHANGE_FORMAT = "ASCII" DOCUMENT_FORMAT = "TEXT" DESCRIPTION = "The Solar Ephemeris file shows the local position of the Sun at the site of the Apollo 14 CCIG instrument (342.52 East Longitude, 3.64 South Latitude). The ephemeris data were calculated at hourly intervals and start at 1971-02-01T00:00:00.000 and stop at 1973-12-31T00:00:00.000 Universal Time Coordinated (UTC). The columns are: - Date (yyy-mmm-dd) in UTC, - Time in hours:minutes in UTC, - Apparent solar azimuth angle in degrees (north=0, east=90), - Apparent solar elevation angle in degrees with respect to a plane perpendicular to the local zenith where a negative sign means the Sun is below the plane horizon and 90 degrees is vertical, - Change in solar azimuth with time multiplied by the cosine of the elevation in arcseconds per minute, and - Change in solar elevation with time in arcseconds per minute. Local topography is not taken into account, typically the local sunrise and sunset will be offset by a few hours from the zero solar elevation values because of surrounding landforms. The table was generated by the Horizons On-Line Ephemeris System at the Jet Propulsion Laboratory (http://ssd.jpl.nasa.gov/)." END_OBJECT = ASCII_DOCUMENT END