urn:nasa:pds:a14ccig_atmos_density_plots:document:a14_solar_ephemeris 1.0 1.24.0.0 Product_Document 2025 Apollo 14 CCIG Site - Solar Ephemeris 2025-07-09 1.0 Initial version. Apollo 14 Mission urn:nasa:pds:context:investigation:mission.apollo_14 document_to_investigation The Apollo 14 Lunar Surface Experiments Package Host urn:nasa:pds:context:instrument_host:spacecraft.a14a is_instrument_host Apollo 14 Lunar Surface Experiments Package Cold Cathode Ion Gage Experiment Instrument urn:nasa:pds:context:instrument:ccig.a14a is_instrument Moon Satellite urn:nasa:pds:context:target:satellite.earth.moon document_to_target Apollo 14 CCIG Site - Solar Ephemeris 2008-06-21 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/). Apollo 14 CCIG Site - Solar Ephemeris English 1 a14_solar_ephemeris.txt 7-Bit ASCII Text