../ dmsp_15_ephemeris_20230111.txt 22-Jun-2023 00:54 107902 dmsp_16_ephemeris_20230111.txt 22-Jun-2023 00:54 107853 dmsp_17_ephemeris_20230111.txt 22-Jun-2023 00:54 107799 dmsp_18_ephemeris_20230111.txt 22-Jun-2023 00:54 107988