../ dmsp_15_ephemeris_20210122.txt 22-Jun-2023 17:01 108032 dmsp_16_ephemeris_20210122.txt 22-Jun-2023 17:01 108037 dmsp_17_ephemeris_20210122.txt 22-Jun-2023 17:01 107810 dmsp_18_ephemeris_20210122.txt 22-Jun-2023 17:01 107995