../ dmsp_15_ephemeris_20220314.txt 22-Jun-2023 16:31 108263 dmsp_16_ephemeris_20220314.txt 22-Jun-2023 16:31 108143 dmsp_17_ephemeris_20220314.txt 22-Jun-2023 16:31 108152 dmsp_18_ephemeris_20220314.txt 22-Jun-2023 16:31 108120