../ dmsp_15_ephemeris_20200217.txt 22-Jun-2023 00:43 108226 dmsp_16_ephemeris_20200217.txt 22-Jun-2023 00:43 108089 dmsp_17_ephemeris_20200217.txt 22-Jun-2023 00:43 108030 dmsp_18_ephemeris_20200217.txt 22-Jun-2023 00:43 108103