../ dmsp_15_ephemeris_20210222.txt 22-Jun-2023 16:35 108089 dmsp_16_ephemeris_20210222.txt 22-Jun-2023 16:35 108122 dmsp_17_ephemeris_20210222.txt 22-Jun-2023 16:35 107995 dmsp_18_ephemeris_20210222.txt 22-Jun-2023 16:35 108070