../ dmsp_15_ephemeris_20210215.txt 22-Jun-2023 16:28 108118 dmsp_16_ephemeris_20210215.txt 22-Jun-2023 16:28 108057 dmsp_17_ephemeris_20210215.txt 22-Jun-2023 16:28 108066 dmsp_18_ephemeris_20210215.txt 22-Jun-2023 16:28 108055