../ dmsp_15_ephemeris_20120120.txt 22-Jun-2023 00:19 108006 dmsp_16_ephemeris_20120120.txt 22-Jun-2023 00:19 107974 dmsp_17_ephemeris_20120120.txt 22-Jun-2023 00:19 107857 dmsp_18_ephemeris_20120120.txt 22-Jun-2023 00:19 107955