../ dmsp_15_ephemeris_20200612.txt 22-Jun-2023 00:44 109532 dmsp_16_ephemeris_20200612.txt 22-Jun-2023 00:44 109502 dmsp_17_ephemeris_20200612.txt 22-Jun-2023 00:44 109654 dmsp_18_ephemeris_20200612.txt 22-Jun-2023 00:44 109581