../ dmsp_15_ephemeris_20200301.txt 22-Jun-2023 00:43 108211 dmsp_16_ephemeris_20200301.txt 22-Jun-2023 00:43 108179 dmsp_17_ephemeris_20200301.txt 22-Jun-2023 00:43 108103 dmsp_18_ephemeris_20200301.txt 22-Jun-2023 00:43 108189