../ dmsp_15_ephemeris_20200315.txt 22-Jun-2023 00:43 108132 dmsp_16_ephemeris_20200315.txt 22-Jun-2023 00:43 108131 dmsp_17_ephemeris_20200315.txt 22-Jun-2023 00:43 108185 dmsp_18_ephemeris_20200315.txt 22-Jun-2023 00:43 108158