../ dmsp_15_ephemeris_20200306.txt 22-Jun-2023 00:43 108164 dmsp_16_ephemeris_20200306.txt 22-Jun-2023 00:43 108224 dmsp_17_ephemeris_20200306.txt 22-Jun-2023 00:43 108179 dmsp_18_ephemeris_20200306.txt 22-Jun-2023 00:43 108193