../ dmsp_15_ephemeris_20130924.txt 22-Jun-2023 00:23 109625 dmsp_16_ephemeris_20130924.txt 22-Jun-2023 00:23 109579 dmsp_17_ephemeris_20130924.txt 22-Jun-2023 00:23 109711 dmsp_18_ephemeris_20130924.txt 22-Jun-2023 00:23 109481