../ dmsp_15_ephemeris_20220211.txt 22-Jun-2023 00:50 108111 dmsp_16_ephemeris_20220211.txt 22-Jun-2023 00:50 108107 dmsp_17_ephemeris_20220211.txt 22-Jun-2023 00:50 107947 dmsp_18_ephemeris_20220211.txt 22-Jun-2023 00:50 108152