../ dmsp_15_ephemeris_20221213.txt 22-Jun-2023 00:54 109327 dmsp_16_ephemeris_20221213.txt 22-Jun-2023 00:54 109296 dmsp_17_ephemeris_20221213.txt 22-Jun-2023 00:54 109331 dmsp_18_ephemeris_20221213.txt 22-Jun-2023 00:54 109349