../ dmsp_15_ephemeris_20221206.txt 22-Jun-2023 00:54 109318 dmsp_16_ephemeris_20221206.txt 22-Jun-2023 00:54 109317 dmsp_17_ephemeris_20221206.txt 22-Jun-2023 00:54 109329 dmsp_18_ephemeris_20221206.txt 22-Jun-2023 00:54 109298