../ dmsp_15_ephemeris_20221206.txt 22-Jun-2023 16:41 109318 dmsp_16_ephemeris_20221206.txt 22-Jun-2023 16:41 109317 dmsp_17_ephemeris_20221206.txt 22-Jun-2023 16:41 109329 dmsp_18_ephemeris_20221206.txt 22-Jun-2023 16:41 109298