../ dmsp_15_ephemeris_20220911.txt 22-Jun-2023 00:52 109668 dmsp_16_ephemeris_20220911.txt 22-Jun-2023 00:52 109675 dmsp_17_ephemeris_20220911.txt 22-Jun-2023 00:52 109645 dmsp_18_ephemeris_20220911.txt 22-Jun-2023 00:52 109553