../ dmsp_15_ephemeris_20220925.txt 22-Jun-2023 00:53 109613 dmsp_16_ephemeris_20220925.txt 22-Jun-2023 00:53 109696 dmsp_17_ephemeris_20220925.txt 22-Jun-2023 00:53 109619 dmsp_18_ephemeris_20220925.txt 22-Jun-2023 00:53 109519