../ dmsp_15_ephemeris_20220118.txt 22-Jun-2023 00:49 108081 dmsp_16_ephemeris_20220118.txt 22-Jun-2023 00:49 107975 dmsp_17_ephemeris_20220118.txt 22-Jun-2023 00:49 107969 dmsp_18_ephemeris_20220118.txt 22-Jun-2023 00:49 107946