../ dmsp_15_ephemeris_20230110.txt 22-Jun-2023 00:54 107906 dmsp_16_ephemeris_20230110.txt 22-Jun-2023 00:54 107922 dmsp_17_ephemeris_20230110.txt 22-Jun-2023 00:54 107872 dmsp_18_ephemeris_20230110.txt 22-Jun-2023 00:54 107938