../ dmsp_15_ephemeris_20220219.txt 22-Jun-2023 00:50 108154 dmsp_16_ephemeris_20220219.txt 22-Jun-2023 00:50 108102 dmsp_17_ephemeris_20220219.txt 22-Jun-2023 00:50 108053 dmsp_18_ephemeris_20220219.txt 22-Jun-2023 00:50 108119