../ dmsp_15_ephemeris_20200821.txt 22-Jun-2023 16:33 109673 dmsp_16_ephemeris_20200821.txt 22-Jun-2023 16:33 109466 dmsp_17_ephemeris_20200821.txt 22-Jun-2023 16:33 109670 dmsp_18_ephemeris_20200821.txt 22-Jun-2023 16:33 109595