../ dmsp_15_ephemeris_20220902.txt 22-Jun-2023 00:52 109779 dmsp_16_ephemeris_20220902.txt 22-Jun-2023 00:52 109676 dmsp_17_ephemeris_20220902.txt 22-Jun-2023 00:52 109580 dmsp_18_ephemeris_20220902.txt 22-Jun-2023 00:52 109631