../ dmsp_15_ephemeris_20200507.txt 22-Jun-2023 00:43 109587 dmsp_16_ephemeris_20200507.txt 22-Jun-2023 00:43 109581 dmsp_17_ephemeris_20200507.txt 22-Jun-2023 00:43 109704 dmsp_18_ephemeris_20200507.txt 22-Jun-2023 00:43 109595