../ dmsp_15_ephemeris_20200819.txt 22-Jun-2023 17:00 109631 dmsp_16_ephemeris_20200819.txt 22-Jun-2023 17:00 109561 dmsp_17_ephemeris_20200819.txt 22-Jun-2023 17:00 109774 dmsp_18_ephemeris_20200819.txt 22-Jun-2023 17:00 109631