../ dmsp_15_ephemeris_20200622.txt 22-Jun-2023 00:44 109551 dmsp_16_ephemeris_20200622.txt 22-Jun-2023 00:44 109494 dmsp_17_ephemeris_20200622.txt 22-Jun-2023 00:44 109724 dmsp_18_ephemeris_20200622.txt 22-Jun-2023 00:44 109607