../ dmsp_15_ephemeris_20220530.txt 22-Jun-2023 00:51 109568 dmsp_16_ephemeris_20220530.txt 22-Jun-2023 00:51 109642 dmsp_17_ephemeris_20220530.txt 22-Jun-2023 00:51 109686 dmsp_18_ephemeris_20220530.txt 22-Jun-2023 00:51 109488