../ dmsp_15_ephemeris_20220604.txt 22-Jun-2023 00:51 109636 dmsp_16_ephemeris_20220604.txt 22-Jun-2023 00:51 109665 dmsp_17_ephemeris_20220604.txt 22-Jun-2023 00:51 109427 dmsp_18_ephemeris_20220604.txt 22-Jun-2023 00:51 109534