../ dmsp_15_ephemeris_20110830.txt 22-Jun-2023 00:18 109627 dmsp_16_ephemeris_20110830.txt 22-Jun-2023 00:18 109714 dmsp_17_ephemeris_20110830.txt 22-Jun-2023 00:18 109727 dmsp_18_ephemeris_20110830.txt 22-Jun-2023 00:18 109741