../ dmsp_15_ephemeris_20190729.txt 22-Jun-2023 16:31 109549 dmsp_16_ephemeris_20190729.txt 22-Jun-2023 16:31 109508 dmsp_17_ephemeris_20190729.txt 22-Jun-2023 16:31 109616 dmsp_18_ephemeris_20190729.txt 22-Jun-2023 16:31 109581