../ dmsp_15_ephemeris_20190705.txt 22-Jun-2023 16:56 109514 dmsp_16_ephemeris_20190705.txt 22-Jun-2023 16:56 109576 dmsp_17_ephemeris_20190705.txt 22-Jun-2023 16:56 109473 dmsp_18_ephemeris_20190705.txt 22-Jun-2023 16:56 109491