../ dmsp_15_ephemeris_20190805.txt 22-Jun-2023 00:41 109580 dmsp_16_ephemeris_20190805.txt 22-Jun-2023 00:41 109632 dmsp_17_ephemeris_20190805.txt 22-Jun-2023 00:41 109624 dmsp_18_ephemeris_20190805.txt 22-Jun-2023 00:41 109649