../ dmsp_15_ephemeris_20190107.txt 22-Jun-2023 00:39 106576 dmsp_16_ephemeris_20190107.txt 22-Jun-2023 00:39 106570 dmsp_17_ephemeris_20190107.txt 22-Jun-2023 00:39 106449 dmsp_18_ephemeris_20190107.txt 22-Jun-2023 00:39 106443