../ dmsp_15_ephemeris_20190623.txt 22-Jun-2023 00:41 109482 dmsp_16_ephemeris_20190623.txt 22-Jun-2023 00:41 109591 dmsp_17_ephemeris_20190623.txt 22-Jun-2023 00:41 109583 dmsp_18_ephemeris_20190623.txt 22-Jun-2023 00:41 109390