../ dmsp_15_ephemeris_20230306.txt 22-Jun-2023 00:55 108203 dmsp_16_ephemeris_20230306.txt 22-Jun-2023 00:55 108136 dmsp_17_ephemeris_20230306.txt 22-Jun-2023 00:55 108100 dmsp_18_ephemeris_20230306.txt 22-Jun-2023 00:55 108135