../ dmsp_15_ephemeris_20200123.txt 22-Jun-2023 00:43 108041 dmsp_16_ephemeris_20200123.txt 22-Jun-2023 00:43 107991 dmsp_17_ephemeris_20200123.txt 22-Jun-2023 00:43 108000 dmsp_18_ephemeris_20200123.txt 22-Jun-2023 00:43 107859