../ dmsp_15_ephemeris_20190215.txt 22-Jun-2023 00:39 108079 dmsp_16_ephemeris_20190215.txt 22-Jun-2023 00:39 108135 dmsp_17_ephemeris_20190215.txt 22-Jun-2023 00:39 107989 dmsp_18_ephemeris_20190215.txt 22-Jun-2023 00:39 108078