../ dmsp_15_ephemeris_20120228.txt 22-Jun-2023 16:31 108163 dmsp_16_ephemeris_20120228.txt 22-Jun-2023 16:31 108051 dmsp_17_ephemeris_20120228.txt 22-Jun-2023 16:31 108087 dmsp_18_ephemeris_20120228.txt 22-Jun-2023 16:31 108043