../ dmsp_15_ephemeris_20210213.txt 22-Jun-2023 16:28 108163 dmsp_16_ephemeris_20210213.txt 22-Jun-2023 16:28 108135 dmsp_17_ephemeris_20210213.txt 22-Jun-2023 16:28 108100 dmsp_18_ephemeris_20210213.txt 22-Jun-2023 16:28 108139