../ dmsp_15_ephemeris_20171023.txt 22-Jun-2023 16:50 109564 dmsp_16_ephemeris_20171023.txt 22-Jun-2023 16:50 109597 dmsp_17_ephemeris_20171023.txt 22-Jun-2023 16:50 109499 dmsp_18_ephemeris_20171023.txt 22-Jun-2023 16:50 109430