../ dmsp_15_ephemeris_20181025.txt 22-Jun-2023 16:29 109528 dmsp_16_ephemeris_20181025.txt 22-Jun-2023 16:29 109525 dmsp_17_ephemeris_20181025.txt 22-Jun-2023 16:29 109478 dmsp_18_ephemeris_20181025.txt 22-Jun-2023 16:29 109502