../ dmsp_15_ephemeris_20221017.txt 22-Jun-2023 00:53 109501 dmsp_16_ephemeris_20221017.txt 22-Jun-2023 00:53 109493 dmsp_17_ephemeris_20221017.txt 22-Jun-2023 00:53 109528 dmsp_18_ephemeris_20221017.txt 22-Jun-2023 00:53 109502