../ dmsp_15_ephemeris_20221129.txt 22-Jun-2023 00:53 109371 dmsp_16_ephemeris_20221129.txt 22-Jun-2023 00:53 109420 dmsp_17_ephemeris_20221129.txt 22-Jun-2023 00:53 109408 dmsp_18_ephemeris_20221129.txt 22-Jun-2023 00:53 109316