../ dmsp_15_ephemeris_20211126.txt 22-Jun-2023 16:30 109479 dmsp_16_ephemeris_20211126.txt 22-Jun-2023 16:30 109365 dmsp_17_ephemeris_20211126.txt 22-Jun-2023 16:30 109400 dmsp_18_ephemeris_20211126.txt 22-Jun-2023 16:30 109419