../ dmsp_15_ephemeris_20211222.txt 22-Jun-2023 17:05 109330 dmsp_16_ephemeris_20211222.txt 22-Jun-2023 17:05 109270 dmsp_17_ephemeris_20211222.txt 22-Jun-2023 17:05 109301 dmsp_18_ephemeris_20211222.txt 22-Jun-2023 17:05 109340