../ dmsp_15_ephemeris_20181018.txt 22-Jun-2023 16:29 109508 dmsp_16_ephemeris_20181018.txt 22-Jun-2023 16:29 109614 dmsp_17_ephemeris_20181018.txt 22-Jun-2023 16:29 109580 dmsp_18_ephemeris_20181018.txt 22-Jun-2023 16:29 109574