../ dmsp_15_ephemeris_20220527.txt 22-Jun-2023 17:06 109606 dmsp_16_ephemeris_20220527.txt 22-Jun-2023 17:06 109576 dmsp_17_ephemeris_20220527.txt 22-Jun-2023 17:06 109425 dmsp_18_ephemeris_20220527.txt 22-Jun-2023 17:06 109509