../ dmsp_15_ephemeris_20170606.txt 22-Jun-2023 16:49 109487 dmsp_16_ephemeris_20170606.txt 22-Jun-2023 16:49 109524 dmsp_17_ephemeris_20170606.txt 22-Jun-2023 16:49 109707 dmsp_18_ephemeris_20170606.txt 22-Jun-2023 16:49 109736