../ dmsp_15_ephemeris_20211123.txt 22-Jun-2023 17:04 109362 dmsp_16_ephemeris_20211123.txt 22-Jun-2023 17:04 109427 dmsp_17_ephemeris_20211123.txt 22-Jun-2023 17:04 109370 dmsp_18_ephemeris_20211123.txt 22-Jun-2023 17:04 109324