../ dmsp_15_ephemeris_20220526.txt 22-Jun-2023 00:51 109599 dmsp_16_ephemeris_20220526.txt 22-Jun-2023 00:51 109532 dmsp_17_ephemeris_20220526.txt 22-Jun-2023 00:51 109515 dmsp_18_ephemeris_20220526.txt 22-Jun-2023 00:51 109598