../ dmsp_15_ephemeris_20220721.txt 22-Jun-2023 16:39 109546 dmsp_16_ephemeris_20220721.txt 22-Jun-2023 16:39 109524 dmsp_17_ephemeris_20220721.txt 22-Jun-2023 16:39 109603 dmsp_18_ephemeris_20220721.txt 22-Jun-2023 16:39 109545