../ dmsp_15_ephemeris_20150520.txt 22-Jun-2023 16:16 109573 dmsp_16_ephemeris_20150520.txt 22-Jun-2023 16:16 109607 dmsp_17_ephemeris_20150520.txt 22-Jun-2023 16:16 109732 dmsp_18_ephemeris_20150520.txt 22-Jun-2023 16:16 109552 dmsp_19_ephemeris_20150520.txt 22-Jun-2023 16:16 109629