../ dmsp_15_ephemeris_20150506.txt 22-Jun-2023 16:16 109448 dmsp_16_ephemeris_20150506.txt 22-Jun-2023 16:16 109652 dmsp_17_ephemeris_20150506.txt 22-Jun-2023 16:16 109713 dmsp_18_ephemeris_20150506.txt 22-Jun-2023 16:16 109607 dmsp_19_ephemeris_20150506.txt 22-Jun-2023 16:16 109704