../ dmsp_15_ephemeris_20220602.txt 22-Jun-2023 16:38 109516 dmsp_16_ephemeris_20220602.txt 22-Jun-2023 16:38 109635 dmsp_17_ephemeris_20220602.txt 22-Jun-2023 16:38 109559 dmsp_18_ephemeris_20220602.txt 22-Jun-2023 16:38 109529