../ dmsp_15_ephemeris_20150429.txt 22-Jun-2023 16:16 109654 dmsp_16_ephemeris_20150429.txt 22-Jun-2023 16:16 109481 dmsp_17_ephemeris_20150429.txt 22-Jun-2023 16:16 109722 dmsp_18_ephemeris_20150429.txt 22-Jun-2023 16:16 109769 dmsp_19_ephemeris_20150429.txt 22-Jun-2023 16:16 109789