../ dmsp_15_ephemeris_20150615.txt 22-Jun-2023 16:16 109413 dmsp_16_ephemeris_20150615.txt 22-Jun-2023 16:16 109479 dmsp_17_ephemeris_20150615.txt 22-Jun-2023 16:16 109650 dmsp_18_ephemeris_20150615.txt 22-Jun-2023 16:16 109509 dmsp_19_ephemeris_20150615.txt 22-Jun-2023 16:16 109522