../ dmsp_15_ephemeris_20130714.txt 22-Jun-2023 00:22 109499 dmsp_16_ephemeris_20130714.txt 22-Jun-2023 00:22 109616 dmsp_17_ephemeris_20130714.txt 22-Jun-2023 00:22 109691 dmsp_18_ephemeris_20130714.txt 22-Jun-2023 00:22 109669