../ dmsp_15_ephemeris_20130514.txt 22-Jun-2023 00:22 109409 dmsp_16_ephemeris_20130514.txt 22-Jun-2023 00:22 109581 dmsp_17_ephemeris_20130514.txt 22-Jun-2023 00:22 109757 dmsp_18_ephemeris_20130514.txt 22-Jun-2023 00:22 109628