../ dmsp_15_ephemeris_20110722.txt 22-Jun-2023 16:11 109582 dmsp_16_ephemeris_20110722.txt 22-Jun-2023 16:11 109602 dmsp_17_ephemeris_20110722.txt 22-Jun-2023 16:11 109678 dmsp_18_ephemeris_20110722.txt 22-Jun-2023 16:11 109801