../ dmsp_15_ephemeris_20151229.txt 22-Jun-2023 16:17 109473 dmsp_16_ephemeris_20151229.txt 22-Jun-2023 16:17 109478 dmsp_17_ephemeris_20151229.txt 22-Jun-2023 16:17 109384 dmsp_18_ephemeris_20151229.txt 22-Jun-2023 16:17 109343 dmsp_19_ephemeris_20151229.txt 22-Jun-2023 16:17 109251