../ dmsp_15_ephemeris_20150513.txt 22-Jun-2023 16:16 109374 dmsp_16_ephemeris_20150513.txt 22-Jun-2023 16:16 109664 dmsp_17_ephemeris_20150513.txt 22-Jun-2023 16:16 109696 dmsp_18_ephemeris_20150513.txt 22-Jun-2023 16:16 109454 dmsp_19_ephemeris_20150513.txt 22-Jun-2023 16:16 109654