../ dmsp_15_ephemeris_20151020.txt 22-Jun-2023 16:21 109596 dmsp_16_ephemeris_20151020.txt 22-Jun-2023 16:21 109620 dmsp_17_ephemeris_20151020.txt 22-Jun-2023 16:21 109663 dmsp_18_ephemeris_20151020.txt 22-Jun-2023 16:21 109457 dmsp_19_ephemeris_20151020.txt 22-Jun-2023 16:21 109599