../ dmsp_15_ephemeris_20151013.txt 22-Jun-2023 16:17 109501 dmsp_16_ephemeris_20151013.txt 22-Jun-2023 16:17 109647 dmsp_17_ephemeris_20151013.txt 22-Jun-2023 16:17 109666 dmsp_18_ephemeris_20151013.txt 22-Jun-2023 16:17 109619 dmsp_19_ephemeris_20151013.txt 22-Jun-2023 16:17 109597