../ dmsp_15_ephemeris_20151226.txt 22-Jun-2023 16:17 109421 dmsp_16_ephemeris_20151226.txt 22-Jun-2023 16:17 109321 dmsp_17_ephemeris_20151226.txt 22-Jun-2023 16:17 109195 dmsp_18_ephemeris_20151226.txt 22-Jun-2023 16:17 109369 dmsp_19_ephemeris_20151226.txt 22-Jun-2023 16:17 109348