../ dmsp_15_ephemeris_20151219.txt 22-Jun-2023 00:30 109390 dmsp_16_ephemeris_20151219.txt 22-Jun-2023 00:30 109360 dmsp_17_ephemeris_20151219.txt 22-Jun-2023 00:30 109202 dmsp_18_ephemeris_20151219.txt 22-Jun-2023 00:30 109238 dmsp_19_ephemeris_20151219.txt 22-Jun-2023 00:30 109290