../ dmsp_15_ephemeris_20151212.txt 22-Jun-2023 16:17 109412 dmsp_16_ephemeris_20151212.txt 22-Jun-2023 16:17 109438 dmsp_17_ephemeris_20151212.txt 22-Jun-2023 16:17 109225 dmsp_18_ephemeris_20151212.txt 22-Jun-2023 16:17 109302 dmsp_19_ephemeris_20151212.txt 22-Jun-2023 16:17 109390