../ dmsp_15_ephemeris_20151212.txt 10-Sep-2021 18:46 109412 dmsp_16_ephemeris_20151212.txt 10-Sep-2021 18:46 109438 dmsp_17_ephemeris_20151212.txt 10-Sep-2021 18:46 109225 dmsp_18_ephemeris_20151212.txt 10-Sep-2021 18:46 109302 dmsp_19_ephemeris_20151212.txt 10-Sep-2021 18:46 109390