../ dmsp_15_ephemeris_20111022.txt 22-Jun-2023 00:18 109542 dmsp_16_ephemeris_20111022.txt 22-Jun-2023 00:18 109485 dmsp_17_ephemeris_20111022.txt 22-Jun-2023 00:18 109537 dmsp_18_ephemeris_20111022.txt 22-Jun-2023 00:18 109398