../ dmsp_15_ephemeris_20111128.txt 22-Jun-2023 00:18 109426 dmsp_16_ephemeris_20111128.txt 22-Jun-2023 00:18 109318 dmsp_17_ephemeris_20111128.txt 22-Jun-2023 00:18 109331 dmsp_18_ephemeris_20111128.txt 22-Jun-2023 00:18 109327