../ dmsp_15_ephemeris_20111126.txt 22-Jun-2023 00:18 109366 dmsp_16_ephemeris_20111126.txt 22-Jun-2023 00:18 109385 dmsp_17_ephemeris_20111126.txt 22-Jun-2023 00:18 109348 dmsp_18_ephemeris_20111126.txt 22-Jun-2023 00:18 109473