../ dmsp_15_ephemeris_20151204.txt 22-Jun-2023 16:21 109422 dmsp_16_ephemeris_20151204.txt 22-Jun-2023 16:21 109426 dmsp_17_ephemeris_20151204.txt 22-Jun-2023 16:21 109256 dmsp_18_ephemeris_20151204.txt 22-Jun-2023 16:21 109300 dmsp_19_ephemeris_20151204.txt 22-Jun-2023 16:21 109356