../ dmsp_15_ephemeris_20151213.txt 22-Jun-2023 00:29 109393 dmsp_16_ephemeris_20151213.txt 22-Jun-2023 00:29 109251 dmsp_17_ephemeris_20151213.txt 22-Jun-2023 00:29 109321 dmsp_18_ephemeris_20151213.txt 22-Jun-2023 00:29 109393 dmsp_19_ephemeris_20151213.txt 22-Jun-2023 00:29 109297