../ dmsp_15_ephemeris_20191208.txt 22-Jun-2023 00:42 109453 dmsp_16_ephemeris_20191208.txt 22-Jun-2023 00:42 109445 dmsp_17_ephemeris_20191208.txt 22-Jun-2023 00:42 109402 dmsp_18_ephemeris_20191208.txt 22-Jun-2023 00:42 109306