../ dmsp_15_ephemeris_20211127.txt 22-Jun-2023 00:49 109389 dmsp_16_ephemeris_20211127.txt 22-Jun-2023 00:49 109483 dmsp_17_ephemeris_20211127.txt 22-Jun-2023 00:49 109247 dmsp_18_ephemeris_20211127.txt 22-Jun-2023 00:49 109369