../ dmsp_15_ephemeris_20230103.txt 22-Jun-2023 00:54 106543 dmsp_16_ephemeris_20230103.txt 22-Jun-2023 00:54 106491 dmsp_17_ephemeris_20230103.txt 22-Jun-2023 00:54 106423 dmsp_18_ephemeris_20230103.txt 22-Jun-2023 00:54 106468