../ dmsp_15_ephemeris_20111108.txt 22-Jun-2023 00:18 109432 dmsp_16_ephemeris_20111108.txt 22-Jun-2023 00:18 109428 dmsp_17_ephemeris_20111108.txt 22-Jun-2023 00:18 109427 dmsp_18_ephemeris_20111108.txt 22-Jun-2023 00:18 109429