../ dmsp_15_ephemeris_20111228.txt 22-Jun-2023 16:12 109391 dmsp_16_ephemeris_20111228.txt 22-Jun-2023 16:12 109351 dmsp_17_ephemeris_20111228.txt 22-Jun-2023 16:12 109345 dmsp_18_ephemeris_20111228.txt 22-Jun-2023 16:12 109363