../ dmsp_15_ephemeris_20131219.txt 22-Jun-2023 16:36 109233 dmsp_16_ephemeris_20131219.txt 22-Jun-2023 16:36 109369 dmsp_17_ephemeris_20131219.txt 22-Jun-2023 16:36 109397 dmsp_18_ephemeris_20131219.txt 22-Jun-2023 16:36 109282