../ dmsp_10_ephemeris_19990919.txt 21-Jun-2023 23:53 243 dmsp_11_ephemeris_19990919.txt 21-Jun-2023 23:53 109750 dmsp_12_ephemeris_19990919.txt 21-Jun-2023 23:53 109768 dmsp_13_ephemeris_19990919.txt 21-Jun-2023 23:53 109730 dmsp_14_ephemeris_19990919.txt 21-Jun-2023 23:53 109724