../ dmsp_10_ephemeris_19990721.txt 21-Jun-2023 23:53 109408 dmsp_11_ephemeris_19990721.txt 21-Jun-2023 23:53 109760 dmsp_12_ephemeris_19990721.txt 21-Jun-2023 23:53 109693 dmsp_13_ephemeris_19990721.txt 21-Jun-2023 23:53 109747 dmsp_14_ephemeris_19990721.txt 21-Jun-2023 23:53 109747