../ dmsp_10_ephemeris_19990921.txt 21-Jun-2023 23:53 243 dmsp_11_ephemeris_19990921.txt 21-Jun-2023 23:53 109877 dmsp_12_ephemeris_19990921.txt 21-Jun-2023 23:53 109586 dmsp_13_ephemeris_19990921.txt 21-Jun-2023 23:53 109616 dmsp_14_ephemeris_19990921.txt 21-Jun-2023 23:53 109737