../ dmsp_10_ephemeris_19981218.txt 21-Jun-2023 23:52 109411 dmsp_11_ephemeris_19981218.txt 21-Jun-2023 23:52 109463 dmsp_12_ephemeris_19981218.txt 21-Jun-2023 23:52 109425 dmsp_13_ephemeris_19981218.txt 21-Jun-2023 23:52 109483 dmsp_14_ephemeris_19981218.txt 21-Jun-2023 23:52 109527