../ dmsp_08_ephemeris_19911111.txt 21-Jun-2023 23:44 109530 dmsp_09_ephemeris_19911111.txt 21-Jun-2023 23:44 109274 dmsp_10_ephemeris_19911111.txt 21-Jun-2023 23:44 109497 dmsp_11_ephemeris_19911111.txt 21-Jun-2023 23:44 243