../ dmsp_15_ephemeris_20110128.txt 22-Jun-2023 00:17 108032 dmsp_16_ephemeris_20110128.txt 22-Jun-2023 00:17 108022 dmsp_17_ephemeris_20110128.txt 22-Jun-2023 00:17 107939 dmsp_18_ephemeris_20110128.txt 22-Jun-2023 00:17 108083