../ dmsp_15_ephemeris_20120308.txt 22-Jun-2023 16:12 108026 dmsp_16_ephemeris_20120308.txt 22-Jun-2023 16:12 108299 dmsp_17_ephemeris_20120308.txt 22-Jun-2023 16:12 108165 dmsp_18_ephemeris_20120308.txt 22-Jun-2023 16:12 108059