../ dmsp_15_ephemeris_20110107.txt 22-Jun-2023 16:28 106464 dmsp_16_ephemeris_20110107.txt 22-Jun-2023 16:28 106439 dmsp_17_ephemeris_20110107.txt 22-Jun-2023 16:28 106339 dmsp_18_ephemeris_20110107.txt 22-Jun-2023 16:28 106588