../ dmsp_15_ephemeris_20110122.txt 22-Jun-2023 00:16 108037 dmsp_16_ephemeris_20110122.txt 22-Jun-2023 00:16 107907 dmsp_17_ephemeris_20110122.txt 22-Jun-2023 00:16 107970 dmsp_18_ephemeris_20110122.txt 22-Jun-2023 00:16 107985