../ dmsp_13_ephemeris_20100521.txt 22-Jun-2023 16:26 243 dmsp_14_ephemeris_20100521.txt 22-Jun-2023 16:26 109695 dmsp_15_ephemeris_20100521.txt 22-Jun-2023 16:26 109613 dmsp_16_ephemeris_20100521.txt 22-Jun-2023 16:26 109749 dmsp_17_ephemeris_20100521.txt 22-Jun-2023 16:26 109643 dmsp_18_ephemeris_20100521.txt 22-Jun-2023 16:26 109513