../ dmsp_15_ephemeris_20121222.txt 22-Jun-2023 16:33 109426 dmsp_16_ephemeris_20121222.txt 22-Jun-2023 16:33 109289 dmsp_17_ephemeris_20121222.txt 22-Jun-2023 16:33 109300 dmsp_18_ephemeris_20121222.txt 22-Jun-2023 16:33 109463