../ dmsp_15_ephemeris_20151209.txt 22-Jun-2023 16:17 109421 dmsp_16_ephemeris_20151209.txt 22-Jun-2023 16:17 109334 dmsp_17_ephemeris_20151209.txt 22-Jun-2023 16:17 109459 dmsp_18_ephemeris_20151209.txt 22-Jun-2023 16:17 109369 dmsp_19_ephemeris_20151209.txt 22-Jun-2023 16:17 109325