../ dmsp_15_ephemeris_20151210.txt 22-Jun-2023 16:17 109424 dmsp_16_ephemeris_20151210.txt 22-Jun-2023 16:17 109323 dmsp_17_ephemeris_20151210.txt 22-Jun-2023 16:17 109374 dmsp_18_ephemeris_20151210.txt 22-Jun-2023 16:17 109251 dmsp_19_ephemeris_20151210.txt 22-Jun-2023 16:17 109333