../ dmsp_15_ephemeris_20101205.txt 22-Jun-2023 16:07 109302 dmsp_16_ephemeris_20101205.txt 22-Jun-2023 16:07 109261 dmsp_17_ephemeris_20101205.txt 22-Jun-2023 16:07 109352 dmsp_18_ephemeris_20101205.txt 22-Jun-2023 16:07 109416