../ dmsp_15_ephemeris_20121124.txt 22-Jun-2023 16:33 109251 dmsp_16_ephemeris_20121124.txt 22-Jun-2023 16:33 109315 dmsp_17_ephemeris_20121124.txt 22-Jun-2023 16:33 109533 dmsp_18_ephemeris_20121124.txt 22-Jun-2023 16:33 109457