../ dmsp_15_ephemeris_20131204.txt 22-Jun-2023 16:36 109424 dmsp_16_ephemeris_20131204.txt 22-Jun-2023 16:36 109322 dmsp_17_ephemeris_20131204.txt 22-Jun-2023 16:36 109284 dmsp_18_ephemeris_20131204.txt 22-Jun-2023 16:36 109361