../ dmsp_15_ephemeris_20150522.txt 22-Jun-2023 16:16 109450 dmsp_16_ephemeris_20150522.txt 22-Jun-2023 16:16 109451 dmsp_17_ephemeris_20150522.txt 22-Jun-2023 16:16 109656 dmsp_18_ephemeris_20150522.txt 22-Jun-2023 16:16 109527 dmsp_19_ephemeris_20150522.txt 22-Jun-2023 16:16 109707