../ dmsp_15_ephemeris_20150620.txt 22-Jun-2023 16:16 109450 dmsp_16_ephemeris_20150620.txt 22-Jun-2023 16:16 109558 dmsp_17_ephemeris_20150620.txt 22-Jun-2023 16:16 109705 dmsp_18_ephemeris_20150620.txt 22-Jun-2023 16:16 109636 dmsp_19_ephemeris_20150620.txt 22-Jun-2023 16:16 109574