../ dmsp_15_ephemeris_20150620.txt 22-Jun-2023 00:28 109450 dmsp_16_ephemeris_20150620.txt 22-Jun-2023 00:28 109558 dmsp_17_ephemeris_20150620.txt 22-Jun-2023 00:28 109705 dmsp_18_ephemeris_20150620.txt 22-Jun-2023 00:28 109636 dmsp_19_ephemeris_20150620.txt 22-Jun-2023 00:28 109574