../ dmsp_15_ephemeris_20150819.txt 22-Jun-2023 00:28 109596 dmsp_16_ephemeris_20150819.txt 22-Jun-2023 00:28 109650 dmsp_17_ephemeris_20150819.txt 22-Jun-2023 00:28 109712 dmsp_18_ephemeris_20150819.txt 22-Jun-2023 00:28 109598 dmsp_19_ephemeris_20150819.txt 22-Jun-2023 00:28 109780