../ dmsp_15_ephemeris_20160419.txt 22-Jun-2023 00:31 109486 dmsp_16_ephemeris_20160419.txt 22-Jun-2023 00:31 109596 dmsp_17_ephemeris_20160419.txt 22-Jun-2023 00:31 109623 dmsp_18_ephemeris_20160419.txt 22-Jun-2023 00:31 109776 dmsp_19_ephemeris_20160419.txt 22-Jun-2023 00:31 109734