../ dmsp_15_ephemeris_20150411.txt 22-Jun-2023 00:27 109527 dmsp_16_ephemeris_20150411.txt 22-Jun-2023 00:27 109735 dmsp_17_ephemeris_20150411.txt 22-Jun-2023 00:27 109727 dmsp_18_ephemeris_20150411.txt 22-Jun-2023 00:27 109620 dmsp_19_ephemeris_20150411.txt 22-Jun-2023 00:27 109859