../ dmsp_15_ephemeris_20190116.txt 22-Jun-2023 00:39 108028 dmsp_16_ephemeris_20190116.txt 22-Jun-2023 00:39 108006 dmsp_17_ephemeris_20190116.txt 22-Jun-2023 00:39 107886 dmsp_18_ephemeris_20190116.txt 22-Jun-2023 00:39 107864