#UTDate ZP (J) ZPerr date change 20130219 25.8713 0.0215 20130228 25.8999 0.0682 20130302 25.8684 0.0362 20130417 25.9303 0.0211 20130418 25.9252 0.0241 20130425 26.1009 0.0414 20130522 25.9264 0.0186 20130523 nan 0.0000 20130524 nan 0.0000 20130608 25.9011 0.0149 20130611 25.9310 0.0221 20130612 nan 0.0000 20131018 25.9241 0.0152 20131217 25.8766 0.0208 20131219 nan 0.0000 20131220 nan 0.0000 20131221 nan 0.0000 20140113 25.8419 0.0210 20140114 25.8368 0.0140 20140119 25.8391 0.0196 20140121 25.8258 0.0235 20140122 25.8936 0.0216 20140211 25.8768 0.0226 20140412 25.9045 0.0201 20140413 nan 0.0000 20140415 25.9013 0.0341 20140416 25.8890 0.0153 20140618 25.8928 0.0083 20140907 nan 0.0000 20141203 25.9214 0.0197 20141204 nan 0.0000 20141205 nan 0.0000 20141206 nan 0.0000 20141207 nan 0.0000 20141209 nan 0.0000 20150104 25.8609 0.0242 20150105 nan 0.0000 20150107 nan 0.0000 20150109 nan 0.0000 20150110 nan 0.0000 20150305 nan 0.0000 20150306 nan 0.0000 20150307 nan 0.0000 20150308 nan 0.0000 20150309 25.8566 0.0193 20150310 25.8804 0.0280 20150311 nan 0.0000 20150312 25.8622 0.0318 20150313 25.8901 0.0309 20150528 nan 0.0000 20150530 nan 0.0000 20150601 25.8797 0.0261 20150602 25.8217 0.0725 20160219 25.9417 0.0314 20160222 nan 0.0000 20161107 nan 0.0000 20161109 25.9419 0.0199 20170112 25.8475 0.0101 20170114 25.8083 0.0087 20171030 25.9231 0.0114 20171207 25.8889 0.0185 20171210 25.8943 0.0235 20180302 25.8884 0.0190 20180303 25.8733 0.0186 20180304 nan 0.0000 20180802 25.8245 0.0228 20180806 25.8429 0.0169 20181021 nan 0.0000 20181022 nan 0.0000 20171031 25.8939 0.0233 20140120 25.8407 0.0174 20140212 25.9072 0.0227 20140213 25.8681 0.0187