Occultation of TYC 2421-00971-1 by 54 Alexandra on 2021 Feb 6 Distance from center of occultation path - in km Distances are positive to the right, referenced to the direction of motion along the path Uncertainty in time = +/- 1 secs d Proba- Location Longitude Latitude alt U.T. Sepn Alt Sun km bility o ' o ' m h m s " o o 142 - 0% ** Path limit plus 3-Sigma ** 141 N 0% Magadan Siberia 150 45. 59 35. 10 8 31 39 -0.063 50 -16 127 - 2% ** Path limit plus 2-Sigma ** 112 - 16% ** Path limit plus 1-Sigma ** 97 - 50% *** Path limit *** 0 - 100% **** Centre Line **** -97 - 50% *** Path limit *** -112 - 16% ** Path limit plus 1-Sigma ** -127 - 2% ** Path limit plus 2-Sigma ** -142 - 0% ** Path limit plus 3-Sigma ** Prediction of 2020 Dec 31.0