Occultation of TYC 4698-01223-1 by 618 Elfriede on 2021 Jan 31 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 = +/- 3 secs d Proba- Location Longitude Latitude alt U.T. Sepn Alt Sun km bility o ' o ' m h m s " o o 219 - 0% ** Path limit plus 3-Sigma ** 214 S 0% AHL Chad Ellington - 98 35. 35 35. 490 0 10 54 -0.085 54 -3 212 S 0% Lawrence KS - Dave Dyer - 95 15. 38 55. 247 0 11 14 -0.084 51 -6 209 S 0% Enid, OK Astro. Soc., approx - 97 45. 36 25. 0 0 10 59 -0.083 53 -4 208 S 0% Enid, OK N.OK College C - 97 55. 36 25. 372 0 10 59 -0.082 53 -4 207 S 0% Lawrence KS - Richard Wilds - 95 15. 38 55. 282 0 11 14 -0.082 51 -6 207 S 0% Lyndon, KS HART - 95 45. 38 35. 400 0 11 12 -0.082 51 -6 206 S 0% Enid, OK Adventure Ques - 97 55. 36 25. 372 0 10 59 -0.081 53 -4 201 S 1% Knoxville IA McCormick~Russell - 93 5. 41 15. 274 0 11 27 -0.079 48 -9 199 S 1% H35 Leavenworth - 95 5. 39 25. 239 0 11 16 -0.079 50 -7 192 S 1% H36 Sandlot Observatory, Scrant - 95 45. 38 45. 298 0 11 12 -0.076 51 -6 190 S 1% GRINNELL IA GRINNELL COLLEG - 92 45. 41 45. 325 0 11 29 -0.075 48 -9 188 S 1% Lamoni IA - Graceland Univ - 93 55. 40 35. 338 0 11 23 -0.074 49 -8 184 S 1% St Joseph MO - 94 55. 39 45. 259 0 11 18 -0.073 50 -7 177 S 2% TOPEKA KS CRAIG A. MCMANUS - 95 45. 39 5. 280 0 11 13 -0.070 51 -6 175 S 2% TOPEKA KS EASTON~REX - 95 45. 39 5. 451 0 11 13 -0.069 51 -6 175 S 2% 451 West Skies Observatory, Mul - 97 15. 37 25. 327 0 11 4 -0.069 52 -4 175 S 2% TOPEKA KS MCMANUS~CRAIG A - 95 55. 38 55. 280 0 11 12 -0.069 51 -6 171 - 2% ** Path limit plus 2-Sigma ** 165 S 3% 734 Farpoint Observatory - 96 5. 38 55. 371 0 11 12 -0.065 51 -6 164 S 3% WICHITA KS ROBERT MCARTHUR - 97 15. 37 35. 216 0 11 4 -0.065 52 -4 163 S 3% Waterloo IA - 92 25. 42 25. 259 0 11 32 -0.065 47 -10 155 S 5% CedarFal IA Tom Hockey - 92 25. 42 35. 0 0 11 32 -0.061 47 -10 154 S 5% near Topeka, KS HART - 96 5. 38 55. 400 0 11 12 -0.061 51 -6 152 S 6% TOPEKA KS WILDS~RICHARD - 96 5. 38 55. 448 0 11 11 -0.060 51 -6 149 S 6% Wichita, KS - Albert Dill - 97 25. 37 45. 427 0 11 4 -0.059 52 -4 147 S 7% LaCrosse WI Robert Allen - 91 15. 43 45. 366 0 11 39 -0.058 46 -11 143 S 8% Holton, KS aprox. Mike Ford - 95 45. 39 25. 0 0 11 14 -0.057 50 -6 142 S 8% Des Moines IA - 93 35. 41 35. 245 0 11 26 -0.056 48 -8 141 S 9% WICHITA KS RATCLIFFE~MARTI - 97 25. 37 55. 216 0 11 5 -0.056 52 -4 137 S 10% H42 Wartburg College Observator - 92 25. 42 45. 232 0 11 32 -0.054 47 -10 136 S 10% 742 Drake University, Des Moine - 93 45. 41 35. 225 0 11 26 -0.054 48 -8 136 S 11% DES MOINES IA GALLOWAY~JOE - 93 45. 41 35. 304 0 11 26 -0.054 48 -8 125 S 15% H38 Timberline Observatory, Urb - 94 5. 41 25. 276 0 11 25 -0.049 48 -8 124 S 16% Nevada IA George Forsyth - 93 25. 42 5. 0 0 11 28 -0.049 48 -9 122 - 16% ** Path limit plus 1-Sigma ** 113 S 21% Ames IA Robin Formaker - 93 35. 41 55. 0 0 11 27 -0.045 48 -9 111 S 23% AMES IA WORMLEY~SAMUEL - 93 35. 42 5. 305 0 11 27 -0.044 48 -9 102 S 28% 936 Ibis Observatory, Manhaatan - 96 35. 39 15. 262 0 11 11 -0.040 50 -5 91 S 36% Boone IA Fick Obs., Iowa St. - 93 55. 42 5. 333 0 11 26 -0.036 48 -8 74 - 50% *** Path limit *** 72 S 51% 750 Hobbs Observatory, Fall Cre - 91 15. 44 45. 246 0 11 41 -0.029 45 -11 60 S 60% Canadian TX Terrill Bartlett -100 25. 35 55. 800 0 10 49 -0.024 53 -1 59 S 61% EauClair WI U. of Wisconsin - 91 35. 44 45. 268 0 11 40 -0.023 45 -11 56 S 63% Salina KS - 97 35. 38 55. 374 0 11 7 -0.022 51 -5 51 S 67% Coon Rapids IA - 94 45. 41 55. 0 0 11 24 -0.020 48 -8 50 S 68% Rochester MN - 92 25. 44 5. 302 0 11 36 -0.020 45 -10 48 S 69% Nebraska City, NE - E. Lanning - 95 55. 40 45. 0 0 11 17 -0.019 49 -6 45 S 71% Austin MN -- Sola Fide Obs - 92 55. 43 35. 320 0 11 33 -0.018 46 -9 17 S 84% AlbertLe MN Ken Fiscus - 93 25. 43 35. 0 0 11 32 -0.007 46 -9 8 S 86% Omaha NE - 95 55. 41 15. 317 0 11 19 -0.003 48 -7 3 S 86% Omaha NE - Robert Dunn - 96 5. 41 15. 402 0 11 18 -0.001 48 -7 0 - 87% **** Centre Line **** -2 N 86% Omaha NE approximate - 96 5. 41 15. 350 0 11 18 0.001 48 -6 -6 N 86% Omaha NE - John Johnson - 96 5. 41 15. 328 0 11 18 0.002 48 -6 -8 N 86% Lincoln NE M. Gaskell & Johnso - 96 35. 40 55. 354 0 11 16 0.003 49 -6 -14 N 85% Lincoln NE - 96 45. 40 45. 350 0 11 15 0.005 49 -6 -17 N 84% Sarona WI Al Timblin - 91 45. 45 45. 371 0 11 42 0.007 44 -11 -19 N 84% Faribault, MN - Kochab Obs - 12" - 93 15. 44 15. 325 0 11 34 0.007 45 -9 -23 N 82% 741 Goodsell Observatory, North - 93 5. 44 25. 269 0 11 35 0.009 45 -10 -24 N 82% Northfield MN Messner~Steve - 93 5. 44 35. 288 0 11 35 0.010 45 -10 -39 N 75% Dodge City KS -100 5. 37 45. 755 0 10 56 0.015 52 -2 -45 N 71% Thunder Bay ON - 89 15. 48 25. 188 0 11 54 0.018 41 -13 -49 N 68% H37 Grems Timmons Observatories - 94 45. 43 15. 404 0 11 27 0.020 46 -8 -53 N 66% St Paul MN - 93 5. 44 55. 238 0 11 36 0.021 45 -10 -55 N 64% Thunder Bay ON Randy McAllister - 89 35. 48 15. 0 0 11 53 0.022 41 -13 -56 N 63% St Paul MN - I 94 Graze Site - 93 5. 44 55. 280 0 11 36 0.022 45 -10 -63 N 59% 743 University of Minnesota, Mi - 93 15. 44 55. -11 0 11 36 0.025 45 -10 -63 N 58% H39 S.O.S. Observatory, Minneap - 93 15. 44 55. 267 0 11 36 0.025 45 -10 -73 N 50% 855 Wayside Observatory, Minnet - 93 25. 44 55. 220 0 11 35 0.029 45 -9 -74 - 50% *** Path limit *** -76 N 48% MINNETOK MN DAVID SEVERSON - 93 35. 44 55. 304 0 11 35 0.030 45 -9 -102 N 28% Pine City MN - 92 55. 45 55. 200 0 11 39 0.040 44 -10 -105 N 26% Sioux City IA - 96 25. 42 25. 338 0 11 21 0.041 47 -7 -106 N 25% Superior WI - 92 5. 46 45. 192 0 11 43 0.042 43 -11 -111 N 23% Duluth MN - 92 5. 46 45. 186 0 11 43 0.044 43 -11 -111 N 22% Duluth, MN Bob King - 92 5. 46 55. 400 0 11 44 0.044 43 -11 -112 N 22% Duluth MN Douglas Dunham - 92 5. 46 45. 383 0 11 43 0.044 43 -11 -122 - 16% ** Path limit plus 1-Sigma ** -157 N 5% VERMILLN SD CHRIS KEATING - 96 55. 42 45. 305 0 11 20 0.062 47 -6 -159 N 4% SAINT CLOUD MN LATTERELL~CHARL - 94 5. 45 35. 313 0 11 35 0.063 44 -9 -160 N 4% StCloud MN - 94 15. 45 35. 317 0 11 35 0.063 44 -9 -171 - 2% ** Path limit plus 2-Sigma ** -193 N 1% Sioux Falls SD - 96 45. 43 35. 425 0 11 23 0.076 46 -7 -219 - 0% ** Path limit plus 3-Sigma ** Prediction of 2020 Mar 3.1