Occultation of TYC 1855-00232-1 by 231 Vindobona on 2023 Aug 25 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 = +/- 2 secs d Proba- Location Longitude Latitude alt U.T. Sepn Alt Sun km bility o ' o ' m h m s " o o 170 - 0% ** Path limit plus 3-Sigma ** 167 S 0% Moose Jaw SK -105 35. 50 25. 543 11 48 39 -0.056 55 -3 143 S 1% 848 Tenagra Observatory, Cottag -122 55. 43 45. 177 11 47 43 -0.047 44 -17 137 S 2% Paul Swadener OR mobile from L. -122 5. 44 15. 0 11 47 46 -0.045 45 -16 129 - 2% ** Path limit plus 2-Sigma ** 128 S 2% Lynn Carroll, BlueRiver Res., O -122 15. 44 15. 492 11 47 46 -0.043 45 -17 122 S 4% Mel Bartels, fro Eugene, Oregon -122 35. 44 5. 272 11 47 45 -0.040 45 -17 118 S 4% Jeff Phillips, _ Eugene, Oreg -122 35. 44 5. 256 11 47 45 -0.039 45 -17 115 S 5% Walla Walla WA -118 25. 46 5. 285 11 47 59 -0.038 48 -13 114 S 5% Eugene OR - Eugene Astro Soc -122 55. 44 5. 0 11 47 44 -0.038 44 -17 102 S 9% Eugene OR - Rick Kang -123 5. 44 5. 136 11 47 44 -0.034 44 -17 101 S 10% Eugene OR - Frank Szczepansk -123 5. 44 5. 130 11 47 44 -0.033 44 -17 98 S 11% Eugene, OR Fred Domineack -123 15. 44 5. 125 11 47 44 -0.032 44 -17 97 S 11% Eugene OR - Tracy Stephensen -123 15. 44 5. 123 11 47 44 -0.032 44 -17 88 S 16% Umatilla OR Tony George 12 -119 15. 45 55. 50 11 47 57 -0.029 47 -14 88 - 16% ** Path limit plus 1-Sigma ** 65 S 32% Moore Obs WA - ColumbiaBasinColl -119 5. 46 15. 125 11 47 58 -0.022 47 -13 60 S 36% Pasco WA - Steve Dart -119 15. 46 15. 127 11 47 58 -0.020 47 -14 55 S 42% Columbia FMT Hanna~William -114 15. 48 25. 981 11 48 15 -0.018 50 -9 52 S 44% Cuyla Shelton OR 1sig W. zone L -123 15. 44 35. 0 11 47 46 -0.017 44 -17 50 S 46% St. Mary, MT - GlacierPark 45cm -113 25. 48 45. 1369 11 48 17 -0.016 50 -9 46 - 49% *** Path limit *** 41 S 54% G63 Mill Creek Observatory, The -121 15. 45 35. 190 11 47 52 -0.014 46 -15 25 S 66% Salem OR -123 5. 44 55. 47 11 47 47 -0.008 44 -17 12 S 72% Bob Anderson, Vi to State Pk, O -121 45. 45 45. 300 11 47 52 -0.004 45 -15 1 S 74% Gresham, OR Patton Echols -122 25. 45 25. 157 11 47 50 0.000 45 -16 1 S 74% Spokane WA -117 25. 47 35. 576 11 48 6 0.000 48 -12 0 - 74% **** Centre Line **** -7 N 73% Lake OswegOR Anderson~Robert -122 45. 45 25. 169 11 47 49 0.002 45 -16 -10 N 72% Jeff Dobbins, Portland, OR -122 45. 45 25. 150 11 47 49 0.003 45 -16 -11 N 72% Howard Banich, s Portland, OR -122 35. 45 35. 66 11 47 50 0.004 45 -16 -11 N 72% John Gillis, Tig d, OR -122 45. 45 25. 207 11 47 49 0.004 44 -16 -12 N 72% Jeff Martin, Por and, OR -122 35. 45 35. 66 11 47 50 0.004 45 -16 -12 N 72% Sleaford Observatory, SK- Huziak -105 55. 52 5. 148 11 48 43 0.004 54 -3 -13 N 71% Beaverton, OR Scott Huddlest -122 45. 45 25. 0 11 47 49 0.004 45 -16 -14 N 71% Scott Huddleston Beaverton, OR -122 45. 45 25. 100 11 47 49 0.005 44 -16 -14 N 71% Portland OR -122 45. 45 35. 23 11 47 50 0.005 45 -16 -16 N 70% PORTLAND OR KNOX~RICHARD -122 45. 45 25. 58 11 47 49 0.005 44 -16 -18 N 69% Lethbridge AB -112 55. 49 45. 909 11 48 21 0.006 50 -8 -22 N 67% Robert Bond, Portland,OR -122 55. 45 35. 69 11 47 49 0.007 44 -16 -23 N 67% Portland, OR Gary Allen -122 45. 45 35. 0 11 47 49 0.008 44 -16 -24 N 66% Yakima WA -120 35. 46 35. 323 11 47 57 0.008 46 -14 -31 N 61% 667 Wanapum Dam -119 55. 46 55. 158 11 47 59 0.010 46 -14 -35 N 58% G57 Dilbert Observatory, Forest -123 5. 45 35. 37 11 47 49 0.012 44 -16 -36 N 57% Deer Park WA Balholm~Peter -117 25. 48 5. 698 11 48 7 0.012 48 -12 -39 N 55% Marysville, WA S. Preston 200 -122 5. 46 5. 135 11 47 52 0.013 45 -15 -43 N 52% SASKATOON SK HENNIGAN~DOUGLA -106 45. 52 5. 503 11 48 41 0.014 53 -3 -45 N 50% Univ. of Sask. Obs - R. Huziak -106 45. 52 15. 155 11 48 41 0.015 53 -3 -46 N 49% Howard Knytych, appoose, OR -122 55. 45 45. 30 11 47 50 0.015 44 -16 -46 - 49% *** Path limit *** -54 N 42% Chuck Dethloff, mber, OR -123 15. 45 45. 204 11 47 49 0.018 44 -16 -66 N 32% 664 Manastash Ridge Observatory -120 45. 46 55. 1194 11 47 58 0.022 46 -14 -88 - 16% ** Path limit plus 1-Sigma ** -129 - 2% ** Path limit plus 2-Sigma ** -144 N 1% 653 Torus Observatory, Buckley -122 5. 47 15. 191 11 47 56 0.048 45 -15 -153 N 1% 917 Pacific Lutheran University -122 25. 47 5. 71 11 47 55 0.051 45 -15 -163 N 0% Tacoma WA -122 25. 47 15. 34 11 47 56 0.054 45 -15 -164 N 0% 647 Stone Finder Observatory, C -114 5. 50 45. 1027 11 48 22 0.054 49 -8 -170 - 0% ** Path limit plus 3-Sigma ** Prediction of 2023 Aug 6.7