IOTA/IOTA-ES occultation update for (828) Lindemannia / UCAC4 327-104872 event on 2023 May 25, 07:07 UT Visible from USA, SE Canada Summary ------- On 2023 May 25 UT, the 52.1 km diameter asteroid (828) Lindemannia will occult a 13.8 mag star in the constellation Ophiuchus for observers along a path across USA, SE Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.50 mag to 15.02 mag (the magnitude of the asteroid) for at most 4.840 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 100 * date and approx. time of event: 2023 May 25, 07:03 - 2023 May 25, 07:11 * geocentric midpoint of event [JD]: 2460089.79664192 * magnitude of target star: 13.83 * magnitude drop [mag]: 1.50 * estimated maximum duration [s]: 4.840 * Moon: 29 % sunlit, 134° distance * Sun: 161° distance * rough path description: USA, SE Canada Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 144 * 1 sigma uncertainty interval [path widths]: +/- 0.15 * 1 sigma uncertainty interval [seconds]: +/- 3.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.005", 92°) * approx speed of asteroid's shadow [km/s]: 10.7761 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 327-104872 by 828 Lindemannia on 2023 May 25 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude -129 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 58 34 6 .. .. .. 58 14 29 .... -128 0 0 58 58 48 7 10 39.8 0 144 -9 .. .. .. 57 52 15 .. .. .. 57 33 15 .... -127 0 0 58 16 4 7 10 39.6 1 145 -9 59 26 16 57 11 42 .. .. .. 56 53 16 -1.05 -126 0 0 57 34 49 7 10 39.0 2 146 -10 58 42 28 56 32 25 59 4 6 56 14 30 -1.81 -125 0 0 56 54 57 7 10 38.1 3 147 -11 58 0 20 55 54 21 58 21 9 55 36 54 -2.09 -124 0 0 56 16 25 7 10 36.8 4 148 -12 57 19 45 55 17 28 57 39 50 55 0 27 -2.24 -123 0 0 55 39 10 7 10 35.1 4 149 -13 56 40 38 54 41 43 57 0 5 54 25 6 -2.33 -122 0 0 55 3 8 7 10 33.2 5 150 -13 56 2 56 54 7 4 56 21 47 53 50 49 -2.38 -121 0 0 54 28 18 7 10 30.9 6 150 -14 55 26 33 53 33 31 55 44 53 53 17 36 -2.43 -120 0 0 53 54 37 7 10 28.4 7 151 -15 54 51 28 53 1 1 55 9 19 52 45 26 -2.46 -119 0 0 53 22 4 7 10 25.5 8 152 -15 54 17 37 52 29 34 54 35 1 52 14 16 -2.48 -118 0 0 52 50 37 7 10 22.4 8 153 -16 53 44 58 51 59 8 54 1 58 51 44 7 -2.50 -117 0 0 52 20 15 7 10 19.0 9 154 -17 53 13 29 51 29 42 53 30 6 51 14 57 -2.52 -116 0 0 51 50 56 7 10 15.4 10 155 -17 52 43 8 51 1 16 52 59 25 50 46 46 -2.53 -115 0 0 51 22 39 7 10 11.5 10 155 -18 52 13 54 50 33 49 52 29 52 50 19 32 -2.54 -114 0 0 50 55 24 7 10 7.4 11 156 -18 51 45 45 50 7 19 52 1 25 49 53 15 -2.55 -113 0 0 50 29 8 7 10 3.1 12 157 -19 51 18 40 49 41 47 51 34 4 49 27 54 -2.56 -112 0 0 50 3 51 7 9 58.6 12 158 -19 50 52 37 49 17 10 51 7 46 49 3 29 -2.56 -111 0 0 49 39 33 7 9 53.9 13 159 -20 50 27 36 48 53 30 50 42 30 48 39 59 -2.57 -110 0 0 49 16 12 7 9 48.9 14 160 -20 50 3 35 48 30 45 50 18 16 48 17 24 -2.57 -109 0 0 48 53 49 7 9 43.8 14 160 -20 49 40 34 48 8 54 49 55 3 47 55 43 -2.58 -108 0 0 48 32 21 7 9 38.5 15 161 -21 49 18 32 47 47 58 49 32 49 47 34 55 -2.58 -107 0 0 48 11 50 7 9 33.1 15 162 -21 48 57 28 47 27 56 49 11 34 47 15 1 -2.59 -106 0 0 47 52 14 7 9 27.5 16 163 -21 48 37 21 47 8 47 48 51 18 46 56 0 -2.59 -105 0 0 47 33 32 7 9 21.7 16 164 -22 48 18 11 46 50 31 48 31 59 46 37 51 -2.59 -104 0 0 47 15 45 7 9 15.8 17 165 -22 47 59 58 46 33 8 48 13 36 46 20 35 -2.59 -103 0 0 46 58 52 7 9 9.7 17 166 -22 47 42 39 46 16 37 47 56 10 46 4 10 -2.59 -102 0 0 46 42 52 7 9 3.6 17 167 -22 47 26 17 46 0 58 47 39 40 45 48 37 -2.60 -101 0 0 46 27 46 7 8 57.3 18 167 -22 47 10 49 45 46 10 47 24 5 45 33 55 -2.60 -100 0 0 46 13 32 7 8 50.9 18 168 -23 46 56 15 45 32 14 47 9 25 45 20 4 -2.60 - 99 0 0 46 0 11 7 8 44.4 19 169 -23 46 42 36 45 19 10 46 55 40 45 7 4 -2.60 - 98 0 0 45 47 41 7 8 37.8 19 170 -23 46 29 49 45 6 56 46 42 48 44 54 54 -2.60 - 97 0 0 45 36 4 7 8 31.1 19 171 -23 46 17 57 44 55 32 46 30 50 44 43 35 -2.60 - 96 0 0 45 25 19 7 8 24.3 20 172 -23 46 6 57 44 45 0 46 19 46 44 33 6 -2.60 - 95 0 0 45 15 24 7 8 17.5 20 173 -23 45 56 50 44 35 17 46 9 34 44 23 27 -2.60 - 94 0 0 45 6 21 7 8 10.6 20 174 -23 45 47 35 44 26 25 46 0 16 44 14 38 -2.61 - 93 0 0 44 58 10 7 8 3.6 20 175 -23 45 39 13 44 18 23 45 51 50 44 6 38 -2.61 - 92 0 0 44 50 49 7 7 56.6 20 176 -23 45 31 43 44 11 10 45 44 17 43 59 28 -2.61 - 91 0 0 44 44 19 7 7 49.6 21 177 -23 45 25 4 44 4 48 45 37 36 43 53 8 -2.61 - 90 0 0 44 38 39 7 7 42.5 21 178 -23 45 19 18 43 59 15 45 31 48 43 47 37 -2.61 - 89 0 0 44 33 51 7 7 35.3 21 179 -22 45 14 23 43 54 32 45 26 51 43 42 55 -2.61 - 88 0 0 44 29 52 7 7 28.2 21 179 -22 45 10 20 43 50 38 45 22 46 43 39 2 -2.61 - 87 0 0 44 26 44 7 7 21.0 21 180 -22 45 7 8 43 47 33 45 19 33 43 35 59 -2.61 - 86 0 0 44 24 26 7 7 13.9 21 181 -22 45 4 47 43 45 18 45 17 12 43 33 44 -2.61 - 85 0 0 44 22 59 7 7 6.7 21 182 -22 45 3 18 43 43 52 45 15 42 43 32 19 -2.62 - 84 0 0 44 22 22 7 6 59.5 21 183 -21 45 2 41 43 43 16 45 15 4 43 31 42 -2.62 - 83 0 0 44 22 35 7 6 52.3 21 184 -21 45 2 54 43 43 29 45 15 18 43 31 55 -2.62 - 82 0 0 44 23 39 7 6 45.2 21 185 -21 45 3 59 43 44 31 45 16 23 43 32 57 -2.62 - 81 0 0 44 25 33 7 6 38.1 21 186 -20 45 5 55 43 46 22 45 18 20 43 34 48 -2.62 - 80 0 0 44 28 17 7 6 31.0 21 187 -20 45 8 43 43 49 4 45 21 9 43 37 28 -2.62 - 79 0 0 44 31 51 7 6 24.0 20 188 -20 45 12 22 43 52 34 45 24 49 43 40 58 -2.63 - 78 0 0 44 36 17 7 6 17.0 20 189 -19 45 16 53 43 56 54 45 29 22 43 45 16 -2.63 - 77 0 0 44 41 32 7 6 10.0 20 190 -19 45 22 15 44 2 4 45 34 47 43 50 24 -2.63 - 76 0 0 44 47 39 7 6 3.1 20 191 -18 45 28 30 44 8 3 45 41 3 43 56 21 -2.63 - 75 0 0 44 54 36 7 5 56.3 20 192 -18 45 35 36 44 14 52 45 48 13 44 3 8 -2.64 - 74 0 0 45 2 24 7 5 49.6 19 193 -18 45 43 34 44 22 31 45 56 14 44 10 44 -2.64 - 73 0 0 45 11 4 7 5 42.9 19 193 -17 45 52 25 44 31 0 46 5 9 44 19 11 -2.64 - 72 0 0 45 20 34 7 5 36.4 19 194 -17 46 2 8 44 40 20 46 14 56 44 28 27 -2.64 - 71 0 0 45 30 57 7 5 29.9 18 195 -16 46 12 45 44 50 29 46 25 37 44 38 33 -2.65 - 70 0 0 45 42 11 7 5 23.5 18 196 -15 46 24 14 45 1 30 46 37 11 44 49 30 -2.65 - 69 0 0 45 54 17 7 5 17.3 18 197 -15 46 36 37 45 13 21 46 49 39 45 1 17 -2.65 - 68 0 0 46 7 16 7 5 11.1 17 198 -14 46 49 53 45 26 4 47 3 1 45 13 55 -2.65 - 67 0 0 46 21 7 7 5 5.1 17 199 -14 47 4 4 45 39 38 47 17 18 45 27 24 -2.66 - 66 0 0 46 35 51 7 4 59.2 16 200 -13 47 19 9 45 54 3 47 32 30 45 41 44 -2.66 - 65 0 0 46 51 29 7 4 53.5 16 201 -12 47 35 9 46 9 20 47 48 37 45 56 55 -2.67 - 64 0 0 47 8 0 7 4 47.9 15 201 -12 47 52 4 46 25 29 48 5 40 46 12 58 -2.67 - 63 0 0 47 25 25 7 4 42.5 15 202 -11 48 9 55 46 42 31 48 23 40 46 29 53 -2.67 - 62 0 0 47 43 44 7 4 37.2 14 203 -11 48 28 42 47 0 25 48 42 36 46 47 41 -2.68 - 61 0 0 48 2 59 7 4 32.1 14 204 -10 48 48 27 47 19 13 49 2 30 47 6 21 -2.68 - 60 0 0 48 23 9 7 4 27.2 13 205 -9 49 9 8 47 38 55 49 23 22 47 25 54 -2.69 - 59 0 0 48 44 14 7 4 22.5 13 206 -8 49 30 48 47 59 30 49 45 13 47 46 21 -2.69 - 58 0 0 49 6 16 7 4 17.9 12 206 -8 49 53 27 48 20 59 50 8 4 48 7 41 -2.70 - 57 0 0 49 29 15 7 4 13.6 11 207 -7 50 17 5 48 43 23 50 31 55 48 29 56 -2.70 - 56 0 0 49 53 12 7 4 9.5 11 208 -6 50 41 45 49 6 43 50 56 48 48 53 6 -2.71 - 55 0 0 50 18 8 7 4 5.6 10 209 -6 51 7 25 49 31 0 51 22 44 49 17 11 -2.71 - 54 0 0 50 44 3 7 4 1.9 9 210 -5 51 34 9 49 56 12 51 49 43 49 42 12 -2.72 - 53 0 0 51 10 58 7 3 58.5 9 211 -4 52 1 56 50 22 22 52 17 48 50 8 9 -2.73 - 52 0 0 51 38 54 7 3 55.4 8 211 -3 52 30 48 50 49 30 52 46 59 50 35 4 -2.74 - 51 0 0 52 7 53 7 3 52.4 7 212 -2 53 0 47 51 17 37 53 17 18 51 2 56 -2.75 - 50 0 0 52 37 55 7 3 49.8 6 213 -2 53 31 54 51 46 43 53 48 47 51 31 47 -2.76 - 49 0 0 53 9 2 7 3 47.4 6 214 -1 54 4 11 52 16 50 54 21 28 52 1 38 -2.78 - 48 0 0 53 41 14 7 3 45.4 5 215 0 54 37 40 52 47 59 54 55 22 52 32 29 -2.80 - 47 0 0 54 14 35 7 3 43.6 4 215 1 55 12 23 53 20 10 55 30 33 53 4 21 -2.83 - 46 0 0 54 49 4 7 3 42.1 3 216 2 55 48 23 53 53 24 56 7 4 53 37 16 -2.87 - 45 0 0 55 24 46 7 3 41.0 2 217 2 56 25 43 54 27 44 56 44 58 54 11 14 -2.94 - 44 0 0 56 1 41 7 3 40.2 2 218 3 57 4 26 55 3 11 57 24 19 54 46 17 -3.08 - 43 0 0 56 39 52 7 3 39.7 1 219 4 .. .. .. 55 39 46 .. .. .. 55 22 27 -3.54 - 42 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 56 17 32 .. .. .. 55 59 45 .... - 41 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 56 38 13 .... Uncertainty in time = +/- 4 secs Prediction of 2023 Apr 27.7 Data for the target star ------------------------ * name: UCAC4 327-104872 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 26 33.7261 DE: -24 47 52.481 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 26 33.7261 DE: -24 47 52.481 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.600,0.400) * V mag [mag]: 13.8 * B mag [mag]: 14.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (828) Lindemannia asteroid class: approx. diameter [km]: 52 approx. diameter ["]: 0.033 distance from Earth [AU]: 2.15000 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#111 date of fit: 2023 Apr 24 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.026", 0.005", 92.4° remarks: * orbital elements for (828)Lindemannia : Mean anomaly = 319.9841479933 deg Arg. of pericenter = 296.6779743207 deg Long. of node = 1.8036941825 deg Inclination = 1.1247190874 deg Eccentricity = 0.0273588448 Semimajor axis = 3.1911086229 AU Perihelion dist = 3.1038035772 AU Mag: H = 10.40, G = 0.15 Epoch of elements : MJD 60089.29664500 TDT (2023 May 25.2966) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1112023Apr24,4.84,2023,5,25,7.119406,0.024468,0.931989,-6.080214,0.160136,-0.001804,0.000246,0.000001,0.000000 -87.4030,-24.8185,72.44,20.92,False UCAC4 327-104872,17.44270169,-24.7979114,14.37,13.83,13.54,0.0,0,,17.46683777,-24.8185493,1.50,1.39,0,0,1 828,Lindemannia,15.02,52.1,2.1500,0,0,-1.826,0.65,,2.6,0 0,319.9329,2023,5,25,296.6780,1.8037,1.1247,0.02736,3.19111,3.10380,10.41,5.0,0.15 1.151,0.0263,0.0050,92,0.0050,Known errors,2.88,-1,-1,-1 20230525_104872,60061.66 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 27, 15:52 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org