IOTA/IOTA-ES occultation update for (1354) Botha / TYC 6198-00629-1 event on 2024 Mar 05, 02:03 UT Visible from Summary ------- On 2024 Mar 05 UT, the 44.469 km diameter asteroid (1354) Botha will occult a 11.5 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.44 mag to 15.95 mag (the magnitude of the asteroid) for at most 3.880 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: 99 * date and approx. time of event: 2024 Mar 05, 01:57 - 2024 Mar 05, 02:10 * geocentric midpoint of event [JD]: 2460374.58600362 * magnitude of target star: 11.53 * magnitude drop [mag]: 4.44 * estimated maximum duration [s]: 3.880 * Moon: 34 % sunlit, 35° distance * Sun: 106° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 65 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 3.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.001", 108°) * approx speed of asteroid's shadow [km/s]: 11.4533 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6198-00629-1 by 1354 Botha on 2024 Mar 5 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 2 0 0 .. .. .... .. .. .. .. .. .. 62 14 14 .. .. .. 62 7 26 .. .. .. .... 3 0 0 62 7 2 1 57 33.5 1 142 -30 61 39 7 62 35 22 61 32 18 62 42 24 .... 4 0 0 61 31 11 1 57 33.7 1 143 -30 61 3 13 61 59 33 60 56 24 62 6 36 -0.61 5 0 0 60 54 32 1 57 34.0 2 144 -30 60 26 33 61 22 56 60 19 43 61 29 59 -0.76 6 0 0 60 17 7 1 57 34.5 3 145 -30 59 49 7 60 45 31 59 42 16 60 52 35 -0.84 7 0 0 59 38 56 1 57 35.1 4 146 -31 59 10 56 60 7 21 59 4 5 60 14 24 -0.88 8 0 0 59 0 1 1 57 36.0 5 146 -31 58 32 1 59 28 25 58 25 11 59 35 28 -0.91 9 0 0 58 20 23 1 57 37.0 5 147 -31 57 52 24 58 48 45 57 45 34 58 55 48 -0.93 10 0 0 57 40 3 1 57 38.3 6 148 -31 57 12 6 58 8 23 57 5 17 58 15 26 -0.95 11 0 0 56 59 2 1 57 39.7 7 149 -31 56 31 9 57 27 20 56 24 20 57 34 22 -0.96 12 0 0 56 17 24 1 57 41.4 8 150 -31 55 49 34 56 45 37 55 42 46 56 52 38 -0.97 13 0 0 55 35 8 1 57 43.3 9 151 -31 55 7 23 56 3 17 55 0 36 56 10 17 -0.98 14 0 0 54 52 18 1 57 45.4 10 152 -31 54 24 37 55 20 22 54 17 52 55 27 21 -0.98 15 0 0 54 8 55 1 57 47.8 11 153 -31 53 41 20 54 36 54 53 34 36 54 43 51 -0.99 16 0 0 53 25 2 1 57 50.4 12 153 -31 52 57 33 53 52 54 52 50 50 53 59 49 -0.99 17 0 0 52 40 41 1 57 53.3 13 154 -31 52 13 19 53 8 25 52 6 37 53 15 19 -1.00 18 0 0 51 55 53 1 57 56.4 14 155 -31 51 28 39 52 23 30 51 21 59 52 30 22 -1.00 19 0 0 51 10 43 1 57 59.8 15 156 -31 50 43 36 51 38 11 50 36 58 51 45 1 -1.00 20 0 0 50 25 11 1 58 3.4 15 157 -31 49 58 13 50 52 30 49 51 37 50 59 18 -1.01 21 0 0 49 39 21 1 58 7.4 16 158 -31 49 12 32 50 6 31 49 5 59 50 13 16 -1.01 22 0 0 48 53 16 1 58 11.6 17 159 -31 48 26 36 49 20 16 48 20 5 49 26 58 -1.01 23 0 0 48 6 57 1 58 16.1 18 159 -30 47 40 27 48 33 47 47 33 58 48 40 27 -1.01 24 0 0 47 20 28 1 58 20.8 19 160 -30 46 54 8 47 47 8 46 47 42 47 53 45 -1.02 25 0 0 46 33 52 1 58 25.8 20 161 -30 46 7 42 47 0 20 46 1 19 47 6 55 -1.02 26 0 0 45 47 10 1 58 31.2 21 162 -30 45 21 12 46 13 28 45 14 51 46 19 59 -1.02 27 0 0 45 0 27 1 58 36.7 22 163 -29 44 34 39 45 26 33 44 28 21 45 33 1 -1.02 28 0 0 44 13 44 1 58 42.6 23 164 -29 43 48 7 44 39 38 43 41 52 44 46 3 -1.02 29 0 0 43 27 4 1 58 48.7 24 165 -28 43 1 39 43 52 46 42 55 26 43 59 8 -1.03 30 0 0 42 40 29 1 58 55.1 25 166 -28 42 15 16 43 5 59 42 9 6 43 12 19 -1.03 31 0 0 41 54 3 1 59 1.8 26 167 -28 41 29 2 42 19 21 41 22 55 42 25 38 -1.03 32 0 0 41 7 48 1 59 8.7 27 168 -27 40 42 58 41 32 53 40 36 54 41 39 7 -1.03 33 0 0 40 21 46 1 59 15.9 28 169 -27 39 57 8 40 46 39 39 51 7 40 52 49 -1.03 34 0 0 39 36 0 1 59 23.3 29 170 -26 39 11 34 40 0 40 39 5 36 40 6 47 -1.03 35 0 0 38 50 32 1 59 31.0 30 171 -25 38 26 18 39 15 0 38 20 23 39 21 4 -1.04 36 0 0 38 5 24 1 59 38.8 30 172 -25 37 41 23 38 29 40 37 35 30 38 35 41 -1.04 37 0 0 37 20 39 1 59 46.9 31 173 -24 36 56 50 37 44 42 36 51 0 37 50 40 -1.04 38 0 0 36 36 19 1 59 55.2 32 174 -23 36 12 42 37 0 10 36 6 55 37 6 4 -1.04 39 0 0 35 52 25 2 0 3.8 33 175 -23 35 29 0 36 16 4 35 23 16 36 21 56 -1.04 40 0 0 35 9 0 2 0 12.5 34 176 -22 34 45 47 35 32 27 34 40 5 35 38 15 -1.04 41 0 0 34 26 6 2 0 21.4 34 177 -21 34 3 4 34 49 20 33 57 26 34 55 6 -1.05 42 0 0 33 43 44 2 0 30.4 35 178 -20 33 20 54 34 6 47 33 15 18 34 12 29 -1.05 43 0 0 33 1 56 2 0 39.7 36 180 -20 32 39 17 33 24 47 32 33 45 33 30 27 -1.05 44 0 0 32 20 44 2 0 49.1 37 181 -19 31 58 16 32 43 23 31 52 46 32 49 0 -1.05 45 0 0 31 40 9 2 0 58.6 37 182 -18 31 17 52 32 2 36 31 12 25 32 8 10 -1.05 46 0 0 31 0 12 2 1 8.2 38 183 -17 30 38 7 31 22 29 30 32 42 31 28 0 -1.05 47 0 0 30 20 55 2 1 18.0 38 185 -16 29 59 1 30 43 1 29 53 39 30 48 29 -1.06 48 0 0 29 42 20 2 1 27.9 39 186 -15 29 20 36 30 4 14 29 15 16 30 9 40 -1.06 49 0 0 29 4 26 2 1 37.9 40 187 -15 28 42 53 29 26 10 28 37 36 29 31 33 -1.06 50 0 0 28 27 17 2 1 48.0 40 189 -14 28 5 53 28 48 50 28 0 39 28 54 10 -1.06 51 0 0 27 50 51 2 1 58.1 41 190 -13 27 29 38 28 12 14 27 24 26 28 17 32 -1.06 52 0 0 27 15 11 2 2 8.4 41 191 -12 26 54 8 27 36 24 26 48 58 27 41 40 -1.06 53 0 0 26 40 17 2 2 18.7 41 193 -11 26 19 24 27 1 21 26 14 16 27 6 33 -1.06 54 0 0 26 6 11 2 2 29.0 42 194 -10 25 45 26 26 27 4 25 40 21 26 32 15 -1.07 55 0 0 25 32 52 2 2 39.4 42 195 -9 25 12 17 25 53 36 25 7 14 25 58 44 -1.07 56 0 0 25 0 21 2 2 49.8 42 197 -8 24 39 55 25 20 56 24 34 54 25 26 2 -1.07 57 0 0 24 28 39 2 3 0.2 42 198 -7 24 8 22 24 49 6 24 3 23 24 54 9 -1.07 58 0 0 23 57 47 2 3 10.6 43 200 -6 23 37 38 24 18 5 23 32 41 24 23 7 -1.07 59 0 0 23 27 45 2 3 21.1 43 201 -5 23 7 44 23 47 55 23 2 50 23 52 54 -1.07 60 0 0 22 58 34 2 3 31.5 43 202 -4 22 38 41 23 18 36 22 33 48 23 23 33 -1.07 61 0 0 22 30 13 2 3 41.9 43 204 -3 22 10 28 22 50 7 22 5 37 22 55 2 -1.07 62 0 0 22 2 44 2 3 52.3 43 205 -2 21 43 6 22 22 30 21 38 17 22 27 23 -1.08 63 0 0 21 36 6 2 4 2.6 43 207 -1 21 16 35 21 55 45 21 11 48 22 0 36 -1.08 64 0 0 21 10 20 2 4 12.9 43 208 0 20 50 56 21 29 51 20 46 11 21 34 41 -1.08 65 0 0 20 45 26 2 4 23.2 43 209 1 20 26 9 21 4 50 20 21 25 21 9 38 -1.08 66 0 0 20 21 23 2 4 33.4 43 211 2 20 2 13 20 40 41 19 57 31 20 45 28 -1.08 67 0 0 19 58 13 2 4 43.5 42 212 3 19 39 9 20 17 25 19 34 28 20 22 10 -1.08 68 0 0 19 35 56 2 4 53.6 42 213 4 19 16 57 19 55 1 19 12 18 19 59 44 -1.08 69 0 0 19 14 30 2 5 3.6 42 214 5 18 55 38 19 33 30 18 51 0 19 38 12 -1.08 70 0 0 18 53 58 2 5 13.5 42 216 6 18 35 11 19 12 51 18 30 34 19 17 32 -1.08 71 0 0 18 34 17 2 5 23.3 41 217 7 18 15 36 18 53 6 18 11 1 18 57 45 -1.08 72 0 0 18 15 29 2 5 33.0 41 218 8 17 56 53 18 34 13 17 52 19 18 38 50 -1.09 73 0 0 17 57 34 2 5 42.7 41 219 9 17 39 3 18 16 13 17 34 30 18 20 49 -1.09 74 0 0 17 40 31 2 5 52.2 40 220 10 17 22 4 17 59 5 17 17 33 18 3 40 -1.09 75 0 0 17 24 21 2 6 1.6 40 221 11 17 5 58 17 42 50 17 1 28 17 47 24 -1.09 76 0 0 17 9 3 2 6 10.9 39 222 12 16 50 45 17 27 28 16 46 15 17 32 1 -1.09 77 0 0 16 54 37 2 6 20.1 39 223 13 16 36 23 17 12 58 16 31 54 17 17 30 -1.09 78 0 0 16 41 4 2 6 29.1 38 224 14 16 22 53 16 59 21 16 18 26 17 3 52 -1.09 79 0 0 16 28 23 2 6 38.1 38 225 15 16 10 16 16 46 36 16 5 49 16 51 7 -1.09 80 0 0 16 16 34 2 6 46.9 37 226 16 15 58 30 16 34 44 15 54 4 16 39 13 -1.09 81 0 0 16 5 36 2 6 55.5 36 227 17 15 47 35 16 23 43 15 43 10 16 28 12 -1.09 82 0 0 15 55 31 2 7 4.0 36 228 18 15 37 33 16 13 35 15 33 8 16 18 3 -1.09 83 0 0 15 46 17 2 7 12.4 35 229 19 15 28 22 16 4 19 15 23 58 16 8 47 -1.09 84 0 0 15 37 56 2 7 20.6 35 230 20 15 20 2 15 55 55 15 15 39 16 0 22 -1.09 85 0 0 15 30 25 2 7 28.6 34 231 21 15 12 34 15 48 22 15 8 11 15 52 48 -1.09 86 0 0 15 23 46 2 7 36.5 33 231 22 15 5 57 15 41 41 15 1 34 15 46 7 -1.09 87 0 0 15 17 58 2 7 44.3 32 232 23 15 0 11 15 35 51 14 55 49 15 40 17 -1.09 88 0 0 15 13 2 2 7 51.9 32 233 24 14 55 16 15 30 53 14 50 54 15 35 18 -1.09 89 0 0 15 8 56 2 7 59.3 31 233 25 14 51 11 15 26 46 14 46 50 15 31 11 -1.09 90 0 0 15 5 41 2 8 6.5 30 234 26 14 47 58 15 23 30 14 43 37 15 27 55 -1.09 91 0 0 15 3 17 2 8 13.6 29 235 27 14 45 35 15 21 6 14 41 14 15 25 30 -1.09 92 0 0 15 1 44 2 8 20.4 29 235 28 14 44 3 15 19 32 14 39 42 15 23 56 -1.09 93 0 0 15 1 2 2 8 27.1 28 236 29 14 43 21 15 18 49 14 39 0 15 23 13 -1.09 94 0 0 15 1 10 2 8 33.6 27 236 30 14 43 29 15 18 57 14 39 9 15 23 20 -1.09 95 0 0 15 2 8 2 8 40.0 26 237 31 14 44 27 15 19 55 14 40 7 15 24 19 -1.09 96 0 0 15 3 57 2 8 46.1 25 237 32 14 46 16 15 21 44 14 41 55 15 26 7 -1.09 97 0 0 15 6 36 2 8 52.1 24 238 33 14 48 54 15 24 23 14 44 34 15 28 46 -1.09 98 0 0 15 10 4 2 8 57.8 24 238 34 14 52 23 15 27 52 14 48 2 15 32 16 -1.09 99 0 0 15 14 23 2 9 3.3 23 239 35 14 56 40 15 32 11 14 52 20 15 36 35 -1.09 100 0 0 15 19 31 2 9 8.7 22 239 36 15 1 48 15 37 21 14 57 27 15 41 45 -1.09 101 0 0 15 25 30 2 9 13.8 21 240 37 15 7 45 15 43 20 15 3 24 15 47 45 -1.09 102 0 0 15 32 18 2 9 18.8 20 240 37 15 14 32 15 50 9 15 10 10 15 54 34 -1.09 103 0 0 15 39 55 2 9 23.5 19 240 38 15 22 7 15 57 48 15 17 45 16 2 14 -1.09 104 0 0 15 48 22 2 9 28.0 18 241 39 15 30 32 16 6 17 15 26 10 16 10 43 -1.09 105 0 0 15 57 37 2 9 32.3 17 241 40 15 39 46 16 15 35 15 35 23 16 20 1 -1.09 106 0 0 16 7 43 2 9 36.4 16 242 41 15 49 49 16 25 42 15 45 26 16 30 9 -1.09 107 0 0 16 18 37 2 9 40.2 15 242 42 16 0 41 16 36 38 15 56 17 16 41 6 -1.09 108 0 0 16 30 20 2 9 43.8 14 242 42 16 12 22 16 48 24 16 7 57 16 52 52 -1.09 109 0 0 16 42 52 2 9 47.2 13 243 43 16 24 51 17 0 59 16 20 25 17 5 27 -1.09 110 0 0 16 56 12 2 9 50.4 12 243 44 16 38 8 17 14 22 16 33 42 17 18 52 -1.10 111 0 0 17 10 21 2 9 53.4 11 243 45 16 52 14 17 28 35 16 47 47 17 33 5 -1.10 112 0 0 17 25 19 2 9 56.1 11 244 46 17 7 8 17 43 36 17 2 41 17 48 7 -1.10 113 0 0 17 41 5 2 9 58.5 10 244 46 17 22 51 17 59 25 17 18 22 18 3 57 -1.10 114 0 0 17 57 38 2 10 0.8 9 244 47 17 39 21 18 16 3 17 34 51 18 20 36 -1.11 115 0 0 18 15 0 2 10 2.8 8 245 48 17 56 39 18 33 29 17 52 8 18 38 3 -1.11 116 0 0 18 33 10 2 10 4.5 7 245 48 18 14 44 18 51 42 18 10 13 18 56 17 -1.12 117 0 0 18 52 7 2 10 6.0 6 245 49 18 33 37 19 10 44 18 29 5 19 15 20 -1.13 118 0 0 19 11 52 2 10 7.3 5 246 49 18 53 17 19 30 33 18 48 44 19 35 11 -1.14 119 0 0 19 32 24 2 10 8.3 4 246 50 19 13 44 19 51 10 19 9 10 19 55 49 -1.16 120 0 0 19 53 43 2 10 9.0 3 246 51 19 34 58 20 12 34 19 30 22 20 17 14 -1.20 121 0 0 20 15 48 2 10 9.5 2 247 51 19 56 59 20 34 45 19 52 22 20 39 26 -1.29 122 0 0 20 38 40 2 10 9.8 1 247 52 20 19 45 20 57 43 20 15 7 21 2 25 -1.75 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: TYC 6198-00629-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 45 45.8003 DE: -21 04 47.940 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 45 45.8004 DE: -21 04 47.940 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.5 * B mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1354) Botha asteroid class: approx. diameter [km]: 44 approx. diameter ["]: 0.027 distance from Earth [AU]: 2.25500 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#72 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): 0.027", 0.001", 107.9° remarks: * orbital elements for (1354)Botha : Mean anomaly = 319.2532526473 deg Arg. of pericenter = 250.0923221359 deg Long. of node = 28.6632034693 deg Inclination = 5.9503016566 deg Eccentricity = 0.2150747570 Semimajor axis = 3.1287102492 AU Perihelion dist = 2.4558036528 AU Mag: H = 11.01, G = 0.15 Epoch of elements : MJD 60374.08600362 TDT (2024 Mar 05.0860) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#722023Apr24,3.88,2024,3,5,2.064087,0.306899,0.664526,5.869132,-2.709936,-0.005479,0.001259,0.000000,0.000000 42.5147,-21.1561,151.90,-5.91,False TYC 6198-00629-1,15.76272230,-21.0799832,12.14,11.53,11.20,0.0,0,,15.78624946,-21.1560853,4.44,4.32,0,0,0 1354,Botha,15.95,44.469,2.2550,0,0,1.637,-10.57,,2.4,0 0,319.2379,2024,3,5,250.0923,28.6632,5.9503,0.21507,3.12871,2.45580,11.01,5.0,0.15 1.123,0.0270,0.0009,108,0.0034,Known errors,1.02,0,-1,-1 20240305_0629-1,60139.21 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:07 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org