IOTA/IOTA-ES occultation update for (2808) Belgrano / TYC 7396-00448-1 event on 2024 Jun 22, 17:28 UT Visible from Summary ------- On 2024 Jun 22 UT, the 14.962 km diameter asteroid (2808) Belgrano will occult a 9.9 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.23 mag to 16.09 mag (the magnitude of the asteroid) for at most 1.100 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: 76 * date and approx. time of event: 2024 Jun 22, 17:24 - 2024 Jun 22, 17:31 * geocentric midpoint of event [JD]: 2460484.22777971 * magnitude of target star: 9.86 * magnitude drop [mag]: 6.23 * estimated maximum duration [s]: 1.100 * Moon: 99 % sunlit, 9° distance * Sun: 171° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 35 * 1 sigma uncertainty interval [path widths]: +/- 0.73 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.005", 81°) * approx speed of asteroid's shadow [km/s]: 13.5604 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7396-00448-1 by 2808 Belgrano on 2024 Jun 22 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 66 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 52 40 32 .... 67 0 0 52 23 16 17 31 18.5 1 153 -10 52 43 39 52 3 25 53 14 28 51 35 17 .... 68 0 0 51 18 41 17 31 17.9 2 153 -11 51 37 52 50 59 57 52 6 47 50 33 17 -1.35 69 0 0 50 17 24 17 31 16.8 3 154 -12 50 35 35 49 59 36 51 2 54 49 34 12 -1.67 70 0 0 49 19 3 17 31 15.3 5 155 -13 49 36 23 49 2 3 50 2 21 48 37 45 -1.81 71 0 0 48 23 23 17 31 13.4 6 156 -14 48 39 58 48 7 5 49 4 46 47 43 44 -1.89 72 0 0 47 30 9 17 31 11.2 7 157 -16 47 46 5 47 14 28 48 9 53 46 51 58 -1.95 73 0 0 46 39 10 17 31 8.6 8 157 -17 46 54 33 46 24 2 47 17 27 46 2 18 -1.98 74 0 0 45 50 20 17 31 5.6 9 158 -18 46 5 11 45 35 41 46 27 18 45 14 38 -2.01 75 0 0 45 3 29 17 31 2.4 10 159 -19 45 17 52 44 49 16 45 39 17 44 28 49 -2.03 76 0 0 44 18 31 17 30 58.9 11 160 -20 44 32 30 44 4 42 44 53 16 43 44 49 -2.05 77 0 0 43 35 21 17 30 55.2 12 160 -20 43 48 58 43 21 54 44 9 10 43 2 31 -2.06 78 0 0 42 53 55 17 30 51.2 13 161 -21 43 7 11 42 40 47 43 26 52 42 21 52 -2.07 79 0 0 42 14 8 17 30 47.0 13 162 -22 42 27 6 42 1 19 42 46 18 41 42 49 -2.08 80 0 0 41 35 58 17 30 42.5 14 163 -23 41 48 38 41 23 26 42 7 24 41 5 20 -2.09 81 0 0 40 59 22 17 30 37.9 15 163 -24 41 11 46 40 47 4 41 30 7 40 29 20 -2.09 82 0 0 40 24 14 17 30 33.1 16 164 -25 40 36 24 40 12 11 40 54 24 39 54 46 -2.10 83 0 0 39 50 33 17 30 28.1 16 165 -25 40 2 30 39 38 43 40 20 10 39 21 37 -2.10 84 0 0 39 18 18 17 30 22.9 17 166 -26 39 30 2 39 6 40 39 47 23 38 49 50 -2.10 85 0 0 38 47 26 17 30 17.5 18 167 -27 38 58 58 38 35 59 39 16 2 38 19 25 -2.11 86 0 0 38 17 54 17 30 12.1 19 168 -27 38 29 16 38 6 38 38 46 4 37 50 18 -2.11 87 0 0 37 49 42 17 30 6.4 19 168 -28 38 0 54 37 38 35 38 17 27 37 22 29 -2.11 88 0 0 37 22 48 17 30 0.7 20 169 -29 37 33 51 37 11 50 37 50 10 36 55 57 -2.11 89 0 0 36 57 11 17 29 54.8 20 170 -29 37 8 5 36 46 21 37 24 12 36 30 40 -2.12 90 0 0 36 32 49 17 29 48.9 21 171 -30 36 43 36 36 22 7 36 59 30 36 6 37 -2.12 91 0 0 36 9 41 17 29 42.8 21 172 -30 36 20 20 35 59 6 36 36 4 35 43 46 -2.12 92 0 0 35 47 46 17 29 36.6 22 173 -31 35 58 19 35 37 18 36 13 52 35 22 8 -2.12 93 0 0 35 27 3 17 29 30.3 22 173 -31 35 37 30 35 16 41 35 52 53 35 1 40 -2.12 94 0 0 35 7 31 17 29 24.0 23 174 -31 35 17 52 34 57 15 35 33 7 34 42 22 -2.12 95 0 0 34 49 10 17 29 17.6 23 175 -32 34 59 25 34 38 59 35 14 32 34 24 13 -2.12 96 0 0 34 31 58 17 29 11.1 23 176 -32 34 42 8 34 21 51 34 57 7 34 7 13 -2.12 97 0 0 34 15 54 17 29 4.6 24 177 -32 34 26 0 34 5 52 34 40 53 33 51 20 -2.12 98 0 0 34 0 59 17 28 58.0 24 178 -33 34 11 0 33 51 1 34 25 47 33 36 34 -2.12 99 0 0 33 47 11 17 28 51.4 24 179 -33 33 57 9 33 37 17 34 11 49 33 22 55 -2.13 100 0 0 33 34 30 17 28 44.7 24 180 -33 33 44 24 33 24 39 33 59 0 33 10 23 -2.13 101 0 0 33 22 55 17 28 38.0 25 181 -33 33 32 47 33 13 8 33 47 17 32 58 56 -2.13 102 0 0 33 12 27 17 28 31.3 25 181 -33 33 22 15 33 2 42 33 36 42 32 48 34 -2.13 103 0 0 33 3 4 17 28 24.6 25 182 -33 33 12 50 32 53 22 33 27 13 32 39 17 -2.13 104 0 0 32 54 47 17 28 17.8 25 183 -34 33 4 31 32 45 7 33 18 50 32 31 5 -2.13 105 0 0 32 47 35 17 28 11.0 25 184 -34 32 57 17 32 37 57 33 11 34 32 23 58 -2.13 106 0 0 32 41 27 17 28 4.3 25 185 -34 32 51 8 32 31 51 33 5 22 32 17 54 -2.13 107 0 0 32 36 24 17 27 57.5 25 186 -34 32 46 3 32 26 49 33 0 16 32 12 54 -2.13 108 0 0 32 32 26 17 27 50.8 25 187 -33 32 42 4 32 22 51 32 56 15 32 8 57 -2.13 109 0 0 32 29 31 17 27 44.0 25 188 -33 32 39 9 32 19 57 32 53 19 32 6 5 -2.13 110 0 0 32 27 41 17 27 37.3 25 189 -33 32 37 18 32 18 8 32 51 28 32 4 15 -2.14 111 0 0 32 26 55 17 27 30.6 25 190 -33 32 36 32 32 17 22 32 50 41 32 3 30 -2.14 112 0 0 32 27 14 17 27 24.0 25 191 -33 32 36 51 32 17 40 32 51 0 32 3 48 -2.14 113 0 0 32 28 36 17 27 17.4 25 191 -33 32 38 13 32 19 2 32 52 24 32 5 10 -2.14 114 0 0 32 31 3 17 27 10.8 24 192 -32 32 40 41 32 21 28 32 54 52 32 7 35 -2.14 115 0 0 32 34 34 17 27 4.3 24 193 -32 32 44 13 32 24 59 32 58 26 32 11 4 -2.14 116 0 0 32 39 10 17 26 57.8 24 194 -32 32 48 50 32 29 33 33 3 5 32 15 36 -2.14 117 0 0 32 44 50 17 26 51.4 23 195 -31 32 54 32 32 35 12 33 8 49 32 21 13 -2.15 118 0 0 32 51 36 17 26 45.1 23 196 -31 33 1 19 32 41 56 33 15 39 32 27 54 -2.15 119 0 0 32 59 27 17 26 38.9 23 197 -31 33 9 13 32 49 45 33 23 35 32 35 40 -2.15 120 0 0 33 8 23 17 26 32.7 22 197 -30 33 18 12 32 58 39 33 32 38 32 44 31 -2.15 121 0 0 33 18 26 17 26 26.6 22 198 -30 33 28 17 33 8 39 33 42 47 32 54 27 -2.15 122 0 0 33 29 35 17 26 20.6 22 199 -29 33 39 29 33 19 45 33 54 4 33 5 28 -2.16 123 0 0 33 41 51 17 26 14.7 21 200 -29 33 51 48 33 31 57 34 6 29 33 17 36 -2.16 124 0 0 33 55 14 17 26 8.9 21 201 -28 34 5 16 33 45 17 34 20 2 33 30 51 -2.16 125 0 0 34 9 46 17 26 3.2 20 202 -27 34 19 51 33 59 44 34 34 44 33 45 12 -2.16 126 0 0 34 25 26 17 25 57.7 20 202 -27 34 35 36 34 15 20 34 50 35 34 0 42 -2.17 127 0 0 34 42 16 17 25 52.2 19 203 -26 34 52 31 34 32 5 35 7 37 34 17 20 -2.17 128 0 0 35 0 15 17 25 46.9 18 204 -26 35 10 36 34 49 59 35 25 50 34 35 6 -2.17 129 0 0 35 19 26 17 25 41.7 18 205 -25 35 29 52 35 9 4 35 45 15 34 54 3 -2.18 130 0 0 35 39 49 17 25 36.7 17 205 -24 35 50 21 35 29 21 36 5 54 35 14 11 -2.18 131 0 0 36 1 24 17 25 31.8 16 206 -23 36 12 3 35 50 50 36 27 46 35 35 30 -2.18 132 0 0 36 24 13 17 25 27.1 16 207 -23 36 35 0 36 13 32 36 50 53 35 58 2 -2.19 133 0 0 36 48 17 17 25 22.6 15 208 -22 36 59 11 36 37 28 37 15 17 36 21 47 -2.19 134 0 0 37 13 38 17 25 18.2 14 208 -21 37 24 40 37 2 40 37 40 59 36 46 48 -2.20 135 0 0 37 40 16 17 25 14.1 14 209 -20 37 51 28 37 29 9 38 8 0 37 13 4 -2.20 136 0 0 38 8 12 17 25 10.1 13 210 -20 38 19 34 37 56 56 38 36 21 37 40 38 -2.21 137 0 0 38 37 30 17 25 6.3 12 210 -19 38 49 2 38 26 3 39 6 6 38 9 30 -2.21 138 0 0 39 8 10 17 25 2.8 11 211 -18 39 19 54 38 56 32 39 37 14 38 39 43 -2.22 139 0 0 39 40 14 17 24 59.5 10 212 -17 39 52 11 39 28 24 40 9 50 39 11 18 -2.23 140 0 0 40 13 45 17 24 56.4 9 212 -16 40 25 55 40 1 42 40 43 54 39 44 17 -2.23 141 0 0 40 48 44 17 24 53.5 9 213 -15 41 1 9 40 36 27 41 19 30 40 18 43 -2.24 142 0 0 41 25 16 17 24 51.0 8 214 -14 41 37 56 41 12 44 41 56 42 40 54 38 -2.25 143 0 0 42 3 22 17 24 48.6 7 215 -13 42 16 19 41 50 33 42 35 30 41 32 4 -2.27 144 0 0 42 43 4 17 24 46.6 6 215 -12 42 56 20 42 29 58 43 16 0 42 11 3 -2.29 145 0 0 43 24 28 17 24 44.9 5 216 -11 43 38 4 43 11 1 43 58 15 42 51 39 -2.32 146 0 0 44 7 37 17 24 43.5 4 217 -10 44 21 36 43 53 48 44 42 22 43 33 55 -2.36 147 0 0 44 52 36 17 24 42.4 3 217 -9 45 7 0 44 38 23 45 28 24 44 17 57 -2.43 148 0 0 45 39 31 17 24 41.7 2 218 -8 45 54 22 45 24 52 46 16 29 45 3 48 -2.60 149 0 0 46 28 28 17 24 41.4 1 219 -7 46 43 50 46 13 19 47 6 44 45 51 35 -3.41 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: TYC 7396-00448-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 14 07.2551 DE: -32 08 14.606 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 14 07.2551 DE: -32 08 14.606 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.9 * B mag [mag]: 10.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2808) Belgrano asteroid class: approx. diameter [km]: 15 approx. diameter ["]: 0.009 distance from Earth [AU]: 2.22430 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#55 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): 0.020", 0.005", 80.9° remarks: * orbital elements for (2808)Belgrano : Mean anomaly = 204.7137523541 deg Arg. of pericenter = 116.7265443087 deg Long. of node = 314.2877311823 deg Inclination = 8.9627978337 deg Eccentricity = 0.0810714290 Semimajor axis = 3.0075946154 AU Perihelion dist = 2.7637646221 AU Mag: H = 11.52, G = 0.15 Epoch of elements : MJD 60483.72778008 TDT (2024 Jun 22.7278) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,1.10,2024,6,22,17.466713,0.088992,0.899902,-7.616717,0.753411,-0.000184,0.000851,0.000001,0.000000 100.5480,-32.1307,-81.45,23.43,False TYC 7396-00448-1,18.23534864,-32.1373904,9.95,9.86,9.81,0.0,0,,18.26232332,-32.1306564,6.23,5.83,0,0,0 2808,Belgrano,16.09,14.962,2.2243,0,0,-2.370,2.98,,1.6,0 0,204.5762,2024,6,22,116.7265,314.2877,8.9628,0.08107,3.00759,2.76376,11.51,5.0,0.15 1.731,0.0200,0.0047,81,0.0068,Known errors,0.54,0,-1,-1 20240622_0448-1,60139.40 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 09:31 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org