IOTA/IOTA-ES occultation update for (1491) Balduinus / TYC 1397-00593-1 event on 2024 Jan 07, 15:58 UT Visible from Summary ------- On 2024 Jan 07 UT, the 22.0580090763298 km diameter asteroid (1491) Balduinus will occult a 8.7 mag star in the constellation Cancer for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.95 mag to 15.68 mag (the magnitude of the asteroid) for at most 2.550 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: 97 * date and approx. time of event: 2024 Jan 07, 15:52 - 2024 Jan 07, 16:03 * geocentric midpoint of event [JD]: 2460317.16533162 * magnitude of target star: 8.73 * magnitude drop [mag]: 6.95 * estimated maximum duration [s]: 2.550 * Moon: 18 % sunlit, 103° distance * Sun: 154° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 55 * 1 sigma uncertainty interval [path widths]: +/- 0.39 * 1 sigma uncertainty interval [seconds]: +/- 4.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.028, +/- 0.011) * 1 sigma uncertainty ellipse (major, minor, PA): (0.030", 0.002", 111°) * approx speed of asteroid's shadow [km/s]: 8.7151 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1397-00593-1 by 1491 Balduinus on 2024 Jan 7 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 83 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. -52 33 55 .. .. .. .... 84 0 0 -52 44 12 16 2 54.6 0 59 -8 -52 26 38 -53 2 1 -52 13 8 -53 16 2 .... 85 0 0 -52 23 42 16 2 54.3 1 59 -9 -52 6 16 -52 41 22 -51 52 54 -52 55 15 1.38 86 0 0 -52 3 46 16 2 53.8 2 58 -10 -51 46 29 -52 21 17 -51 33 13 -52 35 3 1.74 87 0 0 -51 44 23 16 2 52.9 3 57 -10 -51 27 14 -52 1 45 -51 14 4 -52 15 24 1.91 88 0 0 -51 25 34 16 2 51.8 3 56 -11 -51 8 33 -51 42 48 -50 55 30 -51 56 21 2.01 89 0 0 -51 7 20 16 2 50.4 4 56 -11 -50 50 27 -51 24 26 -50 37 29 -51 37 52 2.07 90 0 0 -50 49 40 16 2 48.8 5 55 -12 -50 32 54 -51 6 39 -50 20 2 -51 19 59 2.11 91 0 0 -50 32 35 16 2 46.9 5 54 -13 -50 15 56 -50 49 26 -50 3 9 -51 2 40 2.14 92 0 0 -50 16 5 16 2 44.8 6 53 -13 -49 59 32 -50 32 49 -49 46 50 -50 45 57 2.16 93 0 0 -50 0 9 16 2 42.3 7 52 -14 -49 43 44 -50 16 47 -49 31 6 -50 29 50 2.18 94 0 0 -49 44 49 16 2 39.7 7 52 -14 -49 28 29 -50 1 20 -49 15 57 -50 14 18 2.20 95 0 0 -49 30 4 16 2 36.8 8 51 -15 -49 13 50 -49 46 29 -49 1 22 -49 59 22 2.21 96 0 0 -49 15 55 16 2 33.6 9 50 -15 -48 59 47 -49 32 14 -48 47 22 -49 45 2 2.22 97 0 0 -49 2 20 16 2 30.2 9 49 -16 -48 46 18 -49 18 34 -48 33 58 -49 31 18 2.23 98 0 0 -48 49 22 16 2 26.6 10 48 -16 -48 33 24 -49 5 30 -48 21 8 -49 18 10 2.24 99 0 0 -48 36 59 16 2 22.8 10 48 -16 -48 21 6 -48 53 2 -48 8 54 -49 5 38 2.24 100 0 0 -48 25 12 16 2 18.7 11 47 -17 -48 9 23 -48 41 10 -47 57 14 -48 53 42 2.25 101 0 0 -48 14 0 16 2 14.4 12 46 -17 -47 58 16 -48 29 54 -47 46 10 -48 42 23 2.25 102 0 0 -48 3 24 16 2 9.8 12 45 -18 -47 47 44 -48 19 14 -47 35 42 -48 31 39 2.26 103 0 0 -47 53 24 16 2 5.1 13 45 -18 -47 37 48 -48 9 10 -47 25 48 -48 21 32 2.26 104 0 0 -47 44 0 16 2 0.2 13 44 -18 -47 28 28 -47 59 42 -47 16 30 -48 12 1 2.26 105 0 0 -47 35 12 16 1 55.0 14 43 -19 -47 19 43 -47 50 50 -47 7 48 -48 3 7 2.27 106 0 0 -47 26 59 16 1 49.7 15 42 -19 -47 11 33 -47 42 35 -46 59 41 -47 54 48 2.27 107 0 0 -47 19 22 16 1 44.1 15 41 -19 -47 3 59 -47 34 55 -46 52 9 -47 47 6 2.27 108 0 0 -47 12 21 16 1 38.4 16 40 -20 -46 57 1 -47 27 51 -46 45 13 -47 40 0 2.27 109 0 0 -47 5 56 16 1 32.5 16 40 -20 -46 50 38 -47 21 24 -46 38 52 -47 33 30 2.28 110 0 0 -47 0 7 16 1 26.4 17 39 -20 -46 44 51 -47 15 32 -46 33 7 -47 27 37 2.28 111 0 0 -46 54 53 16 1 20.2 17 38 -20 -46 39 40 -47 10 16 -46 27 57 -47 22 20 2.28 112 0 0 -46 50 15 16 1 13.8 18 37 -20 -46 35 4 -47 5 36 -46 23 22 -47 17 38 2.28 113 0 0 -46 46 13 16 1 7.2 18 36 -21 -46 31 3 -47 1 33 -46 19 23 -47 13 33 2.28 114 0 0 -46 42 47 16 1 0.5 18 35 -21 -46 27 38 -46 58 5 -46 15 59 -47 10 4 2.28 115 0 0 -46 39 56 16 0 53.6 19 34 -21 -46 24 49 -46 55 13 -46 13 10 -47 7 11 2.28 116 0 0 -46 37 41 16 0 46.6 19 33 -21 -46 22 34 -46 52 57 -46 10 57 -47 4 54 2.28 117 0 0 -46 36 1 16 0 39.4 20 33 -21 -46 20 56 -46 51 16 -46 9 19 -47 3 13 2.29 118 0 0 -46 34 57 16 0 32.1 20 32 -21 -46 19 52 -46 50 11 -46 8 15 -47 2 8 2.29 119 0 0 -46 34 28 16 0 24.7 20 31 -21 -46 19 24 -46 49 42 -46 7 47 -47 1 39 2.29 120 0 0 -46 34 35 16 0 17.2 21 30 -21 -46 19 31 -46 49 49 -46 7 54 -47 1 45 2.29 121 0 0 -46 35 17 16 0 9.6 21 29 -21 -46 20 13 -46 50 31 -46 8 37 -47 2 27 2.29 122 0 0 -46 36 35 16 0 1.8 21 28 -21 -46 21 30 -46 51 49 -46 9 54 -47 3 45 2.29 123 0 0 -46 38 27 15 59 54.0 22 27 -21 -46 23 22 -46 53 42 -46 11 45 -47 5 39 2.29 124 0 0 -46 40 55 15 59 46.1 22 26 -21 -46 25 49 -46 56 11 -46 14 12 -47 8 8 2.29 125 0 0 -46 43 58 15 59 38.1 22 25 -21 -46 28 52 -46 59 14 -46 17 14 -47 11 12 2.29 126 0 0 -46 47 36 15 59 30.0 22 24 -21 -46 32 29 -47 2 54 -46 20 50 -47 14 53 2.29 127 0 0 -46 51 50 15 59 21.8 23 23 -21 -46 36 40 -47 7 8 -46 25 1 -47 19 8 2.30 128 0 0 -46 56 38 15 59 13.6 23 22 -21 -46 41 27 -47 11 58 -46 29 46 -47 23 59 2.30 129 0 0 -47 2 0 15 59 5.3 23 21 -20 -46 46 48 -47 17 22 -46 35 6 -47 29 25 2.30 130 0 0 -47 7 58 15 58 56.9 23 20 -20 -46 52 44 -47 23 22 -46 41 1 -47 35 26 2.30 131 0 0 -47 14 30 15 58 48.6 23 19 -20 -46 59 14 -47 29 56 -46 47 29 -47 42 2 2.30 132 0 0 -47 21 37 15 58 40.1 23 18 -20 -47 6 19 -47 37 6 -46 54 32 -47 49 13 2.30 133 0 0 -47 29 19 15 58 31.7 23 17 -20 -47 13 58 -47 44 50 -47 2 9 -47 57 0 2.30 134 0 0 -47 37 35 15 58 23.2 23 16 -19 -47 22 11 -47 53 9 -47 10 20 -48 5 21 2.30 135 0 0 -47 46 25 15 58 14.7 23 15 -19 -47 30 58 -48 2 2 -47 19 5 -48 14 16 2.31 136 0 0 -47 55 50 15 58 6.2 23 14 -19 -47 40 20 -48 11 30 -47 28 24 -48 23 47 2.31 137 0 0 -48 5 48 15 57 57.6 23 13 -18 -47 50 15 -48 21 32 -47 38 17 -48 33 52 2.31 138 0 0 -48 16 21 15 57 49.1 23 12 -18 -48 0 44 -48 32 9 -47 48 43 -48 44 32 2.31 139 0 0 -48 27 28 15 57 40.6 23 11 -18 -48 11 47 -48 43 19 -47 59 43 -48 55 45 2.31 140 0 0 -48 39 8 15 57 32.1 23 10 -17 -48 23 23 -48 55 4 -48 11 17 -49 7 34 2.31 141 0 0 -48 51 23 15 57 23.6 23 9 -17 -48 35 33 -49 7 23 -48 23 23 -49 19 56 2.32 142 0 0 -49 4 10 15 57 15.2 23 8 -17 -48 48 16 -49 20 15 -48 36 3 -49 32 52 2.32 143 0 0 -49 17 31 15 57 6.8 23 7 -16 -49 1 32 -49 33 41 -48 49 15 -49 46 22 2.32 144 0 0 -49 31 26 15 56 58.4 23 6 -16 -49 15 22 -49 47 41 -49 3 1 -50 0 26 2.32 145 0 0 -49 45 53 15 56 50.1 23 5 -15 -49 29 44 -50 2 14 -49 17 19 -50 15 4 2.32 146 0 0 -50 0 54 15 56 41.8 22 4 -15 -49 44 39 -50 17 20 -49 32 10 -50 30 15 2.33 147 0 0 -50 16 27 15 56 33.7 22 3 -14 -50 0 6 -50 33 0 -49 47 33 -50 45 59 2.33 148 0 0 -50 32 33 15 56 25.5 22 2 -14 -50 16 6 -50 49 12 -50 3 28 -51 2 16 2.33 149 0 0 -50 49 11 15 56 17.5 22 1 -13 -50 32 38 -51 5 57 -50 19 55 -51 19 7 2.33 150 0 0 -51 6 22 15 56 9.6 21 0 -13 -50 49 42 -51 23 14 -50 36 53 -51 36 30 2.34 151 0 0 -51 24 4 15 56 1.7 21 359 -12 -51 7 17 -51 41 4 -50 54 24 -51 54 25 2.34 152 0 0 -51 42 18 15 55 54.0 21 358 -12 -51 25 24 -51 59 26 -51 12 25 -52 12 53 2.34 153 0 0 -52 1 4 15 55 46.3 20 357 -11 -51 44 2 -52 18 19 -51 30 57 -52 31 53 2.34 154 0 0 -52 20 21 15 55 38.8 20 356 -11 -52 3 11 -52 37 44 -51 50 1 -52 51 25 2.34 155 0 0 -52 40 9 15 55 31.4 20 355 -10 -52 22 51 -52 57 41 -52 9 34 -53 11 28 2.35 156 0 0 -53 0 27 15 55 24.1 19 354 -9 -52 43 1 -53 18 8 -52 29 38 -53 32 2 2.35 157 0 0 -53 21 16 15 55 17.0 19 353 -9 -53 3 41 -53 39 6 -52 50 11 -53 53 8 2.35 158 0 0 -53 42 35 15 55 10.0 18 352 -8 -53 24 50 -54 0 35 -53 11 14 -54 14 44 2.35 159 0 0 -54 4 23 15 55 3.2 18 351 -8 -53 46 29 -54 22 33 -53 32 46 -54 36 51 2.36 160 0 0 -54 26 41 15 54 56.5 18 351 -7 -54 8 37 -54 45 2 -53 54 46 -54 59 27 2.36 161 0 0 -54 49 28 15 54 50.0 17 350 -6 -54 31 14 -55 7 59 -54 17 15 -55 22 34 2.36 162 0 0 -55 12 43 15 54 43.6 17 349 -6 -54 54 18 -55 31 25 -54 40 12 -55 46 9 2.36 163 0 0 -55 36 27 15 54 37.5 16 348 -5 -55 17 51 -55 55 20 -55 3 36 -56 10 13 2.37 164 0 0 -56 0 37 15 54 31.5 16 347 -4 -55 41 50 -56 19 43 -55 27 27 -56 34 45 2.37 165 0 0 -56 25 15 15 54 25.7 15 346 -4 -56 6 16 -56 44 33 -55 51 44 -56 59 45 2.37 166 0 0 -56 50 19 15 54 20.1 15 345 -3 -56 31 8 -57 9 50 -56 16 27 -57 25 13 2.38 167 0 0 -57 15 49 15 54 14.7 14 344 -2 -56 56 26 -57 35 33 -56 41 35 -57 51 6 2.38 168 0 0 -57 41 45 15 54 9.5 13 343 -2 -57 22 8 -58 1 42 -57 7 8 -58 17 26 2.38 169 0 0 -58 8 5 15 54 4.6 13 342 -1 -57 48 15 -58 28 16 -57 33 5 -58 44 12 2.38 170 0 0 -58 34 48 15 53 59.8 12 341 0 -58 14 45 -58 55 14 -57 59 25 -59 11 22 2.39 171 0 0 -59 1 55 15 53 55.3 12 340 0 -58 41 37 -59 22 36 -58 26 7 -59 38 56 2.39 172 0 0 -59 29 25 15 53 51.0 11 339 1 -59 8 52 -59 50 21 -58 53 11 -60 6 54 2.39 173 0 0 -59 57 15 15 53 46.9 10 339 2 -59 36 28 -60 18 28 -59 20 35 -60 35 13 2.40 174 0 0 -60 25 27 15 53 43.1 10 338 2 -60 4 24 -60 46 55 -59 48 20 -61 3 55 2.40 175 0 0 -60 53 58 15 53 39.5 9 337 3 -60 32 39 -61 15 44 -60 16 23 -61 32 57 2.41 176 0 0 -61 22 48 15 53 36.2 9 336 4 -61 1 13 -61 44 51 -60 44 45 -62 2 18 2.41 177 0 0 -61 51 56 15 53 33.1 8 335 4 -61 30 4 -62 14 17 -61 13 24 -62 31 59 2.41 178 0 0 -62 21 20 15 53 30.2 7 334 5 -61 59 11 -62 43 59 -61 42 18 -63 1 57 2.42 179 0 0 -62 51 0 15 53 27.6 7 333 6 -62 28 33 -63 13 58 -62 11 28 -63 32 11 2.43 180 0 0 -63 20 54 15 53 25.3 6 332 6 -62 58 10 -63 44 12 -62 40 51 -64 2 40 2.43 -179 0 0 -63 51 2 15 53 23.2 5 331 7 -63 27 58 -64 14 38 -63 10 26 -64 33 23 2.44 -178 0 0 -64 21 20 15 53 21.3 5 330 8 -63 57 58 -64 45 17 -63 40 13 -65 4 19 2.45 -177 0 0 -64 51 50 15 53 19.7 4 329 8 -64 28 9 -65 16 7 -64 10 9 -65 35 26 2.47 -176 0 0 -65 22 27 15 53 18.4 3 329 9 -64 58 27 -65 47 6 -64 40 13 -66 6 43 2.49 -175 0 0 -65 53 13 15 53 17.3 3 328 10 -65 28 52 -66 18 13 -65 10 24 -66 38 7 2.51 -174 0 0 -66 24 4 15 53 16.4 2 327 10 -65 59 23 -66 49 25 -65 40 40 -67 9 38 2.56 -173 0 0 -66 54 58 15 53 15.8 1 326 11 -66 29 58 -67 20 42 -66 11 0 -67 41 13 2.64 -172 0 0 -67 25 55 15 53 15.4 1 325 11 -67 0 34 -67 52 1 -66 41 22 -68 12 51 2.86 -171 0 0 -67 56 53 15 53 15.3 0 324 12 -67 31 11 .. .. .. -67 11 44 .. .. .. 4.83 -170 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. -67 42 4 .. .. .. .... Uncertainty in time = +/- 5 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: TYC 1397-00593-1 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 09 02 37.3142 DE: +17 44 14.457 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 09 02 37.3144 DE: +17 44 14.457 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 8.7 * B mag [mag]: 8.9 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1491) Balduinus asteroid class: approx. diameter [km]: 22 approx. diameter ["]: 0.016 distance from Earth [AU]: 1.91640 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 date of fit: 2023 Apr 27 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): 0.030", 0.002", 111.234° remarks: * orbital elements for (1491)Balduinus : Mean anomaly = 8.2348757037 deg Arg. of pericenter = 160.2994317127 deg Long. of node = 313.0110817257 deg Inclination = 3.6406651861 deg Eccentricity = 0.1275859528 Semimajor axis = 3.2384780572 AU Perihelion dist = 2.8252937488 AU Mag: H = 11.41, G = 0.15 Epoch of elements : MJD 60316.66533167 TDT (2024 Jan 07.6653) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Apr27,2.55,2024,1,7,15.967959,-0.157527,-0.901944,-4.846166,0.843584,-0.002600,0.000696,0.000001,0.000000 149.7568,17.6419,-57.99,-22.38,False TYC 1397-00593-1,9.04369839,17.7373493,8.87,8.73,8.65,0.1,0,,9.06647245,17.6419229,6.96,6.58,0,0,0 1491,Balduinus,15.68,22.197,1.9164,0,0,-1.556,3.87,,1.8,0 0,8.1224,2024,1,7,160.2994,313.0111,3.6407,0.12759,3.23848,2.82529,11.41,5.0,0.15 1.388,0.0300,0.0019,111,0.0062,Known errors,0.79,0,-1,-1 20240107_0593-1,60137.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org