IOTA/IOTA-ES occultation update for (276) Adelheid / TYC 0700-01188-1 event on 2023 Oct 07, 14:57 UT Visible from E Australia Summary ------- On 2023 Oct 07 UT, the 123.9 km diameter asteroid (276) Adelheid will occult a 10.2 mag star in the constellation Orion for observers along a path across E Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.75 mag to 13.92 mag (the magnitude of the asteroid) for at most 10.230 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: 2023 Oct 07, 14:51 - 2023 Oct 07, 15:02 * geocentric midpoint of event [JD]: 2460225.12314029 * magnitude of target star: 10.20 * magnitude drop [mag]: 3.75 * estimated maximum duration [s]: 10.230 * Moon: 41 % sunlit, 38° distance * Sun: 111° distance * rough path description: E Australia The occultation path -------------------- * approximate projected width [km]: 217 * 1 sigma uncertainty interval [path widths]: +/- 0.15 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.001", 100°) * approx speed of asteroid's shadow [km/s]: 12.1061 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0700-01188-1 by 276 Adelheid on 2023 Oct 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 ' " Longitude Longitude Longitude Longitude .. .. .. -61 0 0 .. .. .... .. .. .. ... .. .. 130 30 1 ... .. .. 131 54 18 .... 130 17 9 -60 0 0 15 2 17.0 2 69 -25 ... .. .. 134 30 13 ... .. .. 135 36 27 .... 134 8 35 -59 0 0 15 2 15.1 4 66 -26 129 57 34 137 34 9 128 26 37 138 30 21 -1.06 137 6 29 -58 0 0 15 2 12.5 6 63 -26 133 42 6 140 3 53 132 32 50 140 53 31 -1.21 139 31 38 -57 0 0 15 2 9.5 8 61 -27 136 34 59 142 9 51 135 36 56 142 54 43 -1.28 141 33 54 -56 0 0 15 2 6.0 9 60 -28 138 56 11 143 57 58 138 5 16 144 39 13 -1.31 143 18 58 -55 0 0 15 2 2.2 10 58 -29 140 55 13 145 32 3 140 9 21 146 10 25 -1.33 144 50 27 -54 0 0 15 1 58.1 12 57 -30 142 37 33 146 54 42 141 55 28 147 30 43 -1.34 146 10 51 -53 0 0 15 1 53.7 13 56 -30 144 6 40 148 7 50 143 27 35 148 41 52 -1.35 147 21 59 -52 0 0 15 1 49.1 14 55 -31 145 25 0 149 12 50 144 48 21 149 45 11 -1.36 148 25 14 -51 0 0 15 1 44.3 15 55 -32 146 34 18 150 10 50 145 59 41 150 41 44 -1.36 149 21 39 -50 0 0 15 1 39.3 16 54 -32 147 35 54 151 2 43 147 2 59 151 32 21 -1.37 150 12 5 -49 0 0 15 1 34.0 17 54 -33 148 30 49 151 49 10 147 59 22 152 17 41 -1.37 150 57 12 -48 0 0 15 1 28.6 18 53 -34 149 19 52 152 30 46 148 49 42 152 58 18 -1.37 151 37 36 -47 0 0 15 1 23.0 19 53 -35 150 3 43 153 8 2 149 34 40 153 34 40 -1.38 152 13 42 -46 0 0 15 1 17.1 20 53 -35 150 42 54 153 41 21 150 14 51 154 7 12 -1.38 152 45 56 -45 0 0 15 1 11.1 21 52 -36 151 17 53 154 11 4 150 50 43 154 36 12 -1.38 153 14 38 -44 0 0 15 1 5.0 22 52 -37 151 49 3 154 37 30 151 22 40 155 1 59 -1.38 153 40 4 -43 0 0 15 0 58.6 23 52 -38 152 16 43 155 0 53 151 51 3 155 24 47 -1.38 154 2 30 -42 0 0 15 0 52.1 24 52 -38 152 41 9 155 21 27 152 16 8 155 44 49 -1.39 154 22 8 -41 0 0 15 0 45.4 24 52 -39 153 2 37 155 39 24 152 38 10 156 2 16 -1.39 154 39 10 -40 0 0 15 0 38.6 25 53 -40 153 21 18 155 54 53 152 57 23 156 17 18 -1.39 154 53 46 -39 0 0 15 0 31.6 26 53 -41 153 37 24 156 8 4 153 13 57 156 30 4 -1.39 155 6 3 -38 0 0 15 0 24.5 27 53 -41 153 51 3 156 19 4 153 28 2 156 40 42 -1.39 155 16 10 -37 0 0 15 0 17.2 27 53 -42 154 2 25 156 28 0 153 39 47 156 49 18 -1.39 155 24 12 -36 0 0 15 0 9.7 28 54 -43 154 11 35 156 34 59 153 49 19 156 55 58 -1.40 155 30 17 -35 0 0 15 0 2.1 29 54 -44 154 18 42 156 40 5 153 56 44 157 0 47 -1.40 155 34 28 -34 0 0 14 59 54.4 29 54 -45 154 23 49 156 43 23 154 2 9 157 3 50 -1.40 155 36 50 -33 0 0 14 59 46.5 30 55 -46 154 27 1 156 44 58 154 5 37 157 5 11 -1.40 155 37 28 -32 0 0 14 59 38.5 30 55 -46 154 28 24 156 44 52 154 7 14 157 4 53 -1.40 155 36 24 -31 0 0 14 59 30.3 31 56 -47 154 28 0 156 43 9 154 7 3 157 2 58 1.40 155 33 41 -30 0 0 14 59 22.0 31 56 -48 154 25 53 156 39 52 154 5 7 156 59 31 1.41 155 29 21 -29 0 0 14 59 13.6 32 57 -49 154 22 5 156 35 2 154 1 28 156 54 32 1.41 155 23 27 -28 0 0 14 59 5.0 32 58 -50 154 16 38 156 28 42 153 56 10 156 48 5 1.41 155 16 0 -27 0 0 14 58 56.3 33 58 -51 154 9 33 156 20 53 153 49 12 156 40 9 1.41 155 7 1 -26 0 0 14 58 47.5 33 59 -52 154 0 53 156 11 36 153 40 38 156 30 46 1.42 154 56 31 -25 0 0 14 58 38.6 33 60 -52 153 50 38 156 0 51 153 30 27 156 19 57 1.42 154 44 31 -24 0 0 14 58 29.5 34 61 -53 153 38 48 155 48 39 153 18 40 156 7 42 1.42 154 31 0 -23 0 0 14 58 20.3 34 61 -54 153 25 24 155 35 1 153 5 17 155 54 1 1.42 154 15 58 -22 0 0 14 58 11.0 34 62 -55 153 10 25 155 19 56 152 50 19 155 38 55 1.43 153 59 25 -21 0 0 14 58 1.6 34 63 -56 152 53 50 155 3 23 152 33 44 155 22 22 1.43 153 41 19 -20 0 0 14 57 52.1 35 64 -57 152 35 39 154 45 22 152 15 30 155 4 21 1.43 153 21 40 -19 0 0 14 57 42.5 35 65 -58 152 15 49 154 25 51 151 55 38 154 44 53 1.43 153 0 25 -18 0 0 14 57 32.7 35 65 -59 151 54 20 154 4 48 151 34 4 154 23 54 1.44 152 37 33 -17 0 0 14 57 22.9 35 66 -60 151 31 9 153 42 13 151 10 46 154 1 23 1.44 152 13 1 -16 0 0 14 57 12.9 35 67 -61 151 6 12 153 18 1 150 45 41 153 37 17 1.44 151 46 44 -15 0 0 14 57 2.8 35 68 -62 150 39 26 152 52 12 150 18 45 153 11 35 1.44 151 18 41 -14 0 0 14 56 52.6 35 69 -63 150 10 47 152 24 40 149 49 55 152 44 12 1.45 150 48 47 -13 0 0 14 56 42.3 34 70 -64 149 40 11 151 55 22 149 19 5 152 15 4 1.45 150 16 56 -12 0 0 14 56 32.0 34 71 -65 149 7 32 151 24 14 148 46 10 151 44 8 1.45 149 43 2 -11 0 0 14 56 21.5 34 72 -66 148 32 42 150 51 11 148 11 2 151 11 19 1.46 149 7 0 -10 0 0 14 56 10.9 34 72 -68 147 55 35 150 16 5 147 33 34 150 36 29 1.46 148 28 40 - 9 0 0 14 56 0.1 33 73 -69 147 16 2 149 38 51 146 53 36 149 59 33 1.46 147 47 53 - 8 0 0 14 55 49.3 33 74 -70 146 33 50 148 59 19 146 10 57 149 20 22 1.47 147 4 30 - 7 0 0 14 55 38.4 33 75 -71 145 48 49 148 17 20 145 25 24 148 38 47 1.47 146 18 16 - 6 0 0 14 55 27.4 32 76 -72 145 0 44 147 32 45 144 36 42 147 54 39 1.47 145 28 57 - 5 0 0 14 55 16.2 31 77 -74 144 9 16 146 45 19 143 44 31 147 7 44 1.48 144 36 15 - 4 0 0 14 55 5.0 31 77 -75 143 14 3 145 54 47 142 48 28 146 17 47 1.48 143 39 48 - 3 0 0 14 54 53.6 30 78 -77 142 14 40 145 0 49 141 48 5 145 24 31 1.48 142 39 7 - 2 0 0 14 54 42.0 29 79 -78 141 10 31 144 3 4 140 42 46 144 27 34 1.49 141 33 38 - 1 0 0 14 54 30.4 28 80 -80 140 0 54 143 1 3 139 31 44 143 26 28 1.49 140 22 39 - 0 0 0 14 54 18.5 27 80 -81 138 44 51 141 54 11 138 13 56 142 20 43 1.50 139 5 9 1 0 0 14 54 6.5 26 81 -83 137 21 5 140 41 44 136 47 57 141 9 36 1.50 137 39 51 2 0 0 14 53 54.3 25 81 -85 135 47 43 139 22 41 135 11 40 139 52 11 1.51 136 4 50 3 0 0 14 53 41.8 23 82 -86 134 1 55 137 55 42 133 21 49 138 27 14 1.51 134 17 12 4 0 0 14 53 28.9 21 82 -88 131 58 56 136 18 49 131 12 44 136 53 1 1.52 132 12 8 5 0 0 14 53 15.7 20 83 -88 129 29 34 134 29 4 128 32 43 135 6 53 1.54 129 40 16 6 0 0 14 53 1.7 17 83 -86 126 10 29 132 21 28 124 47 24 133 4 36 1.57 126 17 44 7 0 0 14 52 46.4 14 83 -82 118 51 57 129 46 19 ... .. .. 130 38 15 1.63 118 38 32 8 0 0 14 52 24.5 6 82 -75 ... .. .. 126 18 31 ... .. .. 127 29 32 2.32 .. .. .. 9 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 122 19 8 .... Uncertainty in time = +/- 2 secs Prediction of 2023 Aug 27.0 Data for the target star ------------------------ * name: TYC 0700-01188-1 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 28 41.6379 DE: +08 39 18.478 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 28 41.6379 DE: +08 39 18.478 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (276) Adelheid asteroid class: approx. diameter [km]: 124 approx. diameter ["]: 0.069 distance from Earth [AU]: 2.48330 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#73 date of fit: 2023 Aug 23 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): 0.013", 0.001", 100.02° remarks: * orbital elements for (276)Adelheid : Mean anomaly = 314.0887585299 deg Arg. of pericenter = 265.7540811300 deg Long. of node = 210.9851508932 deg Inclination = 21.6660159036 deg Eccentricity = 0.0620990664 Semimajor axis = 3.1192144511 AU Perihelion dist = 2.9255141459 AU Mag: H = 8.62, G = 0.15 Epoch of elements : MJD 60224.62312500 TDT (2023 Oct 07.6231) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#732023Aug23,10.23,2023,10,7,14.955367,-0.730753,-0.374877,3.118782,-6.079781,-0.005430,0.000241,0.000000,0.000000 -157.8317,8.6765,-47.36,-5.56,False TYC 0700-01188-1,5.47823273,8.6551327,0.00,10.20,0.00,0.0,0,,5.49986334,8.6764902,3.75,0.00,0,0,0 276,Adelheid,13.92,123.900,2.4833,0,0,0.745,-21.53,,6.4,0 0,313.9773,2023,10,7,265.7541,210.9852,21.6660,0.06210,3.11921,2.92551,8.62,5.0,0.15 1.151,0.0130,0.0005,100,0.0130,Known errors,-1.00,0,-1,-1 20231007_1188-1,60183.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Aug 26, 23:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org