IOTA/IOTA-ES occultation update for (478) Tergeste / TYC 0766-01093-1 event on 2012 Nov 24, 16:49 UT Visible from E Australia Summary ------- On 2012 Nov 24 UT, the 86 km diameter asteroid (478) Tergeste will occult a 10.9 mag star in the constellation Canis Minor 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 1.8 mag to 12.5 mag (the magnitude of the asteroid) for at most 11.4 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 93 * date and approx. time of event: 2012 Nov 24, 16:37 - 2012 Nov 24, 17:03 UT * geocentric midpoint of event [JD]: 2456256.20087917 * magnitude of target star: 10.9 * magnitude drop [mag]: 1.8 * estimated maximum duration [s]: 11.4 * Moon: 86 % sunlit, 90° distance * Sun: 133° distance * rough path description: E Australia The occultation path -------------------- * approximate projected width [km]: 88 * 1 sigma uncertainty interval [path widths]: +/- 0.47 * 1 sigma uncertainty interval [seconds]: +/- 5.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .027 +/- .029) * 1 sigma uncertainty ellipse (major, minor, PA): ( .029", .027", 3° ) * approx speed of asteroid's shadow [km/s]: 7.4793 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0766-01093-1 by 478 Tergeste on 2012 Nov 24 Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Longitude Longitude Longitude Longitude 87 46 57 -66 0 0 17 3 4 2 59 -3 85 48 16 89 40 20 83 50 59 91 22 46 91 39 26 -65 0 0 17 3 2 4 56 -4 89 55 9 93 20 8 88 13 22 94 51 55 Latitude Latitude Latitude Latitude 92 0 0 -64 54 14 17 3 2 4 56 -4 -64 25 37 -65 22 54 -63 58 47 -65 49 55 93 0 0 -64 36 56 17 3 2 4 55 -5 -64 8 3 -65 5 52 -63 40 58 -65 33 9 94 0 0 -64 18 56 17 3 1 5 54 -5 -63 49 47 -64 48 9 -63 22 27 -65 15 41 95 0 0 -64 0 12 17 3 0 5 53 -5 -63 30 46 -64 29 42 -63 3 10 -64 57 31 96 0 0 -63 40 44 17 3 0 6 52 -6 -63 11 1 -64 10 32 -62 43 8 -64 38 36 97 0 0 -63 20 29 17 2 59 6 51 -6 -62 50 28 -63 50 35 -62 22 19 -64 18 56 98 0 0 -62 59 25 17 2 58 7 50 -6 -62 29 6 -63 29 50 -62 0 40 -63 58 29 99 0 0 -62 37 32 17 2 57 8 49 -7 -62 6 54 -63 8 16 -61 38 10 -63 37 13 100 0 0 -62 14 47 17 2 55 8 48 -7 -61 43 49 -62 45 50 -61 14 47 -63 15 6 101 0 0 -61 51 8 17 2 54 9 47 -8 -61 19 50 -62 22 31 -60 50 30 -62 52 7 102 0 0 -61 26 34 17 2 52 9 47 -8 -60 54 55 -61 58 18 -60 25 16 -62 28 13 103 0 0 -61 1 2 17 2 51 10 46 -8 -60 29 2 -61 33 7 -59 59 3 -62 3 22 104 0 0 -60 34 30 17 2 49 11 45 -9 -60 2 9 -61 6 57 -59 31 50 -61 37 32 105 0 0 -60 6 56 17 2 47 11 44 -9 -59 34 13 -60 39 45 -59 3 34 -61 10 42 106 0 0 -59 38 18 17 2 45 12 43 -10 -59 5 13 -60 11 30 -58 34 13 -60 42 48 107 0 0 -59 8 34 17 2 43 13 42 -10 -58 35 6 -59 42 9 -58 3 45 -60 13 49 108 0 0 -58 37 41 17 2 40 14 41 -11 -58 3 50 -59 11 39 -57 32 7 -59 43 42 109 0 0 -58 5 37 17 2 37 14 41 -11 -57 31 22 -58 39 59 -56 59 17 -59 12 24 110 0 0 -57 32 19 17 2 34 15 40 -12 -56 57 40 -58 7 5 -56 25 13 -58 39 54 111 0 0 -56 57 45 17 2 31 16 39 -12 -56 22 42 -57 32 56 -55 49 52 -58 6 8 112 0 0 -56 21 52 17 2 28 17 38 -13 -55 46 25 -56 57 28 -55 13 12 -57 31 4 113 0 0 -55 44 39 17 2 24 17 37 -13 -55 8 46 -56 20 40 -54 35 11 -56 54 39 114 0 0 -55 6 1 17 2 20 18 36 -14 -54 29 44 -55 42 28 -53 55 45 -56 16 52 115 0 0 -54 25 58 17 2 16 19 36 -14 -53 49 15 -55 2 50 -53 14 53 -55 37 38 116 0 0 -53 44 25 17 2 11 20 35 -15 -53 7 17 -54 21 43 -52 32 32 -54 56 56 117 0 0 -53 1 22 17 2 6 21 34 -15 -52 23 48 -53 39 5 -51 48 39 -54 14 42 118 0 0 -52 16 44 17 2 1 22 33 -16 -51 38 46 -52 54 53 -51 3 13 -53 30 55 119 0 0 -51 30 31 17 1 55 23 32 -16 -50 52 8 -52 9 6 -50 16 12 -52 45 32 120 0 0 -50 42 40 17 1 49 24 31 -17 -50 3 51 -51 21 40 -49 27 33 -51 58 30 121 0 0 -49 53 9 17 1 43 25 31 -17 -49 13 55 -50 32 34 -48 37 14 -51 9 48 122 0 0 -49 1 55 17 1 36 26 30 -18 -48 22 18 -49 41 45 -47 45 14 -50 19 23 123 0 0 -48 8 58 17 1 28 27 29 -19 -47 28 57 -48 49 12 -46 51 32 -49 27 14 124 0 0 -47 14 17 17 1 20 28 28 -19 -46 33 52 -47 54 54 -45 56 5 -48 33 18 125 0 0 -46 17 49 17 1 12 29 28 -20 -45 37 2 -46 58 49 -44 58 54 -47 37 35 126 0 0 -45 19 34 17 1 3 31 27 -20 -44 38 26 -46 0 56 -43 59 58 -46 40 3 127 0 0 -44 19 32 17 0 54 32 26 -21 -43 38 3 -45 1 15 -42 59 16 -45 40 43 128 0 0 -43 17 42 17 0 43 33 25 -22 -42 35 53 -43 59 46 -41 56 49 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16 57 14 53 13 -30 -25 18 22 -26 46 23 -24 37 23 -27 28 11 143 0 0 -24 38 47 16 56 54 54 12 -30 -23 54 58 -25 22 53 -23 14 2 -26 4 36 144 0 0 -23 14 35 16 56 34 56 11 -30 -22 30 51 -23 58 35 -21 50 0 -24 40 14 145 0 0 -21 49 45 16 56 13 57 10 -31 -21 6 8 -22 33 38 -20 25 23 -23 15 10 146 0 0 -20 24 24 16 55 52 59 9 -31 -19 40 55 -21 8 9 -19 0 18 -21 49 32 147 0 0 -18 58 39 16 55 30 60 7 -31 -18 15 20 -19 42 15 -17 34 52 -20 23 29 148 0 0 -17 32 39 16 55 8 62 6 -32 -16 49 30 -18 16 3 -16 9 11 -18 57 6 149 0 0 -16 6 28 16 54 45 63 4 -32 -15 23 32 -16 49 40 -14 43 24 -17 30 31 150 0 0 -14 40 16 16 54 22 65 2 -32 -13 57 33 -15 23 14 -13 17 37 -16 3 52 151 0 0 -13 14 9 16 53 59 66 360 -32 -12 31 40 -13 56 52 -11 51 57 -14 37 16 152 0 0 -11 48 13 16 53 35 68 358 -32 -11 6 0 -12 30 41 -10 26 31 -13 10 50 153 0 0 -10 22 36 16 53 11 69 355 -32 - 9 40 38 -11 4 47 - 9 1 24 -11 44 40 154 0 0 - 8 57 23 16 52 48 70 352 -32 - 8 15 42 - 9 39 17 - 7 36 44 -10 18 53 155 0 0 - 7 32 41 16 52 24 72 349 -32 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46 4 9 23 44 170 0 0 11 43 37 16 46 38 73 268 -27 12 19 53 11 7 13 12 53 52 10 32 54 171 0 0 12 50 40 16 46 17 72 265 -27 13 26 35 12 14 39 14 0 15 11 40 40 172 0 0 13 56 19 16 45 56 71 262 -26 14 31 52 13 20 38 15 5 12 12 47 0 173 0 0 15 0 31 16 45 37 70 259 -26 15 35 44 14 25 12 16 8 44 13 51 53 174 0 0 16 3 17 16 45 17 69 257 -25 16 38 9 15 28 18 17 10 50 14 55 20 175 0 0 17 4 36 16 44 58 68 256 -25 17 39 8 16 29 58 18 11 30 15 57 19 176 0 0 18 4 29 16 44 39 67 254 -24 18 38 40 17 30 11 19 10 43 16 57 52 177 0 0 19 2 55 16 44 21 66 253 -23 19 36 46 18 28 58 20 8 30 17 56 58 178 0 0 19 59 54 16 44 3 65 252 -23 20 33 26 19 26 18 21 4 52 18 54 37 179 0 0 20 55 29 16 43 46 63 251 -22 21 28 40 20 22 12 21 59 48 19 50 50 180 0 0 21 49 38 16 43 29 62 250 -22 22 22 30 21 16 40 22 53 20 20 45 37 -179 0 0 22 42 22 16 43 12 61 250 -21 23 14 56 22 9 44 23 45 28 21 38 59 -178 0 0 23 33 44 16 42 56 60 249 -20 24 5 58 23 1 24 24 36 12 22 30 57 -177 0 0 24 23 42 16 42 41 59 249 -20 24 55 38 23 51 41 25 25 35 23 21 31 -176 0 0 25 12 19 16 42 25 58 248 -19 25 43 56 24 40 36 26 13 37 24 10 44 -175 0 0 25 59 35 16 42 11 57 248 -19 26 30 55 25 28 10 27 0 18 24 58 35 -174 0 0 26 45 31 16 41 56 56 248 -18 27 16 34 26 14 24 27 45 41 25 45 5 -173 0 0 27 30 9 16 41 42 55 248 -17 28 0 54 26 59 20 28 29 45 26 30 17 -172 0 0 28 13 30 16 41 28 54 248 -17 28 43 58 27 42 57 29 12 34 27 14 11 -171 0 0 28 55 35 16 41 15 53 248 -16 29 25 47 28 25 19 29 54 7 27 56 48 -170 0 0 29 36 25 16 41 2 52 248 -15 30 6 21 29 6 25 30 34 26 28 38 10 -169 0 0 30 16 2 16 40 50 51 248 -15 30 45 42 29 46 18 31 13 32 29 18 18 -168 0 0 30 54 27 16 40 38 50 248 -14 31 23 51 30 24 58 31 51 27 29 57 13 -167 0 0 31 31 41 16 40 26 49 248 -14 32 0 50 31 2 28 32 28 12 30 34 56 -166 0 0 32 7 45 16 40 14 48 249 -13 32 36 40 31 38 47 33 3 48 31 11 29 -165 0 0 32 42 41 16 40 3 47 249 -12 33 11 22 32 13 58 33 38 16 31 46 54 -164 0 0 33 16 31 16 39 53 46 249 -12 33 44 57 32 48 1 34 11 39 32 21 11 -163 0 0 33 49 15 16 39 42 45 249 -11 34 17 28 33 20 59 34 43 56 32 54 21 -162 0 0 34 20 54 16 39 32 44 250 -11 34 48 54 33 52 51 35 15 10 33 26 26 -161 0 0 34 51 31 16 39 22 43 250 -10 35 19 18 34 23 41 35 45 22 33 57 28 -160 0 0 35 21 6 16 39 13 42 250 -9 35 48 40 34 53 28 36 14 32 34 27 27 -159 0 0 35 49 40 16 39 3 41 251 -9 36 17 2 35 22 15 36 42 43 34 56 25 -158 0 0 36 17 15 16 38 54 40 251 -8 36 44 25 35 50 1 37 9 55 35 24 23 -157 0 0 36 43 51 16 38 46 39 252 -8 37 10 50 36 16 49 37 36 9 35 51 22 -156 0 0 37 9 30 16 38 37 38 252 -7 37 36 18 36 42 40 38 1 27 36 17 23 -155 0 0 37 34 14 16 38 29 38 253 -6 38 0 51 37 7 34 38 25 50 36 42 27 -154 0 0 37 58 3 16 38 21 37 253 -6 38 24 29 37 31 33 38 49 18 37 6 36 -153 0 0 38 20 57 16 38 13 36 253 -5 38 47 14 37 54 38 39 11 53 37 29 51 -152 0 0 38 42 59 16 38 6 35 254 -5 39 9 6 38 16 49 39 33 37 37 52 11 -151 0 0 39 4 9 16 37 59 34 254 -4 39 30 7 38 38 9 39 54 29 38 13 40 -150 0 0 39 24 28 16 37 52 33 255 -4 39 50 17 38 58 37 40 14 30 38 34 16 -149 0 0 39 43 57 16 37 45 33 256 -3 40 9 37 39 18 15 40 33 43 38 54 2 -148 0 0 40 2 37 16 37 38 32 256 -3 40 28 9 39 37 3 40 52 7 39 12 59 -147 0 0 40 20 29 16 37 32 31 257 -2 40 45 53 39 55 3 41 9 43 39 31 6 -146 0 0 40 37 33 16 37 26 30 257 -1 41 2 49 40 12 15 41 26 32 39 48 25 -145 0 0 40 53 51 16 37 20 29 258 -1 41 19 0 40 28 40 41 42 36 40 4 57 -144 0 0 41 9 23 16 37 14 29 258 0 41 34 25 40 44 19 41 57 54 40 20 42 Uncertainty in time = +/- 6 secs Prediction of 2012 Nov 16.0 Data for the target star ------------------------ * name: TYC 0766-01093-1 * constellation : Canis Minor * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 07 13 16.8407 DE: +10 29 58.360 * position source: mpos:UCAC4 pm:UCAC4 * standard error: RA,DE ["]: ( .017, .027 ) * V mag [mag]: 10.9 * B mag [mag]: 11.2 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (478) Tergeste approx. diameter [km]: 86 approx. diameter ["]: .059 distance from Earth [AU]: 2.00400 * orbital information: orbit source: Preston date of fit: 2012 Nov 16 source of used astrometry: FASTT TMO MPC (via Astdys) number of used observations: 1060 number of rejected observations: 85 time covered by the observations: 1901 Sep 22 - 2012 Nov 08 1 sigma uncertainty ellipse (major, minor, PA): 0.021, 0.012, 105° remarks: * orbital elements for (478) Tergeste : Mean anomaly = 344.07350419 deg Arg. of pericenter = 239.18298184 deg Long. of node = 233.93741185 deg Inclination = 13.18627858 deg Eccentricity = 0.08502941 Semimajor axis = 3.01824768 AU Perihelion dist = 2.76160785 AU Mag: H = 7.93, G = 0.15 Epoch of elements : MJD 56255.70100000 TDT (2012 Nov 24.701) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 24 478 Tergeste 16h 49.3m UT 10.9 7 13 16.841 10 29 58.36TYC 0766-01093-1 11.2 12.5 86 11.4 2.004 -0.703 -15.37 151.9573 10.504 -75.59 -20.72 16.8211 0.18581 -0.12562 -2.35705 -3.50224 -0.00406 0.00137 2000 343.00192820121119.00000239.182982233.937412 13.1862790.08502941 3.0182477 2.7616079 8.0 5.00.15 RATE 1.8796280 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.029 0.027 3 1.47 0.028 0 0-3 0 056247.0020121124_1093-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Nov 16, 08:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org