IOTA/IOTA-ES occultation update for (2929) Harris / TYC 0174-01078-1 event on 2008 Dec 02, 05:36 UT Visible from N Scandanavia, N Canada Summary ------- On 2008 Dec 02 UT, the 26 km diameter asteroid (2929) Harris will occult a 10.3 mag star in the constellation Monoceros for observers along a path across N Scandanavia, N Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 6.2 mag to 16.5 mag (the magnitude of the asteroid) for at most 3.3 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 18 * date and approx. time of event: 2008 Dec 02, 05:31 - 2008 Dec 02, 05:41 UT * magnitude of target star: 10.3 * magnitude drop [mag]: 6.2 * estimated maximum duration [s]: 3.3 * Moon: 17 % sunlit, 159° distance * Sun: 142° distance * rough path description: N Scandanavia, N Canada The occultation path -------------------- * approximate projected width [km]: 63 * 1 sigma uncertainty interval [path widths]: +/- 3.68 * 1 sigma uncertainty interval [seconds]: +/- 16.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .086 +/- .059) * 1 sigma uncertainty ellipse (major, minor, PA): ( .086", .058", 83° ) * approx speed of asteroid's shadow [km/s]: 8.1180 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0174-01078-1 by 2929 Harris on 2008 Dec 2 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 E. Longitude Latitude U.T. Alt Az Alt o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude 45 19 23 66 33 45 5 31 26 5 277 -6 42 27 33 66 37 28 49 4 53 66 23 7 29 21 3 66 6 20 ... .. .. .. .. .. 39 33 56 67 16 39 5 31 34 7 271 -8 37 26 36 67 14 19 41 58 15 67 16 54 26 12 7 66 27 27 ... .. .. .. .. .. 35 7 1 67 48 47 5 31 42 9 267 -10 33 19 58 67 43 36 37 3 50 67 52 51 23 16 36 66 46 29 ... .. .. .. .. .. 31 17 38 68 15 33 5 31 50 10 264 -11 29 43 1 68 8 34 32 59 9 68 21 48 20 31 11 67 3 53 ... .. .. .. .. .. 27 51 10 68 38 52 5 31 59 11 260 -12 26 25 17 68 30 36 29 22 26 68 46 38 17 53 41 67 19 55 45 44 5 69 8 54 24 40 22 68 59 44 5 32 7 12 257 -13 23 21 9 68 50 28 26 4 4 69 8 37 15 22 34 67 34 50 39 59 5 69 51 53 21 41 2 69 18 41 5 32 15 13 255 -15 20 27 12 69 8 36 22 58 47 69 28 29 12 56 41 67 48 45 35 25 2 70 24 53 18 50 30 69 36 6 5 32 23 14 252 -16 17 41 10 69 25 20 20 3 18 69 46 39 10 35 11 68 1 48 31 26 22 70 52 38 16 6 54 69 52 13 5 32 32 15 249 -17 15 1 28 69 40 51 17 15 30 70 3 25 8 17 24 68 14 3 27 49 32 71 16 57 13 28 55 70 7 13 5 32 40 16 247 -17 12 26 56 69 55 20 14 33 49 70 18 59 6 2 48 68 25 37 24 27 40 71 38 46 10 55 34 70 21 15 5 32 48 16 244 -18 9 56 42 70 8 54 11 57 7 70 33 30 3 50 56 68 36 31 21 16 43 71 58 37 8 26 4 70 34 23 5 32 56 17 242 -19 7 30 4 70 21 37 9 24 35 70 47 6 1 41 28 68 46 49 18 14 3 72 16 53 5 59 49 70 46 44 5 33 5 18 239 -20 5 6 29 70 33 35 6 55 31 70 59 52 - 0 25 54 68 56 33 15 17 53 72 33 46 3 36 20 70 58 22 5 33 13 18 237 -21 2 45 31 70 44 51 4 29 23 71 11 51 - 2 31 26 69 5 45 12 26 52 72 49 30 1 15 14 71 9 18 5 33 21 19 234 -22 0 26 49 70 55 28 2 5 46 71 23 8 - 4 35 20 69 14 27 9 40 3 73 4 10 - 1 3 50 71 19 36 5 33 29 19 232 -22 - 1 49 56 71 5 28 - 0 15 42 71 33 46 - 6 37 47 69 22 40 6 56 39 73 17 53 - 3 21 7 71 29 18 5 33 38 20 230 -23 - 4 5 0 71 14 54 - 2 35 19 71 43 46 - 8 38 58 69 30 26 4 16 5 73 30 45 - 5 36 52 71 38 27 5 33 46 20 227 -24 - 6 18 35 71 23 46 - 4 53 19 71 53 10 - 10 39 0 69 37 46 1 37 52 73 42 48 - 7 51 17 71 47 2 5 33 54 20 225 -24 - 8 30 52 71 32 7 - 7 9 56 72 2 1 - 12 38 0 69 44 40 - 0 58 24 73 54 6 - 10 4 30 71 55 6 5 34 2 21 223 -25 - 10 42 1 71 39 58 - 9 25 20 72 10 20 - 14 36 5 69 51 10 - 3 33 2 74 4 41 - 12 16 43 72 2 41 5 34 11 21 220 -26 - 12 52 11 71 47 19 - 11 39 40 72 18 7 - 16 33 21 69 57 16 - 6 6 18 74 14 36 - 14 28 1 72 9 45 5 34 19 21 218 -26 - 15 1 27 71 54 12 - 13 53 5 72 25 25 - 18 29 52 70 2 58 - 8 38 25 74 23 51 - 16 38 32 72 16 22 5 34 27 22 216 -27 - 17 9 57 72 0 38 - 16 5 42 72 32 13 - 20 25 44 70 8 18 - 11 9 36 74 32 29 - 18 48 21 72 22 31 5 34 35 22 214 -28 - 19 17 47 72 6 37 - 18 17 36 72 38 33 - 22 21 0 70 13 16 - 13 39 58 74 40 31 - 20 57 33 72 28 13 5 34 44 22 211 -28 - 21 25 0 72 12 9 - 20 28 53 72 44 25 - 24 15 45 70 17 52 - 16 9 41 74 47 57 - 23 6 14 72 33 28 5 34 52 23 209 -29 - 23 31 41 72 17 16 - 22 39 37 72 49 49 - 26 10 0 70 22 7 - 18 38 51 74 54 49 - 25 14 26 72 38 18 5 35 0 23 207 -29 - 25 37 54 72 21 58 - 24 49 53 72 54 47 - 28 3 50 70 26 1 - 21 7 34 75 1 7 - 27 22 13 72 42 42 5 35 8 23 204 -30 - 27 43 43 72 26 14 - 26 59 44 72 59 19 - 29 57 17 70 29 34 - 23 35 54 75 6 51 - 29 29 39 72 46 40 5 35 17 23 202 -30 - 29 49 10 72 30 6 - 29 9 14 73 3 24 - 31 50 24 70 32 46 - 26 3 55 75 12 3 - 31 36 45 72 50 14 5 35 25 23 200 -31 - 31 54 18 72 33 34 - 31 18 24 73 7 4 - 33 43 12 70 35 39 - 28 31 41 75 16 43 - 33 43 35 72 53 23 5 35 33 24 198 -31 - 33 59 9 72 36 38 - 33 27 18 73 10 19 - 35 35 44 70 38 11 - 30 59 14 75 20 50 - 35 50 11 72 56 8 5 35 41 24 195 -32 - 36 3 46 72 39 18 - 35 35 58 73 13 8 - 37 28 2 70 40 24 - 33 26 36 75 24 26 - 37 56 34 72 58 28 5 35 50 24 193 -32 - 38 8 10 72 41 34 - 37 44 25 73 15 33 - 39 20 7 70 42 17 - 35 53 49 75 27 30 - 40 2 46 73 0 24 5 35 58 24 191 -33 - 40 12 24 72 43 27 - 39 52 42 73 17 33 - 41 12 2 70 43 50 - 38 20 55 75 30 3 - 42 8 49 73 1 57 5 36 6 24 189 -33 - 42 16 28 72 44 57 - 42 0 49 73 19 8 - 43 3 48 70 45 4 - 40 47 55 75 32 5 - 44 14 45 73 3 5 5 36 14 24 186 -34 - 44 20 24 72 46 4 - 44 8 49 73 20 19 - 44 55 27 70 45 58 - 43 14 48 75 33 36 - 46 20 34 73 3 50 5 36 23 24 184 -34 - 46 24 14 72 46 47 - 46 16 43 73 21 5 - 46 47 0 70 46 34 - 45 41 36 75 34 37 - 48 26 18 73 4 12 5 36 31 24 182 -35 - 48 27 59 72 47 8 - 48 24 31 73 21 27 - 48 38 28 70 46 50 - 48 8 20 75 35 6 - 50 31 58 73 4 9 5 36 39 24 180 -35 - 50 31 41 72 47 5 - 50 32 16 73 21 25 - 50 29 53 70 46 47 - 50 34 59 75 35 5 - 52 37 36 73 3 43 5 36 47 24 177 -36 - 52 35 20 72 46 40 - 52 39 58 73 20 58 - 52 21 16 70 46 25 - 53 1 34 75 34 34 - 54 43 12 73 2 54 5 36 56 24 175 -36 - 54 38 58 72 45 51 - 54 47 39 73 20 7 - 54 12 39 70 45 43 - 55 28 6 75 33 31 - 56 48 49 73 1 41 5 37 4 24 173 -36 - 56 42 36 72 44 40 - 56 55 19 73 18 53 - 56 4 3 70 44 43 - 57 54 34 75 31 59 - 58 54 27 73 0 4 5 37 12 24 171 -37 - 58 46 16 72 43 6 - 59 3 1 73 17 13 - 57 55 29 70 43 23 - 60 20 59 75 29 55 - 61 0 8 72 58 4 5 37 20 24 169 -37 - 60 49 59 72 41 9 - 61 10 45 73 15 10 - 59 47 0 70 41 44 - 62 47 22 75 27 21 - 63 5 53 72 55 40 5 37 29 24 166 -37 - 62 53 46 72 38 48 - 63 18 33 73 12 42 - 61 38 36 70 39 46 - 65 13 45 75 24 16 - 65 11 44 72 52 52 5 37 37 24 164 -38 - 64 57 40 72 36 5 - 65 26 26 73 9 49 - 63 30 20 70 37 28 - 67 40 7 75 20 41 - 67 17 42 72 49 40 5 37 45 24 162 -38 - 67 1 41 72 32 58 - 67 34 27 73 6 32 - 65 22 12 70 34 51 - 70 6 31 75 16 34 - 69 23 51 72 46 4 5 37 53 23 160 -38 - 69 5 53 72 29 27 - 69 42 38 73 2 50 - 67 14 16 70 31 54 - 72 32 58 75 11 56 - 71 30 11 72 42 3 5 38 2 23 157 -39 - 71 10 17 72 25 33 - 71 50 59 72 58 43 - 69 6 32 70 28 37 - 74 59 31 75 6 47 - 73 36 46 72 37 38 5 38 10 23 155 -39 - 73 14 55 72 21 15 - 73 59 36 72 54 11 - 70 59 3 70 25 1 - 77 26 12 75 1 6 - 75 43 38 72 32 49 5 38 18 23 153 -39 - 75 19 51 72 16 33 - 76 8 29 72 49 13 - 72 51 51 70 21 4 - 79 53 6 74 54 53 - 77 50 50 72 27 34 5 38 26 23 151 -39 - 77 25 7 72 11 26 - 78 17 42 72 43 50 - 74 44 59 70 16 47 - 82 20 16 74 48 7 - 79 58 26 72 21 53 5 38 35 22 148 -39 - 79 30 47 72 5 55 - 80 27 19 72 38 0 - 76 38 30 70 12 9 - 84 47 47 74 40 48 - 82 6 30 72 15 47 5 38 43 22 146 -40 - 81 36 55 71 59 58 - 82 37 24 72 31 43 - 78 32 26 70 7 10 - 87 15 45 74 32 56 - 84 15 7 72 9 14 5 38 51 22 144 -40 - 83 43 35 71 53 36 - 84 48 2 72 25 0 - 80 26 51 70 1 50 - 89 44 18 74 24 29 - 86 24 21 72 2 14 5 38 59 22 142 -40 - 85 50 51 71 46 47 - 86 59 18 72 17 48 - 82 21 48 69 56 8 - 92 13 32 74 15 27 - 88 34 18 71 54 47 5 39 8 21 139 -40 - 87 58 50 71 39 31 - 89 11 18 72 10 8 - 84 17 22 69 50 4 - 94 43 38 74 5 48 - 90 45 5 71 46 51 5 39 16 21 137 -40 - 90 7 38 71 31 48 - 91 24 10 72 1 59 - 86 13 37 69 43 37 - 97 14 47 73 55 32 - 92 56 49 71 38 25 5 39 24 20 135 -40 - 92 17 21 71 23 36 - 93 38 0 71 53 19 - 88 10 38 69 36 47 - 99 47 12 73 44 36 - 95 9 40 71 29 29 5 39 32 20 132 -40 - 94 28 9 71 14 54 - 95 52 59 71 44 7 - 90 8 31 69 29 32 -102 21 10 73 32 58 - 97 23 47 71 20 1 5 39 41 20 130 -40 - 96 40 10 71 5 42 - 98 9 17 71 34 23 - 92 7 22 69 21 53 -104 56 58 73 20 37 - 99 39 22 71 10 0 5 39 49 19 128 -40 - 98 53 35 70 55 58 -100 27 7 71 24 4 - 94 7 18 69 13 48 -107 35 2 73 7 29 -101 56 38 70 59 24 5 39 57 19 126 -40 -101 8 38 70 45 40 -102 46 43 71 13 9 - 96 8 29 69 5 16 -110 15 47 72 53 31 -104 15 52 70 48 11 5 40 6 18 123 -40 -103 25 33 70 34 46 -105 8 23 71 1 36 - 98 11 2 68 56 16 -112 59 51 72 38 38 -106 37 23 70 36 19 5 40 14 18 121 -40 -105 44 38 70 23 14 -107 32 28 70 49 21 -100 15 9 68 46 47 -115 47 55 72 22 44 -109 1 35 70 23 43 5 40 22 17 118 -40 -108 6 14 70 11 1 -109 59 23 70 36 22 -102 21 3 68 36 47 -118 40 59 72 5 42 -111 28 55 70 10 22 5 40 30 16 116 -40 -110 30 47 69 58 5 -112 29 39 70 22 33 -104 28 58 68 26 13 -121 40 16 71 47 21 -113 59 58 69 56 9 5 40 39 16 113 -40 -112 58 49 69 44 19 -115 3 55 70 7 51 -106 39 12 68 15 5 -124 47 30 71 27 28 -116 35 29 69 40 59 5 40 47 15 111 -39 -115 31 0 69 29 40 -117 43 1 69 52 8 -108 52 5 68 3 18 -128 5 10 71 5 43 -119 16 25 69 24 45 5 40 55 14 108 -39 -118 8 11 69 14 1 -120 28 0 69 35 16 -111 8 3 67 50 50 -131 37 3 70 41 35 -122 4 2 69 7 16 5 41 3 13 106 -39 -120 51 28 68 57 11 -123 20 22 69 17 3 -113 27 37 67 37 36 -135 29 29 70 14 13 -125 0 5 68 48 17 5 41 12 13 103 -38 -123 42 22 68 39 0 -126 22 9 68 57 13 -115 51 26 67 23 32 -139 54 38 69 41 58 -128 7 7 68 27 29 5 41 20 11 100 -37 -126 43 1 68 19 10 -129 36 25 68 35 20 -118 20 19 67 8 30 -145 22 49 69 0 50 -131 29 3 68 4 21 5 41 28 10 97 -37 -129 56 39 67 57 15 -133 8 1 68 10 46 -120 55 21 66 52 21 -154 54 36 67 46 59 -135 12 32 67 37 58 5 41 36 9 93 -36 -133 28 26 67 32 34 -137 5 46 67 42 20 -123 38 0 66 34 55 ... .. .. .. .. .. -139 30 40 67 6 37 5 41 45 7 89 -35 -137 27 54 67 3 50 -141 48 46 67 7 31 -126 30 22 66 15 54 ... .. .. .. .. .. -144 58 1 66 25 44 5 41 53 5 84 -33 -142 16 33 66 28 14 -148 21 53 66 17 47 -129 35 32 65 54 54 ... .. .. .. .. .. Uncertainty in time = +/- 17 secs [Prediction of 2008 Nov 26.0] Data for the target star ------------------------ * name: TYC 0174-01078-1 * constellation : Monoceros * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 07 00 45.5106 DE: +07 06 47.960 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .021, .020 ) * V mag [mag]: 10.3 * B mag [mag]: 10.3 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2929) Harris approx. diameter [km]: 26 approx. diameter ["]: .016 distance from Earth [AU]: 2.21800 * orbital information: orbit source: Preston date of fit: 2008 Oct 29 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 724 number of rejected observations: 23 time covered by the observations: 1938 Feb 19 - 2008 Feb 13 1 sigma uncertainty ellipse (major, minor, PA): 0.084, 0.055, 83° remarks: * orbital elements for (2929) Harris : Mean anomaly = 291.99189587 deg Arg. of pericenter = 26.59830041 deg Long. of node = 142.80125337 deg Inclination = 14.88024737 deg Eccentricity = 0.07017242 Semimajor axis = 3.12169958 AU Perihelion dist = 2.90264238 AU Mag: H = 11.59, G = 0.15 Epoch of elements : MJD 54802.23400000 TDT (2008 Dec 02.234) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 Dec 2 2929 Harris 5h 36.7m UT 10.3 7 0 45.511 7 6 47.96TYC 0174-01078-1 10.3 16.5 26 3.3 2.218 -1.222 -0.03 -50.4139 7.114 93.21 -22.01 5.6109 -0.00126 0.90975 -4.58200 -0.00979 -0.00330 0.00168 2000 291.59268720081130.00000 26.598300142.801253 14.8802470.07017242 3.1216996 2.902642411.6 5.00.15 RATE 1.7869700 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.086 0.058 83 4.68 0.059 0 54796.5020081202_1078-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 26, 23:28 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org