IOTA/IOTA-ES occultation update for (362) Havnia / 2UCAC 40303327 event on 2007 Sep 01, 16:01 UT Visible from E Russia Summary ------- On 2007 Sep 01 UT, the 90 km diameter asteroid (362) Havnia will occult a 11.7 mag star in the constellation Taurus for observers along a path across E Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.2 mag to 13.8 mag (the magnitude of the asteroid) for at most 5.3 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: 53 * date and approx. time of event: 2007 Sep 01, 15:58 - 2007 Sep 01, 16:04 UT * magnitude of target star: 11.7 * magnitude drop [mag]: 2.2 * estimated maximum duration [s]: 5.3 * Moon: 77 % sunlit, 32° distance * Sun: 91° distance * rough path description: E Russia The occultation path -------------------- * approximate projected width [km]: 181 * 1 sigma uncertainty interval [path widths]: +/- 1.19 * 1 sigma uncertainty interval [seconds]: +/- 4.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .051 +/- .068) * 1 sigma uncertainty ellipse (major, minor, PA): ( .068", .051", 359° ) * approx speed of asteroid's shadow [km/s]: 17.0051 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of 2UCAC 40303327 by 362 Havnia on 2007 Sep 01 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 ... .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 108 13 10 37 39 40 ... .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. 103 27 31 37 8 56 ... .. .. .. .. .. 110 23 48 39 4 15 103 4 49 37 56 39 15 58 11 5 64 -41 ... .. .. .. .. .. 106 32 51 39 0 46 ... .. .. .. .. .. 112 12 12 40 18 18 106 4 47 39 46 36 15 58 16 8 66 -40 102 32 53 38 40 51 108 45 34 40 27 40 ... .. .. .. .. .. 113 46 49 41 25 47 108 14 45 41 12 49 15 58 20 10 67 -39 105 30 9 40 30 13 110 34 12 41 43 7 ... .. .. .. .. .. 115 11 48 42 28 41 110 1 22 42 27 55 15 58 25 12 68 -39 107 38 18 41 56 14 112 8 13 42 51 38 98 42 20 39 5 46 116 29 36 43 28 8 111 33 42 43 36 15 15 58 30 14 70 -38 109 23 22 43 11 16 113 32 11 43 55 22 102 39 11 41 25 32 117 41 48 44 24 55 112 56 9 44 39 53 15 58 35 15 71 -37 110 54 17 44 19 35 114 48 42 44 55 33 105 1 47 43 0 15 118 49 28 45 19 33 114 11 14 45 40 2 15 58 40 16 72 -36 112 15 23 45 23 15 115 59 24 45 53 0 106 52 53 44 19 56 119 53 23 46 12 23 115 20 34 46 37 30 15 58 44 17 73 -35 113 29 9 46 23 28 117 5 24 46 48 15 108 26 28 45 31 18 120 54 8 47 3 43 116 25 15 47 32 47 15 58 49 18 74 -34 114 37 10 47 21 1 118 7 32 47 41 41 109 48 30 46 37 13 121 52 11 47 53 46 117 26 5 48 26 17 15 58 54 19 75 -33 115 40 33 48 16 24 119 6 24 48 33 37 111 2 8 47 39 12 122 47 54 48 42 43 118 23 38 49 18 18 15 58 59 20 76 -33 116 40 2 49 10 2 120 2 27 49 24 15 112 9 18 48 38 13 123 41 33 49 30 42 119 18 22 50 9 3 15 59 4 21 77 -32 117 36 14 50 2 11 120 56 3 50 13 46 113 11 18 49 34 53 124 33 23 50 17 51 120 10 38 50 58 43 15 59 8 21 78 -31 118 29 36 50 53 4 121 47 30 51 2 21 114 8 59 50 29 38 125 23 37 51 4 15 121 0 43 51 47 25 15 59 13 22 79 -30 119 20 27 51 42 53 122 37 2 51 50 4 115 3 1 51 22 48 126 12 24 51 49 59 121 48 52 52 35 19 15 59 18 23 80 -29 120 9 5 52 31 46 123 24 51 52 37 4 115 53 53 52 14 38 126 59 54 52 35 9 122 35 15 53 22 29 15 59 23 23 81 -28 120 55 44 53 19 50 124 11 7 53 23 25 116 41 59 53 5 20 127 46 14 53 19 47 123 20 3 54 9 1 15 59 28 24 82 -28 121 40 35 54 7 12 124 55 59 54 9 11 117 27 35 53 55 4 128 31 30 54 3 57 124 3 24 54 54 59 15 59 32 24 82 -27 122 23 47 54 53 56 125 39 34 54 54 27 118 10 55 54 43 57 129 15 48 54 47 42 124 45 25 55 40 27 15 59 37 25 83 -26 123 5 28 55 40 7 126 21 58 55 39 16 118 52 13 55 32 5 129 59 15 55 31 5 125 26 11 56 25 29 15 59 42 25 84 -25 123 45 44 56 25 49 127 3 16 56 23 40 119 31 35 56 19 35 130 41 53 56 14 9 126 5 48 57 10 8 15 59 47 26 85 -25 124 24 41 57 11 5 127 43 33 57 7 44 120 9 10 57 6 30 131 23 48 56 56 54 126 44 19 57 54 27 15 59 52 26 86 -24 125 2 24 57 55 58 128 22 54 57 51 29 120 45 3 57 52 56 132 5 3 57 39 25 127 21 49 58 38 27 15 59 56 27 87 -23 125 38 55 58 40 32 129 1 22 58 34 57 121 19 20 58 38 55 132 45 42 58 21 41 127 58 21 59 22 11 16 0 1 27 88 -22 126 14 20 59 24 48 129 38 59 59 18 12 121 52 3 59 24 31 133 25 48 59 3 46 128 33 56 60 5 42 16 0 6 27 89 -21 126 48 39 60 8 49 130 15 49 60 1 13 122 23 15 60 9 48 134 5 23 59 45 40 129 8 38 60 49 1 16 0 11 28 90 -21 127 21 55 60 52 36 130 51 54 60 44 4 122 52 59 60 54 46 134 44 32 60 27 26 129 42 28 61 32 11 16 0 16 28 91 -20 127 54 9 61 36 13 131 27 15 61 26 46 123 21 13 61 39 29 135 23 15 61 9 4 130 15 27 62 15 12 16 0 20 28 91 -19 128 25 22 62 19 40 132 1 56 62 9 21 123 48 0 62 23 59 136 1 36 61 50 36 130 47 37 62 58 6 16 0 25 28 92 -18 128 55 36 63 3 0 132 35 56 62 51 50 124 13 17 63 8 18 136 39 37 62 32 4 131 18 57 63 40 55 16 0 30 29 93 -18 129 24 48 63 46 13 133 9 17 63 34 15 124 37 4 63 52 27 137 17 19 63 13 28 131 49 27 64 23 41 16 0 35 29 94 -17 129 52 59 64 29 22 133 42 0 64 16 36 124 59 17 64 36 29 137 54 47 63 54 50 132 19 9 65 6 24 16 0 40 29 95 -16 130 20 9 65 12 28 134 14 5 64 58 56 125 19 53 65 20 25 138 32 0 64 36 11 132 48 0 65 49 7 16 0 44 29 96 -15 130 46 14 65 55 33 134 45 32 65 41 15 125 38 49 66 4 16 139 9 1 65 17 32 133 15 59 66 31 50 16 0 49 29 97 -15 131 11 13 66 38 37 135 16 22 66 23 35 125 55 58 66 48 3 139 45 53 65 58 54 133 43 6 67 14 34 16 0 54 29 98 -14 131 35 2 67 21 42 135 46 34 67 5 58 126 11 13 67 31 49 140 22 37 66 40 19 134 9 16 67 57 21 16 0 59 29 98 -13 131 57 38 68 4 49 136 16 6 67 48 24 126 24 26 68 15 33 140 59 15 67 21 47 134 34 29 68 40 13 16 1 3 29 99 -12 132 18 55 68 47 59 136 44 58 68 30 54 126 35 28 68 59 18 141 35 49 68 3 19 134 58 39 69 23 10 16 1 8 29 100 -12 132 38 49 69 31 15 137 13 8 69 13 30 126 44 6 69 43 4 142 12 21 68 44 58 135 21 42 70 6 14 16 1 13 29 101 -11 132 57 10 70 14 36 137 40 33 69 56 13 126 50 6 70 26 52 142 48 53 69 26 43 135 43 32 70 49 25 16 1 18 29 102 -10 133 13 51 70 58 4 138 7 11 70 39 5 126 53 11 71 10 43 143 25 27 70 8 37 136 4 2 71 32 46 16 1 23 29 102 -10 133 28 41 71 41 40 138 32 57 71 22 6 126 52 59 71 54 38 144 2 5 70 50 39 136 23 4 72 16 17 16 1 27 29 103 -9 133 41 26 72 25 26 138 57 47 72 5 18 126 49 8 72 38 37 144 38 51 71 32 52 136 40 26 72 59 59 16 1 32 29 104 -8 133 51 51 73 9 22 139 21 35 72 48 42 126 41 6 73 22 40 145 15 46 72 15 17 136 55 55 73 43 54 16 1 37 29 104 -7 133 59 37 73 53 29 139 44 12 73 32 19 126 28 18 74 6 47 145 52 53 72 57 54 137 9 16 74 28 3 16 1 42 29 105 -7 134 4 18 74 37 49 140 5 30 74 16 11 126 10 0 74 50 59 146 30 15 73 40 45 137 20 7 75 12 28 16 1 47 29 106 -6 134 5 26 75 22 22 140 25 17 75 0 19 125 45 17 75 35 15 147 7 56 74 23 52 137 28 5 75 57 9 16 1 51 29 106 -5 134 2 24 76 7 9 140 43 18 75 44 45 125 13 2 76 19 32 147 45 59 75 7 16 137 32 35 76 42 7 16 1 56 29 107 -4 133 54 25 76 52 11 140 59 14 76 29 30 124 31 54 77 3 50 148 24 30 75 50 59 137 32 59 77 27 24 16 2 1 28 107 -4 133 40 30 77 37 27 141 12 41 77 14 35 123 40 6 77 48 5 149 3 33 76 35 1 137 28 23 78 13 0 16 2 6 28 107 -3 133 19 21 78 22 59 141 23 8 78 0 3 122 35 27 78 32 14 149 43 14 77 19 25 137 17 37 78 58 57 16 2 11 28 108 -2 132 49 19 79 8 45 141 29 54 78 45 54 121 15 8 79 16 8 150 23 42 78 4 12 136 59 10 79 45 15 16 2 15 28 108 -2 132 8 9 79 54 44 141 32 3 79 32 9 119 35 34 79 59 41 151 5 5 78 49 25 136 30 55 80 31 53 16 2 20 27 108 -1 131 12 53 80 40 53 141 28 21 80 18 52 117 32 3 80 42 37 151 47 36 79 35 4 135 49 58 81 18 51 16 2 25 27 107 0 129 59 20 81 27 8 141 17 4 81 6 2 114 58 36 81 24 40 152 31 30 80 21 14 134 52 9 82 6 6 16 2 30 26 107 1 128 21 41 82 13 22 140 55 44 81 53 40 111 47 31 82 5 23 153 17 9 81 7 55 133 31 22 82 53 34 16 2 35 26 106 1 126 11 33 82 59 21 140 20 40 82 41 46 107 49 7 82 44 7 154 5 1 81 55 10 131 38 22 83 41 6 16 2 39 26 104 2 123 16 35 83 44 46 139 26 16 83 30 20 102 51 55 83 19 58 154 55 48 82 43 3 128 58 34 84 28 25 16 2 44 25 102 3 119 18 23 84 29 2 138 3 31 84 19 16 96 43 47 83 51 42 155 50 34 83 31 35 125 8 3 85 15 2 16 2 49 25 99 3 113 49 28 85 11 11 135 57 5 85 8 27 89 15 7 84 17 36 156 51 0 84 20 51 119 26 25 86 0 1 16 2 54 24 93 4 106 10 31 85 49 33 132 39 3 85 57 32 80 25 25 84 35 40 157 59 59 85 10 53 110 45 15 86 41 26 16 2 59 24 85 5 95 33 55 86 21 19 127 14 9 86 45 46 70 31 19 84 43 42 159 23 0 86 1 44 97 22 2 87 15 30 16 3 3 23 72 6 81 31 11 86 42 16 117 43 47 87 31 14 60 9 50 84 40 0 161 11 45 86 53 29 78 1 30 87 35 27 16 3 8 23 53 6 64 57 10 86 47 31 99 57 23 88 8 50 50 8 52 84 23 51 163 56 57 87 46 8 55 26 8 87 33 36 16 3 13 22 31 7 48 34 58 86 34 28 69 41 11 88 26 3 41 8 50 83 55 37 169 32 41 88 39 29 36 2 53 87 8 58 16 3 18 21 12 8 34 58 53 86 4 39 38 1 24 88 10 16 33 30 38 83 16 25 -165 52 50 89 31 7 22 39 20 86 27 42 16 3 23 20 359 9 24 50 56 85 21 54 18 37 51 87 29 40 27 16 43 82 27 26 - 48 10 20 89 22 33 14 1 59 85 35 53 16 3 27 20 350 9 17 37 55 84 29 36 8 21 11 86 36 56 22 19 0 81 29 31 - 30 55 55 88 26 47 8 28 10 84 36 54 16 3 32 19 345 10 12 32 40 83 29 50 2 38 48 85 37 39 18 25 57 80 22 59 - 26 2 18 87 27 23 4 49 12 83 32 13 16 3 37 18 341 11 8 57 36 82 23 35 - 0 42 0 84 33 40 15 26 28 79 7 28 - 23 23 2 86 25 40 2 24 44 82 22 17 16 3 42 17 339 12 6 26 56 81 11 0 - 2 42 22 83 25 28 13 11 37 77 41 36 - 21 29 44 85 21 36 0 51 12 81 6 52 16 3 47 16 338 12 4 43 49 79 51 37 - 3 52 33 82 12 55 11 35 7 76 2 28 - 19 56 32 84 14 53 - 0 5 18 79 45 13 16 3 51 15 337 13 3 37 33 78 24 8 - 4 28 36 80 55 28 10 34 14 74 3 46 - 18 32 53 83 5 7 - 0 32 53 78 15 52 16 3 56 13 337 14 3 1 51 76 46 12 - 4 39 22 79 32 7 10 13 6 71 28 13 - 17 13 30 81 51 44 - 0 35 47 76 36 20 16 4 1 12 337 15 2 54 21 74 53 16 - 4 29 31 78 1 16 ... .. .. .. .. .. - 15 55 6 80 34 0 - 0 14 38 74 41 57 16 4 6 10 338 15 3 18 5 72 35 7 - 4 0 49 76 20 17 ... .. .. .. .. .. - 14 35 13 79 10 50 0 35 22 72 22 17 16 4 11 8 338 16 4 34 40 69 15 20 - 3 12 0 74 24 18 ... .. .. .. .. .. - 13 11 30 77 40 42 2 19 29 69 0 11 16 4 15 4 340 17 ... .. .. .. .. .. - 1 56 10 72 2 23 ... .. .. .. .. .. - 11 41 1 76 1 4 ... .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. 0 17 22 68 34 17 ... .. .. .. .. .. - 9 59 19 74 7 34 ... .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. - 7 57 25 71 50 44 Data for the target star ------------------------ * name: 2UCAC 40303327 * constellation : Taurus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 04 21 19.7883 DE: +24 01 03.158 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .048, .067 ) * V mag [mag]: 11.7 * B mag [mag]: 0.0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (362) Havnia approx. diameter [km]: 90 approx. diameter ["]: .056 distance from Earth [AU]: 2.23300 * orbital information: orbit source: Preston date of fit: 2007 Aug 28 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 708 number of rejected observations: 120 time covered by the observations: 1903 Sep 15 - 2007 Jul 22 1 sigma uncertainty ellipse (major, minor, PA): 0.018, 0.012, 72° remarks: * orbital elements for (362) Havnia : Mean anomaly = 345.29852971 deg Arg. of pericenter = 32.24228882 deg Long. of node = 27.39943469 deg Inclination = 8.07139939 deg Eccentricity = 0.04417288 Semimajor axis = 2.57889105 AU Perihelion dist = 2.46497400 AU Mag: H = 9.03, G = 0.15 Epoch of elements : MJD 54344.66800000 TDT (2007 Sep 01.668) ------ occelmnt file for Occult BEGIN ----------------------------------- 2007 Sep 01 362 Havnia 16h 1.2m UT 11.7 4 21 19.788 24 1 3.162UCAC 40303327 0.0 13.8 90 5.3 2.233 2.564 13.92 -155.410 24.015 -60.29 8.25 16.0203 -.31939 .80651 8.92345 3.53499 -0.00541 -0.00092 2000 344.1876032007 828.00000 32.242289 27.399435 8.0713990.044172882.578891052.464974009.005 0.15 RATE 2.3798770 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.068 0.051 359.5 2.190 0.066 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2007 Aug 28, 23:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org