IOTA/IOTA-ES occultation update for (2140) Kemerovo / TYC 4923-00196-1 event on 2024 Nov 15, 19:38 UT Visible from Summary ------- On 2024 Nov 15 UT, the 32.609 km diameter asteroid (2140) Kemerovo will occult a 11.1 mag star in the constellation Leo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.46 mag to 17.51 mag (the magnitude of the asteroid) for at most 1.080 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: 2024 Nov 15, 19:34 - 2024 Nov 15, 19:41 * geocentric midpoint of event [JD]: 2460630.31806412 * magnitude of target star: 11.05 * magnitude drop [mag]: 6.46 * estimated maximum duration [s]: 1.080 * Moon: 100 % sunlit, 119° distance * Sun: 61° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 34 * 1 sigma uncertainty interval [path widths]: +/- 0.29 * 1 sigma uncertainty interval [seconds]: +/- 1.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.004", 116°) * approx speed of asteroid's shadow [km/s]: 30.2029 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4923-00196-1 by 2140 Kemerovo on 2024 Nov 15 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 93 0 0 14 1 15 19 34 36.8 0 92 -60 13 52 5 14 10 25 13 46 52 14 15 38 .... 94 0 0 13 58 32 19 34 36.9 1 93 -59 13 49 22 14 7 42 13 44 8 14 12 55 0.17 95 0 0 13 55 18 19 34 37.0 2 93 -58 13 46 7 14 4 28 13 40 54 14 9 41 0.22 96 0 0 13 51 33 19 34 37.1 3 93 -58 13 42 22 14 0 43 13 37 8 14 5 57 0.24 97 0 0 13 47 16 19 34 37.4 4 93 -57 13 38 5 13 56 27 13 32 51 14 1 41 0.25 98 0 0 13 42 29 19 34 37.7 5 94 -56 13 33 17 13 51 40 13 28 3 13 56 54 0.25 99 0 0 13 37 10 19 34 38.0 6 94 -55 13 27 58 13 46 22 13 22 43 13 51 36 0.26 100 0 0 13 31 20 19 34 38.4 7 94 -54 13 22 7 13 40 32 13 16 52 13 45 47 0.26 101 0 0 13 24 59 19 34 38.9 8 94 -53 13 15 45 13 34 12 13 10 30 13 39 26 0.26 102 0 0 13 18 6 19 34 39.5 9 94 -52 13 8 52 13 27 20 13 3 37 13 32 35 0.26 103 0 0 13 10 42 19 34 40.1 10 95 -51 13 1 28 13 19 57 12 56 12 13 25 12 0.26 104 0 0 13 2 47 19 34 40.8 11 95 -50 12 53 32 13 12 2 12 48 16 13 17 18 0.26 105 0 0 12 54 21 19 34 41.5 12 95 -49 12 45 5 13 3 36 12 39 48 13 8 52 0.27 106 0 0 12 45 23 19 34 42.3 13 95 -48 12 36 6 12 54 39 12 30 49 12 59 55 0.27 107 0 0 12 35 53 19 34 43.2 14 96 -47 12 26 36 12 45 10 12 21 18 12 50 27 0.27 108 0 0 12 25 52 19 34 44.1 15 96 -46 12 16 34 12 35 10 12 11 16 12 40 27 0.27 109 0 0 12 15 20 19 34 45.1 16 96 -45 12 6 0 12 24 38 12 0 42 12 29 56 0.27 110 0 0 12 4 15 19 34 46.2 17 96 -44 11 54 55 12 13 35 11 49 36 12 18 54 0.27 111 0 0 11 52 40 19 34 47.3 18 96 -43 11 43 19 12 2 1 11 37 59 12 7 19 0.27 112 0 0 11 40 33 19 34 48.5 19 96 -42 11 31 11 11 49 54 11 25 50 11 55 14 0.27 113 0 0 11 27 54 19 34 49.8 20 97 -41 11 18 31 11 37 17 11 13 10 11 42 37 0.27 114 0 0 11 14 44 19 34 51.1 21 97 -40 11 5 19 11 24 7 10 59 58 11 29 28 0.27 115 0 0 11 1 2 19 34 52.6 22 97 -39 10 51 36 11 10 27 10 46 14 11 15 48 0.27 116 0 0 10 46 48 19 34 54.0 23 97 -38 10 37 22 10 56 14 10 31 59 11 1 36 0.27 117 0 0 10 32 3 19 34 55.6 24 97 -37 10 22 35 10 41 30 10 17 12 10 46 53 0.27 118 0 0 10 16 46 19 34 57.2 25 97 -36 10 7 18 10 26 15 10 1 54 10 31 38 0.27 119 0 0 10 0 58 19 34 58.9 26 97 -35 9 51 28 10 10 28 9 46 4 10 15 52 0.27 120 0 0 9 44 39 19 35 0.6 27 98 -34 9 35 7 9 54 9 9 29 42 9 59 34 0.27 121 0 0 9 27 47 19 35 2.4 28 98 -33 9 18 15 9 37 20 9 12 49 9 42 45 0.27 122 0 0 9 10 25 19 35 4.3 29 98 -32 9 0 51 9 19 59 8 55 24 9 25 25 0.27 123 0 0 8 52 31 19 35 6.2 30 98 -31 8 42 56 9 2 6 8 37 28 9 7 33 0.27 124 0 0 8 34 6 19 35 8.3 31 98 -30 8 24 29 8 43 43 8 19 1 8 49 10 0.27 125 0 0 8 15 10 19 35 10.4 32 98 -28 8 5 32 8 24 48 8 0 3 8 30 16 0.27 126 0 0 7 55 43 19 35 12.5 33 98 -27 7 46 3 8 5 22 7 40 33 8 10 51 0.27 127 0 0 7 35 45 19 35 14.7 34 98 -26 7 26 4 7 45 25 7 20 33 7 50 56 0.27 128 0 0 7 15 16 19 35 17.0 35 98 -25 7 5 33 7 24 58 7 0 2 7 30 29 0.27 129 0 0 6 54 16 19 35 19.4 36 98 -24 6 44 32 7 4 0 6 39 0 7 9 32 0.27 130 0 0 6 32 47 19 35 21.8 37 98 -23 6 23 1 6 42 32 6 17 27 6 48 5 0.27 131 0 0 6 10 47 19 35 24.3 38 98 -22 6 0 59 6 20 33 5 55 25 6 26 7 0.27 132 0 0 5 48 16 19 35 26.9 39 98 -21 5 38 28 5 58 5 5 32 52 6 3 39 0.27 133 0 0 5 25 17 19 35 29.5 40 98 -20 5 15 26 5 35 6 5 9 50 5 40 42 0.27 134 0 0 5 1 47 19 35 32.2 41 97 -19 4 51 55 5 11 39 4 46 18 5 17 15 0.27 135 0 0 4 37 48 19 35 35.0 42 97 -18 4 27 55 4 47 41 4 22 17 4 53 19 0.27 136 0 0 4 13 21 19 35 37.8 44 97 -17 4 3 26 4 23 15 3 57 47 4 28 54 0.27 137 0 0 3 48 24 19 35 40.7 45 97 -16 3 38 28 3 58 21 3 32 48 4 4 0 0.27 138 0 0 3 23 0 19 35 43.7 46 97 -15 3 13 1 3 32 58 3 7 21 3 38 38 0.27 139 0 0 2 57 7 19 35 46.7 47 96 -13 2 47 7 3 7 7 2 41 26 3 12 48 0.27 140 0 0 2 30 47 19 35 49.8 48 96 -12 2 20 46 2 40 49 2 15 3 2 46 31 0.27 141 0 0 2 4 0 19 35 52.9 49 96 -11 1 53 57 2 14 3 1 48 13 2 19 46 0.27 142 0 0 1 36 47 19 35 56.1 50 95 -10 1 26 42 1 46 51 1 20 57 1 52 35 0.27 143 0 0 1 9 7 19 35 59.4 51 95 -9 0 59 0 1 19 13 0 53 15 1 24 58 0.27 144 0 0 0 41 1 19 36 2.7 52 95 -8 0 30 53 0 51 9 0 25 7 0 56 55 0.27 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41 18.0 13 280 62 -44 12 50 -43 54 28 -44 18 4 -43 49 15 0.27 -105 0 0 -44 8 16 19 41 18.7 13 279 62 -44 17 26 -43 59 5 -44 22 40 -43 53 52 0.27 -104 0 0 -44 12 29 19 41 19.3 12 279 62 -44 21 39 -44 3 19 -44 26 52 -43 58 6 0.28 -103 0 0 -44 16 18 19 41 19.8 11 278 61 -44 25 28 -44 7 9 -44 30 41 -44 1 56 0.28 -102 0 0 -44 19 45 19 41 20.3 11 277 61 -44 28 55 -44 10 36 -44 34 7 -44 5 24 0.28 -101 0 0 -44 22 49 19 41 20.8 10 277 60 -44 31 58 -44 13 40 -44 37 11 -44 8 28 0.28 -100 0 0 -44 25 29 19 41 21.3 9 276 60 -44 34 38 -44 16 21 -44 39 51 -44 11 9 0.28 - 99 0 0 -44 27 47 19 41 21.7 8 275 59 -44 36 56 -44 18 39 -44 42 8 -44 13 27 0.28 - 98 0 0 -44 29 42 19 41 22.1 8 274 59 -44 38 50 -44 20 34 -44 44 3 -44 15 22 0.28 - 97 0 0 -44 31 14 19 41 22.4 7 274 58 -44 40 22 -44 22 6 -44 45 34 -44 16 55 0.28 - 96 0 0 -44 32 23 19 41 22.8 6 273 58 -44 41 31 -44 23 15 -44 46 43 -44 18 4 0.29 - 95 0 0 -44 33 9 19 41 23.0 6 272 57 -44 42 17 -44 24 2 -44 47 30 -44 18 50 0.29 - 94 0 0 -44 33 33 19 41 23.3 5 272 57 -44 42 41 -44 24 25 -44 47 53 -44 19 14 0.29 - 93 0 0 -44 33 34 19 41 23.5 4 271 56 -44 42 42 -44 24 26 -44 47 54 -44 19 15 0.29 - 92 0 0 -44 33 12 19 41 23.7 3 270 56 -44 42 20 -44 24 4 -44 47 32 -44 18 53 0.30 - 91 0 0 -44 32 27 19 41 23.8 3 269 55 -44 41 35 -44 23 19 -44 46 47 -44 18 8 0.31 - 90 0 0 -44 31 19 19 41 24.0 2 269 55 -44 40 28 -44 22 12 -44 45 40 -44 17 0 0.33 - 89 0 0 -44 29 49 19 41 24.0 1 268 54 -44 38 58 -44 20 41 -44 44 10 -44 15 29 0.36 - 88 0 0 -44 27 56 19 41 24.1 1 267 53 -44 37 5 -44 18 48 -44 42 17 -44 13 36 0.47 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 4923-00196-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 11 24 05.4703 DE: -02 08 16.322 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 11 24 05.4703 DE: -02 08 16.322 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.1 * B mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2140) Kemerovo asteroid class: approx. diameter [km]: 33 approx. diameter ["]: 0.013 distance from Earth [AU]: 3.43370 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#52 date of fit: 2023 Apr 24 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", 0.004", 115.685° remarks: * orbital elements for (2140)Kemerovo : Mean anomaly = 121.0643991686 deg Arg. of pericenter = 115.4745142478 deg Long. of node = 274.4579358963 deg Inclination = 6.9857487772 deg Eccentricity = 0.0569060547 Semimajor axis = 2.9862191554 AU Perihelion dist = 2.8162852048 AU Mag: H = 11.51, G = 0.15 Epoch of elements : MJD 60629.81806425 TDT (2024 Nov 15.8181) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#522023Apr24,1.08,2024,11,15,19.633539,-0.126649,-0.228713,14.894696,-8.292251,-0.004865,0.001789,-0.000001,0.000000 -178.5453,-2.2725,-118.32,-18.76,False TYC 4923-00196-1,11.40151948,-2.1378670,11.55,11.05,10.78,0.0,4,,11.42250437,-2.2725060,6.46,6.28,0,0,0 2140,Kemerovo,17.51,32.609,3.4337,0,0,2.546,-21.24,,1.8,0 0,120.9082,2024,11,15,115.4745,274.4579,6.9857,0.05691,2.98622,2.81629,11.51,5.0,0.15 1.285,0.0127,0.0037,116,0.0037,Known errors,0.86,0,-1,-1 20241115_0196-1,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:48 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org