IOTA/IOTA-ES occultation update for (1794) Finsen / TYC 5513-01064-1 event on 2024 Dec 02, 12:03 UT Visible from Summary ------- On 2024 Dec 02 UT, the 37.753 km diameter asteroid (1794) Finsen will occult a 11.6 mag star in the constellation Crater for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.87 mag to 16.46 mag (the magnitude of the asteroid) for at most 1.370 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 Dec 02, 11:59 - 2024 Dec 02, 12:06 * geocentric midpoint of event [JD]: 2460647.00220950 * magnitude of target star: 11.60 * magnitude drop [mag]: 4.87 * estimated maximum duration [s]: 1.370 * Moon: 2 % sunlit, 85° distance * Sun: 72° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 39 * 1 sigma uncertainty interval [path widths]: +/- 0.31 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.001", 102°) * approx speed of asteroid's shadow [km/s]: 27.6261 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5513-01064-1 by 1794 Finsen on 2024 Dec 2 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 -156 0 0 43 22 32 11 59 28.6 0 106 -59 43 11 34 43 33 31 43 4 43 43 40 22 .... -155 0 0 43 10 6 11 59 28.7 1 106 -59 42 59 6 43 21 6 42 52 15 43 27 59 -0.10 -154 0 0 42 57 14 11 59 28.8 2 107 -58 42 46 12 43 8 16 42 39 20 43 15 9 -0.17 -153 0 0 42 43 55 11 59 28.9 3 108 -58 42 32 51 42 54 58 42 25 58 43 1 53 -0.20 -152 0 0 42 30 9 11 59 29.1 3 108 -57 42 19 4 42 41 14 42 12 10 42 48 10 -0.21 -151 0 0 42 15 56 11 59 29.3 4 109 -57 42 4 50 42 27 3 41 57 54 42 34 0 -0.22 -150 0 0 42 1 17 11 59 29.5 5 110 -56 41 50 8 42 12 26 41 43 12 42 19 23 -0.23 -149 0 0 41 46 10 11 59 29.8 6 110 -56 41 35 0 41 57 21 41 28 2 42 4 19 -0.23 -148 0 0 41 30 36 11 59 30.2 7 111 -55 41 19 24 41 41 48 41 12 25 41 48 48 -0.24 -147 0 0 41 14 34 11 59 30.6 7 112 -55 41 3 20 41 25 48 40 56 20 41 32 49 -0.24 -146 0 0 40 58 4 11 59 31.0 8 112 -54 40 46 49 41 9 20 40 39 47 41 16 23 -0.24 -145 0 0 40 41 7 11 59 31.5 9 113 -53 40 29 49 40 52 25 40 22 47 40 59 28 -0.25 -144 0 0 40 23 41 11 59 32.1 10 114 -53 40 12 22 40 35 1 40 5 18 40 42 6 -0.25 -143 0 0 40 5 47 11 59 32.7 11 114 -52 39 54 26 40 17 9 39 47 21 40 24 15 -0.25 -142 0 0 39 47 25 11 59 33.4 11 115 -51 39 36 2 39 58 49 39 28 56 40 5 56 -0.25 -141 0 0 39 28 34 11 59 34.1 12 116 -51 39 17 9 39 40 0 39 10 2 39 47 9 -0.25 -140 0 0 39 9 15 11 59 34.9 13 116 -50 38 57 47 39 20 43 38 50 39 39 27 53 -0.25 -139 0 0 38 49 27 11 59 35.7 14 117 -49 38 37 57 39 0 57 38 30 47 39 8 8 -0.25 -138 0 0 38 29 10 11 59 36.6 15 118 -49 38 17 38 38 40 42 38 10 27 38 47 54 -0.25 -137 0 0 38 8 24 11 59 37.5 16 118 -48 37 56 50 38 19 58 37 49 38 38 27 12 -0.25 -136 0 0 37 47 9 11 59 38.5 17 119 -47 37 35 33 37 58 45 37 28 19 38 6 0 -0.25 -135 0 0 37 25 25 11 59 39.6 17 119 -46 37 13 47 37 37 3 37 6 32 37 44 20 -0.26 -134 0 0 37 3 12 11 59 40.7 18 120 -46 36 51 31 37 14 52 36 44 15 37 22 10 -0.26 -133 0 0 36 40 29 11 59 41.9 19 121 -45 36 28 47 36 52 12 36 21 29 36 59 31 -0.26 -132 0 0 36 17 17 11 59 43.2 20 121 -44 36 5 33 36 29 2 35 58 14 36 36 23 -0.26 -131 0 0 35 53 37 11 59 44.5 21 122 -43 35 41 50 36 5 24 35 34 30 36 12 45 -0.26 -130 0 0 35 29 26 11 59 45.9 22 123 -43 35 17 38 35 41 16 35 10 16 35 48 39 -0.26 -129 0 0 35 4 47 11 59 47.3 23 123 -42 34 52 57 35 16 39 34 45 34 35 24 3 -0.26 -128 0 0 34 39 39 11 59 48.9 24 124 -41 34 27 46 34 51 32 34 20 22 34 58 58 -0.26 -127 0 0 34 14 2 11 59 50.5 25 124 -40 34 2 7 34 25 57 33 54 41 34 33 24 -0.26 -126 0 0 33 47 56 11 59 52.1 26 125 -39 33 35 59 33 59 53 33 28 32 34 7 21 -0.26 -125 0 0 33 21 21 11 59 53.9 27 126 -38 33 9 22 33 33 21 33 1 54 33 40 50 -0.26 -124 0 0 32 54 18 11 59 55.7 27 126 -38 32 42 17 33 6 19 32 34 47 33 13 50 -0.26 -123 0 0 32 26 46 11 59 57.6 28 127 -37 32 14 43 32 38 50 32 7 13 32 46 22 -0.26 -122 0 0 31 58 47 11 59 59.5 29 128 -36 31 46 42 32 10 52 31 39 10 32 18 25 -0.26 -121 0 0 31 30 19 12 0 1.6 30 128 -35 31 18 12 31 42 27 31 10 39 31 50 1 -0.26 -120 0 0 31 1 24 12 0 3.7 31 129 -34 30 49 16 31 13 34 30 41 42 31 21 9 -0.26 -119 0 0 30 32 2 12 0 5.9 32 129 -33 30 19 52 30 44 14 30 12 17 30 51 50 -0.26 -118 0 0 30 2 14 12 0 8.1 33 130 -32 29 50 1 30 14 27 29 42 25 30 22 5 -0.26 -117 0 0 29 31 59 12 0 10.5 34 131 -31 29 19 45 29 44 14 29 12 7 29 51 52 -0.26 -116 0 0 29 1 18 12 0 12.9 35 131 -30 28 49 2 29 13 34 28 41 23 29 21 14 -0.26 -115 0 0 28 30 12 12 0 15.4 36 132 -29 28 17 54 28 42 30 28 10 15 28 50 11 -0.26 -114 0 0 27 58 41 12 0 18.0 37 133 -28 27 46 22 28 11 0 27 38 41 28 18 42 -0.26 -113 0 0 27 26 45 12 0 20.6 38 133 -27 27 14 25 27 39 7 27 6 43 27 46 50 -0.26 -112 0 0 26 54 26 12 0 23.4 39 134 -26 26 42 4 27 6 49 26 34 22 27 14 33 -0.26 -111 0 0 26 21 45 12 0 26.2 40 134 -25 26 9 21 26 34 9 26 1 38 26 41 53 -0.26 -110 0 0 25 48 40 12 0 29.1 41 135 -24 25 36 16 26 1 6 25 28 31 26 8 51 -0.26 -109 0 0 25 15 15 12 0 32.1 42 136 -23 25 2 49 25 27 41 24 55 4 25 35 28 -0.26 -108 0 0 24 41 28 12 0 35.2 44 137 -22 24 29 1 24 53 56 24 21 15 25 1 43 -0.26 -107 0 0 24 7 22 12 0 38.3 45 137 -21 23 54 54 24 19 51 23 47 7 24 27 39 -0.26 -106 0 0 23 32 56 12 0 41.5 46 138 -20 23 20 27 23 45 27 23 12 40 23 53 15 -0.26 -105 0 0 22 58 13 12 0 44.8 47 139 -19 22 45 43 23 10 44 22 37 55 23 18 33 -0.26 -104 0 0 22 23 12 12 0 48.2 48 139 -18 22 10 41 22 35 44 22 2 53 22 43 33 -0.26 -103 0 0 21 47 55 12 0 51.6 49 140 -17 21 35 23 22 0 28 21 27 35 22 8 18 -0.26 -102 0 0 21 12 23 12 0 55.2 50 141 -16 20 59 50 21 24 56 20 52 1 21 32 46 -0.26 -101 0 0 20 36 36 12 0 58.8 51 142 -15 20 24 3 20 49 10 20 16 14 20 57 1 -0.26 -100 0 0 20 0 36 12 1 2.4 52 143 -14 19 48 3 20 13 11 19 40 13 20 21 2 -0.27 - 99 0 0 19 24 25 12 1 6.2 53 143 -13 19 11 51 19 37 0 19 4 1 19 44 51 -0.27 - 98 0 0 18 48 2 12 1 10.0 54 144 -11 18 35 28 19 0 37 18 27 38 19 8 29 -0.27 - 97 0 0 18 11 30 12 1 13.9 55 145 -10 17 58 56 18 24 5 17 51 6 18 31 57 -0.27 - 96 0 0 17 34 49 12 1 17.8 56 146 -9 17 22 15 17 47 25 17 14 25 17 55 16 -0.27 - 95 0 0 16 58 1 12 1 21.8 57 147 -8 16 45 27 17 10 37 16 37 37 17 18 28 -0.27 - 94 0 0 16 21 7 12 1 25.9 58 148 -7 16 8 33 16 33 42 16 0 43 16 41 34 -0.27 - 93 0 0 15 44 8 12 1 30.0 59 150 -6 15 31 34 15 56 43 15 23 44 16 4 35 -0.27 - 92 0 0 15 7 6 12 1 34.2 60 151 -5 14 54 32 15 19 40 14 46 42 15 27 31 -0.27 - 91 0 0 14 30 1 12 1 38.4 61 152 -4 14 17 27 14 42 35 14 9 38 14 50 26 -0.27 - 90 0 0 13 52 55 12 1 42.7 62 153 -2 13 40 22 14 5 29 13 32 33 14 13 19 -0.27 - 89 0 0 13 15 49 12 1 47.0 63 155 -1 13 3 17 13 28 22 12 55 28 13 36 12 -0.27 - 88 0 0 12 38 45 12 1 51.4 64 156 0 12 26 13 12 51 17 12 18 25 12 59 7 -0.27 - 87 0 0 12 1 43 12 1 55.8 65 158 1 11 49 13 12 14 15 11 41 25 12 22 4 -0.27 - 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35 0 0 -12 17 9 12 5 35.3 47 267 59 -12 28 6 -12 6 11 -12 34 55 -11 59 21 -0.28 - 34 0 0 -12 31 48 12 5 38.4 46 267 60 -12 42 43 -12 20 52 -12 49 32 -12 14 2 -0.28 - 33 0 0 -12 45 53 12 5 41.4 45 267 61 -12 56 47 -12 34 58 -13 3 35 -12 28 10 -0.28 - 32 0 0 -12 59 24 12 5 44.4 44 267 62 -13 10 17 -12 48 31 -13 17 4 -12 41 43 -0.28 - 31 0 0 -13 12 21 12 5 47.3 43 267 63 -13 23 13 -13 1 29 -13 29 59 -12 54 42 -0.28 - 30 0 0 -13 24 45 12 5 50.2 42 267 64 -13 35 35 -13 13 54 -13 42 20 -13 7 8 -0.28 - 29 0 0 -13 36 34 12 5 53.0 41 267 65 -13 47 23 -13 25 45 -13 54 8 -13 18 59 -0.28 - 28 0 0 -13 47 50 12 5 55.7 40 267 66 -13 58 38 -13 37 2 -14 5 22 -13 30 17 -0.28 - 27 0 0 -13 58 33 12 5 58.4 39 267 67 -14 9 19 -13 47 45 -14 16 3 -13 41 1 -0.28 - 26 0 0 -14 8 41 12 6 1.0 38 267 68 -14 19 27 -13 57 55 -14 26 9 -13 51 12 -0.28 - 25 0 0 -14 18 16 12 6 3.5 37 267 69 -14 29 1 -14 7 31 -14 35 43 -14 0 48 -0.28 - 24 0 0 -14 27 18 12 6 6.0 37 267 70 -14 38 2 -14 16 34 -14 44 43 -14 9 52 -0.28 - 23 0 0 -14 35 46 12 6 8.5 36 267 71 -14 46 29 -14 25 3 -14 53 10 -14 18 21 -0.28 - 22 0 0 -14 43 41 12 6 10.8 35 266 71 -14 54 23 -14 32 58 -15 1 3 -14 26 17 -0.28 - 21 0 0 -14 51 2 12 6 13.1 34 266 72 -15 1 43 -14 40 20 -15 8 23 -14 33 40 -0.28 - 20 0 0 -14 57 50 12 6 15.4 33 266 73 -15 8 31 -14 47 9 -15 15 10 -14 40 29 -0.28 - 19 0 0 -15 4 5 12 6 17.6 32 266 74 -15 14 45 -14 53 25 -15 21 24 -14 46 45 -0.28 - 18 0 0 -15 9 47 12 6 19.7 31 266 75 -15 20 26 -14 59 7 -15 27 4 -14 52 27 -0.28 - 17 0 0 -15 14 55 12 6 21.7 30 266 76 -15 25 34 -15 4 16 -15 32 12 -14 57 37 -0.28 - 16 0 0 -15 19 30 12 6 23.7 29 266 77 -15 30 9 -15 8 52 -15 36 46 -15 2 13 -0.28 - 15 0 0 -15 23 33 12 6 25.7 28 265 78 -15 34 10 -15 12 54 -15 40 48 -15 6 16 -0.28 - 14 0 0 -15 27 2 12 6 27.5 27 265 78 -15 37 39 -15 16 24 -15 44 17 -15 9 46 -0.28 - 13 0 0 -15 29 58 12 6 29.3 26 265 79 -15 40 35 -15 19 21 -15 47 13 -15 12 43 -0.28 - 12 0 0 -15 32 22 12 6 31.1 25 265 80 -15 42 59 -15 21 45 -15 49 36 -15 15 7 -0.28 - 11 0 0 -15 34 12 12 6 32.8 24 265 81 -15 44 49 -15 23 35 -15 51 26 -15 16 58 -0.28 - 10 0 0 -15 35 30 12 6 34.4 23 264 81 -15 46 6 -15 24 53 -15 52 43 -15 18 16 -0.28 - 9 0 0 -15 36 15 12 6 35.9 22 264 82 -15 46 51 -15 25 38 -15 53 28 -15 19 1 -0.28 - 8 0 0 -15 36 27 12 6 37.4 21 264 82 -15 47 3 -15 25 50 -15 53 40 -15 19 13 -0.28 - 7 0 0 -15 36 6 12 6 38.8 20 264 83 -15 46 43 -15 25 30 -15 53 19 -15 18 52 -0.28 - 6 0 0 -15 35 13 12 6 40.2 19 263 83 -15 45 49 -15 24 36 -15 52 26 -15 17 59 -0.28 - 5 0 0 -15 33 47 12 6 41.5 18 263 83 -15 44 23 -15 23 10 -15 51 0 -15 16 32 -0.28 - 4 0 0 -15 31 48 12 6 42.7 17 263 83 -15 42 25 -15 21 11 -15 49 2 -15 14 33 -0.28 - 3 0 0 -15 29 17 12 6 43.9 16 263 83 -15 39 54 -15 18 39 -15 46 31 -15 12 2 -0.28 - 2 0 0 -15 26 13 12 6 45.0 15 262 83 -15 36 50 -15 15 35 -15 43 27 -15 8 57 -0.28 - 1 0 0 -15 22 36 12 6 46.0 14 262 82 -15 33 13 -15 11 58 -15 39 51 -15 5 20 -0.28 0 0 0 -15 18 27 12 6 47.0 13 262 82 -15 29 4 -15 7 48 -15 35 42 -15 1 10 -0.28 1 0 0 -15 13 45 12 6 47.9 12 262 81 -15 24 23 -15 3 6 -15 31 1 -14 56 27 -0.28 2 0 0 -15 8 30 12 6 48.8 11 261 81 -15 19 9 -14 57 50 -15 25 47 -14 51 11 -0.28 3 0 0 -15 2 43 12 6 49.5 10 261 80 -15 13 22 -14 52 3 -15 20 1 -14 45 23 -0.28 4 0 0 -14 56 23 12 6 50.2 9 261 79 -15 7 3 -14 45 42 -15 13 42 -14 39 2 -0.28 5 0 0 -14 49 30 12 6 50.9 8 261 78 -15 0 11 -14 38 49 -15 6 50 -14 32 9 -0.28 6 0 0 -14 42 5 12 6 51.4 8 260 78 -14 52 46 -14 31 23 -14 59 26 -14 24 42 -0.28 7 0 0 -14 34 7 12 6 51.9 7 260 77 -14 44 49 -14 23 25 -14 51 30 -14 16 43 -0.29 8 0 0 -14 25 37 12 6 52.4 6 260 76 -14 36 20 -14 14 53 -14 43 1 -14 8 12 -0.29 9 0 0 -14 16 34 12 6 52.7 5 260 75 -14 27 18 -14 5 49 -14 33 59 -13 59 7 -0.29 10 0 0 -14 6 58 12 6 53.0 4 259 74 -14 17 43 -13 56 13 -14 24 25 -13 49 30 -0.29 11 0 0 -13 56 50 12 6 53.3 3 259 73 -14 7 36 -13 46 4 -14 14 18 -13 39 20 -0.30 12 0 0 -13 46 9 12 6 53.4 2 259 72 -13 56 56 -13 35 22 -14 3 39 -13 28 38 -0.32 13 0 0 -13 34 56 12 6 53.5 1 259 71 -13 45 44 -13 24 7 -13 52 28 -13 17 22 -0.38 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 5513-01064-1 * constellation : Crater * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 11 36 48.9045 DE: -10 57 28.282 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 11 36 48.9046 DE: -10 57 28.283 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.6 * B mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1794) Finsen asteroid class: approx. diameter [km]: 38 approx. diameter ["]: 0.018 distance from Earth [AU]: 2.88250 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2023 Apr 27 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): 0.019", 0.001", 101.726° remarks: * orbital elements for (1794)Finsen : Mean anomaly = 326.2998911996 deg Arg. of pericenter = 342.9009118932 deg Long. of node = 220.5451750604 deg Inclination = 14.6653241067 deg Eccentricity = 0.1579247300 Semimajor axis = 3.1202640387 AU Perihelion dist = 2.6274971828 AU Mag: H = 10.97, G = 0.15 Epoch of elements : MJD 60646.50220984 TDT (2024 Dec 02.5022) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr27,1.37,2024,12,2,12.053028,0.128084,0.231367,13.642186,-7.551890,-0.005311,0.001916,0.000000,0.000001 -78.1018,-11.0937,-3.40,-22.07,False TYC 5513-01064-1,11.61358456,-10.9578561,11.92,11.60,11.43,0.0,0,,11.63455151,-11.0936777,4.87,4.60,0,0,0 1794,Finsen,16.46,37.753,2.8825,0,0,2.828,-23.05,,2.4,0 0,326.2101,2024,12,2,342.9009,220.5452,14.6653,0.15792,3.12026,2.62750,10.97,5.0,0.15 1.312,0.0187,0.0011,102,0.0056,Known errors,1.19,0,-1,-1 20241202_1064-1,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:21 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org