IOTA/IOTA-ES occultation update for (1968) Mehltretter / TYC 6355-01222-1 event on 2024 Nov 21, 11:24 UT Visible from Summary ------- On 2024 Nov 21 UT, the 13.2353575504968 km diameter asteroid (1968) Mehltretter will occult a 9.2 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.99 mag to 17.20 mag (the magnitude of the asteroid) for at most 0.540 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: 91 * date and approx. time of event: 2024 Nov 21, 11:20 - 2024 Nov 21, 11:28 * geocentric midpoint of event [JD]: 2460635.97534888 * magnitude of target star: 9.21 * magnitude drop [mag]: 7.99 * estimated maximum duration [s]: 0.540 * Moon: 66 % sunlit, 175° distance * Sun: 77° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.51 * 1 sigma uncertainty interval [seconds]: +/- 0.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.003", 71°) * approx speed of asteroid's shadow [km/s]: 24.7173 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6355-01222-1 by 1968 Mehltretter on 2024 Nov 21 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 - 3 0 0 - 5 49 16 11 20 21.5 0 110 73 - 5 53 18 - 5 45 15 - 5 57 25 - 5 41 7 .... - 2 0 0 - 6 11 17 11 20 21.6 1 110 74 - 6 15 18 - 6 7 16 - 6 19 24 - 6 3 9 -0.06 - 1 0 0 - 6 32 48 11 20 21.7 2 110 75 - 6 36 49 - 6 28 48 - 6 40 54 - 6 24 42 -0.16 0 0 0 - 6 53 50 11 20 22.0 3 110 75 - 6 57 50 - 6 49 51 - 7 1 55 - 6 45 45 -0.19 1 0 0 - 7 14 23 11 20 22.3 4 110 76 - 7 18 22 - 7 10 24 - 7 22 27 - 7 6 19 -0.21 2 0 0 - 7 34 26 11 20 22.7 5 110 77 - 7 38 25 - 7 30 27 - 7 42 29 - 7 26 23 -0.23 3 0 0 - 7 53 59 11 20 23.2 6 110 77 - 7 57 57 - 7 50 1 - 8 2 1 - 7 45 58 -0.23 4 0 0 - 8 13 2 11 20 23.8 8 110 78 - 8 17 0 - 8 9 5 - 8 21 3 - 8 5 2 -0.24 5 0 0 - 8 31 35 11 20 24.5 9 109 78 - 8 35 32 - 8 27 38 - 8 39 35 - 8 23 36 -0.24 6 0 0 - 8 49 38 11 20 25.3 10 109 79 - 8 53 34 - 8 45 41 - 8 57 36 - 8 41 39 -0.25 7 0 0 - 9 7 9 11 20 26.1 11 109 79 - 9 11 5 - 9 3 13 - 9 15 7 - 8 59 12 -0.25 8 0 0 - 9 24 11 11 20 27.0 12 109 79 - 9 28 6 - 9 20 15 - 9 32 7 - 9 16 14 -0.25 9 0 0 - 9 40 41 11 20 28.0 13 109 79 - 9 44 36 - 9 36 46 - 9 48 36 - 9 32 46 -0.25 10 0 0 - 9 56 40 11 20 29.1 14 109 79 -10 0 35 - 9 52 46 -10 4 34 - 9 48 46 -0.26 11 0 0 -10 12 9 11 20 30.3 15 108 79 -10 16 3 -10 8 15 -10 20 2 -10 4 15 -0.26 12 0 0 -10 27 6 11 20 31.6 16 108 79 -10 30 59 -10 23 12 -10 34 58 -10 19 13 -0.26 13 0 0 -10 41 32 11 20 32.9 17 108 79 -10 45 25 -10 37 39 -10 49 23 -10 33 40 -0.26 14 0 0 -10 55 27 11 20 34.3 18 108 78 -10 59 19 -10 51 34 -11 3 17 -10 47 36 -0.26 15 0 0 -11 8 50 11 20 35.8 19 108 78 -11 12 42 -11 4 58 -11 16 39 -11 1 0 -0.26 16 0 0 -11 21 42 11 20 37.3 20 108 77 -11 25 34 -11 17 50 -11 29 31 -11 13 53 -0.26 17 0 0 -11 34 2 11 20 39.0 21 108 77 -11 37 54 -11 30 11 -11 41 50 -11 26 14 -0.26 18 0 0 -11 45 51 11 20 40.7 22 107 76 -11 49 42 -11 42 0 -11 53 38 -11 38 4 -0.27 19 0 0 -11 57 9 11 20 42.5 23 107 75 -12 0 59 -11 53 18 -12 4 55 -11 49 22 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49 11 21 11.8 36 105 64 -13 39 37 -13 32 2 -13 43 29 -13 28 9 -0.27 33 0 0 -13 39 42 11 21 14.5 36 105 64 -13 43 29 -13 35 55 -13 47 21 -13 32 2 -0.27 34 0 0 -13 43 3 11 21 17.3 37 105 63 -13 46 50 -13 39 16 -13 50 42 -13 35 23 -0.27 35 0 0 -13 45 52 11 21 20.1 38 105 62 -13 49 39 -13 42 5 -13 53 31 -13 38 13 -0.27 36 0 0 -13 48 9 11 21 23.0 39 105 61 -13 51 56 -13 44 22 -13 55 48 -13 40 30 -0.27 37 0 0 -13 49 54 11 21 25.9 40 105 60 -13 53 41 -13 46 7 -13 57 33 -13 42 15 -0.27 38 0 0 -13 51 8 11 21 28.9 41 105 59 -13 54 54 -13 47 21 -13 58 46 -13 43 28 -0.28 39 0 0 -13 51 49 11 21 32.0 42 105 58 -13 55 36 -13 48 2 -13 59 27 -13 44 10 -0.28 40 0 0 -13 51 58 11 21 35.1 43 105 57 -13 55 45 -13 48 11 -13 59 37 -13 44 19 -0.28 41 0 0 -13 51 35 11 21 38.3 44 105 56 -13 55 22 -13 47 48 -13 59 14 -13 43 56 -0.28 42 0 0 -13 50 40 11 21 41.5 45 105 55 -13 54 27 -13 46 53 -13 58 19 -13 43 1 -0.28 43 0 0 -13 49 14 11 21 44.8 46 105 54 -13 53 1 -13 45 27 -13 56 53 -13 41 34 -0.28 44 0 0 -13 47 15 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57 -10 14 8 -10 25 56 -10 10 9 -0.28 69 0 0 -10 2 34 11 23 27.7 69 121 28 -10 6 28 - 9 58 39 -10 10 28 - 9 54 38 -0.28 70 0 0 - 9 46 32 11 23 32.2 70 123 27 - 9 50 28 - 9 42 37 - 9 54 28 - 9 38 36 -0.28 71 0 0 - 9 29 59 11 23 36.8 70 125 26 - 9 33 54 - 9 26 3 - 9 37 56 - 9 22 1 -0.28 72 0 0 - 9 12 53 11 23 41.4 71 127 25 - 9 16 49 - 9 8 56 - 9 20 51 - 9 4 54 -0.28 73 0 0 - 8 55 14 11 23 46.0 71 130 24 - 8 59 11 - 8 51 17 - 9 3 14 - 8 47 15 -0.28 74 0 0 - 8 37 4 11 23 50.7 72 132 23 - 8 41 2 - 8 33 6 - 8 45 4 - 8 29 3 -0.28 75 0 0 - 8 18 22 11 23 55.4 73 135 22 - 8 22 20 - 8 14 24 - 8 26 23 - 8 10 20 -0.28 76 0 0 - 7 59 8 11 24 0.1 73 138 21 - 8 3 6 - 7 55 9 - 8 7 10 - 7 51 4 -0.28 77 0 0 - 7 39 22 11 24 4.9 73 141 20 - 7 43 21 - 7 35 22 - 7 47 26 - 7 31 17 -0.28 78 0 0 - 7 19 4 11 24 9.6 74 144 19 - 7 23 4 - 7 15 4 - 7 27 9 - 7 10 59 -0.28 79 0 0 - 6 58 15 11 24 14.4 74 148 18 - 7 2 16 - 6 54 14 - 7 6 22 - 6 50 8 -0.28 80 0 0 - 6 36 55 11 24 19.3 74 151 17 - 6 40 56 - 6 32 54 - 6 45 3 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-12 5 16 40 5 25 16 5 12 16 5 29 40 -0.27 107 0 0 5 53 41 11 26 30.0 58 216 -13 5 49 22 5 57 59 5 44 58 6 2 24 -0.27 108 0 0 6 26 39 11 26 34.5 57 217 -15 6 22 20 6 30 58 6 17 56 6 35 23 -0.27 109 0 0 6 59 52 11 26 39.0 55 218 -16 6 55 33 7 4 12 6 51 8 7 8 37 -0.27 110 0 0 7 33 19 11 26 43.4 54 218 -17 7 28 59 7 37 39 7 24 33 7 42 5 -0.27 111 0 0 8 6 58 11 26 47.8 53 219 -18 8 2 38 8 11 18 7 58 11 8 15 45 -0.27 112 0 0 8 40 48 11 26 52.1 52 220 -19 8 36 28 8 45 9 8 32 1 8 49 36 -0.27 113 0 0 9 14 49 11 26 56.3 51 220 -20 9 10 28 9 19 11 9 6 1 9 23 38 -0.27 114 0 0 9 49 0 11 27 0.4 50 221 -21 9 44 38 9 53 21 9 40 11 9 57 49 -0.27 115 0 0 10 23 18 11 27 4.5 49 222 -22 10 18 56 10 27 40 10 14 29 10 32 8 -0.27 116 0 0 10 57 44 11 27 8.6 48 222 -24 10 53 22 11 2 6 10 48 54 11 6 35 -0.27 117 0 0 11 32 16 11 27 12.5 47 223 -25 11 27 53 11 36 39 11 23 25 11 41 7 -0.27 118 0 0 12 6 53 11 27 16.4 46 223 -26 12 2 30 12 11 16 11 58 1 12 15 45 -0.27 119 0 0 12 41 33 11 27 20.2 45 224 -27 12 37 10 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11 28 1.7 30 230 -41 20 5 15 20 14 2 20 0 46 20 18 32 -0.27 133 0 0 20 43 16 11 28 4.3 29 231 -42 20 38 53 20 47 40 20 34 24 20 52 9 -0.27 134 0 0 21 16 42 11 28 6.7 28 231 -43 21 12 19 21 21 5 21 7 50 21 25 34 -0.27 135 0 0 21 49 54 11 28 9.1 27 232 -44 21 45 31 21 54 17 21 41 2 21 58 46 -0.27 136 0 0 22 22 52 11 28 11.3 26 232 -45 22 18 29 22 27 15 22 14 1 22 31 43 -0.27 137 0 0 22 55 35 11 28 13.5 25 232 -46 22 51 12 22 59 57 22 46 44 23 4 26 -0.27 138 0 0 23 28 2 11 28 15.6 24 233 -47 23 23 40 23 32 24 23 19 12 23 36 52 -0.27 139 0 0 24 0 12 11 28 17.5 23 233 -48 23 55 50 24 4 34 23 51 23 24 9 2 -0.27 140 0 0 24 32 5 11 28 19.4 22 234 -49 24 27 44 24 36 27 24 23 17 24 40 54 -0.27 141 0 0 25 3 40 11 28 21.2 21 234 -50 24 59 19 25 8 1 24 54 52 25 12 28 -0.27 142 0 0 25 34 56 11 28 22.9 20 235 -51 25 30 35 25 39 17 25 26 9 25 43 43 -0.27 143 0 0 26 5 52 11 28 24.5 19 235 -52 26 1 32 26 10 12 25 57 6 26 14 39 -0.27 144 0 0 26 36 28 11 28 26.0 18 236 -52 26 32 8 26 40 48 26 27 43 26 45 14 -0.27 145 0 0 27 6 43 11 28 27.4 17 236 -53 27 2 24 27 11 3 26 57 59 27 15 28 -0.27 146 0 0 27 36 37 11 28 28.7 16 237 -54 27 32 18 27 40 56 27 27 53 27 45 21 -0.27 147 0 0 28 6 8 11 28 29.9 15 237 -55 28 1 50 28 10 27 27 57 26 28 14 51 -0.27 148 0 0 28 35 18 11 28 31.1 14 238 -56 28 31 0 28 39 35 28 26 36 28 43 59 -0.27 149 0 0 29 4 4 11 28 32.1 13 238 -57 28 59 46 29 8 21 28 55 23 29 12 44 -0.27 150 0 0 29 32 26 11 28 33.1 12 239 -58 29 28 10 29 36 43 29 23 47 29 41 6 -0.27 151 0 0 30 0 25 11 28 34.0 11 239 -58 29 56 9 30 4 41 29 51 47 30 9 4 -0.27 152 0 0 30 28 0 11 28 34.8 10 240 -59 30 23 44 30 32 15 30 19 23 30 36 37 -0.27 153 0 0 30 55 10 11 28 35.5 9 240 -60 30 50 55 30 59 25 30 46 34 31 3 46 -0.27 154 0 0 31 21 55 11 28 36.1 8 241 -61 31 17 40 31 26 9 31 13 20 31 30 29 -0.27 155 0 0 31 48 14 11 28 36.7 7 241 -61 31 44 0 31 52 28 31 39 41 31 56 48 -0.27 156 0 0 32 14 9 11 28 37.1 6 242 -62 32 9 55 32 18 22 32 5 37 32 22 41 -0.27 157 0 0 32 39 37 11 28 37.5 5 242 -63 32 35 24 32 43 50 32 31 6 32 48 8 -0.27 158 0 0 33 4 40 11 28 37.8 4 243 -63 33 0 28 33 8 52 32 56 10 33 13 10 -0.27 159 0 0 33 29 16 11 28 38.1 3 243 -64 33 25 5 33 33 27 33 20 48 33 37 45 -0.26 160 0 0 33 53 26 11 28 38.3 2 244 -64 33 49 15 33 57 37 33 44 59 34 1 53 -0.26 161 0 0 34 17 10 11 28 38.4 1 244 -65 34 13 0 34 21 20 34 8 44 34 25 36 -0.25 162 0 0 34 40 27 11 28 38.4 0 245 -65 34 36 18 34 44 36 34 32 3 34 48 52 -0.13 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 6355-01222-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 18 39.5892 DE: -20 22 32.817 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 18 39.5890 DE: -20 22 32.818 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.2 * B mag [mag]: 9.8 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1968) Mehltretter asteroid class: approx. diameter [km]: 13 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.82160 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 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): 0.011", 0.003", 70.842° remarks: * orbital elements for (1968)Mehltretter : Mean anomaly = 88.3079311198 deg Arg. of pericenter = 163.7400456620 deg Long. of node = 71.4689750396 deg Inclination = 4.5929193158 deg Eccentricity = 0.1112777637 Semimajor axis = 2.7390866315 AU Perihelion dist = 2.4342871966 AU Mag: H = 11.73, G = 0.15 Epoch of elements : MJD 60635.47534846 TDT (2024 Nov 21.4753) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,0.54,2024,11,21,11.408373,-0.098713,0.249063,12.967201,5.146423,0.005486,0.001648,0.000000,0.000000 87.9342,-20.2725,5.37,-20.07,False TYC 6355-01222-1,21.31099702,-20.3757824,9.79,9.21,8.90,0.1,0,,21.33438673,-20.2724686,7.99,7.85,0,0,0 1968,Mehltretter,17.20,13.440,2.8216,0,0,2.873,16.04,,1.2,0 0,88.2046,2024,11,21,163.7400,71.4690,4.5929,0.11128,2.73909,2.43429,11.73,5.0,0.15 1.511,0.0110,0.0033,71,0.0034,Known errors,0.91,0,-1,-1 20241121_1222-1,60140.71 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org