IOTA/IOTA-ES occultation update for (21587) Christopynn / TYC 160-01274-1 event on 2024 Jan 22, 07:30 UT Visible from Summary ------- On 2024 Jan 22 UT, the 19.1691805060315 km diameter asteroid (21587) Christopynn will occult a 10.0 mag star in the constellation Monoceros for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.32 mag to 17.32 mag (the magnitude of the asteroid) for at most 1.580 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 Jan 22, 07:21 - 2024 Jan 22, 07:38 * geocentric midpoint of event [JD]: 2460331.81253534 * magnitude of target star: 10.00 * magnitude drop [mag]: 7.32 * estimated maximum duration [s]: 1.580 * Moon: 88 % sunlit, 29° distance * Sun: 155° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 20 * 1 sigma uncertainty interval [path widths]: +/- 0.32 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.017, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.004", 102°) * approx speed of asteroid's shadow [km/s]: 12.3395 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 160-01274-1 by 21587 Christopynn on 2024 Jan 22 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 135 0 0 13 22 26 7 38 39.0 0 84 16 13 27 45 13 17 7 13 31 10 13 13 42 .... 136 0 0 13 28 44 7 38 38.9 1 84 16 13 34 3 13 23 25 13 37 27 13 20 0 -0.07 137 0 0 13 34 50 7 38 38.7 2 84 15 13 40 9 13 29 31 13 43 34 13 26 6 -0.06 138 0 0 13 40 45 7 38 38.3 3 84 14 13 46 4 13 35 26 13 49 28 13 32 2 -0.06 139 0 0 13 46 29 7 38 37.7 4 85 13 13 51 47 13 41 10 13 55 12 13 37 45 -0.06 140 0 0 13 52 1 7 38 37.0 5 85 12 13 57 20 13 46 42 14 0 44 13 43 18 -0.06 141 0 0 13 57 22 7 38 36.2 6 85 11 14 2 40 13 52 3 14 6 5 13 48 39 -0.06 142 0 0 14 2 31 7 38 35.2 7 85 10 14 7 50 13 57 12 14 11 14 13 53 48 -0.06 143 0 0 14 7 29 7 38 34.1 8 86 9 14 12 47 14 2 10 14 16 11 13 58 46 -0.06 144 0 0 14 12 15 7 38 32.8 9 86 8 14 17 33 14 6 56 14 20 57 14 3 32 -0.06 145 0 0 14 16 49 7 38 31.4 10 86 7 14 22 8 14 11 31 14 25 32 14 8 7 -0.06 146 0 0 14 21 12 7 38 29.9 11 86 6 14 26 30 14 15 54 14 29 54 14 12 30 -0.06 147 0 0 14 25 23 7 38 28.2 12 87 5 14 30 41 14 20 5 14 34 5 14 16 41 -0.06 148 0 0 14 29 22 7 38 26.3 13 87 4 14 34 40 14 24 4 14 38 4 14 20 40 -0.06 149 0 0 14 33 10 7 38 24.3 14 87 4 14 38 28 14 27 52 14 41 51 14 24 28 -0.06 150 0 0 14 36 45 7 38 22.2 15 87 3 14 42 3 14 31 27 14 45 27 14 28 3 -0.06 151 0 0 14 40 9 7 38 20.0 16 88 2 14 45 27 14 34 51 14 48 50 14 31 27 -0.06 152 0 0 14 43 21 7 38 17.6 17 88 1 14 48 38 14 38 3 14 52 2 14 34 39 -0.06 153 0 0 14 46 21 7 38 15.0 17 88 0 14 51 38 14 41 3 14 55 2 14 37 39 -0.06 154 0 0 14 49 9 7 38 12.4 18 88 -1 14 54 26 14 43 51 14 57 50 14 40 27 -0.06 155 0 0 14 51 45 7 38 9.5 19 89 -2 14 57 2 14 46 27 15 0 26 14 43 3 -0.06 156 0 0 14 54 9 7 38 6.6 20 89 -3 14 59 26 14 48 51 15 2 50 14 45 27 -0.06 157 0 0 14 56 21 7 38 3.5 21 89 -4 15 1 38 14 51 3 15 5 2 14 47 40 -0.06 158 0 0 14 58 21 7 38 0.3 22 89 -5 15 3 39 14 53 3 15 7 2 14 49 40 -0.06 159 0 0 15 0 9 7 37 57.0 23 90 -6 15 5 27 14 54 52 15 8 50 14 51 28 -0.06 160 0 0 15 1 45 7 37 53.5 24 90 -6 15 7 3 14 56 28 15 10 26 14 53 4 -0.06 161 0 0 15 3 10 7 37 50.0 25 90 -7 15 8 27 14 57 52 15 11 51 14 54 29 -0.06 162 0 0 15 4 22 7 37 46.2 26 91 -8 15 9 39 14 59 4 15 13 3 14 55 41 -0.06 163 0 0 15 5 22 7 37 42.4 27 91 -9 15 10 39 15 0 5 15 14 3 14 56 41 -0.06 164 0 0 15 6 10 7 37 38.4 28 91 -10 15 11 28 15 0 53 15 14 51 14 57 29 -0.06 165 0 0 15 6 47 7 37 34.4 29 91 -11 15 12 4 15 1 29 15 15 28 14 58 6 -0.06 166 0 0 15 7 11 7 37 30.1 30 92 -12 15 12 28 15 1 54 15 15 52 14 58 30 -0.06 167 0 0 15 7 23 7 37 25.8 31 92 -13 15 12 41 15 2 6 15 16 4 14 58 43 -0.06 168 0 0 15 7 24 7 37 21.4 32 92 -14 15 12 41 15 2 7 15 16 5 14 58 43 -0.06 169 0 0 15 7 13 7 37 16.8 33 92 -15 15 12 30 15 1 55 15 15 54 14 58 32 -0.06 170 0 0 15 6 49 7 37 12.1 34 93 -16 15 12 7 15 1 32 15 15 30 14 58 8 -0.06 171 0 0 15 6 14 7 37 7.3 35 93 -16 15 11 32 15 0 57 15 14 55 14 57 33 -0.06 172 0 0 15 5 27 7 37 2.4 36 93 -17 15 10 45 15 0 10 15 14 8 14 56 46 -0.06 173 0 0 15 4 28 7 36 57.4 36 94 -18 15 9 46 14 59 11 15 13 10 14 55 48 -0.06 174 0 0 15 3 18 7 36 52.2 37 94 -19 15 8 35 14 58 0 15 11 59 14 54 37 -0.06 175 0 0 15 1 56 7 36 47.0 38 94 -20 15 7 13 14 56 38 15 10 37 14 53 15 -0.06 176 0 0 15 0 22 7 36 41.6 39 94 -21 15 5 39 14 55 4 15 9 3 14 51 41 -0.06 177 0 0 14 58 36 7 36 36.2 40 95 -22 15 3 54 14 53 18 15 7 17 14 49 55 -0.06 178 0 0 14 56 39 7 36 30.6 41 95 -23 15 1 56 14 51 21 15 5 20 14 47 57 -0.06 179 0 0 14 54 30 7 36 24.9 42 95 -24 14 59 47 14 49 12 15 3 11 14 45 48 -0.06 -180 0 0 14 52 9 7 36 19.1 43 96 -25 14 57 27 14 46 52 15 0 51 14 43 28 -0.06 -179 0 0 14 49 37 7 36 13.3 44 96 -25 14 54 55 14 44 20 14 58 19 14 40 56 -0.06 -178 0 0 14 46 54 7 36 7.3 45 96 -26 14 52 12 14 41 36 14 55 35 14 38 12 -0.06 -177 0 0 14 43 59 7 36 1.2 46 97 -27 14 49 17 14 38 41 14 52 41 14 35 17 -0.06 -176 0 0 14 40 53 7 35 55.0 47 97 -28 14 46 11 14 35 35 14 49 34 14 32 11 -0.06 -175 0 0 14 37 35 7 35 48.8 48 97 -29 14 42 53 14 32 17 14 46 17 14 28 53 -0.06 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-0.06 -136 0 0 10 15 42 7 30 47.4 84 134 -63 10 21 4 10 10 21 10 24 30 10 6 54 -0.06 -135 0 0 10 6 2 7 30 38.7 85 140 -64 10 11 24 10 0 40 10 14 50 9 57 14 -0.06 -134 0 0 9 56 14 7 30 30.1 85 148 -65 10 1 36 9 50 52 10 5 2 9 47 26 -0.06 -133 0 0 9 46 20 7 30 21.4 86 159 -65 9 51 42 9 40 58 9 55 8 9 37 31 -0.06 -132 0 0 9 36 18 7 30 12.7 86 172 -66 9 41 40 9 30 56 9 45 7 9 27 30 -0.06 -131 0 0 9 26 10 7 30 4.0 87 188 -67 9 31 33 9 20 48 9 34 59 9 17 22 -0.06 -130 0 0 9 15 56 7 29 55.3 86 205 -68 9 21 18 9 10 34 9 24 45 9 7 7 -0.06 -129 0 0 9 5 35 7 29 46.6 86 219 -68 9 10 57 9 0 13 9 14 24 8 56 46 -0.06 -128 0 0 8 55 8 7 29 37.8 86 230 -69 9 0 31 8 49 46 9 3 57 8 46 19 -0.06 -127 0 0 8 44 35 7 29 29.1 85 239 -70 8 49 58 8 39 13 8 53 24 8 35 46 -0.06 -126 0 0 8 33 56 7 29 20.4 84 245 -70 8 39 19 8 28 34 8 42 46 8 25 7 -0.06 -125 0 0 8 23 12 7 29 11.7 83 250 -71 8 28 34 8 17 49 8 32 1 8 14 22 -0.06 -124 0 0 8 12 22 7 29 3.0 82 254 -72 8 17 45 8 6 59 8 21 11 8 3 32 -0.06 -123 0 0 8 1 26 7 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52 7 25 13.2 56 277 -69 2 50 16 2 39 28 2 53 44 2 36 1 -0.06 - 95 0 0 2 32 48 7 25 5.8 55 277 -68 2 38 12 2 27 24 2 41 40 2 23 57 -0.06 - 94 0 0 2 20 45 7 24 58.6 54 277 -68 2 26 9 2 15 21 2 29 36 2 11 53 -0.06 - 93 0 0 2 8 42 7 24 51.4 53 277 -67 2 14 6 2 3 18 2 17 33 1 59 51 -0.06 - 92 0 0 1 56 41 7 24 44.4 52 277 -66 2 2 4 1 51 17 2 5 32 1 47 49 -0.06 - 91 0 0 1 44 40 7 24 37.4 51 277 -65 1 50 4 1 39 16 1 53 31 1 35 49 -0.06 - 90 0 0 1 32 41 7 24 30.5 50 278 -64 1 38 5 1 27 18 1 41 33 1 23 50 -0.06 - 89 0 0 1 20 44 7 24 23.7 49 278 -64 1 26 8 1 15 21 1 29 35 1 11 53 -0.06 - 88 0 0 1 8 49 7 24 17.0 48 278 -63 1 14 13 1 3 25 1 17 40 0 59 58 -0.06 - 87 0 0 0 56 56 7 24 10.4 47 278 -62 1 2 19 0 51 32 1 5 47 0 48 5 -0.06 - 86 0 0 0 45 5 7 24 3.9 46 278 -61 0 50 29 0 39 42 0 53 56 0 36 14 -0.06 - 85 0 0 0 33 17 7 23 57.6 45 278 -60 0 38 40 0 27 53 0 42 8 0 24 26 -0.06 - 84 0 0 0 21 31 7 23 51.3 44 278 -59 0 26 55 0 16 8 0 30 22 0 12 41 -0.06 - 83 0 0 0 9 49 7 23 45.1 43 278 -59 0 15 12 0 4 26 0 18 40 0 0 58 -0.06 - 82 0 0 - 0 1 50 7 23 39.1 42 278 -58 0 3 33 - 0 7 14 0 7 0 - 0 10 41 -0.06 - 81 0 0 - 0 13 26 7 23 33.2 41 278 -57 - 0 8 3 - 0 18 49 - 0 4 36 - 0 22 16 -0.06 - 80 0 0 - 0 24 58 7 23 27.4 40 278 -56 - 0 19 35 - 0 30 21 - 0 16 8 - 0 33 48 -0.06 - 79 0 0 - 0 36 26 7 23 21.7 39 278 -55 - 0 31 3 - 0 41 50 - 0 27 36 - 0 45 17 -0.06 - 78 0 0 - 0 47 51 7 23 16.1 38 278 -54 - 0 42 28 - 0 53 14 - 0 39 0 - 0 56 41 -0.06 - 77 0 0 - 0 59 11 7 23 10.6 37 278 -53 - 0 53 48 - 1 4 34 - 0 50 20 - 1 8 1 -0.06 - 76 0 0 - 1 10 26 7 23 5.3 36 278 -52 - 1 5 3 - 1 15 49 - 1 1 36 - 1 19 16 -0.06 - 75 0 0 - 1 21 37 7 23 0.1 35 278 -51 - 1 16 14 - 1 26 59 - 1 12 47 - 1 30 26 -0.06 - 74 0 0 - 1 32 42 7 22 55.0 34 278 -51 - 1 27 20 - 1 38 5 - 1 23 53 - 1 41 32 -0.06 - 73 0 0 - 1 43 43 7 22 50.1 33 278 -50 - 1 38 20 - 1 49 6 - 1 34 54 - 1 52 33 -0.06 - 72 0 0 - 1 54 38 7 22 45.2 32 278 -49 - 1 49 16 - 2 0 1 - 1 45 49 - 2 3 28 -0.06 - 71 0 0 - 2 5 28 7 22 40.5 31 278 -48 - 2 0 6 - 2 10 51 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4 12 25 - 3 58 16 - 4 15 51 -0.06 - 58 0 0 - 4 16 24 7 21 52.2 18 278 -36 - 4 11 3 - 4 21 45 - 4 7 37 - 4 25 11 -0.06 - 57 0 0 - 4 25 36 7 21 49.5 17 278 -35 - 4 20 15 - 4 30 57 - 4 16 49 - 4 34 23 -0.06 - 56 0 0 - 4 34 40 7 21 47.0 16 278 -34 - 4 29 19 - 4 40 1 - 4 25 53 - 4 43 27 -0.06 - 55 0 0 - 4 43 35 7 21 44.6 15 278 -33 - 4 38 14 - 4 48 56 - 4 34 48 - 4 52 22 -0.06 - 54 0 0 - 4 52 22 7 21 42.4 14 277 -32 - 4 47 1 - 4 57 42 - 4 43 35 - 5 1 8 -0.06 - 53 0 0 - 5 0 59 7 21 40.3 13 277 -31 - 4 55 39 - 5 6 20 - 4 52 13 - 5 9 46 -0.06 - 52 0 0 - 5 9 28 7 21 38.3 12 277 -30 - 5 4 8 - 5 14 49 - 5 0 42 - 5 18 14 -0.06 - 51 0 0 - 5 17 48 7 21 36.5 11 277 -29 - 5 12 27 - 5 23 8 - 5 9 2 - 5 26 34 -0.06 - 50 0 0 - 5 25 58 7 21 34.9 10 277 -28 - 5 20 38 - 5 31 18 - 5 17 12 - 5 34 44 -0.06 - 49 0 0 - 5 33 59 7 21 33.4 9 277 -27 - 5 28 39 - 5 39 19 - 5 25 13 - 5 42 44 -0.06 - 48 0 0 - 5 41 50 7 21 32.1 8 277 -26 - 5 36 30 - 5 47 10 - 5 33 5 - 5 50 35 -0.06 - 47 0 0 - 5 49 31 7 21 30.9 7 277 -25 - 5 44 11 - 5 54 51 - 5 40 46 - 5 58 16 -0.06 - 46 0 0 - 5 57 3 7 21 29.9 6 277 -24 - 5 51 43 - 6 2 23 - 5 48 18 - 6 5 48 -0.07 - 45 0 0 - 6 4 24 7 21 29.0 5 277 -23 - 5 59 4 - 6 9 44 - 5 55 39 - 6 13 9 -0.07 - 44 0 0 - 6 11 35 7 21 28.3 4 277 -22 - 6 6 16 - 6 16 55 - 6 2 51 - 6 20 20 -0.07 - 43 0 0 - 6 18 36 7 21 27.8 3 276 -21 - 6 13 17 - 6 23 56 - 6 9 52 - 6 27 21 -0.08 - 42 0 0 - 6 25 27 7 21 27.4 2 276 -20 - 6 20 7 - 6 30 46 - 6 16 42 - 6 34 11 -0.09 - 41 0 0 - 6 32 6 7 21 27.2 1 276 -20 - 6 26 47 - 6 37 26 - 6 23 22 - 6 40 50 -0.13 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: TYC 160-01274-1 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 47 26.5314 DE: +06 04 29.734 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 47 26.5314 DE: +06 04 29.734 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.0 * B mag [mag]: 11.1 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (21587) Christopynn asteroid class: approx. diameter [km]: 19 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.12210 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#49 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): 0.018", 0.004", 102.069° remarks: * orbital elements for (21587)Christopynn : Mean anomaly = 166.0229855650 deg Arg. of pericenter = 81.6962316039 deg Long. of node = 219.4993350765 deg Inclination = 12.4781096382 deg Eccentricity = 0.0694844322 Semimajor axis = 2.8484707188 AU Perihelion dist = 2.6505463483 AU Mag: H = 12.71, G = 0.15 Epoch of elements : MJD 60331.31253583 TDT (2024 Jan 22.3125) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#492023Apr27,1.58,2024,1,22,7.500848,0.010167,0.057700,-6.859076,1.208721,0.002113,0.001456,0.000001,0.000000 -131.4839,6.0484,70.34,-19.77,False TYC 160-01274-1,6.79070318,6.0749262,11.05,10.00,9.43,0.2,0,,6.81246557,6.0483510,7.32,7.44,0,0,0 21587,Christopynn,17.32,19.477,2.1221,0,0,-1.904,5.01,,1.0,0 0,165.9589,2024,1,22,81.6962,219.4993,12.4781,0.06948,2.84847,2.65055,12.71,5.0,0.15 1.320,0.0177,0.0040,102,0.0040,Known errors,1.11,0,-1,-1 20240122_1274-1,60137.03 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org