IOTA/IOTA-ES occultation update for (88263) 2001 KQ1 / UCAC4 593-003230 event on 2024 Nov 14, 11:31 UT Visible from Summary ------- On 2024 Nov 14 UT, the 5.69307252028566 km diameter asteroid (88263) 2001 KQ1 will occult a 9.3 mag star in the constellation Pisces for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.03 mag to 16.34 mag (the magnitude of the asteroid) for at most 0.310 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: 29 * date and approx. time of event: 2024 Nov 14, 11:27 - 2024 Nov 14, 11:34 * geocentric midpoint of event [JD]: 2460628.97996667 * magnitude of target star: 9.31 * magnitude drop [mag]: 7.03 * estimated maximum duration [s]: 0.310 * Moon: 97 % sunlit, 17° distance * Sun: 150° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 9 * 1 sigma uncertainty interval [path widths]: +/- 2.30 * 1 sigma uncertainty interval [seconds]: +/- 0.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.032, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.032", 0.007", 100°) * approx speed of asteroid's shadow [km/s]: 18.8218 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 593-003230 by 88263 2001 KQ1 on 2024 Nov 14 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 ' " Longitude Longitude Longitude Longitude -147 50 17 -41 0 0 11 34 48.7 1 310 -25 -147 55 9 -147 45 24 -148 17 22 -147 22 45 .... -149 16 46 -40 0 0 11 34 48.3 2 311 -26 -149 21 20 -149 12 12 -149 42 9 -148 51 2 -0.79 -150 34 34 -39 0 0 11 34 47.7 4 312 -27 -150 38 53 -150 30 16 -150 58 33 -150 10 17 -0.96 -151 45 1 -38 0 0 11 34 46.8 5 313 -29 -151 49 7 -151 40 56 -152 7 49 -151 21 58 -1.03 -152 49 8 -37 0 0 11 34 45.7 6 313 -30 -152 53 3 -152 45 13 -153 10 55 -152 27 7 -1.07 -153 47 43 -36 0 0 11 34 44.3 8 314 -31 -153 51 28 -153 43 57 -154 8 37 -153 26 36 -1.09 -154 41 23 -35 0 0 11 34 42.8 9 314 -32 -154 45 0 -154 37 46 -155 1 31 -154 21 4 -1.11 -155 30 40 -34 0 0 11 34 41.0 10 315 -34 -155 34 10 -155 27 11 -155 50 8 -155 11 3 -1.12 -156 16 1 -33 0 0 11 34 39.1 11 315 -35 -156 19 24 -156 12 38 -156 34 53 -155 57 0 -1.13 -156 57 46 -32 0 0 11 34 37.0 12 315 -36 -157 1 3 -156 54 29 -157 16 5 -156 39 18 -1.14 -157 36 14 -31 0 0 11 34 34.7 13 316 -37 -157 39 26 -157 33 2 -157 54 5 -157 18 15 -1.15 -158 11 41 -30 0 0 11 34 32.3 14 316 -38 -158 14 48 -158 8 33 -158 29 5 -157 54 9 -1.15 -158 44 20 -29 0 0 11 34 29.7 15 316 -39 -158 47 22 -158 41 17 -159 1 21 -158 27 12 -1.16 -159 14 23 -28 0 0 11 34 27.0 16 316 -40 -159 17 22 -159 11 24 -159 31 2 -158 57 37 -1.16 -159 42 0 -27 0 0 11 34 24.1 17 316 -42 -159 44 56 -159 39 5 -159 58 20 -159 25 34 -1.16 -160 7 22 -26 0 0 11 34 21.1 18 316 -43 -160 10 14 -160 4 29 -160 23 24 -159 51 14 -1.17 -160 30 34 -25 0 0 11 34 18.0 19 316 -44 -160 33 24 -160 27 45 -160 46 20 -160 14 43 -1.17 -160 51 46 -24 0 0 11 34 14.8 20 316 -45 -160 54 32 -160 48 59 -161 7 17 -160 36 9 -1.17 -161 11 2 -23 0 0 11 34 11.4 21 316 -46 -161 13 46 -161 8 17 -161 26 19 -160 55 39 -1.17 -161 28 28 -22 0 0 11 34 7.9 22 316 -47 -161 31 10 -161 25 46 -161 43 33 -161 13 18 -1.17 -161 44 10 -21 0 0 11 34 4.4 23 316 -48 -161 46 50 -161 41 30 -161 59 4 -161 29 11 -1.17 -161 58 11 -20 0 0 11 34 0.6 24 316 -49 -162 0 49 -161 55 33 -162 12 55 -161 43 23 -1.17 -162 10 37 -19 0 0 11 33 56.8 25 316 -50 -162 13 13 -162 8 0 -162 25 10 -161 55 58 -1.18 -162 21 29 -18 0 0 11 33 52.9 26 316 -51 -162 24 4 -162 18 54 -162 35 54 -162 6 59 -1.18 -162 30 52 -17 0 0 11 33 48.9 27 316 -52 -162 33 25 -162 28 18 -162 45 9 -162 16 30 -1.18 -162 38 48 -16 0 0 11 33 44.7 27 315 -53 -162 41 20 -162 36 15 -162 52 58 -162 24 33 -1.18 -162 45 19 -15 0 0 11 33 40.5 28 315 -54 -162 47 50 -162 42 48 -162 59 23 -162 31 10 -1.18 -162 50 28 -14 0 0 11 33 36.2 29 315 -55 -162 52 58 -162 47 57 -163 4 27 -162 36 25 -1.18 -162 54 16 -13 0 0 11 33 31.7 30 314 -56 -162 56 45 -162 51 47 -163 8 10 -162 40 18 -1.18 -162 56 45 -12 0 0 11 33 27.2 30 314 -57 -162 59 14 -162 54 17 -163 10 36 -162 42 52 -1.18 -162 57 57 -11 0 0 11 33 22.6 31 314 -57 -163 0 25 -162 55 29 -163 11 44 -162 44 7 -1.18 -162 57 52 -10 0 0 11 33 17.9 32 313 -58 -163 0 20 -162 55 25 -163 11 36 -162 44 5 1.18 -162 56 32 - 9 0 0 11 33 13.1 33 313 -59 -162 58 59 -162 54 5 -163 10 13 -162 42 47 1.18 -162 53 56 - 8 0 0 11 33 8.2 33 312 -60 -162 56 23 -162 51 30 -163 7 36 -162 40 13 1.18 -162 50 6 - 7 0 0 11 33 3.2 34 312 -61 -162 52 33 -162 47 40 -163 3 45 -162 36 24 1.18 -162 45 2 - 6 0 0 11 32 58.1 34 311 -62 -162 47 28 -162 42 35 -162 58 40 -162 31 20 1.18 -162 38 43 - 5 0 0 11 32 52.9 35 311 -63 -162 41 10 -162 36 17 -162 52 21 -162 25 2 1.18 -162 31 10 - 4 0 0 11 32 47.7 36 310 -63 -162 33 37 -162 28 44 -162 44 49 -162 17 28 1.18 -162 22 22 - 3 0 0 11 32 42.4 36 309 -64 -162 24 49 -162 19 55 -162 36 2 -162 8 39 1.18 -162 12 19 - 2 0 0 11 32 37.0 37 309 -65 -162 14 46 -162 9 52 -162 26 0 -161 58 33 1.18 -162 0 59 - 1 0 0 11 32 31.5 37 308 -66 -162 3 27 -161 58 32 -162 14 43 -161 47 11 1.18 -161 48 22 0 0 0 11 32 25.9 38 307 -66 -161 50 50 -161 45 54 -162 2 10 -161 34 31 1.17 -161 34 27 1 0 0 11 32 20.2 38 307 -67 -161 36 56 -161 31 58 -161 48 18 -161 20 32 1.17 -161 19 12 2 0 0 11 32 14.5 38 306 -68 -161 21 41 -161 16 42 -161 33 7 -161 5 13 1.17 -161 2 35 3 0 0 11 32 8.7 39 305 -68 -161 5 5 -161 0 4 -161 16 35 -160 48 30 1.17 -160 44 34 4 0 0 11 32 2.8 39 304 -69 -160 47 5 -160 42 2 -160 58 40 -160 30 23 1.17 -160 25 6 5 0 0 11 31 56.8 39 304 -69 -160 27 39 -160 22 34 -160 39 19 -160 10 49 1.17 -160 4 10 6 0 0 11 31 50.8 40 303 -69 -160 6 44 -160 1 36 -160 18 30 -159 49 45 1.17 -159 41 42 7 0 0 11 31 44.7 40 302 -70 -159 44 17 -159 39 6 -159 56 11 -159 27 9 1.17 -159 17 38 8 0 0 11 31 38.4 40 301 -70 -159 20 15 -159 15 1 -159 32 16 -159 2 56 1.17 -158 51 55 9 0 0 11 31 32.2 40 300 -70 -158 54 34 -158 49 16 -159 6 44 -158 37 2 1.17 -158 24 29 10 0 0 11 31 25.8 40 299 -70 -158 27 10 -158 21 47 -158 39 28 -158 9 24 1.17 -157 55 13 11 0 0 11 31 19.3 40 299 -70 -157 57 56 -157 52 30 -158 10 25 -157 39 55 1.17 -157 24 3 12 0 0 11 31 12.8 41 298 -70 -157 26 49 -157 21 17 -157 39 29 -157 8 31 1.17 Latitude Latitude Latitude Latitude -157 0 0 12 43 52 11 31 8.0 41 297 -70 12 48 51 12 38 52 13 11 33 12 15 39 1.17 -156 0 0 14 25 19 11 30 56.6 40 296 -70 14 29 57 14 20 41 14 51 2 13 59 10 1.17 -155 0 0 15 57 4 11 30 46.2 40 294 -69 16 1 25 15 52 43 16 21 13 15 32 34 1.17 -154 0 0 17 20 45 11 30 36.4 40 293 -68 17 24 51 17 16 38 17 43 36 16 57 35 1.17 -153 0 0 18 37 32 11 30 27.3 40 292 -68 18 41 26 18 33 37 18 59 18 18 15 30 1.17 -152 0 0 19 48 20 11 30 18.7 39 292 -67 19 52 4 19 44 35 20 9 10 19 27 16 1.17 -151 0 0 20 53 51 11 30 10.6 39 291 -66 20 57 26 20 50 15 21 13 52 20 33 37 1.17 -150 0 0 21 54 40 11 30 2.9 38 290 -65 21 58 7 21 51 11 22 13 59 21 35 9 1.17 -149 0 0 22 51 15 11 29 55.7 38 290 -64 22 54 36 22 47 53 23 9 56 22 32 23 1.17 -148 0 0 23 43 59 11 29 48.7 37 289 -63 23 47 14 23 40 43 24 2 7 23 25 41 1.17 -147 0 0 24 33 12 11 29 42.2 37 289 -62 24 36 22 24 30 2 24 50 51 24 15 25 1.17 -146 0 0 25 19 11 11 29 35.9 36 288 -61 25 22 16 25 16 6 25 36 23 25 1 51 1.17 -145 0 0 26 2 10 11 29 29.9 35 288 -60 26 5 11 25 59 9 26 18 59 25 45 15 1.17 -144 0 0 26 42 22 11 29 24.1 35 288 -59 26 45 19 26 39 25 26 58 49 26 25 49 1.17 -143 0 0 27 19 58 11 29 18.6 34 288 -58 27 22 51 27 17 5 27 36 5 27 3 45 1.17 -142 0 0 27 55 7 11 29 13.3 33 288 -57 27 57 57 27 52 17 28 10 56 27 39 12 1.17 -141 0 0 28 27 57 11 29 8.2 33 288 -56 28 30 44 28 25 10 28 43 30 28 12 19 1.17 -140 0 0 28 58 37 11 29 3.3 32 288 -55 29 1 21 28 55 53 29 13 55 28 43 14 1.17 -139 0 0 29 27 13 11 28 58.6 31 288 -54 29 29 54 29 24 31 29 42 16 29 12 3 1.17 -138 0 0 29 53 50 11 28 54.1 31 288 -54 29 56 29 29 51 10 30 8 41 29 38 53 1.17 -137 0 0 30 18 34 11 28 49.7 30 288 -53 30 21 12 30 15 56 30 33 14 30 3 49 1.18 -136 0 0 30 41 30 11 28 45.6 29 288 -52 30 44 6 30 38 54 30 56 0 30 26 55 1.18 -135 0 0 31 2 42 11 28 41.5 29 288 -51 31 5 16 31 0 8 31 17 2 30 48 17 1.18 -134 0 0 31 22 13 11 28 37.6 28 288 -50 31 24 46 31 19 41 31 36 25 31 7 57 1.18 -133 0 0 31 40 8 11 28 33.8 27 289 -49 31 42 39 31 37 37 31 54 12 31 26 0 1.18 -132 0 0 31 56 29 11 28 30.2 27 289 -48 31 58 59 31 53 59 32 10 26 31 42 27 1.18 -131 0 0 32 11 18 11 28 26.7 26 289 -47 32 13 47 32 8 49 32 25 9 31 57 23 1.18 -130 0 0 32 24 39 11 28 23.3 25 289 -47 32 27 7 32 22 11 32 38 24 32 10 49 1.18 -129 0 0 32 36 33 11 28 20.0 24 290 -46 32 38 59 32 34 6 32 50 13 32 22 48 1.18 -128 0 0 32 47 1 11 28 16.9 24 290 -45 32 49 28 32 44 35 33 0 38 32 33 21 1.18 -127 0 0 32 56 7 11 28 13.8 23 290 -44 32 58 32 32 53 41 33 9 40 32 42 30 1.19 -126 0 0 33 3 50 11 28 10.9 22 291 -43 33 6 15 33 1 25 33 17 20 32 50 16 1.19 -125 0 0 33 10 12 11 28 8.0 22 291 -42 33 12 37 33 7 48 33 23 40 32 56 41 1.19 -124 0 0 33 15 14 11 28 5.3 21 291 -41 33 17 38 33 12 50 33 28 40 33 1 45 1.19 -123 0 0 33 18 57 11 28 2.6 20 292 -41 33 21 21 33 16 33 33 32 21 33 5 29 1.19 -122 0 0 33 21 20 11 28 0.1 19 292 -40 33 23 44 33 18 56 33 34 44 33 7 53 1.19 -121 0 0 33 22 25 11 27 57.6 19 293 -39 33 24 49 33 20 1 33 35 49 33 8 58 1.19 -120 0 0 33 22 12 11 27 55.3 18 293 -38 33 24 35 33 19 48 33 35 35 33 8 44 1.20 -119 0 0 33 20 39 11 27 53.0 17 294 -37 33 23 3 33 18 15 33 34 4 33 7 11 1.20 -118 0 0 33 17 47 11 27 50.8 16 294 -37 33 20 12 33 15 23 33 31 14 33 4 17 1.20 -117 0 0 33 13 36 11 27 48.8 15 294 -36 33 16 1 33 11 11 33 27 4 33 0 4 1.20 -116 0 0 33 8 4 11 27 46.8 15 295 -35 33 10 29 33 5 39 33 21 35 32 54 29 1.20 -115 0 0 33 1 11 11 27 44.9 14 295 -34 33 3 37 32 58 45 33 14 45 32 47 33 1.21 -114 0 0 32 52 56 11 27 43.1 13 296 -33 32 55 22 32 50 29 33 6 34 32 39 14 1.21 -113 0 0 32 43 16 11 27 41.4 12 296 -32 32 45 43 32 40 49 32 56 59 32 29 29 1.21 -112 0 0 32 32 11 11 27 39.8 11 297 -32 32 34 39 32 29 43 32 45 59 32 18 19 1.22 -111 0 0 32 19 38 11 27 38.3 11 297 -31 32 22 7 32 17 9 32 33 32 32 5 40 1.22 -110 0 0 32 5 36 11 27 36.9 10 298 -30 32 8 6 32 3 5 32 19 36 31 51 31 1.23 -109 0 0 31 50 1 11 27 35.6 9 298 -29 31 52 33 31 47 29 32 4 9 31 35 49 1.23 -108 0 0 31 32 51 11 27 34.4 8 299 -28 31 35 24 31 30 18 31 47 7 31 18 31 1.24 -107 0 0 31 14 3 11 27 33.3 7 299 -27 31 16 38 31 11 28 31 28 28 30 59 33 1.25 -106 0 0 30 53 33 11 27 32.3 6 300 -26 30 56 9 30 50 56 31 8 7 30 38 53 1.26 -105 0 0 30 31 16 11 27 31.4 5 300 -25 30 33 55 30 28 38 30 46 2 30 16 25 1.28 -104 0 0 30 7 9 11 27 30.7 4 301 -25 30 9 50 30 4 28 30 22 7 29 52 6 1.30 -103 0 0 29 41 6 11 27 30.1 3 301 -24 29 43 50 29 38 23 29 56 18 29 25 50 1.34 -102 0 0 29 13 2 11 27 29.7 2 302 -23 29 15 48 29 10 16 29 28 28 28 57 30 1.41 -101 0 0 28 42 49 11 27 29.3 1 302 -22 28 45 38 28 40 0 28 58 31 28 27 1 1.59 -100 0 0 28 10 21 11 27 29.2 0 303 -21 28 13 13 28 7 29 28 26 20 27 54 15 2.99 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 593-003230 * constellation : Pisces * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 01 16 10.8292 DE: +28 35 53.197 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 01 16 10.8291 DE: +28 35 53.198 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.3 * B mag [mag]: 10.2 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (88263) 2001 KQ1 asteroid class: approx. diameter [km]: 6 approx. diameter ["]: 0.014 distance from Earth [AU]: 0.57170 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#311 date of fit: 2023 Jul 11 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): 0.032", 0.007", 99.816° remarks: * orbital elements for (88263)2001 KQ1 : Mean anomaly = 329.0961695395 deg Arg. of pericenter = 241.5706031056 deg Long. of node = 232.8162979349 deg Inclination = 38.7929341021 deg Eccentricity = 0.4326026133 Semimajor axis = 2.0966347715 AU Perihelion dist = 1.1896250903 AU Mag: H = 15.69, G = 0.15 Epoch of elements : MJD 60628.47996237 TDT (2024 Nov 14.4800) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#3112023Jul11,0.31,2024,11,14,11.519200,0.751777,-0.109928,-1.537108,-10.511753,0.002146,-0.000499,0.000001,0.000001 152.5429,28.7322,3.34,-18.42,False UCAC4 593-003230,1.26967478,28.5981104,10.18,9.31,8.84,0.2,0,,1.29278383,28.7321683,7.03,7.05,0,0,0 88263,2001 KQ1,16.34,5.776,0.5717,0,0,-1.795,-161.75,,0.4,0 0,328.9403,2024,11,14,241.5706,232.8163,38.7929,0.43260,2.09663,1.18963,15.69,5.0,0.15 3.299,0.0320,0.0067,100,0.0320,Known errors,1.09,0,-1,-1 20241114_003230,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:45 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org