IOTA/IOTA-ES occultation update for (953) Painleva / UCAC4 280-220988 event on 2024 Jul 22, 19:07 UT Visible from Summary ------- On 2024 Jul 22 UT, the 27.224 km diameter asteroid (953) Painleva will occult a 11.4 mag star in the constellation Microscopium for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 1.72 mag to 12.91 mag (the magnitude of the asteroid) for at most 3.540 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: 99 * date and approx. time of event: 2024 Jul 22, 19:00 - 2024 Jul 22, 19:13 * geocentric midpoint of event [JD]: 2460514.29664704 * magnitude of target star: 11.44 * magnitude drop [mag]: 1.72 * estimated maximum duration [s]: 3.540 * Moon: 97 % sunlit, 19° distance * Sun: 164° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 64 * 1 sigma uncertainty interval [path widths]: +/- 0.28 * 1 sigma uncertainty interval [seconds]: +/- 3.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.030, +/- 0.011) * 1 sigma uncertainty ellipse (major, minor, PA): (0.031", 0.008", 74°) * approx speed of asteroid's shadow [km/s]: 7.6936 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 280-220988 by 953 Painleva on 2024 Jul 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 22 0 0 35 47 39 19 13 1.4 0 134 -16 36 12 38 35 23 11 .. .. .. 35 9 41 .... 23 0 0 35 2 45 19 13 0.8 2 135 -17 35 26 58 34 39 1 35 40 46 34 25 55 -1.12 24 0 0 34 20 19 19 12 59.6 3 135 -18 34 43 51 33 57 14 34 57 15 33 44 29 -1.59 25 0 0 33 40 12 19 12 57.7 4 136 -19 34 3 7 33 17 42 34 16 9 33 5 16 -1.78 26 0 0 33 2 17 19 12 55.2 5 136 -20 33 24 39 32 40 18 33 37 22 32 28 9 -1.88 27 0 0 32 26 27 19 12 52.1 6 137 -21 32 48 19 32 4 57 33 0 44 31 53 3 -1.94 28 0 0 31 52 36 19 12 48.5 7 137 -22 32 14 1 31 31 32 32 26 10 31 19 53 -1.98 29 0 0 31 20 41 19 12 44.3 8 138 -23 31 41 40 31 0 0 31 53 35 30 48 33 -2.01 30 0 0 30 50 35 19 12 39.7 9 138 -24 31 11 12 30 30 17 31 22 53 30 19 2 -2.04 31 0 0 30 22 17 19 12 34.6 9 139 -25 30 42 33 30 2 18 30 54 2 29 51 13 -2.05 32 0 0 29 55 41 19 12 29.0 10 140 -26 30 15 38 29 36 0 30 26 57 29 25 5 -2.06 33 0 0 29 30 45 19 12 23.1 11 140 -27 29 50 25 29 11 21 30 1 34 29 0 35 -2.07 34 0 0 29 7 26 19 12 16.7 12 141 -28 29 26 50 28 48 17 29 37 50 28 37 39 -2.08 35 0 0 28 45 42 19 12 9.9 13 141 -29 29 4 52 28 26 47 29 15 43 28 16 16 -2.09 36 0 0 28 25 30 19 12 2.8 14 142 -30 28 44 27 28 6 47 28 55 11 27 56 24 -2.09 37 0 0 28 6 48 19 11 55.3 14 142 -30 28 25 34 27 48 17 28 36 11 27 38 0 -2.10 38 0 0 27 49 35 19 11 47.5 15 143 -31 28 8 10 27 31 14 28 18 40 27 21 3 -2.10 39 0 0 27 33 49 19 11 39.3 16 144 -32 27 52 13 27 15 37 28 2 38 27 5 31 -2.10 40 0 0 27 19 27 19 11 30.9 17 144 -33 27 37 43 27 1 24 27 48 3 26 51 22 -2.10 41 0 0 27 6 29 19 11 22.1 17 145 -33 27 24 37 26 48 34 27 34 53 26 38 36 -2.11 42 0 0 26 54 54 19 11 13.1 18 145 -34 27 12 55 26 37 5 27 23 7 26 27 12 -2.11 43 0 0 26 44 41 19 11 3.8 19 146 -35 27 2 36 26 26 58 27 12 43 26 17 7 -2.11 44 0 0 26 35 48 19 10 54.2 19 147 -35 26 53 37 26 18 10 27 3 42 26 8 22 -2.11 45 0 0 26 28 14 19 10 44.4 20 147 -36 26 45 59 26 10 41 26 56 1 26 0 56 -2.11 46 0 0 26 21 59 19 10 34.3 20 148 -36 26 39 40 26 4 30 26 49 40 25 54 47 -2.11 47 0 0 26 17 3 19 10 24.0 21 149 -37 26 34 41 25 59 37 26 44 39 25 49 55 -2.11 48 0 0 26 13 24 19 10 13.5 21 149 -37 26 31 0 25 56 0 26 40 56 25 46 20 -2.11 49 0 0 26 11 3 19 10 2.8 22 150 -38 26 28 37 25 53 41 26 38 32 25 44 2 -2.11 50 0 0 26 9 58 19 9 51.9 22 151 -38 26 27 31 25 52 37 26 37 26 25 42 59 -2.11 51 0 0 26 10 10 19 9 40.8 23 151 -39 26 27 42 25 52 50 26 37 37 25 43 11 -2.11 52 0 0 26 11 39 19 9 29.5 23 152 -39 26 29 11 25 54 18 26 39 5 25 44 39 -2.11 53 0 0 26 14 23 19 9 18.0 23 153 -39 26 31 56 25 57 1 26 41 51 25 47 22 -2.11 54 0 0 26 18 24 19 9 6.4 24 154 -40 26 35 58 26 1 1 26 45 55 25 51 21 -2.11 55 0 0 26 23 41 19 8 54.6 24 155 -40 26 41 18 26 6 16 26 51 15 25 56 35 -2.12 56 0 0 26 30 15 19 8 42.7 24 155 -40 26 47 55 26 12 47 26 57 54 26 3 4 -2.12 57 0 0 26 38 6 19 8 30.6 24 156 -40 26 55 49 26 20 34 27 5 50 26 10 49 -2.12 58 0 0 26 47 13 19 8 18.4 25 157 -41 27 5 1 26 29 37 27 15 5 26 19 51 -2.12 59 0 0 26 57 39 19 8 6.1 25 158 -41 27 15 32 26 39 58 27 25 39 26 30 9 -2.12 60 0 0 27 9 23 19 7 53.7 25 159 -41 27 27 22 26 51 37 27 37 32 26 41 44 -2.12 61 0 0 27 22 26 19 7 41.2 25 159 -41 27 40 32 27 4 33 27 50 46 26 54 38 -2.13 62 0 0 27 36 49 19 7 28.6 25 160 -41 27 55 2 27 18 49 28 5 20 27 8 49 -2.13 63 0 0 27 52 33 19 7 15.9 25 161 -41 28 10 54 27 34 25 28 21 17 27 24 21 -2.13 64 0 0 28 9 39 19 7 3.1 25 162 -41 28 28 9 27 51 21 28 38 37 27 41 12 -2.13 65 0 0 28 28 7 19 6 50.2 25 163 -41 28 46 47 28 9 40 28 57 22 27 59 25 -2.14 66 0 0 28 47 59 19 6 37.3 25 164 -41 29 6 51 28 29 21 29 17 32 28 19 1 -2.14 67 0 0 29 9 17 19 6 24.4 25 165 -40 29 28 21 28 50 27 29 39 9 28 40 0 -2.14 68 0 0 29 32 3 19 6 11.4 25 165 -40 29 51 20 29 13 0 30 2 16 29 2 26 -2.15 69 0 0 29 56 17 19 5 58.4 25 166 -40 30 15 49 29 37 0 30 26 54 29 26 18 -2.15 70 0 0 30 22 2 19 5 45.4 24 167 -39 30 41 52 30 2 30 30 53 5 29 51 40 -2.15 71 0 0 30 49 22 19 5 32.4 24 168 -39 31 9 29 30 29 33 31 20 53 30 18 33 -2.16 72 0 0 31 18 17 19 5 19.4 24 169 -39 31 38 43 30 58 9 31 50 19 30 46 59 -2.16 73 0 0 31 48 50 19 5 6.4 23 170 -38 32 9 38 31 28 22 32 21 26 31 17 1 -2.17 74 0 0 32 21 6 19 4 53.5 23 171 -38 32 42 17 32 0 16 32 54 19 31 48 43 -2.17 75 0 0 32 55 8 19 4 40.6 23 172 -37 33 16 44 32 33 52 33 29 0 32 22 7 -2.18 76 0 0 33 30 57 19 4 27.8 22 172 -37 33 53 1 33 9 15 34 5 34 32 57 15 -2.18 77 0 0 34 8 42 19 4 15.0 22 173 -36 34 31 18 33 46 31 34 44 9 33 34 14 -2.19 78 0 0 34 48 27 19 4 2.4 21 174 -35 35 11 37 34 25 43 35 24 48 34 13 10 -2.19 79 0 0 35 30 18 19 3 49.9 20 175 -34 35 54 7 35 6 58 36 7 40 34 54 6 -2.20 80 0 0 36 14 23 19 3 37.5 20 176 -34 36 38 55 35 50 22 36 52 54 35 37 8 -2.21 81 0 0 37 0 50 19 3 25.3 19 177 -33 37 26 9 36 36 4 37 40 36 36 22 25 -2.22 82 0 0 37 49 46 19 3 13.3 18 178 -32 38 15 59 37 24 10 38 30 58 37 10 4 -2.22 83 0 0 38 41 24 19 3 1.4 17 178 -31 39 8 40 38 14 51 39 24 16 38 0 16 -2.23 84 0 0 39 36 0 19 2 49.9 16 179 -30 40 4 27 39 8 21 40 20 46 38 53 11 -2.24 85 0 0 40 33 50 19 2 38.6 16 180 -29 41 3 40 40 4 56 41 20 49 39 49 5 -2.25 86 0 0 41 35 16 19 2 27.6 14 181 -28 42 6 44 41 4 53 42 24 52 40 48 16 -2.26 87 0 0 42 40 47 19 2 17.0 13 182 -27 43 14 13 42 8 38 43 33 35 41 51 6 -2.28 88 0 0 43 51 3 19 2 6.8 12 183 -25 44 26 56 43 16 44 44 47 48 42 58 6 -2.30 89 0 0 45 6 54 19 1 57.1 11 183 -24 45 45 53 44 29 54 46 8 43 44 9 55 -2.32 90 0 0 46 29 38 19 1 48.0 9 184 -22 47 12 44 45 49 9 47 38 15 45 27 27 -2.35 91 0 0 48 1 17 19 1 39.5 8 185 -21 48 50 16 47 16 3 49 19 47 46 52 3 -2.40 92 0 0 49 45 23 19 1 32.0 6 186 -19 50 43 42 48 53 8 51 20 0 48 25 54 -2.49 93 0 0 51 49 16 19 1 25.7 4 186 -17 53 5 55 50 45 6 53 58 13 50 12 44 -2.72 94 0 0 54 35 4 19 1 21.6 1 187 -14 .. .. .. 53 2 51 .. .. .. 52 20 36 -4.55 95 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 55 15 28 .... Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: UCAC4 280-220988 * constellation : Microscopium * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 44 45.3421 DE: -34 11 08.200 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 44 45.3422 DE: -34 11 08.201 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.4 * B mag [mag]: 11.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (953) Painleva asteroid class: approx. diameter [km]: 27 approx. diameter ["]: 0.030 distance from Earth [AU]: 1.26930 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#69 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): 0.031", 0.008", 74.387° remarks: * orbital elements for (953)Painleva : Mean anomaly = 4.3163362725 deg Arg. of pericenter = 259.7033581636 deg Long. of node = 36.3768810565 deg Inclination = 8.6597019985 deg Eccentricity = 0.1889721743 Semimajor axis = 2.7874458191 AU Perihelion dist = 2.2606961220 AU Mag: H = 10.09, G = 0.15 Epoch of elements : MJD 60513.79664779 TDT (2024 Jul 22.7966) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#692023Apr24,3.54,2024,7,22,19.119529,-0.306959,0.850902,-4.084845,-1.473434,-0.000780,0.001245,0.000001,0.000000 83.7634,-34.0955,-105.16,20.05,False UCAC4 280-220988,20.74592836,-34.1856111,11.74,11.44,11.28,0.0,0,,20.77200978,-34.0955365,1.72,1.49,0,0,0 953,Painleva,12.91,27.224,1.2693,0,0,-2.278,-10.20,,1.4,0 0,4.1476,2024,7,22,259.7034,36.3769,8.6597,0.18897,2.78745,2.26070,10.09,5.0,0.15 1.280,0.0307,0.0080,74,0.0083,Known errors,1.31,0,-1,-1 20240722_220988,60140.21 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:09 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org