IOTA/IOTA-ES occultation update for (4131) Stasik / UCAC4 393-126783 event on 2024 Nov 23, 22:05 UT Visible from Summary ------- On 2024 Nov 23 UT, the 28.548 km diameter asteroid (4131) Stasik will occult a 11.9 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 5.78 mag to 17.70 mag (the magnitude of the asteroid) for at most 0.960 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: 98 * date and approx. time of event: 2024 Nov 23, 22:01 - 2024 Nov 23, 22:08 * geocentric midpoint of event [JD]: 2460638.42039833 * magnitude of target star: 11.93 * magnitude drop [mag]: 5.78 * estimated maximum duration [s]: 0.960 * Moon: 41 % sunlit, 143° distance * Sun: 64° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 29 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.021", 0.001", 64°) * approx speed of asteroid's shadow [km/s]: 29.6037 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 393-126783 by 4131 Stasik on 2024 Nov 23 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 178 0 0 -23 44 3 22 1 50.4 0 102 64 -23 52 7 -23 36 0 -23 57 48 -23 30 19 .... 179 0 0 -23 56 10 22 1 50.4 1 102 65 -24 4 13 -23 48 7 -24 9 54 -23 42 26 0.18 -180 0 0 -24 8 2 22 1 50.5 2 102 65 -24 16 4 -23 59 59 -24 21 45 -23 54 19 0.18 -179 0 0 -24 19 38 22 1 50.7 3 101 66 -24 27 40 -24 11 36 -24 33 20 -24 5 56 0.18 -178 0 0 -24 30 58 22 1 50.9 4 101 67 -24 39 0 -24 22 57 -24 44 40 -24 17 17 0.18 -177 0 0 -24 42 3 22 1 51.2 5 100 68 -24 50 4 -24 34 2 -24 55 45 -24 28 23 0.18 -176 0 0 -24 52 53 22 1 51.5 6 100 69 -25 0 53 -24 44 52 -25 6 33 -24 39 13 0.18 -175 0 0 -25 3 26 22 1 51.9 7 100 70 -25 11 26 -24 55 26 -25 17 6 -24 49 47 0.18 -174 0 0 -25 13 43 22 1 52.4 8 99 71 -25 21 43 -25 5 44 -25 27 22 -25 0 5 0.18 -173 0 0 -25 23 44 22 1 52.9 9 99 72 -25 31 44 -25 15 45 -25 37 23 -25 10 7 0.18 -172 0 0 -25 33 29 22 1 53.4 10 98 72 -25 41 28 -25 25 31 -25 47 7 -25 19 52 0.18 -171 0 0 -25 42 58 22 1 54.0 10 98 73 -25 50 57 -25 35 0 -25 56 35 -25 29 22 0.18 -170 0 0 -25 52 10 22 1 54.7 11 97 74 -26 0 9 -25 44 12 -26 5 47 -25 38 35 0.18 -169 0 0 -26 1 6 22 1 55.4 12 97 75 -26 9 4 -25 53 9 -26 14 42 -25 47 31 0.18 -168 0 0 -26 9 46 22 1 56.2 13 96 76 -26 17 43 -26 1 48 -26 23 21 -25 56 11 0.18 -167 0 0 -26 18 8 22 1 57.0 14 96 77 -26 26 5 -26 10 11 -26 31 42 -26 4 34 0.18 -166 0 0 -26 26 14 22 1 57.9 15 96 77 -26 34 11 -26 18 17 -26 39 48 -26 12 41 0.18 -165 0 0 -26 34 3 22 1 58.8 16 95 78 -26 41 59 -26 26 7 -26 47 36 -26 20 30 0.18 -164 0 0 -26 41 35 22 1 59.8 17 95 79 -26 49 31 -26 33 39 -26 55 8 -26 28 3 0.18 -163 0 0 -26 48 50 22 2 0.8 18 94 79 -26 56 46 -26 40 55 -27 2 22 -26 35 19 0.18 -162 0 0 -26 55 49 22 2 1.9 19 94 80 -27 3 44 -26 47 53 -27 9 20 -26 42 18 0.18 -161 0 0 -27 2 30 22 2 3.0 20 93 81 -27 10 25 -26 54 35 -27 16 1 -26 48 59 0.18 -160 0 0 -27 8 54 22 2 4.2 20 93 81 -27 16 48 -27 0 59 -27 22 24 -26 55 24 0.18 -159 0 0 -27 15 1 22 2 5.4 21 92 82 -27 22 55 -27 7 6 -27 28 30 -27 1 31 0.18 -158 0 0 -27 20 50 22 2 6.7 22 92 82 -27 28 44 -27 12 56 -27 34 20 -27 7 21 0.18 -157 0 0 -27 26 23 22 2 8.0 23 91 82 -27 34 16 -27 18 29 -27 39 51 -27 12 54 0.18 -156 0 0 -27 31 38 22 2 9.4 24 91 83 -27 39 31 -27 23 44 -27 45 6 -27 18 10 0.18 -155 0 0 -27 36 35 22 2 10.8 25 90 83 -27 44 29 -27 28 42 -27 50 3 -27 23 8 0.18 -154 0 0 -27 41 16 22 2 12.3 26 90 83 -27 49 9 -27 33 23 -27 54 43 -27 27 48 0.18 -153 0 0 -27 45 38 22 2 13.8 27 89 83 -27 53 31 -27 37 46 -27 59 6 -27 32 12 0.18 -152 0 0 -27 49 44 22 2 15.3 28 89 82 -27 57 37 -27 41 51 -28 3 11 -27 36 17 0.18 -151 0 0 -27 53 32 22 2 17.0 28 88 82 -28 1 24 -27 45 39 -28 6 58 -27 40 6 0.18 -150 0 0 -27 57 2 22 2 18.6 29 88 82 -28 4 54 -27 49 10 -28 10 28 -27 43 36 0.18 -149 0 0 -28 0 15 22 2 20.3 30 87 81 -28 8 7 -27 52 23 -28 13 41 -27 46 49 0.18 -148 0 0 -28 3 10 22 2 22.0 31 87 81 -28 11 2 -27 55 18 -28 16 36 -27 49 45 0.18 -147 0 0 -28 5 48 22 2 23.8 32 86 80 -28 13 40 -27 57 56 -28 19 13 -27 52 23 0.18 -146 0 0 -28 8 8 22 2 25.6 33 86 79 -28 16 0 -28 0 16 -28 21 33 -27 54 43 0.18 -145 0 0 -28 10 10 22 2 27.5 34 85 79 -28 18 2 -28 2 19 -28 23 35 -27 56 46 0.18 -144 0 0 -28 11 55 22 2 29.4 35 85 78 -28 19 46 -28 4 3 -28 25 20 -27 58 30 0.18 -143 0 0 -28 13 22 22 2 31.4 36 84 77 -28 21 13 -28 5 30 -28 26 47 -27 59 57 0.18 -142 0 0 -28 14 31 22 2 33.4 36 83 77 -28 22 22 -28 6 40 -28 27 56 -28 1 7 0.18 -141 0 0 -28 15 23 22 2 35.4 37 83 76 -28 23 14 -28 7 31 -28 28 47 -28 1 58 0.18 -140 0 0 -28 15 56 22 2 37.5 38 82 75 -28 23 48 -28 8 5 -28 29 21 -28 2 32 0.18 -139 0 0 -28 16 12 22 2 39.6 39 82 74 -28 24 4 -28 8 21 -28 29 37 -28 2 48 0.18 -138 0 0 -28 16 11 22 2 41.8 40 81 73 -28 24 2 -28 8 20 -28 29 35 -28 2 47 0.18 -137 0 0 -28 15 51 22 2 44.0 41 81 73 -28 23 43 -28 8 0 -28 29 16 -28 2 27 0.18 -136 0 0 -28 15 14 22 2 46.2 42 80 72 -28 23 5 -28 7 23 -28 28 39 -28 1 50 0.18 -135 0 0 -28 14 19 22 2 48.5 43 79 71 -28 22 10 -28 6 28 -28 27 44 -28 0 55 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22 22 - 6 44 46 - 6 16 31 0.19 - 36 0 0 - 6 11 13 22 8 8.7 38 260 -25 - 6 19 30 - 6 2 57 - 6 25 21 - 5 57 6 0.19 - 35 0 0 - 5 51 53 22 8 11.1 37 260 -26 - 6 0 10 - 5 43 37 - 6 6 1 - 5 37 47 0.19 - 34 0 0 - 5 32 39 22 8 13.5 36 260 -27 - 5 40 55 - 5 24 24 - 5 46 46 - 5 18 33 0.19 - 33 0 0 - 5 13 31 22 8 15.8 35 260 -28 - 5 21 47 - 5 5 16 - 5 27 37 - 4 59 26 0.19 - 32 0 0 - 4 54 30 22 8 18.0 33 259 -29 - 5 2 45 - 4 46 14 - 5 8 35 - 4 40 25 0.19 - 31 0 0 - 4 35 35 22 8 20.2 32 259 -30 - 4 43 50 - 4 27 20 - 4 49 40 - 4 21 30 0.19 - 30 0 0 - 4 16 47 22 8 22.3 31 259 -31 - 4 25 2 - 4 8 33 - 4 30 52 - 4 2 43 0.19 - 29 0 0 - 3 58 8 22 8 24.4 30 259 -32 - 4 6 22 - 3 49 54 - 4 12 12 - 3 44 4 0.19 - 28 0 0 - 3 39 36 22 8 26.4 29 259 -33 - 3 47 50 - 3 31 22 - 3 53 40 - 3 25 33 0.19 - 27 0 0 - 3 21 13 22 8 28.3 28 259 -34 - 3 29 27 - 3 13 0 - 3 35 16 - 3 7 11 0.19 - 26 0 0 - 3 2 59 22 8 30.2 27 259 -35 - 3 11 13 - 2 54 46 - 3 17 2 - 2 48 58 0.19 - 25 0 0 - 2 44 55 22 8 32.0 26 259 -36 - 2 53 8 - 2 36 42 - 2 58 56 - 2 30 53 0.19 - 24 0 0 - 2 26 59 22 8 33.7 25 258 -37 - 2 35 12 - 2 18 47 - 2 41 1 - 2 12 59 0.19 - 23 0 0 - 2 9 14 22 8 35.4 24 258 -38 - 2 17 27 - 2 1 2 - 2 23 15 - 1 55 15 0.19 - 22 0 0 - 1 51 40 22 8 37.0 23 258 -39 - 1 59 52 - 1 43 28 - 2 5 40 - 1 37 41 0.19 - 21 0 0 - 1 34 16 22 8 38.5 22 258 -40 - 1 42 28 - 1 26 5 - 1 48 15 - 1 20 18 0.19 - 20 0 0 - 1 17 3 22 8 40.0 21 258 -41 - 1 25 15 - 1 8 53 - 1 31 2 - 1 3 6 0.19 - 19 0 0 - 1 0 2 22 8 41.4 20 258 -42 - 1 8 13 - 0 51 52 - 1 14 0 - 0 46 5 0.19 - 18 0 0 - 0 43 13 22 8 42.7 19 258 -43 - 0 51 23 - 0 35 3 - 0 57 10 - 0 29 17 0.19 - 17 0 0 - 0 26 36 22 8 44.0 18 258 -44 - 0 34 45 - 0 18 26 - 0 40 32 - 0 12 40 0.19 - 16 0 0 - 0 10 11 22 8 45.1 17 258 -45 - 0 18 20 - 0 2 1 - 0 24 6 0 3 44 0.19 - 15 0 0 0 6 1 22 8 46.2 16 258 -46 - 0 2 8 0 14 10 - 0 7 53 0 19 55 0.19 - 14 0 0 0 22 0 22 8 47.3 15 258 -47 0 13 52 0 30 9 0 8 7 0 35 54 0.20 - 13 0 0 0 37 46 22 8 48.3 14 258 -48 0 29 38 0 45 54 0 23 53 0 51 39 0.20 - 12 0 0 0 53 18 22 8 49.2 13 258 -49 0 45 11 1 1 26 0 39 26 1 7 10 0.20 - 11 0 0 1 8 36 22 8 50.0 12 258 -50 1 0 29 1 16 43 0 54 45 1 22 27 0.20 - 10 0 0 1 23 41 22 8 50.7 11 258 -51 1 15 34 1 31 47 1 9 50 1 37 31 0.20 - 9 0 0 1 38 30 22 8 51.4 10 258 -52 1 30 24 1 46 36 1 24 40 1 52 20 0.20 - 8 0 0 1 53 5 22 8 52.0 8 258 -53 1 44 59 2 1 11 1 39 16 2 6 54 0.20 - 7 0 0 2 7 25 22 8 52.6 7 258 -54 1 59 20 2 15 30 1 53 37 2 21 13 0.21 - 6 0 0 2 21 30 22 8 53.1 6 258 -55 2 13 25 2 29 35 2 7 42 2 35 17 0.21 - 5 0 0 2 35 20 22 8 53.5 5 258 -56 2 27 15 2 43 24 2 21 33 2 49 6 0.21 - 4 0 0 2 48 54 22 8 53.8 4 258 -57 2 40 50 2 56 57 2 35 8 3 2 39 0.22 - 3 0 0 3 2 12 22 8 54.1 3 258 -58 2 54 8 3 10 15 2 48 27 3 15 57 0.23 - 2 0 0 3 15 14 22 8 54.3 2 258 -59 3 7 11 3 23 17 3 1 29 3 28 58 0.26 - 1 0 0 3 28 0 22 8 54.4 1 258 -60 3 19 57 3 36 3 3 14 16 3 41 43 0.31 0 0 0 3 40 30 22 8 54.4 0 258 -61 3 32 28 3 48 32 3 26 47 3 54 12 0.75 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 393-126783 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 25 12.7961 DE: -11 34 07.885 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 25 12.7959 DE: -11 34 07.886 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4131) Stasik asteroid class: approx. diameter [km]: 29 approx. diameter ["]: 0.012 distance from Earth [AU]: 3.26150 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 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): 0.021", 0.001", 64.364° remarks: * orbital elements for (4131)Stasik : Mean anomaly = 310.7491821571 deg Arg. of pericenter = 100.7765199059 deg Long. of node = 282.4594740598 deg Inclination = 12.4246426606 deg Eccentricity = 0.1050914619 Semimajor axis = 3.1640612314 AU Perihelion dist = 2.8315454110 AU Mag: H = 11.86, G = 0.15 Epoch of elements : MJD 60637.92039821 TDT (2024 Nov 23.9204) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Apr24,0.96,2024,11,23,22.089560,0.042555,-0.170654,16.218734,4.018458,0.005134,0.001611,-0.000001,0.000000 -88.0673,-11.4885,-154.68,-20.58,False UCAC4 393-126783,20.42022117,-11.5688568,12.21,11.93,11.78,0.0,0,,20.44280470,-11.4885379,5.77,5.47,0,0,0 4131,Stasik,17.70,28.548,3.2615,0,0,2.975,10.84,,1.8,0 0,310.5880,2024,11,23,100.7765,282.4595,12.4246,0.10509,3.16406,2.83155,11.85,5.0,0.15 1.353,0.0207,0.0008,64,0.0043,Known errors,0.97,0,-1,-1 20241123_126783,60140.71 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org