IOTA/IOTA-ES occultation update for (16194) Roderick / UCAC4 379-114012 event on 2024 Nov 03, 21:41 UT Visible from Summary ------- On 2024 Nov 03 UT, the 19.451 km diameter asteroid (16194) Roderick will occult a 11.8 mag star in the constellation Scutum for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.08 mag to 18.92 mag (the magnitude of the asteroid) for at most 0.570 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: 97 * date and approx. time of event: 2024 Nov 03, 21:38 - 2024 Nov 03, 21:44 * geocentric midpoint of event [JD]: 2460618.40401213 * magnitude of target star: 11.84 * magnitude drop [mag]: 7.08 * estimated maximum duration [s]: 0.570 * Moon: 5 % sunlit, 33° distance * Sun: 57° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 20 * 1 sigma uncertainty interval [path widths]: +/- 0.40 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.003", 90°) * approx speed of asteroid's shadow [km/s]: 34.1559 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 379-114012 by 16194 Roderick on 2024 Nov 3 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 -177 0 0 10 11 7 21 38 40.7 0 105 52 10 5 39 10 16 35 10 1 16 10 20 59 .... -176 0 0 9 55 34 21 38 40.7 1 105 53 9 50 6 10 1 2 9 45 42 10 5 26 0.02 -175 0 0 9 39 54 21 38 40.8 2 105 54 9 34 26 9 45 23 9 30 2 9 49 47 -0.02 -174 0 0 9 24 8 21 38 41.0 3 105 55 9 18 39 9 29 36 9 14 16 9 34 0 -0.04 -173 0 0 9 8 15 21 38 41.2 5 105 56 9 2 47 9 13 44 8 58 23 9 18 8 -0.05 -172 0 0 8 52 16 21 38 41.5 6 105 57 8 46 48 8 57 45 8 42 24 9 2 9 -0.05 -171 0 0 8 36 12 21 38 41.9 7 106 57 8 30 43 8 41 41 8 26 19 8 46 5 -0.06 -170 0 0 8 20 2 21 38 42.3 8 106 58 8 14 33 8 25 32 8 10 9 8 29 56 -0.06 -169 0 0 8 3 48 21 38 42.8 9 106 59 7 58 19 8 9 17 7 53 54 8 13 41 -0.06 -168 0 0 7 47 28 21 38 43.3 10 106 60 7 41 59 7 52 58 7 37 35 7 57 22 -0.06 -167 0 0 7 31 5 21 38 43.9 11 106 61 7 25 35 7 36 34 7 21 11 7 40 58 -0.06 -166 0 0 7 14 37 21 38 44.5 12 106 62 7 9 7 7 20 6 7 4 43 7 24 31 -0.07 -165 0 0 6 58 5 21 38 45.2 13 106 62 6 52 36 7 3 35 6 48 11 7 7 59 -0.07 -164 0 0 6 41 31 21 38 46.0 14 107 63 6 36 1 6 47 0 6 31 37 6 51 25 -0.07 -163 0 0 6 24 53 21 38 46.9 15 107 64 6 19 23 6 30 22 6 14 59 6 34 47 -0.07 -162 0 0 6 8 12 21 38 47.7 16 107 65 6 2 43 6 13 42 5 58 18 6 18 7 -0.07 -161 0 0 5 51 30 21 38 48.7 17 107 66 5 46 0 5 56 59 5 41 35 6 1 24 -0.07 -160 0 0 5 34 45 21 38 49.7 18 107 66 5 29 15 5 40 15 5 24 50 5 44 39 -0.07 -159 0 0 5 17 59 21 38 50.8 19 107 67 5 12 29 5 23 28 5 8 4 5 27 53 -0.07 -158 0 0 5 1 11 21 38 51.9 20 107 68 4 55 41 5 6 41 4 51 17 5 11 6 -0.07 -157 0 0 4 44 23 21 38 53.1 21 107 68 4 38 53 4 49 52 4 34 28 4 54 17 -0.07 -156 0 0 4 27 34 21 38 54.4 22 107 69 4 22 4 4 33 3 4 17 39 4 37 28 -0.07 -155 0 0 4 10 44 21 38 55.7 23 108 69 4 5 15 4 16 14 4 0 50 4 20 39 -0.07 -154 0 0 3 53 55 21 38 57.0 24 108 70 3 48 26 3 59 25 3 44 1 4 3 50 -0.07 -153 0 0 3 37 7 21 38 58.4 25 108 71 3 31 37 3 42 37 3 27 13 3 47 2 -0.07 -152 0 0 3 20 20 21 38 59.9 26 108 71 3 14 50 3 25 49 3 10 25 3 30 14 -0.07 -151 0 0 3 3 34 21 39 1.5 27 108 71 2 58 4 3 9 3 2 53 39 3 13 28 -0.07 -150 0 0 2 46 49 21 39 3.0 28 108 72 2 41 19 2 52 19 2 36 55 2 56 43 -0.07 -149 0 0 2 30 6 21 39 4.7 29 108 72 2 24 37 2 35 36 2 20 12 2 40 1 -0.07 -148 0 0 2 13 26 21 39 6.4 30 108 72 2 7 57 2 18 56 2 3 32 2 23 20 -0.07 -147 0 0 1 56 49 21 39 8.1 31 108 73 1 51 20 2 2 18 1 46 55 2 6 43 -0.07 -146 0 0 1 40 15 21 39 9.9 32 108 73 1 34 45 1 45 44 1 30 21 1 50 8 -0.07 -145 0 0 1 23 44 21 39 11.8 34 108 73 1 18 15 1 29 13 1 13 50 1 33 37 -0.07 -144 0 0 1 7 17 21 39 13.7 35 108 73 1 1 48 1 12 46 0 57 23 1 17 10 -0.07 -143 0 0 0 50 54 21 39 15.7 36 108 73 0 45 25 0 56 23 0 41 1 1 0 47 -0.07 -142 0 0 0 34 35 21 39 17.7 37 108 73 0 29 7 0 40 4 0 24 42 0 44 29 -0.08 -141 0 0 0 18 22 21 39 19.8 38 108 72 0 12 53 0 23 51 0 8 29 0 28 15 -0.08 -140 0 0 0 2 14 21 39 21.9 39 109 72 - 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5 42 44 - 5 31 56 - 5 47 5 - 5 27 35 -0.08 - 19 0 0 - 5 24 48 21 44 43.5 18 257 -37 - 5 30 13 - 5 19 24 - 5 34 33 - 5 15 3 -0.08 - 18 0 0 - 5 12 5 21 44 44.5 17 257 -38 - 5 17 29 - 5 6 40 - 5 21 50 - 5 2 19 -0.08 - 17 0 0 - 4 59 10 21 44 45.5 16 256 -39 - 5 4 35 - 4 53 45 - 5 8 55 - 4 49 24 -0.08 - 16 0 0 - 4 46 3 21 44 46.4 15 256 -40 - 4 51 28 - 4 40 38 - 4 55 49 - 4 36 17 -0.08 - 15 0 0 - 4 32 46 21 44 47.2 14 256 -41 - 4 38 11 - 4 27 20 - 4 42 32 - 4 22 59 -0.08 - 14 0 0 - 4 19 17 21 44 48.0 13 256 -42 - 4 24 43 - 4 13 52 - 4 29 4 - 4 9 30 -0.08 - 13 0 0 - 4 5 39 21 44 48.8 12 256 -43 - 4 11 4 - 4 0 13 - 4 15 26 - 3 55 51 -0.07 - 12 0 0 - 3 51 49 21 44 49.4 11 256 -44 - 3 57 15 - 3 46 23 - 4 1 37 - 3 42 2 -0.07 - 11 0 0 - 3 37 50 21 44 50.0 10 256 -45 - 3 43 16 - 3 32 24 - 3 47 38 - 3 28 2 -0.07 - 10 0 0 - 3 23 41 21 44 50.6 9 256 -46 - 3 29 7 - 3 18 15 - 3 33 29 - 3 13 53 -0.07 - 9 0 0 - 3 9 22 21 44 51.1 8 256 -47 - 3 14 49 - 3 3 56 - 3 19 11 - 2 59 34 -0.07 - 8 0 0 - 2 54 55 21 44 51.5 7 256 -48 - 3 0 21 - 2 49 28 - 3 4 44 - 2 45 6 -0.07 - 7 0 0 - 2 40 18 21 44 51.9 6 256 -49 - 2 45 45 - 2 34 51 - 2 50 7 - 2 30 29 -0.07 - 6 0 0 - 2 25 33 21 44 52.2 5 256 -50 - 2 31 0 - 2 20 5 - 2 35 22 - 2 15 43 -0.07 - 5 0 0 - 2 10 39 21 44 52.5 4 256 -51 - 2 16 6 - 2 5 11 - 2 20 29 - 2 0 49 -0.07 - 4 0 0 - 1 55 37 21 44 52.7 3 256 -52 - 2 1 4 - 1 50 9 - 2 5 27 - 1 45 46 -0.06 - 3 0 0 - 1 40 27 21 44 52.8 2 256 -53 - 1 45 55 - 1 35 0 - 1 50 18 - 1 30 37 -0.05 - 2 0 0 - 1 25 10 21 44 52.9 1 256 -54 - 1 30 38 - 1 19 42 - 1 35 1 - 1 15 19 -0.01 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 379-114012 * constellation : Scutum * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 31 34.8816 DE: -14 20 44.922 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 31 34.8816 DE: -14 20 44.922 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.8 * B mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (16194) Roderick asteroid class: approx. diameter [km]: 19 approx. diameter ["]: 0.008 distance from Earth [AU]: 3.57370 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#48 date of fit: 2023 Apr 25 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): 0.015", 0.003", 90.312° remarks: * orbital elements for (16194)Roderick : Mean anomaly = 79.6896059684 deg Arg. of pericenter = 36.3456242178 deg Long. of node = 163.7516885514 deg Inclination = 13.0202137900 deg Eccentricity = 0.1106259611 Semimajor axis = 3.1628294840 AU Perihelion dist = 2.8129384325 AU Mag: H = 12.83, G = 0.15 Epoch of elements : MJD 60617.90401204 TDT (2024 Nov 03.9040) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#482023Apr25,0.57,2024,11,3,21.696291,0.007766,0.080573,19.175917,-1.986448,0.004902,0.000801,-0.000001,0.000000 -90.8366,-14.3284,-149.55,-15.43,False UCAC4 379-114012,18.52635605,-14.3458117,12.08,11.84,11.71,0.0,0,,18.54962977,-14.3283913,7.08,6.76,0,0,0 16194,Roderick,18.92,19.451,3.5737,0,0,3.247,-4.88,,1.2,0 0,79.5312,2024,11,3,36.3456,163.7517,13.0202,0.11063,3.16283,2.81294,12.83,5.0,0.15 1.402,0.0147,0.0027,90,0.0030,Known errors,1.07,0,-1,-1 20241103_114012,60140.68 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:17 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org