IOTA/IOTA-ES occultation update for (10514) Harlow / UCAC4 337-192076 event on 2024 Nov 15, 23:08 UT Visible from Summary ------- On 2024 Nov 15 UT, the 14.465 km diameter asteroid (10514) Harlow will occult a 11.7 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.91 mag to 18.58 mag (the magnitude of the asteroid) for at most 0.430 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: 94 * date and approx. time of event: 2024 Nov 15, 23:05 - 2024 Nov 15, 23:11 * geocentric midpoint of event [JD]: 2460630.46439034 * magnitude of target star: 11.67 * magnitude drop [mag]: 6.91 * estimated maximum duration [s]: 0.430 * Moon: 100 % sunlit, 121° distance * Sun: 60° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.45 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.003", 80°) * approx speed of asteroid's shadow [km/s]: 33.3188 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 337-192076 by 10514 Harlow on 2024 Nov 15 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 161 0 0 - 9 6 36 23 5 32.2 0 113 60 - 9 10 52 - 9 2 20 - 9 14 42 - 8 58 31 .... 162 0 0 - 9 31 42 23 5 32.2 1 113 62 - 9 35 58 - 9 27 27 - 9 39 47 - 9 23 38 0.06 163 0 0 - 9 56 31 23 5 32.4 3 113 63 -10 0 46 - 9 52 16 -10 4 35 - 9 48 27 0.02 164 0 0 -10 21 2 23 5 32.6 4 112 64 -10 25 17 -10 16 48 -10 29 5 -10 12 59 0.00 165 0 0 -10 45 15 23 5 32.8 5 112 65 -10 49 29 -10 41 1 -10 53 17 -10 37 13 -0.01 166 0 0 -11 9 9 23 5 33.1 6 112 66 -11 13 23 -11 4 55 -11 17 11 -11 1 8 -0.02 167 0 0 -11 32 44 23 5 33.5 7 112 67 -11 36 57 -11 28 31 -11 40 45 -11 24 43 -0.02 168 0 0 -11 55 59 23 5 34.0 8 112 68 -12 0 12 -11 51 46 -12 3 59 -11 47 59 -0.02 169 0 0 -12 18 55 23 5 34.5 9 111 69 -12 23 7 -12 14 42 -12 26 54 -12 10 56 -0.03 170 0 0 -12 41 29 23 5 35.1 10 111 70 -12 45 42 -12 37 17 -12 49 28 -12 33 31 -0.03 171 0 0 -13 3 44 23 5 35.7 11 111 71 -13 7 55 -12 59 32 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28 - 7 5 56 - 6 49 36 -0.04 - 67 0 0 - 6 30 47 23 10 50.5 48 243 -12 - 6 35 5 - 6 26 28 - 6 38 57 - 6 22 36 -0.04 - 66 0 0 - 6 3 33 23 10 53.2 47 243 -13 - 6 7 52 - 5 59 14 - 6 11 45 - 5 55 22 -0.04 - 65 0 0 - 5 36 7 23 10 55.9 46 243 -14 - 5 40 26 - 5 31 47 - 5 44 19 - 5 27 55 -0.04 - 64 0 0 - 5 8 27 23 10 58.5 45 243 -15 - 5 12 47 - 5 4 8 - 5 16 40 - 5 0 15 -0.04 - 63 0 0 - 4 40 36 23 11 1.1 44 243 -16 - 4 44 56 - 4 36 16 - 4 48 49 - 4 32 23 -0.04 - 62 0 0 - 4 12 33 23 11 3.6 43 243 -17 - 4 16 53 - 4 8 13 - 4 20 47 - 4 4 20 -0.04 - 61 0 0 - 3 44 20 23 11 6.1 42 243 -18 - 3 48 40 - 3 40 0 - 3 52 34 - 3 36 6 -0.04 - 60 0 0 - 3 15 57 23 11 8.6 41 243 -19 - 3 20 18 - 3 11 36 - 3 24 11 - 3 7 43 -0.04 - 59 0 0 - 2 47 25 23 11 11.0 39 243 -20 - 2 51 46 - 2 43 4 - 2 55 40 - 2 39 10 -0.04 - 58 0 0 - 2 18 44 23 11 13.3 38 243 -21 - 2 23 5 - 2 14 23 - 2 27 0 - 2 10 29 -0.04 - 57 0 0 - 1 49 56 23 11 15.6 37 243 -23 - 1 54 18 - 1 45 35 - 1 58 12 - 1 41 41 -0.04 - 56 0 0 - 1 21 1 23 11 17.8 36 243 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243 -38 4 54 49 5 3 33 4 50 54 5 7 28 -0.04 - 42 0 0 5 28 18 23 11 42.5 20 243 -39 5 23 56 5 32 39 5 20 1 5 36 34 -0.04 - 41 0 0 5 57 19 23 11 43.8 19 243 -40 5 52 57 6 1 41 5 49 3 6 5 36 -0.04 - 40 0 0 6 26 15 23 11 45.0 18 244 -41 6 21 53 6 30 36 6 17 59 6 34 31 -0.04 - 39 0 0 6 55 4 23 11 46.1 17 244 -43 6 50 42 6 59 25 6 46 48 7 3 19 -0.04 - 38 0 0 7 23 45 23 11 47.1 16 244 -44 7 19 24 7 28 6 7 15 30 7 32 1 -0.04 - 37 0 0 7 52 18 23 11 48.1 15 244 -45 7 47 57 7 56 39 7 44 3 8 0 34 -0.03 - 36 0 0 8 20 43 23 11 49.0 14 244 -46 8 16 22 8 25 4 8 12 28 8 28 58 -0.03 - 35 0 0 8 48 58 23 11 49.9 13 244 -47 8 44 37 8 53 18 8 40 43 8 57 12 -0.03 - 34 0 0 9 17 2 23 11 50.6 12 244 -48 9 12 42 9 21 22 9 8 48 9 25 16 -0.03 - 33 0 0 9 44 56 23 11 51.3 11 245 -49 9 40 36 9 49 16 9 36 42 9 53 9 -0.03 - 32 0 0 10 12 38 23 11 52.0 9 245 -50 10 8 18 10 16 58 10 4 25 10 20 51 -0.03 - 31 0 0 10 40 7 23 11 52.5 8 245 -51 10 35 48 10 44 27 10 31 55 10 48 20 -0.03 - 30 0 0 11 7 24 23 11 53.0 7 245 -52 11 3 5 11 11 43 10 59 13 11 15 36 -0.03 - 29 0 0 11 34 28 23 11 53.4 6 245 -53 11 30 9 11 38 46 11 26 16 11 42 39 -0.02 - 28 0 0 12 1 17 23 11 53.8 5 245 -54 11 56 58 12 5 35 11 53 6 12 9 27 -0.02 - 27 0 0 12 27 51 23 11 54.1 4 246 -56 12 23 33 12 32 9 12 19 41 12 36 1 -0.01 - 26 0 0 12 54 10 23 11 54.3 3 246 -57 12 49 53 12 58 28 12 46 1 13 2 20 0.00 - 25 0 0 13 20 14 23 11 54.4 2 246 -58 13 15 56 13 24 31 13 12 5 13 28 22 0.02 - 24 0 0 13 46 1 23 11 54.5 1 246 -59 13 41 44 13 50 18 13 37 53 13 54 9 0.09 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 337-192076 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 43 43.5450 DE: -22 47 06.719 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 43 43.5449 DE: -22 47 06.719 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * B mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (10514) Harlow asteroid class: approx. diameter [km]: 14 approx. diameter ["]: 0.007 distance from Earth [AU]: 2.84360 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 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): 0.012", 0.003", 79.659° remarks: * orbital elements for (10514)Harlow : Mean anomaly = 326.5525657801 deg Arg. of pericenter = 5.8449813007 deg Long. of node = 348.1277970849 deg Inclination = 2.9487706550 deg Eccentricity = 0.0961653913 Semimajor axis = 2.7101782035 AU Perihelion dist = 2.4495528560 AU Mag: H = 13.32, G = 0.15 Epoch of elements : MJD 60629.96439026 TDT (2024 Nov 15.9644) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr25,0.43,2024,11,15,23.145368,-0.010715,0.047379,18.364750,4.050101,0.004911,0.000802,-0.000001,0.000000 -106.4057,-22.7272,-170.99,-18.79,False UCAC4 337-192076,19.72876255,-22.7851997,12.14,11.67,11.42,0.0,0,,19.75325545,-22.7272259,6.91,6.72,0,0,0 10514,Harlow,18.58,14.465,2.8436,0,0,4.105,12.53,,1.2,0 0,326.3395,2024,11,15,5.8450,348.1278,2.9488,0.09617,2.71018,2.44955,13.32,5.0,0.15 1.449,0.0120,0.0031,80,0.0032,Known errors,0.99,0,-1,-1 20241115_192076,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org