IOTA/IOTA-ES occultation update for (151) Abundantia / UCAC4 317-148631 event on 2024 Mar 06, 16:54 UT Visible from Summary ------- On 2024 Mar 06 UT, the 40.7678390898796 km diameter asteroid (151) Abundantia 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 2.81 mag to 14.43 mag (the magnitude of the asteroid) for at most 1.780 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 Mar 06, 16:50 - 2024 Mar 06, 16:58 * geocentric midpoint of event [JD]: 2460376.20469329 * magnitude of target star: 11.71 * magnitude drop [mag]: 2.81 * estimated maximum duration [s]: 1.780 * Moon: 19 % sunlit, 21° distance * Sun: 74° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 47 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.009, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.003", 96°) * approx speed of asteroid's shadow [km/s]: 26.1434 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 317-148631 by 151 Abundantia on 2024 Mar 6 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 130 0 0 .. .. .... .. .. .. .. .. .. 8 1 28 .. .. .. 7 58 9 .. .. .. 8 4 59 ... .. .. .... 131 0 0 7 45 7 16 50 42.1 1 117 -69 7 30 54 7 59 20 7 27 35 8 2 39 7 34 26 7 55 49 .... 132 0 0 7 14 27 16 50 42.2 2 117 -68 7 0 13 7 28 40 6 56 54 7 32 0 7 3 45 7 25 9 0.03 133 0 0 6 43 40 16 50 42.4 3 117 -67 6 29 26 6 57 54 6 26 7 7 1 13 6 32 58 6 54 22 0.00 134 0 0 6 12 47 16 50 42.7 4 118 -66 5 58 32 6 27 1 5 55 13 6 30 21 6 2 4 6 23 29 -0.02 135 0 0 5 41 49 16 50 43.2 6 118 -65 5 27 34 5 56 3 5 24 15 5 59 23 5 31 6 5 52 31 -0.03 136 0 0 5 10 46 16 50 43.7 7 118 -64 4 56 32 5 25 1 4 53 12 5 28 21 5 0 4 5 21 29 -0.03 137 0 0 4 39 41 16 50 44.3 8 118 -63 4 25 26 4 53 56 4 22 6 4 57 16 4 28 58 4 50 24 -0.04 138 0 0 4 8 33 16 50 45.0 9 118 -62 3 54 18 4 22 48 3 50 58 4 26 8 3 57 50 4 19 16 -0.04 139 0 0 3 37 23 16 50 45.8 10 118 -61 3 23 8 3 51 38 3 19 49 3 54 58 3 26 40 3 48 6 -0.04 140 0 0 3 6 13 16 50 46.7 11 118 -60 2 51 58 3 20 28 2 48 38 3 23 48 2 55 30 3 16 56 -0.04 141 0 0 2 35 3 16 50 47.6 12 118 -59 2 20 48 2 49 18 2 17 29 2 52 37 2 24 20 2 45 46 -0.04 142 0 0 2 3 54 16 50 48.7 13 118 -58 1 49 39 2 18 9 1 46 20 2 21 28 1 53 11 2 14 36 -0.05 143 0 0 1 32 47 16 50 49.9 15 118 -57 1 18 32 1 47 1 1 15 13 1 50 21 1 22 4 1 43 29 -0.05 144 0 0 1 1 42 16 50 51.1 16 118 -56 0 47 28 1 15 57 0 44 9 1 19 16 0 51 0 1 12 25 -0.05 145 0 0 0 30 42 16 50 52.5 17 118 -55 0 16 28 0 44 56 0 13 9 0 48 15 0 20 0 0 41 24 -0.05 146 0 0 - 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6 8 26 - 5 40 23 - 6 11 43 - 5 37 7 - 6 4 58 - 5 43 52 -0.05 - 64 0 0 - 5 25 38 16 58 45.5 9 244 82 - 5 39 41 - 5 11 36 - 5 42 58 - 5 8 19 - 5 36 12 - 5 15 5 -0.05 - 63 0 0 - 4 56 38 16 58 46.2 8 244 81 - 5 10 42 - 4 42 34 - 5 13 59 - 4 39 17 - 5 7 12 - 4 46 3 -0.05 - 62 0 0 - 4 27 24 16 58 46.9 7 244 80 - 4 41 29 - 4 13 19 - 4 44 46 - 4 10 2 - 4 37 59 - 4 16 49 -0.04 - 61 0 0 - 3 57 58 16 58 47.4 6 244 79 - 4 12 4 - 3 43 52 - 4 15 21 - 3 40 35 - 4 8 34 - 3 47 22 -0.04 - 60 0 0 - 3 28 20 16 58 47.9 5 243 78 - 3 42 27 - 3 14 13 - 3 45 44 - 3 10 55 - 3 38 57 - 3 17 43 -0.04 - 59 0 0 - 2 58 31 16 58 48.3 4 243 77 - 3 12 39 - 2 44 23 - 3 15 57 - 2 41 5 - 3 9 9 - 2 47 54 -0.03 - 58 0 0 - 2 28 32 16 58 48.5 3 243 76 - 2 42 41 - 2 14 23 - 2 45 58 - 2 11 5 - 2 39 10 - 2 17 54 -0.02 - 57 0 0 - 1 58 23 16 58 48.7 2 243 75 - 2 12 33 - 1 44 14 - 2 15 51 - 1 40 56 - 2 9 2 - 1 47 45 0.01 - 56 0 0 - 1 28 6 16 58 48.8 0 243 74 - 1 42 16 - 1 13 56 - 1 45 35 - 1 10 38 - 1 38 45 - 1 17 27 0.18 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: UCAC4 317-148631 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 12 15.5234 DE: -26 43 33.595 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 12 15.5235 DE: -26 43 33.595 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.700,0.600) * V mag [mag]: 11.7 * B mag [mag]: 14.9 * Diameter [mas]: 3.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (151) Abundantia asteroid class: approx. diameter [km]: 41 approx. diameter ["]: 0.021 distance from Earth [AU]: 2.67080 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#62 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): 0.009", 0.003", 95.7° remarks: * orbital elements for (151)Abundantia : Mean anomaly = 75.7742415297 deg Arg. of pericenter = 132.6407188566 deg Long. of node = 38.7365081430 deg Inclination = 6.4315560247 deg Eccentricity = 0.0356976491 Semimajor axis = 2.5921306826 AU Perihelion dist = 2.4995977110 AU Mag: H = 9.20, G = 0.15 Epoch of elements : MJD 60375.70469313 TDT (2024 Mar 06.7047) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#622023Apr24,1.78,2024,3,6,16.912639,0.006691,0.067724,14.693329,-1.359461,-0.005541,-0.000225,-0.000001,0.000000 -145.1638,-26.7206,-70.92,-5.28,False UCAC4 317-148631,18.20431203,-26.7259987,14.90,11.71,9.99,3.0,0,,18.22926574,-26.7206430,2.80,4.02,0,0,0 151,Abundantia,14.43,46.579,2.6708,0,0,3.612,-4.48,,2.0,0 0,75.6078,2024,3,6,132.6407,38.7365,6.4316,0.03570,2.59213,2.49960,9.19,5.0,0.15 1.117,0.0094,0.0028,96,0.0028,Known errors,0.73,0,-1,-1 20240306_148631,60139.22 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:11 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org