IOTA/IOTA-ES occultation update for (597) Bandusia / UCAC4 347-068532 event on 2024 Jul 17, 02:03 UT Visible from Summary ------- On 2024 Jul 17 UT, the 37.942 km diameter asteroid (597) Bandusia will occult a 11.7 mag star in the constellation Virgo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.58 mag to 14.18 mag (the magnitude of the asteroid) for at most 4.780 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 Jul 17, 01:50 - 2024 Jul 17, 02:17 * geocentric midpoint of event [JD]: 2460508.58590409 * magnitude of target star: 11.71 * magnitude drop [mag]: 2.58 * estimated maximum duration [s]: 4.780 * Moon: 78 % sunlit, 20° distance * Sun: 105° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 38 * 1 sigma uncertainty interval [path widths]: +/- 0.22 * 1 sigma uncertainty interval [seconds]: +/- 2.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.005", 125°) * approx speed of asteroid's shadow [km/s]: 7.9350 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 347-068532 by 597 Bandusia on 2024 Jul 17 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 171 0 0 21 22 14 1 50 20.5 0 113 74 21 11 2 21 33 25 21 6 1 21 38 26 .... 172 0 0 20 58 36 1 50 20.6 1 113 73 20 47 23 21 9 50 20 42 20 21 14 52 0.16 173 0 0 20 34 23 1 50 21.1 2 113 72 20 23 7 20 45 39 20 18 3 20 50 42 0.14 174 0 0 20 9 33 1 50 21.7 3 114 71 19 58 15 20 20 51 19 53 10 20 25 56 0.13 175 0 0 19 44 7 1 50 22.7 4 114 70 19 32 46 19 55 28 19 27 40 20 0 34 0.12 176 0 0 19 18 5 1 50 23.9 5 114 69 19 6 42 19 29 28 19 1 35 19 34 35 0.12 177 0 0 18 51 27 1 50 25.4 6 115 68 18 40 1 19 2 53 18 34 53 19 8 1 0.12 178 0 0 18 24 12 1 50 27.2 7 115 67 18 12 44 18 35 40 18 7 34 18 40 49 0.12 179 0 0 17 56 21 1 50 29.3 9 115 66 17 44 50 18 7 52 17 39 39 18 13 2 0.12 -180 0 0 17 27 54 1 50 31.7 10 116 65 17 16 20 17 39 27 17 11 8 17 44 38 0.11 -179 0 0 16 58 50 1 50 34.3 11 116 64 16 47 14 17 10 26 16 42 1 17 15 39 0.11 -178 0 0 16 29 10 1 50 37.3 12 116 63 16 17 31 16 40 49 16 12 17 16 46 3 0.11 -177 0 0 15 58 55 1 50 40.6 13 116 62 15 47 13 16 10 36 15 41 58 16 15 51 0.11 -176 0 0 15 28 3 1 50 44.2 14 117 61 15 16 19 15 39 47 15 11 2 15 45 3 0.11 -175 0 0 14 56 36 1 50 48.1 15 117 60 14 44 49 15 8 22 14 39 31 15 13 40 0.11 -174 0 0 14 24 33 1 50 52.3 16 117 59 14 12 44 14 36 22 14 7 25 14 41 41 0.11 -173 0 0 13 51 55 1 50 56.9 17 117 58 13 40 3 14 3 47 13 34 43 14 9 7 0.11 -172 0 0 13 18 43 1 51 1.8 18 118 56 13 6 48 13 30 37 13 1 27 13 35 58 0.11 -171 0 0 12 44 56 1 51 7.0 20 118 55 12 32 59 12 56 53 12 27 36 13 2 15 0.11 -170 0 0 12 10 35 1 51 12.6 21 118 54 11 58 35 12 22 35 11 53 12 12 27 58 0.11 -169 0 0 11 35 41 1 51 18.5 22 118 53 11 23 39 11 47 44 11 18 14 11 53 8 0.11 -168 0 0 11 0 14 1 51 24.8 23 118 52 10 48 9 11 12 19 10 42 43 11 17 45 0.11 -167 0 0 10 24 15 1 51 31.4 24 119 51 10 12 7 10 36 22 10 6 40 10 41 49 0.11 -166 0 0 9 47 44 1 51 38.4 25 119 50 9 35 33 9 59 54 9 30 5 10 5 21 0.11 -165 0 0 9 10 42 1 51 45.7 27 119 48 8 58 29 9 22 54 8 53 0 9 28 23 0.11 -164 0 0 8 33 10 1 51 53.4 28 119 47 8 20 54 8 45 24 8 15 24 8 50 54 0.11 -163 0 0 7 55 8 1 52 1.5 29 119 46 7 42 51 8 7 25 7 37 19 8 12 56 0.11 -162 0 0 7 16 38 1 52 9.8 30 119 45 7 4 19 7 28 58 6 58 46 7 34 30 0.11 -161 0 0 6 37 41 1 52 18.6 31 119 44 6 25 19 6 50 3 6 19 45 6 55 36 0.11 -160 0 0 5 58 17 1 52 27.7 33 119 42 5 45 53 6 10 41 5 40 19 6 16 15 0.11 -159 0 0 5 18 28 1 52 37.2 34 119 41 5 6 2 5 30 54 5 0 27 5 36 30 0.11 -158 0 0 4 38 15 1 52 47.0 35 120 40 4 25 47 4 50 43 4 20 11 4 56 19 0.11 -157 0 0 3 57 39 1 52 57.2 36 120 39 3 45 9 4 10 9 3 39 32 4 15 46 0.11 -156 0 0 3 16 42 1 53 7.7 38 120 38 3 4 10 3 29 14 2 58 32 3 34 51 0.11 -155 0 0 2 35 24 1 53 18.6 39 120 36 2 22 50 2 47 57 2 17 11 2 53 36 0.11 -154 0 0 1 53 47 1 53 29.8 40 120 35 1 41 12 2 6 22 1 35 32 2 12 2 0.11 -153 0 0 1 11 53 1 53 41.3 41 119 34 0 59 16 1 24 30 0 53 36 1 30 10 0.11 -152 0 0 0 29 43 1 53 53.2 43 119 33 0 17 5 0 42 21 0 11 24 0 48 2 0.11 -151 0 0 - 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36 0 0 -36 55 35 2 16 5.7 21 259 -74 -37 6 8 -36 45 1 -37 10 53 -36 40 17 0.10 - 35 0 0 -36 44 32 2 16 10.0 21 259 -74 -36 55 7 -36 33 57 -36 59 52 -36 29 12 0.10 - 34 0 0 -36 32 59 2 16 14.0 20 258 -74 -36 43 35 -36 22 23 -36 48 21 -36 17 37 0.10 - 33 0 0 -36 20 55 2 16 18.0 19 258 -75 -36 31 33 -36 10 17 -36 36 20 -36 5 31 0.10 - 32 0 0 -36 8 21 2 16 21.8 18 257 -75 -36 19 0 -35 57 41 -36 23 48 -35 52 54 0.10 - 31 0 0 -35 55 16 2 16 25.4 17 256 -75 -36 5 57 -35 44 35 -36 10 45 -35 39 47 0.10 - 30 0 0 -35 41 40 2 16 28.9 16 256 -75 -35 52 22 -35 30 57 -35 57 11 -35 26 8 0.10 - 29 0 0 -35 27 33 2 16 32.2 15 255 -75 -35 38 17 -35 16 48 -35 43 7 -35 11 59 0.10 - 28 0 0 -35 12 54 2 16 35.4 15 255 -75 -35 23 41 -35 2 8 -35 28 31 -34 57 18 0.10 - 27 0 0 -34 57 45 2 16 38.4 14 254 -75 -35 8 33 -34 46 57 -35 13 25 -34 42 6 0.10 - 26 0 0 -34 42 4 2 16 41.2 13 253 -75 -34 52 54 -34 31 15 -34 57 47 -34 26 23 0.11 - 25 0 0 -34 25 52 2 16 43.9 12 253 -75 -34 36 44 -34 15 1 -34 41 37 -34 10 8 0.11 - 24 0 0 -34 9 9 2 16 46.4 11 252 -75 -34 20 2 -33 58 15 -34 24 56 -33 53 21 0.11 - 23 0 0 -33 51 53 2 16 48.7 10 252 -75 -34 2 49 -33 40 58 -34 7 44 -33 36 3 0.11 - 22 0 0 -33 34 6 2 16 50.8 9 251 -74 -33 45 4 -33 23 9 -33 50 0 -33 18 13 0.11 - 21 0 0 -33 15 47 2 16 52.8 8 251 -74 -33 26 47 -33 4 48 -33 31 44 -32 59 52 0.12 - 20 0 0 -32 56 57 2 16 54.6 8 250 -74 -33 7 58 -32 45 55 -33 12 56 -32 40 58 0.12 - 19 0 0 -32 37 34 2 16 56.2 7 250 -73 -32 48 38 -32 26 30 -32 53 36 -32 21 32 0.12 - 18 0 0 -32 17 39 2 16 57.6 6 249 -73 -32 28 45 -32 6 33 -32 33 44 -32 1 34 0.13 - 17 0 0 -31 57 12 2 16 58.8 5 248 -72 -32 8 20 -31 46 4 -32 13 21 -31 41 4 0.13 - 16 0 0 -31 36 13 2 16 59.8 4 248 -72 -31 47 24 -31 25 3 -31 52 25 -31 20 2 0.14 - 15 0 0 -31 14 42 2 17 0.6 3 247 -71 -31 25 55 -31 3 30 -31 30 57 -30 58 28 0.16 - 14 0 0 -30 52 39 2 17 1.2 2 247 -71 -31 3 54 -30 41 25 -31 8 57 -30 36 22 0.19 - 13 0 0 -30 30 4 2 17 1.5 1 246 -70 -30 41 21 -30 18 47 -30 46 25 -30 13 43 0.26 - 12 0 0 -30 6 57 2 17 1.7 0 246 -69 -30 18 16 -29 55 38 -30 23 21 -29 50 33 1.30 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: UCAC4 347-068532 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 14 19 24.1184 DE: -20 42 34.542 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 14 19 24.1181 DE: -20 42 34.541 * 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: (597) Bandusia asteroid class: approx. diameter [km]: 38 approx. diameter ["]: 0.023 distance from Earth [AU]: 2.25730 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#60 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): 0.012", 0.005", 125.04° remarks: * orbital elements for (597)Bandusia : Mean anomaly = 274.1451196718 deg Arg. of pericenter = 307.2320029854 deg Long. of node = 36.4555700415 deg Inclination = 12.7985990990 deg Eccentricity = 0.1437181439 Semimajor axis = 2.6727164345 AU Perihelion dist = 2.2885985894 AU Mag: H = 9.22, G = 0.15 Epoch of elements : MJD 60508.08590409 TDT (2024 Jul 17.0859) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#602023Apr24,4.78,2024,7,17,2.061698,-0.036822,-0.072348,3.970588,-2.072131,0.005086,-0.001595,0.000000,0.000000 -111.1259,-20.8237,150.63,21.13,False UCAC4 347-068532,14.32336623,-20.7095952,12.07,11.71,11.52,0.0,0,,14.34629777,-20.8236608,2.57,2.34,0,0,0 597,Bandusia,14.18,37.942,2.2573,0,0,1.104,-8.08,,2.4,0 0,274.1257,2024,7,17,307.2320,36.4556,12.7986,0.14372,2.67272,2.28860,9.21,5.0,0.15 1.225,0.0123,0.0050,125,0.0052,Known errors,1.02,0,-1,-1 20240717_068532,60140.20 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 04:55 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org