IOTA/IOTA-ES occultation update for (49483) 1999 BP13 / UCAC4 597-013451 event on 2024 Sep 04, 12:29 UT Visible from Summary ------- On 2024 Sep 04 UT, the 14.4359562572166 km diameter asteroid (49483) 1999 BP13 will occult a 9.9 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.08 mag to 17.96 mag (the magnitude of the asteroid) for at most 0.730 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: 95 * date and approx. time of event: 2024 Sep 04, 12:24 - 2024 Sep 04, 12:33 * geocentric midpoint of event [JD]: 2460558.02030671 * magnitude of target star: 9.88 * magnitude drop [mag]: 8.08 * estimated maximum duration [s]: 0.730 * Moon: 2 % sunlit, 104° distance * Sun: 88° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 17 * 1 sigma uncertainty interval [path widths]: +/- 0.44 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.003", 85°) * approx speed of asteroid's shadow [km/s]: 20.6911 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 597-013451 by 49483 1999 BP13 on 2024 Sep 4 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 168 0 0 8 33 27 12 24 36.1 1 61 -74 8 28 13 8 38 42 8 23 36 8 43 20 .... 169 0 0 9 8 4 12 24 36.3 2 61 -73 9 2 48 9 13 20 8 58 10 9 17 59 -0.44 170 0 0 9 43 11 12 24 36.6 3 61 -73 9 37 53 9 48 28 9 33 14 9 53 8 -0.46 171 0 0 10 18 47 12 24 37.0 4 61 -73 10 13 28 10 24 6 10 8 48 10 28 46 -0.47 172 0 0 10 54 51 12 24 37.6 5 61 -72 10 49 31 11 0 12 10 44 50 11 4 53 -0.47 173 0 0 11 31 24 12 24 38.3 7 61 -72 11 26 2 11 36 45 11 21 20 11 41 28 -0.47 174 0 0 12 8 23 12 24 39.2 8 62 -71 12 3 0 12 13 45 11 58 17 12 18 29 -0.48 175 0 0 12 45 47 12 24 40.2 9 62 -70 12 40 23 12 51 11 12 35 39 12 55 56 -0.48 176 0 0 13 23 36 12 24 41.4 10 62 -70 13 18 11 13 29 1 13 13 25 13 33 48 -0.48 177 0 0 14 1 49 12 24 42.6 11 62 -69 13 56 22 14 7 15 13 51 36 14 12 3 -0.48 178 0 0 14 40 24 12 24 44.1 12 63 -68 14 34 56 14 45 51 14 30 8 14 50 40 -0.48 179 0 0 15 19 20 12 24 45.6 14 63 -67 15 13 51 15 24 48 15 9 2 15 29 38 -0.48 -180 0 0 15 58 35 12 24 47.3 15 63 -66 15 53 6 16 4 5 15 48 16 16 8 56 -0.48 -179 0 0 16 38 10 12 24 49.2 16 64 -65 16 32 39 16 43 41 16 27 48 16 48 32 -0.48 -178 0 0 17 18 1 12 24 51.2 17 64 -64 17 12 29 17 23 33 17 7 37 17 28 26 -0.48 -177 0 0 17 58 8 12 24 53.3 18 64 -64 17 52 35 18 3 41 17 47 42 18 8 35 -0.48 -176 0 0 18 38 30 12 24 55.5 19 65 -63 18 32 55 18 44 4 18 28 2 18 48 58 -0.48 -175 0 0 19 19 4 12 24 57.9 20 65 -62 19 13 29 19 24 39 19 8 34 19 29 35 -0.48 -174 0 0 19 59 50 12 25 0.4 22 65 -61 19 54 14 20 5 26 19 49 18 20 10 22 -0.48 -173 0 0 20 40 45 12 25 3.0 23 66 -59 20 35 8 20 46 22 20 30 12 20 51 19 -0.48 -172 0 0 21 21 49 12 25 5.8 24 66 -58 21 16 11 21 27 27 21 11 14 21 32 24 -0.48 -171 0 0 22 2 59 12 25 8.7 25 67 -57 21 57 20 22 8 38 21 52 23 22 13 36 -0.48 -170 0 0 22 44 14 12 25 11.7 26 67 -56 22 38 35 22 49 54 22 33 36 22 54 53 -0.49 -169 0 0 23 25 32 12 25 14.8 27 68 -55 23 19 52 23 31 13 23 14 53 23 36 13 -0.49 -168 0 0 24 6 53 12 25 18.0 28 68 -54 24 1 12 24 12 34 23 56 12 24 17 34 -0.49 -167 0 0 24 48 13 12 25 21.3 30 69 -53 24 42 31 24 53 54 24 37 31 24 58 55 -0.49 -166 0 0 25 29 31 12 25 24.8 31 70 -52 25 23 50 25 35 14 25 18 49 25 40 15 -0.49 -165 0 0 26 10 47 12 25 28.3 32 70 -51 26 5 4 26 16 29 26 0 3 26 21 31 -0.49 -164 0 0 26 51 57 12 25 31.9 33 71 -50 26 46 14 26 57 40 26 41 13 27 2 42 -0.49 -163 0 0 27 33 0 12 25 35.6 34 72 -49 27 27 17 27 38 44 27 22 16 27 43 46 -0.48 -162 0 0 28 13 56 12 25 39.4 35 72 -48 28 8 12 28 19 39 28 3 11 28 24 42 -0.48 -161 0 0 28 54 41 12 25 43.3 36 73 -47 28 48 58 29 0 25 28 43 56 29 5 28 -0.48 -160 0 0 29 35 15 12 25 47.3 37 74 -45 29 29 31 29 40 59 29 24 29 29 46 2 -0.48 -159 0 0 30 15 36 12 25 51.3 38 75 -44 30 9 52 30 21 20 30 4 50 30 26 23 -0.48 -158 0 0 30 55 42 12 25 55.4 39 76 -43 30 49 59 31 1 27 30 44 56 31 6 30 -0.48 -157 0 0 31 35 33 12 25 59.6 40 76 -42 31 29 49 31 41 17 31 24 47 31 46 20 -0.48 -156 0 0 32 15 6 12 26 3.8 41 77 -41 32 9 22 32 20 50 32 4 20 32 25 53 -0.48 -155 0 0 32 54 20 12 26 8.1 42 78 -40 32 48 36 33 0 3 32 43 34 33 5 6 -0.48 -154 0 0 33 33 13 12 26 12.4 43 79 -39 33 27 30 33 38 57 33 22 28 33 43 59 -0.48 -153 0 0 34 11 45 12 26 16.7 44 80 -38 34 6 3 34 17 29 34 1 1 34 22 31 -0.48 -152 0 0 34 49 55 12 26 21.1 45 81 -37 34 44 12 34 55 38 34 39 11 35 0 40 -0.48 -151 0 0 35 27 40 12 26 25.6 46 82 -36 35 21 58 35 33 23 35 16 58 35 38 24 -0.48 -150 0 0 36 5 1 12 26 30.0 47 84 -35 35 59 19 36 10 43 35 54 19 36 15 44 -0.48 -149 0 0 36 41 55 12 26 34.5 48 85 -34 36 36 14 36 47 37 36 31 15 36 52 37 -0.48 -148 0 0 37 18 22 12 26 39.0 48 86 -33 37 12 42 37 24 3 37 7 43 37 29 3 -0.48 -147 0 0 37 54 22 12 26 43.5 49 87 -32 37 48 42 38 0 2 37 43 43 38 5 1 -0.48 -146 0 0 38 29 52 12 26 48.1 50 89 -31 38 24 13 38 35 31 38 19 15 38 40 30 -0.48 -145 0 0 39 4 53 12 26 52.6 51 90 -30 38 59 14 39 10 31 38 54 17 39 15 29 -0.48 -144 0 0 39 39 23 12 26 57.1 52 91 -29 39 33 46 39 45 0 39 28 49 39 49 58 -0.48 -143 0 0 40 13 22 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57 14 35 -0.48 - 92 0 0 57 14 3 12 30 15.8 61 194 9 57 9 25 57 18 42 57 5 21 57 22 47 -0.48 - 91 0 0 57 21 54 12 30 18.8 61 196 9 57 17 16 57 26 31 57 13 12 57 30 35 -0.48 - 90 0 0 57 29 21 12 30 21.7 61 198 10 57 24 44 57 33 58 57 20 41 57 38 2 -0.48 - 89 0 0 57 36 26 12 30 24.6 61 199 11 57 31 50 57 41 2 57 27 47 57 45 5 -0.48 - 88 0 0 57 43 9 12 30 27.5 60 201 11 57 38 33 57 47 44 57 34 31 57 51 47 -0.48 - 87 0 0 57 49 29 12 30 30.3 60 203 12 57 44 54 57 54 4 57 40 52 57 58 6 -0.48 - 86 0 0 57 55 27 12 30 33.2 60 204 12 57 50 53 58 0 2 57 46 52 58 4 4 -0.48 - 85 0 0 58 1 4 12 30 36.0 59 206 13 57 56 30 58 5 38 57 52 30 58 9 39 -0.48 - 84 0 0 58 6 19 12 30 38.8 59 208 13 58 1 46 58 10 53 57 57 46 58 14 54 -0.48 - 83 0 0 58 11 13 12 30 41.5 59 209 14 58 6 40 58 15 46 58 2 40 58 19 47 -0.48 - 82 0 0 58 15 46 12 30 44.3 58 211 14 58 11 13 58 20 18 58 7 14 58 24 18 -0.48 - 81 0 0 58 19 57 12 30 47.0 58 212 15 58 15 25 58 24 29 58 11 26 58 28 29 -0.48 - 80 0 0 58 23 47 12 30 49.7 58 214 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46 50 8 17 50 18 37 50 3 45 50 23 10 -0.49 - 16 0 0 49 51 51 12 33 19.0 25 286 47 49 46 40 49 57 3 49 42 7 50 1 37 -0.50 - 15 0 0 49 29 44 12 33 20.9 25 287 47 49 24 31 49 34 56 49 19 56 49 39 32 -0.50 - 14 0 0 49 7 4 12 33 22.8 24 288 48 49 1 50 49 12 18 48 57 14 49 16 54 -0.50 - 13 0 0 48 43 52 12 33 24.6 23 289 48 48 38 37 48 49 7 48 34 0 48 53 45 -0.50 - 12 0 0 48 20 7 12 33 26.4 22 289 49 48 14 50 48 25 23 48 10 12 48 30 2 -0.50 - 11 0 0 47 55 49 12 33 28.2 22 290 49 47 50 31 48 1 7 47 45 52 48 5 47 -0.50 - 10 0 0 47 30 59 12 33 29.9 21 291 49 47 25 40 47 36 18 47 20 59 47 40 59 -0.50 - 9 0 0 47 5 35 12 33 31.6 20 292 50 47 0 15 47 10 55 46 55 33 47 15 37 -0.50 - 8 0 0 46 39 38 12 33 33.2 19 293 50 46 34 17 46 45 0 46 29 34 46 49 43 -0.50 - 7 0 0 46 13 8 12 33 34.8 18 293 51 46 7 45 46 18 31 46 3 2 46 23 15 -0.50 - 6 0 0 45 46 5 12 33 36.3 18 294 51 45 40 41 45 51 29 45 35 56 45 56 14 -0.51 - 5 0 0 45 18 28 12 33 37.8 17 295 52 45 13 3 45 23 54 45 8 18 45 28 40 -0.51 - 4 0 0 44 50 19 12 33 39.3 16 296 52 44 44 53 44 55 46 44 40 6 45 0 33 -0.51 - 3 0 0 44 21 36 12 33 40.6 15 296 52 44 16 9 44 27 4 44 11 21 44 31 53 -0.51 - 2 0 0 43 52 21 12 33 42.0 14 297 53 43 46 52 43 57 50 43 42 3 44 2 39 -0.51 - 1 0 0 43 22 33 12 33 43.2 13 298 53 43 17 3 43 28 2 43 12 13 43 32 53 -0.52 0 0 0 42 52 12 12 33 44.4 12 299 53 42 46 41 42 57 43 42 41 51 43 2 34 -0.52 1 0 0 42 21 19 12 33 45.5 11 299 54 42 15 47 42 26 51 42 10 56 42 31 43 -0.52 2 0 0 41 49 54 12 33 46.6 11 300 54 41 44 22 41 55 27 41 39 29 42 0 20 -0.53 3 0 0 41 17 58 12 33 47.5 10 301 54 41 12 24 41 23 32 41 7 31 41 28 26 -0.53 4 0 0 40 45 31 12 33 48.4 9 301 54 40 39 56 40 51 6 40 35 2 40 56 1 -0.54 5 0 0 40 12 33 12 33 49.3 8 302 55 40 6 58 40 18 9 40 2 3 40 23 4 -0.54 6 0 0 39 39 5 12 33 50.0 7 303 55 39 33 29 39 44 42 39 28 34 39 49 38 -0.55 7 0 0 39 5 8 12 33 50.6 6 303 55 38 59 31 39 10 46 38 54 35 39 15 42 -0.56 8 0 0 38 30 42 12 33 51.2 5 304 55 38 25 5 38 36 20 38 20 8 38 41 18 -0.58 9 0 0 37 55 49 12 33 51.7 4 304 55 37 50 10 38 1 27 37 45 13 38 6 25 -0.60 10 0 0 37 20 28 12 33 52.0 3 305 55 37 14 49 37 26 7 37 9 51 37 31 5 -0.64 11 0 0 36 44 40 12 33 52.3 2 306 55 36 39 1 36 50 20 36 34 2 36 55 19 -0.72 12 0 0 36 8 27 12 33 52.5 1 306 55 36 2 47 36 14 7 35 57 49 36 19 7 -0.96 13 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 35 42 31 .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.5 Data for the target star ------------------------ * name: UCAC4 597-013451 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 04 46 45.5010 DE: +29 13 06.726 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 04 46 45.5010 DE: +29 13 06.726 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 9.9 * B mag [mag]: 11.3 * Diameter [mas]: 0.40 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (49483) 1999 BP13 asteroid class: approx. diameter [km]: 14 approx. diameter ["]: 0.009 distance from Earth [AU]: 2.17520 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#42 date of fit: 2023 Feb 09 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): 0.016", 0.003", 84.606° remarks: * orbital elements for (49483)1999 BP13 : Mean anomaly = 312.5310922958 deg Arg. of pericenter = 141.4125496731 deg Long. of node = 338.5150166275 deg Inclination = 6.6298036276 deg Eccentricity = 0.2328635425 Semimajor axis = 2.6920051315 AU Perihelion dist = 2.0651352803 AU Mag: H = 13.24, G = 0.15 Epoch of elements : MJD 60557.52030758 TDT (2024 Sep 04.5203) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#422023Feb09,0.73,2024,9,4,12.487361,-0.119196,0.412246,11.217950,3.247728,-0.005454,-0.000658,0.000000,0.000000 -99.3525,29.2631,-7.59,6.88,False UCAC4 597-013451,4.77930579,29.2185351,11.31,9.88,9.11,0.4,0,,4.80518963,29.2630531,8.08,8.40,0,0,0 49483,1999 BP13,17.96,15.067,2.1752,0,0,3.466,13.13,,1.0,0 0,312.4150,2024,9,4,141.4125,338.5150,6.6298,0.23286,2.69201,2.06514,13.24,5.0,0.15 1.440,0.0160,0.0030,85,0.0042,Known errors,0.93,0,-1,-1 20240904_013451,60140.54 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 12:58 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org