IOTA/IOTA-ES occultation update for (916) America / TYC 6905-01158-1 event on 2024 Sep 03, 08:04 UT Visible from Summary ------- On 2024 Sep 03 UT, the 32.8664473767744 km diameter asteroid (916) America will occult a 9.2 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.90 mag to 14.08 mag (the magnitude of the asteroid) for at most 6.150 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: 67 * date and approx. time of event: 2024 Sep 03, 07:45 - 2024 Sep 03, 08:23 * geocentric midpoint of event [JD]: 2460556.83668937 * magnitude of target star: 9.19 * magnitude drop [mag]: 4.90 * estimated maximum duration [s]: 6.150 * Moon: 0 % sunlit, 135° distance * Sun: 138° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 35 * 1 sigma uncertainty interval [path widths]: +/- 0.89 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.035, +/- 0.016) * 1 sigma uncertainty ellipse (major, minor, PA): (0.038", 0.005", 66°) * approx speed of asteroid's shadow [km/s]: 5.3798 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6905-01158-1 by 916 America on 2024 Sep 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 162 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 62 27 18 .... 163 0 0 62 32 19 8 23 19.3 0 152 -2 62 52 45 62 11 58 .. .. .. 61 35 51 .... 164 0 0 61 39 13 8 23 19.0 1 153 -3 62 0 0 61 18 32 62 37 23 60 41 51 -0.15 165 0 0 60 43 28 8 23 18.2 2 154 -4 61 4 34 60 22 28 61 42 34 59 45 13 -0.26 166 0 0 59 44 58 8 23 17.0 4 155 -4 60 6 23 59 23 40 60 44 58 58 45 53 -0.30 167 0 0 58 43 40 8 23 15.3 5 155 -5 59 5 23 58 22 4 59 44 30 57 43 46 -0.33 168 0 0 57 39 28 8 23 12.9 6 156 -6 58 1 28 57 17 36 58 41 6 56 38 49 -0.34 169 0 0 56 32 21 8 23 9.9 7 157 -7 56 54 37 56 10 14 57 34 43 55 31 1 -0.36 170 0 0 55 22 17 8 23 6.1 8 158 -8 55 44 47 54 59 56 56 25 19 54 20 20 -0.36 171 0 0 54 9 16 8 23 1.5 10 159 -9 54 31 58 53 46 42 55 12 53 53 6 46 -0.37 172 0 0 52 53 18 8 22 56.0 11 160 -10 53 16 10 52 30 35 53 57 25 51 50 20 -0.38 173 0 0 51 34 26 8 22 49.5 13 160 -11 51 57 27 51 11 35 52 38 58 50 31 6 -0.38 174 0 0 50 12 45 8 22 42.0 14 161 -13 50 35 52 49 49 47 51 17 35 49 9 9 -0.39 175 0 0 48 48 20 8 22 33.4 16 162 -14 49 11 31 48 25 19 49 53 22 47 44 33 -0.39 176 0 0 47 21 19 8 22 23.6 17 163 -15 47 44 32 46 58 16 48 26 26 46 17 28 -0.39 177 0 0 45 51 50 8 22 12.6 19 163 -16 46 15 3 45 28 48 46 56 56 44 48 1 -0.40 178 0 0 44 20 5 8 22 0.4 20 164 -18 44 43 14 43 57 5 45 25 2 43 16 23 -0.40 179 0 0 42 46 13 8 21 46.8 22 165 -19 43 9 18 42 23 18 43 50 57 41 42 45 -0.40 -180 0 0 41 10 29 8 21 31.9 24 166 -21 41 33 27 40 47 41 42 14 53 40 7 20 -0.40 -179 0 0 39 33 6 8 21 15.7 26 166 -22 39 55 55 39 10 27 40 37 4 38 30 21 -0.40 -178 0 0 37 54 17 8 20 58.1 27 167 -23 38 16 55 37 31 49 38 57 45 36 52 1 -0.41 -177 0 0 36 14 17 8 20 39.2 29 168 -25 36 36 43 35 52 1 37 17 10 35 12 35 -0.41 -176 0 0 34 33 21 8 20 19.0 31 169 -26 34 55 33 34 11 18 35 35 35 33 32 16 -0.41 -175 0 0 32 51 43 8 19 57.5 33 169 -28 33 13 39 32 29 54 33 53 13 31 51 18 -0.41 -174 0 0 31 9 36 8 19 34.8 35 170 -30 31 31 16 30 48 3 32 10 21 30 9 54 -0.41 -173 0 0 29 27 14 8 19 11.0 36 171 -31 29 48 38 29 5 58 30 27 12 28 28 18 -0.41 -172 0 0 27 44 51 8 18 46.1 38 172 -33 28 5 57 27 23 52 28 43 59 26 46 42 -0.41 -171 0 0 26 2 38 8 18 20.1 40 173 -34 26 23 27 25 41 57 27 0 55 25 5 17 -0.41 -170 0 0 24 20 47 8 17 53.2 42 174 -36 24 41 17 24 0 24 25 18 12 23 24 16 -0.41 -169 0 0 22 39 29 8 17 25.4 43 174 -37 22 59 40 22 19 24 23 36 1 21 43 47 -0.41 -168 0 0 20 58 52 8 16 56.8 45 175 -39 21 18 45 20 39 5 21 54 32 20 4 0 -0.41 -167 0 0 19 19 6 8 16 27.4 47 176 -40 19 38 41 18 59 37 20 13 54 18 25 4 -0.41 -166 0 0 17 40 19 8 15 57.5 49 178 -42 17 59 35 17 21 8 18 34 15 16 47 6 -0.40 -165 0 0 16 2 38 8 15 27.0 50 179 -43 16 21 36 15 43 45 16 55 42 15 10 14 -0.40 -164 0 0 14 26 9 8 14 56.1 52 180 -45 14 44 49 14 7 34 15 18 22 13 34 34 -0.40 -163 0 0 12 50 58 8 14 24.7 53 181 -46 13 9 20 12 32 40 13 42 21 12 0 11 -0.40 -162 0 0 11 17 9 8 13 53.1 55 183 -48 11 35 14 10 59 9 12 7 44 10 27 9 -0.40 -161 0 0 9 44 48 8 13 21.2 56 184 -49 10 2 36 9 27 4 10 34 35 8 55 34 -0.40 -160 0 0 8 13 58 8 12 49.1 58 186 -50 8 31 29 7 56 30 9 2 58 7 25 29 -0.40 -159 0 0 6 44 42 8 12 17.0 59 188 -52 7 1 57 6 27 30 7 32 56 5 56 56 -0.39 -158 0 0 5 17 2 8 11 44.8 61 190 -53 5 34 1 5 0 6 6 4 32 4 29 59 -0.39 -157 0 0 3 51 1 8 11 12.7 62 192 -54 4 7 45 3 34 20 4 37 47 3 4 40 -0.39 -156 0 0 2 26 40 8 10 40.6 63 194 -56 2 43 9 2 10 14 3 12 45 1 41 0 -0.39 -155 0 0 1 4 1 8 10 8.6 64 196 -57 1 20 16 0 47 50 1 49 25 0 19 1 -0.39 -154 0 0 - 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87 0 0 -39 0 34 7 49 3.0 29 262 -48 -38 51 2 -39 10 6 -38 33 59 -39 27 5 -0.37 - 86 0 0 -39 3 17 7 48 55.0 29 261 -48 -38 53 45 -39 12 48 -38 36 43 -39 29 47 -0.37 - 85 0 0 -39 5 18 7 48 47.1 28 261 -47 -38 55 47 -39 14 49 -38 38 44 -39 31 48 -0.37 - 84 0 0 -39 6 37 7 48 39.5 27 260 -46 -38 57 6 -39 16 8 -38 40 4 -39 33 6 -0.37 - 83 0 0 -39 7 15 7 48 32.0 26 260 -46 -38 57 43 -39 16 45 -38 40 41 -39 33 44 -0.37 - 82 0 0 -39 7 10 7 48 24.7 26 259 -45 -38 57 38 -39 16 41 -38 40 35 -39 33 40 -0.37 - 81 0 0 -39 6 23 7 48 17.6 25 259 -45 -38 56 51 -39 15 54 -38 39 48 -39 32 54 -0.37 - 80 0 0 -39 4 54 7 48 10.7 24 258 -44 -38 55 21 -39 14 26 -38 38 17 -39 31 26 -0.37 - 79 0 0 -39 2 42 7 48 3.9 23 258 -43 -38 53 9 -39 12 15 -38 36 4 -39 29 16 -0.38 - 78 0 0 -38 59 48 7 47 57.4 23 257 -43 -38 50 14 -39 9 21 -38 33 8 -39 26 24 -0.38 - 77 0 0 -38 56 11 7 47 51.0 22 257 -42 -38 46 36 -39 5 45 -38 29 28 -39 22 49 -0.38 - 76 0 0 -38 51 50 7 47 44.8 21 256 -41 -38 42 15 -39 1 25 -38 25 5 -39 18 31 -0.38 - 75 0 0 -38 46 46 7 47 38.9 20 255 -41 -38 37 10 -38 56 23 -38 19 58 -39 13 30 -0.38 - 74 0 0 -38 40 59 7 47 33.0 20 255 -40 -38 31 20 -38 50 36 -38 14 6 -39 7 46 -0.38 - 73 0 0 -38 34 26 7 47 27.4 19 254 -40 -38 24 47 -38 44 5 -38 7 30 -39 1 18 -0.38 - 72 0 0 -38 27 9 7 47 22.0 18 254 -39 -38 17 28 -38 36 49 -38 0 8 -38 54 5 -0.38 - 71 0 0 -38 19 6 7 47 16.7 17 253 -38 -38 9 23 -38 28 49 -37 52 0 -38 46 7 -0.39 - 70 0 0 -38 10 18 7 47 11.7 17 253 -38 -38 0 33 -38 20 2 -37 43 6 -38 37 24 -0.39 - 69 0 0 -38 0 42 7 47 6.8 16 252 -37 -37 50 55 -38 10 28 -37 33 25 -38 27 54 -0.39 - 68 0 0 -37 50 20 7 47 2.2 15 251 -36 -37 40 30 -38 0 8 -37 22 56 -38 17 38 -0.39 - 67 0 0 -37 39 9 7 46 57.7 14 251 -36 -37 29 17 -37 49 0 -37 11 39 -38 6 34 -0.39 - 66 0 0 -37 27 9 7 46 53.5 13 250 -35 -37 17 15 -37 37 3 -36 59 32 -37 54 41 -0.39 - 65 0 0 -37 14 20 7 46 49.5 13 250 -34 -37 4 23 -37 24 16 -36 46 35 -37 41 59 -0.39 - 64 0 0 -37 0 40 7 46 45.6 12 249 -34 -36 50 40 -37 10 39 -36 32 47 -37 28 28 -0.40 - 63 0 0 -36 46 9 7 46 42.0 11 248 -33 -36 36 6 -36 56 11 -36 18 7 -37 14 5 -0.40 - 62 0 0 -36 30 45 7 46 38.7 10 248 -32 -36 20 38 -36 40 50 -36 2 33 -36 58 50 -0.40 - 61 0 0 -36 14 27 7 46 35.5 9 247 -32 -36 4 17 -36 24 36 -35 46 6 -36 42 42 -0.40 - 60 0 0 -35 57 14 7 46 32.6 8 247 -31 -35 47 1 -36 7 27 -35 28 43 -36 25 39 -0.40 - 59 0 0 -35 39 5 7 46 30.0 8 246 -30 -35 28 48 -35 49 22 -35 10 23 -36 7 41 -0.41 - 58 0 0 -35 19 59 7 46 27.6 7 246 -30 -35 9 37 -35 30 19 -34 51 5 -35 48 46 -0.41 - 57 0 0 -34 59 54 7 46 25.5 6 245 -29 -34 49 28 -35 10 18 -34 30 48 -35 28 53 -0.41 - 56 0 0 -34 38 48 7 46 23.6 5 244 -28 -34 28 18 -34 49 17 -34 9 29 -35 8 0 -0.41 - 55 0 0 -34 16 40 7 46 22.0 4 244 -27 -34 6 5 -34 27 15 -33 47 8 -34 46 5 -0.42 - 54 0 0 -33 53 29 7 46 20.7 3 243 -27 -33 42 49 -34 4 8 -33 23 43 -34 23 8 -0.43 - 53 0 0 -33 29 12 7 46 19.8 2 243 -26 -33 18 27 -33 39 57 -32 59 11 -33 59 6 -0.44 - 52 0 0 -33 3 49 7 46 19.1 1 242 -25 -32 52 57 -33 14 39 -32 33 32 -33 33 58 -0.47 - 51 0 0 -32 37 15 7 46 18.8 0 242 -24 -32 26 18 -32 48 11 -32 6 42 -33 7 41 -0.68 Uncertainty in time = +/- 6 secs Prediction of 2023 Jul 15.5 Data for the target star ------------------------ * name: TYC 6905-01158-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 09 17.8444 DE: -23 49 48.359 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 09 17.8443 DE: -23 49 48.359 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.2 * B mag [mag]: 10.2 * Diameter [mas]: 0.30 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (916) America asteroid class: approx. diameter [km]: 33 approx. diameter ["]: 0.042 distance from Earth [AU]: 1.07800 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 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): 0.038", 0.005", 65.844° remarks: * orbital elements for (916)America : Mean anomaly = 326.9698921931 deg Arg. of pericenter = 41.7522176882 deg Long. of node = 329.7318072944 deg Inclination = 11.0942282596 deg Eccentricity = 0.2365046178 Semimajor axis = 2.3646450676 AU Perihelion dist = 1.8053955897 AU Mag: H = 11.46, G = 0.15 Epoch of elements : MJD 60556.33668958 TDT (2024 Sep 03.3367) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Apr24,6.15,2024,9,3,8.080545,0.286091,0.193300,-1.700048,2.515986,0.003278,0.000970,0.000001,0.000000 -161.4653,-23.7579,58.61,7.32,False TYC 6905-01158-1,20.15495678,-23.8300996,10.23,9.19,8.63,0.3,0,,20.17974956,-23.7579454,4.90,5.01,0,0,0 916,America,14.08,33.101,1.0780,0,0,-1.009,20.53,,1.8,0 0,326.8786,2024,9,3,41.7522,329.7318,11.0942,0.23650,2.36465,1.80540,11.46,5.0,0.15 1.893,0.0383,0.0053,66,0.0378,Known errors,0.95,0,-1,-1 20240903_1158-1,60140.54 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 12:55 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org