IOTA/IOTA-ES occultation update for (751) Faina / UCAC4 306-283145 event on 2024 Dec 04, 01:36 UT Visible from Summary ------- On 2024 Dec 04 UT, the 108.147 km diameter asteroid (751) Faina will occult a 11.4 mag star in the constellation Piscis Austrinus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.31 mag to 13.52 mag (the magnitude of the asteroid) for at most 3.480 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: 100 * date and approx. time of event: 2024 Dec 04, 01:34 - 2024 Dec 04, 01:39 * geocentric midpoint of event [JD]: 2460648.56720554 * magnitude of target star: 11.35 * magnitude drop [mag]: 2.31 * estimated maximum duration [s]: 3.480 * Moon: 8 % sunlit, 34° distance * Sun: 67° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 161 * 1 sigma uncertainty interval [path widths]: +/- 0.08 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.003", 80°) * approx speed of asteroid's shadow [km/s]: 31.1089 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 306-283145 by 751 Faina on 2024 Dec 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 149 0 0 .. .. .... .. .. .. .. .. .. 16 57 35 .. .. .. 16 49 38 .. .. .. .... 150 0 0 17 14 17 1 34 28.6 1 121 50 16 24 50 18 4 39 16 16 57 18 12 51 .... 151 0 0 16 42 12 1 34 28.8 2 121 51 15 53 10 17 32 8 15 45 22 17 40 15 -0.72 152 0 0 16 11 13 1 34 29.1 3 121 52 15 22 35 17 0 43 15 14 51 17 8 46 -0.85 153 0 0 15 41 20 1 34 29.4 4 121 52 14 53 5 16 30 26 14 45 24 16 38 25 -0.91 154 0 0 15 12 33 1 34 29.9 5 122 53 14 24 40 16 1 15 14 17 2 16 9 10 -0.95 155 0 0 14 44 50 1 34 30.5 6 122 53 13 57 18 15 33 11 13 49 44 15 41 2 -0.97 156 0 0 14 18 12 1 34 31.2 8 122 53 13 31 0 15 6 12 13 23 29 15 14 0 -0.99 157 0 0 13 52 39 1 34 32.0 9 123 54 13 5 46 14 40 19 12 58 18 14 48 3 -1.00 158 0 0 13 28 10 1 34 32.9 10 123 54 12 41 35 14 15 31 12 34 9 14 23 12 -1.02 159 0 0 13 4 45 1 34 33.9 11 123 54 12 18 27 13 51 47 12 11 4 13 59 26 -1.02 160 0 0 12 42 23 1 34 34.9 12 123 55 11 56 21 13 29 8 11 49 1 13 36 44 -1.03 161 0 0 12 21 4 1 34 36.1 13 124 55 11 35 18 13 7 33 11 28 0 13 15 6 -1.04 162 0 0 12 0 48 1 34 37.4 14 124 55 11 15 17 12 47 2 11 8 1 12 54 33 -1.04 163 0 0 11 41 35 1 34 38.7 15 124 55 10 56 17 12 27 35 10 49 4 12 35 3 -1.05 164 0 0 11 23 24 1 34 40.1 16 124 55 10 38 19 12 9 10 10 31 8 12 16 36 -1.05 165 0 0 11 6 15 1 34 41.7 17 125 55 10 21 23 11 51 49 10 14 13 11 59 12 -1.06 166 0 0 10 50 8 1 34 43.3 18 125 55 10 5 27 11 35 30 9 58 19 11 42 52 -1.06 167 0 0 10 35 3 1 34 44.9 19 125 55 9 50 32 11 20 13 9 43 26 11 27 33 -1.06 168 0 0 10 20 58 1 34 46.7 20 126 55 9 36 37 11 5 59 9 29 33 11 13 17 -1.06 169 0 0 10 7 55 1 34 48.6 20 126 54 9 23 43 10 52 46 9 16 40 11 0 2 -1.07 170 0 0 9 55 52 1 34 50.5 21 126 54 9 11 48 10 40 35 9 4 47 10 47 50 -1.07 171 0 0 9 44 50 1 34 52.5 22 127 54 9 0 54 10 29 25 8 53 53 10 36 39 -1.07 172 0 0 9 34 49 1 34 54.5 23 127 54 8 50 59 10 19 16 8 44 0 10 26 29 -1.07 173 0 0 9 25 48 1 34 56.7 24 127 53 8 42 4 10 10 9 8 35 6 10 17 20 -1.08 174 0 0 9 17 47 1 34 58.9 25 128 53 8 34 9 10 2 2 8 27 11 10 9 13 -1.08 175 0 0 9 10 46 1 35 1.2 26 128 52 8 27 12 9 54 56 8 20 15 10 2 6 -1.08 176 0 0 9 4 45 1 35 3.5 27 129 52 8 21 15 9 48 51 8 14 19 9 56 0 -1.08 177 0 0 8 59 44 1 35 6.0 27 129 51 8 16 17 9 43 47 8 9 21 9 50 55 -1.08 178 0 0 8 55 42 1 35 8.4 28 130 51 8 12 18 9 39 43 8 5 23 9 46 51 -1.08 179 0 0 8 52 41 1 35 11.0 29 130 50 8 9 19 9 36 39 8 2 23 9 43 47 -1.08 -180 0 0 8 50 39 1 35 13.6 30 131 50 8 7 18 9 34 36 8 0 23 9 41 44 -1.09 -179 0 0 8 49 37 1 35 16.3 31 131 49 8 6 16 9 33 33 7 59 21 9 40 41 -1.09 -178 0 0 8 49 34 1 35 19.0 31 132 48 8 6 13 9 33 31 7 59 18 9 40 39 -1.09 -177 0 0 8 50 32 1 35 21.8 32 132 48 8 7 10 9 34 30 8 0 15 9 41 38 -1.09 -176 0 0 8 52 29 1 35 24.7 33 133 47 8 9 5 9 36 29 8 2 10 9 43 37 -1.09 -175 0 0 8 55 26 1 35 27.6 34 133 46 8 12 0 9 39 28 8 5 4 9 46 37 -1.09 -174 0 0 8 59 23 1 35 30.5 34 134 46 8 15 54 9 43 29 8 8 58 9 50 38 -1.09 -173 0 0 9 4 21 1 35 33.6 35 135 45 8 20 48 9 48 30 8 13 51 9 55 40 -1.09 -172 0 0 9 10 18 1 35 36.6 35 135 44 8 26 41 9 54 33 8 19 44 10 1 43 -1.09 -171 0 0 9 17 17 1 35 39.8 36 136 43 8 33 34 10 1 36 8 26 36 10 8 48 -1.09 -170 0 0 9 25 16 1 35 43.0 37 137 42 8 41 27 10 9 42 8 34 28 10 16 54 -1.09 -169 0 0 9 34 16 1 35 46.2 37 138 41 8 50 21 10 18 49 8 43 20 10 26 2 -1.09 -168 0 0 9 44 17 1 35 49.5 38 139 41 9 0 14 10 28 57 8 53 13 10 36 12 -1.10 -167 0 0 9 55 19 1 35 52.8 38 139 40 9 11 8 10 40 8 9 4 5 10 47 25 -1.10 -166 0 0 10 7 23 1 35 56.2 39 140 39 9 23 4 10 52 22 9 15 59 10 59 40 -1.10 -165 0 0 10 20 29 1 35 59.6 39 141 38 9 36 0 11 5 38 9 28 54 11 12 58 -1.10 -164 0 0 10 34 38 1 36 3.1 40 142 37 9 49 58 11 19 58 9 42 50 11 27 19 -1.10 -163 0 0 10 49 49 1 36 6.6 40 143 36 10 4 57 11 35 20 9 57 48 11 42 44 -1.10 -162 0 0 11 6 2 1 36 10.1 40 144 35 10 20 59 11 51 47 10 13 48 11 59 12 -1.10 -161 0 0 11 23 20 1 36 13.7 41 145 34 10 38 3 12 9 18 10 30 50 12 16 45 -1.10 -160 0 0 11 41 41 1 36 17.3 41 146 33 10 56 10 12 27 53 10 48 55 12 35 23 -1.10 -159 0 0 12 1 5 1 36 21.0 41 147 32 11 15 21 12 47 33 11 8 3 12 55 6 -1.10 -158 0 0 12 21 35 1 36 24.7 42 148 31 11 35 34 13 8 19 11 28 14 13 15 54 -1.10 -157 0 0 12 43 9 1 36 28.4 42 150 30 11 56 52 13 30 11 11 49 29 13 37 49 -1.10 -156 0 0 13 5 49 1 36 32.2 42 151 29 12 19 14 13 53 8 12 11 49 14 0 50 -1.10 -155 0 0 13 29 34 1 36 36.0 42 152 28 12 42 41 14 17 13 12 35 13 14 24 57 -1.10 -154 0 0 13 54 25 1 36 39.8 42 153 27 13 7 13 14 42 24 12 59 42 14 50 12 -1.10 -153 0 0 14 20 23 1 36 43.7 42 154 26 13 32 51 15 8 44 13 25 16 15 16 35 -1.10 -152 0 0 14 47 28 1 36 47.5 42 156 25 13 59 34 15 36 11 13 51 57 15 44 6 -1.10 -151 0 0 15 15 40 1 36 51.4 42 157 24 14 27 24 16 4 47 14 19 43 16 12 46 -1.10 -150 0 0 15 45 1 1 36 55.3 42 158 23 14 56 21 16 34 32 14 48 36 16 42 35 -1.10 -149 0 0 16 15 29 1 36 59.3 42 159 22 15 26 25 17 5 26 15 18 36 17 13 33 -1.10 -148 0 0 16 47 6 1 37 3.2 42 161 21 15 57 37 17 37 31 15 49 44 17 45 42 -1.10 -147 0 0 17 19 53 1 37 7.1 42 162 19 16 29 57 18 10 45 16 22 0 18 19 2 -1.10 -146 0 0 17 53 49 1 37 11.1 41 163 18 17 3 25 18 45 11 16 55 23 18 53 32 -1.10 -145 0 0 18 28 55 1 37 15.0 41 165 17 17 38 1 19 20 48 17 29 55 19 29 15 -1.10 -144 0 0 19 5 11 1 37 19.0 41 166 16 18 13 47 19 57 37 18 5 36 20 6 9 -1.10 -143 0 0 19 42 38 1 37 23.0 40 167 15 18 50 42 20 35 38 18 42 26 20 44 15 -1.10 -142 0 0 20 21 16 1 37 26.9 40 168 14 19 28 47 21 14 51 19 20 26 21 23 34 -1.10 -141 0 0 21 1 5 1 37 30.9 40 170 13 20 8 1 21 55 17 19 59 35 22 4 6 -1.10 -140 0 0 21 42 6 1 37 34.8 39 171 11 20 48 25 22 36 56 20 39 54 22 45 52 -1.10 -139 0 0 22 24 18 1 37 38.7 38 172 10 21 30 0 23 19 48 21 21 22 23 28 51 -1.10 -138 0 0 23 7 41 1 37 42.6 38 173 9 22 12 45 24 3 54 22 4 1 24 13 3 -1.10 -137 0 0 23 52 17 1 37 46.4 37 174 8 22 56 39 24 49 13 22 47 50 24 58 30 -1.10 -136 0 0 24 38 5 1 37 50.3 37 176 7 23 41 45 25 35 46 23 32 48 25 45 11 -1.10 -135 0 0 25 25 4 1 37 54.0 36 177 6 24 28 0 26 23 33 24 18 56 26 33 5 -1.10 -134 0 0 26 13 15 1 37 57.8 35 178 4 25 15 25 27 12 33 25 6 14 27 22 14 -1.10 -133 0 0 27 2 37 1 38 1.5 34 179 3 26 3 59 28 2 47 25 54 41 28 12 37 -1.10 -132 0 0 27 53 11 1 38 5.1 33 180 2 26 53 43 28 54 14 26 44 17 29 4 13 -1.10 -131 0 0 28 44 55 1 38 8.7 33 181 1 27 44 35 29 46 54 27 35 2 29 57 2 -1.10 -130 0 0 29 37 49 1 38 12.3 32 182 0 28 36 36 30 40 47 28 26 54 30 51 5 -1.10 -129 0 0 30 31 52 1 38 15.7 31 183 -1 29 29 43 31 35 51 29 19 53 31 46 20 -1.10 -128 0 0 31 27 5 1 38 19.1 30 184 -3 30 23 58 32 32 7 30 13 58 32 42 46 -1.10 -127 0 0 32 23 25 1 38 22.4 29 185 -4 31 19 17 33 29 33 31 9 9 33 40 24 -1.10 -126 0 0 33 20 52 1 38 25.6 28 186 -5 32 15 42 34 28 9 32 5 24 34 39 11 -1.10 -125 0 0 34 19 24 1 38 28.8 27 187 -6 33 13 9 35 27 53 33 2 41 35 39 7 -1.10 -124 0 0 35 19 0 1 38 31.8 26 188 -7 34 11 37 36 28 44 34 0 59 36 40 11 -1.11 -123 0 0 36 19 39 1 38 34.7 24 189 -8 35 11 6 37 30 40 35 0 17 37 42 21 -1.11 -122 0 0 37 21 18 1 38 37.5 23 190 -10 36 11 32 38 33 41 36 0 33 38 45 35 -1.11 -121 0 0 38 23 56 1 38 40.2 22 191 -11 37 12 55 39 37 43 37 1 43 39 49 52 -1.11 -120 0 0 39 27 30 1 38 42.8 21 191 -12 38 15 11 40 42 45 38 3 48 40 55 10 -1.11 -119 0 0 40 31 58 1 38 45.2 20 192 -13 39 18 18 41 48 45 39 6 43 42 1 26 -1.11 -118 0 0 41 37 18 1 38 47.5 19 193 -14 40 22 13 42 55 40 40 10 25 43 8 37 -1.11 -117 0 0 42 43 25 1 38 49.7 17 194 -15 41 26 54 44 3 27 41 14 53 44 16 41 -1.12 -116 0 0 43 50 18 1 38 51.7 16 195 -16 42 32 17 45 12 3 42 20 3 45 25 35 -1.12 -115 0 0 44 57 52 1 38 53.6 15 196 -17 43 38 18 46 21 24 43 25 50 46 35 15 -1.12 -114 0 0 46 6 3 1 38 55.3 13 196 -18 44 44 54 47 31 27 44 32 12 47 45 38 -1.12 -113 0 0 47 14 48 1 38 56.9 12 197 -19 45 52 0 48 42 7 45 39 4 48 56 39 -1.13 -112 0 0 48 24 2 1 38 58.3 11 198 -20 46 59 33 49 53 21 46 46 21 50 8 13 -1.13 -111 0 0 49 33 40 1 38 59.6 10 199 -21 48 7 26 51 5 2 47 53 59 51 20 17 -1.14 -110 0 0 50 43 36 1 39 0.6 8 200 -21 49 15 36 52 17 6 49 1 53 52 32 44 -1.15 -109 0 0 51 53 45 1 39 1.6 7 200 -22 50 23 56 53 29 27 50 9 58 53 45 28 -1.16 -108 0 0 53 4 2 1 39 2.3 6 201 -23 51 32 22 54 41 58 51 18 7 54 58 24 -1.17 -107 0 0 54 14 19 1 39 2.9 4 202 -24 52 40 46 55 54 34 52 26 15 56 11 25 -1.20 -106 0 0 55 24 29 1 39 3.3 3 203 -24 53 49 3 57 7 6 53 34 16 57 24 24 -1.24 -105 0 0 56 34 27 1 39 3.6 2 204 -25 54 57 5 58 19 28 54 42 2 .. .. .. -1.35 -104 0 0 57 44 4 1 39 3.7 0 205 -26 56 4 47 .. .. .. 55 49 28 .. .. .. -2.02 -103 0 0 .. .. .... .. .. .. .. .. .. 57 12 1 .. .. .. 56 56 25 .. .. .. .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 306-283145 * constellation : Piscis Austrinus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 42 15.7824 DE: -28 52 48.043 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 42 15.7821 DE: -28 52 48.044 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.4 * B mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (751) Faina asteroid class: approx. diameter [km]: 108 approx. diameter ["]: 0.062 distance from Earth [AU]: 2.42270 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#64 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): 0.013", 0.003", 79.952° remarks: * orbital elements for (751)Faina : Mean anomaly = 331.4300308381 deg Arg. of pericenter = 302.8219824984 deg Long. of node = 78.8113594703 deg Inclination = 15.5984121412 deg Eccentricity = 0.1510916388 Semimajor axis = 2.5507267765 AU Perihelion dist = 2.1653332877 AU Mag: H = 8.73, G = 0.08 Epoch of elements : MJD 60648.06720558 TDT (2024 Dec 04.0672) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#642023Apr24,3.48,2024,12,4,1.612933,-0.340694,0.656495,15.580629,8.096426,0.005082,0.001232,-0.000001,-0.000001 -131.6346,-28.7688,153.36,-22.28,False UCAC4 306-283145,21.70438405,-28.8800118,11.64,11.35,11.19,0.0,0,,21.72844165,-28.7688307,2.30,2.05,0,0,0 751,Faina,13.52,108.147,2.4227,0,0,4.302,29.40,,5.4,0 0,331.1718,2024,12,3,302.8220,78.8114,15.5984,0.15109,2.55073,2.16533,8.73,5.0,0.15 1.080,0.0130,0.0032,80,0.0050,Known errors,0.93,0,-1,-1 20241204_283145,60140.73 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:24 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org