IOTA/IOTA-ES occultation update for (3499) Hoppe / TYC 6346-00811-1 event on 2024 Dec 15, 21:18 UT Visible from Summary ------- On 2024 Dec 15 UT, the 15.5786356857299 km diameter asteroid (3499) Hoppe will occult a 9.6 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 8.63 mag to 18.18 mag (the magnitude of the asteroid) for at most 0.410 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 Dec 15, 21:15 - 2024 Dec 15, 21:21 * geocentric midpoint of event [JD]: 2460660.38769984 * magnitude of target star: 9.55 * magnitude drop [mag]: 8.63 * estimated maximum duration [s]: 0.410 * Moon: 99 % sunlit, 137° distance * Sun: 50° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 16 * 1 sigma uncertainty interval [path widths]: +/- 0.10 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.001", 76°) * approx speed of asteroid's shadow [km/s]: 38.5506 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6346-00811-1 by 3499 Hoppe on 2024 Dec 15 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 -178 0 0 - 6 2 46 21 15 34.3 1 107 50 - 6 7 18 - 5 58 14 - 6 8 15 - 5 57 18 .... -177 0 0 - 6 20 22 21 15 34.4 2 107 51 - 6 24 53 - 6 15 50 - 6 25 50 - 6 14 54 -0.07 -176 0 0 - 6 37 37 21 15 34.5 3 106 52 - 6 42 9 - 6 33 6 - 6 43 5 - 6 32 10 -0.10 -175 0 0 - 6 54 33 21 15 34.7 4 106 53 - 6 59 3 - 6 50 2 - 7 0 0 - 6 49 5 -0.12 -174 0 0 - 7 11 7 21 15 34.9 5 106 54 - 7 15 38 - 7 6 37 - 7 16 34 - 7 5 41 -0.13 -173 0 0 - 7 27 22 21 15 35.2 6 106 55 - 7 31 52 - 7 22 52 - 7 32 48 - 7 21 55 -0.14 -172 0 0 - 7 43 15 21 15 35.6 7 106 56 - 7 47 44 - 7 38 45 - 7 48 41 - 7 37 49 -0.14 -171 0 0 - 7 58 47 21 15 35.9 8 106 57 - 8 3 16 - 7 54 17 - 8 4 12 - 7 53 21 -0.15 -170 0 0 - 8 13 57 21 15 36.4 9 106 58 - 8 18 26 - 8 9 28 - 8 19 22 - 8 8 32 -0.15 -169 0 0 - 8 28 47 21 15 36.9 10 105 58 - 8 33 15 - 8 24 18 - 8 34 11 - 8 23 22 -0.15 -168 0 0 - 8 43 14 21 15 37.4 11 105 59 - 8 47 42 - 8 38 46 - 8 48 38 - 8 37 50 -0.15 -167 0 0 - 8 57 19 21 15 38.1 12 105 60 - 9 1 47 - 8 52 51 - 9 2 43 - 8 51 55 -0.16 -166 0 0 - 9 11 2 21 15 38.7 13 105 61 - 9 15 30 - 9 6 35 - 9 16 26 - 9 5 39 -0.16 -165 0 0 - 9 24 23 21 15 39.4 14 105 62 - 9 28 50 - 9 19 56 - 9 29 46 - 9 19 1 -0.16 -164 0 0 - 9 37 22 21 15 40.2 15 105 63 - 9 41 49 - 9 32 55 - 9 42 44 - 9 32 0 -0.16 -163 0 0 - 9 49 58 21 15 41.0 16 105 64 - 9 54 24 - 9 45 31 - 9 55 20 - 9 44 36 -0.16 -162 0 0 -10 2 11 21 15 41.8 17 104 65 -10 6 37 - 9 57 45 -10 7 33 - 9 56 50 -0.16 -161 0 0 -10 14 2 21 15 42.7 18 104 66 -10 18 27 -10 9 36 -10 19 23 -10 8 40 -0.16 -160 0 0 -10 25 29 21 15 43.7 19 104 67 -10 29 54 -10 21 3 -10 30 50 -10 20 8 -0.16 -159 0 0 -10 36 33 21 15 44.7 20 104 68 -10 40 58 -10 32 8 -10 41 54 -10 31 13 -0.16 -158 0 0 -10 47 14 21 15 45.7 21 104 69 -10 51 39 -10 42 49 -10 52 34 -10 41 54 -0.16 -157 0 0 -10 57 32 21 15 46.8 22 104 70 -11 1 57 -10 53 7 -11 2 52 -10 52 12 -0.16 -156 0 0 -11 7 26 21 15 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238 -8 9 14 24 9 23 52 9 13 25 9 24 51 -0.17 - 45 0 0 9 44 42 21 20 21.4 40 239 -9 9 39 58 9 49 26 9 38 59 9 50 25 -0.17 - 44 0 0 10 10 16 21 20 23.4 39 239 -11 10 5 32 10 15 0 10 4 33 10 15 59 -0.17 - 43 0 0 10 35 47 21 20 25.4 38 239 -12 10 31 4 10 40 31 10 30 4 10 41 31 -0.17 - 42 0 0 11 1 17 21 20 27.3 37 240 -13 10 56 33 11 6 1 10 55 34 11 7 0 -0.17 - 41 0 0 11 26 43 21 20 29.1 35 240 -14 11 21 59 11 31 27 11 21 0 11 32 26 -0.17 - 40 0 0 11 52 6 21 20 30.9 34 240 -15 11 47 22 11 56 49 11 46 23 11 57 49 -0.17 - 39 0 0 12 17 24 21 20 32.7 33 240 -16 12 12 40 12 22 8 12 11 41 12 23 7 -0.17 - 38 0 0 12 42 37 21 20 34.4 32 241 -17 12 37 54 12 47 21 12 36 54 12 48 20 -0.17 - 37 0 0 13 7 45 21 20 36.0 31 241 -18 13 3 1 13 12 28 13 2 2 13 13 28 -0.17 - 36 0 0 13 32 46 21 20 37.6 30 241 -19 13 28 3 13 37 30 13 27 4 13 38 29 -0.17 - 35 0 0 13 57 41 21 20 39.1 29 242 -20 13 52 58 14 2 25 13 51 59 14 3 24 -0.17 - 34 0 0 14 22 29 21 20 40.6 28 242 -21 14 17 46 14 27 12 14 16 47 14 28 11 -0.17 - 33 0 0 14 47 8 21 20 42.0 27 242 -22 14 42 25 14 51 51 14 41 26 14 52 50 -0.17 - 32 0 0 15 11 39 21 20 43.4 26 243 -23 15 6 57 15 16 22 15 5 58 15 17 21 -0.17 - 31 0 0 15 36 1 21 20 44.7 25 243 -24 15 31 19 15 40 44 15 30 20 15 41 43 -0.17 - 30 0 0 16 0 14 21 20 46.0 24 243 -25 15 55 31 16 4 56 15 54 32 16 5 55 -0.17 - 29 0 0 16 24 16 21 20 47.2 23 244 -26 16 19 34 16 28 58 16 18 35 16 29 57 -0.17 - 28 0 0 16 48 8 21 20 48.4 22 244 -27 16 43 26 16 52 49 16 42 27 16 53 48 -0.17 - 27 0 0 17 11 48 21 20 49.5 21 244 -29 17 7 6 17 16 30 17 6 8 17 17 28 -0.17 - 26 0 0 17 35 17 21 20 50.5 20 244 -30 17 30 35 17 39 58 17 29 37 17 40 57 -0.17 - 25 0 0 17 58 33 21 20 51.5 19 245 -31 17 53 52 18 3 15 17 52 54 18 4 13 -0.16 - 24 0 0 18 21 37 21 20 52.4 18 245 -32 18 16 57 18 26 18 18 15 58 18 27 17 -0.16 - 23 0 0 18 44 28 21 20 53.3 17 245 -33 18 39 48 18 49 9 18 38 49 18 50 8 -0.16 - 22 0 0 19 7 6 21 20 54.2 16 246 -34 19 2 26 19 11 46 19 1 27 19 12 45 -0.16 - 21 0 0 19 29 30 21 20 54.9 15 246 -35 19 24 50 19 34 10 19 23 51 19 35 8 -0.16 - 20 0 0 19 51 39 21 20 55.7 14 246 -36 19 46 59 19 56 19 19 46 1 19 57 17 -0.16 - 19 0 0 20 13 34 21 20 56.3 13 247 -37 20 8 54 20 18 13 20 7 56 20 19 11 -0.16 - 18 0 0 20 35 13 21 20 56.9 12 247 -38 20 30 34 20 39 52 20 29 36 20 40 50 -0.16 - 17 0 0 20 56 37 21 20 57.5 11 248 -39 20 51 59 21 1 16 20 51 1 21 2 14 -0.16 - 16 0 0 21 17 46 21 20 58.0 10 248 -40 21 13 7 21 22 24 21 12 9 21 23 22 -0.16 - 15 0 0 21 38 38 21 20 58.5 9 248 -41 21 34 0 21 43 16 21 33 2 21 44 14 -0.16 - 14 0 0 21 59 14 21 20 58.9 8 249 -42 21 54 36 22 3 51 21 53 38 22 4 49 -0.16 - 13 0 0 22 19 33 21 20 59.2 7 249 -43 22 14 56 22 24 10 22 13 58 22 25 8 -0.16 - 12 0 0 22 39 35 21 20 59.5 6 249 -44 22 34 58 22 44 11 22 34 0 22 45 9 -0.16 - 11 0 0 22 59 19 21 20 59.8 5 250 -45 22 54 43 23 3 56 22 53 45 23 4 53 -0.16 - 10 0 0 23 18 46 21 21 0.0 4 250 -46 23 14 11 23 23 22 23 13 13 23 24 20 -0.16 - 9 0 0 23 37 56 21 21 0.1 3 251 -46 23 33 20 23 42 31 23 32 23 23 43 29 -0.15 - 8 0 0 23 56 47 21 21 0.2 2 251 -47 23 52 12 24 1 22 23 51 15 24 2 20 -0.15 - 7 0 0 24 15 20 21 21 0.3 1 251 -48 24 10 45 24 19 55 24 9 48 24 20 52 -0.12 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 6346-00811-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 05 50.3918 DE: -16 42 40.536 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 05 50.3917 DE: -16 42 40.536 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 9.6 * B mag [mag]: 10.1 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3499) Hoppe asteroid class: approx. diameter [km]: 16 approx. diameter ["]: 0.007 distance from Earth [AU]: 3.12110 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 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): 0.019", 0.001", 75.675° remarks: * orbital elements for (3499)Hoppe : Mean anomaly = 353.9781968499 deg Arg. of pericenter = 191.0065483906 deg Long. of node = 148.3404482625 deg Inclination = 2.2282644390 deg Eccentricity = 0.1660618921 Semimajor axis = 3.1113414099 AU Perihelion dist = 2.5946661683 AU Mag: H = 12.74, G = 0.15 Epoch of elements : MJD 60659.88769967 TDT (2024 Dec 15.8877) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,0.41,2024,12,15,21.304796,-0.046313,0.162562,20.942699,5.904090,0.004286,0.001290,-0.000001,0.000000 -87.7854,-16.6130,-140.68,-23.32,False TYC 6346-00811-1,21.09733110,-16.7112598,10.07,9.55,9.27,0.1,0,,21.12031913,-16.6130248,8.63,8.46,0,0,0 3499,Hoppe,18.18,15.805,3.1211,0,0,4.106,16.64,,1.6,0 0,353.8188,2024,12,15,191.0065,148.3404,2.2283,0.16606,3.11134,2.59467,12.74,5.0,0.15 1.104,0.0187,0.0006,76,0.0007,Known errors,0.92,0,-1,-1 20241215_0811-1,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:47 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org