IOTA/IOTA-ES occultation update for (1614) Goldschmidt / TYC 0124-01364-1 event on 2012 Nov 02, 05:48 UT Visible from near Earth Summary ------- On 2012 Nov 02 UT, the 49 km diameter asteroid (1614) Goldschmidt will occult a 10.1 mag star in the constellation Orion for observers along a path across near Earth. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.6 mag to 15.7 mag (the magnitude of the asteroid) for at most 7.4 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 52 * date and approx. time of event: 2012 Nov 02, 05:48 - 2012 Nov 02, 05:48 UT * geocentric midpoint of event [JD]: 2456233.74152083 * magnitude of target star: 10.1 * magnitude drop [mag]: 5.6 * estimated maximum duration [s]: 7.4 * Moon: 90 % sunlit, 21° distance * Sun: 130° distance * rough path description: near Earth Additional comments ------------------- 18" double star The occultation path -------------------- * approximate projected width [km]: 49 * 1 sigma uncertainty interval [path widths]: +/- 1.24 * 1 sigma uncertainty interval [seconds]: +/- 8.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .041 +/- .032) * 1 sigma uncertainty ellipse (major, minor, PA): ( .041", .032", 86° ) * approx speed of asteroid's shadow [km/s]: 6.5402 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Path does not land on Earth. Data for the target star ------------------------ * name: TYC 0124-01364-1 * constellation : Orion * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 05 51 11.0288 DE: +04 28 35.917 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .025, .025 ) * V mag [mag]: 10.1 * B mag [mag]: 11.1 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1614) Goldschmidt approx. diameter [km]: 49 approx. diameter ["]: .031 distance from Earth [AU]: 2.18500 * orbital information: orbit source: Preston date of fit: 2012 Oct 25 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 988 number of rejected observations: 67 time covered by the observations: 1928 Sep 17 - 2012 Oct 08 1 sigma uncertainty ellipse (major, minor, PA): 0.032, 0.020, 84° remarks: * orbital elements for (1614) Goldschmidt : Mean anomaly = 296.07662548 deg Arg. of pericenter = 341.79416699 deg Long. of node = 162.48883569 deg Inclination = 14.06331403 deg Eccentricity = 0.07201194 Semimajor axis = 3.00065024 AU Perihelion dist = 2.78456761 AU Mag: H = 10.77, G = 0.15 Epoch of elements : MJD 56233.24200000 TDT (2012 Nov 02.242) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 2 1614 Goldschmidt 5h 47.8m UT 10.1 5 51 11.029 4 28 35.92TYC 0124-01364-1 11.1 15.7 49 7.4 2.185 -0.476 -13.05 -41.0614 4.481 88.95 -14.88 5.7965 -0.88797 0.47936 -1.76239 -3.24362 -0.00436 0.00121 2000 295.46188120121030.00000341.794167162.488836 14.0633140.07201194 3.0006502 2.784567610.8 5.00.15 RATE 1.8961870 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.041 0.032 86 2.24 0.038 0 0-2-3 056226.0020121102_1364-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Oct 25, 21:40 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org