IOTA/IOTA-ES occultation update for (614) Pia / UCAC4 370-076928 event on 2024 Sep 06, 10:52 UT Visible from Summary ------- On 2024 Sep 06 UT, the 26.6139035129994 km diameter asteroid (614) Pia will occult a 12.0 mag star in the constellation Ophiuchus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.74 mag to 16.71 mag (the magnitude of the asteroid) for at most 1.430 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 Sep 06, 10:47 - 2024 Sep 06, 10:58 * geocentric midpoint of event [JD]: 2460559.95327600 * magnitude of target star: 11.98 * magnitude drop [mag]: 4.74 * estimated maximum duration [s]: 1.430 * Moon: 10 % sunlit, 47° distance * Sun: 84° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 28 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.007, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.007", 0.001", 92°) * approx speed of asteroid's shadow [km/s]: 18.7288 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 370-076928 by 614 Pia on 2024 Sep 6 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 9 0 0 - 3 1 59 10 47 14.2 0 106 77 - 3 9 51 - 2 54 7 - 3 11 45 - 2 52 14 .... 10 0 0 - 3 19 44 10 47 14.3 1 106 78 - 3 27 36 - 3 11 51 - 3 29 30 - 3 9 58 0.25 11 0 0 - 3 37 44 10 47 14.5 2 106 78 - 3 45 37 - 3 29 51 - 3 47 31 - 3 27 57 0.26 12 0 0 - 3 55 59 10 47 14.9 3 106 78 - 4 3 53 - 3 48 5 - 4 5 47 - 3 46 11 0.27 13 0 0 - 4 14 29 10 47 15.3 4 106 79 - 4 22 23 - 4 6 35 - 4 24 18 - 4 4 41 0.27 14 0 0 - 4 33 13 10 47 15.9 6 106 79 - 4 41 8 - 4 25 19 - 4 43 3 - 4 23 24 0.27 15 0 0 - 4 52 12 10 47 16.6 7 106 79 - 5 0 8 - 4 44 17 - 5 2 2 - 4 42 22 0.27 16 0 0 - 5 11 25 10 47 17.4 8 106 79 - 5 19 21 - 5 3 29 - 5 21 15 - 5 1 34 0.27 17 0 0 - 5 30 50 10 47 18.3 9 106 78 - 5 38 47 - 5 22 54 - 5 40 42 - 5 20 59 0.27 18 0 0 - 5 50 29 10 47 19.3 10 105 78 - 5 58 26 - 5 42 32 - 6 0 22 - 5 40 38 0.27 19 0 0 - 6 10 21 10 47 20.5 11 105 78 - 6 18 18 - 6 2 23 - 6 20 14 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48 0.29 179 0 0 -30 16 2 10 58 0.1 15 260 -62 -30 23 50 -30 8 15 -30 25 42 -30 6 23 0.29 180 0 0 -30 2 21 10 58 1.5 14 259 -62 -30 10 9 -29 54 34 -30 12 2 -29 52 41 0.29 -179 0 0 -29 48 23 10 58 2.7 13 259 -63 -29 56 12 -29 40 35 -29 58 4 -29 38 42 0.29 -178 0 0 -29 34 8 10 58 3.9 12 258 -64 -29 41 57 -29 26 20 -29 43 50 -29 24 27 0.29 -177 0 0 -29 19 37 10 58 5.1 11 258 -64 -29 27 27 -29 11 48 -29 29 20 -29 9 55 0.30 -176 0 0 -29 4 50 10 58 6.1 10 257 -65 -29 12 40 -28 57 0 -29 14 33 -28 55 7 0.30 -175 0 0 -28 49 46 10 58 7.1 9 257 -65 -28 57 36 -28 41 55 -28 59 30 -28 40 2 0.30 -174 0 0 -28 34 26 10 58 7.9 8 256 -66 -28 42 17 -28 26 35 -28 44 11 -28 24 41 0.30 -173 0 0 -28 18 50 10 58 8.7 7 256 -67 -28 26 42 -28 10 59 -28 28 36 -28 9 5 0.31 -172 0 0 -28 2 59 10 58 9.4 6 255 -67 -28 10 51 -27 55 7 -28 12 45 -27 53 13 0.31 -171 0 0 -27 46 52 10 58 10.0 6 255 -68 -27 54 45 -27 38 59 -27 56 39 -27 37 6 0.32 -170 0 0 -27 30 30 10 58 10.5 5 254 -68 -27 38 24 -27 22 37 -27 40 18 -27 20 43 0.33 -169 0 0 -27 13 53 10 58 10.9 4 254 -69 -27 21 47 -27 6 0 -27 23 42 -27 4 5 0.34 -168 0 0 -26 57 2 10 58 11.2 3 253 -69 -27 4 56 -26 49 7 -27 6 51 -26 47 13 0.36 -167 0 0 -26 39 55 10 58 11.5 2 253 -69 -26 47 51 -26 32 1 -26 49 45 -26 30 6 0.41 -166 0 0 -26 22 35 10 58 11.6 1 252 -70 -26 30 31 -26 14 40 -26 32 25 -26 12 45 0.56 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.5 Data for the target star ------------------------ * name: UCAC4 370-076928 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 28 04.1346 DE: -16 07 23.229 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 28 04.1345 DE: -16 07 23.229 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 12.0 * B mag [mag]: 12.9 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (614) Pia asteroid class: approx. diameter [km]: 27 approx. diameter ["]: 0.013 distance from Earth [AU]: 2.89680 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#60 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): 0.007", 0.001", 92.39° remarks: * orbital elements for (614)Pia : Mean anomaly = 205.4460852864 deg Arg. of pericenter = 210.1858899654 deg Long. of node = 217.0496343569 deg Inclination = 7.0199014696 deg Eccentricity = 0.1085417760 Semimajor axis = 2.6947957710 AU Perihelion dist = 2.4022978519 AU Mag: H = 11.06, G = 0.15 Epoch of elements : MJD 60559.45327583 TDT (2024 Sep 06.4533) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#602023Apr24,1.43,2024,9,6,10.878624,-0.054255,-0.254339,10.338907,-2.203350,0.005629,-0.000814,0.000000,0.000000 98.1642,-16.1781,16.38,6.16,False UCAC4 370-076928,16.46781520,-16.1231193,12.91,11.98,11.48,0.1,0,,16.49124542,-16.1781124,4.74,4.80,0,0,0 614,Pia,16.71,26.824,2.8968,0,0,2.179,-6.69,,1.4,0 0,205.3451,2024,9,6,210.1859,217.0496,7.0199,0.10854,2.69480,2.40230,11.05,5.0,0.15 1.121,0.0073,0.0009,92,0.0015,Known errors,1.28,0,-1,-1 20240906_076928,60140.54 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org