IOTA/IOTA-ES occultation update for (13314) 1998 RH71 / TYC 5576-00820-1 event on 2024 Dec 25, 01:01 UT Visible from Summary ------- On 2024 Dec 25 UT, the 12.1295966216097 km diameter asteroid (13314) 1998 RH71 will occult a 9.4 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 10.67 mag to 20.08 mag (the magnitude of the asteroid) for at most 0.370 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: 97 * date and approx. time of event: 2024 Dec 25, 00:58 - 2024 Dec 25, 01:04 * geocentric midpoint of event [JD]: 2460669.54277725 * magnitude of target star: 9.41 * magnitude drop [mag]: 10.67 * estimated maximum duration [s]: 0.370 * Moon: 30 % sunlit, 15° distance * Sun: 51° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.39 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.008", 0.002", 114°) * approx speed of asteroid's shadow [km/s]: 33.4000 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5576-00820-1 by 13314 1998 RH71 on 2024 Dec 25 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 25 0 0 9 43 46 0 58 27.3 1 105 -50 9 40 14 9 47 18 9 37 30 9 50 2 .... 26 0 0 9 27 18 0 58 27.4 2 105 -49 9 23 46 9 30 50 9 21 1 9 33 35 0.17 27 0 0 9 10 27 0 58 27.6 3 105 -48 9 6 54 9 14 0 9 4 9 9 16 44 0.17 28 0 0 8 53 13 0 58 27.8 4 106 -47 8 49 40 8 56 46 8 46 55 8 59 31 0.17 29 0 0 8 35 36 0 58 28.0 5 106 -46 8 32 3 8 39 10 8 29 18 8 41 55 0.17 30 0 0 8 17 37 0 58 28.4 6 106 -45 8 14 4 8 21 11 8 11 18 8 23 57 0.17 31 0 0 7 59 16 0 58 28.8 7 106 -44 7 55 42 8 2 50 7 52 56 8 5 36 0.17 32 0 0 7 40 33 0 58 29.2 8 106 -43 7 36 58 7 44 7 7 34 12 7 46 53 0.17 33 0 0 7 21 28 0 58 29.8 9 106 -42 7 17 53 7 25 3 7 15 6 7 27 49 0.17 34 0 0 7 2 1 0 58 30.4 10 106 -41 6 58 26 7 5 36 6 55 39 7 8 23 0.17 35 0 0 6 42 13 0 58 31.0 11 107 -40 6 38 37 6 45 49 6 35 50 6 48 36 0.17 36 0 0 6 22 4 0 58 31.7 12 107 -39 6 18 28 6 25 40 6 15 41 6 28 28 0.17 37 0 0 6 1 35 0 58 32.5 13 107 -37 5 57 58 6 5 11 5 55 11 6 7 59 0.17 38 0 0 5 40 45 0 58 33.4 14 107 -36 5 37 8 5 44 22 5 34 20 5 47 9 0.17 39 0 0 5 19 35 0 58 34.3 15 107 -35 5 15 58 5 23 12 5 13 9 5 26 0 0.17 40 0 0 4 58 5 0 58 35.3 17 107 -34 4 54 28 5 1 43 4 51 39 5 4 31 0.17 41 0 0 4 36 16 0 58 36.3 18 107 -33 4 32 38 4 39 54 4 29 50 4 42 43 0.17 42 0 0 4 14 8 0 58 37.5 19 107 -32 4 10 30 4 17 46 4 7 41 4 20 35 0.17 43 0 0 3 51 42 0 58 38.6 20 107 -31 3 48 3 3 55 20 3 45 14 3 58 10 0.17 44 0 0 3 28 57 0 58 39.9 21 107 -30 3 25 18 3 32 36 3 22 29 3 35 26 0.17 45 0 0 3 5 55 0 58 41.2 22 107 -29 3 2 15 3 9 34 2 59 26 3 12 24 0.17 46 0 0 2 42 35 0 58 42.6 23 107 -28 2 38 55 2 46 15 2 36 5 2 49 5 0.17 47 0 0 2 18 59 0 58 44.0 24 107 -27 2 15 19 2 22 39 2 12 28 2 25 29 0.17 48 0 0 1 55 6 0 58 45.5 25 107 -26 1 51 25 1 58 46 1 48 35 2 1 37 0.17 49 0 0 1 30 57 0 58 47.1 26 107 -25 1 27 16 1 34 38 1 24 25 1 37 28 0.17 50 0 0 1 6 33 0 58 48.8 27 107 -24 1 2 52 1 10 14 1 0 1 1 13 5 0.17 51 0 0 0 41 54 0 58 50.5 28 107 -22 0 38 13 0 45 35 0 35 21 0 48 27 0.17 52 0 0 0 17 1 0 58 52.2 29 107 -21 0 13 19 0 20 42 0 10 28 0 23 34 0.17 53 0 0 - 0 8 6 0 58 54.1 30 107 -20 - 0 11 48 - 0 4 24 - 0 14 40 - 0 1 32 0.17 54 0 0 - 0 33 26 0 58 56.0 32 107 -19 - 0 37 8 - 0 29 44 - 0 40 0 - 0 26 52 0.17 55 0 0 - 0 58 59 0 58 57.9 33 107 -18 - 1 2 41 - 0 55 16 - 1 5 33 - 0 52 24 0.17 56 0 0 - 1 24 43 0 59 0.0 34 107 -17 - 1 28 26 - 1 21 1 - 1 31 19 - 1 18 8 0.16 57 0 0 - 1 50 39 0 59 2.1 35 107 -16 - 1 54 22 - 1 46 57 - 1 57 15 - 1 44 4 0.16 58 0 0 - 2 16 46 0 59 4.2 36 107 -15 - 2 20 29 - 2 13 3 - 2 23 22 - 2 10 10 0.16 59 0 0 - 2 43 3 0 59 6.4 37 107 -14 - 2 46 46 - 2 39 20 - 2 49 40 - 2 36 27 0.16 60 0 0 - 3 9 29 0 59 8.7 38 106 -13 - 3 13 13 - 3 5 46 - 3 16 6 - 3 2 53 0.16 61 0 0 - 3 36 5 0 59 11.0 39 106 -12 - 3 39 48 - 3 32 21 - 3 42 42 - 3 29 27 0.16 62 0 0 - 4 2 48 0 59 13.4 40 106 -10 - 4 6 32 - 3 59 4 - 4 9 25 - 3 56 10 0.16 63 0 0 - 4 29 38 0 59 15.8 41 106 -9 - 4 33 23 - 4 25 54 - 4 36 16 - 4 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263 66 -31 28 47 -31 21 52 -31 31 27 -31 19 11 0.17 -170 0 0 -31 15 55 1 4 36.9 16 262 65 -31 19 22 -31 12 27 -31 22 3 -31 9 46 0.17 -169 0 0 -31 6 8 1 4 37.6 15 262 65 -31 9 36 -31 2 40 -31 12 17 -30 59 59 0.17 -168 0 0 -30 56 0 1 4 38.4 14 261 64 -30 59 28 -30 52 31 -31 2 9 -30 49 50 0.17 -167 0 0 -30 45 29 1 4 39.1 13 261 63 -30 48 57 -30 42 0 -30 51 39 -30 39 19 0.17 -166 0 0 -30 34 36 1 4 39.8 12 260 62 -30 38 5 -30 31 7 -30 40 46 -30 28 25 0.17 -165 0 0 -30 23 21 1 4 40.4 12 260 61 -30 26 50 -30 19 52 -30 29 32 -30 17 10 0.17 -164 0 0 -30 11 44 1 4 41.0 11 259 61 -30 15 13 -30 8 14 -30 17 55 -30 5 32 0.18 -163 0 0 -29 59 45 1 4 41.5 10 259 60 -30 3 15 -29 56 15 -30 5 57 -29 53 33 0.18 -162 0 0 -29 47 24 1 4 42.0 9 258 59 -29 50 54 -29 43 54 -29 53 37 -29 41 11 0.18 -161 0 0 -29 34 41 1 4 42.4 8 258 58 -29 38 11 -29 31 11 -29 40 54 -29 28 28 0.18 -160 0 0 -29 21 36 1 4 42.8 7 257 57 -29 25 7 -29 18 6 -29 27 50 -29 15 23 0.18 -159 0 0 -29 8 10 1 4 43.2 6 257 56 -29 11 41 -29 4 39 -29 14 24 -29 1 55 0.19 -158 0 0 -28 54 21 1 4 43.5 5 256 55 -28 57 53 -28 50 50 -29 0 36 -28 48 6 0.19 -157 0 0 -28 40 11 1 4 43.8 4 256 55 -28 43 43 -28 36 40 -28 46 27 -28 33 56 0.20 -156 0 0 -28 25 40 1 4 44.0 3 255 54 -28 29 12 -28 22 8 -28 31 56 -28 19 24 0.21 -155 0 0 -28 10 46 1 4 44.1 3 255 53 -28 14 19 -28 7 14 -28 17 3 -28 4 30 0.23 -154 0 0 -27 55 32 1 4 44.3 2 254 52 -27 59 4 -27 51 59 -28 1 49 -27 49 14 0.27 -153 0 0 -27 39 56 1 4 44.3 1 254 51 -27 43 29 -27 36 23 -27 46 14 -27 33 38 0.41 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.8 Data for the target star ------------------------ * name: TYC 5576-00820-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 14 39 17.7539 DE: -14 40 18.607 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 14 39 17.7540 DE: -14 40 18.608 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 9.4 * B mag [mag]: 10.0 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (13314) 1998 RH71 asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.004 distance from Earth [AU]: 3.85240 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#45 date of fit: 2023 Apr 25 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): 0.008", 0.002", 113.672° remarks: * orbital elements for (13314)1998 RH71 : Mean anomaly = 214.9738879522 deg Arg. of pericenter = 325.3226353795 deg Long. of node = 39.8356679820 deg Inclination = 4.7947689318 deg Eccentricity = 0.2154895826 Semimajor axis = 2.8004950294 AU Perihelion dist = 2.1970175245 AU Mag: H = 13.77, G = 0.15 Epoch of elements : MJD 60669.04277721 TDT (2024 Dec 25.0428) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#452023Apr25,0.37,2024,12,25,1.026654,-0.051568,-0.148423,17.795011,-6.223457,-0.004491,0.001491,-0.000001,0.000000 110.7215,-14.7788,164.62,-23.39,False TYC 5576-00820-1,14.65493161,-14.6718351,10.01,9.41,9.09,0.1,0,,14.67755569,-14.7788329,10.67,10.55,0,0,0 13314,1998 RH71,20.08,12.409,3.8524,0,0,2.801,-14.21,,1.0,0 0,214.7546,2024,12,24,325.3226,39.8357,4.7948,0.21549,2.80050,2.19702,13.77,5.0,0.15 1.387,0.0083,0.0016,114,0.0017,Known errors,1.24,0,-1,-1 20241225_0820-1,60140.75 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 18:05 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org