IOTA/IOTA-ES occultation update for (1073) Gellivara / UCAC4 334-089897 event on 2024 Feb 03, 23:36 UT Visible from Summary ------- On 2024 Feb 03 UT, the 27.317 km diameter asteroid (1073) Gellivara will occult a 11.7 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 6.04 mag to 17.77 mag (the magnitude of the asteroid) for at most 0.800 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 Feb 03, 23:33 - 2024 Feb 03, 23:39 * geocentric midpoint of event [JD]: 2460344.48348354 * magnitude of target star: 11.73 * magnitude drop [mag]: 6.04 * estimated maximum duration [s]: 0.800 * Moon: 39 % sunlit, 21° distance * Sun: 57° 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]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.001", 97°) * approx speed of asteroid's shadow [km/s]: 34.0223 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 334-089897 by 1073 Gellivara on 2024 Feb 3 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 49 0 0 20 42 3 23 33 12.9 0 115 -53 20 33 33 20 50 34 20 31 28 20 52 39 .... 50 0 0 20 15 31 23 33 12.9 1 115 -52 20 7 1 20 24 2 20 4 56 20 26 7 -0.01 51 0 0 19 48 51 23 33 13.0 2 116 -51 19 40 20 19 57 22 19 38 15 19 59 27 -0.14 52 0 0 19 22 3 23 33 13.2 3 116 -50 19 13 32 19 30 34 19 11 27 19 32 39 -0.19 53 0 0 18 55 8 23 33 13.4 4 116 -49 18 46 37 19 3 39 18 44 32 19 5 45 -0.21 54 0 0 18 28 7 23 33 13.7 5 117 -48 18 19 36 18 36 38 18 17 30 18 38 44 -0.23 55 0 0 18 1 0 23 33 14.1 6 117 -47 17 52 29 18 9 32 17 50 24 18 11 37 -0.24 56 0 0 17 33 49 23 33 14.5 7 117 -46 17 25 18 17 42 20 17 23 12 17 44 26 -0.24 57 0 0 17 6 33 23 33 15.0 8 118 -45 16 58 2 17 15 5 16 55 57 17 17 10 -0.25 58 0 0 16 39 14 23 33 15.6 10 118 -44 16 30 43 16 47 46 16 28 38 16 49 51 -0.25 59 0 0 16 11 52 23 33 16.2 11 118 -43 16 3 22 16 20 24 16 1 16 16 22 29 -0.26 60 0 0 15 44 29 23 33 16.9 12 119 -42 15 35 58 15 53 0 15 33 53 15 55 6 -0.26 61 0 0 15 17 4 23 33 17.7 13 119 -41 15 8 33 15 25 35 15 6 28 15 27 40 -0.26 62 0 0 14 49 38 23 33 18.5 14 119 -40 14 41 8 14 58 9 14 39 2 15 0 15 -0.26 63 0 0 14 22 13 23 33 19.4 15 119 -39 14 13 43 14 30 44 14 11 37 14 32 49 -0.26 64 0 0 13 54 48 23 33 20.4 16 120 -38 13 46 18 14 3 19 13 44 13 14 5 24 -0.27 65 0 0 13 27 26 23 33 21.4 17 120 -37 13 18 56 13 35 56 13 16 51 13 38 1 -0.27 66 0 0 13 0 5 23 33 22.5 18 120 -36 12 51 36 13 8 35 12 49 31 13 10 40 -0.27 67 0 0 12 32 48 23 33 23.7 19 120 -35 12 24 19 12 41 18 12 22 14 12 43 23 -0.27 68 0 0 12 5 35 23 33 24.9 20 121 -34 11 57 6 12 14 4 11 55 1 12 16 9 -0.27 69 0 0 11 38 26 23 33 26.2 21 121 -33 11 29 58 11 46 55 11 27 53 11 49 0 -0.27 70 0 0 11 11 23 23 33 27.6 22 121 -32 11 2 55 11 19 51 11 0 50 11 21 56 -0.27 71 0 0 10 44 25 23 33 29.0 23 121 -31 10 35 58 10 52 53 10 33 53 10 54 58 -0.27 72 0 0 10 17 35 23 33 30.5 25 122 -30 10 9 8 10 26 2 10 7 3 10 28 7 -0.27 73 0 0 9 50 52 23 33 32.1 26 122 -29 9 42 25 9 59 19 9 40 21 10 1 23 -0.27 74 0 0 9 24 17 23 33 33.7 27 122 -27 9 15 51 9 32 43 9 13 47 9 34 48 -0.27 75 0 0 8 57 51 23 33 35.4 28 122 -26 8 49 26 9 6 17 8 47 22 9 8 21 -0.27 76 0 0 8 31 35 23 33 37.1 29 123 -25 8 23 10 8 40 0 8 21 6 8 42 4 -0.28 77 0 0 8 5 29 23 33 39.0 30 123 -24 7 57 5 8 13 53 7 55 1 8 15 57 -0.28 78 0 0 7 39 34 23 33 40.8 31 123 -23 7 31 10 7 47 58 7 29 7 7 50 1 -0.28 79 0 0 7 13 50 23 33 42.8 32 123 -22 7 5 28 7 22 13 7 3 24 7 24 17 -0.28 80 0 0 6 48 19 23 33 44.8 33 124 -21 6 39 57 6 56 42 6 37 54 6 58 45 -0.28 81 0 0 6 23 1 23 33 46.8 34 124 -20 6 14 40 6 31 23 6 12 36 6 33 26 -0.28 82 0 0 5 57 56 23 33 48.9 35 124 -19 5 49 36 6 6 17 5 47 33 6 8 20 -0.28 83 0 0 5 33 6 23 33 51.1 36 124 -18 5 24 46 5 41 26 5 22 43 5 43 29 -0.28 84 0 0 5 8 30 23 33 53.3 37 125 -17 5 0 11 5 16 49 4 58 8 5 18 52 -0.28 85 0 0 4 44 9 23 33 55.5 38 125 -16 4 35 51 4 52 28 4 33 49 4 54 31 -0.28 86 0 0 4 20 5 23 33 57.9 39 125 -15 4 11 47 4 28 23 4 9 45 4 30 25 -0.28 87 0 0 3 56 16 23 34 0.2 41 126 -14 3 48 0 4 4 34 3 45 58 4 6 36 -0.28 88 0 0 3 32 45 23 34 2.6 42 126 -12 3 24 29 3 41 2 3 22 28 3 43 4 -0.28 89 0 0 3 9 32 23 34 5.1 43 126 -11 3 1 16 3 17 47 2 59 15 3 19 49 -0.28 90 0 0 2 46 36 23 34 7.6 44 127 -10 2 38 22 2 54 50 2 36 20 2 56 52 -0.28 91 0 0 2 23 59 23 34 10.2 45 127 -9 2 15 45 2 32 12 2 13 44 2 34 14 -0.28 92 0 0 2 1 40 23 34 12.8 46 127 -8 1 53 28 2 9 53 1 51 27 2 11 54 -0.28 93 0 0 1 39 42 23 34 15.4 47 128 -7 1 31 30 1 47 54 1 29 29 1 49 55 -0.28 94 0 0 1 18 3 23 34 18.1 48 128 -6 1 9 52 1 26 14 1 7 51 1 28 15 -0.28 95 0 0 0 56 44 23 34 20.8 49 128 -5 0 48 34 1 4 55 0 46 34 1 6 55 -0.28 96 0 0 0 35 46 23 34 23.6 50 129 -4 0 27 37 0 43 56 0 25 37 0 45 56 -0.28 97 0 0 0 15 10 23 34 26.4 51 129 -3 0 7 1 0 23 18 0 5 1 0 25 18 -0.28 98 0 0 - 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2 30 18 23 38 41.1 33 244 75 - 2 38 18 - 2 22 17 - 2 40 16 - 2 20 19 -0.29 -176 0 0 - 2 13 7 23 38 43.0 32 244 75 - 2 21 8 - 2 5 5 - 2 23 6 - 2 3 7 -0.29 -175 0 0 - 1 55 32 23 38 44.8 31 244 75 - 2 3 34 - 1 47 30 - 2 5 32 - 1 45 31 -0.29 -174 0 0 - 1 37 34 23 38 46.7 30 244 75 - 1 45 37 - 1 29 31 - 1 47 35 - 1 27 32 -0.29 -173 0 0 - 1 19 12 23 38 48.4 29 244 75 - 1 27 16 - 1 11 8 - 1 29 15 - 1 9 10 -0.29 -172 0 0 - 1 0 29 23 38 50.1 28 244 75 - 1 8 33 - 0 52 24 - 1 10 32 - 0 50 25 -0.29 -171 0 0 - 0 41 22 23 38 51.8 27 244 74 - 0 49 27 - 0 33 16 - 0 51 27 - 0 31 17 -0.29 -170 0 0 - 0 21 54 23 38 53.4 26 244 74 - 0 30 0 - 0 13 47 - 0 31 59 - 0 11 48 -0.29 -169 0 0 - 0 2 3 23 38 54.9 25 244 73 - 0 10 10 0 6 4 - 0 12 10 0 8 4 -0.29 -168 0 0 0 18 8 23 38 56.4 24 244 73 0 10 0 0 26 17 0 8 1 0 28 17 -0.29 -167 0 0 0 38 41 23 38 57.8 23 244 72 0 30 32 0 46 50 0 28 32 0 48 50 -0.29 -166 0 0 0 59 35 23 38 59.2 22 244 72 0 51 25 1 7 45 0 49 25 1 9 45 -0.29 -165 0 0 1 20 48 23 39 0.5 21 244 71 1 12 38 1 28 59 1 10 38 1 31 0 -0.29 -164 0 0 1 42 22 23 39 1.7 19 244 70 1 34 11 1 50 34 1 32 10 1 52 35 -0.29 -163 0 0 2 4 15 23 39 2.9 18 244 70 1 56 3 2 12 28 1 54 2 2 14 29 -0.29 -162 0 0 2 26 27 23 39 4.0 17 245 69 2 18 14 2 34 41 2 16 13 2 36 42 -0.29 -161 0 0 2 48 58 23 39 5.1 16 245 68 2 40 44 2 57 12 2 38 43 2 59 14 -0.29 -160 0 0 3 11 47 23 39 6.1 15 245 67 3 3 32 3 20 2 3 1 31 3 22 4 -0.29 -159 0 0 3 34 53 23 39 7.0 14 245 67 3 26 38 3 43 9 3 24 36 3 45 11 -0.29 -158 0 0 3 58 17 23 39 7.9 13 245 66 3 50 1 4 6 34 3 47 59 4 8 36 -0.29 -157 0 0 4 21 57 23 39 8.7 12 245 65 4 13 40 4 30 15 4 11 38 4 32 17 -0.29 -156 0 0 4 45 54 23 39 9.4 11 245 64 4 37 36 4 54 12 4 35 34 4 56 14 -0.29 -155 0 0 5 10 6 23 39 10.1 10 245 63 5 1 47 5 18 24 4 59 45 5 20 27 -0.29 -154 0 0 5 34 32 23 39 10.6 9 245 62 5 26 13 5 42 52 5 24 11 5 44 55 -0.29 -153 0 0 5 59 14 23 39 11.2 8 245 61 5 50 54 6 7 34 5 48 51 6 9 37 -0.29 -152 0 0 6 24 9 23 39 11.6 7 245 60 6 15 48 6 32 30 6 13 45 6 34 33 -0.29 -151 0 0 6 49 17 23 39 12.0 6 246 59 6 40 56 6 57 39 6 38 53 6 59 42 -0.29 -150 0 0 7 14 38 23 39 12.3 4 246 58 7 6 16 7 23 1 7 4 13 7 25 4 -0.29 -149 0 0 7 40 11 23 39 12.6 3 246 57 7 31 48 7 48 34 7 29 45 7 50 38 -0.29 -148 0 0 8 5 56 23 39 12.8 2 246 56 7 57 32 8 14 19 7 55 29 8 16 23 -0.29 -147 0 0 8 31 51 23 39 12.9 1 246 55 8 23 27 8 40 15 8 21 23 8 42 19 -0.29 -146 0 0 8 57 56 23 39 12.9 0 246 54 8 49 31 9 6 21 8 47 27 9 8 25 -0.33 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 13.2 Data for the target star ------------------------ * name: UCAC4 334-089897 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 04 36.0905 DE: -23 21 27.633 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 04 36.0906 DE: -23 21 27.633 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.7 * B mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1073) Gellivara asteroid class: approx. diameter [km]: 27 approx. diameter ["]: 0.011 distance from Earth [AU]: 3.47460 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#62 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): 0.018", 0.001", 96.665° remarks: * orbital elements for (1073)Gellivara : Mean anomaly = 293.4397379821 deg Arg. of pericenter = 289.8052832925 deg Long. of node = 39.5381942387 deg Inclination = 1.5980204601 deg Eccentricity = 0.1871170187 Semimajor axis = 3.1857400896 AU Perihelion dist = 2.5896339016 AU Mag: H = 11.79, G = 0.15 Epoch of elements : MJD 60343.98348350 TDT (2024 Feb 03.9835) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#622023Apr24,0.80,2024,2,3,23.603605,0.031472,0.276542,19.084122,-2.134789,-0.004994,0.000438,-0.000001,0.000000 128.8090,-23.3912,-170.61,-16.44,False UCAC4 334-089897,17.07669178,-23.3576758,12.45,11.73,11.34,0.0,0,,17.10068976,-23.3912258,6.04,5.98,0,0,0 1073,Gellivara,17.77,27.317,3.4746,0,0,3.509,-5.40,,2.0,0 0,293.2693,2024,2,3,289.8053,39.5382,1.5980,0.18712,3.18574,2.58963,11.78,5.0,0.15 1.123,0.0177,0.0013,97,0.0013,Known errors,0.91,0,-1,-1 20240203_089897,60138.15 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 13, 03:40 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org