IOTA/IOTA-ES occultation update for (377) Campania / TYC 0233-01267-1 event on 2023 Feb 18, 09:38 UT Visible from New Zealand, Australia Summary ------- On 2023 Feb 18 UT, the 92.9 km diameter asteroid (377) Campania will occult a 8.4 mag star in the constellation Hydra for observers along a path across New Zealand, Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.55 mag to 12.88 mag (the magnitude of the asteroid) for at most 7.910 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: 100 * date and approx. time of event: 2023 Feb 18, 09:32 - 2023 Feb 18, 09:44 * geocentric midpoint of event [JD]: 2459993.90190534 * magnitude of target star: 8.35 * magnitude drop [mag]: 4.55 * estimated maximum duration [s]: 7.910 * Moon: 6 % sunlit, 158° distance * Sun: 166° distance * rough path description: New Zealand, Australia The occultation path -------------------- * approximate projected width [km]: 151 * 1 sigma uncertainty interval [path widths]: +/- 0.09 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.006", 108°) * approx speed of asteroid's shadow [km/s]: 11.7397 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0233-01267-1 by 377 Campania on 2023 Feb 18 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 118 0 0 -26 51 59 9 44 18.6 0 83 14 -26 10 54 -27 33 43 -26 3 18 -27 41 35 .... 119 0 0 -26 46 27 9 44 18.4 1 83 13 -26 5 26 -27 28 7 -25 57 50 -27 35 58 0.82 120 0 0 -26 41 35 9 44 17.9 2 82 12 -26 0 37 -27 23 11 -25 53 2 -27 31 2 1.01 121 0 0 -26 37 23 9 44 17.3 3 82 11 -25 56 28 -27 18 55 -25 48 54 -27 26 45 1.09 122 0 0 -26 33 51 9 44 16.4 4 81 10 -25 52 59 -27 15 20 -25 45 25 -27 23 10 1.13 123 0 0 -26 30 58 9 44 15.4 5 81 9 -25 50 9 -27 12 26 -25 42 36 -27 20 15 1.16 124 0 0 -26 28 46 9 44 14.1 6 81 8 -25 47 58 -27 10 11 -25 40 25 -27 18 0 1.18 125 0 0 -26 27 13 9 44 12.6 7 80 7 -25 46 27 -27 8 37 -25 38 55 -27 16 25 1.20 126 0 0 -26 26 20 9 44 10.9 8 80 6 -25 45 36 -27 7 42 -25 38 3 -27 15 30 1.21 127 0 0 -26 26 6 9 44 9.0 8 79 6 -25 45 23 -27 7 27 -25 37 50 -27 15 15 1.22 128 0 0 -26 26 32 9 44 6.9 9 79 5 -25 45 49 -27 7 53 -25 38 17 -27 15 40 1.22 129 0 0 -26 27 37 9 44 4.6 10 78 4 -25 46 54 -27 8 57 -25 39 22 -27 16 45 1.23 130 0 0 -26 29 21 9 44 2.0 11 78 3 -25 48 38 -27 10 42 -25 41 6 -27 18 30 1.23 131 0 0 -26 31 45 9 43 59.3 12 77 2 -25 51 1 -27 13 6 -25 43 29 -27 20 54 1.24 132 0 0 -26 34 47 9 43 56.4 13 77 1 -25 54 3 -27 16 9 -25 46 30 -27 23 57 1.24 133 0 0 -26 38 28 9 43 53.3 14 76 0 -25 57 43 -27 19 52 -25 50 10 -27 27 40 1.24 134 0 0 -26 42 48 9 43 50.0 14 76 0 -26 2 1 -27 24 13 -25 54 28 -27 32 2 1.24 135 0 0 -26 47 47 9 43 46.5 15 75 -1 -26 6 58 -27 29 14 -25 59 24 -27 37 3 1.25 136 0 0 -26 53 24 9 43 42.8 16 75 -2 -26 12 32 -27 34 53 -26 4 58 -27 42 43 1.25 137 0 0 -26 59 39 9 43 38.9 17 74 -3 -26 18 45 -27 41 12 -26 11 11 -27 49 1 1.25 138 0 0 -27 6 33 9 43 34.9 18 74 -4 -26 25 35 -27 48 8 -26 18 1 -27 55 59 1.25 139 0 0 -27 14 4 9 43 30.6 19 73 -5 -26 33 4 -27 55 43 -26 25 28 -28 3 35 1.25 140 0 0 -27 22 14 9 43 26.2 19 72 -5 -26 41 9 -28 3 57 -26 33 33 -28 11 49 1.25 141 0 0 -27 31 1 9 43 21.6 20 72 -6 -26 49 52 -28 12 48 -26 42 15 -28 20 41 1.25 142 0 0 -27 40 26 9 43 16.9 21 71 -7 -26 59 13 -28 22 18 -26 51 35 -28 30 11 1.25 143 0 0 -27 50 28 9 43 11.9 22 71 -8 -27 9 10 -28 32 25 -27 1 31 -28 40 20 1.26 144 0 0 -28 1 7 9 43 6.8 22 70 -9 -27 19 44 -28 43 10 -27 12 5 -28 51 6 1.26 145 0 0 -28 12 24 9 43 1.5 23 69 -9 -27 30 55 -28 54 32 -27 23 14 -29 2 29 1.26 146 0 0 -28 24 17 9 42 56.1 24 69 -10 -27 42 42 -29 6 32 -27 35 1 -29 14 30 1.26 147 0 0 -28 36 47 9 42 50.5 25 68 -11 -27 55 6 -29 19 8 -27 47 23 -29 27 8 1.26 148 0 0 -28 49 53 9 42 44.7 25 67 -12 -28 8 6 -29 32 22 -28 0 22 -29 40 22 1.26 149 0 0 -29 3 36 9 42 38.8 26 67 -12 -28 21 42 -29 46 12 -28 13 56 -29 54 14 1.26 150 0 0 -29 17 55 9 42 32.8 27 66 -13 -28 35 53 -30 0 38 -28 28 7 -30 8 42 1.26 151 0 0 -29 32 49 9 42 26.6 27 65 -14 -28 50 40 -30 15 41 -28 42 52 -30 23 46 1.26 152 0 0 -29 48 20 9 42 20.2 28 64 -14 -29 6 2 -30 31 20 -28 58 13 -30 39 26 1.26 153 0 0 -30 4 25 9 42 13.7 29 63 -15 -29 21 59 -30 47 34 -29 14 8 -30 55 43 1.26 154 0 0 -30 21 6 9 42 7.1 29 63 -16 -29 38 31 -31 4 24 -29 30 39 -31 12 34 1.26 155 0 0 -30 38 21 9 42 0.4 30 62 -16 -29 55 37 -31 21 49 -29 47 43 -31 30 1 1.26 156 0 0 -30 56 11 9 41 53.5 30 61 -17 -30 13 18 -31 39 49 -30 5 22 -31 48 3 1.27 157 0 0 -31 14 35 9 41 46.5 31 60 -18 -30 31 32 -31 58 23 -30 23 34 -32 6 39 1.27 158 0 0 -31 33 33 9 41 39.4 32 59 -18 -30 50 20 -32 17 32 -30 42 20 -32 25 50 1.27 159 0 0 -31 53 5 9 41 32.2 32 58 -19 -31 9 41 -32 37 15 -31 1 39 -32 45 35 1.27 160 0 0 -32 13 9 9 41 24.8 33 57 -19 -31 29 34 -32 57 31 -31 21 31 -33 5 53 1.27 161 0 0 -32 33 47 9 41 17.4 33 56 -20 -31 50 1 -33 18 20 -31 41 55 -33 26 45 1.27 162 0 0 -32 54 57 9 41 9.8 34 55 -20 -32 10 59 -33 39 42 -32 2 52 -33 48 9 1.27 163 0 0 -33 16 39 9 41 2.2 34 54 -21 -32 32 30 -34 1 37 -32 24 20 -34 10 7 1.27 164 0 0 -33 38 53 9 40 54.5 34 53 -21 -32 54 31 -34 24 4 -32 46 19 -34 32 36 1.27 165 0 0 -34 1 38 9 40 46.7 35 52 -22 -33 17 4 -34 47 2 -33 8 50 -34 55 37 1.27 166 0 0 -34 24 54 9 40 38.8 35 51 -22 -33 40 7 -35 10 32 -33 31 50 -35 19 9 1.27 167 0 0 -34 48 40 9 40 30.8 36 50 -23 -34 3 40 -35 34 32 -33 55 21 -35 43 12 1.27 168 0 0 -35 12 56 9 40 22.8 36 49 -23 -34 27 42 -35 59 3 -34 19 21 -36 7 45 1.27 169 0 0 -35 37 42 9 40 14.7 36 47 -24 -34 52 14 -36 24 3 -34 43 50 -36 32 48 1.28 170 0 0 -36 2 56 9 40 6.5 37 46 -24 -35 17 14 -36 49 32 -35 8 47 -36 58 21 1.28 171 0 0 -36 28 38 9 39 58.3 37 45 -24 -35 42 41 -37 15 30 -35 34 12 -37 24 21 1.28 172 0 0 -36 54 48 9 39 50.1 37 44 -25 -36 8 37 -37 41 56 -36 0 5 -37 50 50 1.28 173 0 0 -37 21 25 9 39 41.8 37 42 -25 -36 34 59 -38 8 49 -36 26 24 -38 17 47 1.28 174 0 0 -37 48 29 9 39 33.5 37 41 -25 -37 1 47 -38 36 9 -36 53 9 -38 45 10 1.28 175 0 0 -38 15 58 9 39 25.1 38 40 -26 -37 29 0 -39 3 55 -37 20 20 -39 12 59 1.28 176 0 0 -38 43 52 9 39 16.8 38 39 -26 -37 56 39 -39 32 6 -37 47 56 -39 41 14 1.28 177 0 0 -39 12 11 9 39 8.4 38 37 -26 -38 24 41 -40 0 42 -38 15 55 -40 9 53 1.28 178 0 0 -39 40 53 9 39 0.0 38 36 -26 -38 53 7 -40 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49 59 -46 53 16 1.30 -169 0 0 -46 23 9 9 37 13.4 36 19 -27 -45 31 34 -47 16 3 -45 22 4 -47 26 6 1.30 -168 0 0 -46 55 45 9 37 5.6 36 18 -27 -46 3 52 -47 48 59 -45 54 19 -47 59 5 1.30 -167 0 0 -47 28 29 9 36 57.9 35 16 -27 -46 36 18 -48 22 3 -46 26 42 -48 32 12 1.30 -166 0 0 -48 1 21 9 36 50.3 35 15 -26 -47 8 52 -48 55 14 -46 59 13 -49 5 27 1.30 -165 0 0 -48 34 19 9 36 42.8 35 14 -26 -47 41 33 -49 28 31 -47 31 50 -49 38 48 1.30 -164 0 0 -49 7 22 9 36 35.4 34 13 -26 -48 14 18 -50 1 52 -48 4 33 -50 12 13 1.30 -163 0 0 -49 40 28 9 36 28.1 34 11 -26 -48 47 7 -50 35 17 -48 37 19 -50 45 42 1.30 -162 0 0 -50 13 37 9 36 20.9 34 10 -25 -49 19 59 -51 8 44 -49 10 7 -51 19 12 1.31 -161 0 0 -50 46 46 9 36 13.9 33 9 -25 -49 52 52 -51 42 11 -49 42 57 -51 52 43 1.31 -160 0 0 -51 19 55 9 36 7.0 33 8 -25 -50 25 45 -52 15 37 -50 15 47 -52 26 13 1.31 -159 0 0 -51 53 2 9 36 0.2 32 7 -25 -50 58 36 -52 49 2 -50 48 35 -52 59 40 1.31 -158 0 0 -52 26 6 9 35 53.6 32 5 -24 -51 31 24 -53 22 22 -51 21 21 -53 33 4 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Uncertainty in time = +/- 2 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: TYC 0233-01267-1 * constellation : Hydra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 09 13 36.0456 DE: +05 57 09.236 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 09 13 36.0456 DE: +05 57 09.236 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (377) Campania asteroid class: approx. diameter [km]: 93 approx. diameter ["]: 0.074 distance from Earth [AU]: 1.72790 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#70 date of fit: 2023 Feb 07 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): 0.022", 0.006", 107.543° remarks: * orbital elements for (377)Campania : Mean anomaly = 87.6567921558 deg Arg. of pericenter = 196.3453392327 deg Long. of node = 209.9306571957 deg Inclination = 6.6775635678 deg Eccentricity = 0.0754130902 Semimajor axis = 2.6904819428 AU Perihelion dist = 2.4875843853 AU Mag: H = 9.09, G = 0.15 Epoch of elements : MJD 59993.40201389 TDT (2023 Feb 18.4020) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#702023Feb07,7.91,2023,2,18,9.645728,-0.334503,-0.713351,-5.999320,2.813320,0.001272,0.000620,0.000001,-0.000001 -154.0736,5.8563,38.79,-11.66,False TYC 0233-01267-1,9.22667935,5.9525655,0.00,8.35,0.00,0.0,0,,9.24724190,5.8562684,4.54,0.00,0,0,0 377,Campania,12.88,92.9,1.7279,0,0,-2.045,14.32,,4.6,0 0,87.5670,2023,2,18,196.3453,209.9307,6.6776,0.07541,2.69048,2.48758,9.11,5.0,0.15 1.093,0.0220,0.0063,108,0.0069,Known errors,-1.00,-1,-1,-1 20230218_1267-1,59990.86 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:38 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org