IOTA/IOTA-ES occultation update for (7352) 1994CO / TYC 6308-01141-1 event on 2022 Oct 19, 07:03 UT Visible from New Zealand Summary ------- On 2022 Oct 19 UT, the 46.5 km diameter asteroid (7352) 1994CO will occult a 11.5 mag star in the constellation Sagittarius for observers along a path across New Zealand. In the case of an occultation, the combined light of the asteroid and the star will drop by 6.21 mag to 17.75 mag (the magnitude of the asteroid) for at most 2.550 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: 2022 Oct 19, 06:58 - 2022 Oct 19, 07:09 * geocentric midpoint of event [JD]: 2459871.79416692 * magnitude of target star: 11.54 * magnitude drop [mag]: 6.21 * estimated maximum duration [s]: 2.550 * Moon: 35 % sunlit, 153° distance * Sun: 82° distance * rough path description: New Zealand The occultation path -------------------- * approximate projected width [km]: 50 * 1 sigma uncertainty interval [path widths]: +/- 0.25 * 1 sigma uncertainty interval [seconds]: +/- 3.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.017, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.017", 0.003", 91°) * approx speed of asteroid's shadow [km/s]: 18.2553 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6308-01141-1 by 7352 1994CO on 2022 Oct 19 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 59 0 0 -20 27 51 6 58 13.9 1 112 74 -20 42 40 -20 13 3 -20 50 11 -20 5 35 .... 60 0 0 -20 50 51 6 58 14.0 2 112 74 -21 5 41 -20 36 4 -21 13 12 -20 28 35 0.38 61 0 0 -21 13 54 6 58 14.2 3 111 75 -21 28 44 -20 59 6 -21 36 15 -20 51 37 0.40 62 0 0 -21 36 58 6 58 14.6 4 111 75 -21 51 48 -21 22 9 -21 59 20 -21 14 40 0.41 63 0 0 -22 0 3 6 58 15.1 5 110 75 -22 14 53 -21 45 13 -22 22 25 -21 37 44 0.41 64 0 0 -22 23 7 6 58 15.7 6 110 76 -22 37 58 -22 8 18 -22 45 30 -22 0 48 0.42 65 0 0 -22 46 11 6 58 16.4 7 110 76 -23 1 3 -22 31 22 -23 8 35 -22 23 52 0.42 66 0 0 -23 9 14 6 58 17.2 8 109 76 -23 24 6 -22 54 24 -23 31 38 -22 46 55 0.42 67 0 0 -23 32 16 6 58 18.1 9 109 76 -23 47 7 -23 17 26 -23 54 39 -23 9 56 0.42 68 0 0 -23 55 15 6 58 19.2 10 108 76 -24 10 6 -23 40 25 -24 17 39 -23 32 55 0.42 69 0 0 -24 18 11 6 58 20.3 11 108 75 -24 33 3 -24 3 21 -24 40 35 -23 55 51 0.42 70 0 0 -24 41 4 6 58 21.6 12 108 75 -24 55 56 -24 26 14 -25 3 28 -24 18 44 0.42 71 0 0 -25 3 53 6 58 23.0 13 107 75 -25 18 45 -24 49 3 -25 26 17 -24 41 33 0.42 72 0 0 -25 26 38 6 58 24.4 14 107 75 -25 41 30 -25 11 48 -25 49 2 -25 4 18 0.42 73 0 0 -25 49 17 6 58 26.0 14 106 74 -26 4 9 -25 34 28 -26 11 41 -25 26 58 0.42 74 0 0 -26 11 52 6 58 27.7 15 106 74 -26 26 43 -25 57 2 -26 34 15 -25 49 32 0.42 75 0 0 -26 34 20 6 58 29.5 16 105 73 -26 49 11 -26 19 30 -26 56 43 -26 12 1 0.42 76 0 0 -26 56 41 6 58 31.4 17 105 73 -27 11 32 -26 41 52 -27 19 4 -26 34 22 0.42 77 0 0 -27 18 55 6 58 33.3 18 104 72 -27 33 46 -27 4 7 -27 41 17 -26 56 37 0.42 78 0 0 -27 41 2 6 58 35.4 19 104 71 -27 55 52 -27 26 14 -28 3 23 -27 18 45 0.42 79 0 0 -28 3 1 6 58 37.6 20 103 71 -28 17 50 -27 48 13 -28 25 21 -27 40 44 0.42 80 0 0 -28 24 51 6 58 39.8 21 103 70 -28 39 40 -28 10 3 -28 47 11 -28 2 35 0.42 81 0 0 -28 46 32 6 58 42.2 22 102 69 -29 1 20 -28 31 45 -29 8 51 -28 24 16 0.42 82 0 0 -29 8 3 6 58 44.6 23 102 69 -29 22 51 -28 53 17 -29 30 21 -28 45 49 0.42 83 0 0 -29 29 24 6 58 47.1 24 101 68 -29 44 12 -29 14 39 -29 51 42 -29 7 11 0.42 84 0 0 -29 50 35 6 58 49.7 25 100 67 -30 5 22 -29 35 50 -30 12 51 -29 28 23 0.42 85 0 0 -30 11 35 6 58 52.4 26 100 66 -30 26 21 -29 56 51 -30 33 50 -29 49 24 0.42 86 0 0 -30 32 24 6 58 55.2 27 99 65 -30 47 9 -30 17 41 -30 54 38 -30 10 14 0.42 87 0 0 -30 53 1 6 58 58.0 28 99 65 -31 7 46 -30 38 19 -31 15 14 -30 30 52 0.42 88 0 0 -31 13 26 6 59 0.9 29 98 64 -31 28 10 -30 58 44 -31 35 38 -30 51 19 0.42 89 0 0 -31 33 39 6 59 3.9 30 97 63 -31 48 21 -31 18 58 -31 55 49 -31 11 33 0.42 90 0 0 -31 53 39 6 59 7.0 30 97 62 -32 8 20 -31 38 59 -32 15 47 -31 31 34 0.42 91 0 0 -32 13 25 6 59 10.1 31 96 61 -32 28 6 -31 58 46 -32 35 32 -31 51 22 0.42 92 0 0 -32 32 58 6 59 13.3 32 95 61 -32 47 38 -32 18 20 -32 55 4 -32 10 56 0.42 93 0 0 -32 52 17 6 59 16.5 33 95 60 -33 6 56 -32 37 40 -33 14 22 -32 30 17 0.42 94 0 0 -33 11 23 6 59 19.9 34 94 59 -33 26 0 -32 56 47 -33 33 25 -32 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0 -37 26 57 7 7 20.1 41 275 -28 -37 41 16 -37 12 39 -37 48 31 -37 5 25 0.43 -152 0 0 -37 11 55 7 7 23.8 41 274 -29 -37 26 15 -36 57 36 -37 33 32 -36 50 22 0.43 -151 0 0 -36 56 36 7 7 27.4 40 273 -30 -37 10 58 -36 42 16 -37 18 15 -36 35 1 0.43 -150 0 0 -36 41 0 7 7 31.0 39 272 -31 -36 55 23 -36 26 38 -37 2 40 -36 19 22 0.43 -149 0 0 -36 25 6 7 7 34.6 38 271 -31 -36 39 31 -36 10 44 -36 46 49 -36 3 27 0.43 -148 0 0 -36 8 56 7 7 38.1 37 270 -32 -36 23 22 -35 54 32 -36 30 41 -35 47 15 0.43 -147 0 0 -35 52 30 7 7 41.6 37 270 -33 -36 6 57 -35 38 4 -36 14 16 -35 30 47 0.43 -146 0 0 -35 35 46 7 7 45.0 36 269 -34 -35 50 15 -35 21 20 -35 57 35 -35 14 2 0.43 -145 0 0 -35 18 47 7 7 48.3 35 268 -34 -35 33 16 -35 4 19 -35 40 37 -34 57 0 0.43 -144 0 0 -35 1 31 7 7 51.6 34 267 -35 -35 16 2 -34 47 2 -35 23 23 -34 39 43 0.43 -143 0 0 -34 43 59 7 7 54.9 33 267 -36 -34 58 31 -34 29 29 -35 5 53 -34 22 9 0.43 -142 0 0 -34 26 12 7 7 58.0 32 266 -37 -34 40 45 -34 11 41 -34 48 8 -34 4 20 0.43 -141 0 0 -34 8 9 7 8 1.2 32 265 -37 -34 22 43 -33 53 37 -34 30 7 -33 46 16 0.43 -140 0 0 -33 49 51 7 8 4.2 31 264 -38 -34 4 27 -33 35 18 -34 11 50 -33 27 56 0.43 -139 0 0 -33 31 18 7 8 7.2 30 264 -39 -33 45 55 -33 16 43 -33 53 19 -33 9 21 0.43 -138 0 0 -33 12 31 7 8 10.2 29 263 -40 -33 27 8 -32 57 55 -33 34 33 -32 50 32 0.43 -137 0 0 -32 53 29 7 8 13.0 28 262 -40 -33 8 7 -32 38 52 -33 15 33 -32 31 28 0.44 -136 0 0 -32 34 12 7 8 15.8 27 262 -41 -32 48 52 -32 19 35 -32 56 18 -32 12 11 0.44 -135 0 0 -32 14 43 7 8 18.6 26 261 -42 -32 29 23 -32 0 4 -32 36 50 -31 52 39 0.44 -134 0 0 -31 54 59 7 8 21.2 25 261 -43 -32 9 41 -31 40 19 -32 17 8 -31 32 54 0.44 -133 0 0 -31 35 3 7 8 23.8 25 260 -43 -31 49 45 -31 20 22 -31 57 13 -31 12 57 0.44 -132 0 0 -31 14 53 7 8 26.3 24 259 -44 -31 29 37 -31 0 12 -31 37 5 -30 52 46 0.44 -131 0 0 -30 54 32 7 8 28.7 23 259 -45 -31 9 16 -30 39 49 -31 16 44 -30 32 23 0.44 -130 0 0 -30 33 58 7 8 31.1 22 258 -46 -30 48 43 -30 19 15 -30 56 12 -30 11 48 0.44 -129 0 0 -30 13 13 7 8 33.3 21 258 -46 -30 27 59 -29 58 29 -30 35 28 -29 51 2 0.44 -128 0 0 -29 52 16 7 8 35.5 20 257 -47 -30 7 3 -29 37 32 -30 14 32 -29 30 4 0.44 -127 0 0 -29 31 9 7 8 37.6 19 256 -48 -29 45 56 -29 16 24 -29 53 26 -29 8 56 0.44 -126 0 0 -29 9 51 7 8 39.6 18 256 -48 -29 24 39 -28 55 5 -29 32 9 -28 47 37 0.44 -125 0 0 -28 48 24 7 8 41.5 17 255 -49 -29 3 12 -28 33 37 -29 10 42 -28 26 9 0.45 -124 0 0 -28 26 46 7 8 43.3 16 255 -50 -28 41 35 -28 11 59 -28 49 6 -28 4 31 0.45 -123 0 0 -28 5 0 7 8 45.0 15 254 -50 -28 19 50 -27 50 13 -28 27 21 -27 42 44 0.45 -122 0 0 -27 43 5 7 8 46.7 14 254 -51 -27 57 55 -27 28 17 -28 5 26 -27 20 48 0.45 -121 0 0 -27 21 2 7 8 48.2 13 253 -52 -27 35 53 -27 6 14 -27 43 24 -26 58 45 0.45 -120 0 0 -26 58 52 7 8 49.6 12 253 -52 -27 13 42 -26 44 3 -27 21 14 -26 36 34 0.45 -119 0 0 -26 36 34 7 8 50.9 11 252 -53 -26 51 25 -26 21 45 -26 58 57 -26 14 16 0.46 -118 0 0 -26 14 10 7 8 52.2 10 252 -53 -26 29 1 -25 59 21 -26 36 33 -25 51 51 0.46 -117 0 0 -25 51 40 7 8 53.3 9 252 -54 -26 6 31 -25 36 50 -26 14 3 -25 29 21 0.46 -116 0 0 -25 29 4 7 8 54.3 8 251 -54 -25 43 55 -25 14 14 -25 51 28 -25 6 45 0.47 -115 0 0 -25 6 23 7 8 55.2 7 251 -55 -25 21 15 -24 51 33 -25 28 47 -24 44 4 0.47 -114 0 0 -24 43 38 7 8 56.0 6 250 -55 -24 58 29 -24 28 48 -25 6 2 -24 21 18 0.48 -113 0 0 -24 20 49 7 8 56.7 5 250 -56 -24 35 40 -24 5 59 -24 43 12 -23 58 29 0.49 -112 0 0 -23 57 56 7 8 57.3 5 249 -56 -24 12 48 -23 43 6 -24 20 20 -23 35 36 0.51 -111 0 0 -23 35 1 7 8 57.7 4 249 -57 -23 49 52 -23 20 11 -23 57 24 -23 12 41 0.53 -110 0 0 -23 12 3 7 8 58.1 3 249 -57 -23 26 54 -22 57 13 -23 34 26 -22 49 44 0.57 -109 0 0 -22 49 3 7 8 58.3 2 248 -57 -23 3 55 -22 34 14 -23 11 26 -22 26 45 0.67 -108 0 0 -22 26 3 7 8 58.4 1 248 -58 -22 40 54 -22 11 14 -22 48 25 -22 3 44 1.12 Uncertainty in time = +/- 3 secs Prediction of 2022 Oct 17.0 Data for the target star ------------------------ * name: TYC 6308-01141-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 13 29.3813 DE: -20 41 22.466 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 13 29.3813 DE: -20 41 22.466 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (7352) 1994CO asteroid class: approx. diameter [km]: 47 approx. diameter ["]: 0.013 distance from Earth [AU]: 5.02240 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 date of fit: 2022 Sep 23 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): 0.017", 0.003", 91.227° remarks: * orbital elements for (7352)1994CO : Mean anomaly = 36.9463179512 deg Arg. of pericenter = 128.5140409986 deg Long. of node = 130.3335280123 deg Inclination = 8.1835232880 deg Eccentricity = 0.0374128288 Semimajor axis = 5.1263634296 AU Perihelion dist = 4.9345716722 AU Mag: H = 10.06, G = 0.15 Epoch of elements : MJD 59871.29430556 TDT (2022 Oct 19.2943) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512022Sep23,2.55,2022,10,19,7.060006,-0.007574,-0.384798,10.302019,-0.190596,0.005920,0.000784,0.000000,0.000000 155.0652,-20.6514,70.35,-10.00,False TYC 6308-01141-1,19.22482815,-20.6895740,0.00,11.54,0.00,0.0,0,,19.24702564,-20.6514486,6.22,0.00,0,0,0 7352,1994CO,17.75,46.5,5.0224,0,0,1.285,-0.33,,3.4,0 0,36.9213,2022,10,19,128.5140,130.3335,8.1835,0.03741,5.12636,4.93457,10.06,5.0,0.15 1.253,0.0173,0.0032,91,0.0032,Known errors,-1.00,-1,-1,-1 20221019_1141-1,59868.96 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Oct 16, 23:05 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org