IOTA/IOTA-ES occultation update for (1596) Itzigsohn / UCAC4-494-043579 event on 2023 Dec 30, 10:50 UT Visible from USA Summary ------- On 2023 Dec 30 UT, the 47.3 km diameter asteroid (1596) Itzigsohn will occult a 12.5 mag star in the constellation Canis Minor for observers along a path across USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.26 mag to 14.58 mag (the magnitude of the asteroid) for at most 3.970 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: 2023 Dec 30, 10:42 - 2023 Dec 30, 10:58 * geocentric midpoint of event [JD]: 2460308.95176966 * magnitude of target star: 12.46 * magnitude drop [mag]: 2.26 * estimated maximum duration [s]: 3.970 * Moon: 89 % sunlit, 29° distance * Sun: 161° distance * rough path description: USA The occultation path -------------------- * approximate projected width [km]: 52 * 1 sigma uncertainty interval [path widths]: +/- 0.21 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.000", 108°) * approx speed of asteroid's shadow [km/s]: 11.9141 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-494-043579 by 1596 Itzigsohn on 2023 Dec 30 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 10 47 28 10 58 41.4 0 81 -15 11 1 40 10 33 16 11 7 33 10 27 25 .... 119 0 0 10 56 54 10 58 41.2 1 81 -16 11 11 7 10 42 42 11 17 0 10 36 51 -0.32 120 0 0 11 6 36 10 58 40.9 2 82 -17 11 20 50 10 52 23 11 26 43 10 46 32 -0.37 121 0 0 11 16 33 10 58 40.4 3 82 -18 11 30 48 11 2 20 11 36 41 10 56 29 -0.39 122 0 0 11 26 46 10 58 39.7 4 82 -19 11 41 1 11 12 32 11 46 54 11 6 40 -0.41 123 0 0 11 37 13 10 58 38.9 5 82 -20 11 51 29 11 22 59 11 57 22 11 17 7 -0.41 124 0 0 11 47 55 10 58 37.8 6 82 -21 12 2 12 11 33 41 12 8 5 11 27 48 -0.42 125 0 0 11 58 52 10 58 36.6 7 83 -22 12 13 9 11 44 37 12 19 3 11 38 44 -0.42 126 0 0 12 10 3 10 58 35.3 8 83 -23 12 24 21 11 55 47 12 30 15 11 49 55 -0.42 127 0 0 12 21 28 10 58 33.7 9 83 -24 12 35 46 12 7 12 12 41 41 12 1 19 -0.42 128 0 0 12 33 7 10 58 32.0 10 83 -25 12 47 26 12 18 50 12 53 20 12 12 57 -0.43 129 0 0 12 44 59 10 58 30.1 11 84 -26 12 59 19 12 30 42 13 5 14 12 24 48 -0.43 130 0 0 12 57 5 10 58 28.1 12 84 -27 13 11 25 12 42 47 13 17 20 12 36 53 -0.43 131 0 0 13 9 23 10 58 25.8 13 84 -28 13 23 44 12 55 5 13 29 40 12 49 11 -0.43 132 0 0 13 21 55 10 58 23.4 14 84 -29 13 36 16 13 7 35 13 42 12 13 1 41 -0.43 133 0 0 13 34 39 10 58 20.9 15 85 -30 13 49 0 13 20 18 13 54 56 13 14 24 -0.43 134 0 0 13 47 35 10 58 18.2 16 85 -31 14 1 57 13 33 14 14 7 53 13 27 19 -0.43 135 0 0 14 0 42 10 58 15.3 17 85 -32 14 15 6 13 46 21 14 21 2 13 40 26 -0.43 136 0 0 14 14 2 10 58 12.2 18 85 -33 14 28 26 13 59 40 14 34 23 13 53 45 -0.43 137 0 0 14 27 33 10 58 9.0 19 86 -34 14 41 57 14 13 10 14 47 54 14 7 15 -0.43 138 0 0 14 41 15 10 58 5.7 20 86 -35 14 55 40 14 26 52 15 1 37 14 20 56 -0.43 139 0 0 14 55 8 10 58 2.1 21 86 -36 15 9 33 14 40 44 15 15 31 14 34 48 -0.43 140 0 0 15 9 11 10 57 58.5 22 87 -37 15 23 37 14 54 46 15 29 35 14 48 50 -0.43 141 0 0 15 23 24 10 57 54.6 23 87 -38 15 37 51 15 8 59 15 43 49 15 3 2 -0.43 142 0 0 15 37 47 10 57 50.7 24 87 -39 15 52 15 15 23 21 15 58 13 15 17 25 -0.43 143 0 0 15 52 20 10 57 46.5 25 88 -40 16 6 48 15 37 54 16 12 47 15 31 57 -0.43 144 0 0 16 7 2 10 57 42.3 26 88 -41 16 21 30 15 52 35 16 27 29 15 46 38 -0.43 145 0 0 16 21 53 10 57 37.9 27 88 -42 16 36 22 16 7 25 16 42 21 16 1 28 -0.44 146 0 0 16 36 52 10 57 33.3 28 89 -43 16 51 22 16 22 24 16 57 21 16 16 26 -0.44 147 0 0 16 52 0 10 57 28.6 29 89 -43 17 6 31 16 37 32 17 12 30 16 31 34 -0.44 148 0 0 17 7 16 10 57 23.8 30 90 -44 17 21 47 16 52 47 17 27 47 16 46 49 -0.44 149 0 0 17 22 39 10 57 18.8 30 90 -45 17 37 11 17 8 9 17 43 11 17 2 11 -0.44 150 0 0 17 38 10 10 57 13.7 31 90 -46 17 52 42 17 23 39 17 58 42 17 17 41 -0.44 151 0 0 17 53 47 10 57 8.4 32 91 -47 18 8 20 17 39 16 18 14 20 17 33 18 -0.44 152 0 0 18 9 32 10 57 3.1 33 91 -48 18 24 5 17 55 0 18 30 5 17 49 1 -0.44 153 0 0 18 25 22 10 56 57.6 34 92 -49 18 39 56 18 10 50 18 45 57 18 4 51 -0.44 154 0 0 18 41 19 10 56 52.0 35 92 -50 18 55 53 18 26 46 19 1 54 18 20 47 -0.44 155 0 0 18 57 21 10 56 46.2 36 93 -51 19 11 55 18 42 48 19 17 56 18 36 48 -0.44 156 0 0 19 13 28 10 56 40.4 37 93 -52 19 28 3 18 58 55 19 34 4 18 52 55 -0.44 157 0 0 19 29 40 10 56 34.4 38 94 -53 19 44 16 19 15 6 19 50 17 19 9 6 -0.44 158 0 0 19 45 57 10 56 28.4 39 95 -54 20 0 33 19 31 23 20 6 35 19 25 23 -0.44 159 0 0 20 2 18 10 56 22.2 40 95 -55 20 16 54 19 47 44 20 22 56 19 41 43 -0.44 160 0 0 20 18 43 10 56 15.9 40 96 -56 20 33 20 20 4 8 20 39 22 19 58 7 -0.44 161 0 0 20 35 12 10 56 9.5 41 97 -57 20 49 49 20 20 36 20 55 51 20 14 35 -0.44 162 0 0 20 51 43 10 56 3.0 42 97 -58 21 6 21 20 37 8 21 12 23 20 31 7 -0.44 163 0 0 21 8 18 10 55 56.4 43 98 -59 21 22 56 20 53 42 21 28 58 20 47 41 -0.44 164 0 0 21 24 55 10 55 49.7 44 99 -60 21 39 33 21 10 19 21 45 36 21 4 17 -0.44 165 0 0 21 41 34 10 55 42.9 45 99 -61 21 56 13 21 26 58 22 2 16 21 20 56 -0.44 166 0 0 21 58 15 10 55 36.1 46 100 -62 22 12 54 21 43 38 22 18 57 21 37 37 -0.44 167 0 0 22 14 58 10 55 29.1 46 101 -63 22 29 37 22 0 21 22 35 40 21 54 19 -0.44 168 0 0 22 31 42 10 55 22.1 47 102 -63 22 46 21 22 17 4 22 52 24 22 11 2 -0.44 169 0 0 22 48 26 10 55 15.0 48 103 -64 23 3 6 22 33 48 23 9 9 22 27 47 -0.44 170 0 0 23 5 11 10 55 7.8 49 104 -65 23 19 51 22 50 33 23 25 54 22 44 31 -0.44 171 0 0 23 21 56 10 55 0.5 50 105 -66 23 36 36 23 7 18 23 42 40 23 1 16 -0.44 172 0 0 23 38 41 10 54 53.2 51 106 -67 23 53 21 23 24 3 23 59 25 23 18 1 -0.44 173 0 0 23 55 25 10 54 45.8 51 107 -68 24 10 6 23 40 47 24 16 9 23 34 45 -0.44 174 0 0 24 12 9 10 54 38.4 52 108 -69 24 26 49 23 57 30 24 32 53 23 51 28 -0.44 175 0 0 24 28 51 10 54 30.8 53 109 -70 24 43 31 24 14 12 24 49 35 24 8 10 -0.44 176 0 0 24 45 32 10 54 23.3 54 110 -71 25 0 12 24 30 53 25 6 16 24 24 51 -0.44 177 0 0 25 2 11 10 54 15.6 54 111 -72 25 16 51 24 47 32 25 22 55 24 41 30 -0.44 178 0 0 25 18 47 10 54 8.0 55 112 -72 25 33 28 25 4 9 25 39 32 24 58 6 -0.44 179 0 0 25 35 22 10 54 0.2 56 114 -73 25 50 2 25 20 43 25 56 6 25 14 41 -0.44 -180 0 0 25 51 53 10 53 52.5 56 115 -74 26 6 34 25 37 14 26 12 37 25 31 12 -0.44 -179 0 0 26 8 21 10 53 44.7 57 116 -75 26 23 2 25 53 43 26 29 6 25 47 40 -0.44 -178 0 0 26 24 46 10 53 36.8 58 118 -76 26 39 27 26 10 7 26 45 31 26 4 5 -0.44 -177 0 0 26 41 7 10 53 28.9 58 119 -77 26 55 48 26 26 29 27 1 52 26 20 27 -0.44 -176 0 0 26 57 24 10 53 21.0 59 121 -77 27 12 5 26 42 46 27 18 9 26 36 44 -0.44 -175 0 0 27 13 37 10 53 13.1 59 122 -78 27 28 17 26 58 59 27 34 21 26 52 57 -0.44 -174 0 0 27 29 46 10 53 5.1 60 124 -79 27 44 26 27 15 7 27 50 29 27 9 5 -0.45 -173 0 0 27 45 49 10 52 57.1 61 126 -79 28 0 29 27 31 11 28 6 32 27 25 9 -0.45 -172 0 0 28 1 47 10 52 49.1 61 127 -80 28 16 27 27 47 9 28 22 30 27 41 7 -0.45 -171 0 0 28 17 40 10 52 41.1 62 129 -81 28 32 19 28 3 2 28 38 23 27 57 0 -0.45 -170 0 0 28 33 27 10 52 33.0 62 131 -81 28 48 6 28 18 49 28 54 9 28 12 47 -0.45 -169 0 0 28 49 8 10 52 25.0 63 133 -82 29 3 47 28 34 30 29 9 50 28 28 29 -0.45 -168 0 0 29 4 42 10 52 16.9 63 135 -82 29 19 21 28 50 5 29 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0 37 53 50 10 42 26.5 4 278 -3 38 8 3 37 39 39 38 13 56 37 33 48 -0.50 - 54 0 0 37 45 38 10 42 26.0 3 278 -2 37 59 51 37 31 26 38 5 44 37 25 35 -0.52 - 53 0 0 37 37 11 10 42 25.5 2 279 -1 37 51 26 37 22 59 37 57 19 37 17 7 -0.55 - 52 0 0 37 28 31 10 42 25.3 2 280 -1 37 42 46 37 14 18 37 48 39 37 8 26 -0.60 - 51 0 0 37 19 37 10 42 25.1 1 280 0 37 33 53 37 5 23 37 39 46 36 59 31 -0.76 0 0 0 .. .. .... .. .. .. .. .. .. 37 24 45 .. .. .. 37 30 39 .. .. .. .... Uncertainty in time = +/- 2 secs Prediction of 2023 Nov 13.9 Data for the target star ------------------------ * name: UCAC4-494-043579 * constellation : Canis Minor * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 29 04.7717 DE: +08 43 12.627 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 29 04.7717 DE: +08 43 12.627 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1596) Itzigsohn asteroid class: approx. diameter [km]: 47 approx. diameter ["]: 0.038 distance from Earth [AU]: 1.71840 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#60 date of fit: 2023 Oct 09 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): 0.015", 0.000", 108.104° remarks: * orbital elements for (1596)Itzigsohn : Mean anomaly = 47.3828532006 deg Arg. of pericenter = 159.5384912577 deg Long. of node = 248.9550335490 deg Inclination = 13.2899738853 deg Eccentricity = 0.1293324431 Semimajor axis = 2.8893675105 AU Perihelion dist = 2.5156785514 AU Mag: H = 10.75, G = 0.15 Epoch of elements : MJD 60308.45187500 TDT (2023 Dec 30.4519) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#602023Oct09,3.97,2023,12,30,10.842472,-0.094304,0.397684,-6.543264,-1.551221,-0.001273,0.001497,0.000001,0.000000 -148.6618,8.6709,17.95,-23.17,False UCAC4-494-043579,7.48465880,8.7201743,0.00,12.46,0.00,0.0,0,,7.50670110,8.6709149,2.27,0.00,0,0,0 1596,Itzigsohn,14.58,47.300,1.7184,0,0,-2.258,-7.93,,2.4,0 0,47.2922,2023,12,30,159.5385,248.9550,13.2900,0.12933,2.88937,2.51568,10.76,5.0,0.15 1.206,0.0150,0.0004,108,0.0150,Known errors,-1.00,0,-1,-1 20231230_043579,60261.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Nov 13, 21:02 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org