IOTA/IOTA-ES occultation update for (1102) Pepita / UCAC4 371-080853 event on 2023 Mar 21, 05:46 UT Visible from Europe Summary ------- On 2023 Mar 21 UT, the 39.3 km diameter asteroid (1102) Pepita will occult a 11.5 mag star in the constellation Ophiuchus for observers along a path across Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.56 mag to 14.99 mag (the magnitude of the asteroid) for at most 3.210 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: 93 * date and approx. time of event: 2023 Mar 21, 05:40 - 2023 Mar 21, 05:51 * geocentric midpoint of event [JD]: 2460024.74052766 * magnitude of target star: 11.47 * magnitude drop [mag]: 3.56 * estimated maximum duration [s]: 3.210 * Moon: 0 % sunlit, 98° distance * Sun: 103° distance * rough path description: Europe The occultation path -------------------- * approximate projected width [km]: 65 * 1 sigma uncertainty interval [path widths]: +/- 0.47 * 1 sigma uncertainty interval [seconds]: +/- 3.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.002", 82°) * approx speed of asteroid's shadow [km/s]: 12.2591 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 371-080853 by 1102 Pepita on 2023 Mar 21 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 - 90 0 0 21 2 38 5 41 5.3 1 107 -68 20 44 31 21 20 53 20 27 40 21 38 5 .... - 89 0 0 20 46 15 5 41 5.6 2 108 -68 20 28 12 21 4 25 20 11 26 21 21 33 -0.80 - 88 0 0 20 30 48 5 41 6.1 3 108 -69 20 12 49 20 48 53 19 56 7 21 5 57 -0.99 - 87 0 0 20 16 17 5 41 6.9 4 108 -69 19 58 23 20 34 19 19 41 43 20 51 18 -1.08 - 86 0 0 20 2 42 5 41 7.9 4 109 -70 19 44 52 20 20 41 19 28 16 20 37 37 -1.13 - 85 0 0 19 50 4 5 41 9.2 5 109 -70 19 32 16 20 7 59 19 15 44 20 24 52 -1.16 - 84 0 0 19 38 22 5 41 10.6 6 110 -70 19 20 37 19 56 13 19 4 7 20 13 4 -1.18 - 83 0 0 19 27 36 5 41 12.4 7 110 -70 19 9 54 19 45 25 18 53 27 20 2 12 -1.20 - 82 0 0 19 17 46 5 41 14.3 8 110 -71 19 0 7 19 35 33 18 43 42 19 52 18 -1.21 - 81 0 0 19 8 53 5 41 16.5 9 111 -71 18 51 16 19 26 38 18 34 53 19 43 21 -1.22 - 80 0 0 19 0 57 5 41 19.0 10 111 -71 18 43 22 19 18 39 18 27 0 19 35 20 -1.23 - 79 0 0 18 53 57 5 41 21.6 11 111 -71 18 36 23 19 11 38 18 20 3 19 28 17 -1.24 - 78 0 0 18 47 54 5 41 24.5 12 112 -70 18 30 21 19 5 33 18 14 2 19 22 11 -1.25 - 77 0 0 18 42 47 5 41 27.6 13 112 -70 18 25 16 19 0 25 18 8 58 19 17 2 -1.25 - 76 0 0 18 38 37 5 41 31.0 14 112 -70 18 21 7 18 56 15 18 4 49 19 12 51 -1.26 - 75 0 0 18 35 24 5 41 34.5 15 113 -70 18 17 54 18 53 1 18 1 38 19 9 37 -1.26 - 74 0 0 18 33 8 5 41 38.3 16 113 -69 18 15 39 18 50 45 17 59 22 19 7 21 -1.27 - 73 0 0 18 31 50 5 41 42.3 17 114 -69 18 14 20 18 49 26 17 58 4 19 6 2 -1.27 - 72 0 0 18 31 28 5 41 46.6 17 114 -68 18 13 58 18 49 5 17 57 41 19 5 41 -1.27 - 71 0 0 18 32 4 5 41 51.0 18 115 -68 18 14 34 18 49 42 17 58 17 19 6 19 -1.28 - 70 0 0 18 33 38 5 41 55.7 19 115 -67 18 16 7 18 51 17 17 59 49 19 7 54 -1.28 - 69 0 0 18 36 10 5 42 0.5 20 116 -66 18 18 37 18 53 50 18 2 18 19 10 29 -1.28 - 68 0 0 18 39 40 5 42 5.6 21 116 -66 18 22 5 18 57 21 18 5 45 19 14 1 -1.28 - 67 0 0 18 44 8 5 42 10.9 22 117 -65 18 26 31 19 1 51 18 10 9 19 18 33 -1.29 - 66 0 0 18 49 34 5 42 16.4 23 117 -64 18 31 55 19 7 19 18 15 31 19 24 3 -1.29 - 65 0 0 18 55 58 5 42 22.1 23 118 -64 18 38 18 19 13 46 18 21 51 19 30 32 -1.29 - 64 0 0 19 3 21 5 42 27.9 24 118 -63 18 45 38 19 21 12 18 29 10 19 38 0 -1.29 - 63 0 0 19 11 44 5 42 34.0 25 119 -62 18 53 58 19 29 37 18 37 26 19 46 29 -1.29 - 62 0 0 19 21 5 5 42 40.3 26 119 -61 19 3 16 19 39 2 18 46 42 19 55 56 -1.30 - 61 0 0 19 31 26 5 42 46.8 27 120 -60 19 13 34 19 49 26 18 56 56 20 6 24 -1.30 - 60 0 0 19 42 47 5 42 53.5 27 121 -59 19 24 51 20 0 51 19 8 10 20 17 53 -1.30 - 59 0 0 19 55 8 5 43 0.3 28 122 -58 19 37 7 20 13 16 19 20 22 20 30 22 -1.30 - 58 0 0 20 8 29 5 43 7.3 29 122 -58 19 50 24 20 26 42 19 33 35 20 43 53 -1.30 - 57 0 0 20 22 51 5 43 14.6 29 123 -57 20 4 41 20 41 9 19 47 48 20 58 24 -1.30 - 56 0 0 20 38 14 5 43 22.0 30 124 -56 20 19 59 20 56 37 20 3 0 21 13 57 -1.30 - 55 0 0 20 54 38 5 43 29.5 31 125 -55 20 36 17 21 13 6 20 19 14 21 30 32 -1.30 - 54 0 0 21 12 3 5 43 37.3 31 125 -54 20 53 36 21 30 38 20 36 28 21 48 9 -1.31 - 53 0 0 21 30 30 5 43 45.2 32 126 -53 21 11 57 21 49 11 20 54 43 22 6 49 -1.31 - 52 0 0 21 49 59 5 43 53.3 32 127 -52 21 31 20 22 8 47 21 13 59 22 26 31 -1.31 - 51 0 0 22 10 30 5 44 1.5 33 128 -51 21 51 44 22 29 25 21 34 17 22 47 16 -1.31 - 50 0 0 22 32 4 5 44 9.9 34 129 -50 22 13 11 22 51 7 21 55 37 23 9 5 -1.31 - 49 0 0 22 54 41 5 44 18.4 34 130 -49 22 35 40 23 13 51 22 17 59 23 31 57 -1.31 - 48 0 0 23 18 21 5 44 27.1 35 131 -48 22 59 11 23 37 40 22 41 23 23 55 53 -1.31 - 47 0 0 23 43 4 5 44 35.9 35 132 -47 23 23 46 24 2 31 23 5 50 24 20 53 -1.31 - 46 0 0 24 8 51 5 44 44.9 35 133 -46 23 49 24 24 28 27 23 31 20 24 46 58 -1.31 - 45 0 0 24 35 42 5 44 54.0 36 134 -45 24 16 5 24 55 28 23 57 52 25 14 8 -1.31 - 44 0 0 25 3 36 5 45 3.2 36 136 -44 24 43 50 25 23 33 24 25 28 25 42 22 -1.31 - 43 0 0 25 32 35 5 45 12.5 36 137 -42 25 12 39 25 52 42 24 54 8 26 11 42 -1.31 - 42 0 0 26 2 39 5 45 21.9 37 138 -41 25 42 31 26 22 57 25 23 50 26 42 7 -1.31 - 41 0 0 26 33 47 5 45 31.5 37 139 -40 26 13 28 26 54 16 25 54 37 27 13 37 -1.31 - 40 0 0 27 5 59 5 45 41.1 37 140 -39 26 45 29 27 26 41 26 26 27 27 46 14 -1.31 - 39 0 0 27 39 16 5 45 50.8 37 142 -38 27 18 34 28 0 11 26 59 21 28 19 56 -1.31 - 38 0 0 28 13 38 5 46 0.6 37 143 -37 27 52 43 28 34 46 27 33 18 28 54 43 -1.31 - 37 0 0 28 49 5 5 46 10.5 37 144 -36 28 27 56 29 10 26 28 8 19 29 30 37 -1.31 - 36 0 0 29 25 36 5 46 20.4 37 146 -35 29 4 13 29 47 11 28 44 24 30 7 36 -1.31 - 35 0 0 30 3 12 5 46 30.4 37 147 -34 29 41 35 30 25 2 29 21 32 30 45 41 -1.31 - 34 0 0 30 41 52 5 46 40.4 37 148 -33 30 20 0 31 3 58 29 59 43 31 24 52 -1.31 - 33 0 0 31 21 36 5 46 50.5 37 150 -32 30 59 28 31 43 58 30 38 57 32 5 7 -1.31 - 32 0 0 32 2 24 5 47 0.6 37 151 -31 31 39 59 32 25 2 31 19 14 32 46 28 -1.31 - 31 0 0 32 44 15 5 47 10.6 37 153 -30 32 21 34 33 7 11 32 0 33 33 28 54 -1.31 - 30 0 0 33 27 9 5 47 20.7 37 154 -29 33 4 10 33 50 23 32 42 53 34 12 24 -1.31 - 29 0 0 34 11 5 5 47 30.8 36 155 -27 33 47 48 34 34 39 33 26 14 34 56 57 -1.30 - 28 0 0 34 56 3 5 47 40.8 36 157 -26 34 32 27 35 19 56 34 10 36 35 42 34 -1.30 - 27 0 0 35 42 2 5 47 50.8 36 158 -25 35 18 6 36 6 16 34 55 57 36 29 13 -1.30 - 26 0 0 36 29 1 5 48 0.8 35 160 -24 36 4 44 36 53 36 35 42 17 37 16 54 -1.30 - 25 0 0 37 16 58 5 48 10.6 35 161 -23 36 52 21 37 41 56 36 29 34 38 5 36 -1.30 - 24 0 0 38 5 54 5 48 20.4 34 162 -22 37 40 54 38 31 15 37 17 48 38 55 17 -1.30 - 23 0 0 38 55 47 5 48 30.1 34 164 -21 38 30 24 39 21 31 38 6 57 39 45 57 -1.30 - 22 0 0 39 46 35 5 48 39.7 33 165 -20 39 20 48 40 12 44 38 56 59 40 37 34 -1.30 - 21 0 0 40 38 17 5 48 49.2 32 166 -19 40 12 5 41 4 51 39 47 54 41 30 7 -1.30 - 20 0 0 41 30 50 5 48 58.5 32 167 -18 41 4 13 41 57 52 40 39 40 42 23 34 -1.30 - 19 0 0 42 24 15 5 49 7.6 31 169 -17 41 57 11 42 51 44 41 32 14 43 17 53 -1.30 - 18 0 0 43 18 27 5 49 16.6 30 170 -16 42 50 56 43 46 26 42 25 34 44 13 3 -1.30 - 17 0 0 44 13 26 5 49 25.4 29 171 -15 43 45 27 44 41 54 43 19 39 45 9 1 -1.30 - 16 0 0 45 9 9 5 49 34.0 29 172 -14 44 40 40 45 38 8 44 14 26 46 5 45 -1.30 - 15 0 0 46 5 33 5 49 42.4 28 174 -13 45 36 34 46 35 4 45 9 53 47 3 13 -1.30 - 14 0 0 47 2 36 5 49 50.6 27 175 -12 46 33 5 47 32 40 46 5 57 48 1 22 -1.30 - 13 0 0 48 0 15 5 49 58.5 26 176 -11 47 30 12 48 30 53 47 2 34 49 0 9 -1.30 - 12 0 0 48 58 25 5 50 6.1 25 177 -11 48 27 49 49 29 40 47 59 42 49 59 31 -1.30 - 11 0 0 49 57 6 5 50 13.5 24 178 -10 49 25 55 50 28 57 48 57 18 50 59 25 -1.30 - 10 0 0 50 56 12 5 50 20.6 23 179 -9 50 24 26 51 28 41 49 55 18 51 59 47 -1.30 - 9 0 0 51 55 40 5 50 27.4 22 180 -8 51 23 18 52 28 48 50 53 38 53 0 33 -1.31 - 8 0 0 52 55 27 5 50 33.9 21 181 -7 52 22 27 53 29 14 51 52 14 54 1 39 -1.31 - 7 0 0 53 55 27 5 50 40.1 20 182 -6 53 21 49 54 29 55 52 51 2 55 3 2 -1.31 - 6 0 0 54 55 36 5 50 46.0 19 183 -6 54 21 19 55 30 47 53 49 59 56 4 36 -1.31 - 5 0 0 55 55 50 5 50 51.5 18 184 -5 55 20 53 56 31 44 54 48 59 57 6 17 -1.31 - 4 0 0 56 56 3 5 50 56.7 17 185 -4 56 20 27 57 32 41 55 47 57 58 7 59 -1.31 - 3 0 0 57 56 12 5 51 1.5 16 186 -4 57 19 54 58 33 34 56 46 49 59 9 38 -1.32 - 2 0 0 58 56 9 5 51 6.0 15 187 -3 58 19 10 59 34 17 57 45 30 60 11 7 -1.32 - 1 0 0 59 55 50 5 51 10.2 14 188 -2 59 18 10 60 34 43 58 43 53 61 12 20 -1.32 0 0 0 60 55 9 5 51 14.0 13 189 -2 60 16 47 61 34 48 59 41 55 62 13 13 -1.32 1 0 0 61 53 59 5 51 17.5 12 190 -1 61 14 56 62 34 24 60 39 29 63 13 37 -1.33 2 0 0 62 52 16 5 51 20.6 11 191 -1 62 12 32 63 33 26 61 36 30 64 13 26 -1.33 3 0 0 63 49 52 5 51 23.4 10 192 0 63 9 28 64 31 47 62 32 52 65 12 34 -1.34 4 0 0 64 46 42 5 51 25.9 9 193 0 64 5 39 65 29 20 63 28 30 66 10 54 -1.34 5 0 0 65 42 38 5 51 28.0 8 194 1 65 0 58 66 26 0 64 23 18 67 8 18 -1.35 6 0 0 66 37 36 5 51 29.9 7 195 1 65 55 20 67 21 38 65 17 10 68 4 40 -1.36 7 0 0 67 31 29 5 51 31.5 6 196 1 66 48 39 68 16 9 66 10 1 68 59 52 -1.37 8 0 0 68 24 10 5 51 32.7 5 197 2 67 40 49 69 9 26 67 1 46 69 53 47 -1.38 9 0 0 69 15 35 5 51 33.8 4 198 2 68 31 46 70 1 23 67 52 19 70 46 19 -1.40 10 0 0 70 5 38 5 51 34.5 3 199 2 69 21 24 70 51 54 68 41 37 71 37 21 -1.42 11 0 0 70 54 14 5 51 35.1 2 200 2 70 9 39 71 40 55 69 29 35 72 26 49 -1.47 12 0 0 71 41 19 5 51 35.4 1 201 3 70 56 27 72 28 20 70 16 8 .. .. .. -1.58 13 0 0 72 26 49 5 51 35.6 0 202 3 71 41 44 .. .. .. 71 1 15 .. .. .. -2.15 14 0 0 .. .. .... .. .. .. .. .. .. 72 25 27 .. .. .. 71 44 51 .. .. .. .... 15 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 72 26 56 .. .. .. .... Uncertainty in time = +/- 4 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: UCAC4 371-080853 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 05 48.0564 DE: -15 57 41.777 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 05 48.0564 DE: -15 57 41.777 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1102) Pepita asteroid class: approx. diameter [km]: 39 approx. diameter ["]: 0.020 distance from Earth [AU]: 2.67990 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#74 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): 0.024", 0.002", 82.283° remarks: * orbital elements for (1102)Pepita : Mean anomaly = 277.5089505705 deg Arg. of pericenter = 117.7544455335 deg Long. of node = 216.5474024653 deg Inclination = 15.8292050628 deg Eccentricity = 0.1108227960 Semimajor axis = 3.0694105208 AU Perihelion dist = 2.7292498647 AU Mag: H = 9.44, G = 0.15 Epoch of elements : MJD 60024.24055556 TDT (2023 Mar 21.2406) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#742023Feb07,3.21,2023,3,21,5.772664,-0.403332,0.683301,5.958375,3.517851,-0.005739,0.000370,0.000000,0.000000 -8.3001,-15.9942,95.24,0.14,False UCAC4 371-080853,17.09668231,-15.9616048,0.00,11.47,0.00,0.0,0,,17.11879828,-15.9942431,3.56,0.00,0,0,0 1102,Pepita,14.99,39.3,2.6799,0,0,1.356,11.55,,2.0,0 0,277.4649,2023,3,21,117.7544,216.5474,15.8292,0.11082,3.06941,2.72925,9.47,5.0,0.15 1.468,0.0240,0.0018,82,0.0095,Known errors,-1.00,-1,-1,-1 20230321_080853,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:51 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org