IOTA/IOTA-ES occultation update for (490) Veritas / TYC 0767-00135-1 event on 2022 Dec 01, 20:57 UT Visible from Africa Summary ------- On 2022 Dec 01 UT, the 112.4 km diameter asteroid (490) Veritas will occult a 9.4 mag star in the constellation Canis Minor for observers along a path across Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.30 mag to 13.66 mag (the magnitude of the asteroid) for at most 14.830 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 Dec 01, 20:44 - 2022 Dec 01, 21:11 * geocentric midpoint of event [JD]: 2459915.37347775 * magnitude of target star: 9.38 * magnitude drop [mag]: 4.30 * estimated maximum duration [s]: 14.830 * Moon: 63 % sunlit, 113° distance * Sun: 138° distance * rough path description: Africa The occultation path -------------------- * approximate projected width [km]: 122 * 1 sigma uncertainty interval [path widths]: +/- 0.31 * 1 sigma uncertainty interval [seconds]: +/- 6.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.028, +/- 0.019) * 1 sigma uncertainty ellipse (major, minor, PA): (0.028", 0.019", 94°) * approx speed of asteroid's shadow [km/s]: 7.5811 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0767-00135-1 by 490 Veritas on 2022 Dec 1 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 - 1 0 0 -36 43 53 21 10 41.9 0 78 -20 -36 10 0 -37 17 55 -35 49 22 -37 38 47 .... 0 0 0 -36 33 19 21 10 41.8 1 77 -21 -35 59 23 -37 7 23 -35 38 44 -37 28 16 0.19 1 0 0 -36 22 30 21 10 41.4 2 77 -21 -35 48 33 -36 56 37 -35 27 52 -37 17 31 0.30 2 0 0 -36 11 28 21 10 40.9 3 76 -22 -35 37 28 -36 45 37 -35 16 47 -37 6 32 0.34 3 0 0 -36 0 12 21 10 40.2 4 75 -23 -35 26 11 -36 34 23 -35 5 28 -36 55 20 0.36 4 0 0 -35 48 43 21 10 39.3 4 75 -23 -35 14 39 -36 22 56 -34 53 56 -36 43 54 0.38 5 0 0 -35 37 0 21 10 38.2 5 74 -24 -35 2 55 -36 11 15 -34 42 10 -36 32 14 0.38 6 0 0 -35 25 5 21 10 36.9 6 74 -25 -34 50 57 -35 59 21 -34 30 11 -36 20 22 0.39 7 0 0 -35 12 56 21 10 35.4 7 73 -25 -34 38 46 -35 47 14 -34 17 58 -36 8 16 0.40 8 0 0 -35 0 34 21 10 33.7 8 72 -26 -34 26 22 -35 34 55 -34 5 33 -35 55 58 0.40 9 0 0 -34 47 59 21 10 31.8 9 72 -26 -34 13 46 -35 22 22 -33 52 56 -35 43 26 0.41 10 0 0 -34 35 12 21 10 29.7 9 71 -27 -34 0 56 -35 9 37 -33 40 5 -35 30 42 0.41 11 0 0 -34 22 12 21 10 27.4 10 71 -28 -33 47 55 -34 56 39 -33 27 3 -35 17 46 0.41 12 0 0 -34 9 0 21 10 24.9 11 70 -28 -33 34 41 -34 43 29 -33 13 48 -35 4 37 0.41 13 0 0 -33 55 36 21 10 22.2 12 70 -29 -33 21 15 -34 30 7 -33 0 21 -34 51 16 0.41 14 0 0 -33 42 1 21 10 19.3 13 69 -29 -33 7 38 -34 16 33 -32 46 42 -34 37 43 0.42 15 0 0 -33 28 13 21 10 16.2 14 68 -30 -32 53 48 -34 2 47 -32 32 52 -34 23 58 0.42 16 0 0 -33 14 14 21 10 12.9 15 68 -31 -32 39 47 -33 48 50 -32 18 50 -34 10 2 0.42 17 0 0 -33 0 4 21 10 9.3 15 67 -31 -32 25 35 -33 34 41 -32 4 36 -33 55 55 0.42 18 0 0 -32 45 42 21 10 5.6 16 67 -32 -32 11 12 -33 20 21 -31 50 12 -33 41 36 0.42 19 0 0 -32 31 10 21 10 1.7 17 66 -32 -31 56 38 -33 5 51 -31 35 37 -33 27 6 0.42 20 0 0 -32 16 27 21 9 57.5 18 66 -33 -31 41 54 -32 51 9 -31 20 52 -33 12 26 0.42 21 0 0 -32 1 33 21 9 53.2 19 65 -33 -31 26 59 -32 36 17 -31 5 56 -32 57 35 0.42 22 0 0 -31 46 30 21 9 48.6 20 65 -34 -31 11 54 -32 21 15 -30 50 50 -32 42 34 0.42 23 0 0 -31 31 16 21 9 43.8 21 64 -34 -30 56 39 -32 6 3 -30 35 34 -32 27 23 0.43 24 0 0 -31 15 53 21 9 38.9 21 63 -35 -30 41 14 -31 50 42 -30 20 9 -32 12 2 0.43 25 0 0 -31 0 20 21 9 33.7 22 63 -35 -30 25 40 -31 35 10 -30 4 34 -31 56 31 0.43 26 0 0 -30 44 39 21 9 28.3 23 62 -36 -30 9 57 -31 19 30 -29 48 50 -31 40 52 0.43 27 0 0 -30 28 48 21 9 22.7 24 62 -36 -29 54 5 -31 3 40 -29 32 58 -31 25 3 0.43 28 0 0 -30 12 48 21 9 16.8 25 61 -37 -29 38 5 -30 47 42 -29 16 56 -31 9 5 0.43 29 0 0 -29 56 41 21 9 10.8 26 61 -37 -29 21 56 -30 31 35 -29 0 47 -30 53 0 0.43 30 0 0 -29 40 25 21 9 4.6 27 60 -38 -29 5 39 -30 15 21 -28 44 29 -30 36 45 0.43 31 0 0 -29 24 1 21 8 58.1 27 59 -38 -28 49 14 -29 58 58 -28 28 4 -30 20 23 0.43 32 0 0 -29 7 30 21 8 51.5 28 59 -39 -28 32 42 -29 42 28 -28 11 32 -30 3 54 0.43 33 0 0 -28 50 52 21 8 44.6 29 58 -39 -28 16 3 -29 25 50 -27 54 52 -29 47 17 0.43 34 0 0 -28 34 7 21 8 37.6 30 58 -39 -27 59 17 -29 9 6 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25 24 - 7 12 34 0.44 158 0 0 - 6 23 12 20 45 39.3 18 282 23 - 5 50 0 - 6 56 34 - 5 29 46 - 7 17 0 0.44 159 0 0 - 6 27 56 20 45 34.5 17 282 24 - 5 54 42 - 7 1 18 - 5 34 28 - 7 21 45 0.44 160 0 0 - 6 32 58 20 45 30.1 16 282 25 - 5 59 43 - 7 6 22 - 5 39 29 - 7 26 49 0.44 161 0 0 - 6 38 20 20 45 25.8 15 282 26 - 6 5 4 - 7 11 45 - 5 44 48 - 7 32 13 0.44 162 0 0 - 6 44 1 20 45 21.9 14 282 27 - 6 10 43 - 7 17 27 - 5 50 27 - 7 37 56 0.44 163 0 0 - 6 50 1 20 45 18.2 13 282 28 - 6 16 42 - 7 23 28 - 5 56 25 - 7 43 58 0.44 164 0 0 - 6 56 20 20 45 14.7 12 282 29 - 6 23 0 - 7 29 49 - 6 2 42 - 7 50 20 0.44 165 0 0 - 7 2 58 20 45 11.5 11 281 29 - 6 29 37 - 7 36 28 - 6 9 18 - 7 57 0 0.45 166 0 0 - 7 9 56 20 45 8.5 10 281 30 - 6 36 32 - 7 43 27 - 6 16 13 - 8 4 0 0.45 167 0 0 - 7 17 12 20 45 5.9 9 281 31 - 6 43 47 - 7 50 45 - 6 23 27 - 8 11 19 0.45 168 0 0 - 7 24 47 20 45 3.4 8 281 32 - 6 51 21 - 7 58 22 - 6 31 0 - 8 18 57 0.45 169 0 0 - 7 32 41 20 45 1.3 7 281 33 - 6 59 14 - 8 6 18 - 6 38 51 - 8 26 54 0.45 170 0 0 - 7 40 55 20 44 59.4 6 281 34 - 7 7 25 - 8 14 33 - 6 47 2 - 8 35 10 0.46 171 0 0 - 7 49 26 20 44 57.8 5 281 35 - 7 15 55 - 8 23 6 - 6 55 31 - 8 43 44 0.46 172 0 0 - 7 58 17 20 44 56.5 4 280 36 - 7 24 44 - 8 31 59 - 7 4 18 - 8 52 38 0.47 173 0 0 - 8 7 26 20 44 55.4 3 280 37 - 7 33 51 - 8 41 10 - 7 13 25 - 9 1 50 0.48 174 0 0 - 8 16 54 20 44 54.6 2 280 38 - 7 43 17 - 8 50 39 - 7 22 50 - 9 11 21 0.50 175 0 0 - 8 26 40 20 44 54.1 1 280 39 - 7 53 1 - 9 0 28 - 7 32 33 - 9 21 10 0.55 176 0 0 - 8 36 45 20 44 53.8 0 280 40 - 8 3 4 - 9 10 34 - 7 42 34 - 9 31 18 0.87 Uncertainty in time = +/- 6 secs Prediction of 2022 Dec 1.1 Data for the target star ------------------------ * name: TYC 0767-00135-1 * constellation : Canis Minor * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 17 43.2040 DE: +09 44 43.352 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 17 43.2040 DE: +09 44 43.352 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 9.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (490) Veritas asteroid class: approx. diameter [km]: 112 approx. diameter ["]: 0.067 distance from Earth [AU]: 2.32320 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2022 Nov 22 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): 0.028", 0.019", 93.817° remarks: * orbital elements for (490)Veritas : Mean anomaly = 76.0157396231 deg Arg. of pericenter = 193.3453247913 deg Long. of node = 178.0373682190 deg Inclination = 9.2940613907 deg Eccentricity = 0.0895241523 Semimajor axis = 3.1718412156 AU Perihelion dist = 2.8878848195 AU Mag: H = 8.61, G = 0.15 Epoch of elements : MJD 59914.87333333 TDT (2022 Dec 01.8733) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562022Nov22,14.83,2022,12,1,20.963466,0.095976,-0.378344,-4.147711,-1.051710,-0.003677,0.001507,0.000001,0.000000 84.5995,9.7049,-137.16,-21.90,False TYC 0767-00135-1,7.29533442,9.7453756,0.00,9.38,0.00,0.0,0,,7.31637475,9.7049342,4.30,0.00,0,0,0 490,Veritas,13.66,112.4,2.3232,0,0,-1.062,-3.98,,5.8,0 0,75.8634,2022,12,1,193.3453,178.0374,9.2941,0.08952,3.17184,2.88788,8.62,5.0,0.15 1.305,0.0283,0.0193,94,0.0204,Known errors,-1.00,-1,-1,-1 20221201_0135-1,59914.08 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 01, 01:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org