IOTA/IOTA-ES occultation update for (776) Berbericia / UCAC4-591-022436 event on 2023 Dec 22, 21:14 UT Visible from Africa Summary ------- On 2023 Dec 22 UT, the 155.3 km diameter asteroid (776) Berbericia will occult a 12.3 mag star in the constellation Taurus 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 0.36 mag to 11.23 mag (the magnitude of the asteroid) for at most 11.580 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 22, 21:10 - 2023 Dec 22, 21:19 * geocentric midpoint of event [JD]: 2460301.38541817 * magnitude of target star: 12.26 * magnitude drop [mag]: 0.36 * estimated maximum duration [s]: 11.580 * Moon: 82 % sunlit, 48° distance * Sun: 175° distance * rough path description: Africa Additional comments ------------------- low mag drop The occultation path -------------------- * approximate projected width [km]: 298 * 1 sigma uncertainty interval [path widths]: +/- 0.10 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.001", 70°) * approx speed of asteroid's shadow [km/s]: 13.4089 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-591-022436 by 776 Berbericia on 2023 Dec 22 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 0 0 0 .. .. .... .. .. .. .. .. .. -28 56 55 .. .. .. -28 37 23 .. .. .. .... - 35 0 0 -29 59 10 21 19 7.3 0 57 -1 -28 24 2 .. .. .. -28 4 45 .. .. .. .... - 34 0 0 -29 26 21 21 19 7.1 1 56 -2 -27 52 27 -31 5 32 -27 33 25 -31 27 2 0.84 - 33 0 0 -28 54 55 21 19 6.6 2 56 -3 -27 22 11 -30 32 44 -27 3 22 -30 53 54 1.20 - 32 0 0 -28 24 49 21 19 5.8 3 55 -4 -26 53 11 -30 1 21 -26 34 35 -30 22 14 1.34 - 31 0 0 -27 56 4 21 19 4.7 4 55 -5 -26 25 27 -29 31 24 -26 7 3 -29 52 0 1.42 - 30 0 0 -27 28 36 21 19 3.4 5 54 -6 -25 58 58 -29 2 49 -25 40 44 -29 23 9 1.47 - 29 0 0 -27 2 26 21 19 1.8 6 54 -7 -25 33 41 -28 35 35 -25 15 39 -28 55 41 1.50 - 28 0 0 -26 37 31 21 19 0.0 7 54 -8 -25 9 38 -28 9 42 -24 51 45 -28 29 34 1.53 - 27 0 0 -26 13 51 21 18 57.9 8 53 -9 -24 46 46 -27 45 7 -24 29 2 -28 4 47 1.54 - 26 0 0 -25 51 26 21 18 55.6 9 53 -9 -24 25 5 -27 21 50 -24 7 30 -27 41 18 1.56 - 25 0 0 -25 30 13 21 18 53.0 10 52 -10 -24 4 34 -26 59 49 -23 47 7 -27 19 6 1.57 - 24 0 0 -25 10 12 21 18 50.2 11 52 -11 -23 45 13 -26 39 3 -23 27 53 -26 58 10 1.58 - 23 0 0 -24 51 23 21 18 47.2 12 51 -12 -23 27 0 -26 19 32 -23 9 47 -26 38 30 1.58 - 22 0 0 -24 33 44 21 18 44.0 13 51 -13 -23 9 54 -26 1 15 -22 52 49 -26 20 3 1.59 - 21 0 0 -24 17 14 21 18 40.6 14 50 -14 -22 53 57 -25 44 10 -22 36 57 -26 2 50 1.59 - 20 0 0 -24 1 54 21 18 37.0 15 50 -15 -22 39 5 -25 28 16 -22 22 11 -25 46 49 1.60 - 19 0 0 -23 47 42 21 18 33.1 15 49 -16 -22 25 20 -25 13 34 -22 8 31 -25 32 0 1.60 - 18 0 0 -23 34 38 21 18 29.1 16 49 -17 -22 12 41 -25 0 2 -21 55 57 -25 18 22 1.60 - 17 0 0 -23 22 41 21 18 24.9 17 48 -18 -22 1 6 -24 47 40 -21 44 26 -25 5 54 1.61 - 16 0 0 -23 11 51 21 18 20.6 18 48 -18 -21 50 36 -24 36 26 -21 34 0 -24 54 35 1.61 - 15 0 0 -23 2 6 21 18 16.0 19 47 -19 -21 41 10 -24 26 22 -21 24 38 -24 44 26 1.61 - 14 0 0 -22 53 28 21 18 11.3 19 47 -20 -21 32 48 -24 17 25 -21 16 20 -24 35 25 1.61 - 13 0 0 -22 45 55 21 18 6.4 20 46 -21 -21 25 30 -24 9 36 -21 9 4 -24 27 32 1.61 - 12 0 0 -22 39 27 21 18 1.3 21 45 -22 -21 19 14 -24 2 54 -21 2 51 -24 20 47 1.62 - 11 0 0 -22 34 4 21 17 56.1 21 45 -22 -21 14 2 -23 57 19 -20 57 40 -24 15 9 1.62 - 10 0 0 -22 29 46 21 17 50.7 22 44 -23 -21 9 52 -23 52 50 -20 53 32 -24 10 39 1.62 - 9 0 0 -22 26 31 21 17 45.2 23 44 -24 -21 6 44 -23 49 28 -20 50 26 -24 7 14 1.62 - 8 0 0 -22 24 20 21 17 39.6 23 43 -24 -21 4 39 -23 47 11 -20 48 21 -24 4 57 1.62 - 7 0 0 -22 23 13 21 17 33.8 24 42 -25 -21 3 35 -23 46 1 -20 47 18 -24 3 45 1.62 - 6 0 0 -22 23 10 21 17 27.8 25 42 -26 -21 3 34 -23 45 56 -20 47 17 -24 3 40 1.62 - 5 0 0 -22 24 10 21 17 21.7 25 41 -26 -21 4 34 -23 46 56 -20 48 17 -24 4 40 1.62 - 4 0 0 -22 26 14 21 17 15.5 26 40 -27 -21 6 35 -23 49 2 -20 50 18 -24 6 47 1.62 - 3 0 0 -22 29 21 21 17 9.2 26 39 -28 -21 9 38 -23 52 13 -20 53 21 -24 9 59 1.62 - 2 0 0 -22 33 31 21 17 2.8 27 39 -28 -21 13 43 -23 56 30 -20 57 24 -24 14 17 1.62 - 1 0 0 -22 38 45 21 16 56.2 27 38 -29 -21 18 50 -24 1 52 -21 2 29 -24 19 41 1.63 - 0 0 0 -22 45 2 21 16 49.5 28 37 -29 -21 24 58 -24 8 20 -21 8 36 -24 26 11 1.63 1 0 0 -22 52 23 21 16 42.7 28 36 -30 -21 32 8 -24 15 53 -21 15 43 -24 33 47 1.63 2 0 0 -23 0 48 21 16 35.8 29 36 -30 -21 40 19 -24 24 32 -21 23 52 -24 42 29 1.63 3 0 0 -23 10 16 21 16 28.8 29 35 -31 -21 49 33 -24 34 16 -21 33 3 -24 52 18 1.63 4 0 0 -23 20 48 21 16 21.8 29 34 -31 -21 59 48 -24 45 8 -21 43 16 -25 3 13 1.63 5 0 0 -23 32 25 21 16 14.6 30 33 -32 -22 11 6 -24 57 5 -21 54 30 -25 15 15 1.63 6 0 0 -23 45 6 21 16 7.3 30 32 -32 -22 23 27 -25 10 9 -22 6 46 -25 28 25 1.63 7 0 0 -23 58 52 21 16 0.0 30 31 -33 -22 36 50 -25 24 21 -22 20 5 -25 42 42 1.63 8 0 0 -24 13 43 21 15 52.5 31 30 -33 -22 51 17 -25 39 40 -22 34 27 -25 58 8 1.63 9 0 0 -24 29 40 21 15 45.0 31 29 -33 -23 6 47 -25 56 7 -22 49 52 -26 14 42 1.63 10 0 0 -24 46 42 21 15 37.5 31 28 -33 -23 23 20 -26 13 43 -23 6 20 -26 32 25 1.64 11 0 0 -25 4 51 21 15 29.8 31 27 -34 -23 40 58 -26 32 28 -23 23 51 -26 51 18 1.64 12 0 0 -25 24 7 21 15 22.1 31 26 -34 -23 59 40 -26 52 22 -23 42 27 -27 11 21 1.64 13 0 0 -25 44 30 21 15 14.4 31 26 -34 -24 19 27 -27 13 27 -24 2 7 -27 32 35 1.64 14 0 0 -26 6 2 21 15 6.6 31 25 -34 -24 40 19 -27 35 43 -24 22 52 -27 55 1 1.64 15 0 0 -26 28 42 21 14 58.7 31 24 -34 -25 2 18 -27 59 10 -24 44 42 -28 18 39 1.64 16 0 0 -26 52 31 21 14 50.8 31 23 -34 -25 25 23 -28 23 50 -25 7 39 -28 43 31 1.64 17 0 0 -27 17 30 21 14 42.9 31 21 -34 -25 49 35 -28 49 44 -25 31 42 -29 9 38 1.65 18 0 0 -27 43 40 21 14 34.9 31 20 -34 -26 14 55 -29 16 52 -25 56 52 -29 36 59 1.65 19 0 0 -28 11 2 21 14 27.0 31 19 -34 -26 41 23 -29 45 16 -26 23 10 -30 5 37 1.65 20 0 0 -28 39 36 21 14 19.0 31 18 -34 -27 9 1 -30 14 57 -26 50 37 -30 35 33 1.65 21 0 0 -29 9 24 21 14 11.0 31 17 -34 -27 37 48 -30 45 55 -27 19 12 -31 6 47 1.65 22 0 0 -29 40 26 21 14 3.0 30 16 -34 -28 7 45 -31 18 12 -27 48 58 -31 39 22 1.65 23 0 0 -30 12 43 21 13 55.0 30 15 -34 -28 38 54 -31 51 50 -28 19 54 -32 13 19 1.66 24 0 0 -30 46 17 21 13 47.0 30 14 -33 -29 11 16 -32 26 50 -28 52 1 -32 48 40 1.66 25 0 0 -31 21 9 21 13 39.0 29 13 -33 -29 44 50 -33 3 14 -29 25 21 -33 25 25 1.66 26 0 0 -31 57 20 21 13 31.1 29 12 -33 -30 19 39 -33 41 4 -29 59 54 -34 3 37 1.66 27 0 0 -32 34 51 21 13 23.2 29 11 -32 -30 55 43 -34 20 20 -30 35 42 -34 43 19 1.67 28 0 0 -33 13 45 21 13 15.3 28 10 -32 -31 33 4 -35 1 7 -31 12 45 -35 24 32 1.67 29 0 0 -33 54 2 21 13 7.5 28 9 -32 -32 11 42 -35 43 25 -31 51 4 -36 7 19 1.67 30 0 0 -34 35 45 21 12 59.8 27 8 -31 -32 51 39 -36 27 18 -32 30 41 -36 51 43 1.67 31 0 0 -35 18 55 21 12 52.1 26 7 -31 -33 32 56 -37 12 48 -33 11 37 -37 37 47 1.68 32 0 0 -36 3 35 21 12 44.6 26 6 -30 -34 15 34 -37 59 58 -33 53 53 -38 25 34 1.68 33 0 0 -36 49 46 21 12 37.1 25 5 -29 -34 59 35 -38 48 53 -34 37 31 -39 15 9 1.68 34 0 0 -37 37 31 21 12 29.7 24 4 -29 -35 45 2 -39 39 36 -35 22 31 -40 6 35 1.68 35 0 0 -38 26 54 21 12 22.5 24 3 -28 -36 31 55 -40 32 11 -36 8 57 -40 59 59 1.69 36 0 0 -39 17 57 21 12 15.4 23 2 -27 -37 20 16 -41 26 45 -36 56 49 -41 55 25 1.69 37 0 0 -40 10 43 21 12 8.4 22 1 -26 -38 10 8 -42 23 21 -37 46 10 -42 53 0 1.69 38 0 0 -41 5 16 21 12 1.6 21 0 -26 -39 1 32 -43 22 9 -38 37 0 -43 52 53 1.70 39 0 0 -42 1 42 21 11 55.0 20 360 -25 -39 54 32 -44 23 16 -39 29 24 -44 55 13 1.70 40 0 0 -43 0 4 21 11 48.5 19 359 -24 -40 49 10 -45 26 52 -40 23 23 -46 0 12 1.71 41 0 0 -44 0 29 21 11 42.3 18 358 -23 -41 45 30 -46 33 8 -41 18 59 -47 8 3 1.71 42 0 0 -45 3 4 21 11 36.3 17 357 -22 -42 43 34 -47 42 21 -42 16 18 -48 19 5 1.72 43 0 0 -46 7 56 21 11 30.6 16 356 -21 -43 43 28 -48 54 47 -43 15 20 -49 33 40 1.72 44 0 0 -47 15 15 21 11 25.2 15 355 -19 -44 45 15 -50 10 50 -44 16 12 -50 52 17 1.73 45 0 0 -48 25 14 21 11 20.0 13 354 -18 -45 49 0 -51 31 3 -45 18 56 -52 15 38 1.74 46 0 0 -49 38 5 21 11 15.2 12 353 -17 -46 54 50 -52 56 10 -46 23 38 -53 44 42 1.75 47 0 0 -50 54 8 21 11 10.7 11 353 -16 -48 2 53 -54 27 12 -47 30 25 -55 20 56 1.76 48 0 0 -52 13 47 21 11 6.7 9 352 -14 -49 13 16 -56 5 49 -48 39 24 -57 6 48 1.78 49 0 0 -53 37 33 21 11 3.1 8 351 -13 -50 26 10 -57 54 45 -49 50 42 -59 6 54 1.80 50 0 0 -55 6 11 21 11 0.0 6 350 -11 -51 41 48 -59 59 25 -51 4 31 -61 32 22 1.84 51 0 0 -56 40 45 21 10 57.5 5 349 -10 -53 0 28 .. .. .. -52 21 4 .. .. .. 1.91 52 0 0 -58 22 56 21 10 55.6 3 348 -8 -54 22 30 .. .. .. -53 40 37 .. .. .. 2.08 53 0 0 -60 15 38 21 10 54.6 1 347 -6 -55 48 23 .. .. .. -55 3 32 .. .. .. 2.98 0 0 0 .. .. .... .. .. .. .. .. .. -57 18 47 .. .. .. -56 30 18 .. .. .. .... 0 0 0 .. .. .... .. .. .. .. .. .. -58 54 40 .. .. .. -58 1 35 .. .. .. .... 0 0 0 .. .. .... .. .. .. .. .. .. -60 37 31 .. .. .. -59 38 23 .. .. .. .... Uncertainty in time = +/- 2 secs Prediction of 2023 Nov 13.9 Data for the target star ------------------------ * name: UCAC4-591-022436 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 48 57.6438 DE: +28 05 53.206 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 48 57.6438 DE: +28 05 53.206 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 12.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (776) Berbericia asteroid class: approx. diameter [km]: 155 approx. diameter ["]: 0.128 distance from Earth [AU]: 1.67030 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#134 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): 0.019", 0.001", 70.409° remarks: * orbital elements for (776)Berbericia : Mean anomaly = 47.1552023011 deg Arg. of pericenter = 306.3027343933 deg Long. of node = 79.6424149290 deg Inclination = 18.2462369401 deg Eccentricity = 0.1658675899 Semimajor axis = 2.9303502475 AU Perihelion dist = 2.4443001144 AU Mag: H = 7.76, G = 0.34 Epoch of elements : MJD 60300.88534722 TDT (2023 Dec 22.8853) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1342023Oct09,11.58,2023,12,22,21.250036,-0.348559,-0.778940,-6.908267,3.091282,0.000329,-0.000476,0.000001,0.000000 37.7052,28.1064,-139.09,-23.44,False UCAC4-591-022436,5.81601217,28.0981127,0.00,12.26,0.00,0.0,0,,5.84153659,28.1063981,0.36,0.00,0,0,0 776,Berbericia,11.23,155.300,1.6703,0,0,-2.748,16.27,,7.8,0 0,46.9812,2023,12,22,306.3027,79.6424,18.2462,0.16587,2.93035,2.44430,7.76,5.0,0.15 1.104,0.0193,0.0014,70,0.0194,Known errors,-1.00,0,-1,-1 20231222_022436,60261.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Nov 13, 20:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org