IOTA/IOTA-ES occultation update for (276049) 2002 CE26 / UCAC4 279-209517 event on 2024 Sep 15, 03:38 UT Visible from Summary ------- On 2024 Sep 15 UT, the 1.5274374333509 km diameter asteroid (276049) 2002 CE26 will occult a 10.0 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.14 mag to 17.14 mag (the magnitude of the asteroid) for at most 0.060 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: 91 * date and approx. time of event: 2024 Sep 15, 03:33 - 2024 Sep 15, 03:42 * geocentric midpoint of event [JD]: 2460568.65148700 * magnitude of target star: 10.00 * magnitude drop [mag]: 7.14 * estimated maximum duration [s]: 0.060 * Moon: 87 % sunlit, 24° distance * Sun: 115° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 2 * 1 sigma uncertainty interval [path widths]: +/- 0.51 * 1 sigma uncertainty interval [seconds]: +/- 0.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.007, +/- 0.024) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.006", 8°) * approx speed of asteroid's shadow [km/s]: 24.6787 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 279-209517 by 276049 2002 CE26 on 2024 Sep 15 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 -134 0 0 -48 0 11 3 39 20.3 72 47 -10 -47 59 7 -48 1 15 -47 58 2 -48 2 20 .... -133 0 0 -46 22 30 3 39 12.7 73 49 -11 -46 21 23 -46 23 36 -46 20 15 -46 24 44 -0.14 -132 0 0 -44 37 0 3 39 4.4 75 52 -12 -44 35 51 -44 38 9 -44 34 40 -44 39 20 -0.14 -131 0 0 -42 42 53 3 38 55.5 76 56 -13 -42 41 41 -42 44 5 -42 40 27 -42 45 19 -0.14 -130 0 0 -40 39 13 3 38 45.8 78 61 -14 -40 37 58 -40 40 28 -40 36 41 -40 41 45 -0.14 -129 0 0 -38 24 58 3 38 35.3 80 70 -15 -38 23 39 -38 26 17 -38 22 18 -38 27 37 -0.14 -128 0 0 -35 58 57 3 38 23.9 81 83 -16 -35 57 34 -36 0 20 -35 56 10 -36 1 44 -0.14 -127 0 0 -33 19 52 3 38 11.5 82 101 -17 -33 18 25 -33 21 19 -33 16 57 -33 22 48 -0.14 -126 0 0 -30 26 17 3 37 58.0 82 122 -18 -30 24 45 -30 27 49 -30 23 12 -30 29 22 -0.14 -125 0 0 -27 16 34 3 37 43.3 80 140 -20 -27 14 58 -27 18 11 -27 13 19 -27 19 50 -0.14 -124 0 0 -23 48 58 3 37 27.5 78 153 -21 -23 47 16 -23 50 41 -23 45 31 -23 52 25 -0.14 -123 0 0 -20 1 33 3 37 10.4 75 162 -22 -19 59 43 -20 3 22 -19 57 52 -20 5 13 -0.14 -122 0 0 -15 52 12 3 36 52.0 71 168 -23 -15 50 16 -15 54 9 -15 48 17 -15 56 7 -0.14 -121 0 0 -11 18 45 3 36 32.4 67 172 -24 -11 16 40 -11 20 50 -11 14 32 -11 22 57 -0.15 -120 0 0 - 6 18 54 3 36 11.7 62 175 -25 - 6 16 39 - 6 21 9 - 6 14 21 - 6 23 26 -0.15 -119 0 0 - 0 50 24 3 35 50.1 56 177 -26 - 0 47 57 - 0 52 50 - 0 45 28 - 0 55 19 -0.15 -118 0 0 5 8 50 3 35 28.1 51 179 -27 5 11 30 5 6 10 5 14 13 5 3 27 -0.15 -117 0 0 11 40 22 3 35 6.2 44 180 -27 11 43 19 11 37 26 11 46 19 11 34 26 -0.16 -116 0 0 18 44 48 3 34 45.3 37 181 -26 18 48 5 18 41 31 18 51 26 18 38 10 -0.16 -115 0 0 26 20 41 3 34 26.4 29 182 -25 26 24 23 26 16 59 26 28 9 26 13 14 -0.17 -114 0 0 34 22 53 3 34 10.7 21 182 -23 34 27 5 34 18 42 34 31 22 34 14 26 -0.18 -113 0 0 42 39 52 3 33 59.6 13 183 -21 42 44 38 42 35 7 42 49 29 42 30 17 -0.20 -112 0 0 50 50 45 3 33 53.9 5 184 -18 50 56 4 50 45 27 51 1 30 50 40 4 -0.27 Uncertainty in time = +/- 0 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 279-209517 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 24 09.5145 DE: -34 21 14.972 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 24 09.5143 DE: -34 21 14.972 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.0 * B mag [mag]: 10.7 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (276049) 2002 CE26 asteroid class: asteroid system: multiple bodies approx. diameter [km]: 2 approx. diameter ["]: 0.011 distance from Earth [AU]: 0.18700 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#186 date of fit: 2023 Mar 01 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", 0.006", 7.946° remarks: * orbital elements for (276049)2002 CE26 : Mean anomaly = 348.6271408954 deg Arg. of pericenter = 228.0662224395 deg Long. of node = 161.8721780744 deg Inclination = 47.2880891501 deg Eccentricity = 0.5612062407 Semimajor axis = 2.2332856355 AU Perihelion dist = 0.9799517996 AU Mag: H = 16.68, G = -0.25 Epoch of elements : MJD 60568.15148787 TDT (2024 Sep 15.1515) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1862023Mar01,0.06,2024,9,15,3.635688,-0.133001,0.025280,-2.601848,-13.684176,0.001189,0.000300,-0.000001,0.000001 -117.6870,-34.3076,124.26,2.86,False UCAC4 279-209517,19.40264295,-34.3541586,10.67,10.00,9.64,0.1,0,,19.42978705,-34.3076044,7.14,7.06,0,0,0 276049,2002 CE26,17.14,1.541,0.1870,0,0,-9.885,-642.95,,0.2,0 ,0.3,4.700,0.650000,,22.50,,,, 0,348.5824,2024,9,15,228.0662,161.8722,47.2881,0.56121,2.23329,0.97995,16.68,5.0,-0.25 1.510,0.0243,0.0057,8,0.0058,Known errors,0.83,0,-1,-1 20240915_209517,60140.56 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:30 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org