IOTA/IOTA-ES occultation update for (413) Edburga / TYC 6972-00633-1 event on 2024 Jan 02, 11:20 UT Visible from Summary ------- On 2024 Jan 02 UT, the 33.932 km diameter asteroid (413) Edburga will occult a 11.8 mag star in the constellation Aquarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.33 mag to 13.94 mag (the magnitude of the asteroid) for at most 0.860 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: 2024 Jan 02, 11:17 - 2024 Jan 02, 11:22 * geocentric midpoint of event [JD]: 2460311.97223454 * magnitude of target star: 11.75 * magnitude drop [mag]: 2.33 * estimated maximum duration [s]: 0.860 * Moon: 66 % sunlit, 161° distance * Sun: 59° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 40 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.002", 79°) * approx speed of asteroid's shadow [km/s]: 39.4542 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6972-00633-1 by 413 Edburga on 2024 Jan 2 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 - 48 0 0 .. .. .... .. .. .. .. .. .. -53 32 3 .. .. .. -53 38 47 .. .. .. .... - 47 0 0 -53 47 57 11 17 45.2 1 130 37 -54 2 14 -53 33 44 -54 8 57 -53 27 4 .... - 46 0 0 -54 17 32 11 17 45.3 1 129 37 -54 31 45 -54 3 22 -54 38 26 -53 56 45 0.61 - 45 0 0 -54 46 26 11 17 45.4 2 128 38 -55 0 34 -54 32 20 -55 7 13 -54 25 45 0.63 - 44 0 0 -55 14 39 11 17 45.5 3 127 38 -55 28 44 -55 0 38 -55 35 21 -54 54 4 0.63 - 43 0 0 -55 42 13 11 17 45.6 4 126 38 -55 56 13 -55 28 15 -56 2 47 -55 21 44 0.64 - 42 0 0 -56 9 6 11 17 45.8 4 125 39 -56 23 1 -55 55 13 -56 29 34 -55 48 43 0.64 - 41 0 0 -56 35 19 11 17 46.0 5 125 39 -56 49 11 -56 21 31 -56 55 41 -56 15 3 0.64 - 40 0 0 -57 0 54 11 17 46.2 6 124 40 -57 14 41 -56 47 10 -57 21 9 -56 40 44 0.64 - 39 0 0 -57 25 50 11 17 46.5 6 123 40 -57 39 32 -57 12 10 -57 45 58 -57 5 47 0.64 - 38 0 0 -57 50 7 11 17 46.7 7 122 40 -58 3 45 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53 11 21 59.5 25 252 -30 -17 0 19 -16 33 31 -17 6 37 -16 27 15 0.67 146 0 0 -16 6 29 11 22 1.1 23 252 -32 -16 19 49 -15 53 11 -16 26 6 -15 46 57 0.67 147 0 0 -15 26 40 11 22 2.7 22 251 -33 -15 39 55 -15 13 26 -15 46 9 -15 7 15 0.67 148 0 0 -14 47 26 11 22 4.1 21 251 -34 -15 0 38 -14 34 17 -15 6 49 -14 28 8 0.67 149 0 0 -14 8 50 11 22 5.5 20 251 -35 -14 21 57 -13 55 46 -14 28 7 -13 49 39 0.67 150 0 0 -13 30 52 11 22 6.8 19 250 -36 -13 43 54 -13 17 53 -13 50 2 -13 11 48 0.67 151 0 0 -12 53 33 11 22 8.0 18 250 -37 -13 6 31 -12 40 38 -13 12 36 -12 34 35 0.68 152 0 0 -12 16 54 11 22 9.2 17 250 -39 -12 29 47 -12 4 3 -12 35 50 -11 58 2 0.68 153 0 0 -11 40 54 11 22 10.3 16 249 -40 -11 53 43 -11 28 8 -11 59 44 -11 22 9 0.68 154 0 0 -11 5 36 11 22 11.2 14 249 -41 -11 18 21 -10 52 54 -11 24 20 -10 46 57 0.68 155 0 0 -10 31 0 11 22 12.2 13 249 -42 -10 43 40 -10 18 22 -10 49 37 -10 12 27 0.68 156 0 0 - 9 57 5 11 22 13.0 12 249 -43 -10 9 41 - 9 44 32 -10 15 36 - 9 38 39 0.69 157 0 0 - 9 23 54 11 22 13.8 11 248 -44 - 9 36 25 - 9 11 24 - 9 42 18 - 9 5 33 0.69 158 0 0 - 8 51 25 11 22 14.5 10 248 -45 - 9 3 52 - 8 38 59 - 9 9 43 - 8 33 10 0.70 159 0 0 - 8 19 39 11 22 15.1 9 248 -46 - 8 32 3 - 8 7 18 - 8 37 52 - 8 1 31 0.70 160 0 0 - 7 48 38 11 22 15.6 8 248 -47 - 8 0 57 - 7 36 20 - 8 6 45 - 7 30 35 0.71 161 0 0 - 7 18 20 11 22 16.1 7 248 -48 - 7 30 36 - 7 6 6 - 7 36 21 - 7 0 23 0.72 162 0 0 - 6 48 47 11 22 16.5 6 248 -49 - 7 0 58 - 6 36 37 - 7 6 42 - 6 30 55 0.74 163 0 0 - 6 19 58 11 22 16.8 4 248 -50 - 6 32 6 - 6 7 51 - 6 37 48 - 6 2 11 0.76 164 0 0 - 5 51 53 11 22 17.1 3 247 -51 - 6 3 58 - 5 39 51 - 6 9 38 - 5 34 12 0.80 165 0 0 - 5 24 34 11 22 17.2 2 247 -52 - 5 36 35 - 5 12 35 - 5 42 14 - 5 6 58 0.87 166 0 0 - 4 57 59 11 22 17.3 1 247 -53 - 5 9 57 - 4 46 4 - 5 15 34 - 4 40 29 1.08 167 0 0 - 4 32 10 11 22 17.4 0 247 -54 - 4 44 4 .. .. .. - 4 49 39 .. .. .. 9.53 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: TYC 6972-00633-1 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 23 08 05.2001 DE: -22 55 37.860 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 23 08 05.1999 DE: -22 55 37.860 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.8 * B mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (413) Edburga asteroid class: approx. diameter [km]: 34 approx. diameter ["]: 0.023 distance from Earth [AU]: 1.99440 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#78 date of fit: 2023 Apr 24 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): 0.018", 0.002", 78.685° remarks: * orbital elements for (413)Edburga : Mean anomaly = 6.1940894610 deg Arg. of pericenter = 252.9836671175 deg Long. of node = 103.6799350084 deg Inclination = 18.7268727719 deg Eccentricity = 0.3418270716 Semimajor axis = 2.5844700181 AU Perihelion dist = 1.7010282001 AU Mag: H = 9.99, G = 0.15 Epoch of elements : MJD 60311.47223505 TDT (2024 Jan 02.4722) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#782023Apr24,0.86,2024,1,2,11.333629,0.249552,-0.476306,19.723330,10.339262,0.004214,0.001056,-0.000001,-0.000001 75.7319,-22.8004,10.94,-22.94,False TYC 6972-00633-1,23.13477787,-22.9271830,12.03,11.75,11.60,0.0,0,,23.15591410,-22.8004490,2.33,2.07,0,0,0 413,Edburga,13.94,33.932,1.9944,0,0,6.289,45.60,,2.0,0 0,6.0821,2024,1,2,252.9837,103.6799,18.7269,0.34183,2.58447,1.70103,9.99,5.0,0.15 1.234,0.0183,0.0020,79,0.0055,Known errors,1.02,0,-1,-1 20240102_0633-1,60137.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 11, 23:53 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org