IOTA/IOTA-ES occultation update for (508) Princetonia / TYC 2404-00617-1 event on 2024 Oct 27, 08:55 UT Visible from Summary ------- On 2024 Oct 27 UT, the 133.076 km diameter asteroid (508) Princetonia will occult a 9.7 mag star in the constellation Auriga for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.09 mag to 13.73 mag (the magnitude of the asteroid) for at most 19.560 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 Oct 27, 08:47 - 2024 Oct 27, 09:03 * geocentric midpoint of event [JD]: 2460610.87188383 * magnitude of target star: 9.67 * magnitude drop [mag]: 4.09 * estimated maximum duration [s]: 19.560 * Moon: 22 % sunlit, 72° distance * Sun: 128° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 284 * 1 sigma uncertainty interval [path widths]: +/- 0.28 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.002", 77°) * approx speed of asteroid's shadow [km/s]: 6.8019 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2404-00617-1 by 508 Princetonia on 2024 Oct 27 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 ' " Longitude Longitude Longitude Longitude .. .. .. -46 0 0 .. .. .... .. .. .. -133 14 37 ... .. .. -131 54 36 ... .. .. .... -134 26 45 -45 0 0 8 48 15.5 0 42 -32 -132 4 6 ... .. .. -130 48 45 ... .. .. .... -133 16 43 -44 0 0 8 48 16.2 2 41 -33 -131 2 18 -135 43 55 -129 50 48 ... .. .. -1.15 -132 15 32 -43 0 0 8 48 17.9 3 41 -34 -130 7 55 -134 34 1 -128 59 41 -135 58 22 -1.52 -131 21 54 -42 0 0 8 48 20.4 4 40 -35 -129 20 0 -133 33 13 -128 14 32 -134 52 37 -1.67 -130 34 47 -41 0 0 8 48 23.7 5 40 -36 -128 37 46 -132 40 8 -127 34 43 -133 55 28 -1.75 -129 53 26 -40 0 0 8 48 27.7 6 39 -37 -128 0 38 -131 53 42 -126 59 40 -133 5 38 -1.80 -129 17 13 -39 0 0 8 48 32.3 8 39 -38 -127 28 5 -131 13 7 -126 28 58 -132 22 11 -1.83 -128 45 37 -38 0 0 8 48 37.5 9 38 -39 -126 59 42 -130 37 45 -126 2 12 -131 44 21 -1.86 -128 18 14 -37 0 0 8 48 43.3 10 38 -40 -126 35 9 -130 7 5 -125 39 5 -131 11 34 -1.87 -127 54 43 -36 0 0 8 48 49.7 11 38 -40 -126 14 8 -129 40 41 -125 19 21 -130 43 19 -1.89 -127 34 47 -35 0 0 8 48 56.6 12 38 -41 -125 56 24 -129 18 13 -125 2 45 -130 19 14 -1.90 -127 18 11 -34 0 0 8 49 4.0 12 38 -42 -125 41 46 -128 59 22 -124 49 7 -129 58 59 -1.91 -127 4 41 -33 0 0 8 49 11.9 13 38 -43 -125 30 1 -128 43 55 -124 38 17 -129 42 18 -1.92 -126 54 9 -32 0 0 8 49 20.3 14 38 -44 -125 21 1 -128 31 38 -124 30 5 -129 28 56 -1.92 -126 46 24 -31 0 0 8 49 29.2 15 38 -45 -125 14 37 -128 22 22 -124 24 24 -129 18 43 -1.93 -126 41 18 -30 0 0 8 49 38.6 16 38 -46 -125 10 43 -128 15 57 -124 21 8 -129 11 28 -1.93 -126 38 46 -29 0 0 8 49 48.4 17 38 -47 -125 9 14 -128 12 15 -124 20 11 -129 7 4 -1.94 -126 38 41 -28 0 0 8 49 58.7 18 38 -48 -125 10 3 -128 11 11 -124 21 29 -129 5 23 -1.94 -126 40 59 -27 0 0 8 50 9.5 18 38 -49 -125 13 7 -128 12 39 -124 24 57 -129 6 21 1.94 -126 45 36 -26 0 0 8 50 20.7 19 39 -50 -125 18 22 -128 16 35 -124 30 33 -129 9 51 1.94 -126 52 29 -25 0 0 8 50 32.3 20 39 -51 -125 25 46 -128 22 55 -124 38 14 -129 15 51 1.94 -127 1 36 -24 0 0 8 50 44.5 21 39 -52 -125 35 17 -128 31 37 -124 47 57 -129 24 18 1.94 -127 12 55 -23 0 0 8 50 57.0 21 39 -53 -125 46 52 -128 42 38 -124 59 42 -129 35 11 1.94 -127 26 25 -22 0 0 8 51 10.0 22 40 -54 -126 0 32 -128 55 59 -125 13 27 -129 48 27 1.94 -127 42 6 -21 0 0 8 51 23.5 23 40 -55 -126 16 15 -129 11 39 -125 29 13 -130 4 6 1.93 -127 59 57 -20 0 0 8 51 37.4 23 41 -56 -126 34 2 -129 29 37 -125 46 58 -130 22 10 1.93 -128 20 1 -19 0 0 8 51 51.7 24 41 -57 -126 53 54 -129 49 56 -126 6 45 -130 42 40 1.93 -128 42 18 -18 0 0 8 52 6.5 24 42 -58 -127 15 52 -130 12 38 -126 28 34 -131 5 38 1.93 -129 6 52 -17 0 0 8 52 21.8 25 42 -59 -127 39 59 -130 37 44 -126 52 27 -131 31 6 1.92 -129 33 45 -16 0 0 8 52 37.6 25 43 -60 -128 6 16 -131 5 20 -127 18 27 -131 59 10 1.92 -130 3 1 -15 0 0 8 52 53.8 26 43 -61 -128 34 48 -131 35 30 -127 46 37 -132 29 56 1.92 -130 34 46 -14 0 0 8 53 10.6 26 44 -62 -129 5 39 -132 8 21 -128 17 1 -133 3 29 1.91 -131 9 6 -13 0 0 8 53 27.8 27 44 -63 -129 38 54 -132 43 59 -128 49 43 -133 39 58 1.91 -131 46 9 -12 0 0 8 53 45.6 27 45 -64 -130 14 39 -133 22 34 -129 24 51 -134 19 35 1.91 -132 26 4 -11 0 0 8 54 4.0 27 46 -66 -130 53 4 -134 4 18 -130 2 30 -135 2 31 1.90 -133 9 2 -10 0 0 8 54 22.9 28 47 -67 -131 34 15 -134 49 25 -130 42 50 -135 49 3 1.90 -133 55 16 - 9 0 0 8 54 42.4 28 47 -68 -132 18 26 -135 38 10 -131 26 0 -136 39 30 1.90 -134 45 4 - 8 0 0 8 55 2.6 28 48 -69 -133 5 49 -136 30 56 -132 12 12 -137 34 17 1.89 -135 38 45 - 7 0 0 8 55 23.4 28 49 -70 -133 56 40 -137 28 9 -133 1 40 -138 33 54 1.89 -136 36 45 - 6 0 0 8 55 45.1 28 50 -71 -134 51 19 -138 30 22 -133 54 43 -139 39 4 1.89 -137 39 35 - 5 0 0 8 56 7.5 28 50 -72 -135 50 10 -139 38 20 -134 51 41 -140 50 38 1.89 -138 47 58 - 4 0 0 8 56 30.9 28 51 -73 -136 53 46 -140 53 1 -135 53 2 -142 9 53 1.88 -140 2 48 - 3 0 0 8 56 55.3 27 52 -74 -138 2 44 -142 15 47 -136 59 18 -143 38 37 1.88 -141 25 20 - 2 0 0 8 57 21.0 27 53 -75 -139 17 57 -143 48 38 -138 11 14 -145 19 35 1.88 -142 57 22 - 1 0 0 8 57 48.2 26 54 -75 -140 40 36 -145 34 45 -139 29 47 -147 17 31 1.89 -144 41 42 0 0 0 8 58 17.3 26 55 -76 -142 12 21 -147 39 36 -140 56 16 -149 41 47 1.89 -146 42 58 1 0 0 8 58 49.1 25 56 -76 -143 55 42 -150 14 43 -142 32 35 -152 57 44 1.90 Latitude Latitude Latitude Latitude -147 0 0 1 7 38 8 58 53.4 25 56 -76 2 29 0 - 0 17 51 3 13 22 - 1 8 16 1.87 -148 0 0 1 33 4 8 59 8.1 24 56 -75 2 53 23 0 8 47 3 37 14 - 0 40 51 1.88 -149 0 0 1 56 15 8 59 22.4 23 56 -75 3 15 39 0 33 1 3 59 1 - 0 15 56 1.89 -150 0 0 2 17 15 8 59 36.2 23 57 -75 3 35 51 0 54 58 4 18 49 0 6 36 1.89 -151 0 0 2 36 9 8 59 49.5 22 57 -74 3 54 3 1 14 40 4 36 39 0 26 48 1.89 -152 0 0 2 53 0 9 0 2.3 22 57 -74 4 10 17 1 32 12 4 52 34 0 44 47 1.89 -153 0 0 3 7 49 9 0 14.7 21 57 -73 4 24 35 1 47 36 5 6 37 1 0 33 1.90 -154 0 0 3 20 40 9 0 26.7 20 58 -72 4 37 1 2 0 56 5 18 49 1 14 11 1.90 -155 0 0 3 31 34 9 0 38.1 19 58 -72 4 47 34 2 12 13 5 29 12 1 25 43 1.91 -156 0 0 3 40 32 9 0 49.2 19 58 -71 4 56 17 2 21 29 5 37 47 1 35 10 1.91 -157 0 0 3 47 36 9 0 59.8 18 58 -70 5 3 10 2 28 45 5 44 34 1 42 34 1.92 -158 0 0 3 52 46 9 1 10.0 17 58 -69 5 8 14 2 34 2 5 49 35 1 47 55 1.92 -159 0 0 3 56 3 9 1 19.7 16 58 -69 5 11 29 2 37 20 5 52 49 1 51 14 1.93 -160 0 0 3 57 26 9 1 29.0 16 58 -68 5 12 55 2 38 39 5 54 17 1 52 30 1.93 -161 0 0 3 56 54 9 1 37.8 15 59 -67 5 12 32 2 37 59 5 53 58 1 51 44 1.94 -162 0 0 3 54 29 9 1 46.2 14 59 -66 5 10 19 2 35 18 5 51 52 1 48 54 1.95 -163 0 0 3 50 7 9 1 54.1 13 59 -65 5 6 15 2 30 36 5 47 57 1 43 59 1.96 -164 0 0 3 43 48 9 2 1.6 12 59 -64 5 0 19 2 23 51 5 42 12 1 36 58 1.97 -165 0 0 3 35 29 9 2 8.6 11 59 -63 4 52 29 2 15 0 5 34 37 1 27 46 1.98 -166 0 0 3 25 9 9 2 15.1 10 59 -62 4 42 42 2 4 2 5 25 8 1 16 23 1.99 -167 0 0 3 12 45 9 2 21.1 9 59 -61 4 30 58 1 50 51 5 13 43 1 2 44 2.00 -168 0 0 2 58 12 9 2 26.7 9 59 -60 4 17 11 1 35 26 5 0 20 0 46 44 2.02 -169 0 0 2 41 28 9 2 31.6 8 59 -59 4 1 20 1 17 40 4 44 56 0 28 19 2.04 -170 0 0 2 22 27 9 2 36.1 7 59 -58 3 43 20 0 57 29 4 27 26 0 7 23 2.06 -171 0 0 2 1 4 9 2 39.9 6 59 -57 3 23 6 0 34 46 4 7 47 - 0 16 11 2.09 -172 0 0 1 37 14 9 2 43.2 4 59 -56 3 0 33 0 9 25 3 45 53 - 0 42 31 2.14 -173 0 0 1 10 47 9 2 45.8 3 59 -55 2 35 34 - 0 18 45 3 21 39 - 1 11 48 2.21 -174 0 0 0 41 37 9 2 47.7 2 59 -54 2 8 4 - 0 49 53 2 54 59 - 1 44 13 2.35 -175 0 0 0 9 34 9 2 48.9 1 59 -53 1 37 52 - 1 24 10 2 25 43 .. .. .. 2.75 -176 0 0 .. .. .... .. .. .. .. .. .. 1 4 51 .. .. .. 1 53 45 .. .. .. .... -177 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 1 18 53 .. .. .. .... Uncertainty in time = +/- 6 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 2404-00617-1 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 40 52.0064 DE: +31 23 05.092 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 40 52.0064 DE: +31 23 05.092 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.7 * B mag [mag]: 9.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (508) Princetonia asteroid class: approx. diameter [km]: 133 approx. diameter ["]: 0.074 distance from Earth [AU]: 2.48320 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#109 date of fit: 2023 Apr 27 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): 0.022", 0.002", 77.025° remarks: * orbital elements for (508)Princetonia : Mean anomaly = 150.3703019883 deg Arg. of pericenter = 237.3229008971 deg Long. of node = 44.1677919417 deg Inclination = 13.3183692435 deg Eccentricity = 0.0072702992 Semimajor axis = 3.1700830131 AU Perihelion dist = 3.1470355611 AU Mag: H = 8.43, G = 0.15 Epoch of elements : MJD 60610.37188329 TDT (2024 Oct 27.3719) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1092023Apr27,19.56,2024,10,27,8.925212,-0.777364,-0.420441,-1.826559,3.376858,-0.004660,-0.000654,0.000001,0.000000 -84.4689,31.3978,42.08,-13.00,False TYC 2404-00617-1,5.68111287,31.3847477,9.77,9.67,9.62,0.0,0,,5.70813670,31.3978465,4.09,3.70,0,0,0 508,Princetonia,13.73,133.076,2.4832,0,0,-0.506,11.96,,7.0,0 0,150.3054,2024,10,27,237.3229,44.1678,13.3184,0.00727,3.17008,3.14704,8.43,5.0,0.15 1.283,0.0217,0.0018,77,0.0209,Known errors,1.09,0,-1,-1 20241027_0617-1,60140.66 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:52 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org