IOTA/IOTA-ES occultation update for (3162) Nostalgia / TYC 5284-01786-1 event on 2024 Oct 19, 23:32 UT Visible from Summary ------- On 2024 Oct 19 UT, the 30.2443580802852 km diameter asteroid (3162) Nostalgia will occult a 10.8 mag star in the constellation Cetus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.05 mag to 15.80 mag (the magnitude of the asteroid) for at most 2.650 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: 95 * date and approx. time of event: 2024 Oct 19, 23:22 - 2024 Oct 19, 23:41 * geocentric midpoint of event [JD]: 2460603.48069425 * magnitude of target star: 10.76 * magnitude drop [mag]: 5.05 * estimated maximum duration [s]: 2.650 * Moon: 90 % sunlit, 45° distance * Sun: 153° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 31 * 1 sigma uncertainty interval [path widths]: +/- 0.43 * 1 sigma uncertainty interval [seconds]: +/- 5.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.041, +/- 0.014) * 1 sigma uncertainty ellipse (major, minor, PA): (0.043", 0.004", 73°) * approx speed of asteroid's shadow [km/s]: 11.4859 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5284-01786-1 by 3162 Nostalgia on 2024 Oct 19 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 - 83 0 0 -21 28 35 23 41 23.2 0 105 -2 -21 20 0 -21 37 10 .. .. .. -21 44 33 .... - 82 0 0 -21 43 12 23 41 23.1 1 104 -3 -21 34 38 -21 51 46 -21 27 16 -21 59 8 0.01 - 81 0 0 -21 57 17 23 41 22.8 2 104 -4 -21 48 45 -22 5 50 -21 41 23 -22 13 11 -0.06 - 80 0 0 -22 10 51 23 41 22.4 3 104 -4 -22 2 19 -22 19 22 -21 54 58 -22 26 42 -0.08 - 79 0 0 -22 23 52 23 41 21.9 4 103 -5 -22 15 21 -22 32 22 -22 8 2 -22 39 42 -0.09 - 78 0 0 -22 36 22 23 41 21.2 5 103 -6 -22 27 52 -22 44 51 -22 20 33 -22 52 9 -0.10 - 77 0 0 -22 48 20 23 41 20.3 6 103 -7 -22 39 51 -22 56 48 -22 32 33 -23 4 6 -0.10 - 76 0 0 -22 59 47 23 41 19.3 7 102 -8 -22 51 19 -23 8 14 -22 44 2 -23 15 31 -0.11 - 75 0 0 -23 10 42 23 41 18.2 8 102 -9 -23 2 15 -23 19 8 -22 54 59 -23 26 24 -0.11 - 74 0 0 -23 21 6 23 41 16.9 9 101 -9 -23 12 40 -23 29 32 -23 5 25 -23 36 47 -0.11 - 73 0 0 -23 30 59 23 41 15.5 9 101 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53 30 23 27 58.9 62 225 -58 6 3 10 5 43 49 6 11 30 5 35 30 -0.13 37 0 0 6 29 19 23 27 49.2 61 226 -57 6 39 0 6 19 39 6 47 20 6 11 19 -0.13 38 0 0 7 5 9 23 27 39.7 60 226 -57 7 14 50 6 55 28 7 23 10 6 47 9 -0.13 39 0 0 7 40 59 23 27 30.3 59 227 -56 7 50 40 7 31 18 7 59 0 7 22 58 -0.13 40 0 0 8 16 47 23 27 21.0 58 227 -55 8 26 28 8 7 5 8 34 48 7 58 46 -0.13 41 0 0 8 52 32 23 27 11.9 56 228 -54 9 2 13 8 42 51 9 10 34 8 34 31 -0.13 42 0 0 9 28 14 23 27 2.8 55 228 -53 9 37 55 9 18 33 9 46 16 9 10 13 -0.13 43 0 0 10 3 51 23 26 53.9 54 229 -52 10 13 32 9 54 10 10 21 53 9 45 50 -0.13 44 0 0 10 39 23 23 26 45.2 53 229 -51 10 49 4 10 29 42 10 57 24 10 21 22 -0.13 45 0 0 11 14 48 23 26 36.5 52 230 -50 11 24 29 11 5 7 11 32 49 10 56 48 -0.13 46 0 0 11 50 6 23 26 28.1 51 230 -49 11 59 46 11 40 25 12 8 6 11 32 6 -0.13 47 0 0 12 25 14 23 26 19.7 50 230 -48 12 34 55 12 15 34 12 43 14 12 7 15 -0.13 48 0 0 13 0 14 23 26 11.6 49 231 -48 13 9 54 12 50 34 13 18 13 12 42 15 -0.13 49 0 0 13 35 3 23 26 3.5 48 231 -47 13 44 42 13 25 23 13 53 1 13 17 5 -0.13 50 0 0 14 9 40 23 25 55.7 47 231 -46 14 19 19 14 0 1 14 27 38 13 51 43 -0.13 51 0 0 14 44 5 23 25 48.0 45 232 -45 14 53 44 14 34 27 15 2 2 14 26 9 -0.13 52 0 0 15 18 17 23 25 40.5 44 232 -44 15 27 55 15 8 39 15 36 12 15 0 22 -0.13 53 0 0 15 52 15 23 25 33.1 43 233 -43 16 1 52 15 42 38 16 10 9 15 34 21 -0.13 54 0 0 16 25 57 23 25 25.9 42 233 -42 16 35 34 16 16 21 16 43 50 16 8 5 -0.13 55 0 0 16 59 24 23 25 18.9 41 233 -41 17 8 59 16 49 48 17 17 15 16 41 33 -0.13 56 0 0 17 32 34 23 25 12.0 40 234 -40 17 42 9 17 22 59 17 50 24 17 14 45 -0.13 57 0 0 18 5 26 23 25 5.4 39 234 -39 18 15 0 17 55 52 18 23 15 17 47 39 -0.13 58 0 0 18 38 0 23 24 58.9 38 235 -38 18 47 34 18 28 27 18 55 47 18 20 15 -0.13 59 0 0 19 10 16 23 24 52.6 37 235 -37 19 19 48 19 0 44 19 28 0 18 52 31 -0.13 60 0 0 19 42 11 23 24 46.5 36 235 -36 19 51 42 19 32 40 19 59 54 19 24 29 -0.13 61 0 0 20 13 46 23 24 40.5 35 236 -35 20 23 16 20 4 16 20 31 27 19 56 6 -0.13 62 0 0 20 45 0 23 24 34.8 34 236 -34 20 54 29 20 35 31 21 2 39 20 27 22 -0.13 63 0 0 21 15 53 23 24 29.2 33 236 -34 21 25 20 21 6 25 21 33 29 20 58 16 -0.13 64 0 0 21 46 23 23 24 23.8 32 237 -33 21 55 49 21 36 56 22 3 57 21 28 49 -0.13 65 0 0 22 16 30 23 24 18.6 31 237 -32 22 25 55 22 7 4 22 34 2 21 58 58 -0.13 66 0 0 22 46 14 23 24 13.6 30 238 -31 22 55 38 22 36 49 23 3 44 22 28 44 -0.13 67 0 0 23 15 33 23 24 8.7 29 238 -30 23 24 56 23 6 11 23 33 1 22 58 6 -0.13 68 0 0 23 44 29 23 24 4.1 27 239 -29 23 53 51 23 35 7 24 1 54 23 27 4 -0.13 69 0 0 24 12 59 23 23 59.6 26 239 -28 24 22 20 24 3 39 24 30 22 23 55 37 -0.13 70 0 0 24 41 5 23 23 55.3 25 239 -27 24 50 24 24 31 46 24 58 25 24 23 45 -0.13 71 0 0 25 8 44 23 23 51.2 24 240 -26 25 18 2 24 59 27 25 26 2 24 51 27 -0.13 72 0 0 25 35 58 23 23 47.2 23 240 -25 25 45 14 25 26 42 25 53 13 25 18 44 -0.13 73 0 0 26 2 45 23 23 43.4 22 241 -24 26 12 0 25 53 31 26 19 58 25 45 33 -0.13 74 0 0 26 29 6 23 23 39.9 21 241 -24 26 38 19 26 19 53 26 46 16 26 11 57 -0.13 75 0 0 26 54 59 23 23 36.4 21 242 -23 27 4 11 26 45 47 27 12 6 26 37 53 -0.13 76 0 0 27 20 25 23 23 33.2 20 242 -22 27 29 36 27 11 15 27 37 30 27 3 22 -0.13 77 0 0 27 45 24 23 23 30.1 19 243 -21 27 54 33 27 36 15 28 2 26 27 28 23 -0.13 78 0 0 28 9 55 23 23 27.2 18 243 -20 28 19 3 28 0 48 28 26 54 27 52 57 -0.13 79 0 0 28 33 58 23 23 24.4 17 244 -19 28 43 4 28 24 52 28 50 54 28 17 3 -0.13 80 0 0 28 57 33 23 23 21.9 16 244 -18 29 6 38 28 48 29 29 14 26 28 40 40 -0.13 81 0 0 29 20 40 23 23 19.4 15 245 -18 29 29 43 29 11 37 29 37 30 29 3 50 -0.13 82 0 0 29 43 18 23 23 17.2 14 245 -17 29 52 19 29 34 17 30 0 6 29 26 31 -0.13 83 0 0 30 5 28 23 23 15.1 13 246 -16 30 14 28 29 56 28 30 22 13 29 48 43 -0.13 84 0 0 30 27 9 23 23 13.1 12 246 -15 30 36 7 30 18 11 30 43 51 30 10 27 -0.13 85 0 0 30 48 21 23 23 11.4 11 247 -14 30 57 18 30 39 25 31 5 1 30 31 43 -0.13 86 0 0 31 9 5 23 23 9.7 10 247 -13 31 18 1 31 0 10 31 25 42 30 52 29 -0.13 87 0 0 31 29 20 23 23 8.2 9 248 -13 31 38 14 31 20 26 31 45 54 31 12 47 -0.12 88 0 0 31 49 6 23 23 6.9 8 248 -12 31 57 59 31 40 14 32 5 38 31 32 36 -0.12 89 0 0 32 8 24 23 23 5.7 7 249 -11 32 17 15 31 59 33 32 24 52 31 51 56 -0.12 90 0 0 32 27 12 23 23 4.7 6 249 -10 32 36 2 32 18 23 32 43 38 32 10 47 -0.12 91 0 0 32 45 32 23 23 3.7 6 250 -9 32 54 20 32 36 44 33 1 55 32 29 10 -0.12 92 0 0 33 3 23 23 23 3.0 5 250 -8 33 12 10 32 54 36 33 19 43 32 47 3 -0.12 93 0 0 33 20 45 23 23 2.3 4 251 -8 33 29 31 33 12 0 33 37 3 33 4 28 -0.12 94 0 0 33 37 38 23 23 1.8 3 251 -7 33 46 22 33 28 55 33 53 54 33 21 24 -0.11 95 0 0 33 54 3 23 23 1.5 2 252 -6 34 2 46 33 45 21 34 10 16 33 37 51 -0.11 96 0 0 34 9 59 23 23 1.2 1 252 -5 34 18 40 34 1 18 34 26 9 33 53 49 -0.09 97 0 0 34 25 27 23 23 1.1 0 253 -5 34 34 7 34 16 47 34 41 34 34 9 19 0.00 Uncertainty in time = +/- 5 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 5284-01786-1 * constellation : Cetus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 02 25 46.2893 DE: -13 57 16.260 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 02 25 46.2893 DE: -13 57 16.261 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.8 * B mag [mag]: 11.4 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3162) Nostalgia asteroid class: approx. diameter [km]: 30 approx. diameter ["]: 0.022 distance from Earth [AU]: 1.89780 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 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): 0.043", 0.004", 72.6° remarks: * orbital elements for (3162)Nostalgia : Mean anomaly = 318.6060206709 deg Arg. of pericenter = 315.2411634032 deg Long. of node = 128.6294543429 deg Inclination = 17.9168158009 deg Eccentricity = 0.1571293367 Semimajor axis = 3.1530178382 AU Perihelion dist = 2.6575862368 AU Mag: H = 11.54, G = 0.15 Epoch of elements : MJD 60602.98069417 TDT (2024 Oct 19.9807) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,2.65,2024,10,19,23.536662,-0.056547,0.103035,-5.683329,-3.119088,-0.001163,0.002337,0.000001,0.000001 14.7681,-13.8403,-176.85,-10.43,False TYC 5284-01786-1,2.42952480,-13.9545166,11.36,10.76,10.44,0.1,0,,2.44970299,-13.8402792,5.05,4.92,0,0,0 3162,Nostalgia,15.80,30.382,1.8978,0,0,-1.808,-14.45,,2.4,0 0,318.4334,2024,10,19,315.2412,128.6295,17.9168,0.15713,3.15302,2.65759,11.54,5.0,0.15 1.430,0.0430,0.0043,73,0.0095,Known errors,1.12,0,-1,-1 20241019_1786-1,60140.65 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:31 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org