IOTA/IOTA-ES occultation update for (1203) Nanna / TYC 578-01303-1 event on 2024 Nov 13, 01:41 UT Visible from Summary ------- On 2024 Nov 13 UT, the 33.0404333185198 km diameter asteroid (1203) Nanna will occult a 8.5 mag star in the constellation Pisces for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.81 mag to 15.35 mag (the magnitude of the asteroid) for at most 6.540 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: 87 * date and approx. time of event: 2024 Nov 13, 01:22 - 2024 Nov 13, 02:01 * geocentric midpoint of event [JD]: 2460627.57071292 * magnitude of target star: 8.54 * magnitude drop [mag]: 6.81 * estimated maximum duration [s]: 6.540 * Moon: 88 % sunlit, 18° distance * Sun: 122° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 36 * 1 sigma uncertainty interval [path widths]: +/- 0.56 * 1 sigma uncertainty interval [seconds]: +/- 5.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.010) * 1 sigma uncertainty ellipse (major, minor, PA): (0.029", 0.002", 70°) * approx speed of asteroid's shadow [km/s]: 5.0696 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 578-01303-1 by 1203 Nanna on 2024 Nov 13 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 -170 0 0 - 7 10 10 1 22 38.9 1 89 55 - 7 20 1 - 7 0 20 - 7 31 7 - 6 49 17 .... -169 0 0 - 7 9 2 1 22 39.4 2 88 54 - 7 18 53 - 6 59 12 - 7 29 59 - 6 48 9 0.30 -168 0 0 - 7 8 14 1 22 40.2 3 88 53 - 7 18 5 - 6 58 24 - 7 29 12 - 6 47 20 0.35 -167 0 0 - 7 7 46 1 22 41.5 4 88 52 - 7 17 37 - 6 57 56 - 7 28 44 - 6 46 52 0.38 -166 0 0 - 7 7 39 1 22 43.2 5 88 51 - 7 17 30 - 6 57 48 - 7 28 36 - 6 46 44 0.40 -165 0 0 - 7 7 51 1 22 45.3 6 88 50 - 7 17 42 - 6 58 1 - 7 28 49 - 6 46 57 0.41 -164 0 0 - 7 8 24 1 22 47.9 7 88 49 - 7 18 16 - 6 58 34 - 7 29 23 - 6 47 29 0.41 -163 0 0 - 7 9 18 1 22 50.9 8 88 48 - 7 19 9 - 6 59 27 - 7 30 16 - 6 48 22 0.42 -162 0 0 - 7 10 32 1 22 54.3 9 87 47 - 7 20 23 - 7 0 41 - 7 31 31 - 6 49 36 0.42 -161 0 0 - 7 12 6 1 22 58.1 10 87 46 - 7 21 58 - 7 2 15 - 7 33 6 - 6 51 10 0.42 -160 0 0 - 7 14 2 1 23 2.3 11 87 45 - 7 23 54 - 7 4 10 - 7 35 2 - 6 53 5 0.43 -159 0 0 - 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38 0 0 -37 8 24 1 58 5.3 29 297 -35 -37 18 26 -36 58 23 -37 29 45 -36 47 7 0.43 - 37 0 0 -37 19 21 1 58 15.0 28 296 -35 -37 29 23 -37 9 21 -37 40 41 -36 58 6 0.43 - 36 0 0 -37 30 2 1 58 24.3 27 295 -35 -37 40 3 -37 20 2 -37 51 20 -37 8 48 0.43 - 35 0 0 -37 40 27 1 58 33.4 26 294 -34 -37 50 27 -37 30 28 -38 1 44 -37 19 14 0.43 - 34 0 0 -37 50 36 1 58 42.2 25 294 -34 -38 0 35 -37 40 37 -38 11 51 -37 29 24 0.43 - 33 0 0 -38 0 28 1 58 50.6 25 293 -34 -38 10 27 -37 50 30 -38 21 42 -37 39 18 0.43 - 32 0 0 -38 10 5 1 58 58.8 24 292 -34 -38 20 3 -38 0 7 -38 31 18 -37 48 55 0.43 - 31 0 0 -38 19 25 1 59 6.7 23 292 -34 -38 29 23 -38 9 28 -38 40 37 -37 58 17 0.44 - 30 0 0 -38 28 29 1 59 14.3 22 291 -34 -38 38 26 -38 18 33 -38 49 40 -38 7 22 0.44 - 29 0 0 -38 37 17 1 59 21.6 21 290 -33 -38 47 14 -38 27 21 -38 58 27 -38 16 11 0.44 - 28 0 0 -38 45 49 1 59 28.6 21 289 -33 -38 55 45 -38 35 54 -39 6 57 -38 24 44 0.44 - 27 0 0 -38 54 5 1 59 35.4 20 289 -33 -39 4 0 -38 44 10 -39 15 12 -38 33 1 0.44 - 26 0 0 -39 2 5 1 59 41.8 19 288 -33 -39 12 0 -38 52 10 -39 23 11 -38 41 2 0.44 - 25 0 0 -39 9 48 1 59 48.0 18 287 -32 -39 19 43 -38 59 54 -39 30 54 -38 48 46 0.44 - 24 0 0 -39 17 16 1 59 53.9 17 287 -32 -39 27 10 -39 7 22 -39 38 20 -38 56 15 0.44 - 23 0 0 -39 24 27 1 59 59.5 17 286 -32 -39 34 21 -39 14 34 -39 45 31 -39 3 27 0.44 - 22 0 0 -39 31 23 2 0 4.8 16 285 -31 -39 41 16 -39 21 30 -39 52 26 -39 10 24 0.44 - 21 0 0 -39 38 2 2 0 9.9 15 285 -31 -39 47 56 -39 28 10 -39 59 4 -39 17 4 0.44 - 20 0 0 -39 44 26 2 0 14.7 14 284 -31 -39 54 19 -39 34 34 -40 5 27 -39 23 28 0.44 - 19 0 0 -39 50 34 2 0 19.2 13 283 -31 -40 0 26 -39 40 42 -40 11 34 -39 29 37 0.44 - 18 0 0 -39 56 26 2 0 23.5 13 283 -30 -40 6 18 -39 46 34 -40 17 25 -39 35 29 0.45 - 17 0 0 -40 2 2 2 0 27.5 12 282 -30 -40 11 53 -39 52 11 -40 23 1 -39 41 6 0.45 - 16 0 0 -40 7 22 2 0 31.2 11 281 -30 -40 17 13 -39 57 31 -40 28 20 -39 46 27 0.45 - 15 0 0 -40 12 26 2 0 34.7 10 281 -29 -40 22 17 -40 2 36 -40 33 24 -39 51 32 0.45 - 14 0 0 -40 17 15 2 0 37.9 10 280 -29 -40 27 6 -40 7 25 -40 38 12 -39 56 21 0.45 - 13 0 0 -40 21 48 2 0 40.9 9 279 -28 -40 31 38 -40 11 58 -40 42 45 -40 0 55 0.45 - 12 0 0 -40 26 5 2 0 43.6 8 279 -28 -40 35 56 -40 16 16 -40 47 1 -40 5 12 0.45 - 11 0 0 -40 30 7 2 0 46.0 7 278 -28 -40 39 57 -40 20 17 -40 51 3 -40 9 14 0.46 - 10 0 0 -40 33 53 2 0 48.2 6 277 -27 -40 43 43 -40 24 4 -40 54 48 -40 13 1 0.46 - 9 0 0 -40 37 24 2 0 50.2 6 277 -27 -40 47 13 -40 27 35 -40 58 19 -40 16 32 0.46 - 8 0 0 -40 40 39 2 0 51.9 5 276 -27 -40 50 28 -40 30 50 -41 1 33 -40 19 47 0.47 - 7 0 0 -40 43 38 2 0 53.3 4 275 -26 -40 53 28 -40 33 49 -41 4 33 -40 22 47 0.47 - 6 0 0 -40 46 22 2 0 54.5 3 275 -26 -40 56 12 -40 36 34 -41 7 17 -40 25 32 0.48 - 5 0 0 -40 48 51 2 0 55.4 3 274 -25 -40 58 41 -40 39 3 -41 9 45 -40 28 1 0.50 - 4 0 0 -40 51 5 2 0 56.2 2 273 -25 -41 0 54 -40 41 16 -41 11 59 -40 30 14 0.52 - 3 0 0 -40 53 3 2 0 56.6 1 273 -24 -41 2 52 -40 43 15 -41 13 57 -40 32 13 0.58 - 2 0 0 -40 54 46 2 0 56.8 0 272 -24 -41 4 35 -40 44 58 -41 15 40 -40 33 56 0.92 Uncertainty in time = +/- 6 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 578-01303-1 * constellation : Pisces * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 23 28 59.2971 DE: +01 16 19.359 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 23 28 59.2969 DE: +01 16 19.358 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.5 * B mag [mag]: 9.0 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1203) Nanna asteroid class: approx. diameter [km]: 33 approx. diameter ["]: 0.030 distance from Earth [AU]: 1.51070 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#55 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): 0.029", 0.002", 70.399° remarks: * orbital elements for (1203)Nanna : Mean anomaly = 344.4875170640 deg Arg. of pericenter = 177.3712780514 deg Long. of node = 224.5011793527 deg Inclination = 5.9975691144 deg Eccentricity = 0.2507391740 Semimajor axis = 2.8826737798 AU Perihelion dist = 2.1598745372 AU Mag: H = 11.67, G = 0.15 Epoch of elements : MJD 60627.07071242 TDT (2024 Nov 13.0707) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,6.54,2024,11,13,1.697110,-0.116979,-0.388592,2.739482,-0.826465,0.004409,0.001658,0.000001,0.000000 -85.5614,1.4102,150.62,-18.05,False TYC 578-01303-1,23.48313809,1.2720443,9.03,8.54,8.28,0.1,0,,23.50447522,1.4101635,6.82,6.63,0,0,0 1203,Nanna,15.35,33.150,1.5107,0,0,1.064,-4.80,,3.0,0 0,344.2719,2024,11,12,177.3713,224.5012,5.9976,0.25074,2.88267,2.15987,11.67,5.0,0.15 1.563,0.0287,0.0019,70,0.0171,Known errors,1.03,0,-1,-1 20241113_1303-1,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:41 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org