IOTA/IOTA-ES occultation update for (901) Brunsia / UCAC4 327-118662 event on 2024 Mar 04, 10:33 UT Visible from Summary ------- On 2024 Mar 04 UT, the 12.554 km diameter asteroid (901) Brunsia will occult a 11.5 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 4.67 mag to 16.11 mag (the magnitude of the asteroid) for at most 0.440 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: 97 * date and approx. time of event: 2024 Mar 04, 10:29 - 2024 Mar 04, 10:37 * geocentric midpoint of event [JD]: 2460373.93988638 * magnitude of target star: 11.45 * magnitude drop [mag]: 4.67 * estimated maximum duration [s]: 0.440 * Moon: 42 % sunlit, 8° distance * Sun: 74° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.38 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.003", 88°) * approx speed of asteroid's shadow [km/s]: 28.8415 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 327-118662 by 901 Brunsia on 2024 Mar 4 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 -133 0 0 13 55 54 10 29 54.8 0 116 -67 13 51 57 13 59 50 13 48 58 14 2 49 .... -132 0 0 13 27 58 10 29 54.9 2 116 -67 13 24 2 13 31 54 13 21 3 13 34 53 -0.09 -131 0 0 13 0 5 10 29 55.0 3 116 -66 12 56 10 13 4 1 12 53 11 13 7 0 -0.18 -130 0 0 12 32 17 10 29 55.2 4 116 -65 12 28 22 12 36 13 12 25 23 12 39 12 -0.21 -129 0 0 12 4 34 10 29 55.6 5 117 -64 12 0 39 12 8 30 11 57 40 12 11 29 -0.23 -128 0 0 11 36 57 10 29 56.0 6 117 -63 11 33 2 11 40 52 11 30 3 11 43 51 -0.24 -127 0 0 11 9 26 10 29 56.5 7 117 -62 11 5 31 11 13 21 11 2 33 11 16 20 -0.25 -126 0 0 10 42 2 10 29 57.0 8 117 -61 10 38 8 10 45 57 10 35 10 10 48 55 -0.26 -125 0 0 10 14 47 10 29 57.7 9 117 -60 10 10 52 10 18 41 10 7 54 10 21 39 -0.26 -124 0 0 9 47 40 10 29 58.4 10 117 -59 9 43 46 9 51 34 9 40 48 9 54 32 -0.27 -123 0 0 9 20 42 10 29 59.2 11 118 -59 9 16 48 9 24 36 9 13 51 9 27 34 -0.27 -122 0 0 8 53 55 10 30 0.1 12 118 -58 8 50 1 8 57 48 8 47 4 9 0 46 -0.27 -121 0 0 8 27 18 10 30 1.1 13 118 -57 8 23 25 8 31 11 8 20 28 8 34 9 -0.28 -120 0 0 8 0 53 10 30 2.1 15 118 -56 7 57 0 8 4 46 7 54 3 8 7 43 -0.28 -119 0 0 7 34 40 10 30 3.3 16 118 -55 7 30 47 7 38 33 7 27 51 7 41 29 -0.28 -118 0 0 7 8 40 10 30 4.5 17 118 -54 7 4 48 7 12 32 7 1 51 7 15 29 -0.28 -117 0 0 6 42 53 10 30 5.8 18 119 -53 6 39 1 6 46 45 6 36 5 6 49 41 -0.28 -116 0 0 6 17 21 10 30 7.2 19 119 -52 6 13 29 6 21 12 6 10 33 6 24 8 -0.28 -115 0 0 5 52 3 10 30 8.6 20 119 -51 5 48 12 5 55 54 5 45 16 5 58 50 -0.28 -114 0 0 5 27 1 10 30 10.1 21 119 -50 5 23 10 5 30 52 5 20 15 5 33 47 -0.29 -113 0 0 5 2 14 10 30 11.8 22 119 -49 4 58 24 5 6 5 4 55 29 5 9 0 -0.29 -112 0 0 4 37 44 10 30 13.4 23 119 -48 4 33 54 4 41 34 4 31 0 4 44 29 -0.29 -111 0 0 4 13 31 10 30 15.2 24 120 -46 4 9 42 4 17 21 4 6 48 4 20 16 -0.29 -110 0 0 3 49 36 10 30 17.0 25 120 -45 3 45 47 3 53 26 3 42 53 3 56 20 -0.29 -109 0 0 3 25 59 10 30 18.9 26 120 -44 3 22 10 3 29 48 3 19 17 3 32 42 -0.29 -108 0 0 3 2 41 10 30 20.9 27 120 -43 2 58 53 3 6 30 2 55 59 3 9 23 -0.29 -107 0 0 2 39 42 10 30 22.9 28 120 -42 2 35 54 2 43 30 2 33 1 2 46 23 -0.29 -106 0 0 2 17 3 10 30 25.0 30 120 -41 2 13 15 2 20 50 2 10 22 2 23 43 -0.29 -105 0 0 1 54 43 10 30 27.2 31 120 -40 1 50 56 1 58 31 1 48 4 2 1 23 -0.29 -104 0 0 1 32 45 10 30 29.4 32 121 -39 1 28 58 1 36 32 1 26 6 1 39 24 -0.29 -103 0 0 1 11 7 10 30 31.7 33 121 -38 1 7 21 1 14 54 1 4 29 1 17 45 -0.29 -102 0 0 0 49 51 10 30 34.1 34 121 -37 0 46 5 0 53 37 0 43 13 0 56 29 -0.29 -101 0 0 0 28 56 10 30 36.5 35 121 -36 0 25 11 0 32 42 0 22 20 0 35 33 -0.29 -100 0 0 0 8 24 10 30 39.0 36 121 -35 0 4 39 0 12 10 0 1 48 0 15 1 -0.29 - 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5 11 1 - 5 3 46 - 5 13 47 - 5 1 0 -0.30 - 27 0 0 - 4 54 52 10 34 58.6 59 227 39 - 4 58 31 - 4 51 14 - 5 1 16 - 4 48 28 -0.30 - 26 0 0 - 4 41 54 10 35 2.2 58 228 40 - 4 45 33 - 4 38 16 - 4 48 19 - 4 35 30 -0.30 - 25 0 0 - 4 28 29 10 35 5.8 58 229 41 - 4 32 8 - 4 24 51 - 4 34 54 - 4 22 4 -0.30 - 24 0 0 - 4 14 38 10 35 9.3 57 229 42 - 4 18 17 - 4 10 59 - 4 21 3 - 4 8 12 -0.30 - 23 0 0 - 4 0 20 10 35 12.8 56 230 43 - 4 3 59 - 3 56 40 - 4 6 46 - 3 53 53 -0.30 - 22 0 0 - 3 45 35 10 35 16.2 55 231 44 - 3 49 15 - 3 41 55 - 3 52 2 - 3 39 8 -0.30 - 21 0 0 - 3 30 25 10 35 19.6 54 231 45 - 3 34 5 - 3 26 44 - 3 36 52 - 3 23 57 -0.30 - 20 0 0 - 3 14 48 10 35 23.0 53 232 46 - 3 18 29 - 3 11 7 - 3 21 16 - 3 8 20 -0.30 - 19 0 0 - 2 58 46 10 35 26.4 52 232 47 - 3 2 27 - 2 55 5 - 3 5 14 - 2 52 17 -0.30 - 18 0 0 - 2 42 18 10 35 29.7 51 233 48 - 2 45 59 - 2 38 36 - 2 48 47 - 2 35 48 -0.30 - 17 0 0 - 2 25 24 10 35 32.9 50 233 49 - 2 29 6 - 2 21 42 - 2 31 54 - 2 18 54 -0.30 - 16 0 0 - 2 8 6 10 35 36.2 49 233 50 - 2 11 48 - 2 4 23 - 2 14 37 - 2 1 35 -0.30 - 15 0 0 - 1 50 22 10 35 39.4 48 234 51 - 1 54 5 - 1 46 40 - 1 56 54 - 1 43 51 -0.30 - 14 0 0 - 1 32 14 10 35 42.5 47 234 52 - 1 35 57 - 1 28 31 - 1 38 47 - 1 25 42 -0.30 - 13 0 0 - 1 13 42 10 35 45.6 46 235 53 - 1 17 25 - 1 9 58 - 1 20 15 - 1 7 9 -0.30 - 12 0 0 - 0 54 45 10 35 48.7 45 235 54 - 0 58 29 - 0 51 2 - 1 1 19 - 0 48 12 -0.30 - 11 0 0 - 0 35 25 10 35 51.7 44 235 55 - 0 39 9 - 0 31 41 - 0 42 0 - 0 28 51 -0.30 - 10 0 0 - 0 15 42 10 35 54.6 43 235 56 - 0 19 26 - 0 11 57 - 0 22 17 - 0 9 6 -0.30 - 9 0 0 0 4 25 10 35 57.5 42 236 57 0 0 40 0 8 10 - 0 2 11 0 11 1 -0.30 - 8 0 0 0 24 55 10 36 0.4 41 236 57 0 21 9 0 28 40 0 18 18 0 31 32 -0.30 - 7 0 0 0 45 47 10 36 3.2 40 236 58 0 42 1 0 49 33 0 39 9 0 52 24 -0.30 - 6 0 0 1 7 1 10 36 5.9 39 236 59 1 3 14 1 10 47 1 0 23 1 13 39 -0.30 - 5 0 0 1 28 36 10 36 8.6 38 237 60 1 24 49 1 32 23 1 21 57 1 35 15 -0.30 - 4 0 0 1 50 33 10 36 11.2 37 237 61 1 46 46 1 54 20 1 43 53 1 57 13 -0.30 - 3 0 0 2 12 51 10 36 13.8 36 237 62 2 9 3 2 16 38 2 6 10 2 19 31 -0.30 - 2 0 0 2 35 28 10 36 16.3 35 237 63 2 31 40 2 39 17 2 28 47 2 42 10 -0.30 - 1 0 0 2 58 26 10 36 18.7 34 238 64 2 54 38 3 2 15 2 51 44 3 5 8 -0.30 - 0 0 0 3 21 43 10 36 21.1 33 238 64 3 17 54 3 25 32 3 15 1 3 28 26 -0.30 1 0 0 3 45 19 10 36 23.4 32 238 65 3 41 30 3 49 9 3 38 36 3 52 3 -0.30 2 0 0 4 9 14 10 36 25.7 30 238 66 4 5 24 4 13 3 4 2 30 4 15 58 -0.30 3 0 0 4 33 26 10 36 27.8 29 238 67 4 29 36 4 37 16 4 26 41 4 40 11 -0.30 4 0 0 4 57 55 10 36 30.0 28 238 67 4 54 5 5 1 46 4 51 10 5 4 41 -0.30 5 0 0 5 22 41 10 36 32.0 27 239 68 5 18 50 5 26 32 5 15 55 5 29 28 -0.30 6 0 0 5 47 44 10 36 34.0 26 239 69 5 43 52 5 51 35 5 40 57 5 54 31 -0.30 7 0 0 6 13 1 10 36 35.9 25 239 69 6 9 10 6 16 53 6 6 14 6 19 49 -0.30 8 0 0 6 38 34 10 36 37.7 24 239 70 6 34 42 6 42 26 6 31 46 6 45 22 -0.30 9 0 0 7 4 21 10 36 39.4 23 239 70 7 0 29 7 8 14 6 57 33 7 11 10 -0.30 10 0 0 7 30 22 10 36 41.1 22 240 71 7 26 29 7 34 15 7 23 33 7 37 12 -0.30 11 0 0 7 56 36 10 36 42.7 21 240 71 7 52 43 8 0 29 7 49 46 8 3 26 -0.30 12 0 0 8 23 2 10 36 44.2 20 240 71 8 19 9 8 26 56 8 16 12 8 29 53 -0.30 13 0 0 8 49 40 10 36 45.6 19 240 72 8 45 46 8 53 34 8 42 49 8 56 31 -0.30 14 0 0 9 16 29 10 36 47.0 18 240 72 9 12 35 9 20 23 9 9 37 9 23 21 -0.30 15 0 0 9 43 28 10 36 48.3 16 241 72 9 39 34 9 47 22 9 36 36 9 50 20 -0.30 16 0 0 10 10 37 10 36 49.5 15 241 72 10 6 42 10 14 31 10 3 44 10 17 29 -0.30 17 0 0 10 37 54 10 36 50.6 14 241 72 10 33 59 10 41 49 10 31 1 10 44 47 -0.30 18 0 0 11 5 20 10 36 51.6 13 241 72 11 1 25 11 9 15 10 58 26 11 12 13 -0.30 19 0 0 11 32 53 10 36 52.6 12 241 72 11 28 58 11 36 48 11 25 59 11 39 47 -0.30 20 0 0 12 0 32 10 36 53.5 11 242 72 11 56 37 12 4 28 11 53 38 12 7 27 -0.30 21 0 0 12 28 18 10 36 54.3 10 242 71 12 24 22 12 32 14 12 21 23 12 35 13 -0.30 22 0 0 12 56 9 10 36 55.0 9 242 71 12 52 13 13 0 5 12 49 14 13 3 4 -0.30 23 0 0 13 24 4 10 36 55.6 8 242 70 13 20 8 13 28 0 13 17 8 13 30 59 -0.30 24 0 0 13 52 2 10 36 56.2 7 242 70 13 48 6 13 55 59 13 45 7 13 58 58 -0.30 25 0 0 14 20 4 10 36 56.6 6 243 70 14 16 7 14 24 0 14 13 8 14 27 0 -0.30 26 0 0 14 48 7 10 36 57.0 5 243 69 14 44 11 14 52 4 14 41 11 14 55 3 -0.30 27 0 0 15 16 12 10 36 57.3 3 243 68 15 12 15 15 20 9 15 9 16 15 23 9 -0.30 28 0 0 15 44 17 10 36 57.5 2 243 68 15 40 21 15 48 14 15 37 21 15 51 14 -0.30 29 0 0 16 12 23 10 36 57.7 1 244 67 16 8 26 16 16 20 16 5 26 16 19 19 -0.30 30 0 0 16 40 27 10 36 57.7 0 244 66 16 36 30 16 44 24 16 33 30 16 47 24 -0.30 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: UCAC4 327-118662 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 58 59.9093 DE: -24 42 25.930 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 58 59.9096 DE: -24 42 25.930 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.600,0.400) * V mag [mag]: 11.5 * B mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (901) Brunsia asteroid class: approx. diameter [km]: 13 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.16220 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 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): 0.011", 0.003", 88° remarks: * orbital elements for (901)Brunsia : Mean anomaly = 294.6801790374 deg Arg. of pericenter = 68.3519432752 deg Long. of node = 265.0294972863 deg Inclination = 3.4455239690 deg Eccentricity = 0.2204716395 Semimajor axis = 2.2246435017 AU Perihelion dist = 1.7341727016 AU Mag: H = 11.60, G = 0.15 Epoch of elements : MJD 60373.43988617 TDT (2024 Mar 04.4399) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512023Apr24,0.44,2024,3,4,10.557273,-0.007800,0.291539,16.273585,0.417546,-0.005288,-0.000034,-0.000001,0.000000 -50.9219,-24.7098,24.54,-6.16,False UCAC4 327-118662,17.98330810,-24.7072028,11.91,11.45,11.20,0.0,0,,18.00787316,-24.7097535,4.68,4.48,0,0,0 901,Brunsia,16.11,12.554,2.1622,0,0,4.858,1.70,,1.0,0 0,294.5495,2024,3,4,68.3519,265.0295,3.4455,0.22047,2.22464,1.73417,11.60,5.0,0.15 1.379,0.0107,0.0030,88,0.0031,Known errors,2.39,0,-1,-1 20240304_118662,60139.21 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org