IOTA/IOTA-ES occultation update for (4804) Pasteur / UCAC4 404-134018 event on 2024 Jun 17, 06:08 UT Visible from Summary ------- On 2024 Jun 17 UT, the 18.452 km diameter asteroid (4804) Pasteur will occult a 11.5 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 5.48 mag to 16.99 mag (the magnitude of the asteroid) for at most 1.060 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: 98 * date and approx. time of event: 2024 Jun 17, 06:01 - 2024 Jun 17, 06:14 * geocentric midpoint of event [JD]: 2460478.75556804 * magnitude of target star: 11.52 * magnitude drop [mag]: 5.48 * estimated maximum duration [s]: 1.060 * Moon: 77 % sunlit, 143° distance * Sun: 94° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 19 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 1.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.002", 69°) * approx speed of asteroid's shadow [km/s]: 17.4442 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 404-134018 by 4804 Pasteur on 2024 Jun 17 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 - 90 0 0 - 0 52 34 6 1 59.1 0 99 -67 - 0 57 40 - 0 47 27 - 1 1 16 - 0 43 51 .... - 89 0 0 - 1 2 10 6 1 59.2 1 99 -68 - 1 7 16 - 0 57 3 - 1 10 51 - 0 53 27 -0.04 - 88 0 0 - 1 11 36 6 1 59.4 2 99 -68 - 1 16 42 - 1 6 30 - 1 20 18 - 1 2 54 -0.07 - 87 0 0 - 1 20 53 6 1 59.7 3 99 -68 - 1 25 59 - 1 15 47 - 1 29 35 - 1 12 11 -0.09 - 86 0 0 - 1 30 0 6 2 0.2 4 99 -68 - 1 35 6 - 1 24 54 - 1 38 42 - 1 21 19 -0.10 - 85 0 0 - 1 38 58 6 2 0.7 6 99 -68 - 1 44 4 - 1 33 52 - 1 47 39 - 1 30 17 -0.10 - 84 0 0 - 1 47 45 6 2 1.4 7 99 -68 - 1 52 51 - 1 42 39 - 1 56 26 - 1 39 4 -0.11 - 83 0 0 - 1 56 22 6 2 2.2 8 99 -67 - 2 1 28 - 1 51 17 - 2 5 3 - 1 47 41 -0.11 - 82 0 0 - 2 4 49 6 2 3.1 9 99 -67 - 2 9 55 - 1 59 43 - 2 13 30 - 1 56 8 -0.11 - 81 0 0 - 2 13 5 6 2 4.2 10 99 -67 - 2 18 11 - 2 8 0 - 2 21 46 - 2 4 25 -0.11 - 80 0 0 - 2 21 11 6 2 5.3 11 99 -67 - 2 26 16 - 2 16 5 - 2 29 51 - 2 12 31 -0.11 - 79 0 0 - 2 29 5 6 2 6.5 12 99 -66 - 2 34 11 - 2 24 0 - 2 37 45 - 2 20 25 -0.12 - 78 0 0 - 2 36 49 6 2 7.9 13 99 -66 - 2 41 54 - 2 31 44 - 2 45 29 - 2 28 9 -0.12 - 77 0 0 - 2 44 21 6 2 9.4 14 99 -66 - 2 49 26 - 2 39 16 - 2 53 1 - 2 35 42 -0.12 - 76 0 0 - 2 51 43 6 2 11.0 15 99 -65 - 2 56 47 - 2 46 38 - 3 0 22 - 2 43 3 -0.12 - 75 0 0 - 2 58 52 6 2 12.7 16 99 -65 - 3 3 57 - 2 53 47 - 3 7 31 - 2 50 13 -0.12 - 74 0 0 - 3 5 50 6 2 14.5 17 99 -64 - 3 10 55 - 3 0 46 - 3 14 29 - 2 57 11 -0.12 - 73 0 0 - 3 12 37 6 2 16.4 18 99 -64 - 3 17 41 - 3 7 32 - 3 21 16 - 3 3 58 -0.12 - 72 0 0 - 3 19 11 6 2 18.4 19 99 -63 - 3 24 16 - 3 14 7 - 3 27 50 - 3 10 33 -0.12 - 71 0 0 - 3 25 34 6 2 20.6 20 99 -63 - 3 30 38 - 3 20 29 - 3 34 12 - 3 16 55 -0.12 - 70 0 0 - 3 31 44 6 2 22.8 21 98 -62 - 3 36 49 - 3 26 40 - 3 40 23 - 3 23 6 -0.12 - 69 0 0 - 3 37 43 6 2 25.2 22 98 -61 - 3 42 47 - 3 32 38 - 3 46 21 - 3 29 4 -0.12 - 68 0 0 - 3 43 28 6 2 27.6 23 98 -61 - 3 48 32 - 3 38 24 - 3 52 6 - 3 34 50 -0.12 - 67 0 0 - 3 49 2 6 2 30.2 24 98 -60 - 3 54 6 - 3 43 58 - 3 57 40 - 3 40 24 -0.12 - 66 0 0 - 3 54 23 6 2 32.9 25 98 -59 - 3 59 27 - 3 49 19 - 4 3 0 - 3 45 45 -0.12 - 65 0 0 - 3 59 31 6 2 35.7 26 98 -59 - 4 4 35 - 3 54 27 - 4 8 9 - 3 50 53 -0.12 - 64 0 0 - 4 4 27 6 2 38.5 27 98 -58 - 4 9 30 - 3 59 23 - 4 13 4 - 3 55 49 -0.12 - 63 0 0 - 4 9 9 6 2 41.5 28 98 -57 - 4 14 13 - 4 4 6 - 4 17 46 - 4 0 32 -0.12 - 62 0 0 - 4 13 39 6 2 44.6 29 98 -57 - 4 18 43 - 4 8 35 - 4 22 16 - 4 5 2 -0.12 - 61 0 0 - 4 17 56 6 2 47.8 30 98 -56 - 4 22 59 - 4 12 52 - 4 26 33 - 4 9 19 -0.12 - 60 0 0 - 4 21 59 6 2 51.1 31 98 -55 - 4 27 3 - 4 16 56 - 4 30 36 - 4 13 22 -0.12 - 59 0 0 - 4 25 50 6 2 54.5 32 98 -54 - 4 30 53 - 4 20 46 - 4 34 26 - 4 17 13 -0.12 - 58 0 0 - 4 29 27 6 2 58.0 33 98 -53 - 4 34 30 - 4 24 24 - 4 38 3 - 4 20 50 -0.12 - 57 0 0 - 4 32 51 6 3 1.5 34 98 -53 - 4 37 54 - 4 27 47 - 4 41 27 - 4 24 14 -0.12 - 56 0 0 - 4 36 1 6 3 5.2 35 98 -52 - 4 41 4 - 4 30 58 - 4 44 37 - 4 27 24 -0.13 - 55 0 0 - 4 38 58 6 3 9.0 36 98 -51 - 4 44 1 - 4 33 55 - 4 47 34 - 4 30 21 -0.13 - 54 0 0 - 4 41 41 6 3 12.9 37 98 -50 - 4 46 44 - 4 36 38 - 4 50 18 - 4 33 5 -0.13 - 53 0 0 - 4 44 11 6 3 16.8 38 98 -49 - 4 49 14 - 4 39 8 - 4 52 47 - 4 35 35 -0.13 - 52 0 0 - 4 46 27 6 3 20.9 39 98 -48 - 4 51 30 - 4 41 24 - 4 55 3 - 4 37 51 -0.13 - 51 0 0 - 4 48 30 6 3 25.0 40 98 -48 - 4 53 32 - 4 43 27 - 4 57 6 - 4 39 53 -0.13 - 50 0 0 - 4 50 18 6 3 29.2 41 98 -47 - 4 55 21 - 4 45 15 - 4 58 54 - 4 41 42 -0.13 - 49 0 0 - 4 51 53 6 3 33.6 42 98 -46 - 4 56 56 - 4 46 50 - 5 0 29 - 4 43 17 -0.13 - 48 0 0 - 4 53 14 6 3 38.0 43 98 -45 - 4 58 17 - 4 48 11 - 5 1 50 - 4 44 38 -0.13 - 47 0 0 - 4 54 21 6 3 42.4 44 98 -44 - 4 59 24 - 4 49 18 - 5 2 57 - 4 45 45 -0.13 - 46 0 0 - 4 55 14 6 3 47.0 45 98 -43 - 5 0 17 - 4 50 12 - 5 3 50 - 4 46 39 -0.13 - 45 0 0 - 4 55 54 6 3 51.7 46 98 -42 - 5 0 57 - 4 50 51 - 5 4 30 - 4 47 18 -0.13 - 44 0 0 - 4 56 19 6 3 56.4 47 98 -41 - 5 1 22 - 4 51 16 - 5 4 55 - 4 47 43 -0.13 - 43 0 0 - 4 56 31 6 4 1.2 48 98 -40 - 5 1 33 - 4 51 28 - 5 5 6 - 4 47 55 -0.13 - 42 0 0 - 4 56 28 6 4 6.1 49 98 -40 - 5 1 31 - 4 51 25 - 5 5 4 - 4 47 52 -0.13 - 41 0 0 - 4 56 11 6 4 11.1 50 98 -39 - 5 1 14 - 4 51 9 - 5 4 47 - 4 47 35 -0.13 - 40 0 0 - 4 55 41 6 4 16.1 51 99 -38 - 5 0 44 - 4 50 38 - 5 4 17 - 4 47 5 -0.13 - 39 0 0 - 4 54 56 6 4 21.3 52 99 -37 - 4 59 59 - 4 49 53 - 5 3 32 - 4 46 20 -0.13 - 38 0 0 - 4 53 57 6 4 26.5 53 99 -36 - 4 59 0 - 4 48 55 - 5 2 33 - 4 45 21 -0.13 - 37 0 0 - 4 52 45 6 4 31.7 54 99 -35 - 4 57 48 - 4 47 42 - 5 1 21 - 4 44 9 -0.13 - 36 0 0 - 4 51 18 6 4 37.1 55 99 -34 - 4 56 21 - 4 46 15 - 4 59 54 - 4 42 42 -0.13 - 35 0 0 - 4 49 37 6 4 42.5 56 99 -33 - 4 54 40 - 4 44 34 - 4 58 13 - 4 41 1 -0.13 - 34 0 0 - 4 47 43 6 4 47.9 57 99 -32 - 4 52 46 - 4 42 40 - 4 56 19 - 4 39 6 -0.13 - 33 0 0 - 4 45 34 6 4 53.5 58 100 -31 - 4 50 37 - 4 40 31 - 4 54 10 - 4 36 58 -0.13 - 32 0 0 - 4 43 11 6 4 59.1 59 100 -30 - 4 48 14 - 4 38 8 - 4 51 48 - 4 34 35 -0.13 - 31 0 0 - 4 40 35 6 5 4.7 60 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24 -0.13 20 0 0 2 5 43 6 10 29.2 65 243 21 2 0 34 2 10 52 1 56 57 2 14 29 -0.13 21 0 0 2 17 53 6 10 35.2 64 244 22 2 12 44 2 23 2 2 9 7 2 26 40 -0.13 22 0 0 2 30 10 6 10 41.3 63 244 23 2 25 1 2 35 19 2 21 24 2 38 57 -0.13 23 0 0 2 42 32 6 10 47.2 62 245 24 2 37 23 2 47 41 2 33 46 2 51 19 -0.13 24 0 0 2 55 0 6 10 53.1 61 245 25 2 49 51 3 0 9 2 46 14 3 3 47 -0.13 25 0 0 3 7 33 6 10 59.0 60 246 26 3 2 24 3 12 43 2 58 47 3 16 20 -0.13 26 0 0 3 20 11 6 11 4.7 59 246 27 3 15 2 3 25 21 3 11 24 3 28 58 -0.13 27 0 0 3 32 54 6 11 10.5 58 247 28 3 27 45 3 38 4 3 24 7 3 41 41 -0.13 28 0 0 3 45 41 6 11 16.1 57 247 29 3 40 32 3 50 51 3 36 54 3 54 29 -0.13 29 0 0 3 58 32 6 11 21.7 56 247 30 3 53 23 4 3 42 3 49 45 4 7 20 -0.13 30 0 0 4 11 27 6 11 27.2 55 248 31 4 6 18 4 16 37 4 2 40 4 20 15 -0.12 31 0 0 4 24 26 6 11 32.7 54 248 32 4 19 16 4 29 36 4 15 39 4 33 14 -0.12 32 0 0 4 37 28 6 11 38.0 53 248 34 4 32 18 4 42 38 4 28 40 4 46 16 -0.12 33 0 0 4 50 33 6 11 43.3 52 249 35 4 45 23 4 55 43 4 41 45 4 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3 15 10 49 19 11 6 53 -0.12 62 0 0 11 10 37 6 13 37.3 22 255 63 11 5 27 11 15 46 11 1 50 11 19 23 -0.12 63 0 0 11 23 2 6 13 39.7 21 255 64 11 17 53 11 28 11 11 14 16 11 31 49 -0.12 64 0 0 11 35 22 6 13 42.0 20 256 65 11 30 13 11 40 32 11 26 36 11 44 9 -0.12 65 0 0 11 47 37 6 13 44.2 19 256 66 11 42 28 11 52 46 11 38 51 11 56 24 -0.12 66 0 0 11 59 46 6 13 46.2 18 256 67 11 54 37 12 4 55 11 51 0 12 8 32 -0.12 67 0 0 12 11 49 6 13 48.2 17 256 68 12 6 40 12 16 58 12 3 3 12 20 35 -0.12 68 0 0 12 23 45 6 13 50.0 16 257 69 12 18 37 12 28 54 12 15 0 12 32 31 -0.12 69 0 0 12 35 36 6 13 51.7 15 257 70 12 30 27 12 40 44 12 26 50 12 44 21 -0.12 70 0 0 12 47 19 6 13 53.3 14 257 71 12 42 11 12 52 28 12 38 34 12 56 5 -0.12 71 0 0 12 58 56 6 13 54.8 13 257 72 12 53 47 13 4 4 12 50 11 13 7 41 -0.12 72 0 0 13 10 25 6 13 56.2 12 257 73 13 5 17 13 15 34 13 1 40 13 19 11 -0.12 73 0 0 13 21 48 6 13 57.5 11 258 73 13 16 40 13 26 56 13 13 3 13 30 33 -0.12 74 0 0 13 33 2 6 13 58.7 10 258 74 13 27 55 13 38 11 13 24 18 13 41 47 -0.12 75 0 0 13 44 10 6 13 59.7 9 258 75 13 39 2 13 49 18 13 35 25 13 52 54 -0.12 76 0 0 13 55 9 6 14 0.7 8 258 76 13 50 1 14 0 17 13 46 25 14 3 53 -0.12 77 0 0 14 6 0 6 14 1.5 7 259 77 14 0 53 14 11 8 13 57 16 14 14 45 -0.12 78 0 0 14 16 44 6 14 2.2 6 259 78 14 11 36 14 21 51 14 8 0 14 25 28 -0.12 79 0 0 14 27 18 6 14 2.8 5 259 78 14 22 11 14 32 26 14 18 35 14 36 2 -0.12 80 0 0 14 37 45 6 14 3.3 4 259 79 14 32 38 14 42 52 14 29 1 14 46 28 -0.12 81 0 0 14 48 2 6 14 3.7 3 260 80 14 42 55 14 53 10 14 39 19 14 56 46 -0.12 82 0 0 14 58 11 6 14 4.0 2 260 80 14 53 4 15 3 18 14 49 28 15 6 54 -0.12 83 0 0 15 8 11 6 14 4.2 1 260 81 15 3 4 15 13 18 14 59 28 15 16 54 -0.12 84 0 0 15 18 2 6 14 4.3 0 260 81 15 12 55 15 23 8 15 9 19 15 26 44 -0.11 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: UCAC4 404-134018 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 23 43 27.6335 DE: -09 17 48.836 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 23 43 27.6340 DE: -09 17 48.833 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.5 * B mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4804) Pasteur asteroid class: approx. diameter [km]: 18 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.17800 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 25 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): 0.016", 0.002", 69.1° remarks: * orbital elements for (4804)Pasteur : Mean anomaly = 321.7473941046 deg Arg. of pericenter = 272.4165446590 deg Long. of node = 103.4418772502 deg Inclination = 8.6388501231 deg Eccentricity = 0.1159936315 Semimajor axis = 2.6908915532 AU Perihelion dist = 2.3787652700 AU Mag: H = 12.21, G = 0.15 Epoch of elements : MJD 60478.25556776 TDT (2024 Jun 17.2556) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr25,1.06,2024,6,17,6.133633,-0.019605,0.125708,9.747331,1.390503,-0.004965,-0.002115,0.000000,0.000000 -1.8173,-9.1609,88.25,23.39,False UCAC4 404-134018,23.72434261,-9.2968989,11.98,11.52,11.27,0.0,0,,23.74529936,-9.1608948,5.48,5.28,0,0,0 4804,Pasteur,16.99,18.452,2.1780,0,0,2.658,5.62,,1.0,0 0,321.6903,2024,6,17,272.4165,103.4419,8.6389,0.11599,2.69089,2.37877,12.21,5.0,0.15 1.352,0.0160,0.0022,69,0.0041,Known errors,1.05,0,-1,-1 20240617_134018,60139.39 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 09:19 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org