IOTA/IOTA-ES occultation update for (4000) Hipparchus / UCAC4 369-181237 event on 2024 Dec 06, 17:01 UT Visible from Summary ------- On 2024 Dec 06 UT, the 18.082 km diameter asteroid (4000) Hipparchus will occult a 11.8 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.92 mag to 18.69 mag (the magnitude of the asteroid) for at most 0.580 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 Dec 06, 16:58 - 2024 Dec 06, 17:05 * geocentric midpoint of event [JD]: 2460651.20956513 * magnitude of target star: 11.77 * magnitude drop [mag]: 6.92 * estimated maximum duration [s]: 0.580 * Moon: 29 % sunlit, 7° distance * Sun: 59° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 18 * 1 sigma uncertainty interval [path widths]: +/- 0.40 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.003", 73°) * approx speed of asteroid's shadow [km/s]: 31.4178 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 369-181237 by 4000 Hipparchus on 2024 Dec 6 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 -106 0 0 - 7 14 8 16 58 26.9 0 106 58 - 7 19 19 - 7 8 57 - 7 23 27 - 7 4 49 .... -105 0 0 - 7 31 19 16 58 26.9 1 106 59 - 7 36 29 - 7 26 8 - 7 40 37 - 7 22 0 -0.03 -104 0 0 - 7 48 7 16 58 27.0 2 106 60 - 7 53 17 - 7 42 57 - 7 57 24 - 7 38 49 -0.10 -103 0 0 - 8 4 33 16 58 27.2 3 106 61 - 8 9 43 - 7 59 23 - 8 13 50 - 7 55 16 -0.12 -102 0 0 - 8 20 37 16 58 27.5 4 106 62 - 8 25 46 - 8 15 27 - 8 29 53 - 8 11 21 -0.14 -101 0 0 - 8 36 18 16 58 27.8 5 106 63 - 8 41 27 - 8 31 9 - 8 45 33 - 8 27 3 -0.15 -100 0 0 - 8 51 36 16 58 28.2 6 105 64 - 8 56 44 - 8 46 28 - 9 0 50 - 8 42 22 -0.15 - 99 0 0 - 9 6 31 16 58 28.6 7 105 65 - 9 11 39 - 9 1 23 - 9 15 44 - 8 57 18 -0.16 - 98 0 0 - 9 21 3 16 58 29.1 8 105 66 - 9 26 10 - 9 15 55 - 9 30 15 - 9 11 50 -0.16 - 97 0 0 - 9 35 11 16 58 29.7 9 105 67 - 9 40 18 - 9 30 4 - 9 44 23 - 9 26 0 -0.16 - 96 0 0 - 9 48 56 16 58 30.3 10 105 68 - 9 54 3 - 9 43 50 - 9 58 7 - 9 39 45 -0.16 - 95 0 0 -10 2 17 16 58 31.0 12 105 68 -10 7 24 - 9 57 11 -10 11 27 - 9 53 7 -0.17 - 94 0 0 -10 15 15 16 58 31.8 13 104 69 -10 20 20 -10 10 9 -10 24 24 -10 6 5 -0.17 - 93 0 0 -10 27 48 16 58 32.6 14 104 70 -10 32 53 -10 22 43 -10 36 56 -10 18 39 -0.17 - 92 0 0 -10 39 57 16 58 33.5 15 104 71 -10 45 2 -10 34 52 -10 49 5 -10 30 49 -0.17 - 91 0 0 -10 51 42 16 58 34.4 16 104 72 -10 56 46 -10 46 37 -11 0 49 -10 42 35 -0.17 - 90 0 0 -11 3 2 16 58 35.4 17 104 73 -11 8 7 -10 57 58 -11 12 9 -10 53 56 -0.17 - 89 0 0 -11 13 59 16 58 36.5 18 104 74 -11 19 2 -11 8 55 -11 23 4 -11 4 52 -0.17 - 88 0 0 -11 24 30 16 58 37.6 19 103 74 -11 29 33 -11 19 27 -11 33 35 -11 15 25 -0.17 - 87 0 0 -11 34 37 16 58 38.8 20 103 75 -11 39 40 -11 29 34 -11 43 41 -11 25 32 -0.17 - 86 0 0 -11 44 19 16 58 40.0 21 103 76 -11 49 22 -11 39 16 -11 53 23 -11 35 15 -0.17 - 85 0 0 -11 53 36 16 58 41.3 22 103 77 -11 58 39 -11 48 34 -12 2 40 -11 44 33 -0.17 - 84 0 0 -12 2 28 16 58 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16 11 16 59 2.9 34 101 79 -13 21 10 -13 11 11 -13 25 9 -13 7 13 -0.18 - 71 0 0 -13 19 34 16 59 5.0 35 101 79 -13 24 34 -13 14 35 -13 28 32 -13 10 36 -0.18 - 70 0 0 -13 22 32 16 59 7.0 36 100 79 -13 27 31 -13 17 32 -13 31 30 -13 13 34 -0.18 - 69 0 0 -13 25 4 16 59 9.1 37 100 78 -13 30 3 -13 20 5 -13 34 1 -13 16 6 -0.18 - 68 0 0 -13 27 10 16 59 11.3 38 100 77 -13 32 9 -13 22 11 -13 36 8 -13 18 13 -0.18 - 67 0 0 -13 28 51 16 59 13.5 39 100 77 -13 33 50 -13 23 52 -13 37 48 -13 19 53 -0.18 - 66 0 0 -13 30 6 16 59 15.8 40 100 76 -13 35 5 -13 25 7 -13 39 3 -13 21 9 -0.18 - 65 0 0 -13 30 55 16 59 18.1 41 100 75 -13 35 54 -13 25 56 -13 39 53 -13 21 58 -0.18 - 64 0 0 -13 31 19 16 59 20.4 42 100 75 -13 36 18 -13 26 20 -13 40 16 -13 22 21 -0.18 - 63 0 0 -13 31 17 16 59 22.8 43 100 74 -13 36 16 -13 26 18 -13 40 14 -13 22 19 -0.18 - 62 0 0 -13 30 49 16 59 25.3 44 100 73 -13 35 48 -13 25 50 -13 39 46 -13 21 51 -0.18 - 61 0 0 -13 29 55 16 59 27.7 45 99 72 -13 34 54 -13 24 56 -13 38 52 -13 20 58 -0.18 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30 6 30 25 6 15 9 6 34 46 -0.18 15 0 0 6 51 45 17 3 45.8 52 233 -5 6 46 18 6 57 13 6 41 57 7 1 34 -0.18 16 0 0 7 18 38 17 3 48.9 51 233 -7 7 13 10 7 24 6 7 8 49 7 28 27 -0.18 17 0 0 7 45 34 17 3 52.0 50 233 -8 7 40 6 7 51 2 7 35 45 7 55 24 -0.18 18 0 0 8 12 34 17 3 55.0 49 234 -9 8 7 5 8 18 2 8 2 44 8 22 23 -0.18 19 0 0 8 39 35 17 3 57.9 48 234 -10 8 34 7 8 45 3 8 29 45 8 49 25 -0.18 20 0 0 9 6 38 17 4 0.8 47 235 -11 9 1 10 9 12 6 8 56 48 9 16 28 -0.18 21 0 0 9 33 41 17 4 3.7 46 235 -12 9 28 13 9 39 10 9 23 51 9 43 32 -0.18 22 0 0 10 0 45 17 4 6.5 45 235 -13 9 55 17 10 6 14 9 50 55 10 10 35 -0.18 23 0 0 10 27 48 17 4 9.2 43 236 -14 10 22 19 10 33 17 10 17 58 10 37 38 -0.18 24 0 0 10 54 49 17 4 11.9 42 236 -15 10 49 21 11 0 18 10 44 59 11 4 40 -0.18 25 0 0 11 21 49 17 4 14.5 41 236 -16 11 16 20 11 27 17 11 11 59 11 31 39 -0.18 26 0 0 11 48 45 17 4 17.0 40 237 -17 11 43 17 11 54 14 11 38 55 11 58 36 -0.18 27 0 0 12 15 38 17 4 19.5 39 237 -19 12 10 10 12 21 7 12 5 48 12 25 29 -0.18 28 0 0 12 42 27 17 4 22.0 38 238 -20 12 36 59 12 47 55 12 32 37 12 52 17 -0.18 29 0 0 13 9 11 17 4 24.3 37 238 -21 13 3 42 13 14 39 12 59 21 13 19 1 -0.18 30 0 0 13 35 49 17 4 26.6 36 238 -22 13 30 21 13 41 17 13 25 59 13 45 39 -0.18 31 0 0 14 2 21 17 4 28.9 35 239 -23 13 56 53 14 7 49 13 52 31 14 12 10 -0.18 32 0 0 14 28 45 17 4 31.1 34 239 -24 14 23 18 14 34 13 14 18 56 14 38 35 -0.18 33 0 0 14 55 3 17 4 33.2 33 239 -25 14 49 35 15 0 30 14 45 14 15 4 52 -0.18 34 0 0 15 21 12 17 4 35.2 32 240 -26 15 15 44 15 26 39 15 11 23 15 31 0 -0.18 35 0 0 15 47 12 17 4 37.2 31 240 -27 15 41 45 15 52 39 15 37 24 15 57 0 -0.18 36 0 0 16 13 2 17 4 39.1 30 240 -28 16 7 35 16 18 29 16 3 15 16 22 50 -0.18 37 0 0 16 38 43 17 4 41.0 29 241 -29 16 33 16 16 44 10 16 28 56 16 48 30 -0.18 38 0 0 17 4 13 17 4 42.7 28 241 -30 16 58 46 17 9 39 16 54 26 17 14 0 -0.18 39 0 0 17 29 32 17 4 44.5 26 241 -31 17 24 5 17 34 58 17 19 45 17 39 18 -0.18 40 0 0 17 54 38 17 4 46.1 25 242 -32 17 49 13 18 0 4 17 44 53 18 4 24 -0.18 41 0 0 18 19 33 17 4 47.7 24 242 -33 18 14 7 18 24 59 18 9 48 18 29 18 -0.18 42 0 0 18 44 15 17 4 49.2 23 242 -34 18 38 49 18 49 40 18 34 30 18 53 59 -0.18 43 0 0 19 8 43 17 4 50.6 22 243 -35 19 3 18 19 14 8 18 58 59 19 18 27 -0.18 44 0 0 19 32 57 17 4 52.0 21 243 -36 19 27 33 19 38 22 19 23 14 19 42 41 -0.18 45 0 0 19 56 58 17 4 53.3 20 243 -37 19 51 34 20 2 22 19 47 15 20 6 40 -0.18 46 0 0 20 20 43 17 4 54.6 19 244 -38 20 15 19 20 26 7 20 11 1 20 30 25 -0.18 47 0 0 20 44 13 17 4 55.7 18 244 -39 20 38 50 20 49 37 20 34 32 20 53 54 -0.18 48 0 0 21 7 28 17 4 56.9 17 245 -40 21 2 5 21 12 51 20 57 48 21 17 8 -0.18 49 0 0 21 30 26 17 4 57.9 16 245 -41 21 25 4 21 35 49 21 20 47 21 40 6 -0.18 50 0 0 21 53 8 17 4 58.9 15 245 -42 21 47 46 21 58 30 21 43 30 22 2 47 -0.18 51 0 0 22 15 34 17 4 59.8 14 246 -43 22 10 12 22 20 55 22 5 56 22 25 12 -0.18 52 0 0 22 37 42 17 5 0.6 13 246 -44 22 32 21 22 43 3 22 28 5 22 47 19 -0.18 53 0 0 22 59 32 17 5 1.4 12 246 -45 22 54 12 23 4 53 22 49 56 23 9 9 -0.18 54 0 0 23 21 5 17 5 2.2 11 247 -46 23 15 45 23 26 25 23 11 30 23 30 41 -0.18 55 0 0 23 42 20 17 5 2.8 10 247 -47 23 37 0 23 47 39 23 32 45 23 51 54 -0.17 56 0 0 24 3 16 17 5 3.4 9 248 -48 23 57 57 24 8 35 23 53 43 24 12 50 -0.17 57 0 0 24 23 53 17 5 3.9 8 248 -49 24 18 35 24 29 12 24 14 21 24 33 26 -0.17 58 0 0 24 44 12 17 5 4.4 7 249 -50 24 38 54 24 49 30 24 34 40 24 53 44 -0.17 59 0 0 25 4 11 17 5 4.8 6 249 -51 24 58 54 25 9 29 24 54 41 25 13 42 -0.17 60 0 0 25 23 51 17 5 5.2 5 249 -52 25 18 34 25 29 9 25 14 22 25 33 22 -0.17 61 0 0 25 43 12 17 5 5.5 4 250 -53 25 37 55 25 48 29 25 33 43 25 52 41 -0.17 62 0 0 26 2 12 17 5 5.7 3 250 -54 25 56 56 26 7 29 25 52 44 26 11 41 -0.17 63 0 0 26 20 53 17 5 5.9 3 251 -55 26 15 37 26 26 9 26 11 26 26 30 20 -0.17 64 0 0 26 39 13 17 5 6.0 2 251 -56 26 33 58 26 44 28 26 29 47 26 48 40 -0.16 65 0 0 26 57 13 17 5 6.1 1 252 -57 26 51 59 27 2 28 26 47 48 27 6 39 -0.14 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 369-181237 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 04 10.6018 DE: -16 12 24.167 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 04 10.6017 DE: -16 12 24.167 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.8 * B mag [mag]: 12.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4000) Hipparchus asteroid class: approx. diameter [km]: 18 approx. diameter ["]: 0.008 distance from Earth [AU]: 3.24940 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): 0.009", 0.003", 72.875° remarks: * orbital elements for (4000)Hipparchus : Mean anomaly = 203.0778491988 deg Arg. of pericenter = 173.9733569668 deg Long. of node = 318.4098030621 deg Inclination = 2.7206174114 deg Eccentricity = 0.1160349948 Semimajor axis = 2.5881759348 AU Perihelion dist = 2.2878569537 AU Mag: H = 12.95, G = 0.15 Epoch of elements : MJD 60650.70956492 TDT (2024 Dec 06.7096) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,0.58,2024,12,6,17.029563,-0.055674,0.171576,16.884379,5.420343,0.004876,0.001498,-0.000001,0.000000 -15.0267,-16.1091,-77.61,-22.60,False UCAC4 369-181237,21.06961164,-16.2067129,12.33,11.77,11.47,0.0,0,,21.09256918,-16.1090952,6.93,6.78,0,0,0 4000,Hipparchus,18.69,18.082,3.2494,0,0,3.171,14.67,,1.4,0 0,202.9099,2024,12,6,173.9734,318.4098,2.7206,0.11603,2.58818,2.28786,12.94,5.0,0.15 1.398,0.0087,0.0031,73,0.0031,Known errors,1.03,0,-1,-1 20241206_181237,60140.73 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:30 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org