IOTA/IOTA-ES occultation update for (679) Pax / UCAC4 452-019223 event on 2024 Nov 23, 17:14 UT Visible from Summary ------- On 2024 Nov 23 UT, the 55.8866038198493 km diameter asteroid (679) Pax will occult a 9.8 mag star in the constellation Monoceros for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.32 mag to 12.00 mag (the magnitude of the asteroid) for at most 7.640 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: 73 * date and approx. time of event: 2024 Nov 23, 17:00 - 2024 Nov 23, 17:28 * geocentric midpoint of event [JD]: 2460638.21835667 * magnitude of target star: 9.82 * magnitude drop [mag]: 2.32 * estimated maximum duration [s]: 7.640 * Moon: 44 % sunlit, 63° distance * Sun: 137° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 60 * 1 sigma uncertainty interval [path widths]: +/- 0.79 * 1 sigma uncertainty interval [seconds]: +/- 3.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.049, +/- 0.034) * 1 sigma uncertainty ellipse (major, minor, PA): (0.056", 0.022", 60°) * approx speed of asteroid's shadow [km/s]: 7.4405 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 452-019223 by 679 Pax on 2024 Nov 23 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 44 0 0 18 30 39 17 27 56.5 1 90 -42 18 46 55 18 14 23 19 12 29 17 48 40 .... 45 0 0 18 30 14 17 27 56.2 2 90 -43 18 46 29 18 13 57 19 12 3 17 48 15 0.25 46 0 0 18 29 10 17 27 55.7 3 90 -44 18 45 26 18 12 54 19 10 59 17 47 11 0.28 47 0 0 18 27 29 17 27 54.9 4 91 -45 18 43 44 18 11 12 19 9 18 17 45 29 0.30 48 0 0 18 25 9 17 27 53.8 4 91 -46 18 41 25 18 8 52 19 6 59 17 43 9 0.31 49 0 0 18 22 12 17 27 52.5 5 91 -47 18 38 28 18 5 54 19 4 2 17 40 11 0.31 50 0 0 18 18 36 17 27 51.0 6 92 -48 18 34 53 18 2 18 19 0 28 17 36 34 0.32 51 0 0 18 14 23 17 27 49.2 7 92 -49 18 30 40 17 58 5 18 56 17 17 32 19 0.32 52 0 0 18 9 32 17 27 47.2 8 92 -50 18 25 50 17 53 13 18 51 27 17 27 27 0.32 53 0 0 18 4 4 17 27 44.9 9 93 -51 18 20 22 17 47 44 18 46 1 17 21 56 0.32 54 0 0 17 57 58 17 27 42.4 10 93 -52 18 14 17 17 41 37 18 39 57 17 15 47 0.32 55 0 0 17 51 14 17 27 39.6 11 93 -52 18 7 34 17 34 52 18 33 16 17 9 1 0.32 56 0 0 17 43 52 17 27 36.6 12 94 -53 18 0 14 17 27 29 18 25 58 17 1 36 0.33 57 0 0 17 35 54 17 27 33.4 13 94 -54 17 52 17 17 19 29 18 18 2 16 53 34 0.33 58 0 0 17 27 17 17 27 29.9 14 94 -55 17 43 41 17 10 51 18 9 29 16 44 54 0.33 59 0 0 17 18 3 17 27 26.1 15 94 -56 17 34 29 17 1 35 18 0 19 16 35 36 0.33 60 0 0 17 8 11 17 27 22.1 16 95 -57 17 24 39 16 51 42 17 50 32 16 25 40 0.33 61 0 0 16 57 42 17 27 17.9 17 95 -58 17 14 11 16 41 11 17 40 7 16 15 7 0.33 62 0 0 16 46 35 17 27 13.4 18 95 -59 17 3 6 16 30 3 17 29 5 16 3 55 0.33 63 0 0 16 34 51 17 27 8.7 19 95 -60 16 51 24 16 18 16 17 17 25 15 52 6 0.33 64 0 0 16 22 29 17 27 3.7 20 96 -60 16 39 4 16 5 52 17 5 9 15 39 39 0.33 65 0 0 16 9 29 17 26 58.4 21 96 -61 16 26 6 15 52 51 16 52 14 15 26 33 0.33 66 0 0 15 55 52 17 26 52.9 22 96 -62 16 12 31 15 39 11 16 38 43 15 12 50 0.33 67 0 0 15 41 37 17 26 47.2 23 96 -63 15 58 19 15 24 54 16 24 34 14 58 29 0.33 68 0 0 15 26 44 17 26 41.2 23 96 -64 15 43 29 15 9 59 16 9 47 14 43 30 0.33 69 0 0 15 11 14 17 26 34.9 24 97 -65 15 28 1 14 54 26 15 54 24 14 27 54 0.32 70 0 0 14 55 6 17 26 28.4 25 97 -65 15 11 55 14 38 15 15 38 22 14 11 39 0.32 71 0 0 14 38 20 17 26 21.7 26 97 -66 14 55 12 14 21 26 15 21 43 13 54 46 0.32 72 0 0 14 20 56 17 26 14.7 27 97 -67 14 37 51 14 4 0 15 4 27 13 37 15 0.32 73 0 0 14 2 55 17 26 7.4 28 97 -68 14 19 52 13 45 56 14 46 33 13 19 6 0.32 74 0 0 13 44 16 17 25 59.8 29 97 -69 14 1 16 13 27 13 14 28 1 13 0 19 0.32 75 0 0 13 24 59 17 25 52.0 30 98 -69 13 42 2 13 7 53 14 8 52 12 40 54 0.32 76 0 0 13 5 4 17 25 44.0 31 98 -70 13 22 10 12 47 55 13 49 5 12 20 51 0.32 77 0 0 12 44 31 17 25 35.7 32 98 -71 13 1 41 12 27 19 13 28 41 12 0 10 0.32 78 0 0 12 23 21 17 25 27.1 33 98 -71 12 40 34 12 6 6 13 7 39 11 38 51 0.32 79 0 0 12 1 32 17 25 18.3 34 98 -72 12 18 49 11 44 14 12 45 59 11 16 54 0.32 80 0 0 11 39 6 17 25 9.2 35 98 -73 11 56 27 11 21 45 12 23 42 10 54 19 0.32 81 0 0 11 16 3 17 24 59.8 36 98 -73 11 33 27 10 58 37 12 0 47 10 31 6 0.32 82 0 0 10 52 22 17 24 50.2 37 98 -74 11 9 49 10 34 53 11 37 16 10 7 16 0.32 83 0 0 10 28 3 17 24 40.3 38 98 -74 10 45 34 10 10 31 11 13 6 9 42 48 0.32 84 0 0 10 3 7 17 24 30.1 39 98 -75 10 20 42 9 45 31 10 48 20 9 17 42 0.32 85 0 0 9 37 34 17 24 19.7 40 98 -75 9 55 12 9 19 54 10 22 57 8 51 59 0.32 86 0 0 9 11 24 17 24 9.0 41 98 -75 9 29 6 8 53 39 9 56 56 8 25 39 0.32 87 0 0 8 44 36 17 23 58.1 42 97 -75 9 2 22 8 26 48 9 30 19 7 58 41 0.32 88 0 0 8 17 12 17 23 46.9 43 97 -76 8 35 2 7 59 20 9 3 5 7 31 6 0.32 89 0 0 7 49 11 17 23 35.5 44 97 -76 8 7 5 7 31 15 8 35 14 7 2 55 0.32 90 0 0 7 20 34 17 23 23.8 45 97 -76 7 38 32 7 2 34 8 6 47 6 34 7 0.32 91 0 0 6 51 20 17 23 11.8 46 97 -75 7 9 23 6 33 16 7 37 44 6 4 43 0.32 92 0 0 6 21 31 17 22 59.6 47 96 -75 6 39 37 6 3 22 7 8 5 5 34 43 0.32 93 0 0 5 51 6 17 22 47.1 48 96 -75 6 9 17 5 32 53 6 37 51 5 4 7 0.32 94 0 0 5 20 5 17 22 34.4 49 96 -75 5 38 20 5 1 48 6 7 1 4 32 55 0.32 95 0 0 4 48 30 17 22 21.5 50 95 -74 5 6 49 4 30 9 5 35 37 4 1 9 0.32 96 0 0 4 16 20 17 22 8.3 51 95 -74 4 34 44 3 57 55 5 3 38 3 28 48 0.32 97 0 0 3 43 36 17 21 54.8 52 94 -73 4 2 4 3 25 6 4 31 5 2 55 53 0.32 98 0 0 3 10 18 17 21 41.1 53 94 -73 3 28 50 2 51 44 3 57 58 2 22 24 0.32 99 0 0 2 36 27 17 21 27.2 54 93 -72 2 55 4 2 17 49 3 24 18 1 48 21 0.33 100 0 0 2 2 3 17 21 13.1 55 92 -71 2 20 44 1 43 20 2 50 5 1 13 46 0.33 101 0 0 1 27 7 17 20 58.7 56 91 -70 1 45 52 1 8 20 2 15 20 0 38 38 0.33 102 0 0 0 51 39 17 20 44.2 57 91 -70 1 10 29 0 32 48 1 40 4 0 2 59 0.33 103 0 0 0 15 40 17 20 29.4 58 90 -69 0 34 34 - 0 3 16 1 4 16 - 0 33 11 0.33 104 0 0 - 0 20 49 17 20 14.4 59 89 -68 - 0 1 51 - 0 39 49 0 27 58 - 1 9 52 0.33 105 0 0 - 0 57 48 17 19 59.2 60 88 -67 - 0 38 45 - 1 16 53 - 0 8 50 - 1 47 2 0.33 106 0 0 - 1 35 16 17 19 43.8 61 86 -66 - 1 16 9 - 1 54 25 - 0 46 7 - 2 24 41 0.33 107 0 0 - 2 13 12 17 19 28.3 61 85 -65 - 1 54 1 - 2 32 25 - 1 23 52 - 3 2 48 0.33 108 0 0 - 2 51 35 17 19 12.5 62 84 -64 - 2 32 20 - 3 10 53 - 2 2 5 - 3 41 23 0.33 109 0 0 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24 -52 48 55 0.36 -165 0 0 -52 18 17 17 1 53.0 20 299 18 -52 0 47 -52 35 48 -51 33 18 -53 3 28 0.36 -164 0 0 -52 32 32 17 1 49.5 20 298 19 -52 15 6 -52 49 59 -51 47 43 -53 17 33 0.36 -163 0 0 -52 46 18 17 1 46.1 19 297 20 -52 28 57 -53 3 41 -52 1 40 -53 31 9 0.36 -162 0 0 -52 59 37 17 1 42.9 18 297 20 -52 42 19 -53 16 56 -52 15 8 -53 44 18 0.36 -161 0 0 -53 12 28 17 1 39.9 18 296 21 -52 55 14 -53 29 43 -52 28 8 -53 56 59 0.36 -160 0 0 -53 24 51 17 1 36.9 17 295 21 -53 7 41 -53 42 3 -52 40 41 -54 9 13 0.36 -159 0 0 -53 36 47 17 1 34.1 16 294 22 -53 19 41 -53 53 56 -52 52 47 -54 21 1 0.36 -158 0 0 -53 48 17 17 1 31.4 16 293 23 -53 31 14 -54 5 22 -53 4 25 -54 32 21 0.36 -157 0 0 -53 59 20 17 1 28.8 15 293 23 -53 42 21 -54 16 22 -53 15 37 -54 43 16 0.36 -156 0 0 -54 9 57 17 1 26.3 15 292 24 -53 53 1 -54 26 56 -53 26 22 -54 53 44 0.36 -155 0 0 -54 20 9 17 1 23.9 14 291 24 -54 3 15 -54 37 4 -53 36 42 -55 3 47 0.36 -154 0 0 -54 29 54 17 1 21.7 13 290 25 -54 13 4 -54 46 46 -53 46 35 -55 13 25 0.36 -153 0 0 -54 39 14 17 1 19.5 13 289 26 -54 22 27 -54 56 4 -53 56 3 -55 22 38 0.36 -152 0 0 -54 48 9 17 1 17.5 12 288 26 -54 31 25 -55 4 56 -54 5 5 -55 31 25 0.36 -151 0 0 -54 56 40 17 1 15.6 12 288 27 -54 39 58 -55 13 23 -54 13 42 -55 39 49 0.35 -150 0 0 -55 4 45 17 1 13.8 11 287 27 -54 48 6 -55 21 26 -54 21 54 -55 47 47 0.35 -149 0 0 -55 12 26 17 1 12.0 10 286 28 -54 55 49 -55 29 5 -54 29 42 -55 55 22 0.35 -148 0 0 -55 19 43 17 1 10.4 10 285 28 -55 3 9 -55 36 19 -54 37 5 -56 2 33 0.36 -147 0 0 -55 26 36 17 1 8.9 9 284 29 -55 10 4 -55 43 10 -54 44 3 -56 9 20 0.36 -146 0 0 -55 33 5 17 1 7.5 9 284 29 -55 16 35 -55 49 37 -54 50 38 -56 15 43 0.36 -145 0 0 -55 39 11 17 1 6.1 8 283 30 -55 22 43 -55 55 40 -54 56 49 -56 21 43 0.36 -144 0 0 -55 44 53 17 1 4.9 8 282 31 -55 28 26 -56 1 20 -55 2 36 -56 27 20 0.36 -143 0 0 -55 50 11 17 1 3.8 7 281 31 -55 33 47 -56 6 37 -55 7 59 -56 32 34 0.36 -142 0 0 -55 55 7 17 1 2.7 6 280 32 -55 38 44 -56 11 31 -55 12 59 -56 37 25 0.36 -141 0 0 -55 59 39 17 1 1.8 6 279 32 -55 43 18 -56 16 2 -55 17 35 -56 41 54 0.36 -140 0 0 -56 3 49 17 1 0.9 5 279 33 -55 47 29 -56 20 10 -55 21 49 -56 46 0 0.36 -139 0 0 -56 7 36 17 1 0.1 5 278 33 -55 51 17 -56 23 56 -55 25 39 -56 49 43 0.36 -138 0 0 -56 11 0 17 0 59.4 4 277 34 -55 54 43 -56 27 18 -55 29 6 -56 53 4 0.36 -137 0 0 -56 14 1 17 0 58.8 4 276 34 -55 57 45 -56 30 19 -55 32 11 -56 56 3 0.37 -136 0 0 -56 16 40 17 0 58.3 3 275 35 -56 0 25 -56 32 57 -55 34 52 -56 58 39 0.37 -135 0 0 -56 18 57 17 0 57.9 3 274 35 -56 2 43 -56 35 12 -55 37 11 -57 0 53 0.38 -134 0 0 -56 20 51 17 0 57.5 2 274 36 -56 4 37 -56 37 6 -55 39 7 -57 2 45 0.39 -133 0 0 -56 22 23 17 0 57.2 1 273 36 -56 6 10 -56 38 37 -55 40 40 -57 4 15 0.40 -132 0 0 -56 23 32 17 0 57.1 1 272 37 -56 7 20 -56 39 46 -55 41 51 -57 5 23 0.44 -131 0 0 -56 24 19 17 0 57.0 0 271 37 -56 8 7 -56 40 32 -55 42 39 -57 6 9 0.61 Uncertainty in time = +/- 6 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 452-019223 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 32 49.4735 DE: +00 22 27.127 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 32 49.4735 DE: +00 22 27.127 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.500,0.400) * V mag [mag]: 9.8 * B mag [mag]: 11.9 * Diameter [mas]: 1.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (679) Pax asteroid class: Barbarian approx. diameter [km]: 56 approx. diameter ["]: 0.065 distance from Earth [AU]: 1.18250 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): 0.056", 0.022", 59.617° remarks: * orbital elements for (679)Pax : Mean anomaly = 32.5206841930 deg Arg. of pericenter = 267.1461385806 deg Long. of node = 112.0751010903 deg Inclination = 24.4106814837 deg Eccentricity = 0.3100436557 Semimajor axis = 2.5871580341 AU Perihelion dist = 1.7850260994 AU Mag: H = 9.13, G = 0.15 Epoch of elements : MJD 60637.71835659 TDT (2024 Nov 23.7184) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,7.64,2024,11,23,17.240560,-0.196165,-0.257608,-3.340918,2.544599,-0.003224,0.001885,0.000001,0.000000 136.7549,0.3575,-81.96,-20.54,False UCAC4 452-019223,6.54707595,0.3742021,11.89,9.82,8.70,1.1,4,,6.56867866,0.3575385,2.32,2.93,0,0,0 679,Pax,12.00,56.830,1.1825,0,0,-1.657,18.94,,3.0,0 0,32.3505,2024,11,23,267.1461,112.0751,24.4107,0.31004,2.58716,1.78503,9.13,5.0,0.15 1.788,0.0557,0.0223,60,0.0522,Known errors,1.06,0,-1,-1 20241123_019223,60140.71 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:03 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org