IOTA/IOTA-ES occultation update for (626) Notburga / UCAC4 686-023837 event on 2022 Feb 22, 19:44 UT Visible from Europe, Africa Summary ------- On 2022 Feb 22 UT, the 81.6 km diameter asteroid (626) Notburga will occult a 12.2 mag star in the constellation Perseus for observers along a path across Europe, Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.69 mag to 13.64 mag (the magnitude of the asteroid) for at most 3.440 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: 99 * date and approx. time of event: 2022 Feb 22, 19:39 - 2022 Feb 22, 19:48 * geocentric midpoint of event [JD]: 2459633.32246279 * magnitude of target star: 12.21 * magnitude drop [mag]: 1.69 * estimated maximum duration [s]: 3.440 * Moon: 62 % sunlit, 149° distance * Sun: 90° distance * rough path description: Europe, Africa The occultation path -------------------- * approximate projected width [km]: 84 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.003", 71°) * approx speed of asteroid's shadow [km/s]: 23.7222 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 686-023837 by 626 Notburga on 2022 Feb 22 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 -145 0 0 19 41 27 19 39 58.4 0 39 46 .. .. .. 20 17 46 .. .. .. 20 34 15 .... -144 0 0 20 51 29 19 39 58.5 2 39 46 20 15 18 21 27 48 19 58 58 21 44 18 -0.26 -143 0 0 22 1 0 19 39 58.8 3 40 46 21 24 49 22 37 19 21 8 29 22 53 49 -0.25 -142 0 0 23 9 55 19 39 59.3 5 40 46 22 33 46 23 46 14 22 17 27 24 2 43 -0.25 -141 0 0 24 18 12 19 40 0.0 6 41 45 23 42 4 24 54 28 23 25 46 25 10 56 -0.25 -140 0 0 25 25 44 19 40 0.9 8 41 45 24 49 39 26 1 57 24 33 23 26 18 23 -0.25 -139 0 0 26 32 27 19 40 1.9 9 41 45 25 56 27 27 8 36 25 40 13 27 25 0 -0.25 -138 0 0 27 38 19 19 40 3.0 10 42 45 27 2 24 28 14 23 26 46 12 28 30 44 -0.25 -137 0 0 28 43 15 19 40 4.3 12 42 44 28 7 26 29 19 12 27 51 17 29 35 31 -0.25 -136 0 0 29 47 11 19 40 5.8 13 43 44 29 11 30 30 23 1 28 55 24 30 39 17 -0.25 -135 0 0 30 50 6 19 40 7.4 15 43 44 30 14 32 31 25 47 29 58 30 31 41 59 -0.25 -134 0 0 31 51 55 19 40 9.1 16 44 43 31 16 30 32 27 27 31 0 32 32 43 34 -0.25 -133 0 0 32 52 36 19 40 10.9 17 45 43 32 17 22 33 27 58 32 1 27 33 44 1 -0.25 -132 0 0 33 52 7 19 40 12.8 18 45 42 33 17 4 34 27 19 33 1 14 34 43 17 -0.25 -131 0 0 34 50 27 19 40 14.9 20 46 42 34 15 35 35 25 27 33 59 51 35 41 20 -0.25 -130 0 0 35 47 34 19 40 17.0 21 46 41 35 12 53 36 22 22 34 57 15 36 38 9 -0.25 -129 0 0 36 43 26 19 40 19.2 22 47 41 36 8 58 37 18 1 35 53 25 37 33 42 -0.25 -128 0 0 37 38 2 19 40 21.5 23 48 40 37 3 47 38 12 24 36 48 20 38 27 59 -0.25 -127 0 0 38 31 22 19 40 23.8 25 48 40 37 57 21 39 5 29 37 42 0 39 20 58 -0.25 -126 0 0 39 23 25 19 40 26.2 26 49 39 38 49 38 39 57 18 38 34 24 40 12 40 -0.25 -125 0 0 40 14 11 19 40 28.7 27 50 38 39 40 39 40 47 49 39 25 31 41 3 5 -0.25 -124 0 0 41 3 39 19 40 31.2 28 50 38 40 30 22 41 37 3 40 15 21 41 52 11 -0.25 -123 0 0 41 51 51 19 40 33.8 29 51 37 41 18 49 42 24 59 41 3 55 42 40 0 -0.25 -122 0 0 42 38 46 19 40 36.4 30 52 37 42 6 0 43 11 38 41 51 12 43 26 32 -0.25 -121 0 0 43 24 24 19 40 39.0 31 53 36 42 51 54 43 57 1 42 37 14 44 11 48 -0.25 -120 0 0 44 8 48 19 40 41.7 32 54 35 43 36 33 44 41 8 43 22 0 44 55 48 -0.24 -119 0 0 44 51 56 19 40 44.3 33 54 35 44 19 58 45 24 0 44 5 32 45 38 33 -0.24 -118 0 0 45 33 51 19 40 47.0 34 55 34 45 2 9 46 5 39 44 47 50 46 20 4 -0.24 -117 0 0 46 14 33 19 40 49.7 35 56 34 45 43 7 46 46 5 45 28 56 47 0 22 -0.24 -116 0 0 46 54 4 19 40 52.4 36 57 33 46 22 54 47 25 19 46 8 50 47 39 29 -0.24 -115 0 0 47 32 24 19 40 55.1 37 58 33 47 1 30 48 3 23 46 47 33 48 17 26 -0.24 -114 0 0 48 9 35 19 40 57.8 38 59 32 47 38 57 48 40 18 47 25 7 48 54 13 -0.24 -113 0 0 48 45 38 19 41 0.5 39 59 31 48 15 16 49 16 5 48 1 34 49 29 53 -0.24 -112 0 0 49 20 35 19 41 3.3 40 60 31 48 50 29 49 50 46 48 36 53 50 4 26 -0.24 -111 0 0 49 54 27 19 41 6.0 41 61 30 49 24 37 50 24 22 49 11 8 50 37 55 -0.24 -110 0 0 50 27 15 19 41 8.6 41 62 30 49 57 40 50 56 54 49 44 19 51 10 21 -0.24 -109 0 0 50 59 1 19 41 11.3 42 63 29 50 29 42 51 28 25 50 16 27 51 41 44 -0.24 -108 0 0 51 29 46 19 41 14.0 43 64 29 51 0 42 51 58 55 50 47 34 52 12 7 -0.24 -107 0 0 51 59 32 19 41 16.7 44 65 28 51 30 43 52 28 26 51 17 42 52 41 31 -0.24 -106 0 0 52 28 20 19 41 19.3 45 66 27 51 59 46 52 56 59 51 46 51 53 9 58 -0.24 -105 0 0 52 56 12 19 41 21.9 45 67 27 52 27 52 53 24 36 52 15 4 53 37 29 -0.24 -104 0 0 53 23 9 19 41 24.5 46 68 26 52 55 3 53 51 19 52 42 21 54 4 5 -0.24 -103 0 0 53 49 12 19 41 27.1 47 69 26 53 21 20 54 17 8 53 8 44 54 29 47 -0.24 -102 0 0 54 14 23 19 41 29.7 47 70 25 53 46 44 54 42 5 53 34 15 54 54 38 -0.24 -101 0 0 54 38 43 19 41 32.3 48 71 25 54 11 18 55 6 11 53 58 54 55 18 39 -0.24 -100 0 0 55 2 13 19 41 34.8 49 72 24 54 35 1 55 29 29 54 22 44 55 41 50 -0.24 - 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8 0 0 54 6 40 19 45 15.0 72 258 -17 53 38 57 54 34 27 53 26 25 54 47 3 -0.24 - 7 0 0 53 41 8 19 45 18.3 71 261 -17 53 13 11 54 9 9 53 0 33 54 21 51 -0.24 - 6 0 0 53 14 43 19 45 21.8 71 263 -18 52 46 32 53 42 58 52 33 48 53 55 47 -0.24 - 5 0 0 52 47 23 19 45 25.2 70 265 -19 52 18 57 53 15 53 52 6 7 53 28 48 -0.24 - 4 0 0 52 19 7 19 45 28.8 70 268 -19 51 50 27 52 47 52 51 37 30 53 0 54 -0.24 - 3 0 0 51 49 54 19 45 32.3 69 270 -20 51 20 58 52 18 53 51 7 54 52 32 2 -0.24 - 2 0 0 51 19 41 19 45 36.0 68 272 -21 50 50 30 51 48 56 50 37 20 52 2 12 -0.24 - 1 0 0 50 48 28 19 45 39.7 68 274 -22 50 19 2 51 17 58 50 5 44 51 31 21 -0.24 0 0 0 50 16 13 19 45 43.4 67 276 -22 49 46 31 50 45 59 49 33 6 50 59 29 -0.24 1 0 0 49 42 54 19 45 47.2 66 278 -23 49 12 56 50 12 56 48 59 24 50 26 33 -0.24 2 0 0 49 8 30 19 45 51.1 66 280 -24 48 38 16 49 38 48 48 24 36 49 52 33 -0.24 3 0 0 48 32 59 19 45 55.0 65 281 -25 48 2 29 49 3 34 47 48 42 49 17 26 -0.24 4 0 0 47 56 20 19 45 59.0 64 283 -25 47 25 34 48 27 12 47 11 40 48 41 11 -0.24 5 0 0 47 18 32 19 46 3.0 63 285 -26 46 47 29 47 49 40 46 33 28 48 3 47 -0.24 6 0 0 46 39 33 19 46 7.1 62 286 -27 46 8 13 47 10 58 45 54 5 47 25 12 -0.24 7 0 0 45 59 21 19 46 11.3 62 288 -28 45 27 45 46 31 3 45 13 29 46 45 25 -0.24 8 0 0 45 17 57 19 46 15.5 61 289 -29 44 46 4 45 49 55 44 31 40 46 4 25 -0.24 9 0 0 44 35 17 19 46 19.7 60 291 -30 44 3 8 45 7 32 43 48 36 45 22 9 -0.24 10 0 0 43 51 21 19 46 24.0 59 292 -31 43 18 56 44 23 53 43 4 17 44 38 38 -0.24 11 0 0 43 6 9 19 46 28.4 58 294 -32 42 33 27 43 38 57 42 18 41 43 53 50 -0.24 12 0 0 42 19 39 19 46 32.7 57 295 -33 41 46 41 42 52 44 41 31 48 43 7 44 -0.24 13 0 0 41 31 51 19 46 37.2 56 296 -33 40 58 36 42 5 12 40 43 36 42 20 19 -0.24 14 0 0 40 42 44 19 46 41.6 55 297 -34 40 9 13 41 16 21 39 54 6 41 31 35 -0.24 15 0 0 39 52 17 19 46 46.1 54 299 -35 39 18 31 40 26 10 39 3 17 40 41 31 -0.24 16 0 0 39 0 31 19 46 50.6 53 300 -36 38 26 30 39 34 39 38 11 9 39 50 8 -0.25 17 0 0 38 7 26 19 46 55.2 52 301 -38 37 33 10 38 41 48 37 17 42 38 57 24 -0.25 18 0 0 37 13 1 19 46 59.7 50 302 -39 36 38 31 37 47 38 36 22 57 38 3 20 -0.25 19 0 0 36 17 18 19 47 4.3 49 303 -40 35 42 34 36 52 9 35 26 54 37 7 57 -0.25 20 0 0 35 20 17 19 47 8.8 48 304 -41 34 45 20 35 55 21 34 29 34 36 11 16 -0.25 21 0 0 34 21 59 19 47 13.4 47 305 -42 33 46 50 34 57 16 33 30 58 35 13 16 -0.25 22 0 0 33 22 26 19 47 17.9 46 306 -43 32 47 6 33 57 55 32 31 8 34 14 1 -0.25 23 0 0 32 21 40 19 47 22.4 44 307 -44 31 46 8 32 57 19 31 30 6 33 13 30 -0.25 24 0 0 31 19 42 19 47 26.9 43 307 -45 30 44 0 31 55 32 30 27 53 32 11 47 -0.25 25 0 0 30 16 35 19 47 31.4 42 308 -46 29 40 44 30 52 34 29 24 33 31 8 54 -0.25 26 0 0 29 12 21 19 47 35.8 40 309 -48 28 36 22 29 48 29 28 20 7 30 4 52 -0.25 27 0 0 28 7 4 19 47 40.1 39 310 -49 27 30 57 28 43 19 27 14 40 28 59 46 -0.25 28 0 0 27 0 47 19 47 44.3 37 310 -50 26 24 34 27 37 9 26 8 13 27 53 39 -0.25 29 0 0 25 53 34 19 47 48.5 36 311 -51 25 17 15 26 30 1 25 0 52 26 46 33 -0.25 30 0 0 24 45 28 19 47 52.6 35 312 -52 24 9 5 25 21 59 23 52 41 25 38 34 -0.25 31 0 0 23 36 34 19 47 56.5 33 312 -54 23 0 8 24 13 8 22 43 42 24 29 44 -0.26 32 0 0 22 26 56 19 48 0.4 32 313 -55 21 50 29 23 3 33 21 34 2 23 20 10 -0.26 33 0 0 21 16 40 19 48 4.1 30 313 -56 20 40 11 21 53 17 20 23 44 22 9 55 -0.26 34 0 0 20 5 50 19 48 7.7 29 314 -57 19 29 21 20 42 27 19 12 54 20 59 4 -0.26 35 0 0 18 54 31 19 48 11.2 27 314 -58 18 18 4 19 31 6 18 1 37 19 47 43 -0.26 36 0 0 17 42 48 19 48 14.4 26 314 -60 17 6 24 18 19 21 16 49 58 18 35 57 -0.26 37 0 0 16 30 47 19 48 17.6 24 315 -61 15 54 27 17 7 17 15 38 3 17 23 51 -0.26 38 0 0 15 18 34 19 48 20.5 23 315 -62 14 42 18 15 54 59 14 25 56 16 11 31 -0.26 39 0 0 14 6 14 19 48 23.3 21 316 -63 13 30 3 14 42 33 13 13 44 14 59 2 -0.27 40 0 0 12 53 52 19 48 25.9 20 316 -64 12 17 48 13 30 4 12 1 32 13 46 30 -0.27 41 0 0 11 41 33 19 48 28.3 18 316 -65 11 5 38 12 17 38 10 49 25 12 34 1 -0.27 42 0 0 10 29 24 19 48 30.6 16 316 -66 9 53 37 11 5 20 9 37 28 11 21 39 -0.27 43 0 0 9 17 30 19 48 32.6 15 316 -67 8 41 52 9 53 16 8 25 47 10 9 30 -0.27 44 0 0 8 5 54 19 48 34.4 13 317 -68 7 30 27 8 41 30 7 14 27 8 57 39 -0.28 45 0 0 6 54 43 19 48 36.0 12 317 -69 6 19 27 7 30 8 6 3 32 7 46 12 -0.28 46 0 0 5 44 1 19 48 37.5 10 317 -70 5 8 57 6 19 14 4 53 7 6 35 13 -0.29 47 0 0 4 33 53 19 48 38.7 9 317 -70 3 59 1 5 8 53 3 43 17 5 24 46 -0.29 48 0 0 3 24 23 19 48 39.7 7 317 -71 2 49 43 3 59 10 2 34 5 4 14 57 -0.30 49 0 0 2 15 34 19 48 40.5 6 317 -71 1 41 8 2 50 7 1 25 36 3 5 48 -0.32 50 0 0 1 7 31 19 48 41.2 4 317 -72 0 33 19 1 41 50 0 17 54 1 57 25 -0.34 51 0 0 0 0 17 19 48 41.6 3 317 -72 - 0 33 40 0 34 22 - 0 48 59 0 49 49 -0.39 52 0 0 - 1 6 4 19 48 41.9 1 317 -72 - 1 39 47 - 0 32 15 - 1 54 59 - 0 16 54 -0.56 Uncertainty in time = +/- 1 secs Prediction of 2022 Feb 14.8 Data for the target star ------------------------ * name: UCAC4 686-023837 * constellation : Perseus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 03 37 48.2026 DE: +47 03 53.347 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 03 37 48.2024 DE: +47 03 53.347 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (626) Notburga asteroid class: approx. diameter [km]: 82 approx. diameter ["]: 0.057 distance from Earth [AU]: 1.97570 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 date of fit: 2022 Feb 04 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): 0.022", 0.003", 70.991° remarks: * orbital elements for (626)Notburga : Mean anomaly = 42.6864889558 deg Arg. of pericenter = 43.4247043157 deg Long. of node = 341.5910633217 deg Inclination = 25.3795676758 deg Eccentricity = 0.2418463352 Semimajor axis = 2.5738655081 AU Perihelion dist = 1.9513855677 AU Mag: H = 9.24, G = 0.15 Epoch of elements : MJD 59632.82243056 TDT (2022 Feb 22.8224) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512022Feb04,3.44,2022,2,22,19.739107,0.065414,0.217899,12.866075,-3.707121,0.005408,0.001430,0.000000,0.000001 -33.9414,47.1391,-112.73,-9.98,False UCAC4 686-023837,3.63005627,47.0648187,0.00,12.21,0.00,0.0,0,,3.65574891,47.1390595,1.69,0.00,0,0,0 626,Notburga,13.64,81.6,1.9757,0,0,5.612,-16.50,,4.8 0,42.4902,2022,2,22,43.4247,341.5911,25.3796,0.24185,2.57387,1.95139,9.24,5.0,0.15 1.226,0.0220,0.0030,71,0.0129,Known errors,-1.00,-1,-1,-1 20220222_023837,59624.80 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Feb 14, 19:16 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org