IOTA/IOTA-ES occultation update for (4388) Jurgenstock / HIP 32349 event on 2019 Feb 19, 05:21 UT Visible from Argentina, Chile, Central America, Caribbean Summary ------- On 2019 Feb 19 UT, the 4.6 km diameter asteroid (4388) Jurgenstock will occult a -1.4 mag star in the constellation Canis Major for observers along a path across Argentina, Chile, Central America, Caribbean. In the case of an occultation, the combined light of the asteroid and the star will drop by 18.13 mag to 16.69 mag (the magnitude of the asteroid) for at most 1.6 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. The event at a glimpse ---------------------- * Rank: 16 * date and approx. time of event: 2019 Feb 19, 05:10 - 2019 Feb 19, 05:26 * geocentric midpoint of event [JD]: 2458533.72134583 * magnitude of target star: -1.44 * magnitude drop [mag]: 18.13 * estimated maximum duration [s]: 1.6 * Moon: 100 % sunlit, 55° distance * Sun: 122° distance * rough path description: Argentina, Chile, Central America, Caribbean Additional comments ------------------- Transit => extended slow fade The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 6.52 * 1 sigma uncertainty interval [seconds]: +/- 7.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.107, +/- 0.077) * 1 sigma uncertainty ellipse (major, minor, PA): (0.110", 0.073", 107°) * approx speed of asteroid's shadow [km/s]: 10.0046 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 32349 by 4388 Jurgenstock on 2019 Feb 19 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 Alt E. Longitude Latitude U.T. Alt Az Alt Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. - 17 53 9 -55 59 38 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. - 13 18 1 -53 29 53 ... .. .. .. .. .. - 24 57 57 -57 0 23 ... .. .. .. .. .. .... - 22 43 42 -55 21 11 5 11 7 7 250 -11 - 23 22 7 -55 32 12 - 22 3 7 -55 9 27 - 29 54 38 -57 18 47 ... .. .. .. .. .. .... - 28 9 35 -55 51 43 5 11 14 10 255 -13 - 28 37 45 -55 59 12 - 27 40 42 -55 43 59 - 33 57 25 -57 20 11 - 19 15 8 -53 19 11 -0.80 - 32 22 47 -55 58 56 5 11 21 12 258 -14 - 32 46 29 -56 4 51 - 31 58 43 -55 52 53 - 37 26 32 -57 11 40 - 25 57 2 -54 16 59 -0.86 - 35 56 27 -55 54 9 5 11 28 14 261 -16 - 36 17 28 -55 59 7 - 35 35 11 -55 49 6 - 40 31 17 -56 56 30 - 30 31 15 -54 33 17 -0.88 - 39 3 15 -55 41 44 5 11 35 16 263 -17 - 39 22 25 -55 46 3 - 38 43 54 -55 37 22 - 43 16 59 -56 36 32 - 34 14 13 -54 33 38 -0.89 - 41 49 48 -55 24 0 5 11 42 17 266 -18 - 42 7 35 -55 27 48 - 41 31 53 -55 20 8 - 45 47 7 -56 12 57 - 37 25 49 -54 24 44 -0.90 - 44 20 10 -55 2 17 5 11 49 19 267 -19 - 44 36 51 -55 5 43 - 44 3 23 -54 58 49 - 48 4 8 -55 46 33 - 40 15 2 -54 9 40 -0.90 - 46 37 8 -54 37 33 5 11 56 20 269 -20 - 46 52 54 -54 40 39 - 46 21 15 -54 34 24 - 50 9 53 -55 17 55 - 42 46 56 -53 50 10 -0.91 - 48 42 40 -54 10 25 5 12 2 21 271 -21 - 48 57 41 -54 13 16 - 48 27 35 -54 7 32 - 52 5 49 -54 47 31 - 45 4 48 -53 27 17 -0.91 - 50 38 20 -53 41 22 5 12 9 22 272 -22 - 50 52 42 -53 44 0 - 50 23 55 -53 38 43 - 53 53 4 -54 15 41 - 47 10 54 -53 1 48 -0.91 - 52 25 21 -53 10 46 5 12 16 23 273 -23 - 52 39 7 -53 13 12 - 52 11 31 -53 8 19 - 55 32 38 -53 42 39 - 49 6 54 -52 34 14 -0.91 - 54 4 41 -52 38 55 5 12 23 24 274 -24 - 54 17 57 -52 41 11 - 53 51 22 -52 36 37 - 57 5 18 -53 8 39 - 50 54 9 -52 4 58 -0.91 - 55 37 10 -52 6 0 5 12 30 25 275 -25 - 55 49 59 -52 8 7 - 55 24 19 -52 3 52 - 58 31 46 -52 33 52 - 52 33 39 -51 34 20 -0.91 - 57 3 31 -51 32 14 5 12 37 26 276 -25 - 57 15 54 -51 34 13 - 56 51 5 -51 30 13 - 59 52 38 -51 58 25 - 54 6 17 -51 2 34 -0.91 - 58 24 17 -50 57 44 5 12 44 27 277 -26 - 58 36 18 -50 59 37 - 58 12 14 -50 55 51 - 61 8 24 -51 22 25 - 55 32 45 -50 29 51 -0.91 - 59 40 1 -50 22 39 5 12 51 28 278 -27 - 59 51 41 -50 24 25 - 59 28 19 -50 20 52 - 62 19 31 -50 45 58 - 56 53 40 -49 56 21 -0.91 - 60 51 9 -49 47 4 5 12 58 29 278 -28 - 61 2 29 -49 48 44 - 60 39 46 -49 45 23 - 63 26 23 -50 9 10 - 58 9 34 -49 22 11 -0.91 - 61 58 4 -49 11 4 5 13 5 30 279 -29 - 62 9 7 -49 12 39 - 61 47 0 -49 9 28 - 64 29 21 -49 32 3 - 59 20 52 -48 47 29 -0.91 - 63 1 8 -48 34 43 5 13 12 30 279 -29 - 63 11 54 -48 36 14 - 62 50 20 -48 33 12 - 65 28 44 -48 54 41 - 60 27 58 -48 12 18 -0.91 - 64 0 38 -47 58 5 5 13 19 31 280 -30 - 64 11 9 -47 59 31 - 63 50 6 -47 56 38 - 66 24 49 -48 17 7 - 61 31 14 -47 36 44 -0.91 - 64 56 52 -47 21 13 5 13 26 32 280 -31 - 65 7 9 -47 22 35 - 64 46 34 -47 19 50 - 67 17 50 -47 39 23 - 62 30 58 -47 0 51 -0.91 - 65 50 4 -46 44 9 5 13 32 33 280 -31 - 66 0 7 -46 45 28 - 65 39 59 -46 42 49 - 68 8 2 -47 1 32 - 63 27 26 -46 24 41 -0.91 - 66 40 27 -46 6 55 5 13 39 33 281 -32 - 66 50 17 -46 8 11 - 66 30 35 -46 5 39 - 68 55 35 -46 23 35 - 64 20 52 -45 48 17 -0.91 - 67 28 13 -45 29 34 5 13 46 34 281 -33 - 67 37 52 -45 30 47 - 67 18 33 -45 28 21 - 69 40 42 -45 45 33 - 65 11 31 -45 11 41 -0.91 - 68 13 34 -44 52 7 5 13 53 34 281 -34 - 68 23 1 -44 53 16 - 68 4 5 -44 50 57 - 70 23 32 -45 7 29 - 65 59 33 -44 34 56 -0.91 - 68 56 38 -44 14 35 5 14 0 35 281 -34 - 69 5 55 -44 15 42 - 68 47 20 -44 13 27 - 71 4 14 -44 29 22 - 66 45 9 -43 58 3 -0.91 - 69 37 34 -43 36 59 5 14 7 36 281 -35 - 69 46 41 -43 38 3 - 69 28 26 -43 35 54 - 71 42 56 -43 51 14 - 67 28 30 -43 21 3 -0.91 - 70 16 32 -42 59 20 5 14 14 36 281 -36 - 70 25 29 -43 0 23 - 70 7 33 -42 58 17 - 72 19 46 -43 13 5 - 68 9 43 -42 43 59 -0.91 - 70 53 37 -42 21 40 5 14 21 37 281 -36 - 71 2 26 -42 22 40 - 70 44 48 -42 20 39 - 72 54 51 -42 34 57 - 68 48 57 -42 6 50 -0.91 - 71 28 58 -41 43 58 5 14 28 37 281 -37 - 71 37 38 -41 44 56 - 71 20 17 -41 43 0 - 73 28 17 -41 56 49 - 69 26 19 -41 29 38 -0.92 - 72 2 40 -41 6 16 5 14 35 38 281 -38 - 72 11 12 -41 7 12 - 71 54 6 -41 5 19 - 74 0 10 -41 18 42 - 70 1 56 -40 52 23 -0.92 - 72 34 48 -40 28 34 5 14 42 38 281 -38 - 72 43 13 -40 29 28 - 72 26 23 -40 27 39 - 74 30 35 -40 40 37 - 70 35 54 -40 15 6 -0.92 - 73 5 29 -39 50 52 5 14 49 39 281 -39 - 73 13 46 -39 51 45 - 72 57 10 -39 49 59 - 74 59 37 -40 2 33 - 71 8 19 -39 37 48 -0.92 - 73 34 46 -39 13 11 5 14 56 39 281 -40 - 73 42 56 -39 14 2 - 73 26 35 -39 12 19 - 75 27 21 -39 24 32 - 71 39 15 -39 0 30 -0.92 - 74 2 45 -38 35 30 5 15 2 40 280 -40 - 74 10 48 -38 36 20 - 73 54 40 -38 34 40 - 75 53 50 -38 46 33 - 72 8 48 -38 23 11 -0.92 - 74 29 29 -37 57 51 5 15 9 40 280 -41 - 74 37 26 -37 58 40 - 74 21 30 -37 57 2 - 76 19 9 -38 8 36 - 72 37 2 -37 45 51 -0.92 - 74 55 2 -37 20 14 5 15 16 41 280 -41 - 75 2 53 -37 21 1 - 74 47 9 -37 19 26 - 76 43 21 -37 30 41 - 73 4 0 -37 8 32 -0.92 - 75 19 28 -36 42 37 5 15 23 41 280 -42 - 75 27 14 -36 43 24 - 75 11 41 -36 41 51 - 77 6 29 -36 52 49 - 73 29 48 -36 31 14 -0.92 - 75 42 49 -36 5 3 5 15 30 41 279 -43 - 75 50 30 -36 5 48 - 75 35 8 -36 4 17 - 77 28 36 -36 15 0 - 73 54 27 -35 53 56 -0.92 - 76 5 10 -35 27 30 5 15 37 42 279 -43 - 76 12 46 -35 28 14 - 75 57 34 -35 26 45 - 77 49 46 -35 37 13 - 74 18 3 -35 16 38 -0.92 - 76 26 33 -34 49 59 5 15 44 42 279 -44 - 76 34 3 -34 50 42 - 76 19 2 -34 49 15 - 78 10 1 -34 59 28 - 74 40 36 -34 39 22 -0.92 - 76 47 0 -34 12 29 5 15 51 42 278 -45 - 76 54 25 -34 13 11 - 76 39 33 -34 11 47 - 78 29 23 -34 21 46 - 75 2 11 -34 2 6 -0.92 - 77 6 33 -33 35 1 5 15 58 43 278 -45 - 77 13 54 -33 35 43 - 76 59 12 -33 34 20 - 78 47 55 -33 44 7 - 75 22 50 -33 24 51 -0.92 - 77 25 16 -32 57 35 5 16 5 43 278 -46 - 77 32 33 -32 58 16 - 77 17 59 -32 56 55 - 79 5 38 -33 6 30 - 75 42 34 -32 47 37 -0.92 - 77 43 10 -32 20 11 5 16 12 43 277 -46 - 77 50 23 -32 20 51 - 77 35 57 -32 19 31 - 79 22 35 -32 28 55 - 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73 9 18 17 25 54 1.00 - 74 33 39 17 58 58 5 24 51 27 240 -83 - 74 41 54 17 57 40 - 74 25 22 18 0 17 - 76 25 30 17 41 58 - 72 34 49 18 18 27 1.00 - 74 0 0 18 51 30 5 24 58 26 240 -82 - 74 8 29 18 50 8 - 73 51 30 18 52 53 - 75 54 45 18 33 33 - 71 57 35 19 12 9 1.00 - 73 23 45 19 45 8 5 25 5 25 240 -81 - 73 32 29 19 43 40 - 73 14 58 19 46 36 - 75 21 46 19 26 7 - 71 17 12 20 7 8 1.00 - 72 44 31 20 40 0 5 25 12 24 240 -79 - 72 53 33 20 38 26 - 72 35 27 20 41 34 - 74 46 17 20 19 46 - 70 33 12 21 3 32 1.00 - 72 1 55 21 36 14 5 25 19 23 240 -78 - 72 11 17 21 34 34 - 71 52 29 21 37 55 - 74 7 59 21 14 37 - 69 44 59 22 1 35 1.00 - 71 15 22 22 34 3 5 25 26 21 240 -77 - 71 25 9 22 32 15 - 71 5 31 22 35 52 - 73 26 28 22 10 49 - 68 51 44 23 1 34 1.01 - 70 24 11 23 33 41 5 25 32 20 240 -76 - 70 34 27 23 31 44 - 70 13 51 23 35 40 - 72 41 14 23 8 31 - 67 52 24 24 3 50 1.01 - 69 27 27 24 35 27 5 25 39 19 241 -75 - 69 38 19 24 33 18 - 69 16 30 24 37 38 - 71 51 39 24 7 59 - 66 45 27 25 8 52 1.01 - 68 23 53 25 39 47 5 25 46 18 241 -73 - 68 35 30 25 37 23 - 68 12 10 25 42 12 - 70 56 54 25 9 28 - 65 28 39 26 17 25 1.02 - 67 11 39 26 47 16 5 25 53 16 241 -72 - 67 24 14 26 44 34 - 66 58 56 26 50 0 - 69 55 53 26 13 21 - 63 58 23 27 30 40 1.03 - 65 47 57 27 58 50 5 26 0 14 242 -70 - 66 1 52 27 55 43 - 65 33 51 28 2 1 - 68 47 2 27 20 11 - 62 8 7 28 50 40 1.04 - 64 8 3 29 16 1 5 26 7 12 243 -68 - 64 23 56 29 12 17 - 63 51 53 29 19 52 - 67 28 1 28 30 42 - 59 43 22 30 22 0 1.05 - 62 2 43 30 41 45 5 26 14 10 244 -66 - 62 21 55 30 36 57 - 61 42 59 30 46 43 - 65 55 8 29 46 8 - 55 51 24 32 21 7 1.09 - 59 8 5 32 23 33 5 26 21 7 245 -63 - 59 34 45 32 16 24 - 58 39 53 32 31 10 - 64 1 41 31 8 38 ... .. .. .. .. .. 1.18 .. .. .. .. .. .. .. .. .. .. .. .. - 53 56 28 34 49 53 ... .. .. .. .. .. - 61 32 59 32 42 51 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. - 57 37 17 34 45 4 ... .. .. .. .. .. .... Uncertainty in time = +/- 11 secs Prediction of 2019 Feb 16.0 Data for the target star ------------------------ * name: HIP 32349 * constellation : Canis Major * J2000 position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 45 07.9342 DE: -16 43 22.772 * position source: mpos: John Irwin * standard error: RA,DE ["]: (0.050,0.050) * V mag [mag]: -1.4 * B mag [mag]: -1.4 * Diameter [mas]: 12.00 * remarks:Feb 15 - moved to Sirius A position based on orbit from Bond: http://adsabs.harvard.edu/abs/2017ApJ...840...70B Data for the minor planet ------------------------- * general information: (number) name: (4388) Jurgenstock asteroid class: approx. diameter [km]: 5 approx. diameter ["]: 0.005 distance from Earth [AU]: 1.32720 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: Preston date of fit: 2019 Jan 13 source of used astrometry: MPC number of used observations: 1227 number of rejected observations: 15 time covered by the observations: 1964 Oct 30 - 2018 Dec 16 1 sigma uncertainty ellipse (major, minor, PA): 0.098", 0.053", 106.6° remarks: * orbital elements for (4388)Jurgenstock : Mean anomaly = 48.13362565 deg Arg. of pericenter = 194.89268462 deg Long. of node = 213.82826903 deg Inclination = 24.58818946 deg Eccentricity = 0.27904622 Semimajor axis = 2.33938270 AU Perihelion dist = 1.68658680 AU Mag: H = 13.40, G = 0.15 Epoch of elements : MJD 58533.22400000 TDT (2019 Feb 19.2240) ------ occelmnt file for Occult BEGIN ----------------------------------- Preston2019Jan13,1.6,2019,2,19,5.3123,0.67492,-0.11247,0.93336,5.56919,0.00413,0.00199,0.00000,0.00000 -127.0585,-16.7477,103.79,-11.38 HIP 32349,6.75220396,-16.7229923,-1.44,-1.44,0.00,12.0,0,,6.76650911,-16.7476801 4388,Jurgenstock,16.69,16.2,1.3272,0,0,0.432,36.90, 0,48.0719,2019,2,19,194.8927,213.8283,24.5882,0.27905,2.33938,1.68659,13.40,5.0,0.15 7.466,0.1100,0.0729,107,0.1097,Known errors 20190219__32349,58530.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2019 Feb 16, 19:46 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org