IOTA/IOTA-ES occultation update for (1007) Pawlowia / TYC 0604-00741-1 event on 2012 Aug 16, 23:21 UT Visible from Africa Summary ------- On 2012 Aug 16 UT, the 24 km diameter asteroid (1007) Pawlowia will occult a 9.6 mag star in the constellation Pisces for observers along a path across Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.6 mag to 15.2 mag (the magnitude of the asteroid) for at most 17.3 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 26 * date and approx. time of event: 2012 Aug 16, 22:24 - 2012 Aug 17, 00:15 UT * geocentric midpoint of event [JD]: 2456156.472275 * magnitude of target star: 9.6 * magnitude drop [mag]: 5.6 * estimated maximum duration [s]: 17.3 * Moon: 1 % sunlit, 121° distance * Sun: 130° distance * rough path description: Africa The occultation path -------------------- * approximate projected width [km]: 33 * 1 sigma uncertainty interval [path widths]: +/- 2.56 * 1 sigma uncertainty interval [seconds]: +/- 37.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .051 +/- .044) * 1 sigma uncertainty ellipse (major, minor, PA): ( .051", .044", 78° ) * approx speed of asteroid's shadow [km/s]: 1.3954 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0604-00741-1 by 1007 Pawlowia on 2012 Aug 16 Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Longitude Longitude Longitude Longitude - 3 8 51 -60 0 0 22 24 49 1 72 -39 - 2 14 0 - 4 7 15 ... .. .. ... .. .. 1 39 16 -59 0 0 22 24 59 3 68 -41 2 19 56 0 57 13 5 30 53 - 3 7 7 5 11 2 -58 0 0 22 25 16 5 65 -43 5 44 47 4 36 30 8 27 19 1 25 4 8 0 7 -57 0 0 22 25 39 7 62 -45 8 29 35 7 30 8 10 53 28 4 47 29 10 20 40 -56 0 0 22 26 4 9 60 -46 10 47 8 9 53 49 12 57 35 7 29 57 12 20 17 -55 0 0 22 26 33 11 59 -47 12 44 32 11 55 46 14 44 41 9 45 24 14 3 40 -54 0 0 22 27 4 12 57 -49 14 26 9 13 40 57 16 18 7 11 40 53 15 33 56 -53 0 0 22 27 37 13 56 -50 15 55 1 15 12 41 17 40 16 13 20 48 16 53 20 -52 0 0 22 28 12 15 55 -51 17 13 14 16 33 17 18 52 52 14 48 6 18 3 31 -51 0 0 22 28 49 16 54 -52 18 22 25 17 44 29 19 57 16 16 4 54 19 5 45 -50 0 0 22 29 27 17 53 -53 19 23 48 18 47 36 20 54 30 17 12 47 20 1 3 -49 0 0 22 30 8 18 52 -54 20 18 21 19 43 40 21 45 25 18 12 58 20 50 13 -48 0 0 22 30 50 19 52 -55 21 6 51 20 33 30 22 30 44 19 6 24 21 33 55 -47 0 0 22 31 33 21 51 -56 21 49 58 21 17 46 23 10 59 19 53 52 22 12 41 -46 0 0 22 32 18 22 51 -57 22 28 13 21 57 4 23 46 41 20 35 59 22 46 59 -45 0 0 22 33 4 23 50 -58 23 2 3 22 31 51 24 18 13 21 13 18 23 17 14 -44 0 0 22 33 52 24 50 -59 23 31 52 23 2 31 24 45 57 21 46 15 23 43 45 -43 0 0 22 34 41 25 50 -60 23 58 0 23 29 26 25 10 11 22 15 14 24 6 49 -42 0 0 22 35 31 26 50 -61 24 20 44 23 52 52 25 31 11 22 40 32 24 26 43 -41 0 0 22 36 22 27 49 -62 24 40 19 24 13 5 25 49 10 23 2 28 24 43 40 -40 0 0 22 37 15 28 49 -63 24 56 58 24 30 19 26 4 21 23 21 17 24 57 51 -39 0 0 22 38 9 28 49 -64 25 10 52 24 44 46 26 16 55 23 37 10 25 9 26 -38 0 0 22 39 5 29 49 -65 25 22 13 24 56 37 26 27 2 23 50 20 25 18 36 -37 0 0 22 40 1 30 49 -66 25 31 9 25 6 1 26 34 49 24 0 57 25 25 28 -36 0 0 22 40 58 31 50 -67 25 37 48 25 13 6 26 40 25 24 9 10 25 30 11 -35 0 0 22 41 57 32 50 -68 25 42 19 25 18 0 26 43 56 24 15 7 25 32 49 -34 0 0 22 42 57 33 50 -69 25 44 47 25 20 50 26 45 30 24 18 55 25 33 31 -33 0 0 22 43 58 34 50 -70 25 45 18 25 21 42 26 45 10 24 20 40 25 32 21 -32 0 0 22 44 59 34 51 -71 25 43 59 25 20 41 26 43 4 24 20 29 25 29 24 -31 0 0 22 46 2 35 51 -72 25 40 53 25 17 53 26 39 14 24 18 27 25 24 44 -30 0 0 22 47 6 36 51 -72 25 36 5 25 13 21 26 33 46 24 14 38 25 18 26 -29 0 0 22 48 11 37 52 -73 25 29 40 25 7 11 26 26 43 24 9 7 25 10 33 -28 0 0 22 49 17 37 52 -74 25 21 40 24 59 25 26 18 8 24 1 58 25 1 9 -27 0 0 22 50 23 38 53 -75 25 12 10 24 50 8 26 8 6 23 53 14 24 50 17 -26 0 0 22 51 31 39 53 -76 25 1 11 24 39 21 25 56 38 23 42 59 24 38 0 -25 0 0 22 52 40 39 54 -77 24 48 48 24 27 9 25 43 47 23 31 16 24 24 19 -24 0 0 22 53 49 40 54 -78 24 35 3 24 13 34 25 29 36 23 18 6 24 9 17 -23 0 0 22 54 59 41 55 -78 24 19 56 23 58 37 25 14 7 23 3 33 23 52 57 -22 0 0 22 56 10 41 56 -79 24 3 32 23 42 21 24 57 22 22 47 39 23 35 20 -21 0 0 22 57 22 42 57 -80 23 45 51 23 24 48 24 39 22 22 30 26 23 16 28 -20 0 0 22 58 35 42 57 -81 23 26 56 23 5 59 24 20 9 22 11 55 22 56 22 -19 0 0 22 59 48 43 58 -81 23 6 47 22 45 56 23 59 45 21 52 8 22 35 4 -18 0 0 23 1 2 43 59 -82 22 45 26 22 24 40 23 38 10 21 31 7 22 12 34 -17 0 0 23 2 17 44 60 -82 22 22 54 22 2 13 23 15 26 21 8 52 21 48 55 -16 0 0 23 3 33 44 61 -83 21 59 12 21 38 35 22 51 34 20 45 24 21 24 5 -15 0 0 23 4 49 45 62 -83 21 34 21 21 13 48 22 26 35 20 20 45 20 58 7 -14 0 0 23 6 6 45 63 -84 21 8 22 20 47 51 22 0 29 19 54 55 20 31 1 -13 0 0 23 7 23 45 63 -84 20 41 15 20 20 46 21 33 16 19 27 55 20 2 47 -12 0 0 23 8 42 46 64 -84 20 13 0 19 52 33 21 4 58 18 59 45 19 33 25 -11 0 0 23 10 0 46 66 -84 19 43 38 19 23 11 20 35 34 18 30 26 19 2 56 -10 0 0 23 11 20 46 67 -83 19 13 9 18 52 42 20 5 4 17 59 57 18 31 19 - 9 0 0 23 12 39 46 68 -83 18 41 32 18 21 5 19 33 29 17 28 18 17 58 35 - 8 0 0 23 14 0 47 69 -82 18 8 48 17 48 20 19 0 49 16 55 30 17 24 42 - 7 0 0 23 15 21 47 70 -82 17 34 57 17 14 27 18 27 2 16 21 31 16 49 42 - 6 0 0 23 16 42 47 71 -81 16 59 57 16 39 24 17 52 8 15 46 22 16 13 31 - 5 0 0 23 18 4 47 72 -80 16 23 49 16 3 13 17 16 8 15 10 1 15 36 11 - 4 0 0 23 19 26 47 73 -80 15 46 31 15 25 50 16 39 0 14 32 28 14 57 40 - 3 0 0 23 20 49 47 74 -79 15 8 2 14 47 17 16 0 43 13 53 42 14 17 57 - 2 0 0 23 22 12 47 75 -78 14 28 22 14 7 31 15 21 16 13 13 41 13 37 0 - 1 0 0 23 23 35 47 77 -77 13 47 28 13 26 31 14 40 38 12 32 24 12 54 48 0 0 0 23 24 59 47 78 -76 13 5 20 12 44 15 13 58 48 11 49 49 12 11 20 1 0 0 23 26 23 47 79 -75 12 21 55 12 0 42 13 15 43 11 5 55 Latitude Latitude Latitude Latitude 11 0 0 2 34 42 23 28 37 46 80 -74 2 48 35 2 20 45 3 58 23 1 7 56 10 0 0 3 51 3 23 30 25 46 82 -73 4 4 33 3 37 29 5 12 34 2 26 45 9 0 0 5 4 36 23 32 10 45 83 -72 5 17 46 4 51 22 6 24 8 3 42 30 8 0 0 6 15 31 23 33 51 45 84 -70 6 28 22 6 2 36 7 33 15 4 55 26 7 0 0 7 23 56 23 35 29 45 85 -69 7 36 31 7 11 18 8 40 1 6 5 41 6 0 0 8 30 1 23 37 4 44 86 -68 8 42 20 8 17 39 9 44 35 7 13 27 5 0 0 9 33 52 23 38 36 43 87 -67 9 45 56 9 21 44 10 47 1 8 18 51 4 0 0 10 35 35 23 40 5 43 88 -66 10 47 26 10 23 41 11 47 25 9 21 59 3 0 0 11 35 15 23 41 32 42 89 -65 11 46 54 11 23 34 12 45 52 10 22 59 2 0 0 12 32 58 23 42 55 42 90 -64 12 44 25 12 21 28 13 42 26 11 21 56 1 0 0 13 28 47 23 44 17 41 90 -63 13 40 4 13 17 28 14 37 12 12 18 55 0 0 0 14 22 48 23 45 35 40 91 -62 14 33 54 14 11 39 15 30 12 13 14 0 - 1 0 0 15 15 2 23 46 52 40 92 -61 15 25 59 15 4 3 16 21 30 14 7 16 - 2 0 0 16 5 35 23 48 6 39 92 -60 16 16 23 15 54 45 17 11 9 14 58 46 - 3 0 0 16 54 28 23 49 17 38 92 -59 17 5 7 16 43 47 17 59 11 15 48 33 - 4 0 0 17 41 45 23 50 27 38 93 -58 17 52 16 17 31 12 18 45 40 16 36 41 - 5 0 0 18 27 28 23 51 34 37 93 -57 18 37 52 18 17 3 19 30 38 17 23 12 - 6 0 0 19 11 40 23 52 39 36 93 -56 19 21 57 19 1 22 20 14 7 18 8 9 - 7 0 0 19 54 23 23 53 42 35 94 -56 20 4 33 19 44 12 20 56 10 18 51 35 - 8 0 0 20 35 40 23 54 43 35 94 -55 20 45 43 20 25 35 21 36 47 19 33 32 - 9 0 0 21 15 31 23 55 42 34 94 -54 21 25 28 21 5 32 22 16 2 20 14 3 - 10 0 0 21 54 0 23 56 40 33 94 -53 22 3 51 21 44 7 22 53 55 20 53 8 - 11 0 0 22 31 7 23 57 35 32 94 -52 22 40 53 22 21 20 23 30 30 21 30 50 - 12 0 0 23 6 55 23 58 29 32 94 -51 23 16 36 22 57 13 24 5 46 22 7 11 - 13 0 0 23 41 26 23 59 20 31 94 -51 23 51 1 23 31 49 24 39 47 22 42 13 - 14 0 0 24 14 40 24 0 11 30 94 -50 24 24 11 24 5 8 25 12 33 23 15 56 - 15 0 0 24 46 39 24 0 59 29 94 -49 24 56 6 24 37 12 25 44 5 23 48 24 - 16 0 0 25 17 25 24 1 46 29 94 -48 25 26 47 25 8 2 26 14 25 24 19 36 - 17 0 0 25 46 59 24 2 31 28 94 -47 25 56 17 25 37 39 26 43 35 24 49 35 - 18 0 0 26 15 21 24 3 15 27 94 -47 26 24 36 26 6 6 27 11 34 25 18 21 - 19 0 0 26 42 34 24 3 57 26 94 -46 26 51 45 26 33 22 27 38 26 25 45 56 - 20 0 0 27 8 38 24 4 38 25 93 -45 27 17 46 26 59 30 28 4 10 26 12 21 - 21 0 0 27 33 35 24 5 17 25 93 -45 27 42 39 27 24 29 28 28 47 26 37 37 - 22 0 0 27 57 24 24 5 55 24 93 -44 28 6 26 27 48 22 28 52 19 27 1 45 - 23 0 0 28 20 8 24 6 31 23 93 -43 28 29 7 28 11 8 29 14 46 27 24 46 - 24 0 0 28 41 47 24 7 6 22 93 -42 28 50 43 28 32 50 29 36 9 27 46 40 - 25 0 0 29 2 21 24 7 40 22 92 -42 29 11 15 28 53 26 29 56 29 28 7 29 - 26 0 0 29 21 52 24 8 13 21 92 -41 29 30 44 29 12 59 30 15 47 28 27 13 - 27 0 0 29 40 20 24 8 44 20 92 -40 29 49 10 29 31 29 30 34 3 28 45 53 - 28 0 0 29 57 46 24 9 14 19 91 -40 30 6 33 29 48 57 30 51 18 29 3 30 - 29 0 0 30 14 9 24 9 42 19 91 -39 30 22 55 30 5 22 31 7 32 29 20 3 - 30 0 0 30 29 32 24 10 10 18 91 -38 30 38 16 30 20 46 31 22 46 29 35 34 - 31 0 0 30 43 53 24 10 36 17 90 -38 30 52 37 30 35 8 31 37 0 29 50 2 - 32 0 0 30 57 13 24 11 1 16 90 -37 31 5 56 30 48 30 31 50 15 30 3 29 - 33 0 0 31 9 34 24 11 24 15 89 -36 31 18 15 31 0 50 32 2 30 30 15 53 - 34 0 0 31 20 53 24 11 47 15 89 -36 31 29 35 31 12 11 32 13 46 30 27 17 - 35 0 0 31 31 13 24 12 9 14 89 -35 31 39 54 31 22 31 32 24 4 30 37 38 - 36 0 0 31 40 33 24 12 29 13 88 -35 31 49 14 31 31 51 32 33 22 30 46 59 - 37 0 0 31 48 52 24 12 48 12 88 -34 31 57 33 31 40 10 32 41 42 30 55 17 - 38 0 0 31 56 11 24 13 6 12 87 -33 32 4 53 31 47 29 32 49 3 31 2 35 - 39 0 0 32 2 30 24 13 23 11 87 -33 32 11 12 31 53 47 32 55 24 31 8 50 - 40 0 0 32 7 48 24 13 39 10 86 -32 32 16 30 31 59 4 33 0 46 31 14 2 - 41 0 0 32 12 4 24 13 53 9 86 -31 32 20 48 32 3 19 33 5 9 31 18 12 - 42 0 0 32 15 19 24 14 6 8 85 -31 32 24 4 32 6 33 33 8 31 31 21 19 - 43 0 0 32 17 31 24 14 19 8 85 -30 32 26 18 32 8 44 33 10 52 31 23 22 - 44 0 0 32 18 41 24 14 30 7 84 -30 32 27 29 32 9 51 33 12 12 31 24 20 - 45 0 0 32 18 46 24 14 40 6 84 -29 32 27 36 32 9 55 33 12 29 31 24 12 - 46 0 0 32 17 47 24 14 49 5 83 -28 32 26 39 32 8 53 .. .. .. 31 22 57 - 47 0 0 32 15 41 24 14 56 4 83 -28 32 24 36 32 6 45 .. .. .. 31 20 35 - 48 0 0 32 12 29 24 15 2 4 82 -27 32 21 27 32 3 29 .. .. .. 31 17 3 - 49 0 0 32 8 7 24 15 8 3 82 -27 32 17 8 31 59 4 .. .. .. 31 12 20 - 50 0 0 32 2 35 24 15 11 2 81 -26 32 11 40 31 53 28 .. .. .. 31 6 24 - 51 0 0 31 55 51 24 15 14 1 81 -25 32 5 0 31 46 40 .. .. .. 30 59 13 - 52 0 0 31 47 53 24 15 15 0 80 -25 31 57 7 31 38 37 .. .. .. .. .. .. Uncertainty in time = +/- 44 secs Prediction of 2012 Jun 21.0 Data for the target star ------------------------ * name: TYC 0604-00741-1 * constellation : Pisces * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 00 49 36.4210 DE: +08 21 32.057 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .036, .039 ) * V mag [mag]: 9.6 * B mag [mag]: 10.8 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1007) Pawlowia approx. diameter [km]: 24 approx. diameter ["]: .020 distance from Earth [AU]: 1.66700 * orbital information: orbit source: Preston date of fit: 2012 Jun 21 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 1340 number of rejected observations: 48 time covered by the observations: 1923 Oct 30 - 2011 Jul 08 1 sigma uncertainty ellipse (major, minor, PA): 0.037, 0.020, 66° remarks: * orbital elements for (1007) Pawlowia : Mean anomaly = 336.58119440 deg Arg. of pericenter = 77.98958311 deg Long. of node = 307.18729665 deg Inclination = 2.54082417 deg Eccentricity = 0.10994083 Semimajor axis = 2.70694474 AU Perihelion dist = 2.40934098 AU Mag: H = 11.20, G = 0.15 Epoch of elements : MJD 56155.97300000 TDT (2012 Aug 16.973) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Aug 16 1007 Pawlowia 23h 20.1m UT 9.6 0 49 36.421 8 21 32.06TYC 0604-00741-1 10.8 15.2 24 17.3 1.667 -0.072 4.01 56.6327 8.358 -168.99 13.36 23.3346 -0.66134 -0.17017 -0.19893 0.76206 -0.00383 -0.00180 2000 335.2593582012 811.00000 77.989583307.187297 2.5408240.10994083 2.7069447 2.409341011.2 5.00.15 RATE 2.2130180 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.051 0.044 78 3.56 0.051 0 0 0-3 056099.0020120816_0741-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Jun 21, 01:27 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org