Update for (98) Ianthe - November 23/24, 2003

Update computed by Jan Manek; issued 17 Nov 2003 23:17 +0100 (CET)

Jan Manek's update

                  IOTA/IOTA-ES occultation update for
         (98) Ianthe / TYC 3365-01124-1 on November 23/24, 2003
      visible from N Vietnam, China, Khazachstan, Russia, S Belarus,
             Poland, N Czechia, middle Germany and N France


Summary

In the night of November 23/24, 2003 a faint 11.6 mag star TYC 3365-01124-1 will be occulted by a 109 km asteroid (98) Ianthe. This update is based on USNO/Flagstaff, TMO and Ondrejov astrometry for the asteroid and UCAC2 star position.

The updated path shows ~1 path width south shift with no time shift compared to Edwin Goffin's nominal prediction.

Updated path runs due to south shift over N Vietnam ~20:26.5 UT, China 20:27-20:32 UT, Khazachstan around 20:34 UT with Almaty in path, Russia around 20:37.5 UT, S Belarus ~20:38.0 UT, Poland ~20:40.0 UT with Warszaw, Lodz and Wroclaw in path, N Czechia ~20:40.5 UT, middle Germany ~20:41.0 UT and N France ~20:41.7 UT with Paris just north of N limit. Please check the path chart for details.

Here is current station list for observers and European cities.

Clear sky and good luck !!!

The event at one glimpse: * date and approx. UT time of event: November 23, 2003 @ 20:41 UT (Europe) * magnitude of target star: 11.6 * magnitude drop [mag]: 1.4 * estimated maximum duration [s]: 12.2 * path description: given above * Goffin's original chart reference: A03_1106 The occultation path: * approximate ground width [km]: 110 * uncertainty [path widths]: 0.5 * uncertainty in time [s]: 7 * map: below * remarks: Path uncertainties are given according to nominal star position errors and expected asteroid positional accuracy. Data for the target star: * name: TYC 3365-01124-1 * constellation: Auriga * J2000 position [h,m,s; o,',"]: 05h 50m 10.0644s; +47o 47' 35.797" * position source: UCAC2 * estimated accuracy ["]: 0.03" (0.02", 0.02") * V mag [mag]: 11.56 * B-V [mag]: +0.12 * remarks: Target star is in north Auriga, about 3.3 degrees NW of 1.9 mag star beta Aurigae = SAO 40750. !!! IMPORTANT !!! Purple stars in identification chart are so called 'non-star' objects in GSC; in dense fields the 'non-stars' are often real stars or blends of close pairs. Be careful about this. Close finding chart (prepared in GUIDE8): * occulted star is in center - labeled with cross * field is 3.0x3.0 degrees * limiting magnitude is 12.5 * labeled stars have indicated SAO numbers * remarks: Second chart shows 30' blowup to show correctly the star in field.

Data for the minor planet: * general information: number, name: (98) Ianthe approx. diameter [km]: 109 * orbital information orbit source: calculation Manek source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen), Ondrejov (Kusnirak, Sarounova, Manek) number of used observations: 116 USNO, 6 TMO, 3 Ondrejov number of rejected observations: 34 USNO time covered by the observations: 1998 09 13 - 2003 11 08 rms residuals ["] (RA,DE): 0.06", 0.09" estimated positional accuracy at epoch of event ["]: 0.05", 0.05" remarks: Data for the event: * UT date and time of least geocentric approach: 20:33.1 UT * approx. V mag of minor planet at event [mag]: 12.6 * geocentric parallax of minor planet ["]: 5.493 * magnitude drop [mag]: 1.4 * estimated maximum duration [s]: 12.2 * apparent motion of minor planet ["/h]: 27.75 * angular distance to moon, phase of moon [deg,%]: 144, 0% * remarks: Elements for WinOccult: ============ cut here =========================================== 2003 Nov 23 98 Ianthe 20h 33.1m UT 11.6 5 50 10.064 47 47 35.80TYC 3365-01124-1 11.7 12.6 109 12.2 1.601 -2.284 15.53 76.865 47.789 228.33 -20.39 20.5516 -.03778 -.05631 -4.18669 2.82883 -0.00261 -0.00219 2000 303.21705820031117.00000158.822008354.14502015.616768 0.189499342.684468022.175763098.845 0.15 RATE 2.2408700 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 ============ cut here =========================================== Calculator(s): Jan Manek

Updated path location for (98) Ianthe on November 23/24, 2003

Updated path location for (98) Ianthe on November 23/24, 2003

Path coordinates: Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 ...................................... shortened ............................................. o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude 120 0 0 3 29 54 20 23 15 34 328 -21 4 20 53 2 38 46 5 12 47 1 46 28 119 0 0 4 53 39 20 23 27 35 328 -22 5 44 21 4 2 50 6 35 57 3 10 50 118 0 0 6 16 29 20 23 39 37 328 -23 7 6 53 5 25 59 7 58 9 4 34 19 117 0 0 7 38 19 20 23 52 39 328 -25 8 28 22 6 48 8 9 19 19 5 56 50 116 0 0 8 59 3 20 24 4 40 328 -26 9 48 45 8 9 13 10 39 21 7 18 16 115 0 0 10 18 36 20 24 18 42 328 -27 11 7 57 9 29 9 11 58 11 8 38 34 114 0 0 11 36 56 20 24 31 43 328 -29 12 25 55 10 47 51 13 15 46 9 57 40 113 0 0 12 53 58 20 24 45 45 328 -30 13 42 34 12 5 17 14 32 2 11 15 30 112 0 0 14 9 40 20 24 59 47 328 -31 14 57 52 13 21 22 15 46 57 12 32 0 111 0 0 15 23 58 20 25 13 48 328 -32 16 11 47 14 36 5 17 0 27 13 47 7 110 0 0 16 36 51 20 25 27 50 328 -33 17 24 15 15 49 22 18 12 31 15 0 50 109 0 0 17 48 17 20 25 41 51 327 -35 18 35 16 17 1 13 19 23 7 16 13 6 108 0 0 18 58 14 20 25 56 53 327 -36 19 44 48 18 11 35 20 32 14 17 23 54 107 0 0 20 6 40 20 26 10 54 327 -37 20 52 49 19 20 26 21 39 50 18 33 12 106 0 0 21 13 35 20 26 24 55 327 -38 21 59 19 20 27 47 22 45 54 19 40 59 105 0 0 22 18 59 20 26 39 57 327 -39 23 4 18 21 33 36 23 50 27 20 47 14 104 0 0 23 22 51 20 26 53 58 327 -40 24 7 44 22 37 54 24 53 28 21 51 58 103 0 0 24 25 10 20 27 8 59 327 -41 25 9 39 23 40 39 25 54 57 22 55 9 102 0 0 25 25 58 20 27 22 61 326 -42 26 10 1 24 41 52 26 54 54 23 56 49 101 0 0 26 25 15 20 27 36 62 326 -43 27 8 52 25 41 34 27 53 19 24 56 56 100 0 0 27 23 0 20 27 50 63 326 -44 28 6 13 26 39 44 28 50 14 25 55 32 99 0 0 28 19 15 20 28 4 64 326 -45 29 2 3 27 36 24 29 45 39 26 52 38 98 0 0 29 14 0 20 28 18 66 326 -45 29 56 24 28 31 34 30 39 35 27 48 14 97 0 0 30 7 18 20 28 32 67 326 -46 30 49 17 29 25 16 31 32 4 28 42 21 96 0 0 30 59 8 20 28 46 68 326 -47 31 40 42 30 17 30 32 23 5 29 35 0 95 0 0 31 49 31 20 28 59 69 326 -48 32 30 42 31 8 18 33 12 41 30 26 12 94 0 0 32 38 30 20 29 12 70 326 -48 33 19 18 31 57 40 34 0 53 31 15 59 93 0 0 33 26 6 20 29 26 71 326 -49 34 6 31 32 45 39 34 47 41 32 4 21 92 0 0 34 12 20 20 29 39 72 327 -50 34 52 21 33 32 16 35 33 9 32 51 22 91 0 0 34 57 13 20 29 52 73 327 -50 35 36 52 34 17 32 36 17 17 33 37 0 90 0 0 35 40 47 20 30 4 74 327 -51 36 20 4 35 1 28 37 0 7 34 21 19 89 0 0 36 23 4 20 30 17 75 328 -52 37 1 59 35 44 7 37 41 40 35 4 20 88 0 0 37 4 5 20 30 29 76 328 -52 37 42 39 36 25 29 38 21 58 35 46 5 87 0 0 37 43 52 20 30 41 77 329 -53 38 22 5 37 5 37 39 1 2 36 26 34 86 0 0 38 22 26 20 30 53 78 330 -53 39 0 18 37 44 31 39 38 55 37 5 49 85 0 0 38 59 48 20 31 5 79 331 -54 39 37 21 38 22 14 40 15 37 37 43 53 84 0 0 39 36 2 20 31 17 80 332 -54 40 13 15 38 58 47 40 51 11 38 20 46 83 0 0 40 11 7 20 31 28 81 334 -55 40 48 1 39 34 12 41 25 37 38 56 30 82 0 0 40 45 6 20 31 40 81 337 -55 41 21 41 40 8 30 41 58 58 39 31 7 81 0 0 41 18 0 20 31 51 82 339 -56 41 54 16 40 41 42 42 31 15 40 4 39 80 0 0 41 49 51 20 32 2 83 343 -56 42 25 49 41 13 51 43 2 30 40 37 6 79 0 0 42 20 39 20 32 13 83 348 -56 42 56 20 41 44 57 43 32 43 41 8 30 78 0 0 42 50 28 20 32 24 84 353 -57 43 25 52 42 15 2 44 1 57 41 38 53 77 0 0 43 19 17 20 32 34 84 1 -57 43 54 24 42 44 8 44 30 12 42 8 16 76 0 0 43 47 9 20 32 44 85 9 -57 44 22 0 43 12 16 44 57 31 42 36 40 75 0 0 44 14 4 20 32 55 85 20 -57 44 48 39 43 39 27 45 23 55 43 4 8 74 0 0 44 40 4 20 33 5 85 31 -58 45 14 24 44 5 43 45 49 24 43 30 39 73 0 0 45 5 11 20 33 15 85 42 -58 45 39 16 44 31 5 46 14 1 43 56 16 72 0 0 45 29 25 20 33 24 85 52 -58 46 3 16 44 55 34 46 37 46 44 21 0 71 0 0 45 52 48 20 33 34 84 60 -58 46 26 25 45 19 11 47 0 41 44 44 51 70 0 0 46 15 21 20 33 44 84 67 -59 46 48 44 45 41 57 47 22 46 45 7 52 69 0 0 46 37 5 20 33 53 84 73 -59 47 10 15 46 3 55 47 44 3 45 30 2 68 0 0 46 58 2 20 34 2 83 77 -59 47 30 59 46 25 4 48 4 34 45 51 25 67 0 0 47 18 11 20 34 11 83 80 -59 47 50 56 46 45 26 48 24 18 46 11 59 66 0 0 47 37 35 20 34 20 82 83 -59 48 10 8 47 5 1 48 43 18 46 31 47 65 0 0 47 56 14 20 34 29 81 85 -59 48 28 35 47 23 52 49 1 34 46 50 50 64 0 0 48 14 9 20 34 38 81 87 -59 48 46 19 47 41 58 49 19 6 47 9 8 63 0 0 48 31 22 20 34 47 80 88 -59 49 3 21 47 59 22 49 35 57 47 26 42 62 0 0 48 47 52 20 34 55 80 89 -59 49 19 41 48 16 2 49 52 6 47 43 33 61 0 0 49 3 41 20 35 4 79 90 -59 49 35 20 48 32 2 50 7 35 47 59 42 60 0 0 49 18 50 20 35 12 79 91 -59 49 50 19 48 47 20 50 22 25 48 15 11 59 0 0 49 33 19 20 35 20 78 91 -59 50 4 39 49 1 58 50 36 35 48 29 59 58 0 0 49 47 10 20 35 28 77 91 -59 50 18 21 49 15 58 50 50 8 48 44 7 57 0 0 50 0 22 20 35 36 77 92 -59 50 31 25 49 29 18 51 3 3 48 57 36 56 0 0 50 12 57 20 35 44 76 92 -59 50 43 51 49 42 1 51 15 22 49 10 27 55 0 0 50 24 55 20 35 52 75 92 -59 50 55 41 49 54 7 51 27 4 49 22 41 54 0 0 50 36 16 20 36 0 75 92 -59 51 6 56 50 5 36 51 38 11 49 34 17 53 0 0 50 47 2 20 36 8 74 92 -59 51 17 35 50 16 29 51 48 43 49 45 17 52 0 0 50 57 13 20 36 15 74 91 -59 51 27 39 50 26 46 51 58 40 49 55 41 51 0 0 51 6 49 20 36 23 73 91 -59 51 37 9 50 36 29 52 8 4 50 5 30 50 0 0 51 15 51 20 36 30 72 91 -59 51 46 5 50 45 37 52 16 54 50 14 44 49 0 0 51 24 20 20 36 38 72 90 -59 51 54 28 50 54 11 52 25 11 50 23 24 48 0 0 51 32 15 20 36 45 71 90 -59 52 2 18 51 2 11 52 32 56 50 31 30 47 0 0 51 39 37 20 36 52 71 90 -59 52 9 35 51 9 38 52 40 8 50 39 2 46 0 0 51 46 27 20 37 0 70 89 -59 52 16 21 51 16 32 52 46 49 50 46 0 45 0 0 51 52 45 20 37 7 69 89 -58 52 22 34 51 22 54 52 52 58 50 52 26 44 0 0 51 58 30 20 37 14 69 88 -58 52 28 16 51 28 44 52 58 36 50 58 20 43 0 0 52 3 44 20 37 21 68 88 -58 52 33 27 51 34 1 53 3 44 51 3 41 42 0 0 52 8 27 20 37 28 68 87 -58 52 38 6 51 38 47 53 8 20 51 8 30 41 0 0 52 12 39 20 37 35 67 87 -58 52 42 15 51 43 2 53 12 26 51 12 47 40 0 0 52 16 20 20 37 42 67 86 -58 52 45 54 51 46 45 53 16 2 51 16 33 39 0 0 52 19 30 20 37 48 66 86 -57 52 49 2 51 49 57 53 19 8 51 19 47 38 0 0 52 22 9 20 37 55 65 85 -57 52 51 40 51 52 38 53 21 44 51 22 30 37 0 0 52 24 18 20 38 2 65 85 -57 52 53 47 51 54 49 53 23 50 51 24 42 36 0 0 52 25 57 20 38 9 64 84 -57 52 55 25 51 56 28 53 25 27 51 26 23 35 0 0 52 27 6 20 38 15 64 83 -57 52 56 32 51 57 38 53 26 34 51 27 33 34 0 0 52 27 44 20 38 22 63 83 -56 52 57 10 51 58 16 53 27 11 51 28 12 33 0 0 52 27 52 20 38 29 62 82 -56 52 57 18 51 58 24 53 27 19 51 28 20 32 0 0 52 27 30 20 38 35 62 82 -56 52 56 56 51 58 2 53 26 57 51 27 57 31 0 0 52 26 37 20 38 42 61 81 -56 52 56 4 51 57 9 53 26 6 51 27 4 30 0 0 52 25 14 20 38 48 61 80 -55 52 54 42 51 55 45 53 24 45 51 25 39 29 0 0 52 23 21 20 38 55 60 80 -55 52 52 50 51 53 50 53 22 54 51 23 43 28 0 0 52 20 57 20 39 1 60 79 -55 52 50 28 51 51 25 53 20 34 51 21 16 27 0 0 52 18 3 20 39 7 59 78 -55 52 47 36 51 48 29 53 17 43 51 18 18 26 0 0 52 14 38 20 39 14 58 78 -54 52 44 13 51 45 1 53 14 23 51 14 48 25 0 0 52 10 42 20 39 20 58 77 -54 52 40 20 51 41 2 53 10 32 51 10 46 24 0 0 52 6 14 20 39 27 57 76 -54 52 35 55 51 36 32 53 6 11 51 6 13 23 0 0 52 1 15 20 39 33 57 76 -53 52 31 0 51 31 30 53 1 19 51 1 7 22 0 0 51 55 45 20 39 39 56 75 -53 52 25 33 51 25 55 52 55 56 50 55 29 21 0 0 51 49 42 20 39 46 55 74 -53 52 19 34 51 19 49 52 50 1 50 49 18 20 0 0 51 43 7 20 39 52 55 74 -52 52 13 4 51 13 9 52 43 35 50 42 34 19 0 0 51 35 59 20 39 58 54 73 -52 52 6 1 51 5 57 52 36 37 50 35 17 18 0 0 51 28 18 20 40 4 54 72 -52 51 58 25 50 58 11 52 29 6 50 27 25 17 0 0 51 20 4 20 40 11 53 72 -51 51 50 16 50 49 51 52 21 3 50 19 0 16 0 0 51 11 16 20 40 17 52 71 -51 51 41 34 50 40 56 52 12 27 50 9 59 15 0 0 51 1 53 20 40 23 52 70 -51 51 32 17 50 31 27 52 3 16 50 0 24 14 0 0 50 51 55 20 40 29 51 70 -50 51 22 26 50 21 23 51 53 32 49 50 13 13 0 0 50 41 22 20 40 35 50 69 -50 51 11 59 50 10 42 51 43 13 49 39 25 12 0 0 50 30 12 20 40 42 50 68 -49 51 0 57 49 59 25 51 32 18 49 28 0 11 0 0 50 18 26 20 40 48 49 68 -49 50 49 19 49 47 31 51 20 48 49 15 58 10 0 0 50 6 2 20 40 54 48 67 -49 50 37 3 49 34 59 51 8 41 49 3 18 9 0 0 49 53 0 20 41 0 48 66 -48 50 24 10 49 21 49 50 55 56 48 49 59 8 0 0 49 39 20 20 41 6 47 66 -48 50 10 39 49 8 0 50 42 34 48 36 0 7 0 0 49 25 0 20 41 13 46 65 -47 49 56 28 48 53 30 50 28 33 48 21 21 6 0 0 49 9 59 20 41 19 46 64 -47 49 41 37 48 38 20 50 13 52 48 6 0 5 0 0 48 54 17 20 41 25 45 64 -47 49 26 6 48 22 28 49 58 31 47 49 58 4 0 0 48 37 54 20 41 31 44 63 -46 49 9 53 48 5 53 49 42 29 47 33 12 3 0 0 48 20 47 20 41 37 44 62 -46 48 52 57 47 48 35 49 25 44 47 15 43 2 0 0 48 2 56 20 41 43 43 61 -45 48 35 18 47 30 32 49 8 17 46 57 28 1 0 0 47 44 20 20 41 49 42 61 -45 48 16 54 47 11 44 48 50 5 46 38 28 0 0 0 47 24 58 20 41 56 42 60 -44 47 57 44 46 52 10 48 31 9 46 18 41 - 1 0 0 47 4 49 20 42 2 41 59 -44 47 37 48 46 31 48 48 11 25 45 58 5 - 2 0 0 46 43 51 20 42 8 40 59 -43 47 17 4 46 10 36 47 50 55 45 36 40 - 3 0 0 46 22 4 20 42 14 39 58 -43 46 55 31 45 48 35 47 29 36 45 14 25 - 4 0 0 45 59 26 20 42 20 38 57 -42 46 33 7 45 25 43 47 7 27 44 51 17 - 5 0 0 45 35 56 20 42 26 38 57 -41 46 9 52 45 1 58 46 44 27 44 27 17 - 6 0 0 45 11 32 20 42 32 37 56 -41 45 45 44 44 37 19 46 20 35 44 2 22 - 7 0 0 44 46 14 20 42 38 36 55 -40 45 20 41 44 11 44 45 55 48 43 36 31 - 8 0 0 44 19 59 20 42 44 35 55 -40 44 54 43 43 45 13 45 30 7 43 9 43 - 9 0 0 43 52 46 20 42 50 34 54 -39 44 27 47 43 17 43 45 3 28 42 41 55 - 10 0 0 43 24 34 20 42 56 34 54 -38 43 59 52 42 49 13 44 35 51 42 13 8 - 11 0 0 42 55 20 20 43 2 33 53 -38 43 30 57 42 19 42 44 7 14 41 43 18 - 12 0 0 42 25 4 20 43 8 32 52 -37 43 1 0 41 49 7 43 37 36 41 12 24 - 13 0 0 41 53 44 20 43 14 31 52 -36 42 29 58 41 17 27 43 6 54 40 40 24 - 14 0 0 41 21 17 20 43 19 30 51 -36 41 57 51 40 44 40 42 35 7 40 7 17 - 15 0 0 40 47 42 20 43 25 29 50 -35 41 24 37 40 10 45 42 2 13 39 33 1 - 16 0 0 40 12 57 20 43 31 28 50 -34 40 50 13 39 35 39 41 28 10 38 57 33 ...................................... shortened ............................................. ---------------------------------------------------------------------------- Jan Manek Stefanik Observatory Private : Petrin 205 Werichova 950 118 46 Praha 1 152 00 Praha 5 - Barrandov |_|_| Czech Republic Czech Republic / \ Internet : jan.manek AT worldonline.cz |-O-O-| --------------------------------------------------------------------U---U---

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