Update for (63) Ausonia - September 6/7, 2003

Update computed by Jan Manek; issued 06 Sep 2003 02:33 +0200 (CEST)

Jan Manek's update

                 IOTA/IOTA-ES occultation update for
          (63) Ausonia / PPMS 709674 on September 6/7, 2003
               visible from N Norway and NE Canada

Summary

In the night of September 6/7, 2003 a faint 10.4 mag star PPMS 709674 will be occulted by a 108 km asteroid (63) Ausonia. This update is based on USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.

The updated path shows ~4 path width north shift with time ~0.7 minutes later compared to Edwin Goffin's nominal prediction.

Updated path runs due to north shift over N Norway ~0:52.0 UT and later over north-east Canada around 1:00.0 UT. Please check the path chart for details.

Clear sky and good luck !!!

The event at one glimpse: * date and approx. UT time of event: September 7, 2003 @ 0:52 UT (Europe) 1:00 UT (Canada) * magnitude of target star: 10.4 * magnitude drop [mag]: 0.7 * estimated maximum duration [s]: 11.1 * path description: given above * Goffin's original chart reference: A03_0921 The occultation path: * approximate ground width [km]: 250 * uncertainty [path widths]: 0.40 * uncertainty in time [s]: 5 * map: below * remarks: Path uncertainties are given according to nominal star position errors and expected asteroid positional accuracy. Data for the target star: * name: PPMS 709674 = GSC 5244-00750 * constellation: Pisces * J2000 position [h,m,s; o,',"]: 23h 28m 11.5876s; -01o 21' 46.522" * position source: UCAC2 * estimated accuracy ["]: 0.03" (0.02", 0.02") * V mag [mag]: 10.4 * B-V [mag]: +?.?? * remarks: Target star is in west Pisces, about 2.7 degrees south of 4.9 mag star kappa Piscii = SAO 128186. !!! 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 13.0 * 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: (63) Ausonia approx. diameter [km]: 108 * orbital information orbit source: calculation Manek source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen) number of used observations: 103 USNO, 7 TMO number of rejected observations: 15 USNO, 2 TMO time covered by the observations: 1998 02 24 - 2003 08 29 rms residuals ["] (RA,DE): 0.06", 0.06" estimated positional accuracy at epoch of event ["]: 0.04", 0.04" remarks: Data for the event: * UT date and time of least geocentric approach: 00:55.8 UT * approx. V mag of minor planet at event [mag]: 10.2 * geocentric parallax of minor planet ["]: 6.870 * magnitude drop [mag]: 0.7 * estimated maximum duration [s]: 11.1 * apparent motion of minor planet ["/h]: 37.84 * angular distance to moon, phase of moon [deg,%]: 53, 85% * remarks: Elements for WinOccult: ============ cut here =========================================== 2003 Sep 07 63 Ausonia 0h 55.8m UT 10.4 23 28 11.588- 1 21 46.52PPMS 709674 0.0 10.2 108 11.1 1.280 -2.476 -7.33 -7.597 -1.359 -194.37 6.29 0.9296 -.17319 .87767 -5.40188 -1.06645 -0.00062 -0.00045 2000 58.70455692003 829.00000295.969908337.9569455.788347 0.126194822.395666192.093345547.555 0.25 RATE 2.6580590 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 ============ cut here =========================================== Calculator(s): Jan Manek

Updated path location for (63) Ausonia on September 6/7, 2003

Updated path location for (63) Ausonia on September 6/7, 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 Latitude Latitude Latitude Latitude ...................................... shortened ............................................. o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " 42 0 0 72 44 15 0 51 23 10 230 -4 73 56 4 71 35 31 74 53 1 70 45 6 41 0 0 72 37 58 0 51 24 10 229 -4 73 49 56 71 29 6 74 47 0 70 38 36 40 0 0 72 31 32 0 51 26 11 228 -4 73 43 38 71 22 33 74 40 50 70 31 57 39 0 0 72 24 57 0 51 27 11 227 -5 73 37 13 71 15 50 74 34 32 70 25 10 38 0 0 72 18 14 0 51 29 11 226 -5 73 30 38 71 9 0 74 28 5 70 18 14 37 0 0 72 11 22 0 51 30 12 225 -5 73 23 55 71 2 0 74 21 29 70 11 10 36 0 0 72 4 22 0 51 32 12 224 -6 73 17 3 70 54 52 74 14 44 70 3 57 35 0 0 71 57 12 0 51 34 12 223 -6 73 10 2 70 47 36 74 7 51 69 56 35 34 0 0 71 49 55 0 51 36 12 222 -6 73 2 52 70 40 11 74 0 49 69 49 5 33 0 0 71 42 28 0 51 38 13 221 -6 72 55 34 70 32 37 73 53 38 69 41 26 32 0 0 71 34 53 0 51 40 13 220 -7 72 48 7 70 24 54 73 46 18 69 33 39 31 0 0 71 27 9 0 51 42 13 219 -7 72 40 31 70 17 3 73 38 49 69 25 43 30 0 0 71 19 16 0 51 44 14 218 -7 72 32 46 70 9 4 73 31 11 69 17 39 29 0 0 71 11 14 0 51 46 14 217 -8 72 24 53 70 0 55 73 23 24 69 9 26 28 0 0 71 3 4 0 51 48 14 216 -8 72 16 50 69 52 39 73 15 29 69 1 4 27 0 0 70 54 46 0 51 50 15 215 -8 72 8 39 69 44 13 73 7 24 68 52 35 26 0 0 70 46 18 0 51 53 15 214 -9 72 0 19 69 35 40 72 59 10 68 43 57 25 0 0 70 37 42 0 51 55 15 213 -9 71 51 50 69 26 58 72 50 48 68 35 11 24 0 0 70 28 58 0 51 57 15 212 -9 71 43 13 69 18 7 72 42 16 68 26 16 23 0 0 70 20 5 0 52 0 16 211 -10 71 34 27 69 9 8 72 33 36 68 17 13 22 0 0 70 11 4 0 52 3 16 210 -10 71 25 32 69 0 1 72 24 47 68 8 3 21 0 0 70 1 54 0 52 5 16 209 -10 71 16 28 68 50 46 72 15 49 67 58 44 20 0 0 69 52 36 0 52 8 17 208 -11 71 7 16 68 41 23 72 6 42 67 49 17 19 0 0 69 43 9 0 52 11 17 207 -11 70 57 56 68 31 52 71 57 27 67 39 42 18 0 0 69 33 35 0 52 14 17 206 -11 70 48 27 68 22 12 71 48 3 67 30 0 17 0 0 69 23 52 0 52 17 18 205 -12 70 38 49 68 12 25 71 38 30 67 20 10 16 0 0 69 14 1 0 52 20 18 204 -12 70 29 4 68 2 30 71 28 48 67 10 12 15 0 0 69 4 3 0 52 23 18 203 -12 70 19 10 67 52 28 71 18 59 67 0 6 14 0 0 68 53 57 0 52 26 18 202 -12 70 9 8 67 42 17 71 9 1 66 49 54 13 0 0 68 43 42 0 52 29 19 201 -13 69 58 58 67 32 0 70 58 54 66 39 34 12 0 0 68 33 21 0 52 33 19 200 -13 69 48 40 67 21 35 70 48 40 66 29 7 11 0 0 68 22 52 0 52 36 19 199 -13 69 38 14 67 11 3 70 38 17 66 18 33 10 0 0 68 12 15 0 52 40 20 198 -14 69 27 41 67 0 24 70 27 47 66 7 52 9 0 0 68 1 32 0 52 43 20 197 -14 69 17 0 66 49 38 70 17 8 65 57 5 8 0 0 67 50 41 0 52 47 20 196 -14 69 6 12 66 38 46 70 6 22 65 46 11 7 0 0 67 39 44 0 52 50 20 195 -15 68 55 17 66 27 46 69 55 29 65 35 10 6 0 0 67 28 40 0 52 54 21 194 -15 68 44 15 66 16 41 69 44 28 65 24 4 5 0 0 67 17 29 0 52 58 21 193 -15 68 33 5 66 5 29 69 33 21 65 12 51 4 0 0 67 6 12 0 53 2 21 192 -16 68 21 50 65 54 11 69 22 6 65 1 33 3 0 0 66 54 49 0 53 6 21 191 -16 68 10 27 65 42 48 69 10 44 64 50 9 ...................................... shortened ............................................. - 56 0 0 55 27 34 0 58 32 21 127 -20 56 37 9 54 20 50 57 32 12 53 31 48 - 57 0 0 55 18 48 0 58 37 21 126 -19 56 28 16 54 12 10 57 23 13 53 23 12 - 58 0 0 55 10 13 0 58 42 21 125 -19 56 19 34 54 3 41 57 14 25 53 14 48 - 59 0 0 55 1 51 0 58 47 20 124 -19 56 11 5 53 55 25 57 5 50 53 6 35 - 60 0 0 54 53 40 0 58 52 20 123 -18 56 2 48 53 47 20 56 57 27 52 58 34 - 61 0 0 54 45 42 0 58 58 19 123 -18 55 54 43 53 39 27 56 49 17 52 50 46 - 62 0 0 54 37 57 0 59 2 19 122 -18 55 46 52 53 31 47 56 41 20 52 43 10 - 63 0 0 54 30 24 0 59 7 19 121 -17 55 39 13 53 24 20 56 33 36 52 35 46 - 64 0 0 54 23 5 0 59 12 18 120 -17 55 31 48 53 17 6 56 26 6 52 28 35 - 65 0 0 54 15 58 0 59 17 18 119 -17 55 24 36 53 10 5 56 18 49 52 21 38 - 66 0 0 54 9 6 0 59 21 17 118 -16 55 17 38 53 3 17 56 11 47 52 14 53 - 67 0 0 54 2 27 0 59 26 17 117 -16 55 10 54 52 56 43 56 4 58 52 8 22 - 68 0 0 53 56 2 0 59 30 16 116 -16 55 4 24 52 50 22 55 58 24 52 2 5 - 69 0 0 53 49 51 0 59 34 16 115 -15 54 58 8 52 44 16 55 52 4 51 56 1 - 70 0 0 53 43 55 0 59 38 15 114 -15 54 52 7 52 38 23 55 45 58 51 50 11 - 71 0 0 53 38 12 0 59 42 15 113 -14 54 46 20 52 32 45 55 40 8 51 44 36 - 72 0 0 53 32 45 0 59 46 14 113 -14 54 40 48 52 27 21 55 34 33 51 39 14 - 73 0 0 53 27 32 0 59 50 14 112 -13 54 35 32 52 22 12 55 29 13 51 34 7 - 74 0 0 53 22 34 0 59 53 13 111 -13 54 30 30 52 17 17 55 24 8 51 29 15 - 75 0 0 53 17 52 0 59 57 13 110 -12 54 25 44 52 12 38 55 19 19 51 24 38 - 76 0 0 53 13 24 1 0 0 12 109 -12 54 21 13 52 8 13 55 14 45 51 20 15 - 77 0 0 53 9 12 1 0 3 12 108 -11 54 16 58 52 4 4 55 10 28 51 16 8 - 78 0 0 53 5 16 1 0 7 11 107 -11 54 12 59 52 0 10 55 6 26 51 12 15 - 79 0 0 53 1 35 1 0 9 11 107 -10 54 9 16 51 56 31 55 2 41 51 8 38 - 80 0 0 52 58 10 1 0 12 10 106 -10 54 5 48 51 53 8 54 59 11 51 5 17 - 81 0 0 52 55 1 1 0 15 9 105 -9 54 2 37 51 50 1 54 55 58 51 2 11 - 82 0 0 52 52 8 1 0 17 9 104 -9 53 59 42 51 47 10 54 53 2 50 59 20 - 83 0 0 52 49 31 1 0 20 8 103 -8 53 57 4 51 44 34 54 50 22 50 56 46 - 84 0 0 52 47 10 1 0 22 8 103 -8 53 54 42 51 42 15 54 47 59 50 54 27 - 85 0 0 52 45 6 1 0 24 7 102 -7 53 52 36 51 40 11 54 45 52 50 52 24 - 86 0 0 52 43 18 1 0 26 7 101 -7 53 50 48 51 38 24 54 44 3 50 50 37 - 87 0 0 52 41 46 1 0 27 6 100 -6 53 49 16 51 36 53 54 42 30 50 49 7 - 88 0 0 52 40 32 1 0 29 5 99 -5 53 48 0 51 35 38 54 41 15 50 47 52 - 89 0 0 52 39 33 1 0 30 5 99 -5 53 47 2 51 34 40 54 40 16 50 46 54 ...................................... 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@worldonline.cz |-O-O-| --------------------------------------------------------------------U---U---

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