IOTA/IOTA-ES occultation update for (1903) Adzhimushkaj / TYC 6300-01044-1 event on 2004 Aug 21, 04:48 UT Visible from Canada, W USA Summary ------- On 2004 Aug 21 UT, the 29 km diameter asteroid (1903) Adzhimushkaj will occult a 9.7 mag star in the constellation Sagittarius for observers along a path across Canada, W USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.8 mag to 15.5 mag (the magnitude of the asteroid) for at most 3.8 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Ron Stone, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 32 * date and approx. time of event: 2004 Aug 21, 04:38 - 2004 Aug 21, 04:52 UT * magnitude of target star: 9.7 * magnitude drop [mag]: 5.8 * estimated maximum duration [s]: 3.8 * Moon: 26 % sunlit, 78° distance * Sun: 140° distance * rough path description: Canada, W USA The occultation path -------------------- * approximate projected width [km]: 42 * 1 sigma uncertainty interval [path widths]: +/- 2.05 * 1 sigma uncertainty interval [seconds]: +/- 7.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .041 +/- .030) * 1 sigma uncertainty ellipse (major, minor, PA): ( .041", .030", 92° ) * approx speed of asteroid's shadow [km/s]: 7.7118 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6300-01044-1 by 1903 Adzhimushkaj on 2004 Aug 21 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 - 99 55 12 71 0 0 4 38 44 1 190 -4 -100 31 20 - 99 19 8 -103 0 19 - 96 51 54 -100 28 51 70 0 0 4 38 45 2 189 -5 -101 3 21 - 99 54 26 -103 25 33 - 97 33 56 -101 2 47 69 0 0 4 38 45 3 189 -6 -101 35 47 -100 29 50 -103 51 52 - 98 15 23 -101 36 58 68 0 0 4 38 47 4 188 -7 -102 8 38 -101 5 22 -104 19 12 - 98 56 23 -102 11 26 67 0 0 4 38 48 5 188 -7 -102 41 53 -101 41 3 -104 47 26 - 99 37 2 -102 46 12 66 0 0 4 38 50 6 187 -8 -103 15 33 -102 16 55 -105 16 31 -100 17 25 -103 21 16 65 0 0 4 38 52 7 187 -9 -103 49 36 -102 52 59 -105 46 24 -100 57 37 -103 56 38 64 0 0 4 38 55 8 186 -10 -104 24 3 -103 29 17 -106 17 2 -101 37 42 -104 32 20 63 0 0 4 38 58 9 186 -10 -104 58 54 -104 5 50 -106 48 23 -102 17 43 -105 8 22 62 0 0 4 39 2 10 185 -11 -105 34 9 -104 42 39 -107 20 24 -102 57 44 -105 44 46 61 0 0 4 39 6 11 184 -12 -106 9 49 -105 19 46 -107 53 6 -103 37 48 -106 21 30 60 0 0 4 39 10 12 184 -12 -106 45 53 -105 57 11 -108 26 25 -104 17 56 -106 58 38 59 0 0 4 39 14 13 183 -13 -107 22 24 -106 34 55 -109 0 23 -104 58 11 -107 36 8 58 0 0 4 39 20 14 183 -13 -107 59 20 -107 13 0 -109 34 58 -105 38 36 -108 14 3 57 0 0 4 39 25 15 182 -14 -108 36 43 -107 51 26 -110 10 11 -106 19 12 -108 52 23 56 0 0 4 39 31 16 182 -14 -109 14 33 -108 30 15 -110 45 59 -107 0 2 -109 31 8 55 0 0 4 39 37 17 181 -15 -109 52 51 -109 9 28 -111 22 25 -107 41 7 -110 10 21 54 0 0 4 39 44 18 180 -15 -110 31 38 -109 49 6 -111 59 27 -108 22 29 -110 50 1 53 0 0 4 39 51 19 180 -16 -111 10 55 -110 29 10 -112 37 7 -109 4 9 -111 30 10 52 0 0 4 39 58 20 179 -16 -111 50 42 -111 9 41 -113 15 24 -109 46 10 -112 10 49 51 0 0 4 40 6 21 178 -17 -112 31 0 -111 50 40 -113 54 19 -110 28 33 -112 51 59 50 0 0 4 40 14 22 178 -17 -113 11 51 -112 32 9 -114 33 53 -111 11 19 -113 33 41 49 0 0 4 40 23 23 177 -18 -113 53 16 -113 14 8 -115 14 6 -111 54 30 -114 15 56 48 0 0 4 40 32 24 176 -18 -114 35 15 -113 56 40 -115 54 59 -112 38 8 -114 58 47 47 0 0 4 40 42 25 176 -18 -115 17 51 -114 39 45 -116 36 33 -113 22 14 -115 42 13 46 0 0 4 40 52 26 175 -19 -116 1 3 -115 23 25 -117 18 50 -114 6 51 -116 26 16 45 0 0 4 41 2 27 174 -19 -116 44 54 -116 7 41 -118 1 49 -114 51 59 -117 10 59 44 0 0 4 41 13 28 173 -19 -117 29 25 -116 52 35 -118 45 34 -115 37 40 -117 56 22 43 0 0 4 41 24 29 172 -20 -118 14 38 -117 38 9 -119 30 4 -116 23 57 -118 42 27 42 0 0 4 41 35 29 172 -20 -119 0 34 -118 24 24 -120 15 21 -117 10 51 -119 29 17 41 0 0 4 41 47 30 171 -20 -119 47 15 -119 11 21 -121 1 28 -117 58 24 -120 16 52 40 0 0 4 42 0 31 170 -20 -120 34 42 -119 59 4 -121 48 26 -118 46 38 -121 5 15 39 0 0 4 42 12 32 169 -20 -121 22 59 -120 47 34 -122 36 16 -119 35 35 -121 54 28 38 0 0 4 42 26 33 168 -20 -122 12 7 -121 36 53 -123 25 2 -120 25 17 -122 44 33 37 0 0 4 42 39 34 167 -20 -123 2 7 -122 27 3 -124 14 44 -121 15 47 -123 35 34 36 0 0 4 42 53 35 166 -20 -123 53 4 -123 18 7 -125 5 26 -122 7 8 -124 27 32 35 0 0 4 43 8 35 165 -20 -124 44 59 -124 10 7 -125 57 11 -122 59 21 -125 20 30 34 0 0 4 43 22 36 163 -20 -125 37 55 -125 3 7 -126 50 1 -123 52 29 -126 14 31 33 0 0 4 43 38 37 162 -20 -126 31 56 -125 57 10 -127 43 59 -124 46 37 -127 9 39 32 0 0 4 43 53 38 161 -20 -127 27 4 -126 52 18 -128 39 9 -125 41 46 -128 5 58 31 0 0 4 44 9 38 160 -20 -128 23 24 -127 48 36 -129 35 35 -126 38 0 -129 3 31 30 0 0 4 44 26 39 159 -20 -129 20 59 -128 46 6 -130 33 21 -127 35 24 -130 2 22 29 0 0 4 44 43 40 157 -19 -130 19 54 -129 44 55 -131 32 32 -128 34 1 -131 2 37 28 0 0 4 45 0 40 156 -19 -131 20 14 -130 45 5 -132 33 12 -129 33 55 Latitude Latitude Latitude Latitude -133 0 0 26 7 10 4 45 34 41 153 -18 26 23 54 25 50 33 27 33 58 24 43 42 -134 0 0 25 11 31 4 45 52 42 152 -18 25 27 58 24 55 11 26 36 46 23 49 27 -135 0 0 24 17 15 4 46 9 42 150 -18 24 33 25 24 1 11 25 41 0 22 56 29 -136 0 0 23 24 19 4 46 26 42 149 -17 23 40 13 23 8 31 24 46 40 22 4 49 -137 0 0 22 32 43 4 46 44 43 147 -17 22 48 22 22 17 9 23 53 44 21 14 24 -138 0 0 21 42 25 4 47 1 43 146 -16 21 57 51 21 27 6 23 2 11 20 25 16 -139 0 0 20 53 26 4 47 18 43 144 -16 21 8 38 20 38 20 22 12 0 19 37 22 -140 0 0 20 5 44 4 47 35 43 143 -15 20 20 44 19 50 51 21 23 9 18 50 42 -141 0 0 19 19 19 4 47 52 43 142 -14 19 34 6 19 4 37 20 35 39 18 5 15 -142 0 0 18 34 9 4 48 8 43 140 -14 18 48 44 18 19 39 19 49 27 17 21 2 -143 0 0 17 50 14 4 48 25 43 139 -13 18 4 38 17 35 55 19 4 33 16 38 1 -144 0 0 17 7 33 4 48 41 43 137 -13 17 21 46 16 53 24 18 20 56 15 56 11 -145 0 0 16 26 4 4 48 57 43 136 -12 16 40 8 16 12 6 17 38 34 15 15 31 -146 0 0 15 45 48 4 49 13 43 135 -11 15 59 42 15 31 59 16 57 27 14 36 2 -147 0 0 15 6 44 4 49 29 43 134 -11 15 20 29 14 53 4 16 17 35 13 57 43 -148 0 0 14 28 51 4 49 45 43 132 -10 14 42 26 14 15 19 15 38 55 13 20 32 -149 0 0 13 52 7 4 50 0 42 131 -9 14 5 35 13 38 44 15 1 28 12 44 29 -150 0 0 13 16 33 4 50 16 42 130 -8 13 29 53 13 3 18 14 25 12 12 9 34 -151 0 0 12 42 8 4 50 31 42 129 -8 12 55 20 12 29 0 13 50 6 11 35 45 -152 0 0 12 8 50 4 50 46 41 128 -7 12 21 55 11 55 49 13 16 11 11 3 3 -153 0 0 11 36 41 4 51 0 41 127 -6 11 49 38 11 23 46 12 43 25 10 31 27 -154 0 0 11 5 37 4 51 15 40 126 -5 11 18 29 10 52 50 12 11 47 10 0 56 -155 0 0 10 35 40 4 51 29 40 125 -5 10 48 25 10 22 59 11 41 17 9 31 30 -156 0 0 10 6 49 4 51 43 39 124 -4 10 19 28 9 54 13 11 11 55 9 3 7 -157 0 0 9 39 2 4 51 57 39 123 -3 9 51 35 9 26 32 10 43 38 8 35 48 -158 0 0 9 12 20 4 52 10 38 122 -2 9 24 48 8 59 55 10 16 28 8 9 32 -159 0 0 8 46 42 4 52 24 38 121 -1 8 59 4 8 34 22 9 50 23 7 44 19 -160 0 0 8 22 7 4 52 37 37 121 -1 8 34 25 8 9 52 9 25 23 7 20 8 Data for the target star ------------------------ * name: TYC 6300-01044-1 * constellation : Sagittarius * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 19 16 52.5056 DE: -18 14 36.213 * position source: Pos: UCAC2, pm: UCAC2, pi: * standard error: RA,DE ["]: ( .017, .021 ) * V mag [mag]: 9.7 * B mag [mag]: 10.8 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1903) Adzhimushkaj approx. diameter [km]: 29 approx. diameter ["]: .017 distance from Earth [AU]: 2.31400 * orbital information: orbit source: Preston date of fit: 2004 Jul 22 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 577 number of rejected observations: 19 time covered by the observations: 1938 Oct 26 - 2004 Jul 01 1 sigma uncertainty ellipse (major, minor, PA): 0.037, 0.021, 92° remarks: * orbital elements for (1903) Adzhimushkaj : Mean anomaly = 177.18932193 deg Arg. of pericenter = 347.02273458 deg Long. of node = 135.46122987 deg Inclination = 10.98984785 deg Eccentricity = 0.05121429 Semimajor axis = 3.00082808 AU Perihelion dist = 2.84714279 AU Mag: H = 10.53, G = 0.15 Epoch of elements : MJD 53238.20000000 TDT (2004 Aug 21.200) ------ occelmnt file for Occult BEGIN ------------------------------------ 2004 Aug 21 1903 Adzhimushkaj 4h 48.1m UT 9.7 19 16 52.506-18 14 36.21TYC 6300-01044-1 10.8 15.5 29 3.8 2.314 -0.891 -10.58 247.333 -18.240 108.75 12.00 4.8023 -.46560 .55901 -3.34534 -2.78483 0.00371 0.00019 2000 175.6345872004 813.00000347.022735135.461230 10.9898480.051214293.000828082.8471427910.55 0.15 RATE 1.8960180 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 ------ occelmnt file for Occult END ------------------------------------ ============================================ Calculator (s): Steve Preston Date of update: 2004 Jul 23, 04:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org