IOTA/IOTA-ES occultation update for (914) Palisana / TYC 1628-02807-1 event on 2023 Sep 02, 11:26 UT Visible from W USA, E Australia Summary ------- On 2023 Sep 02 UT, the 82 km diameter asteroid (914) Palisana will occult a 9.9 mag star in the constellation Vulpecula for observers along a path across W USA, E Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.32 mag to 12.03 mag (the magnitude of the asteroid) for at most 19.360 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 100 * date and approx. time of event: 2023 Sep 02, 11:03 - 2023 Sep 02, 11:49 * geocentric midpoint of event [JD]: 2460189.97689175 * magnitude of target star: 9.85 * magnitude drop [mag]: 2.32 * estimated maximum duration [s]: 19.360 * Moon: 92 % sunlit, 73° distance * Sun: 128° distance * rough path description: W USA, E Australia The occultation path -------------------- * approximate projected width [km]: 93 * 1 sigma uncertainty interval [path widths]: +/- 0.08 * 1 sigma uncertainty interval [seconds]: +/- 2.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.001", 56°) * approx speed of asteroid's shadow [km/s]: 4.2363 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1628-02807-1 by 914 Palisana on 2023 Sep 2 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Longitude Longitude Longitude Longitude 152 55 10 -67 0 0 11 48 49.3 0 348 -28 151 48 53 ... .. .. 151 38 3 ... .. .. .... 152 24 40 -66 0 0 11 48 49.1 1 348 -28 151 21 9 153 28 40 151 10 47 153 39 12 -0.27 151 58 3 -65 0 0 11 48 48.3 2 349 -29 150 57 3 152 59 28 150 47 4 153 9 36 -0.42 151 34 50 -64 0 0 11 48 47.0 3 349 -30 150 36 7 152 33 56 150 26 31 152 43 40 -0.47 151 14 40 -63 0 0 11 48 45.2 4 350 -30 150 18 3 152 11 39 150 8 48 152 21 2 -0.50 150 57 14 -62 0 0 11 48 42.9 5 350 -31 150 2 32 151 52 15 149 53 35 152 1 19 -0.52 150 42 15 -61 0 0 11 48 40.0 6 350 -32 149 49 20 151 35 29 149 40 40 151 44 15 -0.53 150 29 30 -60 0 0 11 48 36.6 7 350 -33 149 38 12 151 21 4 149 29 49 151 29 34 -0.54 150 18 46 -59 0 0 11 48 32.7 8 350 -33 149 28 59 151 8 48 149 20 50 151 17 3 -0.55 150 9 53 -58 0 0 11 48 28.3 9 351 -34 149 21 30 150 58 30 149 13 36 151 6 30 -0.55 150 2 42 -57 0 0 11 48 23.4 10 351 -35 149 15 38 150 50 0 149 7 56 150 57 47 -0.56 149 57 4 -56 0 0 11 48 17.9 11 351 -35 149 11 14 150 43 9 149 3 43 150 50 43 -0.56 149 52 54 -55 0 0 11 48 12.0 12 351 -36 149 8 11 150 37 49 149 0 52 150 45 13 -0.57 149 50 4 -54 0 0 11 48 5.6 13 351 -37 149 6 26 150 33 55 148 59 17 150 41 8 -0.57 149 48 30 -53 0 0 11 47 58.6 14 351 -38 149 5 51 150 31 20 148 58 52 150 38 23 -0.57 149 48 6 -52 0 0 11 47 51.2 15 351 -38 149 6 23 150 30 0 148 59 33 150 36 53 -0.58 149 48 48 -51 0 0 11 47 43.3 16 351 -39 149 7 57 150 29 49 149 1 16 150 36 33 0.58 149 50 32 -50 0 0 11 47 34.9 17 351 -40 149 10 31 150 30 43 149 3 58 150 37 19 0.58 149 53 15 -49 0 0 11 47 26.0 18 351 -40 149 14 0 150 32 39 149 7 35 150 39 8 0.58 149 56 53 -48 0 0 11 47 16.6 19 351 -41 149 18 23 150 35 33 149 12 5 150 41 55 0.59 150 1 25 -47 0 0 11 47 6.7 20 351 -42 149 23 36 150 39 23 149 17 24 150 45 38 0.59 150 6 47 -46 0 0 11 46 56.4 21 350 -43 149 29 37 150 44 6 149 23 32 150 50 14 0.59 150 12 57 -45 0 0 11 46 45.6 22 350 -43 149 36 24 150 49 39 149 30 24 150 55 41 0.59 150 19 53 -44 0 0 11 46 34.3 23 350 -44 149 43 55 150 56 0 149 38 1 151 1 56 0.59 150 27 34 -43 0 0 11 46 22.5 24 350 -45 149 52 8 151 3 7 149 46 20 151 8 58 0.59 150 35 57 -42 0 0 11 46 10.3 25 350 -45 150 1 3 151 10 59 149 55 19 151 16 45 0.59 150 45 2 -41 0 0 11 45 57.6 26 350 -46 150 10 36 151 19 34 150 4 58 151 25 15 0.59 150 54 46 -40 0 0 11 45 44.4 27 349 -47 150 20 49 151 28 51 150 15 15 151 34 27 0.59 151 5 9 -39 0 0 11 45 30.8 28 349 -47 150 31 38 151 38 48 150 26 9 151 44 20 0.60 151 16 10 -38 0 0 11 45 16.8 29 349 -48 150 43 4 151 49 24 150 37 38 151 54 51 0.60 151 27 47 -37 0 0 11 45 2.3 30 349 -49 150 55 5 152 0 38 150 49 43 152 6 1 0.60 151 40 1 -36 0 0 11 44 47.3 31 348 -49 151 7 40 152 12 29 151 2 22 152 17 49 0.60 151 52 49 -35 0 0 11 44 31.9 32 348 -50 151 20 49 152 24 56 151 15 35 152 30 13 0.60 152 6 12 -34 0 0 11 44 16.1 33 348 -51 151 34 32 152 37 59 151 29 20 152 43 12 0.60 152 20 8 -33 0 0 11 43 59.8 34 348 -52 151 48 46 152 51 36 151 43 38 152 56 47 0.60 152 34 38 -32 0 0 11 43 43.1 35 347 -52 152 3 34 153 5 48 151 58 28 153 10 56 0.60 152 49 40 -31 0 0 11 43 26.0 35 347 -53 152 18 53 153 20 34 152 13 50 153 25 39 0.60 153 5 15 -30 0 0 11 43 8.5 36 347 -53 152 34 43 153 35 53 152 29 43 153 40 56 0.60 153 21 21 -29 0 0 11 42 50.6 37 346 -54 152 51 4 153 51 45 152 46 6 153 56 45 0.59 153 38 0 -28 0 0 11 42 32.2 38 346 -55 153 7 56 154 8 10 153 3 1 154 13 8 0.59 153 55 10 -27 0 0 11 42 13.4 39 345 -55 153 25 19 154 25 8 153 20 26 154 30 3 0.59 154 12 52 -26 0 0 11 41 54.3 40 345 -56 153 43 12 154 42 37 153 38 21 154 47 31 0.59 154 31 4 -25 0 0 11 41 34.7 41 344 -57 154 1 36 155 0 39 153 56 47 155 5 31 0.59 154 49 48 -24 0 0 11 41 14.8 42 344 -57 154 20 30 155 19 12 154 15 43 155 24 3 0.59 155 9 3 -23 0 0 11 40 54.4 43 343 -58 154 39 55 155 38 18 154 35 9 155 43 7 0.59 155 28 50 -22 0 0 11 40 33.7 44 343 -58 154 59 50 155 57 56 154 55 5 156 2 43 0.59 155 49 7 -21 0 0 11 40 12.6 45 342 -59 155 20 16 156 18 6 155 15 32 156 22 51 0.59 156 9 56 -20 0 0 11 39 51.2 45 341 -60 155 41 12 156 38 48 155 36 29 156 43 32 0.59 156 31 17 -19 0 0 11 39 29.3 46 341 -60 156 2 39 157 0 2 155 57 58 157 4 45 0.58 156 53 10 -18 0 0 11 39 7.2 47 340 -61 156 24 37 157 21 49 156 19 57 157 26 31 0.58 157 15 35 -17 0 0 11 38 44.6 48 339 -61 156 47 7 157 44 9 156 42 27 157 48 50 0.58 157 38 32 -16 0 0 11 38 21.7 49 339 -62 157 10 9 158 7 1 157 5 30 158 11 43 0.58 158 2 2 -15 0 0 11 37 58.5 50 338 -62 157 33 42 158 30 28 157 29 4 158 35 8 0.58 158 26 5 -14 0 0 11 37 34.9 50 337 -63 157 57 48 158 54 28 157 53 10 158 59 8 0.58 158 50 42 -13 0 0 11 37 11.0 51 336 -63 158 22 27 159 19 3 158 17 50 159 23 43 0.57 159 15 53 -12 0 0 11 36 46.8 52 335 -64 158 47 40 159 44 13 158 43 3 159 48 52 0.57 159 41 39 -11 0 0 11 36 22.2 53 334 -64 159 13 27 160 9 58 159 8 50 160 14 38 0.57 160 8 1 -10 0 0 11 35 57.3 54 333 -64 159 39 49 160 36 20 159 35 12 160 40 59 0.57 160 34 58 - 9 0 0 11 35 32.2 54 332 -65 160 6 46 161 3 18 160 2 9 161 7 57 0.57 161 2 33 - 8 0 0 11 35 6.7 55 331 -65 160 34 19 161 30 54 160 29 42 161 35 34 0.56 161 30 45 - 7 0 0 11 34 40.9 56 330 -65 161 2 29 161 59 8 160 57 52 162 3 48 0.56 161 59 36 - 6 0 0 11 34 14.8 56 328 -66 161 31 17 162 28 2 161 26 39 162 32 42 0.56 162 29 6 - 5 0 0 11 33 48.4 57 327 -66 162 0 44 162 57 36 161 56 6 163 2 17 0.56 162 59 17 - 4 0 0 11 33 21.7 58 326 -66 162 30 51 163 27 51 162 26 12 163 32 33 0.56 163 30 10 - 3 0 0 11 32 54.8 58 324 -66 163 1 39 163 58 49 162 56 59 164 3 32 0.55 164 1 46 - 2 0 0 11 32 27.6 59 323 -67 163 33 9 164 30 31 163 28 28 164 35 15 0.55 164 34 6 - 1 0 0 11 32 0.1 59 321 -67 164 5 22 165 2 58 164 0 40 165 7 42 0.55 165 7 11 - 0 0 0 11 31 32.3 60 319 -67 164 38 21 165 36 11 164 33 37 165 40 57 0.55 165 41 4 1 0 0 11 31 4.3 60 318 -67 165 12 5 166 10 12 165 7 20 166 15 0 0.55 166 15 46 2 0 0 11 30 36.1 61 316 -67 165 46 37 166 45 3 165 41 51 166 49 52 0.54 166 51 18 3 0 0 11 30 7.5 61 314 -67 166 21 59 167 20 46 166 17 12 167 25 37 0.54 167 27 43 4 0 0 11 29 38.8 61 312 -67 166 58 13 167 57 22 166 53 23 168 2 15 0.54 168 5 2 5 0 0 11 29 9.8 62 310 -67 167 35 20 168 34 53 167 30 28 168 39 48 0.54 168 43 18 6 0 0 11 28 40.5 62 308 -66 168 13 22 169 13 23 168 8 29 169 18 20 0.53 169 22 32 7 0 0 11 28 11.1 62 306 -66 168 52 23 169 52 52 168 47 27 169 57 52 0.53 170 2 49 8 0 0 11 27 41.4 62 304 -66 169 32 24 170 33 25 169 27 25 170 38 27 0.53 170 44 10 9 0 0 11 27 11.4 62 302 -66 170 13 28 171 15 3 170 8 27 171 20 9 0.53 171 26 39 10 0 0 11 26 41.3 62 300 -66 170 55 39 171 57 51 170 50 34 172 2 59 0.53 172 10 18 11 0 0 11 26 10.9 62 298 -65 171 38 59 172 41 51 171 33 51 172 47 2 0.52 172 55 12 12 0 0 11 25 40.3 62 296 -65 172 23 31 173 27 6 172 18 20 173 32 22 0.52 173 41 25 13 0 0 11 25 9.5 62 294 -64 173 9 21 174 13 42 173 4 6 174 19 1 0.52 174 29 0 14 0 0 11 24 38.5 62 292 -64 173 56 31 175 1 43 173 51 13 175 7 6 0.52 175 18 2 15 0 0 11 24 7.3 61 290 -63 174 45 7 175 51 12 174 39 44 175 56 40 0.52 176 8 37 16 0 0 11 23 35.8 61 288 -63 175 35 13 176 42 17 175 29 46 176 47 50 0.52 177 0 51 17 0 0 11 23 4.1 61 286 -62 176 26 55 177 35 2 176 21 23 177 40 40 0.51 177 54 49 18 0 0 11 22 32.2 60 284 -62 177 20 20 178 29 35 177 14 42 178 35 19 0.51 178 50 38 19 0 0 11 22 0.1 60 283 -61 178 15 33 179 26 2 178 9 49 179 31 52 0.51 179 48 27 20 0 0 11 21 27.7 59 281 -61 179 12 42 -179 35 28 179 6 52 -179 29 31 0.51 -179 11 36 21 0 0 11 20 55.1 59 279 -60 -179 48 4 -178 34 47 -179 54 1 -178 28 42 0.51 -178 9 21 22 0 0 11 20 22.3 58 278 -59 -178 46 36 -177 31 43 -178 52 40 -177 25 31 0.51 -177 4 37 23 0 0 11 19 49.2 57 277 -58 -177 42 43 -176 26 6 -177 48 56 -176 19 45 0.51 -175 57 11 24 0 0 11 19 15.8 56 275 -58 -176 36 13 -175 17 42 -176 42 35 -175 11 11 0.50 -174 46 49 25 0 0 11 18 42.1 55 274 -57 -175 26 53 -174 6 16 -175 33 25 -173 59 34 0.50 -173 33 14 26 0 0 11 18 8.1 55 273 -56 -174 14 27 -172 51 30 -174 21 10 -172 44 36 0.50 -172 16 7 27 0 0 11 17 33.8 54 272 -55 -172 58 36 -171 33 3 -173 5 31 -171 25 56 0.50 -170 55 6 28 0 0 11 16 59.1 53 271 -54 -171 39 0 -170 10 32 -171 46 8 -170 3 10 0.50 -169 29 42 29 0 0 11 16 24.0 51 271 -53 -170 15 12 -168 43 27 -170 22 36 -168 35 48 0.50 -167 59 23 30 0 0 11 15 48.4 50 270 -52 -168 46 42 -167 11 14 -168 54 24 -167 3 15 0.50 -166 23 31 31 0 0 11 15 12.2 49 270 -51 -167 12 55 -165 33 9 -167 20 57 -165 24 47 0.50 -164 41 15 32 0 0 11 14 35.5 48 269 -50 -165 33 5 -163 48 18 -165 41 29 -163 39 29 0.50 -162 51 33 33 0 0 11 13 58.0 46 269 -49 -163 46 15 -161 55 31 -163 55 6 -161 46 11 0.50 -160 53 3 34 0 0 11 13 19.6 45 269 -48 -161 51 11 -159 53 18 -162 0 34 -159 43 20 0.50 -158 43 55 35 0 0 11 12 40.1 43 269 -46 -159 46 16 -157 39 31 -159 56 19 -157 28 45 0.51 -156 21 32 36 0 0 11 11 59.2 41 270 -45 -157 29 15 -155 11 9 -157 40 8 -154 59 20 0.51 -153 42 2 37 0 0 11 11 16.3 39 270 -43 -154 56 51 -152 23 31 -155 8 49 -152 10 14 0.51 -150 39 3 38 0 0 11 10 30.8 37 271 -42 -152 3 56 -149 8 36 -152 17 24 -148 53 8 0.51 -147 0 49 39 0 0 11 9 41.2 34 273 -39 -148 41 33 -145 10 17 -148 57 18 -144 50 59 0.52 -142 19 37 40 0 0 11 8 43.8 31 275 -37 -144 30 56 -139 43 22 -144 50 50 -139 14 7 0.53 -134 27 2 41 0 0 11 7 22.0 25 279 -33 -138 34 13 ... .. .. -139 5 36 ... .. .. 0.57 Uncertainty in time = +/- 3 secs Prediction of 2023 Aug 27.0 Data for the target star ------------------------ * name: TYC 1628-02807-1 * constellation : Vulpecula * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 53 08.8639 DE: +22 29 38.647 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 53 08.8636 DE: +22 29 38.650 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.200) * V mag [mag]: 9.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (914) Palisana asteroid class: approx. diameter [km]: 82 approx. diameter ["]: 0.097 distance from Earth [AU]: 1.16240 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#69 date of fit: 2023 Aug 25 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.014", 0.001", 56.391° remarks: * orbital elements for (914)Palisana : Mean anomaly = 13.5462803590 deg Arg. of pericenter = 49.1393344060 deg Long. of node = 255.7686896978 deg Inclination = 25.2064401314 deg Eccentricity = 0.2142278721 Semimajor axis = 2.4577256350 AU Perihelion dist = 1.9312123020 AU Mag: H = 9.14, G = 0.15 Epoch of elements : MJD 60189.47694444 TDT (2023 Sep 02.4769) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#692023Aug25,19.36,2023,9,2,11.445402,0.430110,-0.181797,-0.930608,-2.202583,0.003396,-0.002071,0.000001,0.000001 145.5058,22.5575,8.27,7.91,False TYC 1628-02807-1,19.88579553,22.4940686,0.00,9.85,0.00,0.0,0,,19.90296301,22.5575306,2.32,0.00,0,0,0 914,Palisana,12.03,82.000,1.1624,0,0,-0.507,-16.67,,4.2,0 0,13.4243,2023,9,2,49.1393,255.7687,25.2064,0.21423,2.45773,1.93121,9.13,5.0,0.15 1.082,0.0143,0.0013,56,0.0144,Known errors,-1.00,0,-1,-1 20230902_2807-1,60182.99 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Aug 26, 23:39 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org