IOTA/IOTA-ES occultation update for (980) Anacostia / TYC 0814-02042-1 event on 2022 Dec 31, 08:13 UT Visible from N Canada Summary ------- On 2022 Dec 31 UT, the 80 km diameter asteroid (980) Anacostia will occult a 11.6 mag star in the constellation Cancer for observers along a path across N Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.45 mag to 12.67 mag (the magnitude of the asteroid) for at most 6.740 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: 92 * date and approx. time of event: 2022 Dec 31, 08:08 - 2022 Dec 31, 08:19 * geocentric midpoint of event [JD]: 2459944.84299992 * magnitude of target star: 11.55 * magnitude drop [mag]: 1.45 * estimated maximum duration [s]: 6.740 * Moon: 64 % sunlit, 108° distance * Sun: 146° distance * rough path description: N Canada The occultation path -------------------- * approximate projected width [km]: 146 * 1 sigma uncertainty interval [path widths]: +/- 0.49 * 1 sigma uncertainty interval [seconds]: +/- 3.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.024) * 1 sigma uncertainty ellipse (major, minor, PA): (0.029", 0.022", 120°) * approx speed of asteroid's shadow [km/s]: 11.8768 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0814-02042-1 by 980 Anacostia on 2022 Dec 31 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 Alt E. Longitude Latitude U.T. Alt Az Alt Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 19 7 18 67 42 6 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 13 24 9 68 38 16 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. 17 6 57 68 43 35 ... .. .. .. .. .. 9 12 51 69 14 50 ... .. .. .. .. .. .... 23 4 52 68 24 6 8 9 4.0 2 293 -5 12 9 7 69 30 2 ... .. .. .. .. .. 5 40 4 69 42 52 ... .. .. .. .. .. .... 16 2 14 69 37 4 8 9 7.1 5 287 -7 8 12 18 70 3 7 ... .. .. .. .. .. 2 29 55 70 5 43 ... .. .. .. .. .. -1.13 11 24 58 70 18 51 8 9 10.1 7 282 -9 4 46 6 70 29 15 21 23 39 69 27 7 - 0 24 54 70 24 56 ... .. .. .. .. .. -1.36 7 35 25 70 49 58 8 9 13.2 8 279 -10 1 39 7 70 50 53 15 21 7 70 27 20 - 3 8 23 70 41 25 ... .. .. .. .. .. -1.42 4 12 2 71 14 58 8 9 16.2 9 276 -11 - 1 14 21 71 9 13 10 55 46 71 6 14 - 5 43 4 70 55 42 20 11 40 70 23 48 -1.45 1 5 46 71 35 50 8 9 19.2 10 273 -12 - 3 57 35 71 25 1 7 10 12 71 36 0 - 8 10 37 71 8 10 14 43 36 71 16 29 -1.47 - 1 48 9 71 53 38 8 9 22.3 11 270 -13 - 6 32 45 71 38 44 3 47 47 72 0 14 - 10 32 13 71 19 6 10 27 22 71 53 0 -1.48 - 4 32 35 72 8 59 8 9 25.3 12 267 -14 - 9 1 16 71 50 43 0 40 58 72 20 34 - 12 48 44 71 28 42 6 44 47 72 21 35 -1.49 - 7 9 26 72 22 21 8 9 28.4 13 265 -15 - 11 24 12 72 1 13 - 2 14 23 72 37 59 - 15 0 48 71 37 7 3 22 47 72 45 5 -1.50 - 9 40 0 72 34 1 8 9 31.4 13 262 -16 - 13 42 18 72 10 26 - 5 0 52 72 53 2 - 17 8 57 71 44 28 0 15 1 73 4 56 -1.50 - 12 5 13 72 44 14 8 9 34.5 14 260 -16 - 15 56 10 72 18 28 - 7 40 11 73 6 7 - 19 13 35 71 50 53 - 2 42 9 73 21 57 -1.51 - 14 25 49 72 53 9 8 9 37.5 15 258 -17 - 18 6 15 72 25 29 - 10 13 29 73 17 33 - 21 14 59 71 56 27 - 5 31 0 73 36 41 -1.51 - 16 42 17 73 0 56 8 9 40.6 15 255 -18 - 20 12 54 72 31 34 - 12 41 38 73 27 31 - 23 13 26 72 1 13 - 8 13 4 73 49 31 -1.51 - 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42 49 -139 25 21 58 36 5 -136 24 59 57 16 57 -140 30 11 59 1 52 -1.54 -138 56 59 57 58 33 8 15 54.9 30 121 -53 -137 56 2 57 32 6 -140 0 57 58 24 58 -136 59 31 57 6 24 -141 6 10 58 50 32 -1.54 -139 32 15 57 47 36 8 15 57.9 30 120 -53 -138 30 56 57 21 20 -140 36 35 58 13 48 -137 34 4 56 55 49 -141 42 11 58 39 11 -1.54 -140 7 32 57 36 36 8 16 1.0 29 120 -53 -139 5 51 57 10 32 -141 12 15 58 2 36 -138 8 39 56 45 12 -142 18 14 58 27 46 -1.54 -140 42 52 57 25 34 8 16 4.0 29 119 -53 -139 40 48 56 59 42 -141 47 59 57 51 22 -138 43 15 56 34 33 -142 54 21 58 16 20 -1.54 -141 18 15 57 14 30 8 16 7.1 29 118 -53 -140 15 48 56 48 50 -142 23 45 57 40 6 -139 17 54 56 23 51 -143 30 31 58 4 51 -1.54 -141 53 41 57 3 24 8 16 10.1 29 118 -53 -140 50 51 56 37 55 -142 59 36 57 28 47 -139 52 35 56 13 7 -144 6 46 57 53 19 -1.54 -142 29 12 56 52 15 8 16 13.2 29 117 -53 -141 25 58 56 26 58 -143 35 31 57 17 25 -140 27 19 56 2 21 -144 43 7 57 41 44 -1.54 -143 4 47 56 41 3 8 16 16.2 28 116 -53 -142 1 9 56 15 58 -144 11 31 57 6 1 -141 2 8 55 51 33 -145 19 33 57 30 7 -1.54 -143 40 27 56 29 49 8 16 19.2 28 116 -53 -142 36 24 56 4 56 -144 47 37 56 54 34 -141 37 0 55 40 41 -145 56 5 57 18 27 -1.54 -144 16 13 56 18 32 8 16 22.3 28 115 -53 -143 11 45 55 53 51 -145 23 50 56 43 4 -142 11 57 55 29 48 -146 32 45 57 6 44 -1.54 -144 52 5 56 7 12 8 16 25.3 28 114 -53 -143 47 11 55 42 43 -146 0 9 56 31 31 -142 46 59 55 18 51 -147 9 33 56 54 57 -1.54 -145 28 4 55 55 49 8 16 28.4 28 114 -53 -144 22 43 55 31 33 -146 36 37 56 19 55 -143 22 7 55 7 52 -147 46 29 56 43 8 -1.54 -146 4 11 55 44 23 8 16 31.4 27 113 -53 -144 58 23 55 20 19 -147 13 13 56 8 16 -143 57 21 54 56 50 -148 23 35 56 31 15 -1.54 -146 40 26 55 32 53 8 16 34.5 27 112 -53 -145 34 10 55 9 3 -147 49 58 55 56 33 -144 32 43 54 45 45 -149 0 51 56 19 19 -1.54 -147 16 51 55 21 21 8 16 37.5 27 112 -53 -146 10 6 54 57 43 -148 26 53 55 44 47 -145 8 11 54 34 37 -149 38 18 56 7 19 -1.54 -147 53 25 55 9 45 8 16 40.6 27 111 -53 -146 46 10 54 46 20 -149 3 59 55 32 57 -145 43 49 54 23 26 -150 15 58 55 55 15 -1.54 -148 30 10 54 58 6 8 16 43.6 26 111 -53 -147 22 24 54 34 54 -149 41 18 55 21 4 -146 19 34 54 12 12 -150 53 50 55 43 7 -1.54 -149 7 7 54 46 23 8 16 46.6 26 110 -53 -147 58 49 54 23 24 -150 18 48 55 9 7 -146 55 30 54 0 54 -151 31 57 55 30 55 -1.54 -149 44 16 54 34 36 8 16 49.7 26 109 -53 -148 35 25 54 11 51 -150 56 33 54 57 5 -147 31 36 53 49 33 -152 10 19 55 18 39 -1.54 -150 21 38 54 22 45 8 16 52.7 26 109 -53 -149 12 13 54 0 13 -151 34 32 54 45 0 -148 7 53 53 38 9 -152 48 57 55 6 18 -1.54 -150 59 14 54 10 50 8 16 55.8 25 108 -53 -149 49 13 53 48 32 -152 12 47 54 32 50 -148 44 22 53 26 40 -153 27 53 54 53 52 -1.54 -151 37 6 53 58 50 8 16 58.8 25 107 -53 -150 26 28 53 36 47 -152 51 19 54 20 35 -149 21 3 53 15 8 -154 7 7 54 41 22 -1.54 -152 15 14 53 46 46 8 17 1.9 25 107 -52 -151 3 58 53 24 58 -153 30 9 54 8 16 -149 57 58 53 3 32 -154 46 42 54 28 46 -1.54 -152 53 40 53 34 37 8 17 4.9 24 106 -52 -151 41 44 53 13 4 -154 9 19 53 55 51 -150 35 8 52 51 51 -155 26 39 54 16 5 -1.54 -153 32 25 53 22 24 8 17 7.9 24 105 -52 -152 19 46 53 1 5 -154 48 49 53 43 21 -151 12 33 52 40 6 -156 6 58 54 3 18 -1.54 -154 11 29 53 10 5 8 17 11.0 24 105 -52 -152 58 7 52 49 2 -155 28 42 53 30 45 -151 50 15 52 28 17 -156 47 43 53 50 24 -1.54 -154 50 56 52 57 40 8 17 14.0 23 104 -52 -153 36 48 52 36 53 -156 9 0 53 18 4 -152 28 15 52 16 23 -157 28 55 53 37 24 -1.54 -155 30 45 52 45 10 8 17 17.1 23 103 -52 -154 15 49 52 24 39 -156 49 43 53 5 16 -153 6 33 52 4 24 -158 10 36 53 24 18 -1.54 -156 11 0 52 32 34 8 17 20.1 23 103 -51 -154 55 13 52 12 20 -157 30 53 52 52 21 -153 45 12 51 52 19 -158 52 49 53 11 4 -1.54 -156 51 41 52 19 51 8 17 23.2 22 102 -51 -155 35 0 51 59 54 -158 12 34 52 39 19 -154 24 13 51 40 9 -159 35 35 52 57 42 -1.54 -157 32 50 52 7 1 8 17 26.2 22 102 -51 -156 15 13 51 47 23 -158 54 47 52 26 10 -155 3 36 51 27 54 -160 18 57 52 44 12 -1.54 -158 14 30 51 54 5 8 17 29.2 22 101 -51 -156 55 53 51 34 44 -159 37 34 52 12 53 -155 43 25 51 15 32 -161 2 59 52 30 33 -1.54 -158 56 43 51 41 0 8 17 32.3 21 100 -51 -157 37 3 51 21 59 -160 20 59 51 59 28 -156 23 40 51 3 4 -161 47 43 52 16 45 -1.54 -159 39 32 51 27 48 8 17 35.3 21 100 -50 -158 18 45 51 9 7 -161 5 4 51 45 53 -157 4 23 50 50 29 -162 33 13 52 2 47 -1.55 -160 22 59 51 14 27 8 17 38.4 21 99 -50 -159 1 0 50 56 6 -161 49 53 51 32 9 -157 45 37 50 37 47 -163 19 34 51 48 37 -1.55 -161 7 7 51 0 57 8 17 41.4 20 98 -50 -159 43 52 50 42 58 -162 35 29 51 18 15 -158 27 23 50 24 57 -164 6 50 51 34 16 -1.55 -161 52 1 50 47 16 8 17 44.5 20 98 -50 -160 27 23 50 29 40 -163 21 57 51 4 9 -159 9 45 50 11 59 -164 55 7 51 19 42 -1.55 -162 37 43 50 33 25 8 17 47.5 19 97 -49 -161 11 37 50 16 13 -164 9 22 50 49 51 -159 52 44 49 58 53 -165 44 29 51 4 54 -1.55 -163 24 18 50 19 23 8 17 50.6 19 96 -49 -161 56 38 50 2 36 -164 57 49 50 35 20 -160 36 24 49 45 38 -166 35 6 50 49 50 -1.55 -164 11 52 50 5 8 8 17 53.6 18 96 -49 -162 42 29 49 48 48 -165 47 25 50 20 34 -161 20 49 49 32 13 -167 27 4 50 34 30 -1.55 -165 0 29 49 50 40 8 17 56.6 18 95 -48 -163 29 14 49 34 48 -166 38 16 50 5 33 -162 6 2 49 18 37 -168 20 33 50 18 50 -1.55 -165 50 17 49 35 57 8 17 59.7 17 94 -48 -164 17 0 49 20 35 -167 30 31 49 50 14 -162 52 6 49 4 50 -169 15 44 50 2 50 -1.55 -166 41 23 49 20 57 8 18 2.7 17 93 -47 -165 5 51 49 6 9 -168 24 21 49 34 36 -163 39 8 48 50 51 -170 12 52 49 46 26 -1.56 -167 33 56 49 5 40 8 18 5.8 16 93 -47 -165 55 56 48 51 27 -169 19 57 49 18 36 -164 27 13 48 36 39 -171 12 14 49 29 35 -1.56 -168 28 6 48 50 2 8 18 8.8 16 92 -46 -166 47 21 48 36 28 -170 17 33 49 2 11 -165 16 26 48 22 12 -172 14 10 49 12 13 -1.56 -169 24 6 48 34 3 8 18 11.9 15 91 -46 -167 40 16 48 21 11 -171 17 29 48 45 19 -166 6 54 48 7 30 -173 19 8 48 54 15 -1.56 -170 22 12 48 17 37 8 18 14.9 14 90 -45 -168 34 52 48 5 33 -172 20 6 48 27 54 -166 58 48 47 52 29 -174 27 43 48 35 34 -1.57 -171 22 42 48 0 43 8 18 17.9 14 90 -45 -169 31 23 47 49 32 -173 25 53 48 9 51 -167 52 15 47 37 10 -175 40 43 48 16 1 -1.57 -172 26 0 47 43 15 8 18 21.0 13 89 -44 -170 30 5 47 33 4 -174 35 30 47 51 4 -168 47 29 47 21 29 -176 59 18 47 55 22 -1.57 -173 32 39 47 25 8 8 18 24.0 12 88 -44 -171 31 18 47 16 6 -175 49 49 47 31 20 -169 44 44 47 5 23 -178 25 11 47 33 18 -1.58 -174 43 19 47 6 13 8 18 27.1 12 87 -43 -172 35 29 46 58 33 -177 10 5 47 10 27 -170 44 17 46 48 49 179 58 51 47 9 17 -1.59 -175 58 58 46 46 19 8 18 30.1 11 86 -42 -173 43 11 46 40 17 -178 38 17 46 48 1 -171 46 32 46 31 43 178 7 33 46 42 19 -1.60 -177 21 2 46 25 10 8 18 33.2 10 85 -41 -174 55 10 46 21 11 179 42 19 46 23 26 -172 51 56 46 14 0 175 48 49 46 10 6 -1.61 -178 51 44 46 2 21 8 18 36.2 9 84 -40 -176 12 33 46 1 2 177 45 21 45 55 28 -174 1 8 45 55 31 172 11 18 45 22 54 -1.64 179 25 7 45 37 7 8 18 39.2 7 83 -39 -177 36 54 45 39 32 175 14 24 45 21 2 -175 15 1 45 36 7 ... .. .. .. .. .. -1.67 177 21 34 45 8 0 8 18 42.3 6 81 -38 -179 10 49 45 16 10 169 53 41 44 14 24 -176 34 51 45 15 34 ... .. .. .. .. .. -1.74 174 34 32 44 30 35 8 18 45.3 4 79 -36 179 0 58 44 50 4 ... .. .. .. .. .. -178 2 31 44 53 30 ... .. .. .. .. .. -1.97 .. .. .. .. .. .. .. .. .... .. .. .. 176 48 0 44 19 14 ... .. .. .. .. .. -179 41 18 44 29 17 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. 173 32 11 43 36 27 ... .. .. .. .. .. 178 22 35 44 1 44 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 175 53 7 43 27 50 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 170 52 33 42 25 21 ... .. .. .. .. .. .... Uncertainty in time = +/- 4 secs Prediction of 2022 Dec 1.1 Data for the target star ------------------------ * name: TYC 0814-02042-1 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 54 25.3058 DE: +10 34 45.513 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 54 25.3061 DE: +10 34 45.511 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (980) Anacostia asteroid class: Barbarian approx. diameter [km]: 80 approx. diameter ["]: 0.052 distance from Earth [AU]: 2.13460 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 date of fit: 2022 Nov 22 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): 0.029", 0.022", 119.638° remarks: * orbital elements for (980)Anacostia : Mean anomaly = 107.5353243420 deg Arg. of pericenter = 69.6769076049 deg Long. of node = 285.7919727172 deg Inclination = 15.8983664486 deg Eccentricity = 0.2024316508 Semimajor axis = 2.7400276921 AU Perihelion dist = 2.1853593631 AU Mag: H = 7.96, G = 0.06 Epoch of elements : MJD 59944.34291667 TDT (2022 Dec 31.3429) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542022Nov22,6.74,2022,12,31,8.231998,-0.184615,0.815780,-6.539437,-1.474408,-0.003017,0.001471,0.000001,0.000000 -89.3016,10.4919,57.25,-23.09,False TYC 0814-02042-1,8.90702939,10.5793093,0.00,11.55,0.00,0.0,0,,8.92796606,10.4918944,1.45,0.00,0,0,0 980,Anacostia,12.67,80.0,2.1346,0,0,-1.827,-6.07,,4.0,0 0,107.4608,2022,12,31,69.6769,285.7920,15.8984,0.20243,2.74003,2.18536,7.97,5.0,0.15 1.485,0.0287,0.0217,120,0.0251,Known errors,-1.00,-1,-1,-1 20221231_2042-1,59914.09 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 01, 02:07 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org