IOTA/IOTA-ES occultation update for (63442) 2001 NO6 / TYC 7283-01850-1 event on 2024 Dec 21, 05:40 UT Visible from Summary ------- On 2024 Dec 21 UT, the 10.4849775477545 km diameter asteroid (63442) 2001 NO6 will occult a 7.3 mag star in the constellation Centaurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 12.41 mag to 19.73 mag (the magnitude of the asteroid) for at most 0.350 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: 60 * date and approx. time of event: 2024 Dec 21, 05:37 - 2024 Dec 21, 05:43 * geocentric midpoint of event [JD]: 2460665.73635641 * magnitude of target star: 7.32 * magnitude drop [mag]: 12.41 * estimated maximum duration [s]: 0.350 * Moon: 66 % sunlit, 60° distance * Sun: 54° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 1.03 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.009, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.003", 89°) * approx speed of asteroid's shadow [km/s]: 33.2812 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7283-01850-1 by 63442 2001 NO6 on 2024 Dec 21 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 ' " Latitude Latitude Latitude Latitude - 57 0 0 - 2 34 37 5 37 32.7 0 123 -52 - 2 38 51 - 2 30 24 - 2 47 30 - 2 21 46 .... - 56 0 0 - 3 13 39 5 37 32.7 1 122 -51 - 3 17 54 - 3 9 24 - 3 26 37 - 3 0 43 0.44 - 55 0 0 - 3 53 33 5 37 32.9 3 122 -50 - 3 57 50 - 3 49 16 - 4 6 37 - 3 40 32 0.49 - 54 0 0 - 4 34 20 5 37 33.1 4 122 -49 - 4 38 39 - 4 30 2 - 4 47 29 - 4 21 13 0.51 - 53 0 0 - 5 15 59 5 37 33.5 5 122 -48 - 5 20 20 - 5 11 39 - 5 29 14 - 5 2 47 0.52 - 52 0 0 - 5 58 30 5 37 33.9 6 122 -47 - 6 2 53 - 5 54 8 - 6 11 51 - 5 45 12 0.53 - 51 0 0 - 6 41 52 5 37 34.5 7 122 -45 - 6 46 17 - 6 37 28 - 6 55 18 - 6 28 28 0.53 - 50 0 0 - 7 26 5 5 37 35.2 9 122 -44 - 7 30 31 - 7 21 38 - 7 39 37 - 7 12 35 0.54 - 49 0 0 - 8 11 7 5 37 35.9 10 122 -43 - 8 15 36 - 8 6 39 - 8 24 45 - 7 57 31 0.54 - 48 0 0 - 8 56 58 5 37 36.8 11 122 -42 - 9 1 29 - 8 52 28 - 9 10 42 - 8 43 16 0.54 - 47 0 0 - 9 43 37 5 37 37.8 12 121 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28 -61 28 45 -61 46 23 -61 19 52 0.56 128 0 0 -61 12 5 5 42 47.0 26 249 46 -61 16 29 -61 7 42 -61 25 28 -60 58 45 0.56 129 0 0 -60 50 24 5 42 48.0 25 248 45 -60 54 49 -60 45 59 -61 3 52 -60 36 58 0.56 130 0 0 -60 28 1 5 42 49.0 25 247 45 -60 32 28 -60 23 34 -60 41 35 -60 14 29 0.56 131 0 0 -60 4 56 5 42 50.0 24 246 45 -60 9 25 -60 0 27 -60 18 36 -59 51 18 0.56 132 0 0 -59 41 8 5 42 51.0 23 245 45 -59 45 39 -59 36 37 -59 54 54 -59 27 24 0.56 133 0 0 -59 16 36 5 42 51.9 23 244 45 -59 21 9 -59 12 3 -59 30 28 -59 2 46 0.56 134 0 0 -58 51 19 5 42 52.9 22 243 45 -58 55 54 -58 46 44 -59 5 17 -58 37 23 0.56 135 0 0 -58 25 15 5 42 53.9 21 243 44 -58 29 52 -58 20 39 -58 39 20 -58 11 14 0.57 136 0 0 -57 58 25 5 42 54.8 21 242 44 -58 3 4 -57 53 46 -58 12 36 -57 44 17 0.57 137 0 0 -57 30 47 5 42 55.8 20 241 44 -57 35 28 -57 26 7 -57 45 4 -57 16 34 0.57 138 0 0 -57 2 21 5 42 56.7 19 240 44 -57 7 4 -56 57 38 -57 16 43 -56 48 1 0.57 139 0 0 -56 33 5 5 42 57.6 19 239 43 -56 37 50 -56 28 20 -56 47 33 -56 18 39 0.57 140 0 0 -56 2 59 5 42 58.5 18 238 43 -56 7 46 -55 58 12 -56 17 33 -55 48 27 0.57 141 0 0 -55 32 2 5 42 59.4 17 237 43 -55 36 50 -55 27 13 -55 46 42 -55 17 24 0.57 142 0 0 -55 0 13 5 43 0.3 16 236 43 -55 5 3 -54 55 22 -55 14 59 -54 45 29 0.57 143 0 0 -54 27 31 5 43 1.1 16 235 42 -54 32 24 -54 22 39 -54 42 23 -54 12 42 0.58 144 0 0 -53 53 57 5 43 1.9 15 235 42 -53 58 52 -53 49 3 -54 8 54 -53 39 3 0.58 145 0 0 -53 19 29 5 43 2.7 14 234 41 -53 24 26 -53 14 33 -53 34 32 -53 4 29 0.58 146 0 0 -52 44 8 5 43 3.5 13 233 41 -52 49 6 -52 39 10 -52 59 16 -52 29 3 0.58 147 0 0 -52 7 52 5 43 4.2 12 232 41 -52 12 52 -52 2 53 -52 23 6 -51 52 42 0.59 148 0 0 -51 30 42 5 43 4.9 11 231 40 -51 35 43 -51 25 41 -51 46 0 -51 15 27 0.59 149 0 0 -50 52 37 5 43 5.5 10 231 40 -50 57 40 -50 47 34 -51 8 0 -50 37 17 0.59 150 0 0 -50 13 38 5 43 6.1 10 230 39 -50 18 42 -50 8 33 -50 29 6 -49 58 13 0.60 151 0 0 -49 33 43 5 43 6.7 9 229 39 -49 38 49 -49 28 38 -49 49 16 -49 18 14 0.61 152 0 0 -48 52 55 5 43 7.2 8 228 38 -48 58 2 -48 47 48 -49 8 32 -48 37 22 0.61 153 0 0 -48 11 13 5 43 7.7 7 227 37 -48 16 21 -48 6 5 -48 26 53 -47 55 36 0.62 154 0 0 -47 28 37 5 43 8.1 6 227 37 -47 33 47 -47 23 28 -47 44 21 -47 12 56 0.64 155 0 0 -46 45 9 5 43 8.5 5 226 36 -46 50 19 -46 39 58 -47 0 56 -46 29 24 0.66 156 0 0 -46 0 48 5 43 8.8 4 225 36 -46 6 0 -45 55 36 -46 16 39 -45 45 1 0.69 157 0 0 -45 15 36 5 43 9.0 3 225 35 -45 20 49 -45 10 24 -45 31 30 -44 59 46 0.74 158 0 0 -44 29 35 5 43 9.2 2 224 34 -44 34 48 -44 24 21 -44 45 31 -44 13 42 0.86 159 0 0 -43 42 44 5 43 9.2 1 223 33 -43 47 59 -43 37 30 -43 58 42 -43 26 50 1.41 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 7283-01850-1 * constellation : Centaurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 13 55 03.4322 DE: -32 21 27.401 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 13 55 03.4323 DE: -32 21 27.401 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.400,0.400) * V mag [mag]: 7.3 * B mag [mag]: 8.2 * Diameter [mas]: 0.40 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (63442) 2001 NO6 asteroid class: approx. diameter [km]: 10 approx. diameter ["]: 0.004 distance from Earth [AU]: 3.46430 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#36 date of fit: 2023 Apr 27 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): 0.009", 0.003", 88.852° remarks: * orbital elements for (63442)2001 NO6 : Mean anomaly = 185.0765082864 deg Arg. of pericenter = 118.4561281342 deg Long. of node = 257.0326454713 deg Inclination = 26.8205969224 deg Eccentricity = 0.1561326027 Semimajor axis = 2.5861057453 AU Perihelion dist = 2.1823303245 AU Mag: H = 13.81, G = 0.15 Epoch of elements : MJD 60665.23635654 TDT (2024 Dec 21.2364) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#362023Apr27,0.35,2024,12,21,5.672554,-0.205216,-0.430272,16.950052,-8.097322,-0.004782,0.000552,-0.000001,0.000001 33.7436,-32.4777,94.46,-23.44,False TYC 7283-01850-1,13.91762002,-32.3576112,8.16,7.32,6.87,0.4,0,,13.94147937,-32.4776699,12.41,12.42,0,0,0 63442,2001 NO6,19.73,11.490,3.4643,0,0,3.401,-20.56,,0.8,0 0,185.0205,2024,12,21,118.4561,257.0326,26.8206,0.15613,2.58611,2.18233,13.81,5.0,0.15 2.022,0.0090,0.0027,89,0.0047,Known errors,1.19,0,-1,-1 20241221_1850-1,60140.75 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:58 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org