IOTA/IOTA-ES occultation update for (931) Whittemora / UCAC4-553-021438 event on 2021 Jan 21, 01:30 UT Visible from E USA, Canada Summary ------- On 2021 Jan 21 UT, the 45.9 km diameter asteroid (931) Whittemora will occult a 12.2 mag star in the constellation Orion for observers along a path across E USA, Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.26 mag to 13.07 mag (the magnitude of the asteroid) for at most 6.1 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill Owen, 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: 70 * date and approx. time of event: 2021 Jan 21, 01:16 - 2021 Jan 21, 01:45 * geocentric midpoint of event [JD]: 2459235.56297083 * magnitude of target star: 12.22 * magnitude drop [mag]: 1.26 * estimated maximum duration [s]: 6.1 * Moon: 51 % sunlit, 58° distance * Sun: 149° distance * rough path description: E USA, Canada The occultation path -------------------- * approximate projected width [km]: 46 * 1 sigma uncertainty interval [path widths]: +/- 0.84 * 1 sigma uncertainty interval [seconds]: +/- 4.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.040, +/- 0.016) * 1 sigma uncertainty ellipse (major, minor, PA): (0.041", 0.014", 79°) * approx speed of asteroid's shadow [km/s]: 7.4743 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-553-021438 by 931 Whittemora on 2021 Jan 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 ' " Longitude Longitude Longitude Longitude .. .. .. -30 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 27 38 11 .... 26 39 5 -29 0 0 1 16 35.0 2 294 -26 27 13 21 26 5 15 28 11 44 25 9 29 .... 24 15 32 -28 0 0 1 16 36.6 4 296 -28 24 47 47 23 43 37 25 42 36 22 50 55 -0.10 Latitude Latitude Latitude Latitude 23 0 0 -27 26 43 1 16 38.1 5 296 -29 -27 12 45 -27 40 41 -26 49 21 -28 4 3 -0.11 22 0 0 -26 59 26 1 16 39.5 6 297 -30 -26 45 24 -27 13 28 -26 21 53 -27 36 57 -0.11 21 0 0 -26 31 24 1 16 41.2 7 297 -31 -26 17 17 -26 45 30 -25 53 39 -27 9 6 -0.11 20 0 0 -26 2 36 1 16 43.2 8 298 -32 -25 48 25 -26 16 46 -25 24 40 -26 40 29 -0.11 19 0 0 -25 33 2 1 16 45.5 9 298 -33 -25 18 47 -25 47 17 -24 54 55 -26 11 6 -0.10 18 0 0 -25 2 43 1 16 48.0 10 298 -34 -24 48 23 -25 17 1 -24 24 24 -25 40 58 -0.10 17 0 0 -24 31 37 1 16 50.9 11 299 -35 -24 17 14 -24 46 0 -23 53 7 -25 10 4 -0.10 16 0 0 -23 59 46 1 16 54.1 12 299 -36 -23 45 18 -24 14 13 -23 21 4 -24 38 25 -0.10 15 0 0 -23 27 8 1 16 57.5 13 300 -37 -23 12 36 -23 41 40 -22 48 15 -24 5 59 -0.10 14 0 0 -22 53 45 1 17 1.3 14 300 -38 -22 39 8 -23 8 21 -22 14 39 -23 32 47 -0.10 13 0 0 -22 19 35 1 17 5.4 15 300 -39 -22 4 54 -22 34 16 -21 40 18 -22 58 49 -0.10 12 0 0 -21 44 39 1 17 9.9 17 301 -40 -21 29 54 -21 59 24 -21 5 10 -22 24 5 -0.10 11 0 0 -21 8 58 1 17 14.6 18 301 -41 -20 54 8 -21 23 48 -20 29 17 -21 48 36 -0.10 10 0 0 -20 32 31 1 17 19.8 19 301 -42 -20 17 37 -20 47 25 -19 52 38 -21 12 21 -0.10 9 0 0 -19 55 19 1 17 25.2 20 302 -43 -19 40 20 -20 10 17 -19 15 14 -20 35 20 -0.10 8 0 0 -19 17 21 1 17 31.0 21 302 -44 -19 2 18 -19 32 24 -18 37 5 -19 57 35 -0.10 7 0 0 -18 38 39 1 17 37.1 22 302 -45 -18 23 32 -18 53 47 -17 58 11 -19 19 4 -0.09 6 0 0 -17 59 13 1 17 43.7 23 303 -46 -17 44 1 -18 14 25 -17 18 33 -18 39 50 -0.09 5 0 0 -17 19 3 1 17 50.5 24 303 -47 -17 3 46 -17 34 19 -16 38 11 -17 59 51 -0.09 4 0 0 -16 38 9 1 17 57.8 25 303 -48 -16 22 49 -16 53 30 -15 57 6 -17 19 9 -0.09 3 0 0 -15 56 33 1 18 5.4 27 303 -49 -15 41 9 -16 11 58 -15 15 19 -16 37 45 -0.09 2 0 0 -15 14 16 1 18 13.3 28 304 -50 -14 58 46 -15 29 44 -14 32 50 -15 55 38 -0.09 1 0 0 -14 31 17 1 18 21.7 29 304 -51 -14 15 43 -14 46 49 -13 49 40 -15 12 50 -0.09 0 0 0 -13 47 37 1 18 30.4 30 304 -53 -13 32 0 -14 3 14 -13 5 50 -14 29 22 -0.09 - 1 0 0 -13 3 19 1 18 39.5 31 304 -54 -12 47 37 -13 18 59 -12 21 20 -13 45 13 -0.09 - 2 0 0 -12 18 21 1 18 49.0 33 304 -55 -12 2 36 -12 34 6 -11 36 13 -13 0 27 -0.09 - 3 0 0 -11 32 47 1 18 58.8 34 304 -56 -11 16 58 -11 48 36 -10 50 28 -12 15 3 -0.09 - 4 0 0 -10 46 36 1 19 9.1 35 304 -57 -10 30 44 -11 2 29 -10 4 8 -11 29 2 -0.09 - 5 0 0 - 9 59 51 1 19 19.7 36 305 -58 - 9 43 55 -10 15 47 - 9 17 12 -10 42 26 -0.09 - 6 0 0 - 9 12 32 1 19 30.6 37 305 -59 - 8 56 32 - 9 28 31 - 8 29 44 - 9 55 16 -0.09 - 7 0 0 - 8 24 40 1 19 42.0 39 305 -60 - 8 8 37 - 8 40 43 - 7 41 43 - 9 7 34 -0.09 - 8 0 0 - 7 36 18 1 19 53.7 40 305 -61 - 7 20 12 - 7 52 24 - 6 53 12 - 8 19 20 -0.09 - 9 0 0 - 6 47 27 1 20 5.8 41 305 -62 - 6 31 17 - 7 3 36 - 6 4 13 - 7 30 37 -0.09 - 10 0 0 - 5 58 8 1 20 18.2 42 305 -63 - 5 41 55 - 6 14 20 - 5 14 45 - 6 41 26 -0.09 - 11 0 0 - 5 8 22 1 20 31.0 44 305 -64 - 4 52 7 - 5 24 37 - 4 24 52 - 5 51 48 -0.09 - 12 0 0 - 4 18 13 1 20 44.1 45 305 -65 - 4 1 54 - 4 34 30 - 3 34 35 - 5 1 46 -0.09 - 13 0 0 - 3 27 40 1 20 57.5 46 305 -66 - 3 11 20 - 3 44 1 - 2 43 56 - 4 11 20 -0.10 - 14 0 0 - 2 36 47 1 21 11.3 47 304 -67 - 2 20 24 - 2 53 10 - 1 52 57 - 3 20 34 -0.10 - 15 0 0 - 1 45 35 1 21 25.4 49 304 -68 - 1 29 10 - 2 2 0 - 1 1 39 - 2 29 28 -0.10 - 16 0 0 - 0 54 7 1 21 39.8 50 304 -69 - 0 37 39 - 1 10 34 - 0 10 5 - 1 38 5 -0.10 - 17 0 0 - 0 2 23 1 21 54.5 51 304 -70 0 14 7 - 0 18 52 0 41 44 - 0 46 26 -0.10 - 18 0 0 0 49 34 1 22 9.4 52 304 -71 1 6 5 0 33 3 1 33 46 0 5 26 -0.10 - 19 0 0 1 41 42 1 22 24.7 54 303 -72 1 58 15 1 25 10 2 25 58 0 57 30 -0.10 - 20 0 0 2 33 58 1 22 40.2 55 303 -73 2 50 33 2 17 25 3 18 18 1 49 43 -0.10 - 21 0 0 3 26 22 1 22 55.9 56 303 -73 3 42 57 3 9 47 4 10 45 2 42 4 -0.10 - 22 0 0 4 18 50 1 23 11.9 57 302 -74 4 35 27 4 2 15 5 3 16 3 34 29 -0.10 - 23 0 0 5 11 21 1 23 28.1 59 302 -74 5 27 58 4 54 45 5 55 49 4 26 58 -0.10 - 24 0 0 6 3 53 1 23 44.4 60 301 -75 6 20 30 5 47 15 6 48 22 5 19 28 -0.10 - 25 0 0 6 56 22 1 24 1.0 61 301 -75 7 13 1 6 39 45 7 40 54 6 11 56 -0.10 - 26 0 0 7 48 49 1 24 17.7 62 300 -76 8 5 27 7 32 11 8 33 20 7 4 22 -0.10 - 27 0 0 8 41 9 1 24 34.6 64 299 -76 8 57 48 8 24 31 9 25 41 7 56 42 -0.10 - 28 0 0 9 33 22 1 24 51.6 65 298 -76 9 50 0 9 16 44 10 17 54 8 48 55 -0.10 - 29 0 0 10 25 25 1 25 8.8 66 298 -76 10 42 3 10 8 47 11 9 56 9 40 59 -0.11 - 30 0 0 11 17 16 1 25 26.0 67 297 -76 11 33 54 11 0 39 12 1 46 10 32 51 -0.11 - 31 0 0 12 8 53 1 25 43.3 68 296 -76 12 25 30 11 52 17 12 53 21 11 24 30 -0.11 - 32 0 0 13 0 15 1 26 0.7 69 294 -75 13 16 51 12 43 39 13 44 41 12 15 54 -0.11 - 33 0 0 13 51 19 1 26 18.2 71 293 -75 14 7 54 13 34 44 14 35 42 13 7 1 -0.11 - 34 0 0 14 42 3 1 26 35.7 72 291 -75 14 58 38 14 25 30 15 26 24 13 57 49 -0.11 - 35 0 0 15 32 27 1 26 53.2 73 290 -74 15 49 0 15 15 55 16 16 44 14 48 16 -0.11 - 36 0 0 16 22 28 1 27 10.7 74 288 -73 16 38 59 16 5 57 17 6 40 15 38 21 -0.11 - 37 0 0 17 12 4 1 27 28.2 75 286 -73 17 28 33 16 55 35 17 56 12 16 28 1 -0.11 - 38 0 0 18 1 14 1 27 45.7 76 283 -72 18 17 42 17 44 47 18 45 17 17 17 16 -0.11 - 39 0 0 18 49 56 1 28 3.1 77 280 -71 19 6 22 18 33 31 19 33 54 18 6 4 -0.11 - 40 0 0 19 38 10 1 28 20.5 78 277 -70 19 54 33 19 21 47 20 22 1 18 54 23 -0.12 - 41 0 0 20 25 53 1 28 37.8 79 273 -70 20 42 14 20 9 32 21 9 38 19 42 13 -0.12 - 42 0 0 21 13 4 1 28 55.0 80 268 -69 21 29 22 20 56 46 21 56 43 20 29 30 -0.12 - 43 0 0 21 59 42 1 29 12.2 81 263 -68 22 15 58 21 43 27 22 43 14 21 16 16 -0.12 - 44 0 0 22 45 46 1 29 29.2 81 257 -67 23 1 59 22 29 33 23 29 11 22 2 27 -0.12 - 45 0 0 23 31 15 1 29 46.2 82 250 -66 23 47 25 23 15 5 24 14 32 22 48 4 -0.12 - 46 0 0 24 16 8 1 30 3.0 82 242 -65 24 32 15 24 0 1 24 59 17 23 33 4 -0.12 - 47 0 0 25 0 23 1 30 19.7 83 233 -64 25 16 28 24 44 20 25 43 24 24 17 28 -0.12 - 48 0 0 25 44 1 1 30 36.2 83 223 -63 26 0 2 25 28 0 26 26 53 25 1 14 -0.13 - 49 0 0 26 27 0 1 30 52.6 83 214 -62 26 42 57 26 11 3 27 9 43 25 44 22 -0.13 - 50 0 0 27 9 19 1 31 8.8 83 205 -62 27 25 13 26 53 25 27 51 53 26 26 51 -0.13 - 51 0 0 27 50 58 1 31 24.8 82 196 -61 28 6 49 27 35 8 28 33 22 27 8 39 -0.13 - 52 0 0 28 31 56 1 31 40.7 82 189 -60 28 47 44 28 16 10 29 14 11 27 49 47 -0.13 - 53 0 0 29 12 14 1 31 56.4 81 182 -59 29 27 57 28 56 31 29 54 18 28 30 14 -0.13 - 54 0 0 29 51 49 1 32 11.9 80 177 -58 30 7 29 29 36 11 30 33 44 29 10 0 -0.13 - 55 0 0 30 30 43 1 32 27.2 80 172 -57 30 46 19 30 15 8 31 12 27 29 49 4 -0.13 - 56 0 0 31 8 55 1 32 42.3 79 168 -56 31 24 27 30 53 23 31 50 28 30 27 26 -0.13 - 57 0 0 31 46 23 1 32 57.3 78 164 -55 32 1 51 31 30 56 32 27 47 31 5 6 -0.13 - 58 0 0 32 23 10 1 33 12.0 77 161 -54 32 38 34 32 7 46 33 4 22 31 42 3 -0.13 - 59 0 0 32 59 13 1 33 26.5 77 158 -53 33 14 33 32 43 54 33 40 14 32 18 17 -0.13 - 60 0 0 33 34 33 1 33 40.8 76 155 -52 33 49 49 33 19 18 34 15 24 32 53 48 -0.13 - 61 0 0 34 9 11 1 33 54.9 75 153 -52 34 24 23 33 54 0 34 49 50 33 28 37 -0.13 - 62 0 0 34 43 5 1 34 8.8 74 151 -51 34 58 13 34 27 59 35 23 34 34 2 42 -0.13 - 63 0 0 35 16 17 1 34 22.5 73 149 -50 35 31 20 35 1 14 35 56 34 34 36 5 -0.13 - 64 0 0 35 48 46 1 34 35.9 72 147 -49 36 3 45 35 33 48 36 28 52 35 8 45 -0.13 - 65 0 0 36 20 32 1 34 49.2 71 146 -48 36 35 27 36 5 38 37 0 27 35 40 42 -0.13 - 66 0 0 36 51 36 1 35 2.2 71 144 -47 37 6 27 36 36 46 37 31 19 36 11 57 -0.13 - 67 0 0 37 21 57 1 35 15.0 70 143 -46 37 36 44 37 7 12 38 1 29 36 42 30 -0.13 - 68 0 0 37 51 37 1 35 27.7 69 141 -46 38 6 19 37 36 55 38 30 58 37 12 21 -0.13 - 69 0 0 38 20 35 1 35 40.1 68 140 -45 38 35 13 38 5 57 38 59 44 37 41 30 -0.13 - 70 0 0 38 48 51 1 35 52.3 67 139 -44 39 3 25 38 34 18 39 27 49 38 9 57 -0.13 - 71 0 0 39 16 26 1 36 4.3 66 138 -43 39 30 56 39 1 57 39 55 13 38 37 43 -0.13 - 72 0 0 39 43 20 1 36 16.1 66 137 -42 39 57 46 39 28 55 40 21 56 39 4 48 -0.13 - 73 0 0 40 9 34 1 36 27.7 65 135 -42 40 23 55 39 55 13 40 47 59 39 31 13 -0.13 - 74 0 0 40 35 8 1 36 39.1 64 134 -41 40 49 25 40 20 51 41 13 22 39 56 57 -0.13 - 75 0 0 41 0 2 1 36 50.2 63 133 -40 41 14 15 40 45 49 41 38 5 40 22 2 -0.13 - 76 0 0 41 24 16 1 37 1.2 62 132 -39 41 38 26 41 10 7 42 2 9 40 46 27 -0.13 - 77 0 0 41 47 52 1 37 12.0 62 131 -39 42 1 57 41 33 47 42 25 34 41 10 13 -0.13 - 78 0 0 42 10 49 1 37 22.7 61 130 -38 42 24 51 41 56 48 42 48 21 41 33 21 -0.13 - 79 0 0 42 33 8 1 37 33.1 60 129 -37 42 47 6 42 19 11 43 10 30 41 55 50 -0.13 - 80 0 0 42 54 49 1 37 43.3 59 129 -36 43 8 44 42 40 56 43 32 1 42 17 41 -0.13 - 81 0 0 43 15 54 1 37 53.4 58 128 -36 43 29 44 43 2 4 43 52 55 42 38 55 -0.13 - 82 0 0 43 36 21 1 38 3.3 58 127 -35 43 50 8 43 22 35 44 13 13 42 59 32 -0.13 - 83 0 0 43 56 12 1 38 13.0 57 126 -34 44 9 55 43 42 29 44 32 54 43 19 33 -0.13 - 84 0 0 44 15 27 1 38 22.5 56 125 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47 34 15 1 40 12.2 47 114 -25 47 47 16 47 21 14 48 9 4 46 59 29 -0.13 - 98 0 0 47 45 48 1 40 19.6 46 113 -24 47 58 47 47 32 50 48 20 31 47 11 8 -0.13 - 99 0 0 47 56 52 1 40 26.9 46 113 -23 48 9 48 47 43 56 48 31 28 47 22 18 -0.13 -100 0 0 48 7 25 1 40 34.1 45 112 -23 48 20 19 47 54 31 48 41 55 47 32 57 -0.13 -101 0 0 48 17 29 1 40 41.2 44 111 -22 48 30 20 48 4 37 48 51 53 47 43 7 -0.13 -102 0 0 48 27 3 1 40 48.1 44 110 -21 48 39 53 48 14 14 49 1 22 47 52 46 -0.13 -103 0 0 48 36 8 1 40 54.9 43 109 -21 48 48 56 48 23 21 49 10 22 48 1 57 -0.13 -104 0 0 48 44 44 1 41 1.6 42 109 -20 48 57 30 48 31 59 49 18 53 48 10 38 -0.13 -105 0 0 48 52 52 1 41 8.2 42 108 -20 49 5 36 48 40 8 49 26 56 48 18 50 -0.13 -106 0 0 49 0 31 1 41 14.7 41 107 -19 49 13 14 48 47 49 49 34 31 48 26 34 -0.13 -107 0 0 49 7 43 1 41 21.1 40 106 -18 49 20 23 48 55 2 49 41 38 48 33 50 -0.13 -108 0 0 49 14 26 1 41 27.3 40 105 -18 49 27 5 49 1 47 49 48 17 48 40 37 -0.13 -109 0 0 49 20 41 1 41 33.5 39 105 -17 49 33 19 49 8 3 49 54 29 48 46 56 -0.13 -110 0 0 49 26 29 1 41 39.5 38 104 -17 49 39 6 49 13 52 50 0 13 48 52 47 -0.13 -111 0 0 49 31 49 1 41 45.5 38 103 -16 49 44 25 49 19 14 50 5 30 48 58 10 -0.13 -112 0 0 49 36 42 1 41 51.3 37 102 -15 49 49 17 49 24 8 50 10 20 49 3 6 -0.13 -113 0 0 49 41 8 1 41 57.1 37 101 -15 49 53 41 49 28 35 50 14 43 49 7 35 -0.13 -114 0 0 49 45 7 1 42 2.7 36 101 -14 49 57 39 49 32 34 50 18 40 49 11 36 -0.12 -115 0 0 49 48 38 1 42 8.3 35 100 -14 50 1 10 49 36 7 50 22 9 49 15 10 -0.12 -116 0 0 49 51 43 1 42 13.7 35 99 -13 50 4 14 49 39 13 50 25 12 49 18 17 -0.12 -117 0 0 49 54 21 1 42 19.1 34 98 -12 50 6 52 49 41 51 50 27 49 49 20 57 -0.12 -118 0 0 49 56 33 1 42 24.3 33 98 -12 50 9 3 49 44 3 50 29 59 49 23 9 -0.12 -119 0 0 49 58 17 1 42 29.5 33 97 -11 50 10 47 49 45 48 50 31 42 49 24 55 -0.12 -120 0 0 49 59 35 1 42 34.6 32 96 -11 50 12 4 49 47 7 50 32 59 49 26 14 -0.12 -121 0 0 50 0 27 1 42 39.6 31 95 -10 50 12 56 49 47 58 50 33 50 49 27 6 -0.12 -122 0 0 50 0 51 1 42 44.5 31 94 -9 50 13 20 49 48 23 50 34 14 49 27 31 -0.12 -123 0 0 50 0 50 1 42 49.3 30 94 -9 50 13 18 49 48 21 50 34 12 49 27 29 -0.12 -124 0 0 50 0 21 1 42 54.1 30 93 -8 50 12 50 49 47 52 50 33 44 49 27 0 -0.12 -125 0 0 49 59 25 1 42 58.7 29 92 -8 50 11 54 49 46 57 50 32 49 49 26 4 -0.12 -126 0 0 49 58 3 1 43 3.3 28 91 -7 50 10 32 49 45 34 50 31 27 49 24 41 -0.12 -127 0 0 49 56 14 1 43 7.8 28 91 -6 50 8 44 49 43 45 50 29 39 49 22 51 -0.12 -128 0 0 49 53 58 1 43 12.1 27 90 -6 50 6 28 49 41 28 50 27 24 49 20 34 -0.12 -129 0 0 49 51 15 1 43 16.5 26 89 -5 50 3 45 49 38 45 50 24 43 49 17 49 -0.12 -130 0 0 49 48 4 1 43 20.7 26 88 -5 50 0 36 49 35 34 50 21 34 49 14 37 -0.12 -131 0 0 49 44 27 1 43 24.8 25 88 -4 49 56 59 49 31 55 50 17 59 49 10 57 -0.12 -132 0 0 49 40 22 1 43 28.9 25 87 -3 49 52 54 49 27 49 50 13 56 49 6 50 -0.12 -133 0 0 49 35 49 1 43 32.8 24 86 -3 49 48 22 49 23 15 50 9 25 49 2 14 -0.12 -134 0 0 49 30 48 1 43 36.7 23 85 -2 49 43 23 49 18 13 50 4 27 48 57 10 -0.12 -135 0 0 49 25 19 1 43 40.5 23 84 -2 49 37 55 49 12 43 49 59 2 48 51 38 -0.12 -136 0 0 49 19 22 1 43 44.2 22 84 -1 49 31 59 49 6 45 49 53 8 48 45 38 -0.12 -137 0 0 49 12 56 1 43 47.8 21 83 0 49 25 35 49 0 17 49 46 46 48 39 8 -0.12 -138 0 0 49 6 1 1 43 51.4 21 82 0 49 18 42 48 53 21 49 39 55 48 32 10 -0.12 -139 0 0 48 58 38 1 43 54.8 20 81 1 49 11 20 48 45 56 49 32 36 48 24 42 -0.12 -140 0 0 48 50 45 1 43 58.2 19 81 1 49 3 28 48 38 1 49 24 48 48 16 44 -0.12 -141 0 0 48 42 22 1 44 1.4 19 80 2 48 55 8 48 29 37 49 16 30 48 8 17 -0.12 -142 0 0 48 33 29 1 44 4.6 18 79 3 48 46 17 48 20 42 49 7 42 47 59 19 -0.12 -143 0 0 48 24 6 1 44 7.7 17 78 3 48 36 56 48 11 17 48 58 25 47 49 50 -0.12 -144 0 0 48 14 13 1 44 10.7 17 78 4 48 27 4 48 1 21 48 48 37 47 39 51 -0.12 -145 0 0 48 3 48 1 44 13.6 16 77 5 48 16 42 47 50 54 48 38 18 47 29 20 -0.12 -146 0 0 47 52 51 1 44 16.4 15 76 5 48 5 48 47 39 55 48 27 28 47 18 17 -0.12 -147 0 0 47 41 23 1 44 19.0 15 76 6 47 54 22 47 28 25 48 16 6 47 6 42 -0.12 -148 0 0 47 29 22 1 44 21.6 14 75 6 47 42 24 47 16 21 48 4 12 46 54 35 -0.12 -149 0 0 47 16 49 1 44 24.1 13 74 7 47 29 53 47 3 45 47 51 46 46 41 54 -0.12 -150 0 0 47 3 42 1 44 26.5 12 73 8 47 16 49 46 50 36 47 38 47 46 28 40 -0.12 -151 0 0 46 50 1 1 44 28.8 12 73 8 47 3 11 46 36 52 47 25 14 46 14 51 -0.12 -152 0 0 46 35 47 1 44 30.9 11 72 9 46 48 59 46 22 34 47 11 7 46 0 28 -0.12 -153 0 0 46 20 57 1 44 32.9 10 71 10 46 34 13 46 7 41 46 56 26 45 45 30 -0.12 -154 0 0 46 5 32 1 44 34.9 10 70 10 46 18 51 45 52 13 46 41 10 45 29 57 -0.12 -155 0 0 45 49 31 1 44 36.7 9 70 11 46 2 53 45 36 9 46 25 17 45 13 47 -0.12 -156 0 0 45 32 53 1 44 38.3 8 69 12 45 46 19 45 19 28 46 8 49 44 57 0 -0.12 -157 0 0 45 15 39 1 44 39.9 7 68 13 45 29 8 45 2 10 45 51 44 44 39 36 -0.12 -158 0 0 44 57 46 1 44 41.3 7 68 13 45 11 20 44 44 14 45 34 2 44 21 34 -0.13 -159 0 0 44 39 16 1 44 42.5 6 67 14 44 52 53 44 25 39 45 15 41 44 2 53 -0.13 -160 0 0 44 20 6 1 44 43.7 5 66 15 44 33 47 44 6 25 44 56 42 43 43 33 -0.13 -161 0 0 44 0 16 1 44 44.6 4 66 15 44 14 1 43 46 32 44 37 3 43 23 32 -0.14 -162 0 0 43 39 47 1 44 45.4 3 65 16 43 53 36 43 25 58 44 16 44 43 2 52 -0.15 -163 0 0 43 18 36 1 44 46.1 3 64 17 43 32 29 43 4 43 43 55 45 42 41 29 -0.16 -164 0 0 42 56 43 1 44 46.6 2 63 18 43 10 40 42 42 46 43 34 4 42 19 25 -0.19 -165 0 0 42 34 8 1 44 46.9 1 63 18 42 48 10 42 20 6 43 11 40 41 56 38 -0.27 -166 0 0 42 10 49 1 44 47.1 0 62 19 42 24 56 41 56 43 42 48 34 .. .. .. -1.20 Uncertainty in time = +/- 6 secs Prediction of 2020 Dec 31.0 Data for the target star ------------------------ * name: UCAC4-553-021438 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 59 43.6595 DE: +20 28 44.650 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 59 43.6595 DE: +20 28 44.650 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (931) Whittemora asteroid class: approx. diameter [km]: 46 approx. diameter ["]: 0.039 distance from Earth [AU]: 1.62320 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: Preston date of fit: 2020 Nov 29 source of used astrometry: MPC, FASTT, TMO number of used observations: 2478 number of rejected observations: 13 time covered by the observations: 1962 Jul 24 - 2020 Oct 21 1 sigma uncertainty ellipse (major, minor, PA): 0.041", 0.014", 78.7° remarks: * orbital elements for (931)Whittemora : Mean anomaly = 21.63778671 deg Arg. of pericenter = 315.44340291 deg Long. of node = 111.00016954 deg Inclination = 11.48381301 deg Eccentricity = 0.23283680 Semimajor axis = 3.17005862 AU Perihelion dist = 2.43195231 AU Mag: H = 9.30, G = 0.15 Epoch of elements : MJD 59235.06300000 TDT (2021 Jan 21.0630) ------ occelmnt file for Occult BEGIN ----------------------------------- Preston2020Nov29,6.1,2021,1,21,1.5113,0.07516,0.09340,-3.29773,2.63106,0.00304,0.00025,0.00000,0.00000 -53.0631,20.4792,160.15,-19.88,False UCAC4-553-021438,5.99546097,20.4790695,0.00,12.22,0.00,0.0,0,,6.01640889,20.4792384 931,Whittemora,13.07,45.9,1.6232,0,0,-1.270,14.25,,3.2 0,21.4522,2021,1,20,315.4434,111.0002,11.4838,0.23284,3.17006,2.43195,9.30,5.0,0.15 1.837,0.0410,0.0140,79,0.0326,Known errors 20210121_021438,59214.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2020 Dec 31, 00:45 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org