IOTA/IOTA-ES occultation update for (449) Hamburga / UCAC4 576-038073 event on 2023 Apr 03, 00:32 UT Visible from SE USA Summary ------- On 2023 Apr 03 UT, the 73.3 km diameter asteroid (449) Hamburga will occult a 13.8 mag star in the constellation Gemini for observers along a path across SE USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.86 mag to 14.01 mag (the magnitude of the asteroid) for at most 4.230 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 Apr 03, 00:28 - 2023 Apr 03, 00:41 * geocentric midpoint of event [JD]: 2460037.52428817 * magnitude of target star: 13.80 * magnitude drop [mag]: 0.86 * estimated maximum duration [s]: 4.230 * Moon: 90 % sunlit, 50° distance * Sun: 93° distance * rough path description: SE USA Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 73 * 1 sigma uncertainty interval [path widths]: +/- 0.07 * 1 sigma uncertainty interval [seconds]: +/- 1.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.004", 96°) * approx speed of asteroid's shadow [km/s]: 17.3205 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 576-038073 by 449 Hamburga on 2023 Apr 3 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 176 0 0 8 20 53 0 28 50.4 0 65 86 .. .. .. 8 42 55 .. .. .. 8 46 5 .... 177 0 0 8 49 10 0 28 50.5 1 65 85 8 27 10 9 11 11 8 24 1 9 14 21 -0.14 178 0 0 9 17 17 0 28 50.7 2 65 84 8 55 18 9 39 16 8 52 9 9 42 26 -0.09 179 0 0 9 45 12 0 28 51.0 3 65 83 9 23 14 10 7 10 9 20 5 10 10 19 -0.08 -180 0 0 10 12 55 0 28 51.5 5 65 82 9 50 59 10 34 52 9 47 50 10 38 1 -0.07 -179 0 0 10 40 26 0 28 52.1 6 65 81 10 18 31 11 2 21 10 15 23 11 5 30 -0.06 -178 0 0 11 7 44 0 28 52.9 7 66 80 10 45 51 11 29 37 10 42 42 11 32 46 -0.06 -177 0 0 11 34 48 0 28 53.8 8 66 79 11 12 56 11 56 39 11 9 48 11 59 48 -0.05 -176 0 0 12 1 37 0 28 54.8 9 66 78 11 39 47 12 23 27 11 36 39 12 26 35 -0.05 -175 0 0 12 28 11 0 28 55.9 10 66 77 12 6 23 12 49 59 12 3 15 12 53 7 -0.05 -174 0 0 12 54 29 0 28 57.2 11 66 76 12 32 43 13 16 16 12 29 36 13 19 23 -0.05 -173 0 0 13 20 31 0 28 58.5 12 67 74 12 58 47 13 42 16 12 55 40 13 45 23 -0.05 -172 0 0 13 46 17 0 29 0.0 13 67 73 13 24 35 14 7 59 13 21 28 14 11 6 -0.05 -171 0 0 14 11 45 0 29 1.7 14 67 72 13 50 5 14 33 25 13 46 58 14 36 32 -0.05 -170 0 0 14 36 55 0 29 3.4 15 67 71 14 15 17 14 58 33 14 12 11 15 1 40 -0.05 -169 0 0 15 1 47 0 29 5.2 16 68 70 14 40 11 15 23 23 14 37 5 15 26 29 -0.05 -168 0 0 15 26 20 0 29 7.2 17 68 69 15 4 46 15 47 54 15 1 40 15 50 59 -0.04 -167 0 0 15 50 33 0 29 9.3 18 68 68 15 29 2 16 12 5 15 25 57 16 15 11 -0.04 -166 0 0 16 14 27 0 29 11.5 19 69 67 15 52 58 16 35 57 15 49 53 16 39 2 -0.04 -165 0 0 16 38 1 0 29 13.8 21 69 66 16 16 34 16 59 28 16 13 29 17 2 33 -0.04 -164 0 0 17 1 14 0 29 16.2 22 69 65 16 39 50 17 22 39 16 36 45 17 25 43 -0.04 -163 0 0 17 24 6 0 29 18.7 23 69 64 17 2 44 17 45 29 16 59 40 17 48 33 -0.04 -162 0 0 17 46 37 0 29 21.3 24 70 63 17 25 18 18 7 57 17 22 14 18 11 1 -0.04 -161 0 0 18 8 47 0 29 24.0 25 70 62 17 47 29 18 30 4 17 44 26 18 33 8 -0.04 -160 0 0 18 30 34 0 29 26.8 26 70 61 18 9 19 18 51 49 18 6 16 18 54 52 -0.04 -159 0 0 18 51 59 0 29 29.7 27 71 60 18 30 47 19 13 12 18 27 44 19 16 14 -0.04 -158 0 0 19 13 1 0 29 32.7 28 71 59 18 51 51 19 34 12 18 48 49 19 37 14 -0.04 -157 0 0 19 33 41 0 29 35.8 29 71 58 19 12 33 19 54 49 19 9 31 19 57 51 -0.04 -156 0 0 19 53 57 0 29 39.0 30 72 57 19 32 52 20 15 2 19 29 51 20 18 4 -0.04 -155 0 0 20 13 50 0 29 42.3 31 72 56 19 52 48 20 34 53 19 49 47 20 37 54 -0.04 -154 0 0 20 33 20 0 29 45.6 32 72 55 20 12 20 20 54 20 20 9 19 20 57 21 -0.04 -153 0 0 20 52 25 0 29 49.1 33 73 54 20 31 28 21 13 23 20 28 27 21 16 24 -0.04 -152 0 0 21 11 7 0 29 52.6 34 73 53 20 50 12 21 32 2 20 47 12 21 35 2 -0.04 -151 0 0 21 29 24 0 29 56.2 35 74 52 21 8 31 21 50 17 21 5 32 21 53 17 -0.04 -150 0 0 21 47 17 0 29 59.9 36 74 51 21 26 27 22 8 8 21 23 27 22 11 7 -0.04 -149 0 0 22 4 46 0 30 3.6 37 74 50 21 43 58 22 25 34 21 40 59 22 28 33 -0.04 -148 0 0 22 21 49 0 30 7.5 38 75 49 22 1 4 22 42 35 21 58 5 22 45 34 -0.04 -147 0 0 22 38 28 0 30 11.3 39 75 48 22 17 45 22 59 11 22 14 47 23 2 10 -0.04 -146 0 0 22 54 42 0 30 15.3 40 76 47 22 34 2 23 15 23 22 31 4 23 18 21 -0.04 -145 0 0 23 10 31 0 30 19.3 41 76 46 22 49 53 23 31 10 22 46 55 23 34 7 -0.04 -144 0 0 23 25 55 0 30 23.4 42 76 45 23 5 19 23 46 31 23 2 22 23 49 29 -0.03 -143 0 0 23 40 54 0 30 27.6 43 77 44 23 20 20 24 1 28 23 17 23 24 4 25 -0.03 -142 0 0 23 55 27 0 30 31.8 44 77 43 23 34 55 24 15 59 23 31 59 24 18 55 -0.03 -141 0 0 24 9 35 0 30 36.1 44 78 42 23 49 5 24 30 4 23 46 9 24 33 1 -0.03 -140 0 0 24 23 17 0 30 40.5 45 78 41 24 2 50 24 43 45 23 59 54 24 46 41 -0.03 -139 0 0 24 36 34 0 30 44.9 46 79 40 24 16 9 24 56 59 24 13 13 24 59 55 -0.03 -138 0 0 24 49 25 0 30 49.3 47 79 39 24 29 2 25 9 49 24 26 7 25 12 44 -0.03 -137 0 0 25 1 51 0 30 53.9 48 79 38 24 41 30 25 22 12 24 38 35 25 25 8 -0.03 -136 0 0 25 13 51 0 30 58.4 49 80 37 24 53 32 25 34 11 24 50 37 25 37 6 -0.03 -135 0 0 25 25 26 0 31 3.1 50 80 36 25 5 8 25 45 43 25 2 14 25 48 38 -0.03 -134 0 0 25 36 34 0 31 7.7 51 81 35 25 16 19 25 56 50 25 13 25 25 59 44 -0.03 -133 0 0 25 47 17 0 31 12.4 52 81 35 25 27 4 26 7 31 25 24 10 26 10 25 -0.03 -132 0 0 25 57 35 0 31 17.2 53 82 34 25 37 23 26 17 47 25 34 29 26 20 41 -0.03 -131 0 0 26 7 26 0 31 22.0 54 82 33 25 47 16 26 27 36 25 44 22 26 30 30 -0.03 -130 0 0 26 16 52 0 31 26.9 55 83 32 25 56 43 26 37 1 25 53 50 26 39 54 -0.03 -129 0 0 26 25 52 0 31 31.8 56 83 31 26 5 45 26 45 59 26 2 51 26 48 52 -0.03 -128 0 0 26 34 26 0 31 36.7 57 84 30 26 14 20 26 54 32 26 11 27 26 57 25 -0.03 -127 0 0 26 42 34 0 31 41.7 58 84 29 26 22 30 27 2 39 26 19 37 27 5 31 -0.03 -126 0 0 26 50 17 0 31 46.8 58 85 28 26 30 14 27 10 20 26 27 21 27 13 13 -0.03 -125 0 0 26 57 34 0 31 51.8 59 85 27 26 37 32 27 17 35 26 34 40 27 20 28 -0.03 -124 0 0 27 4 25 0 31 56.9 60 86 26 26 44 24 27 24 25 26 41 32 27 27 18 -0.03 -123 0 0 27 10 50 0 32 2.1 61 87 25 26 50 51 27 30 49 26 47 59 27 33 41 -0.03 -122 0 0 27 16 49 0 32 7.3 62 87 24 26 56 51 27 36 48 26 53 59 27 39 40 -0.03 -121 0 0 27 22 23 0 32 12.5 63 88 23 27 2 26 27 42 20 26 59 34 27 45 12 -0.03 -120 0 0 27 27 31 0 32 17.7 64 88 23 27 7 35 27 47 28 27 4 43 27 50 19 -0.03 -119 0 0 27 32 13 0 32 23.0 65 89 22 27 12 18 27 52 9 27 9 26 27 55 0 -0.03 -118 0 0 27 36 30 0 32 28.3 66 89 21 27 16 35 27 56 25 27 13 44 27 59 16 -0.03 -117 0 0 27 40 20 0 32 33.7 67 90 20 27 20 27 28 0 15 27 17 35 28 3 6 -0.03 -116 0 0 27 43 45 0 32 39.1 68 91 19 27 23 52 28 3 39 27 21 1 28 6 30 -0.03 -115 0 0 27 46 45 0 32 44.5 68 91 18 27 26 52 28 6 37 27 24 1 28 9 29 -0.03 -114 0 0 27 49 18 0 32 49.9 69 92 17 27 29 26 28 9 10 27 26 35 28 12 2 -0.03 -113 0 0 27 51 26 0 32 55.4 70 93 16 27 31 34 28 11 18 27 28 43 28 14 9 -0.03 -112 0 0 27 53 8 0 33 0.9 71 93 15 27 33 16 28 12 59 27 30 25 28 15 50 -0.03 -111 0 0 27 54 24 0 33 6.4 72 94 14 27 34 33 28 14 15 27 31 42 28 17 6 -0.03 -110 0 0 27 55 14 0 33 12.0 73 95 13 27 35 23 28 15 6 27 32 32 28 17 57 -0.03 -109 0 0 27 55 39 0 33 17.5 74 95 13 27 35 48 28 15 30 27 32 57 28 18 21 -0.03 -108 0 0 27 55 38 0 33 23.1 75 96 12 27 35 47 28 15 29 27 32 56 28 18 20 -0.03 -107 0 0 27 55 11 0 33 28.8 76 97 11 27 35 20 28 15 2 27 32 29 28 17 53 -0.03 -106 0 0 27 54 18 0 33 34.4 77 98 10 27 34 27 28 14 10 27 31 36 28 17 1 -0.03 -105 0 0 27 53 0 0 33 40.1 77 99 9 27 33 8 28 12 52 27 30 17 28 15 43 -0.03 -104 0 0 27 51 16 0 33 45.8 78 100 8 27 31 24 28 11 8 27 28 33 28 13 59 -0.03 -103 0 0 27 49 6 0 33 51.5 79 101 7 27 29 13 28 8 58 27 26 22 28 11 49 -0.03 -102 0 0 27 46 30 0 33 57.3 80 102 6 27 26 37 28 6 23 27 23 46 28 9 14 -0.03 -101 0 0 27 43 28 0 34 3.0 81 104 5 27 23 35 28 3 22 27 20 43 28 6 13 -0.03 -100 0 0 27 40 0 0 34 8.8 82 106 4 27 20 7 27 59 55 27 17 15 28 2 46 -0.03 - 99 0 0 27 36 7 0 34 14.6 83 108 4 27 16 12 27 56 2 27 13 21 27 58 53 -0.03 - 98 0 0 27 31 48 0 34 20.4 83 110 3 27 11 52 27 51 43 27 9 1 27 54 35 -0.03 - 97 0 0 27 27 2 0 34 26.3 84 113 2 27 7 6 27 46 59 27 4 14 27 49 50 -0.03 - 96 0 0 27 21 51 0 34 32.1 85 117 1 27 1 54 27 41 48 26 59 2 27 44 40 -0.03 - 95 0 0 27 16 14 0 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46 22 55 15 22 10 47 22 58 13 -0.03 - 69 0 0 22 17 37 0 37 13.3 68 283 -25 21 56 50 22 38 24 21 53 51 22 41 23 -0.03 - 68 0 0 22 0 18 0 37 19.2 67 283 -26 21 39 29 22 21 7 21 36 29 22 24 7 -0.03 - 67 0 0 21 42 34 0 37 25.1 66 284 -27 21 21 42 22 3 26 21 18 42 22 6 25 -0.03 - 66 0 0 21 24 24 0 37 31.0 65 284 -28 21 3 30 21 45 19 21 0 30 21 48 19 -0.03 - 65 0 0 21 5 50 0 37 36.8 64 285 -29 20 44 53 21 26 47 20 41 52 21 29 47 -0.03 - 64 0 0 20 46 50 0 37 42.6 63 285 -30 20 25 51 21 7 50 20 22 50 21 10 51 -0.03 - 63 0 0 20 27 26 0 37 48.4 62 286 -31 20 6 24 20 48 28 20 3 23 20 51 30 -0.03 - 62 0 0 20 7 38 0 37 54.2 61 286 -32 19 46 33 20 28 43 19 43 32 20 31 44 -0.03 - 61 0 0 19 47 25 0 37 59.9 60 286 -33 19 26 18 20 8 32 19 23 16 20 11 34 -0.03 - 60 0 0 19 26 48 0 38 5.6 59 287 -34 19 5 38 19 47 58 19 2 36 19 51 0 -0.03 - 59 0 0 19 5 47 0 38 11.3 58 287 -35 18 44 35 19 27 0 18 41 32 19 30 3 -0.03 - 58 0 0 18 44 23 0 38 16.9 57 288 -36 18 23 8 19 5 38 18 20 5 19 8 41 -0.03 - 57 0 0 18 22 36 0 38 22.5 56 288 -37 18 1 18 18 43 53 17 58 15 18 46 57 -0.03 - 56 0 0 18 0 25 0 38 28.0 55 288 -38 17 39 5 18 21 45 17 36 1 18 24 49 -0.04 - 55 0 0 17 37 52 0 38 33.5 54 289 -39 17 16 29 17 59 15 17 13 25 18 2 19 -0.04 - 54 0 0 17 14 56 0 38 38.9 53 289 -40 16 53 31 17 36 22 16 50 27 17 39 26 -0.04 - 53 0 0 16 51 39 0 38 44.3 52 290 -41 16 30 11 17 13 7 16 27 7 17 16 12 -0.04 - 52 0 0 16 28 0 0 38 49.6 51 290 -42 16 6 30 16 49 30 16 3 25 16 52 35 -0.04 - 51 0 0 16 4 0 0 38 54.8 50 290 -43 15 42 27 16 25 32 15 39 22 16 28 38 -0.04 - 50 0 0 15 39 39 0 39 0.0 49 291 -44 15 18 4 16 1 14 15 14 58 16 4 20 -0.04 - 49 0 0 15 14 57 0 39 5.2 48 291 -45 14 53 20 15 36 35 14 50 14 15 39 41 -0.04 - 48 0 0 14 49 56 0 39 10.2 47 291 -46 14 28 17 15 11 36 14 25 10 15 14 42 -0.04 - 47 0 0 14 24 36 0 39 15.2 46 291 -48 14 2 54 14 46 18 13 59 47 14 49 24 -0.04 - 46 0 0 13 58 56 0 39 20.1 45 292 -49 13 37 12 14 20 40 13 34 5 14 23 47 -0.04 - 45 0 0 13 32 58 0 39 25.0 44 292 -50 13 11 12 13 54 44 13 8 5 13 57 52 -0.04 - 44 0 0 13 6 42 0 39 29.7 42 292 -51 12 44 54 13 28 31 12 41 47 13 31 39 -0.04 - 43 0 0 12 40 10 0 39 34.4 41 293 -52 12 18 19 13 2 0 12 15 11 13 5 8 -0.04 - 42 0 0 12 13 20 0 39 39.0 40 293 -53 11 51 28 12 35 12 11 48 20 12 38 21 -0.04 - 41 0 0 11 46 14 0 39 43.5 39 293 -54 11 24 20 12 8 8 11 21 12 12 11 17 -0.04 - 40 0 0 11 18 53 0 39 47.9 38 293 -55 10 56 57 11 40 49 10 53 49 11 43 58 -0.04 - 39 0 0 10 51 17 0 39 52.2 37 293 -56 10 29 20 11 13 15 10 26 11 11 16 24 -0.04 - 38 0 0 10 23 27 0 39 56.4 36 294 -57 10 1 28 10 45 27 9 58 19 10 48 36 -0.04 - 37 0 0 9 55 24 0 40 0.5 35 294 -58 9 33 23 10 17 25 9 30 14 10 20 34 -0.04 - 36 0 0 9 27 8 0 40 4.5 34 294 -60 9 5 6 9 49 10 9 1 56 9 52 20 -0.04 - 35 0 0 8 58 39 0 40 8.4 33 294 -61 8 36 36 9 20 43 8 33 26 9 23 53 -0.04 - 34 0 0 8 30 0 0 40 12.2 31 294 -62 8 7 55 8 52 5 8 4 45 8 55 15 -0.04 - 33 0 0 8 1 10 0 40 15.9 30 295 -63 7 39 4 8 23 16 7 35 54 8 26 27 -0.04 - 32 0 0 7 32 10 0 40 19.5 29 295 -64 7 10 3 7 54 18 7 6 53 7 57 28 -0.04 - 31 0 0 7 3 1 0 40 22.9 28 295 -65 6 40 53 7 25 10 6 37 43 7 28 20 -0.04 - 30 0 0 6 33 44 0 40 26.3 27 295 -66 6 11 35 6 55 54 6 8 25 6 59 4 -0.04 - 29 0 0 6 4 20 0 40 29.5 26 295 -67 5 42 10 6 26 30 5 38 59 6 29 41 -0.05 - 28 0 0 5 34 49 0 40 32.6 25 295 -68 5 12 38 5 57 0 5 9 27 6 0 11 -0.05 - 27 0 0 5 5 12 0 40 35.5 24 295 -70 4 43 1 5 27 23 4 39 50 5 30 35 -0.05 - 26 0 0 4 35 30 0 40 38.3 23 295 -71 4 13 19 4 57 42 4 10 8 5 0 53 -0.05 - 25 0 0 4 5 44 0 40 41.1 21 295 -72 3 43 32 4 27 57 3 40 21 4 31 8 -0.05 - 24 0 0 3 35 55 0 40 43.6 20 296 -73 3 13 43 3 58 8 3 10 32 4 1 19 -0.05 - 23 0 0 3 6 3 0 40 46.1 19 296 -74 2 43 51 3 28 16 2 40 40 3 31 27 -0.05 - 22 0 0 2 36 10 0 40 48.4 18 296 -75 2 13 57 2 58 23 2 10 46 3 1 34 -0.05 - 21 0 0 2 6 16 0 40 50.5 17 296 -76 1 44 3 2 28 28 1 40 52 2 31 40 -0.05 - 20 0 0 1 36 21 0 40 52.6 16 296 -77 1 14 9 1 58 34 1 10 58 2 1 46 -0.05 - 19 0 0 1 6 28 0 40 54.5 15 296 -79 0 44 16 1 28 41 0 41 5 1 31 52 -0.05 - 18 0 0 0 36 37 0 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36 36 - 4 52 36 - 5 39 46 - 4 49 26 -0.84 Uncertainty in time = +/- 1 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: UCAC4 576-038073 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 10 49.5836 DE: +25 09 47.240 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 10 49.5834 DE: +25 09 47.240 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 13.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (449) Hamburga asteroid class: approx. diameter [km]: 73 approx. diameter ["]: 0.056 distance from Earth [AU]: 1.80060 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 date of fit: 2023 Feb 07 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", 0.004", 95.627° remarks: * orbital elements for (449)Hamburga : Mean anomaly = 359.8586080801 deg Arg. of pericenter = 48.7341104985 deg Long. of node = 85.7706579048 deg Inclination = 3.0791618939 deg Eccentricity = 0.1730325202 Semimajor axis = 2.5506061239 AU Perihelion dist = 2.1092683183 AU Mag: H = 9.81, G = 0.15 Epoch of elements : MJD 60037.02256944 TDT (2023 Apr 03.0226) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Feb07,4.23,2023,4,3,0.582916,0.003796,0.028057,9.693060,-1.272236,0.005313,-0.000677,0.000000,0.000000 -91.7759,25.1261,172.13,5.14,False UCAC4 576-038073,7.18043992,25.1631221,0.00,13.80,0.00,0.0,0,,7.20400665,25.1260559,0.86,0.00,0,0,1 449,Hamburga,14.01,73.3,1.8006,0,0,3.486,-6.22,,4.0,0 0,359.6112,2023,4,2,48.7341,85.7707,3.0792,0.17303,2.55061,2.10927,9.86,5.0,0.15 1.072,0.0137,0.0040,96,0.0040,Known errors,-1.00,-1,-1,-1 20230403_038073,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org