The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 12UY174 # Created Sun Dec 22 02:09:22 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 66 observations of 66 # Arc: 5.37y # First observation: 2009/09/08 # Last observation: 2015/01/23 # Chi-squared of fit: 106.46 DOF: 126 RMS: 0.22 # Min/Max residuals: -0.73 0.63 # Exact a, adot, b, bdot, g, gdot: 4.443829E-05 4.941648E-01 6.884983E-06 9.237369E-02 1.780474E-01 2.508968E-02 # Covariance matrix: 1.5534E-08 1.2633E-02 3.0977E-09 2.5195E-03 6.2183E-13 2.2455E-03 1.2633E-02 1.0475E+04 2.5194E-03 2.0891E+03 5.0533E-07 1.8619E+03 3.0977E-09 2.5194E-03 6.1934E-10 5.0246E-04 1.2401E-13 4.4782E-04 2.5195E-03 2.0891E+03 5.0246E-04 4.1664E+02 1.0078E-07 3.7132E+02 6.2183E-13 5.0533E-07 1.2401E-13 1.0078E-07 2.4895E-17 8.9822E-08 2.2455E-03 1.8619E+03 4.4782E-04 3.7132E+02 8.9822E-08 3.3093E+02 # lat0 lon0 xBary yBary zBary JD0 -0.590979 -22.974414 -0.153319 -0.010249 -0.991489 2455082.826000 # Heliocentric elements and errors Epoch: 2455082.5000 = 2009/09/08 Mean Anomaly: 7.41213 +/- 0.002 Argument of Peri: 341.02372 +/- 0.000 Long of Asc Node: 341.01548 +/- 0.000 Inclination: 10.61294 +/- 0.000 Eccentricity: 0.34795922 +/- 129.7829 Semi-Major Axis: 10.03915255 +/- 0.0000 Time of Perihelion: 2454843.2870 +/- 0.0 Perihelion: 6.54593688 +/- 1302.9107 Aphelion: 13.53236823 +/- 1302.9107 Period (y) 31.8093 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 6.14688528 +/- 0.0000 Ecliptic Y -2.44126576 +/- 0.0000 Ecliptic Z -0.05786572 +/- 0.0000 Ecliptic XDOT 0.00333861 +/- 0.0004 Ecliptic YDOT 0.00684472 +/- 0.0006 Ecliptic ZDOT 0.00141630 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 6.61415824 +/- 0.0000 Geocenter to KBO 5.61650319 +/- 0.0000 # Hcoef: 13.14
The following table shows the complete astrometric record for 12UY174. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (12UY174) followed by the observatory code and reference code for the source of the astrometry.
2009 09 08.325234 22 35 52.283 -09 28 50.52 21.4G 12UY174 F51 C~8MSZ 2009 09 08.335388 22 35 52.072 -09 28 51.48 21.2G 12UY174 F51 C~8MSZ 2009 09 21.23748 22 31 15.20 -09 43 40.5 21.9V 12UY174 G96 C~8MSZ 2009 09 21.24462 22 31 15.09 -09 43 41.5 21.5V 12UY174 G96 C~8MSZ 2009 09 21.25174 22 31 14.91 -09 43 41.9 21.2V 12UY174 G96 C~8MSZ 2009 09 21.25892 22 31 14.80 -09 43 42.1 21.1V 12UY174 G96 C~8MSZ 2009 09 21.373469 22 31 12.532 -09 43 48.53 21.0G 12UY174 F51 C~8MSZ 2009 09 28.306238 22 29 02.896 -09 49 51.20 21.2G 12UY174 F51 C~8MSZ 2009 09 28.313748 22 29 02.781 -09 49 51.66 20.7G 12UY174 F51 C~8MSZ 2010 06 15.556750 00 12 27.672 +04 21 46.87 22.0G 12UY174 F51 C~8MSZ 2010 06 15.563983 00 12 27.773 +04 21 48.35 21.9G 12UY174 F51 C~8MSZ 2010 06 16.552608 00 12 44.347 +04 24 42.06 22.1G 12UY174 F51 C~8MSZ 2010 06 19.538508 00 13 31.691 +04 33 11.95 21.7G 12UY174 F51 C~8MSZ 2010 06 19.544620 00 13 31.795 +04 33 12.56 21.8G 12UY174 F51 C~8MSZ 2010 06 22.543693 00 14 15.296 +04 41 21.22 21.4G 12UY174 F51 C~8MSZ 2010 06 22.550928 00 14 15.324 +04 41 22.06 22.2G 12UY174 F51 C~8MSZ 2010 09 13.471198 00 05 54.285 +05 25 56.37 21.6G 12UY174 F51 C~8MSZ 2010 09 13.484487 00 05 53.989 +05 25 55.29 21.0G 12UY174 F51 C~8MSZ 2010 09 13.496272 00 05 53.730 +05 25 54.31 21.0G 12UY174 F51 C~8MSZ 2010 09 15.487746 00 05 10.490 +05 23 04.82 21.3G 12UY174 F51 C~8MSZ 2010 09 15.496973 00 05 10.292 +05 23 04.02 21.5G 12UY174 F51 C~8MSZ 2010 09 15.506316 00 05 10.066 +05 23 03.04 21.3G 12UY174 F51 C~8MSZ 2010 09 15.515684 00 05 09.858 +05 23 02.26 21.1G 12UY174 F51 C~8MSZ 2010 09 16.435312 00 04 49.792 +05 21 41.95 21.4G 12UY174 F51 C~8MSZ 2010 09 16.439125 00 04 49.704 +05 21 41.47 21.4G 12UY174 F51 C~8MSZ 2010 09 16.446472 00 04 49.541 +05 21 40.89 21.5G 12UY174 F51 C~8MSZ 2010 09 16.450429 00 04 49.459 +05 21 40.41 21.1G 12UY174 F51 C~8MSZ 2010 10 03.383367 23 58 36.292 +04 54 21.59 21.1G 12UY174 F51 C~8MSZ 2010 10 03.396639 23 58 36.003 +04 54 20.30 21.5G 12UY174 F51 C~8MSZ 2010 10 03.411248 23 58 35.686 +04 54 18.74 21.5G 12UY174 F51 C~8MSZ 2010 10 03.425249 23 58 35.369 +04 54 17.17 21.6G 12UY174 F51 C~8MSZ 2010 10 09.280518 23 56 32.314 +04 44 23.76 21.1G 12UY174 F51 C~8MSZ 2010 10 09.292061 23 56 32.084 +04 44 22.53 21.4G 12UY174 F51 C~8MSZ 2010 10 09.305107 23 56 31.801 +04 44 21.26 21.9G 12UY174 F51 C~8MSZ 2010 10 14.349824 23 54 51.670 +04 36 01.65 21.6G 12UY174 F51 C~8MSZ 2010 10 14.361607 23 54 51.431 +04 36 00.44 21.8G 12UY174 F51 C~8MSZ 2010 12 31.217517 23 52 46.142 +04 26 45.33 21.6G 12UY174 F51 C~8MSZ 2010 12 31.223662 23 52 46.259 +04 26 45.95 22.2G 12UY174 F51 C~8MSZ 2010 12 31.230370 23 52 46.365 +04 26 46.83 22.0G 12UY174 F51 C~8MSZ 2010 12 31.236469 23 52 46.472 +04 26 47.40 22.4G 12UY174 F51 C~8MSZ 2011 01 01.224861 23 53 04.190 +04 28 36.99 21.8G 12UY174 F51 C~8MSZ 2011 01 01.231014 23 53 04.309 +04 28 37.64 22.1G 12UY174 F51 C~8MSZ 2011 10 21.26764 01 13 42.85 +16 49 35.4 21.2V 12UY174 G96 C~8MSZ 2011 10 21.27581 01 13 42.63 +16 49 35.3 21.5V 12UY174 G96 C~8MSZ 2011 10 21.28402 01 13 42.49 +16 49 34.2 21.6V 12UY174 G96 C~8MSZ 2011 10 21.29218 01 13 42.27 +16 49 32.6 22.2V 12UY174 G96 C~8MSZ 2011 11 12.444059 01 06 28.773 +16 08 31.36 21.8G 12UY174 F51 C~8MSZ 2011 11 12.457333 01 06 28.577 +16 08 30.09 21.6G 12UY174 F51 C~8MSZ 2012 01 21.213251 01 06 24.246 +15 27 18.97 21.5G 12UY174 F51 C~8MSZ 2012 10 23.494518 02 27 13.061 +25 34 49.90 22.3w 12UY174 F51 c~0knY 2012 10 23.509643 02 27 12.730 +25 34 48.59 21.9w 12UY174 F51 c~0knY 2012 10 23.539961 02 27 12.045 +25 34 46.47 21.9w 12UY174 F51 c~0knY 2012 10 24.542395 02 26 49.759 +25 33 35.62 22.4G 12UY174 F51 C~8MSZ 2012 10 25.44441 02 26 29.64 +25 32 30.1 21.3R 12UY174 291 C~0knY 2012 10 25.45507 02 26 29.40 +25 32 29.1 21.4R 12UY174 291 C~0knY 2012 10 25.46573 02 26 29.10 +25 32 27.9 12UY174 291 C~0knY 2012 11 05.44896 02 22 22.89 +25 17 02.4 12UY174 F51 C~7ufB 2012 11 05.46115 02 22 22.64 +25 17 01.3 21.9i 12UY174 F51 C~7ufB 2013 12 03.285485 03 20 44.318 +30 18 12.24 22.6G 12UY174 F51 C~8MSZ 2013 12 03.299616 03 20 44.008 +30 18 10.97 22.7G 12UY174 F51 C~8MSZ 2013 12 03.313737 03 20 43.670 +30 18 09.58 22.0G 12UY174 F51 C~8MSZ 2013 12 03.327880 03 20 43.426 +30 18 08.43 22.3G 12UY174 F51 C~8MSZ 2014 11 27.350198 04 25 15.355 +33 33 17.24 22.6G 12UY174 F51 C~8MSZ 2015 01 23.336961 04 08 59.668 +32 25 04.62 22.8G 12UY174 F51 C~8MSZ 2015 01 23.349522 04 08 59.609 +32 25 03.78 22.8G 12UY174 F51 C~8MSZ 2015 01 23.362073 04 08 59.481 +32 25 02.92 22.7G 12UY174 F51 C~8MSZ
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 -0.21 0.00 0.21
2 0.0000 0.00 0.15 0.00 0.03
3 0.0354 0.00 -0.49 0.00 0.22
4 0.0354 0.00 0.05 0.00 -0.36
5 0.0354 0.00 -0.46 0.00 -0.34
6 0.0354 0.00 0.09 0.00 -0.11
7 0.0357 0.00 0.12 0.00 -0.02
8 0.0547 0.00 0.04 0.00 0.22
9 0.0547 0.00 0.35 0.00 0.10
10 0.7672 0.00 0.10 0.00 -0.23
11 0.7673 0.00 -0.19 0.00 -0.03
12 0.7700 0.00 -0.05 0.00 -0.09
13 0.7781 0.00 -0.31 0.00 0.30
14 0.7782 0.00 -0.12 0.00 -0.11
15 0.7864 0.00 0.32 0.00 0.51
16 0.7864 0.00 -0.73 0.00 0.19
17 1.0134 0.00 0.08 0.00 -0.01
18 1.0134 0.00 0.05 0.00 0.02
19 1.0135 0.00 0.09 0.00 0.02
20 1.0189 0.00 0.07 0.00 0.05
21 1.0190 0.00 0.20 0.00 0.05
22 1.0190 0.00 -0.06 0.00 -0.12
23 1.0190 0.00 -0.03 0.00 -0.09
24 1.0215 0.00 0.03 0.00 -0.00
25 1.0215 0.00 -0.00 0.00 -0.15
26 1.0216 0.00 0.03 0.00 -0.08
27 1.0216 0.00 0.14 0.00 -0.21
28 1.0679 0.00 0.02 0.00 0.03
29 1.0680 0.00 0.09 0.00 0.09
30 1.0680 0.00 0.17 0.00 0.02
31 1.0680 0.00 0.06 0.00 -0.13
32 1.0841 0.00 0.01 0.00 -0.01
33 1.0841 0.00 0.18 0.00 -0.08
34 1.0841 0.00 0.04 0.00 -0.05
35 1.0979 0.00 0.13 0.00 -0.04
36 1.0980 0.00 0.03 0.00 -0.11
37 1.3111 0.00 0.04 0.00 0.05
38 1.3112 0.00 0.21 0.00 -0.00
39 1.3112 0.00 0.06 0.00 0.15
40 1.3112 0.00 0.08 0.00 0.05
41 1.3139 0.00 0.04 0.00 -0.02
42 1.3139 0.00 0.19 0.00 -0.06
43 2.1162 0.00 -0.09 0.00 -0.13
44 2.1162 0.00 -0.66 0.00 0.63
45 2.1162 0.00 -0.02 0.00 0.41
46 2.1163 0.00 -0.60 0.00 -0.32
47 2.1769 0.00 -0.38 0.00 -0.44
48 2.1770 0.00 0.03 0.00 -0.25
49 2.3679 0.00 0.21 0.00 -0.02
50 3.1244 0.00 0.08 0.00 0.27
51 3.1244 0.00 0.26 0.00 0.02
52 3.1245 0.00 0.28 0.00 0.05
53 3.1272 0.00 0.24 0.00 -0.05
54 3.1297 0.00 0.25 0.00 0.23
55 3.1297 0.00 0.27 0.00 0.04
56 3.1297 0.00 -0.61 0.00 -0.35
57 3.1598 0.00 -0.21 0.00 0.06
58 3.1599 0.00 0.20 0.00 0.11
59 4.2353 0.00 0.11 0.00 0.03
60 4.2354 0.00 -0.06 0.00 0.03
61 4.2354 0.00 -0.66 0.00 -0.10
62 4.2355 0.00 0.17 0.00 0.03
63 5.2184 0.00 0.29 0.00 -0.07
64 5.3744 0.00 -0.15 0.00 -0.21
65 5.3745 0.00 0.30 0.00 -0.04
66 5.3745 0.00 -0.28 0.00 0.11
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
12UY174 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 10.070 10.070 10.070 ecceobj 0.353 0.353 0.353 incobj 10.591 10.591 10.591 qmin 6.348 6.516 5.745 qmax 14.285 13.624 14.316 amean 10.144 9.971 9.557 amin 10.036 9.871 8.603 amax 10.321 10.070 10.414 emean 0.356 0.331 0.342 emin 0.333 0.310 0.308 emax 0.384 0.353 0.375 imean 11.565 11.370 13.236 imin 10.808 10.808 10.808 imax 13.154 11.830 17.288 excite_mean 0.409 0.385 0.413 fracstop 0.001 0.001 0.001 cjmean 4.030 4.082 4.195 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 163.7 178.1 174.5 kozaiamp 166.8 166.9 167.0