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: 612174 # Created Wed Dec 25 02:07:38 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 40 observations of 40 # Arc: 18.14y # First observation: 2000/08/29 # Last observation: 2018/10/18 # Chi-squared of fit: 59.92 DOF: 74 RMS: 0.22 # Min/Max residuals: -0.59 0.61 # Exact a, adot, b, bdot, g, gdot: 1.459770E-05 2.408374E-02 1.536123E-06 -5.887757E-04 2.432869E-02 6.586457E-04 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -2.315716 -22.086996 0.038879 -0.040810 -1.005010 2451785.599403 # Heliocentric elements and errors Epoch: 2451786.5000 = 2000/08/30 Mean Anomaly: 24.40098 +/- 0.000 Argument of Peri: 211.02121 +/- 0.000 Long of Asc Node: 99.77729 +/- 0.000 Inclination: 2.66192 +/- 0.000 Eccentricity: 0.05359963 +/- 0.0000 Semi-Major Axis: 44.24887546 +/- 0.0000 Time of Perihelion: 2444499.3700 +/- 0.0 Perihelion: 41.87715215 +/- 0.0000 Aphelion: 46.62059877 +/- 0.0000 Period (y) 294.3483 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.97941831 +/- 0.0000 Ecliptic Y -15.85229408 +/- 0.0000 Ecliptic Z -1.66077652 +/- 0.0000 Ecliptic XDOT 0.00107795 +/- 0.0000 Ecliptic YDOT 0.00248984 +/- 0.0000 Ecliptic ZDOT -0.00006905 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.11231646 +/- 0.0000 Geocenter to KBO 41.10374649 +/- 0.0000 # Hcoef: 6.73
The following table shows the complete astrometric record for 612174. 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 (612174) followed by the observatory code and reference code for the source of the astrometry.
2000 08 29.09866 22 41 49.86 -10 44 59.0 612174 809 Cb8401 2000 08 29.19350 22 41 49.40 -10 45 01.2 612174 809 Cb8401 2000 08 29.29313 22 41 48.98 -10 45 04.1 612174 809 Cb8401 2000 08 29.34946 22 41 48.70 -10 45 05.9 612174 809 Cb8401 2000 08 30.08073 22 41 45.40 -10 45 25.9 22.3R 612174 809 Cb8401 2000 08 30.17392 22 41 44.99 -10 45 28.1 612174 809 Cb8401 2000 08 30.25186 22 41 44.62 -10 45 30.2 612174 809 Cb8401 2000 11 27.10159 22 37 46.66 -11 06 07.3 23.3R 612174 695 Cc3790 2000 11 28.11804 22 37 47.40 -11 05 59.7 22.7R 612174 695 Cc3790 2000 11 29.11569 22 37 48.20 -11 05 51.7 23.1R 612174 695 Cc3790 2001 07 18.50940 22 49 47.689 -09 57 59.43 612174 568 Cl5597 2001 07 19.50863 22 49 44.752 -09 58 20.27 22.6R 612174 568 Cl5597 2003 08 23.16604 22 57 58.63 -09 13 11.4 21.8R 612174 807 Ci3259 2003 08 23.23473 22 57 58.33 -09 13 13.2 612174 807 Ci3259 2003 08 24.25367 22 57 53.91 -09 13 41.5 612174 807 Ci3259 2004 08 14.30151 23 03 42.23 -08 39 28.5 22.0R 612174 807 Cl2558 2004 08 14.40839 23 03 41.78 -08 39 31.7 612174 807 Cl2558 2004 08 15.35259 23 03 37.91 -08 39 56.6 612174 807 Cl2558 2004 09 11.13251 23 01 41.20 -08 52 20.8 22.6R 612174 304 Cl4137 2004 09 11.13514 23 01 41.18 -08 52 20.8 612174 304 Cl4137 2004 09 11.16635 23 01 41.05 -08 52 21.7 612174 304 Cl4137 2004 09 11.16874 23 01 41.03 -08 52 21.8 612174 304 Cl4137 2010 09 16.32138 23 32 00.40 -05 50 17.9 21.9R 612174 688 C~0NFG 2010 09 16.36962 23 32 00.22 -05 50 19.2 612174 688 C~0NFG 2016 09 11.23049 00 02 21.284 -02 39 50.23 22.8i 612174 W84 C~4yCD 2016 09 22.10939 00 01 34.023 -02 45 02.50 23.5g 612174 W84 C~4yCD 2016 09 26.16243 00 01 16.244 -02 46 57.64 22.8i 612174 W84 C~4yCD 2016 09 26.16381 00 01 16.240 -02 46 57.71 23.2r 612174 W84 C~4yCD 2016 09 26.16520 00 01 16.236 -02 46 57.60 24.5g 612174 W84 C~4yCD 2016 10 06.05453 00 00 33.404 -02 51 30.01 22.4z 612174 W84 C~4yCD 2017 09 18.22777 00 06 48.556 -02 11 36.67 22.9r 612174 W84 C~4yCD 2017 09 27.16491 00 06 09.441 -02 15 52.16 22.2z 612174 W84 C~4yCD 2017 10 19.15880 00 04 36.917 -02 25 30.75 23.1i 612174 W84 C~4yCD 2017 10 28.15307 00 04 03.507 -02 28 48.75 22.4z 612174 W84 C~4yCD 2017 10 29.15639 00 04 00.026 -02 29 09.01 22.8z 612174 W84 C~4yCD 2017 11 09.06430 00 03 25.889 -02 32 20.48 23.3r 612174 W84 C~4yCD 2018 09 14.30534 00 12 02.353 -01 38 08.82 23.3r 612174 W84 C~4yCD 2018 09 14.31098 00 12 02.328 -01 38 08.80 22.7i 612174 W84 C~4yCD 2018 09 14.31238 00 12 02.325 -01 38 08.75 24.2g 612174 W84 C~4yCD 2018 10 18.17109 00 09 37.244 -01 53 37.32 22.4z 612174 W84 C~4yCD
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 0.36 0.00 -0.29
2 0.0003 0.00 -0.02 0.00 0.11
3 0.0005 0.00 0.54 0.00 -0.07
4 0.0007 0.00 0.20 0.00 -0.34
5 0.0027 0.00 -0.07 0.00 -0.36
6 0.0029 0.00 0.19 0.00 -0.01
7 0.0032 0.00 0.02 0.00 0.02
8 0.2464 0.00 -0.53 0.00 0.21
9 0.2492 0.00 -0.11 0.00 0.25
10 0.2519 0.00 -0.03 0.00 0.28
11 0.8855 0.00 -0.11 0.00 0.14
12 0.8882 0.00 -0.30 0.00 -0.10
13 2.9817 0.00 -0.02 0.00 0.22
14 2.9819 0.00 0.02 0.00 0.33
15 2.9847 0.00 0.10 0.00 0.33
16 3.9595 0.00 0.15 0.00 -0.17
17 3.9598 0.00 -0.02 0.00 -0.51
18 3.9624 0.00 -0.59 0.00 -0.01
19 4.0357 0.00 -0.02 0.00 0.10
20 4.0357 0.00 -0.14 0.00 0.17
21 4.0358 0.00 0.03 0.00 0.13
22 4.0358 0.00 -0.11 0.00 0.10
23 10.0485 0.00 0.07 0.00 -0.55
24 10.0487 0.00 0.61 0.00 -0.49
25 16.0360 0.00 0.17 0.00 0.04
26 16.0657 0.00 -0.01 0.00 0.07
27 16.0768 0.00 0.01 0.00 0.11
28 16.0768 0.00 0.04 0.00 0.08
29 16.0768 0.00 0.08 0.00 0.23
30 16.1039 0.00 0.07 0.00 0.15
31 17.0544 0.00 0.03 0.00 0.07
32 17.0789 0.00 0.06 0.00 -0.08
33 17.1391 0.00 0.09 0.00 0.02
34 17.1637 0.00 -0.15 0.00 0.02
35 17.1665 0.00 -0.12 0.00 -0.05
36 17.1963 0.00 -0.12 0.00 0.09
37 18.0430 0.00 -0.06 0.00 -0.18
38 18.0430 0.00 -0.07 0.00 0.00
39 18.0430 0.00 -0.03 0.00 0.09
40 18.1357 0.00 -0.08 0.00 -0.10
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.
612174 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.347 44.347 44.347 ecceobj 0.056 0.056 0.056 incobj 2.661 2.661 2.661 qmin 41.215 41.217 41.213 qmax 47.337 47.338 47.337 amean 44.163 44.163 44.163 amin 43.818 43.817 43.820 amax 44.517 44.517 44.523 emean 0.049 0.049 0.049 emin 0.033 0.033 0.033 emax 0.064 0.064 0.064 imean 1.047 1.047 1.047 imin 0.387 0.387 0.387 imax 1.613 1.613 1.613 excite_mean 0.053 0.053 0.053 fracstop 1.000 1.000 1.000 cjmean 3.100 3.100 3.100 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 160.0 159.9 160.1 kozaiamp 180.0 180.0 180.0