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: 10GB174 # Created Mon Apr 28 01:09:11 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 37 observations of 37 # Arc: 5.83y # First observation: 2009/06/26 # Last observation: 2015/04/26 # Chi-squared of fit: 10.09 DOF: 68 RMS: 0.09 # Min/Max residuals: -0.26 0.16 # Exact a, adot, b, bdot, g, gdot: 1.402765E-05 1.296745E-02 3.260811E-06 3.074140E-03 1.486291E-02 7.555572E-03 # Covariance matrix: 2.8560E-13 -1.9185E-13 5.1018E-14 -4.0668E-14 -1.0392E-13 -1.9855E-12 -1.9185E-13 2.1630E-13 -4.2788E-14 5.2102E-14 1.9961E-14 2.4482E-12 5.1018E-14 -4.2788E-14 1.1359E-13 -4.1736E-14 -3.0033E-14 -5.2851E-13 -4.0668E-14 5.2102E-14 -4.1736E-14 2.9674E-14 3.3289E-15 6.3674E-13 -1.0392E-13 1.9961E-14 -3.0033E-14 3.3289E-15 1.3815E-13 2.7197E-13 -1.9855E-12 2.4482E-12 -5.2851E-13 6.3674E-13 2.7197E-13 2.9943E-11 # lat0 lon0 xBary yBary zBary JD0 17.210611 -178.521142 -1.011018 -0.015943 0.051349 2455008.779406 # Heliocentric elements and errors Epoch: 2455008.5000 = 2009/06/26 Mean Anomaly: 3.32439 +/- 0.018 Argument of Peri: 347.07972 +/- 0.013 Long of Asc Node: 130.83369 +/- 0.001 Inclination: 21.59465 +/- 0.000 Eccentricity: 0.85707320 +/- 0.0006 Semi-Major Axis: 339.93670995 +/- 1.2477 Time of Perihelion: 2433868.5142 +/- 164.6 Perihelion: 48.58606654 +/- 0.2605 Aphelion: 631.28735335 +/- 2.3249 Period (y) 6267.6582 +/- 34.51 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -64.16459297 +/- 0.0016 Ecliptic Y -2.67276844 +/- 0.0001 Ecliptic Z 19.90786592 +/- 0.0005 Ecliptic XDOT -0.00109524 +/- 0.0000 Ecliptic YDOT -0.00241345 +/- 0.0000 Ecliptic ZDOT 0.00095264 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 67.23457137 +/- 0.0015 Geocenter to KBO 67.28110013 +/- 0.0017 # Hcoef: 6.26
The following table shows the complete astrometric record for 10GB174. 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 (10GB174) followed by the observatory code and reference code for the source of the astrometry.
2009 06 26.278640 12 33 26.223 +15 10 07.53 10GB174 568 C~0rTd 2009 06 26.326870 12 33 26.224 +15 10 06.73 10GB174 568 C~0rTd 2009 06 26.342950 12 33 26.246 +15 10 06.38 10GB174 568 C~0rTd 2010 02 22.39771 12 40 41.06 +14 45 27.3 24.9z 10GB174 568 C~4U59 2010 02 22.44872 12 40 40.94 +14 45 28.7 10GB174 568 C~4U59 2010 03 12.44062 12 39 56.75 +14 52 46.6 10GB174 568 C~4U59 2010 03 12.57649 12 39 56.39 +14 52 49.6 10GB174 568 C~4U59 2010 03 15.39963 12 39 48.72 +14 53 54.4 10GB174 568 C~4U59 2010 03 15.62253 12 39 48.09 +14 53 59.5 10GB174 568 C~4U59 2010 04 12.348651 12 38 29.365 +15 02 45.54 25.0g 10GB174 568 C~0rTd 2010 04 13.294388 12 38 26.725 +15 02 59.07 25.0g 10GB174 568 C~0rTd 2010 04 13.409538 12 38 26.394 +15 03 00.74 25.0g 10GB174 568 C~0rTd 2010 04 13.466308 12 38 26.244 +15 03 01.51 25.1g 10GB174 568 C~0rTd 2010 05 14.453536 12 37 10.817 +15 07 05.83 24.5i 10GB174 568 C~0rTd 2010 05 17.282017 12 37 05.488 +15 07 07.59 24.8i 10GB174 568 C~0rTd 2010 05 17.320960 12 37 05.416 +15 07 07.53 24.8i 10GB174 568 C~0rTd 2011 05 02.159120 12 40 41.304 +14 57 20.25 10GB174 304 C~0rTd 2011 05 02.202848 12 40 41.187 +14 57 20.61 10GB174 304 C~0rTd 2011 05 03.078481 12 40 39.114 +14 57 26.27 10GB174 304 C~0rTd 2011 05 03.133521 12 40 38.978 +14 57 26.44 10GB174 304 C~0rTd 2011 06 25.26868 12 39 31.96 +14 53 06.7 24.7r 10GB174 568 C~4U59 2011 06 25.27398 12 39 31.96 +14 53 06.6 10GB174 568 C~4U59 2011 06 26.273727 12 39 32.060 +14 52 50.82 10GB174 568 C~0rTd 2011 06 30.25281 12 39 32.92 +14 51 45.2 24.6r 10GB174 568 C~4U59 2011 06 30.27126 12 39 32.94 +14 51 44.7 10GB174 568 C~4U59 2012 02 16.512841 12 46 54.162 +14 24 55.89 10GB174 568 C~0rTd 2012 02 16.519766 12 46 54.156 +14 24 56.26 10GB174 568 C~0rTd 2012 02 16.561832 12 46 54.073 +14 24 57.19 10GB174 568 C~0rTd 2012 03 19.42704 12 45 38.65 +14 37 36.3 10GB174 568 C~4U59 2012 03 19.53912 12 45 38.33 +14 37 38.7 10GB174 568 C~4U59 2012 03 28.41126 12 45 13.53 +14 40 40.6 25.1u 10GB174 568 C~4U59 2012 03 28.46258 12 45 13.38 +14 40 41.8 10GB174 568 C~4U59 2012 03 28.51457 12 45 13.24 +14 40 42.7 10GB174 568 C~4U59 2015 04 26.42287 12 52 39.75 +14 20 30.5 24.8r 10GB174 568 C~4U59 2015 04 26.45608 12 52 39.67 +14 20 30.7 10GB174 568 C~4U59 2015 04 26.48701 12 52 39.58 +14 20 30.9 10GB174 568 C~4U59 2015 04 26.50279 12 52 39.55 +14 20 31.3 10GB174 568 C~4U59
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 -0.04 0.00 0.02
2 0.0001 0.00 -0.18 0.00 0.03
3 0.0002 0.00 0.10 0.00 -0.06
4 0.6601 0.00 0.07 0.00 -0.19
5 0.6603 0.00 -0.04 0.00 -0.07
6 0.7095 0.00 -0.10 0.00 0.02
7 0.7099 0.00 0.08 0.00 -0.12
8 0.7176 0.00 -0.05 0.00 -0.03
9 0.7183 0.00 -0.16 0.00 0.03
10 0.7942 0.00 -0.01 0.00 0.07
11 0.7968 0.00 0.04 0.00 -0.02
12 0.7971 0.00 -0.01 0.00 0.01
13 0.7972 0.00 0.16 0.00 -0.02
14 0.8821 0.00 0.14 0.00 0.13
15 0.8898 0.00 0.14 0.00 0.13
16 0.8899 0.00 0.15 0.00 0.07
17 1.8477 0.00 0.12 0.00 0.05
18 1.8478 0.00 -0.04 0.00 0.11
19 1.8502 0.00 0.03 0.00 -0.07
20 1.8504 0.00 -0.02 0.00 -0.26
21 1.9959 0.00 -0.10 0.00 0.05
22 1.9959 0.00 -0.10 0.00 0.04
23 1.9986 0.00 0.13 0.00 -0.06
24 2.0095 0.00 -0.16 0.00 0.10
25 2.0096 0.00 0.06 0.00 -0.08
26 2.6427 0.00 -0.10 0.00 -0.12
27 2.6427 0.00 0.01 0.00 0.08
28 2.6428 0.00 -0.05 0.00 -0.03
29 2.7300 0.00 0.08 0.00 -0.00
30 2.7304 0.00 -0.01 0.00 -0.02
31 2.7546 0.00 -0.01 0.00 -0.06
32 2.7548 0.00 -0.04 0.00 0.15
33 2.7549 0.00 0.10 0.00 0.05
34 5.8320 0.00 -0.04 0.00 0.08
35 5.8321 0.00 0.06 0.00 -0.04
36 5.8322 0.00 -0.09 0.00 -0.14
37 5.8322 0.00 0.07 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.
10GB174 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 344.243 344.260 344.226 ecceobj 0.859 0.859 0.859 incobj 21.569 21.569 21.569 qmin 45.149 45.149 45.150 qmax 711.687 711.654 711.691 amean 349.255 349.255 349.255 amin 332.250 332.232 332.289 amax 380.138 380.123 380.140 emean 0.861 0.861 0.861 emin 0.851 0.851 0.851 emax 0.872 0.872 0.872 imean 20.091 20.091 20.091 imin 19.398 19.397 19.398 imax 20.837 20.837 20.837 excite_mean 0.927 0.927 0.927 fracstop 1.000 1.000 1.000 cjmean 3.343 3.343 3.343 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 348.8 348.8 348.8 kozaiamp 2.4 2.4 2.4