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: 13GO137
# Created Sun Dec 22 02:09:26 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 8.32y
# First observation: 2013/02/08
# Last observation: 2021/06/07
# Chi-squared of fit: 24.98 DOF: 66 RMS: 0.15
# Min/Max residuals: -0.49 0.40
# Exact a, adot, b, bdot, g, gdot:
1.507623E-05 1.944248E-02 -8.628655E-06 -1.086053E-02 2.357266E-02 -1.479382E-03
# Covariance matrix:
1.8929E-13 -6.5381E-14 -3.1275E-14 4.3847E-14 1.0637E-13 -4.6617E-13
-6.5381E-14 9.3499E-14 3.9811E-14 -5.8724E-14 1.4775E-14 6.3327E-13
-3.1275E-14 3.9811E-14 7.8531E-14 -4.3748E-14 -6.8101E-16 3.1207E-13
4.3847E-14 -5.8724E-14 -4.3748E-14 5.3928E-14 -1.6534E-15 -4.5858E-13
1.0637E-13 1.4775E-14 -6.8101E-16 -1.6534E-15 1.3691E-13 2.5581E-14
-4.6617E-13 6.3327E-13 3.1207E-13 -4.5858E-13 2.5581E-14 4.9402E-12
# lat0 lon0 xBary yBary zBary JD0
1.921503 -146.743504 0.944420 0.009530 -0.282467 2456332.057178
# Heliocentric elements and errors
Epoch: 2456332.5000 = 2013/02/09
Mean Anomaly: 253.27821 +/- 0.034
Argument of Peri: 292.33970 +/- 0.027
Long of Asc Node: 35.39151 +/- 0.000
Inclination: 29.29477 +/- 0.000
Eccentricity: 0.08994782 +/- 0.0001
Semi-Major Axis: 41.34853541 +/- 0.0025
Time of Perihelion: 2485122.3392 +/- 11.0
Perihelion: 37.62932478 +/- 0.0047
Aphelion: 45.06774605 +/- 0.0049
Period (y) 265.8878 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.20722786 +/- 0.0006
Ecliptic Y -22.61393449 +/- 0.0004
Ecliptic Z 1.42204918 +/- 0.0000
Ecliptic XDOT 0.00134037 +/- 0.0000
Ecliptic YDOT -0.00181639 +/- 0.0000
Ecliptic ZDOT -0.00126632 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.71276305 +/- 0.0005
Geocenter to KBO 42.42208335 +/- 0.0007
# Hcoef: 7.20
The following table shows the complete astrometric record for 13GO137. 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 (13GO137) followed by the observatory code and reference code for the source of the astrometry.
2013 02 08.55640 14 06 48.224 -10 47 32.46 23.6r 13GO137 568 C~1XRY 2013 02 08.60359 14 06 48.226 -10 47 32.57 23.0r 13GO137 568 C~1XRY 2013 04 04.41383 14 04 04.513 -10 37 07.53 23.4r 13GO137 568 C~1XRY 2013 04 04.45396 14 04 04.332 -10 37 06.84 23.4r 13GO137 568 C~1XRY 2013 04 04.49439 14 04 04.141 -10 37 06.03 23.6r 13GO137 568 C~1XRY 2013 04 05.53143 14 03 59.427 -10 36 46.59 22.9r 13GO137 568 C~1XRY 2013 04 05.53531 14 03 59.405 -10 36 46.52 23.5r 13GO137 568 C~1XRY 2013 04 06.58684 14 03 54.555 -10 36 26.64 23.7r 13GO137 568 C~1XRY 2013 04 08.38751 14 03 46.244 -10 35 52.72 23.6r 13GO137 568 C~1XRY 2013 05 11.41804 14 01 09.381 -10 25 30.97 23.6r 13GO137 568 C~1XRY 2013 05 12.41931 14 01 04.841 -10 25 14.02 23.6r 13GO137 568 C~1XRY 2013 06 13.25755 13 59 04.294 -10 18 40.68 23.7r 13GO137 568 C~1XRY 2013 06 13.29820 13 59 04.170 -10 18 40.33 23.8r 13GO137 568 C~1XRY 2013 07 04.27893 13 58 21.320 -10 17 52.83 23.6r 13GO137 568 C~1XRY 2013 07 06.28622 13 58 19.093 -10 17 58.68 23.7r 13GO137 568 C~1XRY 2014 02 25.51607 14 09 47.968 -11 44 22.76 23.5r 13GO137 568 C~1XRY 2014 02 25.55969 14 09 47.866 -11 44 22.43 23.6r 13GO137 568 C~1XRY 2014 02 25.60433 14 09 47.754 -11 44 22.14 23.6r 13GO137 568 C~1XRY 2014 03 26.51083 14 08 12.280 -11 38 32.83 13GO137 568 C~1XRY 2014 03 27.41673 14 08 08.523 -11 38 18.08 23.4r 13GO137 568 C~1XRY 2014 03 28.41797 14 08 04.273 -11 38 01.42 23.4r 13GO137 568 C~1XRY 2014 03 28.45726 14 08 04.104 -11 38 00.83 23.6r 13GO137 568 C~1XRY 2014 04 05.38215 14 07 29.079 -11 35 42.89 23.1r 13GO137 568 C~1XRY 2014 04 29.33527 14 05 34.725 -11 28 11.44 23.1r 13GO137 568 C~1XRY 2014 04 29.41097 14 05 34.349 -11 28 09.88 23.6r 13GO137 568 C~1XRY 2014 04 29.41601 14 05 34.328 -11 28 09.86 23.4r 13GO137 568 C~1XRY 2014 05 22.40174 14 03 48.898 -11 21 33.13 23.5r 13GO137 568 C~1XRY 2014 05 22.40562 14 03 48.880 -11 21 33.12 23.4r 13GO137 568 C~1XRY 2014 05 28.37385 14 03 24.587 -11 20 08.51 23.5r 13GO137 568 C~1XRY 2014 05 28.37773 14 03 24.564 -11 20 08.39 23.6r 13GO137 568 C~1XRY 2015 01 26.65311 14 13 42.486 -12 41 58.53 23.7r 13GO137 568 C~1XRY 2015 04 27.34173 14 09 15.795 -12 27 57.62 23.2r 13GO137 568 C~2KOG 2015 04 27.35111 14 09 15.732 -12 27 57.99 24.6u 13GO137 568 C~2KOG 2015 04 27.40797 14 09 15.466 -12 27 56.35 23.3r 13GO137 568 C~2KOG 2021 06 06.97024 14 28 02.55 -18 11 43.00 13GO137 W84 C~7xNS 2021 06 07.12201 14 28 01.95 -18 11 40.60 13GO137 W84 C~7xNS
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 -0.31 0.00 0.40
2 0.0001 0.00 0.39 0.00 0.25
3 0.1502 0.00 0.03 0.00 -0.04
4 0.1503 0.00 0.09 0.00 -0.10
5 0.1504 0.00 0.03 0.00 -0.04
6 0.1533 0.00 0.27 0.00 0.04
7 0.1533 0.00 0.21 0.00 0.03
8 0.1561 0.00 -0.11 0.00 0.15
9 0.1611 0.00 -0.02 0.00 -0.03
10 0.2515 0.00 0.15 0.00 0.03
11 0.2542 0.00 0.17 0.00 0.01
12 0.3414 0.00 0.02 0.00 -0.04
13 0.3415 0.00 -0.05 0.00 0.04
14 0.3990 0.00 0.01 0.00 -0.14
15 0.4045 0.00 0.10 0.00 -0.12
16 1.0457 0.00 0.11 0.00 -0.11
17 1.0459 0.00 0.10 0.00 -0.08
18 1.0460 0.00 -0.01 0.00 -0.10
19 1.1251 0.00 -0.45 0.00 0.03
20 1.1276 0.00 0.05 0.00 -0.05
21 1.1304 0.00 -0.07 0.00 0.01
22 1.1305 0.00 -0.05 0.00 -0.05
23 1.1522 0.00 -0.18 0.00 -0.05
24 1.2177 0.00 -0.02 0.00 -0.06
25 1.2179 0.00 -0.08 0.00 0.08
26 1.2180 0.00 -0.02 0.00 0.01
27 1.2809 0.00 0.01 0.00 0.07
28 1.2809 0.00 -0.01 0.00 0.02
29 1.2972 0.00 -0.14 0.00 -0.05
30 1.2973 0.00 -0.25 0.00 0.02
31 1.9633 0.00 0.16 0.00 0.07
32 2.2116 0.00 0.01 0.00 0.06
33 2.2116 0.00 -0.24 0.00 -0.49
34 2.2118 0.00 0.00 0.00 0.09
35 8.3242 0.00 0.02 0.00 0.00
36 8.3246 0.00 0.13 0.00 0.13
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.
13GO137 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.231 41.231 41.231 ecceobj 0.093 0.093 0.093 incobj 29.344 29.344 29.344 qmin 37.105 37.137 37.154 qmax 46.041 46.091 46.100 amean 41.483 41.484 41.483 amin 41.174 41.168 41.176 amax 41.822 41.833 41.824 emean 0.088 0.088 0.088 emin 0.076 0.076 0.076 emax 0.102 0.102 0.102 imean 28.624 28.622 28.624 imin 28.247 28.248 28.256 imax 28.924 28.919 28.922 excite_mean 0.487 0.487 0.487 fracstop 1.000 1.000 1.000 cjmean 2.778 2.778 2.778 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 182.2 181.7 181.5 kozaiamp 180.0 179.9 180.0