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: 13SV112
# Created Sat Apr 20 01:15:12 2024
# Orbit generated from Bernstein formalism
# Fitting 19 observations of 19
# Arc: 4.96y
# First observation: 2013/09/30
# Last observation: 2018/09/14
Preliminary a, adot, b, bdot, g, gdot:
0.000287 0.025357 0.000041 -0.016082 0.028137 0.000000
# Chi-squared of fit: 6.62 DOF: 32 RMS: 0.10
# Min/Max residuals: -0.26 0.30
# Exact a, adot, b, bdot, g, gdot:
1.495202E-05 2.552032E-02 -9.717723E-06 -1.614427E-02 2.745571E-02 1.551034E-03
# Covariance matrix:
2.7213E-13 9.9226E-15 8.6873E-15 -4.7438E-14 3.6466E-13 6.4359E-13
9.9226E-15 2.6367E-13 2.5817E-14 -1.6703E-13 2.5160E-13 2.2920E-12
8.6873E-15 2.5817E-14 1.5202E-13 -5.3792E-14 3.7249E-14 2.4818E-13
-4.7438E-14 -1.6703E-13 -5.3792E-14 1.3376E-13 -2.1665E-13 -1.5890E-12
3.6466E-13 2.5160E-13 3.7249E-14 -2.1665E-13 1.1406E-12 2.9524E-12
6.4359E-13 2.2920E-12 2.4818E-13 -1.5890E-12 2.9524E-12 2.1790E-11
# lat0 lon0 xBary yBary zBary JD0
1.804133 -1.982296 -0.152818 0.031263 -0.989423 2456565.631898
# Heliocentric elements and errors
Epoch: 2456560.5000 = 2013/09/25
Mean Anomaly: 16.54131 +/- 0.046
Argument of Peri: 153.86312 +/- 0.065
Long of Asc Node: 181.02701 +/- 0.000
Inclination: 32.38233 +/- 0.000
Eccentricity: 0.15720212 +/- 0.0001
Semi-Major Axis: 43.91619929 +/- 0.0073
Time of Perihelion: 2451676.1919 +/- 13.4
Perihelion: 37.01247971 +/- 0.0079
Aphelion: 50.81991886 +/- 0.0098
Period (y) 291.0351 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.37667662 +/- 0.0014
Ecliptic Y -1.13777392 +/- 0.0001
Ecliptic Z 1.14630668 +/- 0.0000
Ecliptic XDOT 0.00028701 +/- 0.0000
Ecliptic YDOT 0.00253490 +/- 0.0000
Ecliptic ZDOT -0.00160408 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.41155575 +/- 0.0014
Geocenter to KBO 36.42229191 +/- 0.0014
# Hcoef: 7.70
The following table shows the complete astrometric record for 13SV112. 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 (13SV112) followed by the observatory code and reference code for the source of the astrometry.
2013 09 30.13112 23 49 51.336 +00 52 01.40 23.4r 13SV112 W84 C~52RV 2013 09 30.13557 23 49 51.322 +00 52 01.16 23.1i 13SV112 W84 C~52RV 2013 10 12.09918 23 48 56.576 +00 43 55.98 22.7i 13SV112 W84 C~52RV 2013 10 13.08002 23 48 52.297 +00 43 17.03 23.4i 13SV112 W84 C~52RV 2013 10 26.02672 23 48 00.225 +00 35 10.34 24.1g 13SV112 W84 C~52RV 2013 10 28.04236 23 47 52.954 +00 33 59.10 23.2r 13SV112 W84 C~52RV 2013 10 28.04375 23 47 52.943 +00 33 59.06 23.1i 13SV112 W84 C~52RV 2013 11 08.12633 23 47 18.081 +00 27 59.34 23.7r 13SV112 W84 C~52RV 2013 11 08.12773 23 47 18.062 +00 27 59.22 22.9z 13SV112 W84 C~52RV 2013 11 22.05648 23 46 48.433 +00 21 54.38 24.7g 13SV112 W84 C~52RV 2016 09 11.19965 00 11 42.716 +00 16 29.78 23.0i 13SV112 W84 C~52RV 2016 12 04.09291 00 06 37.177 -00 29 04.56 23.8i 13SV112 W84 C~52RV 2017 09 27.24786 00 17 11.989 -00 10 16.51 23.3i 13SV112 W84 C~52RV 2017 09 27.24923 00 17 11.970 -00 10 16.59 23.2r 13SV112 W84 C~52RV 2017 10 27.16717 00 14 56.164 -00 29 21.16 22.7z 13SV112 W84 C~52RV 2017 11 09.05875 00 14 09.434 -00 36 01.90 23.4r 13SV112 W84 C~52RV 2018 09 09.21996 00 25 19.875 -00 13 49.13 24.7g 13SV112 W84 C~52RV 2018 09 14.32064 00 24 56.898 -00 17 13.90 22.7i 13SV112 W84 C~52RV 2018 09 14.32202 00 24 56.893 -00 17 13.91 22.7r 13SV112 W84 C~52RV
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 -0.05 0.00 0.09
2 0.0000 -0.29 0.03 -0.14 -0.01
3 0.0328 -946.62 0.06 -118.83 0.05
4 0.0355 -1021.00 -0.10 -129.05 -0.12
5 0.0709 -1931.20 0.30 -265.03 0.18
6 0.0764 -2059.61 0.05 -287.03 -0.03
7 0.0764 -2059.78 -0.03 -287.00 0.01
8 0.1068 -2682.70 -0.03 -409.10 -0.03
9 0.1068 -2683.01 -0.26 -409.10 -0.01
10 0.1449 -3235.99 0.04 -567.12 -0.14
11 2.9489 17259.09 0.06 -9796.71 0.06
12 3.1785 11935.14 -0.07 -10480.74 -0.04
13 3.9921 21204.44 0.01 -13266.95 0.03
14 3.9921 21204.14 -0.17 -13266.91 0.08
15 4.0740 18854.03 0.17 -13503.28 0.01
16 4.1093 18043.71 0.01 -13590.94 -0.10
17 4.9421 27962.70 -0.10 -16433.26 -0.18
18 4.9560 27556.91 0.03 -16483.09 0.07
19 4.9560 27556.83 0.07 -16483.06 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.
13SV112 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 44.138 44.160 44.115 ecceobj 0.162 0.162 0.162 incobj 32.302 32.302 32.302 qmin 35.812 35.817 35.766 qmax 52.484 52.465 52.491 amean 43.958 43.980 43.935 amin 43.605 43.619 43.563 amax 44.377 44.387 44.349 emean 0.164 0.164 0.164 emin 0.146 0.145 0.145 emax 0.183 0.183 0.184 imean 31.977 31.976 31.970 imin 31.553 31.559 31.547 imax 32.332 32.330 32.347 excite_mean 0.554 0.554 0.554 fracstop 1.000 1.000 1.000 cjmean 2.707 2.707 2.707 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 181.9 181.8 182.4 kozaiamp 179.9 180.0 180.0