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: 148112
# Created Wed Dec 25 02:06:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 15.13y
# First observation: 1999/09/08
# Last observation: 2014/10/27
# Chi-squared of fit: 71.62 DOF: 66 RMS: 0.25
# Min/Max residuals: -1.03 0.55
# Exact a, adot, b, bdot, g, gdot:
1.450433E-05 2.263262E-02 -1.083212E-06 -2.952092E-04 2.358651E-02 9.365745E-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
0.268401 -7.135313 0.134501 0.004416 -0.991562 2451429.943013
# Heliocentric elements and errors
Epoch: 2451430.5000 = 1999/09/09
Mean Anomaly: 59.18802 +/- 0.000
Argument of Peri: 97.17757 +/- 0.000
Long of Asc Node: 192.14866 +/- 0.000
Inclination: 0.78704 +/- 0.000
Eccentricity: 0.04136207 +/- 0.0000
Semi-Major Axis: 44.27674733 +/- 0.0000
Time of Perihelion: 2433737.8327 +/- 0.0
Perihelion: 42.44536950 +/- 0.0000
Aphelion: 46.10812516 +/- 0.0000
Period (y) 294.6265 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 43.04326670 +/- 0.0000
Ecliptic Y -5.52034483 +/- 0.0000
Ecliptic Z 0.19857502 +/- 0.0000
Ecliptic XDOT 0.00043026 +/- 0.0000
Ecliptic YDOT 0.00260157 +/- 0.0000
Ecliptic ZDOT -0.00003369 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.39624892 +/- 0.0000
Geocenter to KBO 42.39713179 +/- 0.0000
# Hcoef: 7.08
The following table shows the complete astrometric record for 148112. 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 (148112) followed by the observatory code and reference code for the source of the astrometry.
1999 09 08.44227 23 33 22.07 -02 35 07.9 22.9R 148112 568 Cb0837 1999 09 08.48416 23 33 21.89 -02 35 08.9 23.1R 148112 568 Cb0837 1999 09 08.52675 23 33 21.71 -02 35 10.2 22.9R 148112 568 Cb0837 1999 09 10.40095 23 33 13.70 -02 36 02.1 23.3R 148112 568 Cb0837 1999 09 10.41255 23 33 13.63 -02 36 02.4 23.1R 148112 568 Cb0837 1999 10 09.37450 23 31 12.16 -02 49 12.0 23.1R 148112 568 Cb0837 1999 10 09.39354 23 31 12.11 -02 49 12.7 23.1R 148112 568 Cb0837 1999 10 09.43417 23 31 11.94 -02 49 13.7 23.1R 148112 568 Cb0837 1999 11 09.28275 23 29 36.38 -02 59 41.9 23.1R 148112 568 Cb0837 1999 11 09.33174 23 29 36.26 -02 59 42.3 23.1R 148112 568 Cb0837 2000 08 28.44319 23 38 52.70 -02 00 38.6 23.3R 148112 568 Cb9109 2000 08 28.46939 23 38 52.64 -02 00 39.1 23.4R 148112 568 Cb9109 2000 08 29.47843 23 38 48.59 -02 01 05.5 23.4R 148112 568 Cb9109 2000 08 29.49043 23 38 48.53 -02 01 05.9 23.3R 148112 568 Cb9109 2000 08 29.51274 23 38 48.42 -02 01 06.4 23.2R 148112 568 Cb9109 2001 07 20.49111 23 45 39.569 -01 17 51.61 148112 568 Cl5166 2001 07 21.50459 23 45 37.663 -01 18 04.34 148112 568 Cl5166 2002 09 05.306141 23 47 55.21 -01 04 17.4 148112 645 C~1hM7 2002 09 05.306971 23 47 55.21 -01 04 17.4 148112 645 C~1hM7 2002 09 05.309459 23 47 55.20 -01 04 17.5 148112 645 C~1hM7 2003 11 20.132002 23 48 10.30 -01 04 08.8 148112 645 C~1hM7 2003 11 20.132836 23 48 10.30 -01 04 08.8 148112 645 C~1hM7 2003 11 20.135324 23 48 10.30 -01 04 08.8 148112 645 C~1hM7 2004 09 22.269606 23 56 10.38 -00 12 57.0 148112 645 C~1hM7 2004 09 22.270440 23 56 10.38 -00 12 57.0 148112 645 C~1hM7 2004 09 22.272917 23 56 10.37 -00 12 57.1 148112 645 C~1hM7 2008 10 03.230410 00 14 17.41 +01 40 11.3 22.7V 148112 645 C~1hM7 2008 10 03.231239 00 14 17.41 +01 40 11.3 22.8V 148112 645 C~1hM7 2008 10 03.233727 00 14 17.39 +01 40 11.1 23.8V 148112 645 C~1hM7 2013 10 05.33128 00 37 43.24 +04 05 25.4 23.2R 148112 695 C~0zvy 2013 10 05.37339 00 37 43.05 +04 05 24.3 148112 695 C~0zvy 2013 10 06.37131 00 37 38.75 +04 04 56.6 148112 695 C~0zvy 2014 10 21.215081 00 41 18.42 +04 27 05.6 148112 W84 C~3fvh 2014 10 21.216458 00 41 18.41 +04 27 05.7 148112 W84 C~3fvh 2014 10 27.206863 00 40 54.33 +04 24 31.2 148112 W84 C~3fvh 2014 10 27.208241 00 40 54.33 +04 24 31.6 148112 W84 C~3fvh
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 0.22
2 0.0001 0.00 0.09 0.00 0.38
3 0.0002 0.00 0.17 0.00 0.26
4 0.0054 0.00 0.25 0.00 0.33
5 0.0054 0.00 -0.04 0.00 0.35
6 0.0847 0.00 -0.28 0.00 0.13
7 0.0847 0.00 0.10 0.00 -0.09
8 0.0849 0.00 -0.04 0.00 -0.06
9 0.1693 0.00 0.15 0.00 0.12
10 0.1694 0.00 -0.04 0.00 0.42
11 0.9719 0.00 -1.03 0.00 -0.24
12 0.9720 0.00 -0.32 0.00 -0.06
13 0.9748 0.00 0.20 0.00 0.01
14 0.9748 0.00 0.05 0.00 -0.07
15 0.9749 0.00 -0.21 0.00 0.01
16 1.8646 0.00 0.22 0.00 0.12
17 1.8674 0.00 0.51 0.00 -0.26
18 2.9921 0.00 -0.14 0.00 -0.34
19 2.9921 0.00 -0.08 0.00 -0.32
20 2.9921 0.00 -0.08 0.00 -0.35
21 4.1990 0.00 -0.12 0.00 -0.16
22 4.1990 0.00 -0.10 0.00 -0.15
23 4.1990 0.00 -0.03 0.00 -0.12
24 5.0399 0.00 -0.05 0.00 -0.15
25 5.0399 0.00 0.00 0.00 -0.13
26 5.0399 0.00 0.01 0.00 -0.16
27 9.0699 0.00 0.50 0.00 -0.20
28 9.0699 0.00 0.55 0.00 -0.18
29 9.0699 0.00 0.42 0.00 -0.31
30 14.0750 0.00 -0.06 0.00 0.13
31 14.0751 0.00 -0.14 0.00 0.19
32 14.0778 0.00 -0.20 0.00 0.10
33 15.1178 0.00 0.02 0.00 0.07
34 15.1178 0.00 -0.05 0.00 0.21
35 15.1342 0.00 -0.20 0.00 -0.09
36 15.1342 0.00 -0.12 0.00 0.35
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.
148112 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.238 44.238 44.238 ecceobj 0.041 0.041 0.041 incobj 0.787 0.787 0.787 qmin 41.589 41.585 41.597 qmax 46.578 46.607 46.557 amean 43.996 43.996 43.996 amin 43.655 43.655 43.651 amax 44.346 44.347 44.355 emean 0.035 0.035 0.035 emin 0.019 0.019 0.019 emax 0.051 0.051 0.051 imean 2.197 2.197 2.197 imin 1.534 1.534 1.533 imax 2.786 2.786 2.786 excite_mean 0.052 0.052 0.052 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 172.1 172.1 172.1 kozaiamp 180.0 180.0 180.0