Orbit Fit and Astrometric record for 148112

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 Fri Dec 15 02:36:35 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   32 observations of   32
# Arc:  14.08y
# First observation: 1999/09/08
#  Last observation: 2013/10/06
# Chi-squared of fit:    88.09 DOF:   58 RMS:  0.29
# Min/Max residuals:    -1.15    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.452103E-05  2.263260E-02 -9.626608E-07 -2.952693E-04  2.358648E-02  9.364313E-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    0.134500    0.004416   -0.991562  2451429.943013
# Heliocentric elements and errors
Epoch:              2451430.5000  =  1999/09/09
Mean Anomaly:           59.18369 +/-     0.000
Argument of Peri:       97.18587 +/-     0.000
Long of Asc Node:      192.14541 +/-     0.000
Inclination:             0.78719 +/-     0.000
Eccentricity:         0.04135682 +/-    0.0000
Semi-Major Axis:     44.27681451 +/-    0.0000
Time of Perihelion: 2433739.0883 +/-       0.0
Perihelion:          42.44566616 +/-    0.0000
Aphelion:            46.10796286 +/-    0.0000
Period (y)              294.6271 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.04331244 +/-    0.0000
Ecliptic Y           -5.52034984 +/-    0.0000
Ecliptic Z            0.19858035 +/-    0.0000
Ecliptic XDOT         0.00043024 +/-    0.0000
Ecliptic YDOT         0.00260157 +/-    0.0000
Ecliptic ZDOT        -0.00003370 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.39629495 +/-    0.0000
Geocenter to KBO     42.39717783 +/-    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      

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    -0.18       0.00    -1.15
  2   0.0001      0.00     0.14       0.00     0.38
  3   0.0002      0.00     0.22       0.00     0.25
  4   0.0054      0.00     0.30       0.00     0.33
  5   0.0054      0.00     0.01       0.00     0.35
  6   0.0847      0.00    -0.23       0.00     0.13
  7   0.0847      0.00     0.15       0.00    -0.09
  8   0.0849      0.00     0.01       0.00    -0.06
  9   0.1693      0.00     0.17       0.00     0.11
 10   0.1694      0.00    -0.01       0.00     0.40
 11   0.9719      0.00    -0.98       0.00    -0.23
 12   0.9720      0.00    -0.26       0.00    -0.05
 13   0.9748      0.00     0.26       0.00     0.02
 14   0.9748      0.00     0.10       0.00    -0.06
 15   0.9749      0.00    -0.16       0.00     0.02
 16   1.8646      0.00     0.25       0.00     0.13
 17   1.8674      0.00     0.54       0.00    -0.25
 18   2.9921      0.00    -0.09       0.00    -0.30
 19   2.9921      0.00    -0.03       0.00    -0.28
 20   2.9921      0.00    -0.03       0.00    -0.31
 21   4.1990      0.00    -0.10       0.00    -0.12
 22   4.1990      0.00    -0.08       0.00    -0.11
 23   4.1990      0.00    -0.02       0.00    -0.08
 24   5.0399      0.00    -0.01       0.00    -0.09
 25   5.0399      0.00     0.04       0.00    -0.07
 26   5.0399      0.00     0.05       0.00    -0.10
 27   9.0699      0.00     0.51       0.00    -0.10
 28   9.0699      0.00     0.56       0.00    -0.08
 29   9.0699      0.00     0.42       0.00    -0.21
 30  14.0750      0.00    -0.11       0.00     0.26
 31  14.0751      0.00    -0.20       0.00     0.33
 32  14.0778      0.00    -0.25       0.00     0.24

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           41.588    41.587    41.590
qmax           46.606    46.582    46.594
amean          43.996    43.996    43.996
amin           43.654    43.657    43.650
amax           44.348    44.347    44.347
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     1.534
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     179.9     179.9