Orbit Fit and Astrometric record for 07BP102

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: 07BP102   
# Created Tue Oct 24 01:37:41 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   51 observations of   51
# Arc:   9.30y
# First observation: 2007/01/20
#  Last observation: 2016/05/08
# Chi-squared of fit:    47.10 DOF:   96 RMS:  0.17
# Min/Max residuals:    -0.57    0.55
# Exact a, adot, b, bdot, g, gdot:
  2.057463E-05  7.238049E-02 -1.704069E-05 -6.086840E-02  5.685169E-02 -3.086169E-03
# Covariance matrix:
  4.5155E-14  2.3252E-15 -4.1198E-15 -1.3317E-15  3.6777E-14  1.9852E-15
  2.3252E-15  3.8274E-14 -3.3239E-15 -2.6351E-14  5.6863E-14  3.9282E-14
 -4.1198E-15 -3.3239E-15  4.0893E-14 -4.5443E-15 -2.1745E-14 -9.5147E-17
 -1.3317E-15 -2.6351E-14 -4.5443E-15  2.2816E-14 -2.3465E-14 -3.1758E-14
  3.6777E-14  5.6863E-14 -2.1745E-14 -2.3465E-14  2.1180E-13  3.4980E-14
  1.9852E-15  3.9282E-14 -9.5147E-17 -3.1758E-14  3.4980E-14  4.7344E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   59.783248 -179.321962    0.861406    0.415614   -0.241943  2454121.135304
# Heliocentric elements and errors
Epoch:              2454120.5000  =  2007/01/20
Mean Anomaly:          351.19079 +/-    27.831
Argument of Peri:      125.15383 +/-     0.000
Long of Asc Node:       45.35285 +/-     0.000
Inclination:            64.73570 +/-     0.000
Eccentricity:         0.25867125 +/-    0.0001
Semi-Major Axis:     23.91185310 +/-    0.0061
Time of Perihelion: 2455165.5874 +/-    3301.8
Perihelion:          17.72654416 +/-    0.0048
Aphelion:            30.09716203 +/-    0.0078
Period (y)              116.9306 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -9.34533119 +/-    0.0001
Ecliptic Y            0.74634812 +/-    0.0000
Ecliptic Z           15.19953886 +/-    0.0002
Ecliptic XDOT        -0.00241137 +/-    0.0000
Ecliptic YDOT        -0.00351827 +/-    0.0000
Ecliptic ZDOT        -0.00160374 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.85830711 +/-    0.0002
Geocenter to KBO     17.58967167 +/-    0.0002
# Hcoef: 10.89

The following table shows the complete astrometric record for 07BP102. 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 (07BP102) followed by the observatory code and reference code for the source of the astrometry.

2007 01  20.63455  14 19 01.59   +52 13 40.2   23.3r 07BP102   568  C~0V8o      
2007 01  20.64266  14 19 01.61   +52 13 41.2   23.3r 07BP102   568  C~0V8o      
2007 01  20.65078  14 19 01.64   +52 13 42.3   23.3r 07BP102   568  C~0V8o      
2007 01  20.65527  14 19 01.66   +52 13 42.9   25.0g 07BP102   568  C~0V8o      
2007 01  20.66167  14 19 01.68   +52 13 43.9   25.0g 07BP102   568  C~0V8o      
2007 01  20.66814  14 19 01.70   +52 13 44.5   25.0g 07BP102   568  C~0V8o      
2007 01  21.56151  14 19 04.82   +52 15 40.8   23.0i 07BP102   568  C~0V8o      
2007 01  21.58798  14 19 04.91   +52 15 44.4   23.0i 07BP102   568  C~0V8o      
2007 01  21.62227  14 19 05.02   +52 15 49.0   22.1z 07BP102   568  C~0V8o      
2007 01  21.62703  14 19 05.04   +52 15 49.5   22.1z 07BP102   568  C~0V8o      
2007 01  21.65778  14 19 05.11   +52 15 53.6   23.2i 07BP102   568  C~0V8o      
2007 01  23.60396  14 19 10.84   +52 20 09.8   23.2r 07BP102   568  C~0V8o      
2007 01  23.60816  14 19 10.83   +52 20 10.3   23.2r 07BP102   568  C~0V8o      
2007 01  23.61223  14 19 10.83   +52 20 10.7   23.2r 07BP102   568  C~0V8o      
2007 01  24.57567  14 19 13.13   +52 22 18.6   23.1i 07BP102   568  C~0V8o      
2007 01  24.59464  14 19 13.17   +52 22 21.3   23.1i 07BP102   568  C~0V8o      
2007 01  24.60413  14 19 13.19   +52 22 22.5   23.1i 07BP102   568  C~0V8o      
2007 01  24.62323  14 19 13.24   +52 22 25.3   23.8g 07BP102   568  C~0V8o      
2007 01  24.62960  14 19 13.24   +52 22 26.2   23.8g 07BP102   568  C~0V8o      
2007 01  24.63596  14 19 13.25   +52 22 26.8   23.8g 07BP102   568  C~0V8o      
2007 01  25.57880  14 19 15.16   +52 24 32.9   23.6z 07BP102   568  C~0V8o      
2007 01  25.58354  14 19 15.17   +52 24 33.4   22.2z 07BP102   568  C~0V8o      
2007 01  25.59306  14 19 15.20   +52 24 34.9   22.2z 07BP102   568  C~0V8o      
2007 01  25.60256  14 19 15.22   +52 24 36.1   22.2z 07BP102   568  C~0V8o      
2007 01  25.62160  14 19 15.25   +52 24 38.8   22.2z 07BP102   568  C~0V8o      
2007 02  09.56496  14 19 01.22   +52 58 44.1   23.0r 07BP102   568  C~0V8o      
2007 02  09.56902  14 19 01.20   +52 58 44.8   23.2r 07BP102   568  C~0V8o      
2007 02  09.57307  14 19 01.18   +52 58 45.3   23.2r 07BP102   568  C~0V8o      
2007 02  09.57713  14 19 01.17   +52 58 45.8   23.2r 07BP102   568  C~0V8o      
2007 02  09.58119  14 19 01.16   +52 58 46.4   23.3r 07BP102   568  C~0V8o      
2007 02  13.56023  14 18 43.34   +53 07 51.6   23.3r 07BP102   568  C~0V8o      
2007 02  13.56842  14 18 43.30   +53 07 52.7   23.2r 07BP102   568  C~0V8o      
2007 02  13.57659  14 18 43.25   +53 07 53.8   23.1r 07BP102   568  C~0V8o      
2007 02  13.59072  14 18 43.16   +53 07 55.8   23.7g 07BP102   568  C~0V8o      
2007 02  13.59397  14 18 43.16   +53 07 56.2   23.7g 07BP102   568  C~0V8o      
2007 04  13.46334  14 04 40.49   +54 33 53.9   25.1U 07BP102   568  C~0V8o      
2007 04  13.47837  14 04 40.19   +54 33 54.0   25.1U 07BP102   568  C~0V8o      
2007 04  13.48589  14 04 39.96   +54 33 54.2   25.1U 07BP102   568  C~0V8o      
2013 05  14.31160  14 27 15.95   +21 33 37.0   22.8R 07BP102   G37  C~15zH      
2013 05  14.35507  14 27 15.37   +21 33 35.6         07BP102   G37  C~15zH      
2014 05  25.38905  14 28 32.17   +16 00 13.4   23.2r 07BP102   568  C~15zH      
2014 05  25.39301  14 28 32.12   +16 00 13.2   23.2r 07BP102   568  C~15zH      
2014 05  25.39689  14 28 32.08   +16 00 13.1   23.1r 07BP102   568  C~15zH      
2015 03  21.61650  14 44 30.75   +10 21 51.8   23.3r 07BP102   568  C~1RHl      
2015 04  14.44369  14 40 16.21   +10 38 17.2   22.8r 07BP102   568  C~1RHl      
2015 04  14.54113  14 40 15.02   +10 38 20.1   23.0r 07BP102   568  C~1RHl      
2016 05  06.34062  14 38 36.86   +05 24 25.4   22.9R 07BP102   568  C~1u49      
2016 05  06.43865  14 38 35.63   +05 24 25.6   23.2R 07BP102   568  C~1u49      
2016 05  07.33151  14 38 24.63   +05 24 26.5   23.2R 07BP102   568  C~1u49      
2016 05  08.28608  14 38 12.89   +05 24 26.4   23.6R 07BP102   568  C~1u49      
2016 05  08.38244  14 38 11.68   +05 24 26.3   23.3R 07BP102   568  C~1u49      

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    -0.52       0.00    -0.04
  2   0.0000      0.00    -0.23       0.00    -0.08
  3   0.0000      0.00    -0.19       0.00    -0.04
  4   0.0001      0.00    -0.11       0.00    -0.03
  5   0.0001      0.00    -0.13       0.00     0.14
  6   0.0001      0.00    -0.15       0.00    -0.11
  7   0.0025      0.00    -0.19       0.00    -0.12
  8   0.0026      0.00    -0.06       0.00    -0.02
  9   0.0027      0.00     0.04       0.00     0.05
 10   0.0027      0.00     0.13       0.00    -0.08
 11   0.0028      0.00    -0.19       0.00    -0.02
 12   0.0081      0.00     0.42       0.00    -0.06
 13   0.0081      0.00     0.13       0.00    -0.12
 14   0.0082      0.00    -0.01       0.00    -0.27
 15   0.0108      0.00    -0.11       0.00    -0.35
 16   0.0108      0.00    -0.06       0.00    -0.20
 17   0.0109      0.00    -0.04       0.00    -0.28
 18   0.0109      0.00     0.17       0.00    -0.04
 19   0.0109      0.00    -0.01       0.00     0.00
 20   0.0110      0.00    -0.04       0.00    -0.25
 21   0.0135      0.00    -0.12       0.00    -0.08
 22   0.0135      0.00    -0.08       0.00    -0.22
 23   0.0136      0.00     0.14       0.00    -0.01
 24   0.0136      0.00     0.22       0.00    -0.09
 25   0.0137      0.00     0.23       0.00     0.04
 26   0.0546      0.00     0.00       0.00    -0.17
 27   0.0546      0.00    -0.05       0.00    -0.03
 28   0.0546      0.00    -0.11       0.00    -0.09
 29   0.0546      0.00    -0.01       0.00    -0.15
 30   0.0546      0.00     0.08       0.00    -0.12
 31   0.0655      0.00     0.04       0.00    -0.11
 32   0.0655      0.00     0.12       0.00    -0.13
 33   0.0655      0.00     0.05       0.00    -0.15
 34   0.0656      0.00    -0.13       0.00    -0.09
 35   0.0656      0.00     0.14       0.00    -0.13
 36   0.2268      0.00     0.40       0.00    -0.08
 37   0.2268      0.00     0.55       0.00    -0.13
 38   0.2268      0.00    -0.57       0.00    -0.01
 39   6.3126      0.00     0.27       0.00     0.16
 40   6.3127      0.00     0.11       0.00     0.13
 41   7.3422      0.00     0.07       0.00    -0.03
 42   7.3423      0.00     0.02       0.00    -0.05
 43   7.3423      0.00     0.11       0.00     0.02
 44   8.1642      0.00     0.13       0.00    -0.35
 45   8.2295      0.00     0.17       0.00     0.02
 46   8.2297      0.00     0.13       0.00     0.01
 47   9.2915      0.00     0.12       0.00     0.03
 48   9.2917      0.00     0.12       0.00     0.05
 49   9.2942      0.00     0.10       0.00     0.01
 50   9.2968      0.00     0.29       0.00     0.08
 51   9.2971      0.00     0.18       0.00     0.05

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.

07BP102    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        23.885    23.885    23.885
ecceobj         0.257     0.257     0.257
incobj         64.735    64.735    64.735
qmin           17.038    17.674    16.876
qmax           30.872    30.759    30.950
amean          23.892    24.101    23.916
amin           23.629    23.716    23.659
amax           24.275    24.580    24.360
emean           0.206     0.182     0.221
emin            0.156     0.132     0.188
emax            0.286     0.259     0.292
imean          64.344    64.345    64.244
imin           63.739    63.638    63.722
imax           64.685    64.739    64.541
excite_mean     0.925     0.920     0.928
fracstop        0.101     0.075     0.074
cjmean          2.005     1.999     2.002

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        77.1      82.5      87.7
kozaiamp         53.5      46.1      36.4