Orbit Fit and Astrometric record for 129772

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: 129772    
# Created Mon Oct 23 01:36:31 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   29 observations of   29
# Arc:  17.19y
# First observation: 1999/03/21
#  Last observation: 2016/05/29
# Chi-squared of fit:    73.15 DOF:   52 RMS:  0.28
# Min/Max residuals:    -0.53    0.77
# Exact a, adot, b, bdot, g, gdot:
  1.632687E-05  2.379529E-02  8.165094E-07 -4.054289E-04  2.422503E-02 -1.899692E-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
    3.234067 -169.451850    0.178784    0.055505   -0.986702  2451258.828478
# Heliocentric elements and errors
Epoch:              2451258.5000  =  1999/03/21
Mean Anomaly:          336.09900 +/-     0.000
Argument of Peri:      132.28680 +/-     0.000
Long of Asc Node:       83.27693 +/-     0.000
Inclination:             3.30373 +/-     0.000
Eccentricity:         0.02880784 +/-    0.0000
Semi-Major Axis:     43.39535076 +/-    0.0000
Time of Perihelion: 2458190.7911 +/-       0.0
Perihelion:          42.14522446 +/-    0.0000
Aphelion:            44.64547706 +/-    0.0000
Period (y)              285.8729 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.51336415 +/-    0.0000
Ecliptic Y           -7.55007954 +/-    0.0000
Ecliptic Z            2.32885617 +/-    0.0000
Ecliptic XDOT         0.00050868 +/-    0.0000
Ecliptic YDOT        -0.00263152 +/-    0.0000
Ecliptic ZDOT        -0.00004695 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.25857689 +/-    0.0000
Geocenter to KBO     41.27964952 +/-    0.0000
# Hcoef:  7.06

The following table shows the complete astrometric record for 129772. 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 (129772) followed by the observatory code and reference code for the source of the astrometry.

1999 03  21.327735 12 43 51.06   -01 11 59.9         129772    645  C~1ezg      
1999 03  21.328565 12 43 51.06   -01 11 59.8         129772    645  C~1ezg      
1999 03  21.331052 12 43 51.04   -01 11 59.8         129772    645  C~1ezg      
1999 04  17.16538  12 41 52.69   -00 59 36.5   22.9R 129772    695  Ca4929      
1999 04  17.24112  12 41 52.36   -00 59 34.0         129772    695  Ca4929      
1999 04  17.32756  12 41 51.96   -00 59 31.5         129772    695  Ca4929      
1999 05  05.88876  12 40 38.70   -00 52 29.2         129772    950  Ca4929      
1999 05  05.94958  12 40 38.47   -00 52 27.4         129772    950  Ca4929      
1999 05  06.02539  12 40 38.19   -00 52 26.5         129772    950  Ca4929      
2000 03  03.461956 12 49 58.93   -01 52 58.9         129772    645  C~1ezg      
2000 03  03.462789 12 49 58.93   -01 52 58.9         129772    645  C~1ezg      
2000 03  03.465278 12 49 58.92   -01 52 58.8         129772    645  C~1ezg      
2000 05  24.34600  12 44 36.60   -01 20 28.7         129772    568  Cb5145      
2000 05  25.28619  12 44 34.32   -01 20 18.1         129772    568  Cb5145      
2000 05  25.36389  12 44 34.13   -01 20 17.2         129772    568  Cb5145      
2001 02  25.57087  12 55 18.47   -02 28 33.5   23.3R 129772    568  Cd0744      
2001 02  25.61520  12 55 18.32   -02 28 32.4         129772    568  Cd0744      
2003 04  29.35971  13 00 57.23   -03 07 15.8   23.1R 129772    568  Ch9559      
2003 04  30.37382  13 00 53.11   -03 06 52.4         129772    568  Ch9559      
2003 04  30.43793  13 00 52.84   -03 06 50.9         129772    568  Ch9559      
2006 04  27.18166  13 16 09.70   -04 47 04.6   22.2R 129772    807  Cr3547      
2006 04  28.06387  13 16 05.95   -04 46 43.9         129772    807  Cr3547      
2006 04  28.15679  13 16 05.56   -04 46 41.5         129772    807  Cr3547      
2015 03  23.37561  14 04 27.99   -09 48 57.6   23.3R 129772    695  C~1QOL      
2015 03  23.43889  14 04 27.75   -09 48 56.2         129772    695  C~1QOL      
2015 03  23.50111  14 04 27.50   -09 48 54.7         129772    695  C~1QOL      
2016 05  29.18314  14 04 47.207  -09 54 34.98  23.1R 129772    G37              
2016 05  29.25128  14 04 46.950  -09 54 33.89        129772    G37              
2016 05  29.31865  14 04 46.699  -09 54 32.61        129772    G37              

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    -0.15       0.00     0.69
  2   0.0000      0.00    -0.13       0.00    -0.09
  3   0.0000      0.00    -0.27       0.00    -0.16
  4   0.0735      0.00     0.34       0.00    -0.08
  5   0.0737      0.00     0.32       0.00     0.48
  6   0.0739      0.00    -0.05       0.00     0.77
  7   0.1247      0.00     0.70       0.00    -0.03
  8   0.1249      0.00     0.56       0.00     0.58
  9   0.1251      0.00     0.48       0.00     0.00
 10   0.9531      0.00    -0.07       0.00    -0.17
 11   0.9531      0.00    -0.03       0.00    -0.20
 12   0.9531      0.00    -0.03       0.00    -0.16
 13   1.1773      0.00    -0.36       0.00    -0.27
 14   1.1799      0.00    -0.37       0.00    -0.20
 15   1.1801      0.00    -0.34       0.00    -0.15
 16   1.9363      0.00     0.22       0.00     0.02
 17   1.9364      0.00     0.25       0.00     0.06
 18   4.1069      0.00    -0.02       0.00    -0.12
 19   4.1096      0.00     0.06       0.00    -0.13
 20   4.1098      0.00    -0.02       0.00    -0.10
 21   7.1016      0.00    -0.24       0.00     0.12
 22   7.1040      0.00    -0.03       0.00    -0.53
 23   7.1043      0.00     0.16       0.00    -0.36
 24  16.0056      0.00     0.09       0.00     0.09
 25  16.0058      0.00     0.17       0.00     0.10
 26  16.0060      0.00     0.04       0.00     0.22
 27  17.1906      0.00     0.26       0.00     0.05
 28  17.1908      0.00     0.18       0.00     0.02
 29  17.1909      0.00     0.13       0.00     0.18

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.

129772    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.422    43.422    43.422
ecceobj         0.029     0.029     0.029
incobj          3.304     3.304     3.304
qmin           41.464    41.457    41.475
qmax           46.142    46.159    46.158
amean          43.726    43.726    43.726
amin           43.386    43.382    43.382
amax           44.079    44.078    44.076
emean           0.035     0.035     0.035
emin            0.024     0.024     0.024
emax            0.048     0.048     0.048
imean           1.626     1.625     1.627
imin            0.842     0.842     0.842
imax            2.269     2.260     2.284
excite_mean     0.046     0.046     0.046
fracstop        1.000     1.000     1.000
cjmean          3.096     3.096     3.096

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       175.8     175.3     176.2
kozaiamp        179.9     180.0     179.9