Orbit Fit and Astrometric record for 00GM137

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: 00GM137   
# Created Thu Dec 14 02:37:03 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   28 observations of   29
# Arc:  14.55y
# First observation: 2000/04/02
#  Last observation: 2014/10/22
# Chi-squared of fit:   126.10 DOF:   50 RMS:  0.38
# Min/Max residuals:    -0.65    0.96
# Exact a, adot, b, bdot, g, gdot:
  3.678558E-05  3.976425E-01  1.778084E-06  1.612960E-02  1.618196E-01 -4.615910E-02
# Covariance matrix:
  1.3670E-13 -2.7015E-13  2.1220E-14  4.3506E-14  1.3806E-13 -4.5603E-13
 -2.7015E-13  9.7656E-13 -8.7749E-14 -1.4933E-13 -7.6403E-13  1.6540E-12
  2.1220E-14 -8.7749E-14  1.0111E-13 -7.2333E-14  7.1300E-14 -2.0812E-13
  4.3506E-14 -1.4933E-13 -7.2333E-14  1.7091E-13  1.0146E-13 -4.5217E-13
  1.3806E-13 -7.6403E-13  7.1300E-14  1.0146E-13  7.4641E-13 -1.1932E-12
 -4.5603E-13  1.6540E-12 -2.0812E-13 -4.5217E-13 -1.1932E-12  4.6658E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   18.199678  172.328664   -0.355924    0.294010   -0.894925  2451636.866693
# Heliocentric elements and errors
Epoch:              2451636.5000  =  2000/04/02
Mean Anomaly:          329.69230 +/-     0.000
Argument of Peri:      123.78850 +/-     0.000
Long of Asc Node:       89.74494 +/-     0.000
Inclination:            15.85743 +/-     0.000
Eccentricity:         0.11800948 +/-    0.0000
Semi-Major Axis:      7.85095521 +/-    0.0000
Time of Perihelion: 2452312.9452 +/-       0.0
Perihelion:           6.92446806 +/-    0.0000
Aphelion:             8.77744236 +/-    0.0000
Period (y)               21.9984 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -6.79251893 +/-    0.0000
Ecliptic Y            0.55989019 +/-    0.0000
Ecliptic Z            1.93013366 +/-    0.0000
Ecliptic XDOT        -0.00008452 +/-    0.0000
Ecliptic YDOT        -0.00677127 +/-    0.0000
Ecliptic ZDOT         0.00001544 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    7.08360284 +/-    0.0000
Geocenter to KBO      6.17979549 +/-    0.0000
# Hcoef: 14.29

The following table shows the complete astrometric record for 00GM137. 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 (00GM137) followed by the observatory code and reference code for the source of the astrometry.

2000 04  02.36595  12 01 55.23   +19 41 39.1   22.2R 00GM137   568  Cb2876      
2000 04  02.36955  12 01 55.13   +19 41 39.5   22.9R 00GM137   568  Cb2876      
2000 04  02.40443  12 01 54.37   +19 41 42.1   22.1R 00GM137   568  Cb2876      
2000 04  02.40769  12 01 54.27   +19 41 42.9   22.8R 00GM137   568  Cb2876      
2000 04  02.44922  12 01 53.35   +19 41 46.5   22.1R 00GM137   568  Cb2876      
2000 04  02.45259  12 01 53.26   +19 41 46.9   22.8R 00GM137   568  Cb2876      
2000 04  04.42535  12 01 10.44   +19 44 27.5   22.8R 00GM137   568  Cb2876      
2000 04  04.43001  12 01 10.33   +19 44 27.9   22.8R 00GM137   568  Cb2876      
2000 04  13.42193  11 58 06.30   +19 52 54.6   22.9R 00GM137   568  Cb2876      
2000 04  13.42891  11 58 06.14   +19 52 54.9   22.9R 00GM137   568  Cb2876      
2000 05  07.25839  11 52 15.00   +19 45 00.8   22.9R 00GM137   568  Cb5784      
2000 05  07.30582  11 52 14.54   +19 44 57.1   22.9R 00GM137   568  Cb5784      
2000 05  27.17961  11 50 47.81   +19 07 04.6   22.6R 00GM137   695  Cb5784      
2000 05  27.22622  11 50 47.81   +19 06 56.9   22.9R 00GM137   695  Cb5784      
2000 05  27.26490  11 50 47.84   +19 06 51.1   22.8R 00GM137   695  Cb5784      
2000 07  01.28096  11 56 26.493  +17 09 04.41  23.4R 00GM137   568  Cb6998      
2000 07  01.28578  11 56 26.568  +17 09 03.50  23.3R 00GM137   568  Cb6998      
2000 07  01.31640  11 56 27.104  +17 08 55.93  23.2R 00GM137   568  Cb6998      
2001 02  17.16230  13 41 04.44   +07 44 56.0   22.0R 00GM137   950  Cc6646      
2001 02  17.20023  13 41 04.24   +07 45 01.6   21.7R 00GM137   950  Cc6646      
2001 02  17.24571  13 41 04.00   +07 45 08.4   22.3R 00GM137   950  Cc6646      
2001 02  19.15636  13 40 53.73   +07 49 53.0   21.9R 00GM137   950  Cc6646      
2001 02  19.22129  13 40 53.30   +07 50 02.7         00GM137   950  Cc6646      
2002 02  13.57343  14 59 09.944  -02 48 45.68        00GM137   568  Ce8756      
2002 02  13.58152  14 59 10.034  -02 48 45.10  22.6R 00GM137   568  Ce8756      
2002 02  14.59359  14 59 18.227  -02 47 54.05        00GM137   568  Ce8756      
2002 02  14.62624  14 59 18.460  -02 47 52.70  22.9R 00GM137   568  Ce8756      
2014 10  22.35967  03 56 29.81   +10 13 13.5   23.3R 00GM137   G37  C~1Bx9      
2014 10  22.45255  03 56 28.23   +10 13 08.1         00GM137   G37  C~1Bx9      

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 (  -0.71)      0.00 (  -2.40)
  2   0.0000      0.00     0.36       0.00    -0.19
  3   0.0001      0.00     0.72       0.00    -0.60
  4   0.0001      0.00     0.32       0.00    -0.08
  5   0.0002      0.00     0.52       0.00    -0.03
  6   0.0002      0.00     0.30       0.00     0.09
  7   0.0056      0.00     0.09       0.00     0.14
  8   0.0057      0.00    -0.01       0.00     0.18
  9   0.0303      0.00     0.96       0.00    -0.48
 10   0.0303      0.00     0.64       0.00    -0.42
 11   0.0955      0.00    -0.49       0.00    -0.45
 12   0.0957      0.00    -0.26       0.00    -0.65
 13   0.1501      0.00    -0.30       0.00     0.88
 14   0.1502      0.00    -0.57       0.00     0.30
 15   0.1503      0.00    -0.40       0.00     0.43
 16   0.2462      0.00    -0.15       0.00     0.35
 17   0.2462      0.00    -0.30       0.00     0.61
 18   0.2463      0.00    -0.34       0.00     0.50
 19   0.8783      0.00     0.08       0.00    -0.08
 20   0.8784      0.00     0.12       0.00    -0.07
 21   0.8785      0.00     0.19       0.00     0.05
 22   0.8838      0.00     0.34       0.00     0.20
 23   0.8839      0.00     0.18       0.00     0.12
 24   1.8678      0.00    -0.21       0.00    -0.33
 25   1.8678      0.00     0.17       0.00    -0.15
 26   1.8706      0.00    -0.28       0.00    -0.01
 27   1.8707      0.00    -0.38       0.00    -0.34
 28  14.5544      0.00     0.14       0.00     0.01
 29  14.5547      0.00     0.32       0.00    -0.06

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.

00GM137    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         7.849     7.849     7.849
ecceobj         0.118     0.118     0.118
incobj         15.858    15.858    15.858
qmin            5.888     4.903     5.679
qmax            9.767    22.655     9.176
amean           7.526    10.620     7.162
amin            7.122     7.259     5.910
amax            8.070    13.823     7.849
emean           0.142     0.455     0.119
emin            0.037     0.037     0.015
emax            0.217     0.639     0.235
imean          14.555    14.942    14.128
imin           14.216    13.462    13.306
imax           15.076    17.587    15.007
excite_mean     0.294     0.534     0.278
fracstop        0.001     0.004     0.001
cjmean          4.959     3.932     5.163

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       171.9     170.5     220.5
kozaiamp        148.5     161.4     153.3