Orbit Fit and Astrometric record for 01OG109

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: 01OG109   
# Created Wed Oct 17 01:07:52 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   20 observations of   20
# Arc:  15.13y
# First observation: 1999/07/19
#  Last observation: 2014/09/03
# Chi-squared of fit:    35.44 DOF:   34 RMS:  0.24
# Min/Max residuals:    -0.52    0.57
# Exact a, adot, b, bdot, g, gdot:
  1.367888E-05  2.289849E-02  1.769879E-07  1.915433E-04  2.378054E-02 -1.291468E-04
# Covariance matrix:
  4.7360E-13 -2.1825E-13  2.8268E-15 -1.8540E-15  7.8278E-14 -5.5985E-13
 -2.1825E-13  1.4640E-13 -1.9550E-15  1.2470E-15  6.8826E-14  3.7724E-13
  2.8268E-15 -1.9550E-15  1.2672E-13 -1.2191E-14 -8.7212E-16 -5.1469E-15
 -1.8540E-15  1.2470E-15 -1.2191E-14  2.9321E-15  3.7918E-16  3.3009E-15
  7.8278E-14  6.8826E-14 -8.7212E-16  3.7918E-16  6.4931E-13  1.1828E-13
 -5.5985E-13  3.7724E-13 -5.1469E-15  3.3009E-15  1.1828E-13  9.9826E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.271247  -56.084396    0.142685   -0.004996   -1.004047  2451378.851123
# Heliocentric elements and errors
Epoch:              2451378.5000  =  1999/07/19
Mean Anomaly:          317.44097 +/-     0.251
Argument of Peri:       14.97544 +/-     0.261
Long of Asc Node:      332.71624 +/-     0.006
Inclination:             0.54665 +/-     0.000
Eccentricity:         0.01775393 +/-    0.0001
Semi-Major Axis:     43.62269466 +/-    0.0058
Time of Perihelion: 2463819.5301 +/-      75.5
Perihelion:          42.84822035 +/-    0.0065
Aphelion:            44.39716897 +/-    0.0067
Period (y)              288.1223 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.91327116 +/-    0.0008
Ecliptic Y          -35.80728848 +/-    0.0012
Ecliptic Z           -0.19904442 +/-    0.0000
Ecliptic XDOT         0.00217609 +/-    0.0000
Ecliptic YDOT         0.00149174 +/-    0.0000
Ecliptic ZDOT         0.00002217 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.05864297 +/-    0.0011
Geocenter to KBO     42.05121754 +/-    0.0014
# Hcoef:  8.14

The following table shows the complete astrometric record for 01OG109. 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 (01OG109) followed by the observatory code and reference code for the source of the astrometry.

1999 07  19.35038  20 25 12.75   -19 32 18.4   23.8R 01OG109   568  Cf8906      
1999 07  19.37813  20 25 12.58   -19 32 18.9   24.2R 01OG109   568  Cf8906      
1999 07  19.40597  20 25 12.46   -19 32 19.6   24.2R 01OG109   568  Cf8906      
2001 07  26.33062  20 35 22.47   -18 54 55.4         01OG109   568  Cd7728      
2001 07  27.39902  20 35 17.37   -18 55 14.3   23.5R 01OG109   568  Cd7728      
2001 07  27.44937  20 35 17.10   -18 55 15.3         01OG109   568  Cd7728      
2001 07  27.50221  20 35 16.87   -18 55 16.3   23.9R 01OG109   568  Cd7728      
2001 08  24.24085  20 33 08.57   -19 02 57.2   24.3R 01OG109   568  Cd7728      
2001 08  24.26181  20 33 08.49   -19 02 57.3   24.2R 01OG109   568  Cd7728      
2001 08  24.28289  20 33 08.39   -19 02 57.6   24.0R 01OG109   568  Cd7728      
2001 08  25.25689  20 33 04.30   -19 03 12.2         01OG109   568  Cd7728      
2001 08  25.27754  20 33 04.21   -19 03 12.6         01OG109   568  Cd7728      
2001 09  19.18914  20 31 37.04   -19 08 16.1   24. R 01OG109   675  Cd7728      
2001 09  19.26248  20 31 36.85   -19 08 16.6         01OG109   675  Cd7728      
2002 07  07.34389  20 42 11.25   -18 28 48.5   24.1R 01OG109   695  Cf8906      
2002 07  07.38133  20 42 11.08   -18 28 49.1   24.7R 01OG109   695  Cf8906      
2002 07  07.41145  20 42 10.93   -18 28 49.7   24.2R 01OG109   695  Cf8906      
2014 09  02.17852  21 40 35.38   -14 00 47.2   24.4R 01OG109   G37  C~18cF      
2014 09  02.26648  21 40 35.00   -14 00 49.3         01OG109   G37  C~18cF      
2014 09  03.17570  21 40 31.06   -14 01 08.9         01OG109   G37  C~18cF      

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     0.39       0.00     0.08
  2   0.0001      0.00    -0.15       0.00     0.04
  3   0.0002      0.00     0.08       0.00    -0.21
  4   2.0205      0.00    -0.27       0.00     0.57
  5   2.0234      0.00     0.08       0.00     0.28
  6   2.0235      0.00    -0.28       0.00     0.16
  7   2.0237      0.00     0.13       0.00     0.07
  8   2.0996      0.00    -0.12       0.00    -0.52
  9   2.0997      0.00     0.03       0.00    -0.30
 10   2.0997      0.00    -0.10       0.00    -0.28
 11   2.1024      0.00     0.18       0.00    -0.34
 12   2.1025      0.00     0.15       0.00    -0.43
 13   2.1707      0.00     0.16       0.00     0.19
 14   2.1709      0.00     0.31       0.00     0.35
 15   2.9678      0.00     0.26       0.00     0.23
 16   2.9679      0.00     0.17       0.00     0.25
 17   2.9680      0.00    -0.10       0.00     0.14
 18  15.1234      0.00    -0.00       0.00     0.11
 19  15.1237      0.00     0.13       0.00    -0.08
 20  15.1261      0.00     0.06       0.00    -0.03

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.

01OG109    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.547    43.547    43.547
ecceobj         0.017     0.017     0.017
incobj          0.548     0.548     0.548
qmin           41.935    41.935    41.935
qmax           45.308    45.303    45.313
amean          43.557    43.557    43.557
amin           43.223    43.222    43.225
amax           43.893    43.893    43.893
emean           0.017     0.017     0.017
emin            0.000     0.000     0.000
emax            0.033     0.033     0.033
imean           2.104     2.104     2.104
imin            1.321     1.321     1.321
imax            2.777     2.777     2.777
excite_mean     0.041     0.041     0.041
fracstop        1.000     1.000     1.000
cjmean          3.094     3.094     3.094

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       196.1     196.0     196.0
kozaiamp        179.9     180.0     179.9