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 Fri Dec 15 02:37:06 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   20
# Arc:  15.13y
# First observation: 1999/07/19
#  Last observation: 2014/09/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.001583   0.023823  -0.000015   0.000199   0.024107   0.000000
# Chi-squared of fit:    26.76 DOF:   32 RMS:  0.21
# Min/Max residuals:    -0.44    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.370410E-05  2.289850E-02 -2.861058E-08  1.915559E-04  2.378062E-02 -1.290112E-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:              2451370.5000  =  1999/07/11
Mean Anomaly:          317.40682 +/-     0.251
Argument of Peri:       14.98208 +/-     0.261
Long of Asc Node:      332.71571 +/-     0.006
Inclination:             0.54668 +/-     0.000
Eccentricity:         0.01774317 +/-    0.0001
Semi-Major Axis:     43.62214776 +/-    0.0058
Time of Perihelion: 2463821.2803 +/-      73.2
Perihelion:          42.84815257 +/-    0.0065
Aphelion:            44.39614295 +/-    0.0067
Period (y)              288.1169 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.91319488 +/-    0.0008
Ecliptic Y          -35.80717313 +/-    0.0012
Ecliptic Z           -0.19905241 +/-    0.0000
Ecliptic XDOT         0.00217609 +/-    0.0000
Ecliptic YDOT         0.00149173 +/-    0.0000
Ecliptic ZDOT         0.00002217 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.05849694 +/-    0.0011
Geocenter to KBO     42.05105052 +/-    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     0.31       0.00     0.03
  2   0.0001     -2.45    -0.18       0.08     0.11
  3   0.0002     -4.27    -0.03      -0.20    -0.18
  4   2.0205   8927.28 (  -0.18)     80.67 (   0.65)
  5   2.0234   8852.34     0.07      80.43     0.29
  6   2.0235   8848.38    -0.29      80.42     0.26
  7   2.0237   8844.96     0.07      80.26     0.08
  8   2.0996   6964.93    -0.30      85.22    -0.44
  9   2.0997   6963.80    -0.11      85.40    -0.26
 10   2.0997   6962.35    -0.23      85.46    -0.21
 11   2.1024   6902.49     0.02      85.61    -0.33
 12   2.1025   6901.15    -0.03      85.53    -0.41
 13   2.1707   5627.68     0.15      94.66     0.18
 14   2.1709   5624.94     0.33      94.83     0.30
 15   2.9678  14963.45     0.22     119.16     0.20
 16   2.9679  14960.95     0.14     119.21     0.23
 17   2.9680  14958.72    -0.13     119.18     0.20
 18  15.1234  70433.79    -0.03     625.34     0.12
 19  15.1237  70427.19     0.04     625.16    -0.11
 20  15.1261  70359.53    -0.01     625.39    -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.

01OG109    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.544    43.561    43.526
ecceobj         0.017     0.017     0.016
incobj          0.548     0.548     0.548
qmin           41.962    41.964    41.920
qmax           45.315    45.320    45.334
amean          43.553    43.570    43.536
amin           43.222    43.235    43.205
amax           43.893    43.906    43.876
emean           0.017     0.017     0.017
emin            0.000     0.000     0.000
emax            0.033     0.033     0.033
imean           2.104     2.103     2.105
imin            1.319     1.323     1.317
imax            2.779     2.775     2.787
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       195.4     194.2     195.9
kozaiamp        180.0     180.0     180.0