Orbit Fit and Astrometric record for 01OM109

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: 01OM109   
# Created Sat Oct 21 01:37:13 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   20
# Arc:   4.87y
# First observation: 2001/07/26
#  Last observation: 2006/06/08
Preliminary a, adot, b, bdot, g, gdot:
   0.000490   0.021678   0.000019   0.001355   0.022830   0.000000
# Chi-squared of fit:     7.82 DOF:   30 RMS:  0.12
# Min/Max residuals:    -0.28    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.726773E-05  2.299525E-02  8.940553E-07  1.425299E-03  2.283719E-02  9.403769E-03
# Covariance matrix:
  3.1895E-13 -3.5404E-13  4.2000E-15 -1.3792E-14  2.7052E-13 -2.0956E-12
 -3.5404E-13  7.8948E-13 -1.1064E-14  3.7760E-14 -2.7748E-13  5.6982E-12
  4.2000E-15 -1.1064E-14  1.3230E-13 -3.4346E-14  2.7559E-15 -8.4711E-14
 -1.3792E-14  3.7760E-14 -3.4346E-14  2.6000E-14 -7.8211E-15  2.9207E-13
  2.7052E-13 -2.7748E-13  2.7559E-15 -7.8211E-15  5.5214E-13 -1.2219E-12
 -2.0956E-12  5.6982E-12 -8.4711E-14  2.9207E-13 -1.2219E-12  4.3998E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.202204  -49.807462    0.125586    0.003421   -1.010838  2452116.858513
# Heliocentric elements and errors
Epoch:              2452110.5000  =  2001/07/20
Mean Anomaly:           25.76874 +/-     0.026
Argument of Peri:      291.37750 +/-     0.012
Long of Asc Node:      306.86255 +/-     0.001
Inclination:             3.56264 +/-     0.000
Eccentricity:         0.48955329 +/-    0.0004
Semi-Major Axis:     67.92279503 +/-    0.0439
Time of Perihelion: 2437474.8340 +/-       3.8
Perihelion:          34.67096747 +/-    0.0346
Aphelion:           101.17462259 +/-    0.0705
Period (y)              559.7982 +/-      0.54
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.81882146 +/-    0.0009
Ecliptic Y          -34.29597934 +/-    0.0011
Ecliptic Z            0.15460423 +/-    0.0000
Ecliptic XDOT         0.00282446 +/-    0.0000
Ecliptic YDOT         0.00092005 +/-    0.0000
Ecliptic ZDOT         0.00017506 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.79690360 +/-    0.0010
Geocenter to KBO     43.78822111 +/-    0.0014
# Hcoef:  7.73

The following table shows the complete astrometric record for 01OM109. 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 (01OM109) followed by the observatory code and reference code for the source of the astrometry.

2001 07  26.35777  20 50 19.82   -17 29 40.2   24.3R 01OM109   568  Ce0251      
2001 07  26.41702  20 50 19.58   -17 29 41.4   23.8R 01OM109   568  Ce0251      
2001 07  26.47919  20 50 19.30   -17 29 42.1   24.5R 01OM109   568  Ce0251      
2001 08  13.02713  20 49 00.44   -17 34 41.7         01OM109   807  Ce0251      
2001 08  13.06199  20 49 00.29   -17 34 42.1         01OM109   807  Ce0251      
2001 09  18.13819  20 46 43.92   -17 43 15.3         01OM109   304  Ce0251      
2001 09  18.18472  20 46 43.79   -17 43 15.8         01OM109   304  Ce0251      
2001 09  18.23426  20 46 43.64   -17 43 16.3         01OM109   304  Ce0251      
2001 11  14.03099  20 46 16.66   -17 44 31.8   23.6R 01OM109   309  Ce1851      
2001 11  15.04998  20 46 18.81   -17 44 22.7   23.6R 01OM109   309  Ce1851      
2002 07  05.40026  20 56 57.53   -16 57 57.6   24.7R 01OM109   695  Ci2657      
2002 07  05.43522  20 56 57.37   -16 57 58.7   24.4R 01OM109   695  Ci2657      
2002 07  05.46145  20 56 57.28   -16 57 59.2   24.3R 01OM109   695  Ci2657      
2003 07  06.47913  21 01 54.74   -16 32 12.6   23.7R 01OM109   568  Ci2657      
2003 07  06.53557  21 01 54.58   -16 32 13.0         01OM109   568  Ci2657      
2003 07  07.51440  21 01 50.85   -16 32 27.9         01OM109   568  Ci2657      
2006 06  08.27464  21 17 30.28   -15 09 38.4   22.7R 01OM109   250  S~06AP      
2006 06  08.27903  21 17 30.27   -15 09 38.4         01OM109   250  S~06AP      
2006 06  08.33949  21 17 30.17   -15 09 38.8         01OM109   250  S~06AP      
2006 06  08.34388  21 17 30.16   -15 09 38.9         01OM109   250  S~06AP      

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    -0.28       0.00     0.02
  2   0.0002     -3.63     0.09      -0.23    -0.27
  3   0.0003     -7.68     0.24       0.17     0.06
  4   0.0484  -1174.64    -0.15      14.20     0.03
  5   0.0485  -1176.81    -0.01      14.39     0.19
  6   0.1472  -3192.60     0.09      38.25    -0.01
  7   0.1474  -3194.53     0.15      38.26    -0.05
  8   0.1475  -3196.73     0.05      38.35    -0.01
  9   0.3030  -3588.55    -0.05      67.41     0.08
 10   0.3058  -3556.51    -0.14      68.08     0.25
 11   0.9419   6002.64 (   0.42)    272.98 (   0.45)
 12   0.9420   6000.12    -0.08     272.56    -0.01
 13   0.9421   5998.74     0.04     272.44    -0.17
 14   1.9442  10541.03    -0.05     559.40    -0.16
 15   1.9444  10538.71 (   0.85)    559.67 (   0.03)
 16   1.9470  10482.90     0.11     560.57    -0.02
 17   4.8677  25011.42    -0.00    1355.89     0.02
 18   4.8677  25011.28    -0.03    1355.93     0.06
 19   4.8678  25009.76     0.04    1355.99     0.03
 20   4.8679  25009.59    -0.02    1355.94    -0.02

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.

01OM109    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        68.371    68.505    68.239
ecceobj         0.491     0.492     0.490
incobj          3.553     3.553     3.553
qmin           34.048    34.114    33.923
qmax          105.222   105.519   105.938
amean          67.930    68.193    67.921
amin           66.084    66.807    65.625
amax           70.038    70.185    70.256
emean           0.487     0.489     0.488
emin            0.469     0.475     0.465
emax            0.504     0.503     0.508
imean           5.614     5.888     5.297
imin            5.050     5.048     4.372
imax            6.327     6.844     6.226
excite_mean     0.496     0.499     0.497
fracstop        1.000     1.000     1.000
cjmean          3.055     3.053     3.053

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       161.3     212.3     181.5
kozaiamp        180.0     180.0     180.0