Orbit Fit and Astrometric record for 01OQ108

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: 01OQ108   
# Created Sat Oct 21 01:37:13 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:  16.01y
# First observation: 2001/05/24
#  Last observation: 2017/05/26
Preliminary a, adot, b, bdot, g, gdot:
  -0.000493   0.021333  -0.000009   0.000097   0.021550   0.000000
# Chi-squared of fit:    60.74 DOF:   46 RMS:  0.27
# Min/Max residuals:    -0.91    0.50
# Exact a, adot, b, bdot, g, gdot:
  1.537302E-05  2.066100E-02  2.725721E-07  9.077092E-05  2.229026E-02 -5.000225E-05
# Covariance matrix:
  1.0213E-13 -3.3764E-14 -1.1396E-16 -9.7280E-17 -1.4493E-14 -8.1559E-14
 -3.3764E-14  4.0415E-14 -5.6136E-16  2.1081E-16 -2.7268E-14  1.1715E-13
 -1.1396E-16 -5.6136E-16  7.7150E-14 -7.5268E-15  2.9145E-15 -1.7512E-15
 -9.7280E-17  2.1081E-16 -7.5268E-15  2.7516E-15 -3.9895E-16  6.5623E-16
 -1.4493E-14 -2.7268E-14  2.9145E-15 -3.9895E-16  1.8605E-13 -8.5160E-14
 -8.1559E-14  1.1715E-13 -1.7512E-15  6.5623E-16 -8.5160E-14  3.6440E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.359892 -144.900185   -0.474874    0.037012   -0.900885  2452053.525303
# Heliocentric elements and errors
Epoch:              2452050.5000  =  2001/05/21
Mean Anomaly:          132.10819 +/-     0.262
Argument of Peri:      311.10885 +/-     0.256
Long of Asc Node:      131.31456 +/-     0.004
Inclination:             2.32475 +/-     0.000
Eccentricity:         0.01375769 +/-    0.0000
Semi-Major Axis:     45.33712483 +/-    0.0038
Time of Perihelion: 2411133.2328 +/-      81.0
Perihelion:          44.71339077 +/-    0.0041
Aphelion:            45.96085889 +/-    0.0042
Period (y)              305.2735 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -37.13410447 +/-    0.0007
Ecliptic Y          -26.67643344 +/-    0.0005
Ecliptic Z            1.84727395 +/-    0.0000
Ecliptic XDOT         0.00145619 +/-    0.0000
Ecliptic YDOT        -0.00207018 +/-    0.0000
Ecliptic ZDOT         0.00001108 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.76009437 +/-    0.0006
Geocenter to KBO     44.86264972 +/-    0.0009
# Hcoef:  6.60

The following table shows the complete astrometric record for 01OQ108. 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 (01OQ108) followed by the observatory code and reference code for the source of the astrometry.

2001 05  24.02456  14 14 28.30   -10 59 47.7   23.0R 01OQ108   807  Cd1817      
2001 05  24.13291  14 14 27.90   -10 59 45.6         01OQ108   807  Cd1817      
2001 06  09.01845  14 13 34.52   -10 55 39.0   22.3R 01OQ108   304  C44251      
2001 06  09.06012  14 13 34.42   -10 55 38.3         01OQ108   304  C44251      
2001 07  24.27026  14 12 33.25   -10 52 31.0   22.8R 01OQ108   568  Cd3420      
2001 07  25.28616  14 12 33.71   -10 52 36.7   23.0R 01OQ108   568  Cd3420      
2001 07  26.28393  14 12 34.24   -10 52 42.6   23.2R 01OQ108   568  Cd3420      
2001 08  09.99218  14 12 51.64   -10 55 00.3         01OQ108   807  Cd3420      
2001 08  10.99635  14 12 53.46   -10 55 13.0         01OQ108   807  Cd3420      
2001 08  12.98782  14 12 57.34   -10 55 38.9         01OQ108   807  Cd3420      
2001 08  13.01683  14 12 57.39   -10 55 39.4         01OQ108   807  Cd3420      
2002 03  08.55083  14 23 55.63   -11 48 30.4   22.4R 01OQ108   568  C~0778      
2002 03  08.61865  14 23 55.45   -11 48 29.4         01OQ108   568  C~0778      
2002 03  15.17339  14 23 38.03   -11 46 46.0         01OQ108   950  Cf4954      
2002 03  15.20646  14 23 37.91   -11 46 45.0         01OQ108   950  Cf4954      
2002 04  06.43696  14 22 20.77   -11 39 35.8         01OQ108   696  Cf4954      
2002 04  06.46370  14 22 20.67   -11 39 35.0         01OQ108   696  Cf4954      
2002 04  06.48905  14 22 20.57   -11 39 34.6         01OQ108   696  Cf4954      
2003 05  01.39742  14 25 11.87   -11 53 25.2   22.5R 01OQ108   568  Ch9873      
2003 05  01.48652  14 25 11.49   -11 53 23.0         01OQ108   568  Ch9873      
2007 05  03.37600  14 43 33.73   -13 21 10.8   23.5R 01OQ108   250  S~06AP      
2007 05  03.38364  14 43 33.69   -13 21 10.7         01OQ108   250  S~06AP      
2007 05  03.39059  14 43 33.66   -13 21 10.5         01OQ108   250  S~06AP      
2007 05  03.39753  14 43 33.63   -13 21 10.4         01OQ108   250  S~06AP      
2017 05  26.31009  15 28 52.60   -16 31 36.3   23.4R 01OQ108   G37  C~2GiT      
2017 05  26.38110  15 28 52.28   -16 31 35.7         01OQ108   G37  C~2GiT      

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    -0.04
  2   0.0003     -6.25    -0.03       0.03     0.18
  3   0.0438   -829.64     0.19     -28.24     0.17
  4   0.0439   -831.26     0.50     -28.07     0.45
  5   0.1677  -1743.28     0.18    -151.13     0.33
  6   0.1705  -1735.00     0.09    -154.25     0.30
  7   0.1732  -1725.67    -0.11    -157.22     0.37
  8   0.2135  -1438.14    -0.27    -201.74    -0.17
  9   0.2162  -1408.63    -0.31    -204.80    -0.29
 10   0.2217  -1346.12    -0.07    -210.21     0.09
 11   0.2217  -1345.26    -0.13    -210.43    -0.05
 12   0.7899   8844.44    -0.18     -27.45     0.01
 13   0.7901   8841.61    -0.31     -27.36    -0.04
 14   0.8081   8565.64     0.26     -12.38    -0.44
 15   0.8082   8563.64    -0.19     -12.01    -0.13
 16   0.8690   7350.89     0.10      26.20     0.25
 17   0.8691   7349.24     0.13      26.48     0.50
 18   0.8692   7347.72     0.20      26.38     0.37
 19   1.9367  10001.29     0.02      55.50    -0.91
 20   1.9369   9995.29     0.09      55.79    -0.57
 21   5.9421  27113.47     0.05     132.09    -0.16
 22   5.9421  27112.87    -0.02     132.01    -0.24
 23   5.9421  27112.39    -0.04     132.07    -0.18
 24   5.9422  27111.93    -0.02     132.03    -0.22
 25  16.0063  70548.80    -0.05     316.12     0.47
 26  16.0065  70543.66     0.05     315.48    -0.04

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.

01OQ108    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.249    45.260    45.238
ecceobj         0.014     0.014     0.014
incobj          2.325     2.325     2.325
qmin           44.171    44.171    44.155
qmax           47.201    47.175    47.168
amean          45.587    45.598    45.575
amin           45.232    45.240    45.220
amax           45.943    45.960    45.930
emean           0.015     0.015     0.015
emin            0.001     0.001     0.001
emax            0.027     0.027     0.027
imean           1.443     1.442     1.445
imin            1.020     1.020     1.020
imax            1.796     1.794     1.799
excite_mean     0.029     0.029     0.029
fracstop        1.000     1.000     1.000
cjmean          3.120     3.120     3.120

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       199.8     200.0     199.6
kozaiamp        179.9     180.0     180.0