Orbit Fit and Astrometric record for 03SO317

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: 03SO317   
# Created Wed Dec  8 02:09:47 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     39 observations of     39
# Arc:  20.06y
# First observation: 2001/10/15
#  Last observation: 2021/11/05
# Chi-squared of fit:   176.16 DOF:     72 RMS:  0.38
# Min/Max residuals:    -0.98    0.83
# Exact a, adot, b, bdot, g, gdot:
  1.921515E-05  3.837712E-02 -1.033640E-06 -4.343810E-03  3.234083E-02  7.458900E-03
# Covariance matrix:
  2.3301E-13 -8.4311E-14 -1.9728E-14  9.0077E-15  4.9194E-15 -9.9572E-14
 -8.4311E-14  4.4953E-14  1.1247E-14 -5.1430E-15 -4.1406E-14  5.7125E-14
 -1.9728E-14  1.1247E-14  7.0586E-14 -7.4064E-15 -1.1851E-14  1.4766E-14
  9.0077E-15 -5.1430E-15 -7.4064E-15  1.9097E-15  5.4571E-15 -6.7540E-15
  4.9194E-15 -4.1406E-14 -1.1851E-14  5.4571E-15  2.3041E-13 -6.1937E-14
 -9.9572E-14  5.7125E-14  1.4766E-14 -6.7540E-15 -6.1937E-14  7.5072E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.066503   -2.472419   -0.407253    0.016749   -0.905544  2452197.804970
# Heliocentric elements and errors
Epoch:              2452198.5000  =  2001/10/16
Mean Anomaly:           34.40135 +/-     0.006
Argument of Peri:      112.60955 +/-     0.008
Long of Asc Node:      187.32364 +/-     0.000
Inclination:             6.55686 +/-     0.000
Eccentricity:         0.27431345 +/-    0.0000
Semi-Major Axis:     39.38531049 +/-    0.0035
Time of Perihelion: 2443571.2411 +/-       2.0
Perihelion:          28.58139014 +/-    0.0031
Aphelion:            50.18923083 +/-    0.0048
Period (y)              247.1779 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.81118917 +/-    0.0005
Ecliptic Y           -0.95966349 +/-    0.0000
Ecliptic Z            0.57550155 +/-    0.0000
Ecliptic XDOT         0.00076906 +/-    0.0000
Ecliptic YDOT         0.00321894 +/-    0.0000
Ecliptic ZDOT        -0.00035570 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.83074587 +/-    0.0005
Geocenter to KBO     30.92059091 +/-    0.0005
# Hcoef:  8.07

The following table shows the complete astrometric record for 03SO317. 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 (03SO317) followed by the observatory code and reference code for the source of the astrometry.

2001 10  15.304227 23 49 13.80   -00 00 16.4   22.7V 03SO317   645  C~1SKv      
2001 10  15.305056 23 49 13.79   -00 00 16.5   22.7V 03SO317   645  C~1SKv      
2001 10  15.306744 23 49 13.78   -00 00 16.6   23.7V 03SO317   645  C~1SKv      
2003 09  25.39506  00 07 44.12   +01 28 48.7         03SO317   568  Cq9897      
2003 09  25.44253  00 07 43.86   +01 28 46.7         03SO317   568  Cq9897      
2003 09  25.51444  00 07 43.44   +01 28 44.0         03SO317   568  Cq9897      
2003 09  27.35364  00 07 33.24   +01 27 32.1   22.6g 03SO317   568  Cq9897      
2003 09  27.40595  00 07 32.92   +01 27 30.1   23.2g 03SO317   568  Cq9897      
2003 09  27.45116  00 07 32.68   +01 27 28.2   23.9g 03SO317   568  Cq9897      
2003 11  16.162647 00 03 44.63   +01 00 09.2   22.8V 03SO317   645  C~2Jx9      
2003 11  16.163476 00 03 44.63   +01 00 09.2   24.0V 03SO317   645  C~2Jx9      
2003 11  16.165964 00 03 44.63   +01 00 08.8   23.7V 03SO317   645  C~2Jx9      
2004 09  11.31269  00 17 04.97   +02 14 07.7         03SO317   695  Cq9897      
2004 09  11.35860  00 17 04.74   +02 14 05.9         03SO317   695  Cq9897      
2004 09  11.40376  00 17 04.51   +02 14 04.3         03SO317   695  Cq9897      
2004 09  12.35963  00 16 59.45   +02 13 29.1         03SO317   695  Cq9897      
2004 09  12.38585  00 16 59.30   +02 13 28.2         03SO317   695  Cq9897      
2004 09  12.41210  00 16 59.14   +02 13 27.3         03SO317   695  Cq9897      
2004 09  16.33136  00 16 38.11   +02 11 00.6         03SO317   675  Cq9897      
2004 09  16.37340  00 16 37.86   +02 10 59.1         03SO317   675  Cq9897      
2004 09  16.42405  00 16 37.59   +02 10 57.3         03SO317   675  Cq9897      
2004 09  17.31251  00 16 32.78   +02 10 23.4         03SO317   675  Cq9897      
2004 09  17.37539  00 16 32.44   +02 10 21.1         03SO317   675  Cq9897      
2004 09  21.40952  00 16 10.38   +02 07 49.6   23.5r 03SO317   568  Cq9897      
2004 09  21.44066  00 16 10.19   +02 07 48.3   23.5r 03SO317   568  Cq9897      
2004 09  21.46948  00 16 10.04   +02 07 47.2   23.3r 03SO317   568  Cq9897      
2004 09  22.41446  00 16 04.82   +02 07 10.3   23.6r 03SO317   568  Cq9897      
2004 12  03.24625  00 11 10.51   +01 31 54.0   23.4i 03SO317   568  Cq9897      
2004 12  03.29858  00 11 10.44   +01 31 53.3   23.6i 03SO317   568  Cq9897      
2005 07  08.55589  00 28 10.23   +03 12 36.4   22.8r 03SO317   568  Cq9897      
2005 07  08.61960  00 28 10.24   +03 12 36.4   22.5r 03SO317   568  Cq9897      
2005 07  09.44999  00 28 10.43   +03 12 35.5         03SO317   675  Cq9897      
2005 07  09.58999  00 28 10.39   +03 12 36.2   22.7r 03SO317   568  Cq9897      
2005 07  10.46001  00 28 10.55   +03 12 34.0         03SO317   675  Cq9897      
2014 09  27.43424  01 30 37.15   +07 29 22.8   23.8R 03SO317   695  C~1LJE      
2014 09  27.48817  01 30 36.88   +07 29 21.1         03SO317   695  C~1LJE      
2021 11  05.248730 02 13 32.060  +10 06 19.33  22.8G 03SO317   G37  C~5B75      
2021 11  05.303720 02 13 31.763  +10 06 17.53        03SO317   G37  C~5B75      
2021 11  05.363380 02 13 31.431  +10 06 15.94        03SO317   G37  C~5B75      

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     0.00       0.00    -0.24
     2   0.0000      0.00    -0.08       0.00    -0.31
     3   0.0000      0.00    -0.11       0.00    -0.35
     4   1.9441      0.00     0.09       0.00     0.55
     5   1.9443      0.00     0.24       0.00     0.39
     6   1.9444      0.00     0.06       0.00     0.48
     7   1.9495      0.00     0.40       0.00     0.00
     8   1.9496      0.00     0.05       0.00     0.03
     9   1.9498      0.00     0.30       0.00    -0.11
    10   2.0859      0.00    -0.20       0.00    -0.27
    11   2.0859      0.00    -0.16       0.00    -0.26
    12   2.0859      0.00    -0.05       0.00    -0.60
    13   2.9076      0.00    -0.34       0.00     0.07
    14   2.9077      0.00    -0.09       0.00    -0.05
    15   2.9079      0.00     0.11       0.00     0.00
    16   2.9105      0.00     0.13       0.00    -0.10
    17   2.9106      0.00     0.00       0.00    -0.03
    18   2.9106      0.00    -0.27       0.00     0.04
    19   2.9214      0.00    -0.05       0.00    -0.73
    20   2.9215      0.00    -0.32       0.00    -0.65
    21   2.9216      0.00    -0.18       0.00    -0.55
    22   2.9240      0.00    -0.07       0.00    -0.98
    23   2.9242      0.00     0.05       0.00    -0.91
    24   2.9353      0.00     0.56       0.00     0.82
    25   2.9353      0.00     0.33       0.00     0.71
    26   2.9354      0.00     0.51       0.00     0.71
    27   2.9380      0.00     0.26       0.00    -0.04
    28   3.1347      0.00    -0.04       0.00     0.83
    29   3.1348      0.00    -0.09       0.00     0.69
    30   3.7296      0.00    -0.08       0.00     0.09
    31   3.7298      0.00    -0.09       0.00     0.12
    32   3.7321      0.00     0.06       0.00    -0.03
    33   3.7325      0.00    -0.85       0.00     0.77
    34   3.7349      0.00     0.19       0.00    -0.04
    35  12.9504      0.00    -0.15       0.00     0.31
    36  12.9505      0.00    -0.15       0.00     0.35
    37  20.0573      0.00     0.24       0.00    -0.07
    38  20.0575      0.00     0.13       0.00    -0.34
    39  20.0577      0.00    -0.14       0.00    -0.26

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.

03SO317    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.648    39.649    39.648
ecceobj         0.278     0.278     0.278
incobj          6.547     6.547     6.547
qmin           27.954    27.950    27.948
qmax           51.672    51.639    51.647
amean          39.455    39.455    39.455
amin           38.945    38.956    38.944
amax           40.042    40.076    40.036
emean           0.275     0.275     0.275
emin            0.259     0.259     0.259
emax            0.292     0.291     0.291
imean           7.152     7.158     7.155
imin            6.453     6.453     6.453
imax            7.876     7.872     7.867
excite_mean     0.302     0.302     0.302
fracstop        1.000     1.000     1.000
cjmean          2.947     2.947     2.947

libcent 0       179.6     180.3     179.9
libamp  0        99.2      99.4      99.2
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       182.2     182.6     182.7
kozaiamp        180.0     180.0     180.0