Orbit Fit and Astrometric record for 03SS422

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: 03SS422   
# Created Fri Dec  3 02:09:46 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     41 observations of     41
# Arc:  17.14y
# First observation: 2003/09/28
#  Last observation: 2020/11/18
# Chi-squared of fit:    41.56 DOF:     76 RMS:  0.18
# Min/Max residuals:    -0.56    0.45
# Exact a, adot, b, bdot, g, gdot:
  1.940134E-05  3.300724E-02 -6.760438E-06 -9.455840E-03  2.578262E-02 -2.279814E-03
# Covariance matrix:
  1.6069E-13 -2.9787E-14 -9.3472E-15  5.7821E-15  8.2359E-14 -3.8408E-14
 -2.9787E-14  1.3747E-14  4.9859E-15 -3.6087E-15 -1.6653E-14  2.3708E-14
 -9.3472E-15  4.9859E-15  1.0885E-13 -9.6315E-15 -9.4712E-15  9.1383E-15
  5.7821E-15 -3.6087E-15 -9.6315E-15  1.9409E-15  3.8247E-15 -6.6929E-15
  8.2359E-14 -1.6653E-14 -9.4712E-15  3.8247E-15  1.8925E-13 -2.6427E-14
 -3.8408E-14  2.3708E-14  9.1383E-15 -6.6929E-15 -2.6427E-14  4.3936E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.517704  -11.134859   -0.266592   -0.093114   -0.964480  2452910.541453
# Heliocentric elements and errors
Epoch:              2452910.5000  =  2003/09/28
Mean Anomaly:          359.41569 +/-     0.000
Argument of Peri:      206.91503 +/-     0.001
Long of Asc Node:      151.09798 +/-     0.000
Inclination:            16.82669 +/-     0.000
Eccentricity:         0.78834017 +/-    0.0001
Semi-Major Axis:    186.98480684 +/-    0.0857
Time of Perihelion: 2454426.3245 +/-     641.4
Perihelion:          39.57717225 +/-    0.0252
Aphelion:           334.39244143 +/-    0.1543
Period (y)             2556.9232 +/-      1.76
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.87869760 +/-    0.0006
Ecliptic Y           -7.37695596 +/-    0.0001
Ecliptic Z           -3.72965624 +/-    0.0001
Ecliptic XDOT         0.00034077 +/-    0.0000
Ecliptic YDOT         0.00349832 +/-    0.0000
Ecliptic ZDOT        -0.00097602 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.74779144 +/-    0.0006
Geocenter to KBO     38.78590832 +/-    0.0007
# Hcoef:  7.12

The following table shows the complete astrometric record for 03SS422. 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 (03SS422) followed by the observatory code and reference code for the source of the astrometry.

2003 09  28.04071  23 27 48.15   -09 28 43.4   22.9R 03SS422   807  Cv6149      
2003 09  28.07382  23 27 48.00   -09 28 44.6   22.4I 03SS422   807  Cv6149      
2003 10  19.02175  23 26 27.68   -09 37 47.2   22.8R 03SS422   807  Cv6149      
2003 10  19.04290  23 26 27.61   -09 37 47.7   22.5I 03SS422   807  Cv6149      
2003 10  22.01285  23 26 17.91   -09 38 48.8   23.1R 03SS422   807  Cv6149      
2003 10  22.03335  23 26 17.86   -09 38 49.0   22.3I 03SS422   807  Cv6149      
2003 10  30.02502  23 25 54.53   -09 41 09.9   22.9R 03SS422   807  Cv6149      
2003 10  30.04823  23 25 54.48   -09 41 10.2   22.2I 03SS422   807  Cv6149      
2003 11  23.04710  23 25 14.24   -09 44 25.9   22.7R 03SS422   807  Cv6149      
2003 11  27.08779  23 25 12.46   -09 44 23.1   22.8R 03SS422   807  Cv6149      
2003 12  13.04162  23 25 20.81   -09 42 31.3   23.2R 03SS422   807  Cv6149      
2003 12  13.06774  23 25 20.85   -09 42 30.9   22.5I 03SS422   807  Cv6149      
2009 10  15.203048 00 14 06.44   -07 55 25.4         03SS422   645  C~4q3g      
2009 10  15.203878 00 14 06.46   -07 55 25.4         03SS422   645  C~4q3g      
2009 10  15.205536 00 14 06.44   -07 55 25.5         03SS422   645  C~4q3g      
2009 10  16.196765 00 14 02.44   -07 55 50.4         03SS422   645  C~4q3g      
2009 10  16.197594 00 14 02.45   -07 55 50.3         03SS422   645  C~4q3g      
2013 09  11.26224  00 47 48.909  -06 18 29.67  23.8g 03SS422   W84  C~553u      
2013 10  04.171956 00 46 13.26   -06 31 29.8         03SS422   W84  C~4q3g      
2013 10  04.212419 00 46 13.08   -06 31 31.0   22.8r 03SS422   W84  C~4q3g      
2013 10  04.213831 00 46 13.07   -06 31 31.1   22.5i 03SS422   W84  C~4q3g      
2014 10  14.185220 00 53 12.73   -06 15 56.2   22.3z 03SS422   W84  C~4q3g      
2014 10  14.186586 00 53 12.74   -06 15 56.3   22.7i 03SS422   W84  C~4q3g      
2016 08  24.38431  01 11 32.195  -05 06 19.39  23.0z 03SS422   W84  C~553u      
2016 08  26.36017  01 11 27.133  -05 07 25.04  23.5r 03SS422   W84  C~553u      
2016 08  31.28268  01 11 13.339  -05 10 11.81  24.3g 03SS422   W84  C~553u      
2016 10  01.220475 01 09 17.93   -05 27 57.3   22.6r 03SS422   W84  C~4q3g      
2016 10  01.22187  01 09 17.911  -05 27 57.14  23.0i 03SS422   W84  C~553u      
2016 10  01.223229 01 09 17.91   -05 27 57.1   23.5g 03SS422   W84  C~4q3g      
2016 11  05.13271  01 06 50.613  -05 43 20.83  22.7z 03SS422   W84  C~553u      
2016 11  06.21217  01 06 46.502  -05 43 40.19  22.7z 03SS422   W84  C~553u      
2017 08  28.303264 01 18 48.01   -04 47 24.8   22.7r 03SS422   W84  C~4q3g      
2017 08  28.30465  01 18 48.013  -04 47 24.79  23.1i 03SS422   W84  C~553u      
2017 08  28.306007 01 18 48.02   -04 47 24.6   23.3g 03SS422   W84  C~4q3g      
2017 09  18.31526  01 17 39.601  -04 59 27.92  23.0i 03SS422   W84  C~553u      
2017 09  18.31664  01 17 39.604  -04 59 27.87  23.1r 03SS422   W84  C~553u      
2018 10  19.27277  01 22 54.957  -04 54 31.21  22.4z 03SS422   W84  C~553u      
2018 11  06.18972  01 21 39.930  -05 01 26.53  23.2r 03SS422   W84  C~553u      
2018 11  06.19109  01 21 39.931  -05 01 26.48  24.2g 03SS422   W84  C~553u      
2020 11  17.07074  01 35 28.749  -04 21 54.95  24.0r 03SS422   807  C~5APZ      
2020 11  18.10170  01 35 25.046  -04 22 07.61  24.0r 03SS422   807  C~5APZ      

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     0.08       0.00     0.25
     2   0.0001      0.00    -0.05       0.00     0.04
     3   0.0574      0.00     0.03       0.00    -0.03
     4   0.0575      0.00     0.07       0.00    -0.07
     5   0.0656      0.00     0.04       0.00    -0.17
     6   0.0657      0.00     0.29       0.00     0.04
     7   0.0876      0.00    -0.11       0.00    -0.05
     8   0.0876      0.00     0.09       0.00     0.01
     9   0.1533      0.00     0.00       0.00     0.01
    10   0.1644      0.00    -0.09       0.00     0.15
    11   0.2081      0.00    -0.05       0.00    -0.01
    12   0.2082      0.00     0.06       0.00     0.07
    13   6.0484      0.00    -0.56       0.00    -0.43
    14   6.0484      0.00    -0.20       0.00    -0.41
    15   6.0484      0.00    -0.40       0.00    -0.46
    16   6.0511      0.00    -0.05       0.00     0.27
    17   6.0511      0.00     0.15       0.00     0.39
    18   9.9554      0.00     0.12       0.00     0.01
    19  10.0182      0.00     0.12       0.00    -0.03
    20  10.0183      0.00     0.11       0.00     0.05
    21  10.0183      0.00     0.06       0.00    -0.00
    22  11.0449      0.00     0.19       0.00     0.45
    23  11.0449      0.00     0.43       0.00     0.39
    24  12.9072      0.00    -0.08       0.00     0.01
    25  12.9126      0.00     0.07       0.00     0.08
    26  12.9261      0.00     0.05       0.00     0.06
    27  13.0108      0.00     0.10       0.00    -0.17
    28  13.0108      0.00    -0.10       0.00     0.04
    29  13.0108      0.00    -0.02       0.00     0.12
    30  13.1063      0.00     0.12       0.00    -0.11
    31  13.1093      0.00     0.08       0.00    -0.17
    32  13.9172      0.00    -0.12       0.00    -0.09
    33  13.9172      0.00    -0.02       0.00    -0.03
    34  13.9172      0.00     0.14       0.00     0.20
    35  13.9747      0.00    -0.06       0.00    -0.20
    36  13.9747      0.00     0.06       0.00    -0.10
    37  15.0588      0.00    -0.08       0.00    -0.08
    38  15.1079      0.00    -0.09       0.00    -0.05
    39  15.1079      0.00     0.01       0.00     0.02
    40  17.1390      0.00    -0.12       0.00    -0.02
    41  17.1419      0.00    -0.11       0.00     0.10

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.

03SS422    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       198.679   198.677   198.682
ecceobj         0.801     0.801     0.801
incobj         16.777    16.777    16.777
qmin           37.821    37.823    37.761
qmax          363.812   363.413   365.621
amean         191.189   191.190   191.191
amin          184.447   184.926   184.795
amax          201.742   201.520   202.601
emean           0.792     0.792     0.793
emin            0.782     0.783     0.783
emax            0.803     0.803     0.805
imean          15.736    15.730    15.623
imin           15.381    15.383    15.346
imax           16.045    16.064    15.975
excite_mean     0.838     0.838     0.837
fracstop        1.000     1.000     1.000
cjmean          3.116     3.116     3.116

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       222.4     222.3     225.9
kozaiamp         15.9      16.3      20.3