Orbit Fit and Astrometric record for 11CY119

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: 11CY119   
# Created Tue Nov 30 02:11:12 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     20 observations of     20
# Arc:   8.16y
# First observation: 2011/02/04
#  Last observation: 2019/04/05
# Chi-squared of fit:    16.07 DOF:     34 RMS:  0.16
# Min/Max residuals:    -0.34    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.576285E-05  2.575249E-02  6.748971E-06  9.883554E-03  2.465290E-02 -4.020834E-03
# Covariance matrix:
  2.2002E-13 -8.9486E-14  2.7184E-14 -3.3271E-14  1.5032E-13 -4.0920E-13
 -8.9486E-14  9.9155E-14 -2.9696E-14  3.6623E-14  2.7381E-14  4.4911E-13
  2.7184E-14 -2.9696E-14  1.3637E-13 -3.9080E-14  9.9042E-15 -1.6271E-13
 -3.3271E-14  3.6623E-14 -3.9080E-14  2.8695E-14 -1.1308E-14  2.0024E-13
  1.5032E-13  2.7381E-14  9.9042E-15 -1.1308E-14  6.1719E-13 -1.4293E-13
 -4.0920E-13  4.4911E-13 -1.6271E-13  2.0024E-13 -1.4293E-13  2.4575E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.328205  163.154021    0.462605   -0.096368   -0.868963  2455596.961606
# Heliocentric elements and errors
Epoch:              2455596.5000  =  2011/02/04
Mean Anomaly:          345.11352 +/-     0.008
Argument of Peri:       16.64350 +/-     0.015
Long of Asc Node:      178.19481 +/-     0.000
Inclination:            21.87583 +/-     0.000
Eccentricity:         0.36665982 +/-    0.0001
Semi-Major Axis:     62.50455417 +/-    0.0135
Time of Perihelion: 2463060.2232 +/-      56.3
Perihelion:          39.58664553 +/-    0.0109
Aphelion:            85.42246280 +/-    0.0197
Period (y)              494.1692 +/-      0.16
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.28473286 +/-    0.0012
Ecliptic Y           12.37860098 +/-    0.0004
Ecliptic Z           -4.47076256 +/-    0.0001
Ecliptic XDOT        -0.00052096 +/-    0.0000
Ecliptic YDOT        -0.00282472 +/-    0.0000
Ecliptic ZDOT         0.00114017 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.43086854 +/-    0.0012
Geocenter to KBO     40.56331622 +/-    0.0013
# Hcoef:  6.70

The following table shows the complete astrometric record for 11CY119. 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 (11CY119) followed by the observatory code and reference code for the source of the astrometry.

2011 02  04.46084  10 48 12.701  +00 46 13.36  22.9w 11CY119   F51  C~1w3n      
2011 02  04.47509  10 48 12.653  +00 46 13.93  23.3w 11CY119   F51  C~1w3n      
2011 02  05.44897  10 48 08.811  +00 46 38.41  23.3w 11CY119   F51  C~1w3n      
2011 02  05.49209  10 48 08.659  +00 46 39.71  23.1w 11CY119   F51  C~1w3n      
2011 03  30.36107  10 44 25.420  +01 14 45.03  23.5w 11CY119   F51  C~1w3n      
2011 03  30.37435  10 44 25.386  +01 14 45.80  23.5w 11CY119   F51  C~1w3n      
2011 03  30.40208  10 44 25.284  +01 14 47.02  23.2w 11CY119   F51  C~1w3n      
2012 01  19.49067  10 55 27.875  +00 38 13.25  23.0w 11CY119   F51  C~1w3n      
2012 01  19.50473  10 55 27.850  +00 38 13.59  23.3w 11CY119   F51  C~1w3n      
2012 01  19.51880  10 55 27.816  +00 38 13.83  23.4w 11CY119   F51  C~1w3n      
2013 03  05.41397  10 58 52.666  +00 56 25.50  22.8w 11CY119   F51  C~1w3n      
2013 03  05.42893  10 58 52.584  +00 56 26.33  22.7w 11CY119   F51  C~1w3n      
2013 03  05.44386  10 58 52.498  +00 56 26.67  22.8w 11CY119   F51  C~1w3n      
2013 03  05.45883  10 58 52.454  +00 56 27.04  22.9w 11CY119   F51  C~1w3n      
2014 02  28.41368  11 05 44.016  +00 51 05.27  22.4w 11CY119   F51  C~1w3n      
2014 02  28.42622  11 05 43.978  +00 51 05.81  22.7w 11CY119   F51  C~1w3n      
2014 02  28.43862  11 05 43.892  +00 51 06.19  22.7w 11CY119   F51  C~1w3n      
2014 03  05.50421  11 05 21.452  +00 53 56.03  22.7w 11CY119   F51  C~1w3n      
2019 04  05.192230 11 36 11.787  +00 58 27.75  22.8G 11CY119   G37  C~34bo      
2019 04  05.266230 11 36 11.480  +00 58 30.00        11CY119   G37  C~34bo      

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     0.11       0.00    -0.14
     2   0.0000      0.00     0.24       0.00     0.08
     3   0.0027      0.00    -0.29       0.00    -0.01
     4   0.0028      0.00     0.03       0.00     0.20
     5   0.1476      0.00    -0.20       0.00    -0.34
     6   0.1476      0.00     0.05       0.00    -0.01
     7   0.1477      0.00     0.10       0.00     0.28
     8   0.9556      0.00    -0.21       0.00    -0.04
     9   0.9556      0.00     0.04       0.00     0.06
    10   0.9557      0.00     0.15       0.00     0.06
    11   2.0806      0.00     0.23       0.00    -0.22
    12   2.0807      0.00     0.01       0.00     0.11
    13   2.0807      0.00    -0.27       0.00    -0.06
    14   2.0808      0.00     0.09       0.00    -0.19
    15   3.0663      0.00    -0.01       0.00    -0.09
    16   3.0663      0.00     0.26       0.00     0.04
    17   3.0663      0.00    -0.19       0.00     0.01
    18   3.0802      0.00    -0.12       0.00     0.21
    19   8.1635      0.00    -0.00       0.00     0.14
    20   8.1637      0.00     0.00       0.00    -0.12

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.

11CY119    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        62.591    62.591    62.592
ecceobj         0.367     0.367     0.367
incobj         21.881    21.881    21.881
qmin           38.004    37.851    38.027
qmax           88.771    89.223    89.006
amean          62.664    62.519    62.630
amin           61.639    61.634    61.631
amax           63.845    63.897    63.861
emean           0.373     0.371     0.375
emin            0.352     0.341     0.356
emax            0.393     0.399     0.394
imean          21.083    21.060    20.974
imin           20.212    20.030    20.454
imax           21.891    22.340    21.536
excite_mean     0.518     0.517     0.518
fracstop        1.000     1.000     1.000
cjmean          2.979     2.979     2.978

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       158.4     173.5     156.5
kozaiamp        179.9     179.9     180.0