Orbit Fit and Astrometric record for 14YK92

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: 14YK92    
# Created Sat Dec  4 02:13:13 2021
# Orbit generated from Bernstein formalism
# Fitting     14 observations of     14
# Arc:   1.15y
# First observation: 2013/12/24
#  Last observation: 2015/02/16
Preliminary a, adot, b, bdot, g, gdot:
   0.000009   0.026213   0.000000  -0.010628   0.027036   0.000000
# Chi-squared of fit:     3.17 DOF:     22 RMS:  0.08
# Min/Max residuals:    -0.16    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.538490E-05  2.624738E-02 -6.017325E-06 -1.062901E-02  2.697440E-02  1.155269E-03
# Covariance matrix:
  1.4056E-12  7.0778E-12 -6.6548E-14 -3.3333E-12  7.9064E-12  3.2187E-10
  7.0778E-12  9.1956E-11 -7.5566E-13 -3.9143E-11  9.3180E-11  3.7684E-09
 -6.6548E-14 -7.5566E-13  7.4905E-13 -3.6742E-13 -7.4805E-13 -3.1908E-11
 -3.3333E-12 -3.9143E-11 -3.6742E-13  1.7551E-11 -4.0001E-11 -1.6170E-09
  7.9064E-12  9.3180E-11 -7.4805E-13 -4.0001E-11  9.5535E-11  3.8403E-09
  3.2187E-10  3.7684E-09 -3.1908E-11 -1.6170E-09  3.8403E-09  1.5598E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -52.741462   89.151607   -0.055912   -0.779632   -0.593217  2456650.826638
# Heliocentric elements and errors
Epoch:              2456650.5000  =  2013/12/24
Mean Anomaly:           28.20411 +/-     9.091
Argument of Peri:      221.33197 +/-    10.692
Long of Asc Node:      206.53818 +/-     0.019
Inclination:            54.78416 +/-     0.004
Eccentricity:         0.06716180 +/-    0.0077
Semi-Major Axis:     39.99806410 +/-    0.0213
Time of Perihelion: 2449411.6969 +/-    2333.2
Perihelion:          37.31172227 +/-    0.3069
Aphelion:            42.68440594 +/-    0.3071
Period (y)              252.9686 +/-      0.20
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            0.28940861 +/-    0.0002
Ecliptic Y           23.42401168 +/-    0.0081
Ecliptic Z          -29.50637864 +/-    0.0107
Ecliptic XDOT        -0.00268152 +/-    0.0000
Ecliptic YDOT        -0.00075037 +/-    0.0000
Ecliptic ZDOT        -0.00074632 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.67485184 +/-    0.0098
Geocenter to KBO     37.07218107 +/-    0.0134
# Hcoef:  7.04

The following table shows the complete astrometric record for 14YK92. 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 (14YK92) followed by the observatory code and reference code for the source of the astrometry.

2013 12  24.32586  05 57 38.643  -29 18 14.06  22.7z 14YK92    W84  C~55TR      
2014 01  05.29848  05 56 24.543  -29 16 58.74  23.1g 14YK92    W84  C~55TR      
2014 12  23.334051 06 04 44.29   -29 53 29.8   23.8g 14YK92    W84  C~55TR      
2014 12  24.296377 06 04 38.20   -29 53 33.7   22.9r 14YK92    W84  C~55TR      
2014 12  24.297778 06 04 38.21   -29 53 33.6   22.4i 14YK92    W84  C~55TR      
2014 12  26.263866 06 04 25.78   -29 53 37.8   23.2g 14YK92    W84  C~55TR      
2014 12  26.265231 06 04 25.78   -29 53 37.7   22.5r 14YK92    W84  C~55TR      
2015 01  20.189641 06 01 57.03   -29 47 00.1   22.3i 14YK92    W84  C~55TR      
2015 01  31.09000  06 01 02.737  -29 40 04.74  23.4z 14YK92    W84  C~55TR      
2015 02  10.18487  06 00 21.576  -29 31 52.09  22.7z 14YK92    W84  C~55TR      
2015 02  10.195984 06 00 21.54   -29 31 51.8   22.7i 14YK92    W84  C~55TR      
2015 02  11.193796 06 00 18.01   -29 30 58.1   22.6z 14YK92    W84  C~55TR      
2015 02  16.181412 06 00 01.94   -29 26 18.4   22.8r 14YK92    W84  C~55TR      
2015 02  16.182789 06 00 01.93   -29 26 18.3   22.6i 14YK92    W84  C~55TR      

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    -0.04
     2   0.0328   -968.95     0.01      80.59     0.07
     3   0.9966   5522.05    -0.09   -2195.87    -0.15
     4   0.9992   5442.73    -0.16   -2198.02    -0.06
     5   0.9992   5442.86     0.09   -2197.93     0.04
     6   1.0046   5281.05     0.01   -2198.61    -0.03
     7   1.0046   5281.05     0.13   -2198.51     0.06
     8   1.0729   3352.38    -0.05   -1764.46    -0.06
     9   1.1027   2651.28    -0.16   -1338.41     0.04
    10   1.1303   2120.96     0.02    -838.59     0.20
    11   1.1304   2120.49     0.07    -838.29    -0.10
    12   1.1331   2075.08     0.06    -784.02    -0.01
    13   1.1468   1868.63     0.07    -501.77     0.01
    14   1.1468   1868.50    -0.01    -501.67     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.

14YK92    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        39.953    40.150    39.868
ecceobj         0.067     0.096     0.052
incobj         54.700    54.715    54.686
qmin           36.894    32.137    37.279
qmax           42.913    48.232    42.298
amean          39.805    39.972    39.709
amin           39.513    39.627    39.398
amax           40.110    40.360    40.018
emean           0.062     0.151     0.049
emin            0.052     0.073     0.038
emax            0.070     0.195     0.058
imean          55.104    54.812    55.084
imin           54.892    54.363    54.878
imax           55.314    55.305    55.297
excite_mean     0.823     0.832     0.821
fracstop        1.000     1.000     1.000
cjmean          2.070     2.066     2.072

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       180.7     205.1     191.5
kozaiamp        180.0     180.0     179.9