Orbit Fit and Astrometric record for 14YC92

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: 14YC92    
# Created Sat Dec  4 02:13:13 2021
# Orbit generated from Bernstein formalism
# Fitting     13 observations of     13
# Arc:   3.84y
# First observation: 2014/12/16
#  Last observation: 2018/10/18
Preliminary a, adot, b, bdot, g, gdot:
   0.000063   0.008030  -0.000012   0.000451   0.013683   0.000000
# Chi-squared of fit:     3.40 DOF:     20 RMS:  0.09
# Min/Max residuals:    -0.20    0.17
# Exact a, adot, b, bdot, g, gdot:
  8.572465E-06  8.157134E-03  6.165677E-07  4.477207E-04  1.369497E-02  4.446916E-03
# Covariance matrix:
  4.1278E-13 -3.4174E-13  3.1199E-15 -5.8815E-15 -2.0035E-13 -6.8657E-12
 -3.4174E-13  5.3691E-13  1.2593E-15  3.3921E-16  1.9618E-13  1.2842E-11
  3.1199E-15  1.2593E-15  2.8975E-13 -1.0889E-13 -5.2613E-14 -2.0073E-13
 -5.8815E-15  3.3921E-16 -1.0889E-13  6.9191E-14  8.1107E-14  3.6728E-13
 -2.0035E-13  1.9618E-13 -5.2613E-14  8.1107E-14  1.5327E-12  1.1753E-11
 -6.8657E-12  1.2842E-11 -2.0073E-13  3.6728E-13  1.1753E-11  3.7763E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -32.035886   29.166117   -0.801729   -0.302096   -0.483162  2457007.699858
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:           79.25065 +/-     0.303
Argument of Peri:      141.57604 +/-     0.121
Long of Asc Node:      113.62967 +/-     0.004
Inclination:            31.95333 +/-     0.000
Eccentricity:         0.50266043 +/-    0.0011
Semi-Major Axis:     64.16674076 +/-    0.0942
Time of Perihelion: 2415670.6607 +/-     128.9
Perihelion:          31.91265906 +/-    0.0859
Aphelion:            96.42082247 +/-    0.1587
Period (y)              514.0119 +/-      1.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           54.15534448 +/-    0.0049
Ecliptic Y           31.14572664 +/-    0.0027
Ecliptic Z          -38.73323674 +/-    0.0035
Ecliptic XDOT        -0.00009927 +/-    0.0000
Ecliptic YDOT         0.00180926 +/-    0.0000
Ecliptic ZDOT        -0.00039560 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   73.50592664 +/-    0.0042
Geocenter to KBO     73.01948492 +/-    0.0066
# Hcoef:  4.94

The following table shows the complete astrometric record for 14YC92. 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 (14YC92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  16.19908  02 34 13.985  -18 48 17.38  23.6r 14YC92    W84  C~55TQ      
2014 12  24.17436  02 33 58.462  -18 46 30.04  24.1g 14YC92    W84  C~55TQ      
2014 12  24.17712  02 33 58.458  -18 46 29.92  23.6i 14YC92    W84  C~55TQ      
2015 11  15.28654  02 37 22.098  -18 38 18.76  23.1r 14YC92    W84  C~55TQ      
2015 11  15.28792  02 37 22.089  -18 38 18.83  24.0g 14YC92    W84  C~55TQ      
2015 12  17.16110  02 35 59.510  -18 36 31.29  23.5r 14YC92    W84  C~55TQ      
2016 02  06.05231  02 35 16.854  -18 17 49.28  23.8r 14YC92    W84  C~55TQ      
2016 11  05.29491  02 39 35.165  -18 25 28.19  23.9r 14YC92    W84  C~55TQ      
2016 11  05.29767  02 39 35.155  -18 25 28.16  23.8g 14YC92    W84  C~55TQ      
2017 12  10.17947  02 39 44.058  -18 14 23.59  23.9r 14YC92    W84  C~55TQ      
2017 12  10.18085  02 39 44.055  -18 14 23.32  24.4g 14YC92    W84  C~55TQ      
2018 10  18.34272  02 43 56.123  -17 57 48.82  23.5r 14YC92    W84  C~55TQ      
2018 10  18.34410  02 43 56.143  -17 57 48.69  23.7g 14YC92    W84  C~55TQ      

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     0.17       0.00    -0.02
     2   0.0218   -165.71    -0.08     180.71    -0.10
     3   0.0218   -165.72    -0.04     180.84    -0.03
     4   0.9147   2704.86    -0.00    -429.69     0.04
     5   0.9147   2704.72    -0.09    -429.70     0.00
     6   1.0019   1653.93    -0.01     104.68     0.08
     7   1.1413   1503.51    -0.09    1371.49    -0.02
     8   1.8894   4748.89     0.08    -419.43     0.06
     9   1.8894   4748.77     0.08    -419.35     0.12
    10   2.9842   5115.06    -0.05     149.77    -0.15
    11   2.9842   5115.12     0.05     150.04     0.09
    12   3.8389   8823.22    -0.20    -282.71    -0.04
    13   3.8389   8823.54     0.17    -282.70    -0.03

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.

14YC92    quality flag:2

Type:       CENTAURS  CENTAURS  SCATNEAR

axisobj        64.821    65.104    64.546
ecceobj         0.500     0.503     0.497
incobj         31.960    31.960    31.961
qmin           29.402    29.982    31.161
qmax          105.462   101.912    98.593
amean          64.080    64.331    64.042
amin           62.431    61.532    62.656
amax           68.613    66.236    65.388
emean           0.513     0.506     0.488
emin            0.477     0.464     0.462
emax            0.545     0.539     0.513
imean          29.492    30.239    31.175
imin           27.889    28.768    30.061
imax           31.311    31.582    32.268
excite_mean     0.711     0.714     0.711
fracstop        1.000     1.000     1.000
cjmean          2.650     2.647     2.649

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       183.5     180.3     173.8
kozaiamp        179.9     180.0     180.0