Orbit Fit and Astrometric record for 14YA92

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: 14YA92    
# Created Sat Nov 27 02:13:14 2021
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:   2.99y
# First observation: 2014/12/16
#  Last observation: 2017/12/14
Preliminary a, adot, b, bdot, g, gdot:
   0.000005   0.024287  -0.000104   0.009196   0.026281   0.000000
# Chi-squared of fit:     4.94 DOF:     16 RMS:  0.12
# Min/Max residuals:    -0.33    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.464543E-05  2.410431E-02  5.066139E-06  9.072406E-03  2.585085E-02 -1.196645E-03
# Covariance matrix:
  3.7751E-13 -3.9667E-13  3.2667E-14 -9.1772E-14 -9.0381E-14 -3.4947E-12
 -3.9667E-13  1.6090E-12 -1.5689E-13  4.9778E-13  2.4491E-13  1.9779E-11
  3.2667E-14 -1.5689E-13  3.5328E-13 -1.9773E-13 -9.3577E-14 -2.1945E-12
 -9.1772E-14  4.9778E-13 -1.9773E-13  2.6954E-13  1.5625E-13  6.6661E-12
 -9.0381E-14  2.4491E-13 -9.3577E-14  1.5625E-13  6.1258E-13  4.4098E-12
 -3.4947E-12  1.9779E-11 -2.1945E-12  6.6661E-12  4.4098E-12  2.6108E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -27.973644   27.859864   -0.814319   -0.258602   -0.487330  2457007.680348
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:          241.96587 +/-     0.557
Argument of Peri:       65.74668 +/-     0.554
Long of Asc Node:       79.23718 +/-     0.001
Inclination:            34.28866 +/-     0.000
Eccentricity:         0.03057288 +/-    0.0006
Semi-Major Axis:     38.59672614 +/-    0.0046
Time of Perihelion: 2485716.8492 +/-     135.5
Perihelion:          37.41671316 +/-    0.0218
Aphelion:            39.77673912 +/-    0.0219
Period (y)              239.7916 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.30824258 +/-    0.0009
Ecliptic Y           16.94433985 +/-    0.0005
Ecliptic Z          -18.14496096 +/-    0.0005
Ecliptic XDOT        -0.00089755 +/-    0.0000
Ecliptic YDOT         0.00241015 +/-    0.0000
Ecliptic ZDOT         0.00090814 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.17830815 +/-    0.0008
Geocenter to KBO     38.68345346 +/-    0.0012
# Hcoef:  7.84

The following table shows the complete astrometric record for 14YA92. 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 (14YA92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  16.17957  02 23 36.404  -15 26 16.01  23.9r 14YA92    W84  C~55TQ      
2014 12  20.17285  02 23 23.075  -15 24 30.25  23.9r 14YA92    W84  C~55TQ      
2015 01  14.09508  02 22 32.581  -15 08 44.73  23.8r 14YA92    W84  C~55TQ      
2015 01  28.05640  02 22 31.510  -14 57 00.41  23.6z 14YA92    W84  C~55TQ      
2015 12  14.18137  02 28 16.182  -14 27 43.65  23.9g 14YA92    W84  C~55TQ      
2016 09  23.32842  02 39 17.727  -13 10 10.09  23.4r 14YA92    W84  C~55TQ      
2016 09  25.25649  02 39 10.267  -13 11 22.23  24.7g 14YA92    W84  C~55TQ      
2016 11  27.11581  02 33 56.746  -13 31 19.91  23.6r 14YA92    W84  C~55TQ      
2017 10  30.30422  02 40 51.671  -12 27 08.21  24.4g 14YA92    W84  C~55TQ      
2017 12  14.08963  02 37 11.608  -12 27 24.93  23.8r 14YA92    W84  C~55TQ      
2017 12  14.09100  02 37 11.614  -12 27 25.34  24.2g 14YA92    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     0.02       0.00     0.10
     2   0.0109   -140.89    -0.01     168.77     0.07
     3   0.0792   -477.07    -0.16    1315.45    -0.13
     4   0.1174   -235.36     0.13    1977.22    -0.13
     5   0.9938   5062.40     0.06    1777.98     0.09
     6   1.7718  15770.63    -0.02    2479.86     0.11
     7   1.7771  15641.66     0.08    2454.47    -0.05
     8   1.9492  10932.92    -0.13    3074.04    -0.03
     9   2.8723  18041.75     0.06    4351.52     0.17
    10   2.9950  15034.82    -0.01    5562.28     0.13
    11   2.9950  15034.75    -0.02    5561.87    -0.33

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.

14YA92    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.903    38.918    38.889
ecceobj         0.024     0.024     0.025
incobj         34.284    34.283    34.284
qmin           37.108    37.152    37.069
qmax           40.397    40.343    40.389
amean          38.672    38.688    38.653
amin           38.396    38.414    38.370
amax           38.947    38.969    38.938
emean           0.027     0.026     0.026
emin            0.018     0.017     0.013
emax            0.038     0.036     0.038
imean          32.760    32.762    32.763
imin           32.411    32.407    32.412
imax           33.136    33.132    33.139
excite_mean     0.542     0.542     0.542
fracstop        1.000     1.000     1.000
cjmean          2.684     2.685     2.684

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       176.6     173.5     171.9
kozaiamp        179.9     180.0     179.9