Orbit Fit and Astrometric record for 14YE92

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: 14YE92    
# Created Thu Dec  9 02:13:06 2021
# Orbit generated from Bernstein formalism
# Fitting     19 observations of     19
# Arc:   3.84y
# First observation: 2014/12/17
#  Last observation: 2018/10/18
Preliminary a, adot, b, bdot, g, gdot:
  -0.000855   0.028884   0.000082   0.001122   0.025476   0.000000
# Chi-squared of fit:     5.54 DOF:     32 RMS:  0.10
# Min/Max residuals:    -0.23    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.747628E-05  2.751022E-02  5.296781E-07  1.118895E-03  2.462394E-02 -7.194610E-03
# Covariance matrix:
  6.0265E-13 -4.5592E-13 -5.3377E-14  3.9617E-16 -2.8446E-13 -2.8626E-12
 -4.5592E-13  6.4917E-13  8.7063E-15 -6.4796E-15  1.0499E-13  4.6396E-12
 -5.3377E-14  8.7063E-15  2.2263E-13 -7.7011E-14  6.7788E-14  5.4626E-14
  3.9617E-16 -6.4796E-15 -7.7011E-14  4.5400E-14  3.9322E-15 -5.0715E-14
 -2.8446E-13  1.0499E-13  6.7788E-14  3.9322E-15  3.2076E-13  7.5058E-13
 -2.8626E-12  4.6396E-12  5.4626E-14 -5.0715E-14  7.5058E-13  3.5653E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -27.041012    9.580311   -0.950597   -0.114469   -0.224703  2457008.643618
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:          342.77298 +/-     0.010
Argument of Peri:      321.44188 +/-     0.030
Long of Asc Node:       94.46923 +/-     0.001
Inclination:            27.02830 +/-     0.000
Eccentricity:         0.43551527 +/-    0.0002
Semi-Major Axis:     65.77806338 +/-    0.0154
Time of Perihelion: 2466325.0469 +/-       4.6
Perihelion:          37.13071253 +/-    0.0151
Aphelion:            94.42541422 +/-    0.0254
Period (y)              533.4944 +/-      0.19
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.75444509 +/-    0.0008
Ecliptic Y            7.00093759 +/-    0.0002
Ecliptic Z          -18.46289532 +/-    0.0004
Ecliptic XDOT        -0.00115993 +/-    0.0000
Ecliptic YDOT         0.00290179 +/-    0.0000
Ecliptic ZDOT         0.00047458 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.84448524 +/-    0.0007
Geocenter to KBO     40.61087773 +/-    0.0009
# Hcoef:  7.44

The following table shows the complete astrometric record for 14YE92. 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 (14YE92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  17.14284  01 19 21.032  -20 59 11.47  24.0r 14YE92    W84  C~55TQ      
2014 12  23.09313  01 19 13.077  -20 55 40.00  23.6r 14YE92    W84  C~55TQ      
2015 08  17.40599  01 33 08.833  -19 43 52.09  23.7r 14YE92    W84  C~55TQ      
2015 09  04.35407  01 32 22.511  -19 56 53.09  21.9z 14YE92    W84  C~55TQ      
2015 10  07.23060  01 30 05.143  -20 17 00.14  24.1g 14YE92    W84  C~55TQ      
2015 10  07.23199  01 30 05.125  -20 16 59.91  22.9i 14YE92    W84  C~55TQ      
2015 10  07.23338  01 30 05.129  -20 16 59.86  23.4r 14YE92    W84  C~55TQ      
2015 10  18.24625  01 29 11.350  -20 21 27.86  22.9r 14YE92    W84  C~55TQ      
2015 11  07.14852  01 27 36.174  -20 25 25.91  23.6r 14YE92    W84  C~55TQ      
2015 11  08.18350  01 27 31.511  -20 25 28.84  24.5g 14YE92    W84  C~55TQ      
2016 10  05.26710  01 36 18.995  -19 29 57.28  23.2i 14YE92    W84  C~55TQ      
2016 10  05.26847  01 36 18.982  -19 29 57.35  23.8r 14YE92    W84  C~55TQ      
2016 10  05.26985  01 36 18.985  -19 29 57.52  24.5g 14YE92    W84  C~55TQ      
2017 11  27.06623  01 38 25.302  -18 50 51.30  22.8i 14YE92    W84  C~55TQ      
2017 12  08.06381  01 37 49.492  -18 47 32.36  23.9r 14YE92    W84  C~55TQ      
2017 12  08.06519  01 37 49.489  -18 47 32.32  24.0g 14YE92    W84  C~55TQ      
2018 10  01.29096  01 48 59.102  -17 50 25.69  23.0z 14YE92    W84  C~55TQ      
2018 10  18.30397  01 47 37.394  -17 58 29.50  23.4r 14YE92    W84  C~55TQ      
2018 10  18.30896  01 47 37.365  -17 58 29.99  24.3g 14YE92    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     0.04       0.00     0.04
     2   0.0163    -12.31     0.00     238.72     0.16
     3   0.6660  12468.54    -0.05    -922.20    -0.14
     4   0.7152  11535.56    -0.15   -1338.04    -0.17
     5   0.8052   9262.10    -0.04   -1579.29    -0.23
     6   0.8052   9261.98    -0.06   -1578.97     0.08
     7   0.8052   9262.05     0.12   -1578.95     0.09
     8   0.8353   8462.74     0.05   -1491.50     0.05
     9   0.8898   7151.37    -0.06   -1126.63     0.00
    10   0.8927   7090.90     0.03   -1100.97    -0.06
    11   1.8018  15260.87     0.10   -1359.76     0.10
    12   1.8018  15260.67     0.01   -1359.74     0.11
    13   1.8019  15260.64     0.07   -1359.91    -0.07
    14   2.9457  17923.57     0.03     -49.66     0.05
    15   2.9758  17554.20    -0.06     356.33     0.04
    16   2.9758  17554.18    -0.04     356.39     0.04
    17   3.7896  27731.88     0.03    -904.00     0.06
    18   3.8362  26451.80     0.10    -798.79     0.08
    19   3.8362  26451.20    -0.13    -799.04    -0.23

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.

14YE92    quality flag:2

Type:       SCATNEAR13:4EEEEEE  SCATNEAR

axisobj        66.784    66.824    66.745
ecceobj         0.442     0.443     0.442
incobj         27.038    27.038    27.038
qmin           35.462    36.248    35.692
qmax           98.078    97.600    98.197
amean          66.028    66.062    66.054
amin           65.136    65.190    65.130
amax           67.193    67.261    67.259
emean           0.439     0.437     0.439
emin            0.422     0.427     0.420
emax            0.463     0.451     0.460
imean          25.271    25.423    25.331
imin           24.159    25.030    24.437
imax           26.025    25.728    26.189
excite_mean     0.613     0.613     0.613
fracstop        1.000     1.000     1.000
cjmean          2.862     2.863     2.862

libcent 0      -180.0     178.0    -180.0
libamp  0      -180.0     155.8    -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       178.4     157.3     173.3
kozaiamp        180.0     180.0     180.0