Orbit Fit and Astrometric record for 14YH92

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: 14YH92    
# Created Sat Dec  4 02:13:13 2021
# Orbit generated from Bernstein formalism
# Fitting     13 observations of     13
# Arc:   3.93y
# First observation: 2014/12/23
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
  -0.000019   0.026816  -0.000071   0.006979   0.027373   0.000000
# Chi-squared of fit:     5.50 DOF:     20 RMS:  0.11
# Min/Max residuals:    -0.20    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.666590E-05  2.639337E-02  3.320364E-06  6.813893E-03  2.656084E-02 -2.560240E-03
# Covariance matrix:
  3.0488E-13 -2.2273E-13  1.4656E-14 -3.3479E-14 -8.4182E-14 -1.3923E-12
 -2.2273E-13  1.1774E-12 -1.0818E-13  2.0888E-13 -1.7876E-13  1.1398E-11
  1.4656E-14 -1.0818E-13  2.7006E-13 -1.2138E-13  8.6485E-15 -1.1222E-12
 -3.3479E-14  2.0888E-13 -1.2138E-13  1.1016E-13  1.0062E-16  2.1884E-12
 -8.4182E-14 -1.7876E-13  8.6485E-15  1.0062E-16  3.6576E-13 -1.4033E-12
 -1.3923E-12  1.1398E-11 -1.1222E-12  2.1884E-12 -1.4033E-12  1.1760E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.342007   19.205787   -0.932343   -0.137716   -0.278588  2457014.580398
# Heliocentric elements and errors
Epoch:              2457010.5000  =  2014/12/19
Mean Anomaly:          288.72026 +/-     0.082
Argument of Peri:       17.42734 +/-     0.128
Long of Asc Node:       79.22825 +/-     0.001
Inclination:            29.92245 +/-     0.000
Eccentricity:         0.07309667 +/-    0.0004
Semi-Major Axis:     38.65390397 +/-    0.0039
Time of Perihelion: 2474390.5912 +/-      19.8
Perihelion:          35.82843244 +/-    0.0151
Aphelion:            41.47937550 +/-    0.0153
Period (y)              240.3246 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.84590012 +/-    0.0007
Ecliptic Y           12.08335801 +/-    0.0003
Ecliptic Z          -16.70606636 +/-    0.0004
Ecliptic XDOT        -0.00082803 +/-    0.0000
Ecliptic YDOT         0.00258871 +/-    0.0000
Ecliptic ZDOT         0.00074663 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.93760072 +/-    0.0006
Geocenter to KBO     37.64941588 +/-    0.0009
# Hcoef:  8.07

The following table shows the complete astrometric record for 14YH92. 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 (14YH92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  23.07962  01 51 21.998  -16 50 55.64  23.9r 14YH92    W84  C~55TR      
2014 12  24.14669  01 51 19.767  -16 50 18.10  24.5r 14YH92    W84  C~55TR      
2015 01  12.09103  01 50 59.205  -16 36 48.81  23.2i 14YH92    W84  C~55TR      
2015 01  12.09242  01 50 59.208  -16 36 48.69  23.9r 14YH92    W84  C~55TR      
2015 01  16.08166  01 50 59.701  -16 33 28.71  23.9r 14YH92    W84  C~55TR      
2016 09  30.24057  02 08 05.082  -14 49 15.72  22.8i 14YH92    W84  C~55TR      
2016 09  30.24194  02 08 05.061  -14 49 16.07  23.7r 14YH92    W84  C~55TR      
2016 10  02.23745  02 07 55.511  -14 50 26.06  23.0i 14YH92    W84  C~55TR      
2016 10  02.23883  02 07 55.485  -14 50 26.24  23.9r 14YH92    W84  C~55TR      
2016 10  02.24020  02 07 55.491  -14 50 26.12  24.5g 14YH92    W84  C~55TR      
2017 12  14.07451  02 07 09.450  -14 00 26.30  24.2r 14YH92    W84  C~55TR      
2017 12  22.14266  02 06 45.431  -13 56 52.76  24.1r 14YH92    W84  C~55TR      
2018 11  29.22351  02 13 15.219  -13 04 22.79  24.3r 14YH92    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    -0.20       0.00     0.15
     2   0.0029    -14.73     0.05      47.10    -0.13
     3   0.0548     31.00     0.01     907.40     0.01
     4   0.0548     31.09     0.07     907.49     0.04
     5   0.0657    116.01     0.08    1088.69     0.01
     6   1.7718  16220.89     0.14     870.16     0.22
     7   1.7718  16220.47    -0.17     869.97     0.03
     8   1.7773  16064.51     0.13     862.97    -0.16
     9   1.7773  16064.09    -0.18     862.96    -0.17
    10   1.7773  16064.22     0.05     863.03    -0.09
    11   2.9760  16689.19     0.12    3883.61     0.13
    12   2.9981  16456.24    -0.05    4222.52    -0.03
    13   3.9347  22995.90    -0.03    4760.07     0.01

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.

14YH92    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.970    38.983    38.957
ecceobj         0.073     0.072     0.073
incobj         29.923    29.923    29.923
qmin           35.208    35.156    35.184
qmax           42.449    42.565    42.457
amean          38.729    38.744    38.715
amin           38.441    38.453    38.422
amax           39.044    39.062    39.022
emean           0.074     0.076     0.075
emin            0.061     0.062     0.061
emax            0.088     0.090     0.088
imean          28.265    28.252    28.264
imin           27.777    27.762    27.774
imax           28.814    28.816    28.827
excite_mean     0.479     0.479     0.479
fracstop        1.000     1.000     1.000
cjmean          2.771     2.771     2.771

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       171.5     171.2     171.4
kozaiamp        179.9     180.0     179.9