Orbit Fit and Astrometric record for 14YB92

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: 14YB92    
# Created Mon Dec  6 02:13:08 2021
# Orbit generated from Bernstein formalism
# Fitting     17 observations of     17
# Arc:   3.84y
# First observation: 2014/12/16
#  Last observation: 2018/10/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000340   0.035665  -0.000032   0.004784   0.033304   0.000000
# Chi-squared of fit:     7.23 DOF:     28 RMS:  0.12
# Min/Max residuals:    -0.30    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.690546E-05  3.462680E-02  2.406460E-06  4.666147E-03  3.217874E-02 -4.118017E-03
# Covariance matrix:
  1.9881E-13 -1.6957E-13  3.0845E-15 -1.2180E-14 -5.1326E-14 -8.1002E-13
 -1.6957E-13  5.1270E-13 -1.1548E-14  3.2495E-14 -5.7373E-14  2.9911E-12
  3.0845E-15 -1.1548E-14  1.6411E-13 -5.5733E-14 -1.2462E-15 -7.6246E-14
 -1.2180E-14  3.2495E-14 -5.5733E-14  4.2490E-14  3.5001E-14  2.5665E-13
 -5.1326E-14 -5.7373E-14 -1.2462E-15  3.5001E-14  5.9343E-13  4.2284E-13
 -8.1002E-13  2.9911E-12 -7.6246E-14  2.5665E-13  4.2284E-13  1.9882E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -30.197330   26.163113   -0.830338   -0.265034   -0.455824  2457007.684698
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:          248.28989 +/-     0.055
Argument of Peri:       46.62531 +/-     0.046
Long of Asc Node:      101.07437 +/-     0.001
Inclination:            30.79744 +/-     0.000
Eccentricity:         0.10277797 +/-    0.0001
Semi-Major Axis:     30.14009216 +/-    0.0029
Time of Perihelion: 2475754.9902 +/-       8.9
Perihelion:          27.04235464 +/-    0.0044
Aphelion:            33.23782969 +/-    0.0048
Period (y)              165.4722 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.21151486 +/-    0.0006
Ecliptic Y           12.82219805 +/-    0.0003
Ecliptic Z          -15.63080949 +/-    0.0004
Ecliptic XDOT        -0.00139568 +/-    0.0000
Ecliptic YDOT         0.00259367 +/-    0.0000
Ecliptic ZDOT         0.00051946 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.54248595 +/-    0.0005
Geocenter to KBO     31.07642082 +/-    0.0007
# Hcoef:  8.49

The following table shows the complete astrometric record for 14YB92. 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 (14YB92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  16.18392  02 21 17.460  -18 03 08.19  23.3r 14YB92    W84  C~55TQ      
2014 12  16.18527  02 21 17.451  -18 03 08.23  23.5i 14YB92    W84  C~55TQ      
2014 12  16.19078  02 21 17.425  -18 03 07.78  23.5r 14YB92    W84  C~55TQ      
2014 12  23.10167  02 20 51.639  -17 58 56.45  23.4r 14YB92    W84  C~55TQ      
2014 12  23.10304  02 20 51.654  -17 58 56.03  23.4i 14YB92    W84  C~55TQ      
2014 12  24.16197  02 20 48.129  -17 58 12.93  23.9r 14YB92    W84  C~55TQ      
2014 12  24.16332  02 20 48.143  -17 58 12.83  24.0g 14YB92    W84  C~55TQ      
2015 11  08.30154  02 32 11.001  -17 08 09.48  23.4i 14YB92    W84  C~55TQ      
2015 11  15.28381  02 31 26.051  -17 09 23.16  23.6i 14YB92    W84  C~55TQ      
2015 12  15.17917  02 28 40.410  -17 03 38.49  23.5r 14YB92    W84  C~55TQ      
2016 09  10.28106  02 44 47.261  -15 26 09.83  23.8r 14YB92    W84  C~55TQ      
2016 11  03.29855  02 39 58.879  -16 04 13.09  22.8r 14YB92    W84  C~55TQ      
2017 11  01.23828  02 47 32.402  -14 59 14.45  22.9z 14YB92    W84  C~55TQ      
2018 01  16.10654  02 41 32.156  -14 36 11.07  23.2i 14YB92    W84  C~55TQ      
2018 10  19.34102  02 56 12.844  -13 46 56.80  24.4g 14YB92    W84  C~55TQ      
2018 10  20.32866  02 56 06.823  -13 47 32.73  23.1i 14YB92    W84  C~55TQ      
2018 10  20.34112  02 56 06.733  -13 47 33.14  22.9r 14YB92    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    -0.02
     2   0.0000     -0.13    -0.05       0.01    -0.08
     3   0.0000     -0.31     0.01       0.57     0.18
     4   0.0189   -246.95    -0.16     371.55    -0.21
     5   0.0189   -246.59     0.24     371.86     0.02
     6   0.0218   -277.06    -0.14     430.68     0.10
     7   0.0218   -276.83     0.12     430.69     0.04
     8   0.8956   9903.28    -0.02    -523.75     0.12
     9   0.9147   9279.59    -0.02    -341.22    -0.08
    10   0.9966   7218.98    -0.03     894.72    -0.30
    11   1.7361  22404.51     0.07     789.87     0.10
    12   1.8840  17630.64    -0.02     360.81     0.28
    13   2.8776  25281.94     0.03    1305.68    -0.04
    14   3.0853  21003.02    -0.02    4691.03    -0.06
    15   3.8416  34139.18     0.04    2177.66     0.01
    16   3.8443  34041.87     0.05    2181.23    -0.08
    17   3.8444  34040.47    -0.10    2181.40     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.

14YB92    quality flag:3

Type:            1:1       1:1       1:1

axisobj        30.332    30.341    30.324
ecceobj         0.097     0.097     0.097
incobj         30.810    30.810    30.810
qmin           26.761    26.771    26.772
qmax           33.700    33.626    33.608
amean          30.109    30.109    30.109
amin           29.823    29.823    29.836
amax           30.415    30.434    30.405
emean           0.081     0.081     0.081
emin            0.054     0.054     0.054
emax            0.108     0.109     0.108
imean          29.279    29.279    29.279
imin           29.061    29.069    29.044
imax           29.528    29.513    29.526
excite_mean     0.496     0.496     0.496
fracstop        1.000     1.000     1.000
cjmean          2.740     2.740     2.740

libcent 0        60.4      60.6      60.1
libamp  0        18.0      19.6      16.6
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       174.6     174.7     174.3
kozaiamp        180.0     180.0     180.0