Orbit Fit and Astrometric record for 14YJ92

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: 14YJ92    
# Created Sat Dec  4 02:13:13 2021
# Orbit generated from Bernstein formalism
# Fitting     22 observations of     22
# Arc:   3.89y
# First observation: 2014/12/26
#  Last observation: 2018/11/16
Preliminary a, adot, b, bdot, g, gdot:
   0.000064   0.031482  -0.000078  -0.009272   0.029608   0.000000
# Chi-squared of fit:     9.92 DOF:     38 RMS:  0.12
# Min/Max residuals:    -0.26    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.740876E-05  3.174597E-02 -5.175464E-06 -9.385297E-03  2.887452E-02  6.619461E-03
# Covariance matrix:
  4.2584E-13 -3.2522E-13 -6.7603E-14  7.6714E-14 -1.6854E-13 -1.8097E-12
 -3.2522E-13  7.1553E-13  9.3952E-14 -2.2725E-13  1.3307E-14  4.8541E-12
 -6.7603E-14  9.3952E-14  1.9528E-13 -8.9160E-14  3.6374E-14  6.5253E-13
  7.6714E-14 -2.2725E-13 -8.9160E-14  1.0977E-13  8.3459E-15 -1.6225E-12
 -1.6854E-13  1.3307E-14  3.6374E-14  8.3459E-15  1.8156E-13  1.1558E-14
 -1.8097E-12  4.8541E-12  6.5253E-13 -1.6225E-12  1.1558E-14  3.4570E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -29.268271   12.874325   -0.970406   -0.074864   -0.133996  2457017.634108
# Heliocentric elements and errors
Epoch:              2457010.5000  =  2014/12/19
Mean Anomaly:           34.64003 +/-     0.011
Argument of Peri:      182.93526 +/-     0.014
Long of Asc Node:      134.80830 +/-     0.001
Inclination:            32.79193 +/-     0.000
Eccentricity:         0.29520209 +/-    0.0002
Semi-Major Axis:     43.53585720 +/-    0.0085
Time of Perihelion: 2446914.6041 +/-       1.0
Perihelion:          30.68398104 +/-    0.0110
Aphelion:            56.38773336 +/-    0.0143
Period (y)              287.2624 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.38230694 +/-    0.0004
Ecliptic Y            7.71316901 +/-    0.0001
Ecliptic Z          -16.93208511 +/-    0.0003
Ecliptic XDOT        -0.00056508 +/-    0.0000
Ecliptic YDOT         0.00295430 +/-    0.0000
Ecliptic ZDOT        -0.00108306 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.77798791 +/-    0.0004
Geocenter to KBO     34.63260437 +/-    0.0005
# Hcoef:  7.99

The following table shows the complete astrometric record for 14YJ92. 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 (14YJ92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  26.13333  01 34 41.206  -21 47 31.81  23.5r 14YJ92    W84  C~55TR      
2015 01  09.05771  01 34 35.737  -21 36 34.50  23.5i 14YJ92    W84  C~55TR      
2015 01  09.05909  01 34 35.760  -21 36 34.69  24.6g 14YJ92    W84  C~55TR      
2015 08  17.39770  01 51 51.141  -20 44 14.74  23.4r 14YJ92    W84  C~55TR      
2015 08  17.39907  01 51 51.125  -20 44 15.01  23.6g 14YJ92    W84  C~55TR      
2015 08  23.41040  01 51 40.038  -20 50 10.60  23.7i 14YJ92    W84  C~55TR      
2015 08  23.41179  01 51 40.030  -20 50 10.66  23.6r 14YJ92    W84  C~55TR      
2015 10  07.23753  01 48 38.658  -21 30 03.72  23.4g 14YJ92    W84  C~55TR      
2015 10  22.24717  01 47 14.751  -21 38 45.92  22.8i 14YJ92    W84  C~55TR      
2015 10  23.30976  01 47 08.717  -21 39 14.69  23.1r 14YJ92    W84  C~55TR      
2015 11  03.19162  01 46 07.593  -21 43 04.66  23.4r 14YJ92    W84  C~55TR      
2016 10  05.25277  01 56 43.241  -21 09 53.23  23.3r 14YJ92    W84  C~55TR      
2016 10  05.25413  01 56 43.231  -21 09 53.21  24.1g 14YJ92    W84  C~55TR      
2017 09  26.28230  02 05 17.008  -20 42 21.58  23.5r 14YJ92    W84  C~55TR      
2017 09  26.28366  02 05 16.989  -20 42 21.81  23.1i 14YJ92    W84  C~55TR      
2017 12  11.05157  01 58 55.152  -21 01 51.80  23.7r 14YJ92    W84  C~55TR      
2017 12  11.05295  01 58 55.153  -21 01 51.71  24.2g 14YJ92    W84  C~55TR      
2018 10  01.31753  02 12 32.135  -20 24 46.63  23.0z 14YJ92    W84  C~55TR      
2018 10  28.30486  02 10 07.801  -20 41 07.00  23.1i 14YJ92    W84  C~55TR      
2018 11  16.24432  02 08 24.155  -20 45 39.21  23.4i 14YJ92    W84  C~55TR      
2018 11  16.24569  02 08 24.139  -20 45 39.01  23.4r 14YJ92    W84  C~55TR      
2018 11  16.24705  02 08 24.137  -20 45 38.85  24.2g 14YJ92    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    -0.00       0.00     0.01
     2   0.0381    205.21    -0.06     629.09     0.19
     3   0.0381    205.42     0.12     628.79    -0.18
     4   0.6414  14655.56     0.15   -2767.95    -0.03
     5   0.6414  14655.24    -0.11   -2768.10    -0.12
     6   0.6578  14357.22    -0.00   -3018.85    -0.01
     7   0.6578  14357.09    -0.05   -3018.85     0.04
     8   0.7806  11013.37     0.15   -4052.23     0.34
     9   0.8217   9728.90    -0.04   -4009.83    -0.13
    10   0.8246   9640.43     0.02   -3998.99    -0.01
    11   0.8544   8771.32    -0.26   -3834.78    -0.26
    12   1.7772  17654.29     0.01   -5982.91     0.03
    13   1.7772  17654.17     0.01   -5982.82     0.12
    14   2.7519  24898.72     0.15   -7813.54     0.15
    15   2.7520  24898.38    -0.08   -7813.62     0.08
    16   2.9594  19535.64    -0.00   -6390.06    -0.05
    17   2.9594  19535.69     0.10   -6389.99    -0.04
    18   3.7650  30916.49    -0.01   -9766.63    -0.12
    19   3.8389  28616.62     0.06   -9671.75     0.03
    20   3.8908  27174.88    -0.09   -9224.47    -0.22
    21   3.8908  27174.78    -0.10   -9224.18     0.02
    22   3.8908  27174.83     0.04   -9224.03     0.14

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.

14YJ92    quality flag:3

Type:         7:4EEE    7:4EEE    7:4EEE
Type:         7:4EII    7:4EII    7:4EII

axisobj        43.980    44.008    43.952
ecceobj         0.302     0.302     0.301
incobj         32.750    32.750    32.749
qmin           30.292    30.278    30.294
qmax           57.668    57.642    57.748
amean          43.724    43.724    43.724
amin           43.338    43.347    43.313
amax           44.178    44.184    44.199
emean           0.254     0.258     0.237
emin            0.179     0.189     0.144
emax            0.306     0.306     0.307
imean          32.496    32.437    32.815
imin           31.158    31.179    31.143
imax           34.146    33.986    34.683
excite_mean     0.596     0.596     0.594
fracstop        1.000     1.000     1.000
cjmean          2.653     2.652     2.653

libcent 0       177.7     178.5     180.5
libamp  0        52.6      31.8      85.9
libcent 1       183.5     183.6     175.9
libamp  1        80.6      60.0     112.0
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       182.8     183.1     181.0
kozaiamp         24.7      22.8      27.7