Orbit Fit and Astrometric record for 14YF92

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: 14YF92    
# Created Sat Nov 27 02:13:15 2021
# Orbit generated from Bernstein formalism
# Fitting     28 observations of     28
# Arc:   3.96y
# First observation: 2014/12/17
#  Last observation: 2018/12/02
Preliminary a, adot, b, bdot, g, gdot:
  -0.000361   0.020423   0.000087  -0.005666   0.023318   0.000000
# Chi-squared of fit:     8.26 DOF:     50 RMS:  0.10
# Min/Max residuals:    -0.28    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.463271E-05  2.003581E-02 -3.857116E-06 -5.557096E-03  2.261122E-02 -2.831623E-03
# Covariance matrix:
  5.3262E-13 -3.9563E-13 -9.4472E-14  8.9202E-14 -2.5459E-13 -3.3926E-12
 -3.9563E-13  4.6471E-13  8.9133E-14 -1.1890E-13  1.5456E-13  4.7376E-12
 -9.4472E-14  8.9133E-14  2.0418E-13 -9.3125E-14  6.6829E-14  9.2947E-13
  8.9202E-14 -1.1890E-13 -9.3125E-14  7.0067E-14 -4.0781E-14 -1.3207E-12
 -2.5459E-13  1.5456E-13  6.6829E-14 -4.0781E-14  2.3511E-13  1.4127E-12
 -3.3926E-12  4.7376E-12  9.2947E-13 -1.3207E-12  1.4127E-12  5.2974E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.171504   15.834364   -0.917538   -0.155976   -0.317841  2457008.654758
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:          262.54086 +/-     0.062
Argument of Peri:      353.00083 +/-     0.051
Long of Asc Node:      138.49286 +/-     0.001
Inclination:            29.69248 +/-     0.000
Eccentricity:         0.12182901 +/-    0.0003
Semi-Major Axis:     43.25858778 +/-    0.0041
Time of Perihelion: 2485134.2099 +/-      17.6
Perihelion:          37.98843702 +/-    0.0144
Aphelion:            48.52873854 +/-    0.0147
Period (y)              284.5226 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.27281711 +/-    0.0008
Ecliptic Y           11.81103406 +/-    0.0003
Ecliptic Z          -19.50644758 +/-    0.0004
Ecliptic XDOT        -0.00124758 +/-    0.0000
Ecliptic YDOT         0.00216387 +/-    0.0000
Ecliptic ZDOT        -0.00045257 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.55121269 +/-    0.0007
Geocenter to KBO     44.22583788 +/-    0.0009
# Hcoef:  6.87

The following table shows the complete astrometric record for 14YF92. 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 (14YF92) followed by the observatory code and reference code for the source of the astrometry.

2014 12  17.15398  01 39 27.246  -17 53 38.02  24.3g 14YF92    W84  C~55TQ      
2015 01  12.08546  01 39 04.862  -17 40 54.40  24.1g 14YF92    W84  C~55TQ      
2015 08  23.40344  01 51 25.757  -17 04 28.17  23.5i 14YF92    W84  C~55TR      
2015 09  13.31735  01 50 31.540  -17 19 32.08  23.1i 14YF92    W84  C~55TR      
2015 10  07.20977  01 48 59.058  -17 34 37.39  23.2r 14YF92    W84  C~55TR      
2015 10  07.21113  01 48 59.045  -17 34 37.35  22.8i 14YF92    W84  C~55TR      
2015 10  17.26585  01 48 14.517  -17 39 37.12  23.7r 14YF92    W84  C~55TR      
2015 10  18.21481  01 48 10.253  -17 40 02.17  23.6g 14YF92    W84  C~55TR      
2015 11  01.21963  01 47 07.129  -17 45 00.35  23.2z 14YF92    W84  C~55TR      
2015 11  05.18448  01 46 49.638  -17 45 58.91  23.6g 14YF92    W84  C~55TR      
2015 11  07.16552  01 46 41.032  -17 46 23.73  23.1z 14YF92    W84  C~55TR      
2015 11  30.18137  01 45 11.633  -17 47 16.61  23.4i 14YF92    W84  C~55TR      
2016 09  30.27364  01 54 27.062  -17 19 34.29  23.3i 14YF92    W84  C~55TR      
2016 09  30.27637  01 54 27.053  -17 19 34.33  23.5g 14YF92    W84  C~55TR      
2016 10  02.25000  01 54 18.883  -17 20 44.93  23.5r 14YF92    W84  C~55TR      
2016 10  02.25137  01 54 18.871  -17 20 44.89  23.4i 14YF92    W84  C~55TR      
2016 10  02.25274  01 54 18.863  -17 20 44.99  23.6g 14YF92    W84  C~55TR      
2016 11  18.23319  01 50 53.014  -17 36 39.21  22.9z 14YF92    W84  C~55TR      
2017 11  27.07474  01 55 21.556  -17 24 56.91  23.0i 14YF92    W84  C~55TR      
2017 12  07.07100  01 54 48.210  -17 23 35.93  23.1r 14YF92    W84  C~55TR      
2017 12  13.13638  01 54 31.133  -17 22 07.62  23.8g 14YF92    W84  C~55TR      
2017 12  14.13695  01 54 28.571  -17 21 50.40  23.7g 14YF92    W84  C~55TR      
2017 12  22.10784  01 54 10.955  -17 19 04.80  23.2i 14YF92    W84  C~55TR      
2017 12  22.10920  01 54 10.959  -17 19 04.89  24.0g 14YF92    W84  C~55TR      
2018 01  10.08904  01 53 50.659  -17 09 36.16  23.1r 14YF92    W84  C~55TR      
2018 09  22.38979  02 05 05.030  -16 49 28.51  23.3i 14YF92    W84  C~55TR      
2018 11  17.09761  02 01 04.059  -17 12 40.13  23.4i 14YF92    W84  C~55TR      
2018 12  02.20270  02 00 06.148  -17 12 21.61  22.4r 14YF92    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    -0.13       0.00    -0.01
     2   0.0710     14.15     0.10     827.73     0.03
     3   0.6824  10595.78    -0.06   -1518.18     0.00
     4   0.7397   9510.79    -0.12   -2017.42     0.09
     5   0.8051   7928.31     0.03   -2292.53    -0.09
     6   0.8051   7928.16    -0.02   -2292.41     0.02
     7   0.8326   7223.60    -0.13   -2302.17     0.01
     8   0.8352   7157.66     0.00   -2299.81    -0.00
     9   0.8736   6211.88    -0.08   -2199.54     0.19
    10   0.8844   5959.80    -0.02   -2150.08    -0.01
    11   0.8898   5837.42     0.07   -2122.14    -0.28
    12   0.9528   4650.22     0.16   -1646.42    -0.01
    13   1.7881  12583.51     0.07   -3431.97    -0.00
    14   1.7882  12583.37     0.13   -3431.95     0.04
    15   1.7936  12447.04     0.06   -3446.83    -0.01
    16   1.7936  12446.90     0.01   -3446.72     0.11
    17   1.7936  12446.75    -0.04   -3446.77     0.08
    18   1.9222   9363.18     0.27   -3080.55    -0.17
    19   2.9457  13158.15    -0.16   -4054.62     0.07
    20   2.9731  12757.50     0.05   -3779.36     0.01
    21   2.9897  12572.00    -0.07   -3595.94     0.02
    22   2.9924  12545.84    -0.15   -3564.82    -0.09
    23   3.0142  12385.77    -0.03   -3307.97     0.10
    24   3.0143  12385.78     0.01   -3308.08    -0.05
    25   3.0662  12360.08    -0.05   -2668.51    -0.04
    26   3.7652  21696.13     0.07   -5716.56     0.00
    27   3.9177  17941.26    -0.03   -5479.55     0.15
    28   3.9591  17192.99     0.05   -5105.71    -0.15

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.

14YF92    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.598    43.609    43.588
ecceobj         0.117     0.118     0.117
incobj         29.638    29.638    29.638
qmin           37.160    37.018    37.224
qmax           49.867    50.036    49.779
amean          43.345    43.342    43.345
amin           43.006    42.994    43.008
amax           43.730    43.747    43.730
emean           0.127     0.127     0.125
emin            0.112     0.113     0.112
emax            0.140     0.144     0.139
imean          28.287    28.274    28.303
imin           27.962    27.918    27.979
imax           28.639    28.659    28.647
excite_mean     0.491     0.491     0.490
fracstop        1.000     1.000     1.000
cjmean          2.792     2.792     2.792

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       162.3     166.7     162.0
kozaiamp        180.0     180.0     180.0