Orbit Fit and Astrometric record for 14RW86

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: 14RW86    
# Created Fri Dec  3 02:12:36 2021
# Orbit generated from Bernstein formalism
# Fitting     17 observations of     17
# Arc:   3.26y
# First observation: 2014/09/04
#  Last observation: 2017/12/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.039068  -0.000009  -0.001055   0.032274   0.000000
# Chi-squared of fit:     7.36 DOF:     28 RMS:  0.12
# Min/Max residuals:    -0.24    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.814979E-05  3.898368E-02 -9.850897E-07 -1.048909E-03  3.211697E-02  3.426831E-03
# Covariance matrix:
  3.1827E-13 -3.5603E-14  2.0607E-14 -1.4181E-15  2.2473E-13  5.0762E-14
 -3.5603E-14  8.6432E-13  3.4737E-14 -5.6821E-14  3.2697E-13  1.0125E-11
  2.0607E-14  3.4737E-14  1.7752E-13 -7.5220E-14  4.1957E-14  3.8190E-13
 -1.4181E-15 -5.6821E-14 -7.5220E-14  6.4633E-14 -2.1328E-14 -7.1938E-13
  2.2473E-13  3.2697E-13  4.1957E-14 -2.1328E-14  4.3999E-13  3.5045E-12
  5.0762E-14  1.0125E-11  3.8190E-13 -7.1938E-13  3.5045E-12  1.2878E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -23.654016   33.055948    0.791925   -0.252127   -0.575985  2456904.846608
# Heliocentric elements and errors
Epoch:              2456900.5000  =  2014/08/31
Mean Anomaly:           13.75489 +/-     0.055
Argument of Peri:      243.79449 +/-     0.088
Long of Asc Node:      127.15568 +/-     0.001
Inclination:            23.29275 +/-     0.000
Eccentricity:         0.20180869 +/-    0.0002
Semi-Major Axis:     39.29836917 +/-    0.0051
Time of Perihelion: 2453462.4300 +/-      13.8
Perihelion:          31.36761681 +/-    0.0078
Aphelion:            47.22912153 +/-    0.0090
Period (y)              246.3599 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.86023617 +/-    0.0005
Ecliptic Y           15.23771528 +/-    0.0003
Ecliptic Z          -12.49228484 +/-    0.0003
Ecliptic XDOT        -0.00162326 +/-    0.0000
Ecliptic YDOT         0.00290727 +/-    0.0000
Ecliptic ZDOT        -0.00019899 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.72186139 +/-    0.0004
Geocenter to KBO     31.13618280 +/-    0.0006
# Hcoef:  8.43

The following table shows the complete astrometric record for 14RW86. 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 (14RW86) followed by the observatory code and reference code for the source of the astrometry.

2014 09  04.34583  02 35 19.953  -09 45 02.97  23.9r 14RW86    W84  C~52Tx      
2014 09  25.28428  02 34 08.773  -10 02 30.93  24.2g 14RW86    W84  C~52Tx      
2014 09  25.28565  02 34 08.769  -10 02 31.00  23.0i 14RW86    W84  C~52Tx      
2014 10  01.38594  02 33 40.657  -10 07 20.52  23.0i 14RW86    W84  C~52Tx      
2014 10  28.31415  02 31 11.300  -10 24 54.56  24.0g 14RW86    W84  C~52Tx      
2014 10  28.31554  02 31 11.308  -10 24 54.66  23.2i 14RW86    W84  C~52Tx      
2014 11  21.24505  02 28 49.862  -10 32 37.10  24.3g 14RW86    W84  C~52Tx      
2014 11  21.24784  02 28 49.826  -10 32 37.18  23.5r 14RW86    W84  C~52Tx      
2014 12  15.16590  02 26 53.778  -10 30 49.64  23.3i 14RW86    W84  C~52Tx      
2016 09  24.30614  02 51 21.501  -08 37 03.15  22.9r 14RW86    W84  C~52Tx      
2016 09  24.30890  02 51 21.476  -08 37 03.60  23.2r 14RW86    W84  C~52Tx      
2016 09  25.20308  02 51 17.914  -08 37 45.89  24.0g 14RW86    W84  C~52Tx      
2016 12  02.13300  02 45 03.322  -09 09 06.74  23.2i 14RW86    W84  C~52Tx      
2016 12  02.14129  02 45 03.269  -09 09 06.63  22.9r 14RW86    W84  C~52Tx      
2016 12  02.14268  02 45 03.283  -09 09 06.73  24.2g 14RW86    W84  C~52Tx      
2017 11  19.17536  02 54 47.714  -08 24 57.26  23.1i 14RW86    W84  C~52Tx      
2017 12  08.12156  02 53 03.115  -08 26 04.43  24.3g 14RW86    W84  C~52Tx      

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     0.22       0.00     0.10
     2   0.0573  -1344.05    -0.13    -630.98     0.12
     3   0.0573  -1344.13    -0.10    -631.02     0.11
     4   0.0740  -1832.65     0.06    -763.57     0.13
     5   0.1478  -4263.76    -0.08   -1015.20     0.04
     6   0.1478  -4263.68     0.12   -1015.34    -0.10
     7   0.2133  -6385.94     0.19    -753.44    -0.11
     8   0.2133  -6386.47    -0.11    -753.34    -0.07
     9   0.2788  -7966.38    -0.14     -81.89    -0.20
    10   2.0560  14798.36     0.07   -1063.19     0.07
    11   2.0560  14797.85    -0.24   -1063.48    -0.16
    12   2.0585  14733.26     0.02   -1084.73     0.00
    13   2.2445   8854.52    -0.00    -922.55    -0.03
    14   2.2445   8853.82    -0.09    -922.18     0.10
    15   2.2445   8853.98     0.17    -922.34    -0.10
    16   3.2083  17937.94     0.04   -1455.31    -0.02
    17   3.2602  16450.30     0.01    -972.46     0.13

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.

14RW86    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.645    39.666    39.624
ecceobj         0.209     0.210     0.209
incobj         23.283    23.283    23.283
qmin           27.576    27.308    27.830
qmax           52.089    52.199    51.766
amean          39.455    39.455    39.455
amin           38.967    38.981    38.977
amax           40.050    40.028    40.036
emean           0.249     0.250     0.238
emin            0.179     0.182     0.180
emax            0.302     0.306     0.294
imean          19.990    20.009    20.464
imin           18.142    17.908    18.380
imax           22.377    22.309    22.070
excite_mean     0.425     0.425     0.424
fracstop        1.000     1.000     1.000
cjmean          2.845     2.844     2.845

libcent 0       179.2     179.6     180.4
libamp  0       108.4     100.6     112.3
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       256.8     269.6     245.8
kozaiamp         69.7      66.7      72.5