Orbit Fit and Astrometric record for 14UF277

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: 14UF277   
# Created Tue Dec  7 02:12:57 2021
# Orbit generated from Bernstein formalism
# Fitting     15 observations of     15
# Arc:   4.00y
# First observation: 2014/10/20
#  Last observation: 2018/10/21
Preliminary a, adot, b, bdot, g, gdot:
  -0.000008   0.021867  -0.000049   0.001035   0.023298   0.000000
# Chi-squared of fit:     6.70 DOF:     24 RMS:  0.12
# Min/Max residuals:    -0.26    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.553975E-05  2.175744E-02  4.083096E-08  1.024050E-03  2.321403E-02 -6.164946E-04
# Covariance matrix:
  2.8819E-13 -2.8642E-13  6.8002E-15 -8.3607E-15 -2.9227E-14 -2.3554E-12
 -2.8642E-13  7.0481E-13  4.1001E-15  1.3263E-14 -1.0727E-13  7.2282E-12
  6.8002E-15  4.1001E-15  2.1690E-13 -8.5461E-14 -4.2208E-14 -1.2183E-15
 -8.3607E-15  1.3263E-14 -8.5461E-14  6.1988E-14  1.9184E-14  1.7306E-13
 -2.9227E-14 -1.0727E-13 -4.2208E-14  1.9184E-14  3.4160E-13 -8.3500E-13
 -2.3554E-12  7.2282E-12 -1.2183E-15  1.7306E-13 -8.3500E-13  8.1484E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -37.616562   -8.970994   -0.578565   -0.495904   -0.643850  2456950.788658
# Heliocentric elements and errors
Epoch:              2456950.5000  =  2014/10/20
Mean Anomaly:          210.07237 +/-     0.572
Argument of Peri:       66.01530 +/-     0.573
Long of Asc Node:       76.59830 +/-     0.001
Inclination:            37.08661 +/-     0.000
Eccentricity:         0.03228072 +/-    0.0003
Semi-Major Axis:     42.52699719 +/-    0.0051
Time of Perihelion: 2499137.1158 +/-     160.7
Perihelion:          41.15419525 +/-    0.0122
Aphelion:            43.89979912 +/-    0.0124
Period (y)              277.3354 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.59530978 +/-    0.0009
Ecliptic Y           -4.87417967 +/-    0.0001
Ecliptic Z          -26.29337502 +/-    0.0007
Ecliptic XDOT         0.00041159 +/-    0.0000
Ecliptic YDOT         0.00252738 +/-    0.0000
Ecliptic ZDOT         0.00014016 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.72567502 +/-    0.0008
Geocenter to KBO     43.07739486 +/-    0.0011
# Hcoef:  7.06

The following table shows the complete astrometric record for 14UF277. 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 (14UF277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  20.28788  00 37 34.943  -37 31 38.41  23.8r 14UF277   W84  C~55Sg      
2014 11  04.12601  00 36 22.024  -37 29 47.41  22.6z 14UF277   W84  C~55Sg      
2014 11  21.06031  00 35 15.242  -37 23 05.50  23.1i 14UF277   W84  C~55Sg      
2014 11  21.07596  00 35 15.165  -37 23 04.95  23.7g 14UF277   W84  C~55Sg      
2014 12  13.09865  00 34 25.950  -37 07 52.30  23.5i 14UF277   W84  C~55Sg      
2015 08  24.29434  00 47 38.768  -36 25 06.56  23.3i 14UF277   W84  C~55Sg      
2015 08  24.29571  00 47 38.759  -36 25 06.59  23.5r 14UF277   W84  C~55Sg      
2015 08  24.29706  00 47 38.761  -36 25 06.77  24.2g 14UF277   W84  C~55Sg      
2016 08  29.30356  00 52 22.772  -35 47 18.63  23.3i 14UF277   W84  C~55Sg      
2016 08  29.30493  00 52 22.779  -35 47 18.82  23.8r 14UF277   W84  C~55Sg      
2016 08  29.30632  00 52 22.778  -35 47 18.88  24.1g 14UF277   W84  C~55Sg      
2016 10  10.03169  00 48 52.996  -36 08 32.76  23.2i 14UF277   W84  C~55Sg      
2016 11  19.04496  00 45 42.680  -36 03 23.43  23.3r 14UF277   W84  C~55Sg      
2018 09  18.36054  01 00 54.143  -34 33 29.91  23.7r 14UF277   W84  C~55Sg      
2018 10  21.09304  00 58 01.555  -34 44 27.52  23.0z 14UF277   W84  C~55Sg      

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    -0.15       0.00     0.14
     2   0.0406   -699.51     0.35     525.14    -0.23
     3   0.0870  -1194.79    -0.03    1266.01    -0.08
     4   0.0870  -1195.32    -0.26    1266.94     0.10
     5   0.1473  -1261.45     0.09    2350.47     0.02
     6   0.8433   8265.00     0.01    -227.37     0.05
     7   0.8433   8264.89    -0.01    -227.34     0.11
     8   0.8433   8264.82     0.01    -227.51    -0.04
     9   1.8590  12395.28    -0.05     -96.34     0.16
    10   1.8590  12395.25     0.01     -96.55    -0.03
    11   1.8591  12395.21     0.07     -96.59    -0.06
    12   1.9733   9550.64     0.06     155.79    -0.13
    13   2.0828   7733.63    -0.10    1614.97    -0.04
    14   3.9126  20111.20    -0.09     268.06    -0.02
    15   4.0022  17947.92     0.09     875.89     0.05

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.

14UF277    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.852    42.869    42.836
ecceobj         0.025     0.025     0.026
incobj         37.105    37.105    37.105
qmin           40.891    41.007    40.885
qmax           44.649    44.625    44.687
amean          42.690    42.715    42.690
amin           42.353    42.392    42.369
amax           43.022    43.038    43.025
emean           0.028     0.027     0.028
emin            0.017     0.017     0.017
emax            0.038     0.037     0.039
imean          35.664    35.666    35.668
imin           35.432    35.437    35.440
imax           35.915    35.916    35.912
excite_mean     0.584     0.584     0.584
fracstop        1.000     1.000     1.000
cjmean          2.640     2.640     2.640

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       187.1     185.4     187.7
kozaiamp        180.0     179.9     179.9