Orbit Fit and Astrometric record for 14UY277

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: 14UY277   
# Created Fri Dec  3 02:12:51 2021
# Orbit generated from Bernstein formalism
# Fitting     17 observations of     17
# Arc:   4.03y
# First observation: 2014/10/28
#  Last observation: 2018/11/07
Preliminary a, adot, b, bdot, g, gdot:
   0.000213   0.028289   0.000010  -0.012158   0.029478   0.000000
# Chi-squared of fit:     5.24 DOF:     28 RMS:  0.10
# Min/Max residuals:    -0.20    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.517502E-05  2.807232E-02 -6.150811E-06 -1.200563E-02  2.832896E-02 -2.153662E-03
# Covariance matrix:
  2.2274E-13 -7.2945E-14 -6.2012E-15  5.6706E-16  1.1696E-13 -1.2960E-13
 -7.2945E-14  3.3120E-13  2.7990E-14 -1.3183E-13  3.1787E-13  3.0409E-12
 -6.2012E-15  2.7990E-14  1.8934E-13 -7.6694E-14  1.2193E-14  2.9990E-13
  5.6706E-16 -1.3183E-13 -7.6694E-14  1.0202E-13 -1.5614E-13 -1.3810E-12
  1.1696E-13  3.1787E-13  1.2193E-14 -1.5614E-13  7.8434E-13  3.2001E-12
 -1.2960E-13  3.0409E-12  2.9990E-13 -1.3810E-12  3.2001E-12  3.1985E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -32.326078   40.263673    0.099967   -0.529265   -0.836724  2456958.851634
# Heliocentric elements and errors
Epoch:              2456950.5000  =  2014/10/20
Mean Anomaly:          315.40232 +/-     0.046
Argument of Peri:      291.11903 +/-     0.064
Long of Asc Node:      169.53940 +/-     0.001
Inclination:            38.42470 +/-     0.000
Eccentricity:         0.10603761 +/-    0.0002
Semi-Major Axis:     38.83193592 +/-    0.0050
Time of Perihelion: 2467899.9357 +/-      11.2
Perihelion:          34.71429018 +/-    0.0083
Aphelion:            42.94958166 +/-    0.0089
Period (y)              241.9868 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.57880376 +/-    0.0007
Ecliptic Y           19.84364709 +/-    0.0006
Ecliptic Z          -18.87622744 +/-    0.0006
Ecliptic XDOT        -0.00236554 +/-    0.0000
Ecliptic YDOT         0.00155076 +/-    0.0000
Ecliptic ZDOT        -0.00086905 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.13920695 +/-    0.0006
Geocenter to KBO     35.29957022 +/-    0.0011
# Hcoef:  7.61

The following table shows the complete astrometric record for 14UY277. 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 (14UY277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  28.350856 03 11 37.43   -15 51 53.5   22.6i 14UY277   W84  C~55Sh      
2014 10  28.352222 03 11 37.41   -15 51 53.5   22.9r 14UY277   W84  C~55Sh      
2014 10  29.353426 03 11 32.04   -15 52 30.5   23.0i 14UY277   W84  C~55Sh      
2014 11  13.30690  03 10 09.486  -15 59 57.49  22.7z 14UY277   W84  C~55Sh      
2014 11  16.297361 03 09 52.80   -16 01 01.4   23.2r 14UY277   W84  C~55Sh      
2014 11  21.275868 03 09 25.19   -16 02 27.3   23.8g 14UY277   W84  C~55Sh      
2014 12  16.216412 03 07 19.43   -16 03 01.8   23.2r 14UY277   W84  C~55Sh      
2015 11  08.30856  03 17 54.980  -16 06 18.41  23.7g 14UY277   W84  C~55Sh      
2016 11  03.31178  03 25 36.846  -16 11 48.24  23.3i 14UY277   W84  C~55Sh      
2016 11  03.31314  03 25 36.841  -16 11 48.29  23.3r 14UY277   W84  C~55Sh      
2016 11  03.31449  03 25 36.827  -16 11 48.24  23.3g 14UY277   W84  C~55Sh      
2016 12  30.11113  03 20 48.191  -16 15 42.15  23.1r 14UY277   W84  C~55Sh      
2017 02  17.05291  03 19 59.749  -15 39 55.00  24.0g 14UY277   W84  C~55Sh      
2017 10  30.35109  03 33 20.048  -16 16 02.08  23.4i 14UY277   W84  C~55Sh      
2018 02  03.08542  03 26 54.923  -15 59 59.47  23.4i 14UY277   W84  C~55Sh      
2018 10  22.36494  03 41 24.447  -16 16 00.54  22.4z 14UY277   W84  C~55Sh      
2018 11  07.27716  03 40 00.880  -16 26 18.93  23.5g 14UY277   W84  C~55Sh      

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     0.10       0.00    -0.11
     2   0.0000     -0.27    -0.05       0.09    -0.01
     3   0.0027    -85.47    -0.07     -10.57     0.12
     4   0.0437  -1356.37    -0.09     -60.17     0.23
     5   0.0519  -1604.87     0.04     -45.38    -0.04
     6   0.0655  -2009.82     0.06      -2.24    -0.20
     7   0.1338  -3743.44    -0.04     530.41     0.05
     8   1.0293   4884.72     0.22   -2557.72     0.07
     9   2.0177  11076.99    -0.06   -5051.33    -0.03
    10   2.0177  11076.91    -0.03   -5051.35    -0.05
    11   2.0177  11076.73    -0.08   -5051.24     0.07
    12   2.1732   7064.56    -0.15   -3901.79    -0.10
    13   2.3072   7102.43     0.12   -1642.42    -0.08
    14   3.0062  17310.48     0.05   -7546.29     0.03
    15   3.2683  12378.14    -0.11   -4756.85    -0.10
    16   3.9836  23935.09     0.04   -9981.25     0.07
    17   4.0272  22573.92     0.05  -10138.95     0.08

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.

14UY277    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        39.048    39.061    39.035
ecceobj         0.106     0.107     0.106
incobj         38.321    38.321    38.321
qmin           34.192    34.226    33.894
qmax           43.602    43.642    43.881
amean          38.801    38.815    38.750
amin           38.501    38.514    38.451
amax           39.115    39.136    39.099
emean           0.101     0.101     0.105
emin            0.087     0.088     0.091
emax            0.116     0.116     0.123
imean          37.817    37.816    37.766
imin           37.477    37.485    37.393
imax           38.146    38.144    38.103
excite_mean     0.621     0.621     0.621
fracstop        1.000     1.000     1.000
cjmean          2.561     2.561     2.561

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       172.6     172.8     175.7
kozaiamp        180.0     180.0     180.0