Orbit Fit and Astrometric record for 14UK277

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: 14UK277   
# Created Sat Nov 27 02:12:57 2021
# Orbit generated from Bernstein formalism
# Fitting     13 observations of     13
# Arc:   3.90y
# First observation: 2014/10/21
#  Last observation: 2018/09/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000336   0.026207  -0.000104   0.006693   0.024954   0.000000
# Chi-squared of fit:     5.06 DOF:     20 RMS:  0.11
# Min/Max residuals:    -0.21    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.687445E-05  2.570819E-02  4.677631E-06  6.575047E-03  2.482948E-02 -4.372436E-03
# Covariance matrix:
  4.5068E-13 -3.4728E-13  2.4765E-14 -5.5472E-14 -1.2835E-14 -1.9968E-12
 -3.4728E-13  5.5180E-13 -5.8462E-14  1.1996E-13  1.5179E-13  4.3103E-12
  2.4765E-14 -5.8462E-14  3.3616E-13 -1.1975E-13 -5.6210E-14 -5.6172E-13
 -5.5472E-14  1.1996E-13 -1.1975E-13  8.0234E-14  6.5342E-14  1.0756E-12
 -1.2835E-14  1.5179E-13 -5.6210E-14  6.5342E-14  6.9863E-13  2.3092E-12
 -1.9968E-12  4.3103E-12 -5.6172E-13  1.0756E-12  2.3092E-12  3.8590E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -11.757172   24.254364   -0.055924   -0.202717   -0.974867  2456951.788308
# Heliocentric elements and errors
Epoch:              2456950.5000  =  2014/10/20
Mean Anomaly:          333.90102 +/-     0.023
Argument of Peri:        6.30631 +/-     0.046
Long of Asc Node:       62.11706 +/-     0.001
Inclination:            18.33405 +/-     0.000
Eccentricity:         0.27442631 +/-    0.0002
Semi-Major Axis:     53.18184500 +/-    0.0120
Time of Perihelion: 2467220.3605 +/-       8.4
Perihelion:          38.58734743 +/-    0.0145
Aphelion:            67.77634257 +/-    0.0192
Period (y)              387.8406 +/-      0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.83138447 +/-    0.0012
Ecliptic Y           16.65914556 +/-    0.0005
Ecliptic Z           -8.20641216 +/-    0.0003
Ecliptic XDOT        -0.00146461 +/-    0.0000
Ecliptic YDOT         0.00244653 +/-    0.0000
Ecliptic ZDOT         0.00080814 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.24831164 +/-    0.0011
Geocenter to KBO     40.27470850 +/-    0.0014
# Hcoef:  7.51

The following table shows the complete astrometric record for 14UK277. 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 (14UK277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  21.28753  01 47 01.569  -01 32 44.89  23.7r 14UK277   W84  C~55Sg      
2014 10  21.28890  01 47 01.562  -01 32 44.62  23.6i 14UK277   W84  C~55Sg      
2014 11  16.15940  01 45 04.306  -01 40 00.21  23.2i 14UK277   W84  C~55Sg      
2015 08  24.37126  01 55 34.730  -00 15 13.44  23.4r 14UK277   W84  C~55Sg      
2016 01  12.06145  01 47 46.190  -00 41 59.19  23.6r 14UK277   W84  C~55Sg      
2016 09  10.29392  01 59 47.462  +00 31 14.18  23.9r 14UK277   W84  C~55Sg      
2016 11  03.17412  01 55 55.395  +00 09 48.64  24.2r 14UK277   W84  C~55Sg      
2016 11  10.13098  01 55 23.360  +00 07 55.16  22.7z 14UK277   W84  C~55Sg      
2017 09  18.33799  02 04 22.311  +01 21 56.90  23.7r 14UK277   W84  C~55Sg      
2018 09  09.35165  02 09 56.215  +02 19 59.13  23.2r 14UK277   W84  C~55Sg      
2018 09  09.35304  02 09 56.208  +02 19 59.12  23.5i 14UK277   W84  C~55Sg      
2018 09  14.36371  02 09 40.713  +02 18 02.23  23.5r 14UK277   W84  C~55Sg      
2018 09  14.36648  02 09 40.724  +02 18 02.08  24.2g 14UK277   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    -0.10       0.00    -0.10
     2   0.0000      0.00    -0.00       0.29     0.18
     3   0.0708  -1796.47     0.08     232.02     0.04
     4   0.8407   8865.65     0.00    1540.09    -0.14
     5   1.2259   1728.79    -0.03    2595.55    -0.01
     6   1.8891  13424.39     0.08    2763.13    -0.00
     7   2.0367   9702.18     0.25    2828.59     0.07
     8   2.0557   9212.21    -0.21    2897.33     0.02
     9   2.9105  18401.25    -0.09    4108.99    -0.15
    10   3.8852  24396.66    -0.06    5555.11     0.00
    11   3.8852  24396.55    -0.10    5555.14     0.04
    12   3.8989  24134.04    -0.04    5529.70     0.13
    13   3.8989  24134.14     0.21    5529.50    -0.06

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.

14UK277    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        53.743    53.776    53.711
ecceobj         0.279     0.279     0.279
incobj         18.312    18.312    18.312
qmin           37.400    37.511    37.352
qmax           69.670    69.664    69.694
amean          53.210    53.247    53.178
amin           52.680    52.719    52.624
amax           53.850    53.888    53.844
emean           0.279     0.279     0.279
emin            0.264     0.265     0.264
emax            0.294     0.294     0.295
imean          16.905    16.923    16.880
imin           16.307    16.328    16.259
imax           17.421    17.390    17.422
excite_mean     0.403     0.403     0.403
fracstop        1.000     1.000     1.000
cjmean          3.009     3.009     3.008

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       166.3     164.4     170.1
kozaiamp        179.9     179.9     180.0