Orbit Fit and Astrometric record for 14UK225

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: 14UK225   
# Created Fri Dec 15 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   40 observations of   40
# Arc:   2.11y
# First observation: 2013/11/29
#  Last observation: 2016/01/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000079   0.028624   0.000019  -0.004832   0.026771   0.000000
# Chi-squared of fit:     4.31 DOF:   74 RMS:  0.06
# Min/Max residuals:    -0.17    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.696459E-05  2.848978E-02 -2.992602E-06 -4.819354E-03  2.677851E-02 -1.243474E-03
# Covariance matrix:
  1.6157E-13 -2.2624E-13 -8.5113E-15  2.4689E-14 -5.9088E-14 -2.3226E-12
 -2.2624E-13  7.1065E-13  3.2869E-14 -1.0210E-13  1.0869E-13  9.7516E-12
 -8.5113E-15  3.2869E-14  1.1649E-13 -8.3827E-14  7.9077E-15  5.1022E-13
  2.4689E-14 -1.0210E-13 -8.3827E-14  9.5599E-14 -1.9769E-14 -1.5790E-12
 -5.9088E-14  1.0869E-13  7.9077E-15 -1.9769E-14  1.1100E-13  1.7906E-12
 -2.3226E-12  9.7516E-12  5.1022E-13 -1.5790E-12  1.7906E-12  1.5069E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.667806   27.533131   -0.624440    0.062053   -0.758710  2456625.760228
# Heliocentric elements and errors
Epoch:              2456620.5000  =  2013/11/24
Mean Anomaly:          349.00501 +/-     0.157
Argument of Peri:      168.85612 +/-     0.207
Long of Asc Node:      233.58438 +/-     0.001
Inclination:            10.67788 +/-     0.001
Eccentricity:         0.13007946 +/-    0.0001
Semi-Major Axis:     43.64868701 +/-    0.0027
Time of Perihelion: 2459837.4747 +/-      46.0
Perihelion:          37.97088924 +/-    0.0050
Aphelion:            49.32648478 +/-    0.0053
Period (y)              288.3799 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.38947611 +/-    0.0004
Ecliptic Y           18.11367425 +/-    0.0002
Ecliptic Z            3.03882081 +/-    0.0000
Ecliptic XDOT        -0.00142943 +/-    0.0000
Ecliptic YDOT         0.00254093 +/-    0.0000
Ecliptic ZDOT        -0.00050130 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.10769925 +/-    0.0004
Geocenter to KBO     37.34337859 +/-    0.0005
# Hcoef:  7.63

The following table shows the complete astrometric record for 14UK225. 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 (14UK225) followed by the observatory code and reference code for the source of the astrometry.

2013 11  29.25945  01 35 18.980  +14 56 50.28  23.5r 14UK225   568  C~2Gdq      
2013 12  04.40602  01 35 01.905  +14 54 28.93  23.4r 14UK225   568  C~2Gdq      
2013 12  05.29920  01 34 59.161  +14 54 05.34  23.3r 14UK225   568  C~2Gdq      
2013 12  30.37920  01 34 11.449  +14 45 24.43  23.5r 14UK225   568  C~2Gdq      
2013 12  30.38523  01 34 11.464  +14 45 24.40  23.5r 14UK225   568  C~2Gdq      
2014 01  02.25325  01 34 09.950  +14 44 45.01  23.4r 14UK225   568  C~2Gdq      
2014 01  02.30801  01 34 09.925  +14 44 44.21  23.2r 14UK225   568  C~2Gdq      
2014 01  03.22327  01 34 09.640  +14 44 32.73  23.3r 14UK225   568  C~2Gdq      
2014 01  03.26568  01 34 09.621  +14 44 32.31  23.3r 14UK225   568  C~2Gdq      
2014 07  26.53368  01 49 20.217  +15 57 50.21  23.6r 14UK225   568  C~2Gdq      
2014 07  26.57688  01 49 20.238  +15 57 50.56  23.6r 14UK225   568  C~2Gdq      
2014 08  24.47423  01 48 57.894  +15 57 52.09  23.3r 14UK225   568  C~2Gdq      
2014 08  24.54416  01 48 57.736  +15 57 51.51  23.4r 14UK225   568  C~2Gdr      
2014 08  30.44950  01 48 43.500  +15 56 54.04  23.3r 14UK225   568  C~2Gdr      
2014 08  30.55610  01 48 43.210  +15 56 52.83  23.3r 14UK225   568  C~2Gdr      
2014 09  18.47464  01 47 38.923  +15 51 45.77  23.2r 14UK225   568  C~2Gdr      
2014 09  18.51736  01 47 38.750  +15 51 44.92  23.3r 14UK225   568  C~2Gdr      
2014 09  23.51567  01 47 17.769  +15 49 55.49  23.3r 14UK225   568  C~2Gdr      
2014 10  22.29873  01 44 58.339  +15 36 38.35  23.3r 14UK225   568  C~2Gdr      
2014 10  22.34444  01 44 58.106  +15 36 36.91  23.2r 14UK225   568  C~2Gdr      
2014 10  22.38820  01 44 57.873  +15 36 35.54  23.2r 14UK225   568  C~2Gdr      
2014 10  23.48652  01 44 52.261  +15 36 01.27  23.0r 14UK225   568  C~2Gdr      
2014 10  25.50246  01 44 42.006  +15 34 57.70  23.0r 14UK225   568  C~2Gdr      
2014 11  20.23375  01 42 39.234  +15 21 23.19  23.2r 14UK225   568  C~2Gdr      
2014 11  20.37417  01 42 38.632  +15 21 18.95  23.3r 14UK225   568  C~2Gdr      
2014 11  21.27833  01 42 34.824  +15 20 51.44  23.2r 14UK225   568  C~2Gdr      
2014 11  21.43358  01 42 34.155  +15 20 46.75  23.3r 14UK225   568  C~2Gdr      
2015 01  28.28328  01 41 08.256  +15 02 03.35  23.1r 14UK225   568  C~2Gdr      
2015 02  19.26046  01 42 19.072  +15 05 04.13  23.5r 14UK225   568  C~2Gdr      
2015 10  10.36050  01 52 48.463  +16 01 37.45  23.3r 14UK225   568  C~2Gdr      
2015 10  10.42692  01 52 48.128  +16 01 35.58  23.2r 14UK225   568  C~2Gdr      
2015 10  12.48210  01 52 37.895  +16 00 37.46        14UK225   568  C~2Gdr      
2015 10  12.54868  01 52 37.541  +16 00 35.67        14UK225   568  C~2Gdr      
2015 10  14.38671  01 52 28.343  +15 59 42.77        14UK225   568  C~2Gdr      
2015 10  14.39084  01 52 28.322  +15 59 42.72        14UK225   568  C~2Gdr      
2015 12  06.20482  01 48 24.659  +15 33 08.12  23.5r 14UK225   568  C~2Gdr      
2015 12  06.27161  01 48 24.425  +15 33 06.42  23.3r 14UK225   568  C~2Gdr      
2015 12  07.40375  01 48 20.709  +15 32 36.90  23.4w 14UK225   568  C~2Gdr      
2015 12  31.32052  01 47 29.169  +15 24 18.00  23.6w 14UK225   568  C~2Gdr      
2016 01  07.29206  01 47 24.727  +15 22 45.32  23.8w 14UK225   568  C~2Gdr      

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    -0.03       0.00     0.03
  2   0.0141   -282.01     0.05     -41.20    -0.03
  3   0.0165   -327.65    -0.02     -48.62    -0.01
  4   0.0852  -1162.12    -0.07    -280.32     0.06
  5   0.0852  -1161.93     0.21    -280.43     0.02
  6   0.0931  -1196.79    -0.03    -309.04     0.02
  7   0.0932  -1197.42    -0.06    -309.65    -0.06
  8   0.0957  -1205.47    -0.01    -318.82    -0.02
  9   0.0958  -1205.88    -0.02    -319.11     0.10
 10   0.6551  12682.55     0.04    -931.91    -0.04
 11   0.6552  12682.96    -0.02    -931.68    -0.03
 12   0.7343  12380.52    -0.01    -817.20     0.02
 13   0.7345  12378.17    -0.05    -816.95     0.01
 14   0.7507  12164.98    -0.02    -798.78     0.04
 15   0.7510  12160.63     0.03    -798.44     0.01
 16   0.8028  11181.33    -0.05    -760.15     0.01
 17   0.8029  11178.69     0.02    -760.07     0.02
 18   0.8166  10855.87     0.02    -755.91    -0.01
 19   0.8954   8685.97     0.02    -789.93     0.03
 20   0.8955   8682.31     0.07    -790.08    -0.02
 21   0.8956   8678.67    -0.02    -790.17     0.00
 22   0.8986   8590.55    -0.02    -793.44     0.07
 23   0.9042   8429.19     0.11    -800.28    -0.17
 24   0.9746   6478.06    -0.05    -929.20    -0.05
 25   0.9750   6468.40     0.05    -930.05    -0.05
 26   0.9775   6407.07    -0.01    -936.06    -0.06
 27   0.9779   6396.34    -0.07    -936.98    -0.02
 28   1.1637   4831.86     0.01   -1540.61     0.12
 29   1.2238   5855.03    -0.06   -1739.58    -0.02
 30   1.8620  15590.64     0.04   -1766.29    -0.05
 31   1.8622  15585.43     0.03   -1766.37    -0.07
 32   1.8678  15426.00    -0.01   -1769.79    -0.12
 33   1.8680  15420.56    -0.17   -1769.70     0.07
 34   1.8730  15277.03     0.04   -1773.36    -0.04
 35   1.8730  15276.73     0.07   -1773.30     0.02
 36   2.0176  11407.83     0.05   -2040.61     0.03
 37   2.0178  11404.06    -0.02   -2041.01     0.10
 38   2.0209  11343.23    -0.03   -2049.80     0.08
 39   2.0864  10467.88    -0.00   -2254.94     0.01
 40   2.1055  10374.89     0.01   -2319.12     0.02

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.

14UK225    quality flag:2

Type:      CLASSICAL  SCATNEAR CLASSICAL

axisobj        43.920    43.929    43.911
ecceobj         0.135     0.135     0.135
incobj         10.668    10.669    10.669
qmin           36.291    35.182    36.566
qmax           51.252    52.877    50.917
amean          43.600    43.687    43.586
amin           43.221    43.194    43.202
amax           44.014    44.307    43.987
emean           0.138     0.164     0.135
emin            0.112     0.119     0.112
emax            0.165     0.195     0.158
imean          11.873    12.038    11.964
imin           10.818    10.430    10.982
imax           13.015    13.317    12.994
excite_mean     0.248     0.266     0.248
fracstop        1.000     1.000     1.000
cjmean          3.023     3.012     3.023

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       180.3     183.0     185.9
kozaiamp        180.0     180.0     179.9