Orbit Fit and Astrometric record for 14TT85

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: 14TT85    
# Created Sun Oct 22 01:38:29 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   34
# Arc:   2.32y
# First observation: 2013/09/12
#  Last observation: 2016/01/07
Preliminary a, adot, b, bdot, g, gdot:
   0.000062   0.028154   0.000030   0.004339   0.027071   0.000000
# Chi-squared of fit:    21.42 DOF:   60 RMS:  0.14
# Min/Max residuals:    -0.36    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.607712E-05  2.804967E-02  2.703911E-06  4.362280E-03  2.690939E-02  1.589173E-03
# Covariance matrix:
  2.4212E-13 -2.4308E-13  1.2335E-14 -2.9480E-14 -5.0825E-14 -2.9926E-12
 -2.4308E-13  1.8500E-12 -6.6782E-14  2.9366E-13  1.5749E-12  3.1568E-11
  1.2335E-14 -6.6782E-14  2.0404E-13 -1.4010E-13 -4.7891E-14 -1.4088E-12
 -2.9480E-14  2.9366E-13 -1.4010E-13  1.5537E-13  2.4929E-13  5.5606E-12
 -5.0825E-14  1.5749E-12 -4.7891E-14  2.4929E-13  1.5046E-12  2.7074E-11
 -2.9926E-12  3.1568E-11 -1.4088E-12  5.5606E-12  2.7074E-11  5.9323E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.024549   38.260393    0.759594   -0.182497   -0.635762  2456547.736553
# Heliocentric elements and errors
Epoch:              2456540.5000  =  2013/09/05
Mean Anomaly:           24.18873 +/-     0.484
Argument of Peri:      269.26193 +/-     0.583
Long of Asc Node:       98.34672 +/-     0.002
Inclination:            17.82083 +/-     0.000
Eccentricity:         0.07894060 +/-    0.0004
Semi-Major Axis:     40.68835759 +/-    0.0031
Time of Perihelion: 2450170.8687 +/-     127.4
Perihelion:          37.47639439 +/-    0.0180
Aphelion:            43.90032080 +/-    0.0181
Period (y)              259.5455 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.03483751 +/-    0.0013
Ecliptic Y           21.93384798 +/-    0.0010
Ecliptic Z          -10.25839205 +/-    0.0005
Ecliptic XDOT        -0.00155517 +/-    0.0000
Ecliptic YDOT         0.00241179 +/-    0.0000
Ecliptic ZDOT         0.00038209 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.80674654 +/-    0.0011
Geocenter to KBO     37.16174825 +/-    0.0017
# Hcoef:  8.58

The following table shows the complete astrometric record for 14TT85. 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 (14TT85) followed by the observatory code and reference code for the source of the astrometry.

2013 09  12.235775 02 43 58.16   -00 56 48.3   24.2z 14TT85    W84  C~1iHQ      
2013 09  28.217674 02 43 05.35   -01 05 11.6   24.3r 14TT85    W84  C~2FaN      
2013 09  28.220035 02 43 05.37   -01 05 11.7   24.1i 14TT85    W84  C~1iHQ      
2013 09  28.223854 02 43 05.35   -01 05 11.8   23.5z 14TT85    W84  C~2FaN      
2013 09  28.224028 02 43 05.35   -01 05 11.8   23.5z 14TT85    W84  C~1iHQ      
2014 10  02.273727 02 48 39.55   -00 22 39.6   23.8r 14TT85    W84  C~1GHA      
2014 10  02.276076 02 48 39.54   -00 22 39.5   23.3i 14TT85    W84  C~1GHA      
2014 10  02.279884 02 48 39.52   -00 22 39.5   23.1z 14TT85    W84  C~1GHA      
2014 10  22.120961 02 47 08.84   -00 32 11.0   23.8r 14TT85    W84  C~1GHA      
2014 10  22.123310 02 47 08.81   -00 32 11.1   23.4i 14TT85    W84  C~1GHA      
2014 10  22.127118 02 47 08.79   -00 32 11.2   23.1z 14TT85    W84  C~1GHA      
2014 10  29.105694 02 46 33.37   -00 35 06.7   23.6i 14TT85    W84  C~1GHA      
2014 10  29.109491 02 46 33.34   -00 35 06.9   23.7z 14TT85    W84  C~1GHA      
2014 11  19.181898 02 44 44.34   -00 41 43.1   24.2r 14TT85    W84  C~1GHA      
2014 11  19.184248 02 44 44.34   -00 41 43.3   23.7i 14TT85    W84  C~1GHA      
2014 11  19.188044 02 44 44.31   -00 41 43.3   23.3z 14TT85    W84  C~1GHA      
2014 11  26.183125 02 44 09.72   -00 43 01.2   23.8r 14TT85    W84  C~1GHB      
2014 11  26.185475 02 44 09.70   -00 43 01.2   23.1i 14TT85    W84  C~1GHB      
2014 11  26.189259 02 44 09.69   -00 43 01.3   23.9z 14TT85    W84  C~1GHB      
2014 12  12.043686 02 42 59.35   -00 44 02.3   24.9g 14TT85    W84  C~1GHB      
2014 12  12.045891 02 42 59.33   -00 44 02.1   23.5r 14TT85    W84  C~1GHB      
2014 12  12.048252 02 42 59.33   -00 44 02.3   23.3i 14TT85    W84  C~1GHB      
2014 12  12.052060 02 42 59.31   -00 44 02.3   23.0z 14TT85    W84  C~1GHB      
2014 12  20.071661 02 42 29.61   -00 43 28.8   24.5g 14TT85    W84  C~1GHB      
2014 12  20.073889 02 42 29.62   -00 43 28.9   23.7r 14TT85    W84  C~1GHB      
2014 12  20.076227 02 42 29.62   -00 43 28.9   23.6i 14TT85    W84  C~1GHB      
2014 12  20.080023 02 42 29.60   -00 43 28.9   23.8z 14TT85    W84  C~1GHB      
2015 10  30.215208 02 52 18.43   +00 09 06.0   24.2r 14TT85    W84  C~1iHQ      
2015 10  30.217558 02 52 18.39   +00 09 05.9   23.6i 14TT85    W84  C~1iHQ      
2015 11  01.125382 02 52 08.57   +00 08 22.0   24.0i 14TT85    W84  C~1iHQ      
2015 11  19.245938 02 50 34.42   +00 02 48.8   24.0i 14TT85    W84  C~1iHQ      
2016 01  07.045069 02 47 26.90   +00 04 08.8   23.8r 14TT85    W84  C~1iHR      
2016 01  07.047431 02 47 26.90   +00 04 08.6   23.9i 14TT85    W84  C~1iHR      
2016 01  07.051389 02 47 26.89   +00 04 08.8   23.6z 14TT85    W84  C~1iHR      

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     0.08       0.00    -0.03
  2   0.0438   -909.61    -0.36    -230.73     0.24
  3   0.0438   -909.36     0.05    -230.92     0.08
  4   0.0438   -909.67    -0.02    -230.92     0.12
  5   0.0438   -909.67    -0.01    -230.92     0.13
  6   1.0542   4650.20    -0.04     627.25    -0.18
  7   1.0542   4650.09     0.01     627.39    -0.02
  8   1.0542   4649.81    -0.02     627.48     0.11
  9   1.1085   3178.62 (   0.45)    509.71 (   0.07)
 10   1.1085   3178.16     0.18     509.76     0.12
 11   1.1085   3177.85     0.17     509.76     0.12
 12   1.1276   2618.22     0.07     509.08    -0.29
 13   1.1276   2617.73    -0.11     509.03    -0.35
 14   1.1853    940.76    -0.17     643.52     0.09
 15   1.1853    940.70    -0.05     643.33    -0.13
 16   1.1854    940.27    -0.18     643.47    -0.03
 17   1.2045    423.08     0.10     731.55    -0.07
 18   1.2045    422.80    -0.01     731.64    -0.01
 19   1.2045    422.62     0.09     731.60    -0.12
 20   1.2479   -598.67     0.21    1003.19    -0.16
 21   1.2479   -598.89     0.11    1003.48     0.08
 22   1.2479   -598.96     0.18    1003.29    -0.16
 23   1.2480   -599.24     0.12    1003.38    -0.15
 24   1.2699  -1011.98    -0.23    1174.34     0.18
 25   1.2699  -1011.86    -0.01    1174.19    -0.01
 26   1.2699  -1011.86     0.10    1174.19    -0.07
 27   1.2699  -1012.15    -0.00    1174.29    -0.06
 28   2.1300   8368.47     0.15    1411.65     0.04
 29   2.1300   8367.86    -0.26    1411.75     0.13
 30   2.1352   8213.97     0.02    1416.08    -0.02
 31   2.1848   6766.41     0.25    1540.96     0.19
 32   2.3184   4117.64    -0.14    2496.16     0.21
 33   2.3184   4117.57    -0.15    2495.97    -0.05
 34   2.3185   4117.49    -0.14    2496.21     0.09

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.

14TT85    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.903    40.915    40.891
ecceobj         0.085     0.086     0.084
incobj         17.832    17.832    17.832
qmin           36.781    36.723    36.776
qmax           44.623    44.656    44.556
amean          40.585    40.597    40.573
amin           40.273    40.285    40.263
amax           40.923    40.930    40.898
emean           0.073     0.074     0.072
emin            0.056     0.058     0.056
emax            0.091     0.092     0.090
imean          15.778    15.781    15.776
imin           14.932    14.943    14.936
imax           16.955    16.953    16.944
excite_mean     0.282     0.282     0.281
fracstop        1.000     1.000     1.000
cjmean          2.972     2.971     2.972

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       178.8     179.1     179.1
kozaiamp        180.0     179.9     179.9