Orbit Fit and Astrometric record for 14TZ85

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: 14TZ85    
# Created Tue Dec 12 02:38:08 2017
# Orbit generated from Bernstein formalism
# Fitting   35 observations of   35
# Arc:   3.21y
# First observation: 2013/12/06
#  Last observation: 2017/02/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000121   0.013811   0.000008  -0.002592   0.018645   0.000000
# Chi-squared of fit:    18.47 DOF:   64 RMS:  0.13
# Min/Max residuals:    -0.42    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.142691E-05  1.389582E-02 -2.266961E-06 -2.601241E-03  1.890059E-02  1.763329E-03
# Covariance matrix:
  1.3429E-13 -8.7248E-14 -8.9751E-15  2.2461E-14  6.2543E-14 -2.8121E-12
 -8.7248E-14  3.0324E-13  2.9078E-14 -7.7505E-14  1.9022E-13  9.7757E-12
 -8.9751E-15  2.9078E-14  9.1261E-14 -5.7077E-14  1.1722E-14  1.2551E-12
  2.2461E-14 -7.7505E-14 -5.7077E-14  7.5092E-14 -3.4582E-14 -3.2995E-12
  6.2543E-14  1.9022E-13  1.1722E-14 -3.4582E-14  3.5383E-13  4.4097E-12
 -2.8121E-12  9.7757E-12  1.2551E-12 -3.2995E-12  4.4097E-12  4.1550E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   10.860415  112.489187    0.608450    0.145668   -0.758611  2456633.008658
# Heliocentric elements and errors
Epoch:              2456630.5000  =  2013/12/04
Mean Anomaly:          147.34950 +/-     0.249
Argument of Peri:      334.28378 +/-     0.242
Long of Asc Node:      337.13456 +/-     0.003
Inclination:            14.89022 +/-     0.001
Eccentricity:         0.24853639 +/-    0.0003
Semi-Major Axis:     43.89510114 +/-    0.0108
Time of Perihelion: 2413152.5897 +/-      71.8
Perihelion:          32.98557100 +/-    0.0171
Aphelion:            54.80463129 +/-    0.0202
Period (y)              290.8254 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.61015791 +/-    0.0006
Ecliptic Y           48.95781909 +/-    0.0015
Ecliptic Z            9.96868785 +/-    0.0003
Ecliptic XDOT        -0.00198905 +/-    0.0000
Ecliptic YDOT        -0.00047461 +/-    0.0000
Ecliptic ZDOT        -0.00032179 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   53.67309457 +/-    0.0014
Geocenter to KBO     52.90839457 +/-    0.0017
# Hcoef:  4.55

The following table shows the complete astrometric record for 14TZ85. 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 (14TZ85) followed by the observatory code and reference code for the source of the astrometry.

2013 12  06.50788  07 45 30.072  +32 15 48.50  21.9w 14TZ85    F51  C~1vXk      
2013 12  06.52013  07 45 30.039  +32 15 48.67  22.1w 14TZ85    F51  C~1vXk      
2013 12  06.53240  07 45 29.988  +32 15 48.84  22.1w 14TZ85    F51  C~1vXk      
2013 12  06.54462  07 45 29.942  +32 15 48.59  22.1w 14TZ85    F51  C~1vXk      
2014 01  04.42891  07 43 29.623  +32 22 08.26  22.0w 14TZ85    F51  C~1vXk      
2014 01  04.44206  07 43 29.556  +32 22 08.54  22.4w 14TZ85    F51  C~1vXk      
2014 01  04.45520  07 43 29.497  +32 22 08.53  22.1w 14TZ85    F51  C~1vXk      
2014 01  04.46835  07 43 29.429  +32 22 08.73  22.0w 14TZ85    F51  C~1vXl      
2014 01  24.30878  07 41 56.259  +32 25 01.34  22.0w 14TZ85    F51  C~1vXl      
2014 01  24.32002  07 41 56.193  +32 25 01.78  21.6w 14TZ85    F51  C~1vXl      
2014 01  24.33129  07 41 56.143  +32 25 01.67  21.8w 14TZ85    F51  C~1vXl      
2014 01  24.34254  07 41 56.089  +32 25 01.63  22.1w 14TZ85    F51  C~1vXl      
2014 10  01.58836  07 49 57.993  +31 45 19.86  22.1w 14TZ85    F51  C~1vXl      
2014 10  01.59367  07 49 58.024  +31 45 19.59  22.2w 14TZ85    F51  C~1vXl      
2014 10  01.59894  07 49 58.008  +31 45 19.39  22.2w 14TZ85    F51  C~1vXl      
2014 10  01.60423  07 49 58.026  +31 45 19.61  22.0w 14TZ85    F51  C~1vXl      
2015 01  18.29973  07 46 01.946  +32 06 58.23  21.9w 14TZ85    F51  C~1vXl      
2015 01  18.31298  07 46 01.879  +32 06 58.33  21.9w 14TZ85    F51  C~1vXl      
2015 01  18.32630  07 46 01.813  +32 06 58.40  22.1w 14TZ85    F51  C~1vXl      
2015 01  18.33963  07 46 01.749  +32 06 58.46  22.0w 14TZ85    F51  C~1vXl      
2015 01  20.32895  07 45 52.417  +32 07 14.69  22.1w 14TZ85    F51  C~1vXl      
2015 01  20.34087  07 45 52.361  +32 07 14.78  22.1w 14TZ85    F51  C~1vXl      
2015 01  20.35279  07 45 52.305  +32 07 14.85  22.0w 14TZ85    F51  C~1vXl      
2015 01  20.36472  07 45 52.242  +32 07 15.05  21.9w 14TZ85    F51  C~1vXl      
2015 01  22.29302  07 45 43.236  +32 07 29.76  22.2w 14TZ85    F51  C~1vXl      
2015 01  22.30491  07 45 43.187  +32 07 29.66  21.9w 14TZ85    F51  C~1vXl      
2015 01  22.31680  07 45 43.128  +32 07 29.86  21.9w 14TZ85    F51  C~1vXl      
2015 01  22.32872  07 45 43.077  +32 07 29.95  22.0w 14TZ85    F51  C~1vXl      
2015 01  28.30632  07 45 15.492  +32 08 09.01  21.6r 14TZ85    F51  C~1vXl      
2015 01  28.31856  07 45 15.417  +32 08 09.07  21.8r 14TZ85    F51  C~1vXl      
2015 01  28.33075  07 45 15.379  +32 08 09.21  21.7r 14TZ85    F51  C~1vXl      
2017 02  18.10640  07 50 51.89   +31 34 07.7   20.6R 14TZ85    W67  C~2GtH      
2017 02  18.16009  07 50 51.69   +31 34 08.2   21.1R 14TZ85    W67  C~2GtH      
2017 02  20.06050  07 50 44.62   +31 34 08.7   20.2R 14TZ85    W67  C~2GtH      
2017 02  20.11149  07 50 44.40   +31 34 09.0   20.8R 14TZ85    W67  C~2GtH      

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     0.04       0.00     0.02
  2   0.0000     -0.44     0.17       0.09     0.03
  3   0.0001     -1.11     0.08       0.14     0.01
  4   0.0001     -1.64     0.13      -0.21    -0.42
  5   0.0792  -1570.09     0.01     102.50    -0.15
  6   0.0792  -1570.98    -0.07     102.62    -0.03
  7   0.0793  -1571.71    -0.01     102.48    -0.17
  8   0.0793  -1572.60    -0.09     102.53    -0.13
  9   0.1336  -2764.86     0.06      67.74    -0.04
 10   0.1336  -2765.76    -0.16      68.03     0.30
 11   0.1337  -2766.37    -0.09      67.81     0.12
 12   0.1337  -2767.03    -0.09      67.65     0.01
 13   0.8188   3687.70    -0.19   -1166.66     0.27
 14   0.8189   3688.14     0.13   -1166.85     0.03
 15   0.8189   3687.98    -0.16   -1167.09    -0.26
 16   0.8189   3688.16    -0.10   -1166.83    -0.06
 17   1.1165    493.71     0.11    -448.51     0.12
 18   1.1165    492.85     0.06    -448.56     0.10
 19   1.1165    492.01     0.04    -448.65     0.05
 20   1.1166    491.20     0.04    -448.73    -0.01
 21   1.1220    371.67     0.00    -454.23     0.04
 22   1.1221    370.95     0.01    -454.27     0.04
 23   1.1221    370.24     0.02    -454.33     0.01
 24   1.1221    369.42    -0.07    -454.27     0.10
 25   1.1274    254.23    -0.07    -460.47     0.15
 26   1.1274    253.64     0.06    -460.68    -0.03
 27   1.1275    252.86     0.00    -460.62     0.07
 28   1.1275    252.21     0.07    -460.65     0.09
 29   1.1439    -99.50     0.10    -485.26    -0.00
 30   1.1439   -100.45    -0.13    -485.37    -0.06
 31   1.1439   -100.95     0.09    -485.32     0.05
 32   3.2022   4491.96     0.01   -1695.13    -0.42
 33   3.2023   4489.35    -0.00   -1695.13     0.05
 34   3.2075   4400.54     0.20   -1711.98    -0.05
 35   3.2077   4397.72    -0.23   -1712.22     0.16

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.

14TZ85    quality flag:2

Type:         7:4EII  SCATNEAR    7:4EII

axisobj        43.878    43.911    43.846
ecceobj         0.252     0.253     0.251
incobj         14.929    14.929    14.929
qmin           31.749    31.843    31.714
qmax           56.298    56.245    56.213
amean          43.725    43.726    43.725
amin           43.297    43.296    43.286
amax           44.232    44.230    44.211
emean           0.207     0.202     0.192
emin            0.071     0.110     0.059
emax            0.274     0.272     0.273
imean          17.547    17.942    18.020
imin           15.281    15.614    15.381
imax           21.000    20.895    20.974
excite_mean     0.372     0.372     0.371
fracstop        1.000     1.000     1.000
cjmean          2.931     2.931     2.931

libcent 0       178.8    -180.0     175.1
libamp  0       124.1    -180.0     119.7
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       119.3     144.2     107.9
kozaiamp        180.0     180.0     179.9