Orbit Fit and Astrometric record for 14JT80

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: 14JT80    
# Created Thu Dec 14 02:38:02 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:   2.02y
# First observation: 2013/06/09
#  Last observation: 2015/06/15
Preliminary a, adot, b, bdot, g, gdot:
  -0.000306   0.037313   0.000024  -0.002133   0.031704   0.000000
# Chi-squared of fit:     8.29 DOF:   42 RMS:  0.10
# Min/Max residuals:    -0.25    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.840568E-05  3.676696E-02 -1.551908E-06 -2.109751E-03  3.136562E-02 -5.336194E-03
# Covariance matrix:
  4.8613E-13 -6.9470E-13 -1.1558E-14  2.9237E-14 -2.4904E-13 -5.9620E-12
 -6.9470E-13  1.5016E-12  2.7154E-14 -7.5639E-14  5.1706E-13  1.5569E-11
 -1.1558E-14  2.7154E-14  2.8194E-13 -1.7406E-13  2.1427E-14  3.1216E-13
  2.9237E-14 -7.5639E-14 -1.7406E-13  1.3903E-13 -3.1787E-14 -8.6247E-13
 -2.4904E-13  5.1706E-13  2.1427E-14 -3.1787E-14  6.8110E-13  6.0132E-12
 -5.9620E-12  1.5569E-11  3.1216E-13 -8.6247E-13  6.0132E-12  1.7740E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   14.535278 -110.404450   -0.157839    0.252344   -0.973253  2456452.873328
# Heliocentric elements and errors
Epoch:              2456450.5000  =  2013/06/07
Mean Anomaly:          328.66224 +/-     0.043
Argument of Peri:      151.08817 +/-     0.080
Long of Asc Node:      146.05868 +/-     0.002
Inclination:            14.49894 +/-     0.000
Eccentricity:         0.21526915 +/-    0.0003
Semi-Major Axis:     39.44271428 +/-    0.0069
Time of Perihelion: 2464326.6506 +/-      10.7
Perihelion:          30.95191463 +/-    0.0131
Aphelion:            47.93351394 +/-    0.0146
Period (y)              247.7185 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -10.96151091 +/-    0.0003
Ecliptic Y          -29.92024430 +/-    0.0008
Ecliptic Z            8.00164098 +/-    0.0002
Ecliptic XDOT         0.00314273 +/-    0.0000
Ecliptic YDOT        -0.00073995 +/-    0.0000
Ecliptic ZDOT        -0.00029502 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.85425389 +/-    0.0007
Geocenter to KBO     31.88204256 +/-    0.0008
# Hcoef:  7.16

The following table shows the complete astrometric record for 14JT80. 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 (14JT80) followed by the observatory code and reference code for the source of the astrometry.

2013 06  09.37255  16 40 23.668  -07 30 19.49  22.1w 14JT80    F51  C~1vXU      
2013 06  09.38648  16 40 23.578  -07 30 19.58  22.4w 14JT80    F51  C~1vXU      
2013 06  09.40039  16 40 23.501  -07 30 19.35  21.8w 14JT80    F51  C~1vXU      
2014 05  07.50105  16 51 56.648  -08 02 41.46  22.2w 14JT80    F51  C~1vXU      
2014 05  07.51372  16 51 56.592  -08 02 41.23  22.4w 14JT80    F51  C~1vXU      
2014 05  07.52639  16 51 56.509  -08 02 40.92  22.7w 14JT80    F51  C~1vXU      
2014 05  07.53906  16 51 56.458  -08 02 40.36  22.6w 14JT80    F51  C~1vXU      
2014 05  23.42201  16 50 28.996  -07 58 04.36  22.5w 14JT80    F51  C~1vXU      
2014 05  23.43486  16 50 28.920  -07 58 04.23  22.4w 14JT80    F51  C~1vXU      
2014 05  23.44771  16 50 28.852  -07 58 03.86  22.3w 14JT80    F51  C~1vXU      
2014 05  23.46063  16 50 28.774  -07 58 04.00  22.3w 14JT80    F51  C~1vXU      
2014 07  26.31945  16 44 56.395  -07 58 50.30  22.3w 14JT80    F51  C~1vXU      
2014 07  26.33134  16 44 56.356  -07 58 50.40  22.4w 14JT80    F51  C~1vXU      
2014 07  26.34320  16 44 56.314  -07 58 50.76  22.4w 14JT80    F51  C~1vXU      
2015 05  22.48987  16 59 05.766  -08 22 30.67  22.3w 14JT80    F51  C~1vXU      
2015 05  22.50247  16 59 05.689  -08 22 30.53  22.5w 14JT80    F51  C~1vXU      
2015 05  22.51500  16 59 05.618  -08 22 30.40  22.6w 14JT80    F51  C~1vXU      
2015 05  25.46118  16 58 48.530  -08 21 49.89  22.2w 14JT80    F51  C~1vXU      
2015 05  25.47347  16 58 48.473  -08 21 49.67  22.6w 14JT80    F51  C~1vXU      
2015 05  25.48568  16 58 48.397  -08 21 49.36  22.3w 14JT80    F51  C~1vXU      
2015 05  25.49796  16 58 48.308  -08 21 49.27  22.3w 14JT80    F51  C~1vXU      
2015 06  15.36294  16 56 43.747  -08 18 50.80  22.3w 14JT80    F51  C~1vXU      
2015 06  15.37543  16 56 43.676  -08 18 50.72  22.4w 14JT80    F51  C~1vXU      
2015 06  15.38797  16 56 43.609  -08 18 50.64  22.4w 14JT80    F51  C~1vXU      

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     0.10
  2   0.0000     -1.31    -0.04      -0.28    -0.10
  3   0.0001     -2.48     0.03      -0.21     0.05
  4   0.9093  10476.80    -0.06    -517.95    -0.01
  5   0.9094  10475.94     0.09    -517.83    -0.01
  6   0.9094  10474.68    -0.16    -517.69     0.01
  7   0.9094  10473.85     0.02    -517.23     0.34
  8   0.9529   9146.47    -0.01    -417.04    -0.07
  9   0.9529   9145.33    -0.00    -417.07    -0.12
 10   0.9530   9144.28     0.09    -416.84     0.08
 11   0.9530   9143.15     0.11    -417.13    -0.25
 12   1.1278   4252.20    -0.04   -1132.76    -0.04
 13   1.1279   4251.64    -0.04   -1132.94     0.05
 14   1.1279   4251.07    -0.05   -1133.38    -0.12
 15   1.9497  16977.71    -0.04    -864.30     0.03
 16   1.9497  16976.55    -0.09    -864.31    -0.02
 17   1.9497  16975.49    -0.04    -864.32    -0.07
 18   1.9578  16717.07    -0.10    -856.74    -0.02
 19   1.9578  16716.20     0.14    -856.63     0.07
 20   1.9579  16715.04     0.07    -856.47     0.22
 21   1.9579  16713.71    -0.16    -856.55     0.11
 22   2.0150  14846.62    -0.00    -918.90    -0.13
 23   2.0151  14845.56     0.06    -918.96    -0.08
 24   2.0151  14844.55     0.19    -919.01    -0.03

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.

14JT80    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.356    39.371    39.341
ecceobj         0.216     0.217     0.216
incobj         14.500    14.501    14.500
qmin           28.484    28.775    28.169
qmax           51.249    50.790    51.431
amean          39.455    39.456    39.455
amin           38.964    38.942    38.964
amax           40.061    40.055    40.030
emean           0.234     0.230     0.245
emin            0.189     0.190     0.189
emax            0.279     0.271     0.287
imean          12.422    12.739    11.657
imin            9.784    10.554     9.438
imax           14.134    14.023    14.197
excite_mean     0.319     0.319     0.319
fracstop        1.000     1.000     1.000
cjmean          2.936     2.936     2.936

libcent 0       179.5     180.7     180.5
libamp  0       103.9     112.5      96.9
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        88.4      92.3      92.4
kozaiamp         70.1      60.2      89.5