Orbit Fit and Astrometric record for 13CV82

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: 13CV82    
# Created Mon Dec 18 02:37:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   28 observations of   28
# Arc:   4.38y
# First observation: 2013/01/08
#  Last observation: 2017/05/26
# Chi-squared of fit:    67.59 DOF:   50 RMS:  0.27
# Min/Max residuals:    -1.58    0.60
# Exact a, adot, b, bdot, g, gdot:
  3.236671E-05  1.851783E-01  1.146921E-05  6.156309E-02  9.337909E-02 -3.402839E-02
# Covariance matrix:
  2.5663E-13 -2.7802E-13  3.0400E-14 -1.2740E-13  4.1965E-13 -4.9294E-13
 -2.7802E-13  4.3077E-13 -4.8362E-14  1.9527E-13 -5.2078E-13  7.2786E-13
  3.0400E-14 -4.8362E-14  7.7677E-14 -4.6655E-14  6.2881E-14 -8.6395E-14
 -1.2740E-13  1.9527E-13 -4.6655E-14  1.1454E-13 -2.7063E-13  3.5607E-13
  4.1965E-13 -5.2078E-13  6.2881E-14 -2.7063E-13  1.0089E-12 -1.0737E-12
 -4.9294E-13  7.2786E-13 -8.6395E-14  3.5607E-13 -1.0737E-12  1.3553E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.547057  135.067538    0.440108   -0.023625   -0.876948  2456301.114410
# Heliocentric elements and errors
Epoch:              2456300.5000  =  2013/01/08
Mean Anomaly:          340.05633 +/-     0.001
Argument of Peri:       40.44082 +/-     0.002
Long of Asc Node:      137.14600 +/-     0.000
Inclination:            18.53174 +/-     0.000
Eccentricity:         0.37704280 +/-    0.0001
Semi-Major Axis:     17.12447368 +/-    0.1235
Time of Perihelion: 2457734.4262 +/-     264.5
Perihelion:          10.66781424 +/-    0.0769
Aphelion:            23.58113311 +/-    0.1700
Period (y)               70.8654 +/-      0.77
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -7.88781446 +/-    0.0001
Ecliptic Y            8.49412412 +/-    0.0001
Ecliptic Z           -0.28901606 +/-    0.0000
Ecliptic XDOT        -0.00316922 +/-    0.0000
Ecliptic YDOT        -0.00451241 +/-    0.0000
Ecliptic ZDOT         0.00183142 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   11.59538636 +/-    0.0001
Geocenter to KBO     10.70912529 +/-    0.0001
# Hcoef: 11.48

The following table shows the complete astrometric record for 13CV82. 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 (13CV82) followed by the observatory code and reference code for the source of the astrometry.

2013 01  08.613632 09 08 14.860  +14 50 12.47  21.2R 13CV82    F51  C~0oUA      
2013 01  10.543544 09 07 50.785  +14 53 01.26  21.2R 13CV82    F51  C~0oUA      
2013 01  10.557367 09 07 50.602  +14 53 02.40  21.4R 13CV82    F51  C~0oUA      
2013 01  10.571216 09 07 50.410  +14 53 03.56        13CV82    F51  C~0oUA      
2013 02  03.35615  09 02 13.904  +15 31 11.59  22.2w 13CV82    F51  C~0oUA      
2013 02  03.37082  09 02 13.693  +15 31 13.08  22.1w 13CV82    F51  C~0oUA      
2013 02  03.38547  09 02 13.469  +15 31 14.68  21.9w 13CV82    F51  C~0oUA      
2013 02  04.304286 09 01 59.805  +15 32 47.10  21.4R 13CV82    568  C~0oUA      
2013 02  04.305619 09 01 59.781  +15 32 47.21  21.5R 13CV82    568  C~0oUA      
2013 02  04.310999 09 01 59.707  +15 32 47.79  21.9R 13CV82    568  C~0oUA      
2013 02  06.317929 09 01 29.869  +15 36 09.71  21.6R 13CV82    568  C~0oUA      
2013 02  06.319180 09 01 29.854  +15 36 09.75  21.5R 13CV82    568  C~0oUA      
2013 02  06.320435 09 01 29.828  +15 36 09.91  21.5R 13CV82    568  C~0oUA      
2013 02  10.342805 09 00 30.401  +15 42 53.61  21.4R 13CV82    568  C~0oUA      
2013 02  10.344057 09 00 30.386  +15 42 53.67  21.6R 13CV82    568  C~0oUA      
2013 02  10.345311 09 00 30.368  +15 42 53.87  21.7R 13CV82    568  C~0oUA      
2013 02  11.93637  09 00 07.11   +15 45 32.6   21.3R 13CV82    J04  C~0oUA      
2013 02  11.94408  09 00 07.00   +15 45 33.3   21.5R 13CV82    J04  C~0oUA      
2013 02  11.95178  09 00 06.91   +15 45 34.2   21.5R 13CV82    J04  C~0oUA      
2015 01  20.43775  10 45 05.173  +14 25 34.47  22.3w 13CV82    F51  C~1j9Q      
2015 01  20.46454  10 45 04.934  +14 25 37.90  22.3w 13CV82    F51  C~1j9Q      
2015 01  20.47799  10 45 04.777  +14 25 39.48  22.5w 13CV82    F51  C~1j9Q      
2015 01  22.44994  10 44 46.746  +14 29 33.33  22.3w 13CV82    F51  C~1j9Q      
2015 01  22.46353  10 44 46.612  +14 29 35.25  22.2w 13CV82    F51  C~1j9Q      
2015 01  22.47718  10 44 46.473  +14 29 36.98  22.2w 13CV82    F51  C~1j9Q      
2015 01  22.49087  10 44 46.339  +14 29 38.63  22.2w 13CV82    F51  C~1j9Q      
2017 05  26.17408  12 09 05.44   +14 00 42.3   21.9R 13CV82    G37  C~2GiZ      
2017 05  26.24021  12 09 05.32   +14 00 39.8         13CV82    G37  C~2GiZ      

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    -1.58
  2   0.0053      0.00     0.31       0.00    -0.12
  3   0.0053      0.00     0.26       0.00    -0.20
  4   0.0054      0.00     0.08       0.00    -0.26
  5   0.0705      0.00     0.10       0.00    -0.22
  6   0.0705      0.00     0.28       0.00    -0.21
  7   0.0706      0.00     0.26       0.00    -0.09
  8   0.0731      0.00     0.09       0.00    -0.03
  9   0.0731      0.00     0.03       0.00    -0.05
 10   0.0731      0.00     0.14       0.00    -0.02
 11   0.0786      0.00     0.13       0.00     0.03
 12   0.0786      0.00     0.19       0.00    -0.06
 13   0.0786      0.00     0.08       0.00    -0.03
 14   0.0896      0.00     0.07       0.00     0.01
 15   0.0896      0.00     0.13       0.00    -0.05
 16   0.0896      0.00     0.14       0.00     0.02
 17   0.0940      0.00     0.17       0.00     0.03
 18   0.0940      0.00     0.23       0.00    -0.04
 19   0.0940      0.00     0.60       0.00     0.08
 20   2.0310      0.00     0.08       0.00    -0.30
 21   2.0311      0.00     0.18       0.00    -0.04
 22   2.0311      0.00    -0.32       0.00    -0.05
 23   2.0365      0.00     0.25       0.00    -0.31
 24   2.0366      0.00     0.23       0.00    -0.03
 25   2.0366      0.00     0.14       0.00     0.06
 26   2.0366      0.00     0.14       0.00     0.06
 27   4.3766      0.00    -0.09       0.00     0.03
 28   4.3768      0.00     0.13       0.00     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.

13CV82    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        17.120    17.120    17.120
ecceobj         0.373     0.373     0.373
incobj         18.534    18.534    18.534
qmin           10.245    10.232    10.519
qmax           25.299    29.960    23.847
amean          17.493    18.738    17.168
amin           17.120    17.120    17.120
amax           17.837    20.378    17.215
emean           0.400     0.428     0.382
emin            0.373     0.373     0.373
emax            0.418     0.471     0.387
imean          16.757    15.686    16.948
imin           16.620    13.275    16.816
imax           17.177    17.393    17.177
excite_mean     0.493     0.507     0.480
fracstop        0.001     0.012     0.000
cjmean          3.061     2.980     3.090

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        49.9     154.0      45.2
kozaiamp          6.2     179.0       4.5