Orbit Fit and Astrometric record for 13AS105

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: 13AS105   
# Created Tue Oct 24 01:38:11 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   73 observations of   74
# Arc:   7.43y
# First observation: 2007/09/15
#  Last observation: 2015/02/20
# Chi-squared of fit:   463.32 DOF:  140 RMS:  0.45
# Min/Max residuals:    -1.73    1.35
# Exact a, adot, b, bdot, g, gdot:
  3.462977E-05  2.774191E-01 -5.972249E-06 -3.866348E-02  1.279121E-01 -1.683887E-01
# Covariance matrix:
  3.9155E-10  3.8314E-07 -8.8984E-10  1.5952E-07  5.8411E-10 -8.0287E-07
  3.8314E-07  4.8650E-04 -8.9495E-07  2.0236E-04  5.8616E-07 -1.0171E-03
 -8.8984E-10 -8.9495E-07  2.0294E-09 -3.7283E-07 -1.3316E-09  1.8754E-06
  1.5952E-07  2.0236E-04 -3.7283E-07  8.7271E-05  2.4408E-07 -4.2541E-04
  5.8411E-10  5.8616E-07 -1.3316E-09  2.4408E-07  8.7394E-10 -1.2283E-06
 -8.0287E-07 -1.0171E-03  1.8754E-06 -4.2541E-04 -1.2283E-06  2.1382E-03
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.564008  -11.890667   -0.071611   -0.252278   -0.971210  2454358.734384
# Heliocentric elements and errors
Epoch:              2454358.5000  =  2007/09/15
Mean Anomaly:          340.90890 +/-     0.000
Argument of Peri:      326.16795 +/-     0.000
Long of Asc Node:      106.64886 +/-     0.000
Inclination:            14.57478 +/-     0.015
Eccentricity:         0.64242740 +/-    0.0000
Semi-Major Axis:     16.06322754 +/-    0.0000
Time of Perihelion: 2455605.5274 +/-       0.0
Perihelion:           5.74377000 +/-    0.0000
Aphelion:            26.38268508 +/-    0.0000
Period (y)               64.3810 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            8.40016886 +/-    0.0000
Ecliptic Y           -1.70031804 +/-    0.0000
Ecliptic Z           -1.96590556 +/-    0.0000
Ecliptic XDOT        -0.00238741 +/-    0.0000
Ecliptic YDOT         0.00657062 +/-    0.0000
Ecliptic ZDOT         0.00010525 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    8.79326414 +/-    0.0000
Geocenter to KBO      7.81805064 +/-    0.0000
# Hcoef: 12.15

The following table shows the complete astrometric record for 13AS105. 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 (13AS105) followed by the observatory code and reference code for the source of the astrometry.

2007 09  15.23363  23 39 58.82   -18 03 41.4   21.8V 13AS105   G96  C~0o32      
2007 09  15.25563  23 39 58.42   -18 03 44.5   21.0V 13AS105   G96  C~0o32      
2007 09  15.26076  23 39 58.32   -18 03 44.9   20.9V 13AS105   G96  C~0o32      
2007 09  15.26588  23 39 58.24   -18 03 45.9   21.6V 13AS105   G96  C~0o32      
2009 10  02.32671  02 31 54.22   -02 26 45.2   20.4V 13AS105   G96  C~0o32      
2009 10  02.33288  02 31 54.15   -02 26 46.6   20.9V 13AS105   G96  C~0o32      
2009 10  02.33918  02 31 54.01   -02 26 47.8   20.3V 13AS105   G96  C~0o32      
2009 10  02.34530  02 31 53.97   -02 26 48.1   20.0V 13AS105   G96  C~0o32      
2010 01  15.78676  02 09 48.76   -01 37 48.0         13AS105   C51  S~0Ijq      
2010 01  15.91907  02 09 50.13   -01 37 17.7         13AS105   C51  S~0Ijq      
2010 01  16.05137  02 09 51.71   -01 36 49.3         13AS105   C51  S~0Ijq      
2010 01  16.11759  02 09 52.39   -01 36 34.1         13AS105   C51  S~0Ijq      
2010 01  16.18380  02 09 53.14   -01 36 18.1         13AS105   C51  S~0Ijq      
2010 01  16.24989  02 09 53.84   -01 36 02.3         13AS105   C51  S~0Ijq      
2010 01  16.31611  02 09 54.56   -01 35 46.8         13AS105   C51  S~0Ijq      
2010 01  16.38232  02 09 55.29   -01 35 33.6         13AS105   C51  S~0Ijq      
2010 01  16.51463  02 09 56.78   -01 35 01.4         13AS105   C51  S~0Ijq      
2010 01  16.64693  02 09 58.25   -01 34 30.4         13AS105   C51  S~0Ijq      
2010 11  14.36904  04 33 49.53   +10 12 49.8   19.5V 13AS105   703  C~0o32      
2010 11  14.37653  04 33 49.35   +10 12 49.8   19.9V 13AS105   703  C~0o32      
2010 11  14.38407  04 33 49.10   +10 12 49.3   20.0V 13AS105   703  C~0o32      
2010 11  14.39161  04 33 48.92   +10 12 49.7   19.6V 13AS105   703  C~0o32      
2010 12  04.27716  04 25 44.43   +10 15 18.0   19.2V 13AS105   G96  C~0o32      
2010 12  04.28472  04 25 44.22   +10 15 18.2   19.1V 13AS105   G96  C~0o32      
2010 12  04.29226  04 25 44.04   +10 15 18.4   19.2V 13AS105   G96  C~0o32      
2010 12  04.29982  04 25 43.86   +10 15 18.5   19.1V 13AS105   G96  C~0o32      
2010 12  15.23440  04 21 18.46   +10 23 35.5   19.2V 13AS105   G96  C~0o32      
2010 12  15.24060  04 21 18.32   +10 23 35.9   19.3V 13AS105   G96  C~0o33      
2010 12  15.24686  04 21 18.18   +10 23 36.4   19.2V 13AS105   G96  C~0o33      
2010 12  15.25317  04 21 18.03   +10 23 36.6   19.2V 13AS105   G96  C~0o33      
2012 01  05.15701  06 49 43.29   +21 29 09.5   20.1V 13AS105   691  C~0o33      
2012 01  05.17480  06 49 42.83   +21 29 11.2   20.2V 13AS105   691  C~0o33      
2012 01  05.19259  06 49 42.34   +21 29 13.7   20.3V 13AS105   691  C~0o33      
2013 01  07.35153  09 03 09.86   +23 19 51.4   20.6V 13AS105   691  C~0nie      
2013 01  07.36924  09 03 09.55   +23 19 54.1   21.2V 13AS105   691  C~0nie      
2013 01  07.38695  09 03 09.22   +23 19 58.0   20.9V 13AS105   691  C~0nie      
2013 01  15.07146  09 00 34.55   +23 41 19.4   20.2R 13AS105   J04  C~0nie      
2013 01  15.08303  09 00 34.30   +23 41 21.2   20.6R 13AS105   J04  C~0nie      
2013 01  15.09461  09 00 34.03   +23 41 23.1   20.6R 13AS105   J04  C~0nie      
2013 01  15.10618  09 00 33.80   +23 41 25.2   20.9R 13AS105   J04  C~0nie      
2013 01  15.93094  09 00 16.24   +23 43 41.6   20.2R 13AS105   J04  C~0nie      
2013 01  15.95115  09 00 15.80   +23 43 44.9   20.0R 13AS105   J04  C~0nie      
2013 01  15.97141  09 00 15.36   +23 43 48.5   20.0R 13AS105   J04  C~0nie      
2013 01  16.272865 09 00 08.83   +23 44 38.3   20.4R 13AS105   711  C~0nie      
2013 01  16.276500 09 00 08.75   +23 44 38.9   20.4R 13AS105   711  C~0nie      
2013 01  16.280126 09 00 08.67   +23 44 39.6   20.4R 13AS105   711  C~0nie      
2013 01  16.283752 09 00 08.61   +23 44 40.4   20.2R 13AS105   711  C~0nie      
2013 01  16.287377 09 00 08.53   +23 44 41.0   20.5R 13AS105   711  C~0nie      
2013 01  16.58764  09 00 01.97   +23 45 31.1   20.1R 13AS105   F65  C~0nie      
2013 01  16.59427  09 00 01.83   +23 45 32.2   19.8R 13AS105   F65  C~0nie      
2013 01  16.60027  09 00 01.68   +23 45 33.4   20.0R 13AS105   F65  C~0nie      
2013 01  17.31231  08 59 46.39   +23 47 30.2         13AS105   H06  C~0nie      
2013 01  17.31531  08 59 46.32   +23 47 31.0   20.8V 13AS105   H06  C~0nie      
2013 01  17.33086  08 59 45.94   +23 47 33.6   20.8V 13AS105   G84  C~0nie      
2013 01  17.35751  08 59 45.35   +23 47 38.0   20.4V 13AS105   G84  C~0nie      
2013 01  17.38235  08 59 44.78   +23 47 41.9   20.5V 13AS105   G84  C~0nie      
2013 01  18.329896 08 59 24.09   +23 50 18.5   20.4V 13AS105   H21  C~0nie      
2013 01  18.336170 08 59 23.94   +23 50 19.2   20.5V 13AS105   H21  C~0nif      
2013 01  18.342630 08 59 23.80   +23 50 19.9   20.7V 13AS105   H21  C~0nif      
2013 01  18.348799 08 59 23.65   +23 50 20.9   20.4V 13AS105   H21  C~0nif      
2013 01  20.27530  08 58 41.06   +23 55 37.3   20.4V 13AS105   691  C~0o33      
2013 01  20.29299  08 58 40.63   +23 55 40.1   20.6V 13AS105   691  C~0o33      
2013 01  20.31069  08 58 40.25   +23 55 43.0   20.5V 13AS105   691  C~0o33      
2013 01  22.27175  08 57 56.26   +24 01 00.8   20.2V 13AS105   G96  C~0o33      
2013 01  22.27889  08 57 56.08   +24 01 02.0   20.4V 13AS105   G96  C~0o33      
2013 01  22.28602  08 57 55.90   +24 01 02.5   20.2V 13AS105   G96  C~0o33      
2013 01  22.29317  08 57 55.76   +24 01 04.4   20.5V 13AS105   G96  C~0o33      
2013 02  19.27066  08 47 30.58   +25 05 31.8   20.5V 13AS105   G96  C~0p6Y      
2013 02  19.28150  08 47 30.37   +25 05 32.1   19.9V 13AS105   G96  C~0p6Y      
2013 02  19.29228  08 47 30.15   +25 05 33.4   20.4V 13AS105   G96  C~0p6Y      
2013 02  19.30297  08 47 29.94   +25 05 34.4   20.3V 13AS105   G96  C~0p6Y      
2015 02  20.56929  11 26 10.563  +18 29 36.98  22.1w 13AS105   F51  C~1LLe      
2015 02  20.58286  11 26 10.331  +18 29 38.61  22.3w 13AS105   F51  C~1LLe      
2015 02  20.59647  11 26 10.137  +18 29 40.99  21.8w 13AS105   F51  C~1LLe      

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 (  -0.70)      0.00 (   6.07)
  2   0.0001      0.00     0.24       0.00     0.10
  3   0.0001      0.00     0.19       0.00     0.38
  4   0.0001      0.00     0.43       0.00     0.05
  5   2.0482      0.00    -0.13       0.00     0.51
  6   2.0482      0.00     0.34       0.00    -0.03
  7   2.0482      0.00    -0.21       0.00    -0.34
  8   2.0482      0.00     0.70       0.00     0.21
  9   2.3369      0.00     0.05       0.00     1.35
 10   2.3373      0.00    -0.94       0.00     1.19
 11   2.3376      0.00     1.06       0.00    -0.91
 12   2.3378      0.00     0.34       0.00    -1.00
 13   2.3380      0.00     0.63       0.00    -0.29
 14   2.3382      0.00     0.15       0.00     0.23
 15   2.3384      0.00    -0.09       0.00     0.40
 16   2.3385      0.00    -0.22       0.00    -1.73
 17   2.3389      0.00    -0.12       0.00    -0.20
 18   2.3393      0.00    -0.48       0.00     0.08
 19   3.1653      0.00     0.57       0.00     0.49
 20   3.1653      0.00     0.47       0.00     0.59
 21   3.1654      0.00    -0.67       0.00     0.19
 22   3.1654      0.00    -0.76       0.00     0.69
 23   3.2198      0.00     0.65       0.00    -0.15
 24   3.2199      0.00     0.42       0.00    -0.18
 25   3.2199      0.00     0.62       0.00    -0.21
 26   3.2199      0.00     0.84       0.00    -0.35
 27   3.2498      0.00     0.36       0.00    -0.28
 28   3.2498      0.00     0.47       0.00    -0.26
 29   3.2499      0.00     0.60       0.00    -0.13
 30   3.2499      0.00     0.60       0.00    -0.32
 31   4.3064      0.00     0.24       0.00    -0.13
 32   4.3065      0.00     0.28       0.00    -0.64
 33   4.3065      0.00    -0.11       0.00    -0.34
 34   5.3145      0.00    -0.49       0.00    -0.10
 35   5.3145      0.00     0.02       0.00    -0.35
 36   5.3146      0.00     0.24       0.00     0.60
 37   5.3356      0.00     0.64       0.00     0.06
 38   5.3357      0.00     0.68       0.00    -0.07
 39   5.3357      0.00     0.42       0.00    -0.10
 40   5.3357      0.00     0.76       0.00     0.08
 41   5.3380      0.00     0.16       0.00    -0.23
 42   5.3380      0.00     0.16       0.00    -0.34
 43   5.3381      0.00     0.20       0.00    -0.15
 44   5.3389      0.00    -0.15       0.00    -0.38
 45   5.3389      0.00    -0.15       0.00    -0.39
 46   5.3389      0.00    -0.15       0.00    -0.30
 47   5.3389      0.00     0.15       0.00    -0.10
 48   5.3390      0.00     0.15       0.00    -0.11
 49   5.3398      0.00     0.20       0.00     0.08
 50   5.3398      0.00     0.30       0.00     0.10
 51   5.3398      0.00     0.04       0.00     0.32
 52   5.3418      0.00     0.93       0.00    -0.45
 53   5.3418      0.00     0.88       0.00    -0.15
 54   5.3418      0.00     0.26       0.00    -0.13
 55   5.3419      0.00     0.34       0.00    -0.14
 56   5.3420      0.00     0.11       0.00    -0.34
 57   5.3445      0.00     0.57       0.00     0.25
 58   5.3446      0.00     0.43       0.00    -0.08
 59   5.3446      0.00     0.51       0.00    -0.44
 60   5.3446      0.00     0.34       0.00    -0.45
 61   5.3499      0.00     0.15       0.00     0.15
 62   5.3499      0.00    -0.24       0.00     0.04
 63   5.3500      0.00     0.13       0.00     0.04
 64   5.3553      0.00     0.75       0.00    -0.20
 65   5.3554      0.00     0.52       0.00    -0.16
 66   5.3554      0.00     0.30       0.00    -0.82
 67   5.3554      0.00     0.68       0.00    -0.08
 68   5.4320      0.00    -0.23       0.00     0.76
 69   5.4320      0.00    -0.04       0.00    -0.10
 70   5.4321      0.00    -0.03       0.00     0.05
 71   5.4321      0.00     0.11       0.00    -0.08
 72   7.4342      0.00     0.07       0.00     0.06
 73   7.4342      0.00     0.03       0.00    -0.29
 74   7.4343      0.00     0.55       0.00     0.11

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.

13AS105    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        16.106    16.106    16.107
ecceobj         0.643     0.643     0.643
incobj         14.587    14.587    14.587
qmin            5.742     5.742     5.739
qmax           26.470    41.035    26.471
amean          15.240    17.584    14.614
amin           14.374    13.570    12.723
amax           16.106    23.604    16.107
emean           0.620     0.645     0.593
emin            0.597     0.562     0.528
emax            0.643     0.738     0.643
imean          13.161    13.351    12.933
imin           13.008    12.156    10.017
imax           13.313    15.427    16.598
excite_mean     0.661     0.685     0.635
fracstop        0.000     0.003     0.002
cjmean          3.064     2.877     3.158

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       329.3     148.2     163.6
kozaiamp          3.2     177.0     167.3