Orbit Fit and Astrometric record for 88611

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: 88611     
# Created Sun Oct 26 01:36:38 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   63 observations of   63
# Arc:  12.22y
# First observation: 2000/08/01
#  Last observation: 2012/10/20
# Chi-squared of fit:   150.28 DOF:  120 RMS:  0.27
# Min/Max residuals:    -0.64    1.48
# Exact a, adot, b, bdot, g, gdot:
  1.415385E-05  2.109063E-02  1.438892E-06  9.017487E-04  2.275217E-02  5.035202E-04
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.815960  -36.941700    0.247651    0.013847   -0.983794  2451757.791683
# Heliocentric elements and errors
Epoch:              2451758.5000  =  2000/08/02
Mean Anomaly:          141.73721 +/-     0.000
Argument of Peri:      234.55193 +/-     0.000
Long of Asc Node:      304.77960 +/-     0.000
Inclination:             2.58497 +/-     0.000
Eccentricity:         0.02457723 +/-    0.0000
Semi-Major Axis:     44.07790689 +/-    0.0000
Time of Perihelion: 2409675.0589 +/-       0.0
Perihelion:          42.99459404 +/-    0.0000
Aphelion:            45.16121974 +/-    0.0000
Period (y)              292.6440 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.76854270 +/-    0.0000
Ecliptic Y          -27.19703821 +/-    0.0000
Ecliptic Z            0.62595246 +/-    0.0000
Ecliptic XDOT         0.00156534 +/-    0.0000
Ecliptic YDOT         0.00199850 +/-    0.0000
Ecliptic ZDOT         0.00010951 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.93838546 +/-    0.0000
Geocenter to KBO     43.95186567 +/-    0.0000
# Hcoef:  5.61

The following table shows the complete astrometric record for 88611. 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 (88611) followed by the observatory code and reference code for the source of the astrometry.

2000 08  01.29094  21 40 29.66   -13 03 36.8   21.8R 88611     807  Cg1155      
2000 08  01.36718  21 40 29.36   -13 03 38.3         88611     807  Cg1155      
2001 08  20.12602  21 43 45.44   -12 43 33.9   21.0R 88611     807  Cd7926      
2001 08  20.20431  21 43 45.09   -12 43 35.8         88611     807  Cd7926      
2001 08  21.13965  21 43 41.00   -12 43 56.3   21.0R 88611     807  Cd7926      
2001 08  21.21386  21 43 40.67   -12 43 58.0         88611     807  Cd7926      
2001 09  12.23025  21 42 08.90   -12 51 41.2   21.8R 88611     695  Cd7926      
2001 09  12.27730  21 42 08.71   -12 51 42.1         88611     695  Cd7926      
2001 09  18.18911  21 41 46.77   -12 53 34.0   22.6R 88611     688  Cd7926      
2001 09  18.27980  21 41 46.43   -12 53 36.4         88611     688  Cd7926      
2001 09  19.16569  21 41 43.27   -12 53 52.1   21.8R 88611     688  Cd7926      
2001 09  19.29448  21 41 42.80   -12 53 54.3         88611     688  Cd7926      
2001 11  03.01134  21 40 11.74   -13 01 57.4   22.0  88611     304  Ce6601      
2001 11  03.02280  21 40 11.73   -13 01 57.2         88611     304  Ce6601      
2002 08  03.98333  21 49 31.80   -12 10 41.0   22.5R 88611     950  Ch3951      
2002 08  03.99122  21 49 31.75   -12 10 41.8   21.8R 88611     950  Ch3951      
2002 08  04.00021  21 49 31.72   -12 10 42.1   21.9R 88611     950  Ch3951      
2002 08  04.00723  21 49 31.67   -12 10 42.1   21.9R 88611     950  Ch3951      
2002 09  05.35971  21 47 12.43   -12 22 30.4         88611     568  Cg1155      
2002 09  07.35630  21 47 04.27   -12 23 12.1         88611     568  Cg1155      
2002 09  07.42880  21 47 03.97   -12 23 13.6         88611     568  Cg1155      
2002 09  09.20428  21 46 56.79   -12 23 50.2   19.5R 88611     662  Cg3217      
2002 09  09.29464  21 46 56.48   -12 23 50.7         88611     662  Cg3217      
2003 09  03.07624  21 51 56.96   -11 54 31.0   21.8R 88611     304  Ci4512      
2003 09  03.12404  21 51 56.76   -11 54 32.7         88611     304  Ci4512      
2003 10  23.02215  21 49 23.95   -12 08 10.6   22.0R 88611     304  Ci9379      
2003 10  23.15818  21 49 23.76   -12 08 11.7         88611     304  Ci9379      
2003 10  24.01169  21 49 22.60   -12 08 18.7   21.9R 88611     304  Ci9379      
2003 10  24.13110  21 49 22.43   -12 08 19.6         88611     304  Ci9379      
2004 05  25.30093  22 01 19.28   -11 03 21.8   22.3R 88611     304  Ck8659      
2004 05  25.30653  22 01 19.28   -11 03 21.9         88611     304  Ck8659      
2004 05  25.31029  22 01 19.28   -11 03 21.8         88611     304  Ck8659      
2004 05  25.31405  22 01 19.26   -11 03 22.1         88611     304  Ck8659      
2004 05  25.31781  22 01 19.28   -11 03 21.7         88611     304  Ck8659      
2004 05  25.32157  22 01 19.28   -11 03 21.8         88611     304  Ck8659      
2004 05  25.32534  22 01 19.30   -11 03 21.6         88611     304  Ck8659      
2004 05  25.32910  22 01 19.29   -11 03 21.7         88611     304  Ck8659      
2004 05  25.33286  22 01 19.28   -11 03 21.8         88611     304  Ck8659      
2004 05  25.33699  22 01 19.27   -11 03 21.6         88611     304  Ck8659      
2004 05  25.34873  22 01 19.28   -11 03 21.8         88611     304  Ck8659      
2004 05  25.35302  22 01 19.29   -11 03 21.6         88611     304  Ck8659      
2004 05  26.29405  22 01 19.47   -11 03 18.9         88611     304  Ck8659      
2004 05  26.30231  22 01 19.47   -11 03 18.6         88611     304  Ck8659      
2004 05  27.26691  22 01 19.60   -11 03 16.3   21.6R 88611     304  Ck8659      
2004 05  27.37124  22 01 19.59   -11 03 16.1         88611     304  Ck8659      
2004 05  29.31226  22 01 19.57   -11 03 12.5         88611     304  Ck8659      
2004 05  29.32355  22 01 19.57   -11 03 12.4         88611     304  Ck8659      
2004 09  13.02868  21 55 46.34   -11 31 04.0   22.2R 88611     304   l5142      
2004 09  13.26652  21 55 45.40   -11 31 08.9         88611     304   l5142      
2005 06  07.31697  22 05 42.61   -10 35 52.5   22.5R 88611     304  Cn6811      
2005 06  07.34192  22 05 42.57   -10 35 52.4         88611     304  Cn6811      
2005 07  10.35703  22 04 38.16   -10 40 46.9   22.9R 88611     304  Cn9186      
2005 07  10.43502  22 04 37.92   -10 40 48.1         88611     304  Cn9186      
2005 07  11.21186  22 04 35.54   -10 41 00.0         88611     304  Cn9186      
2005 07  11.27812  22 04 35.33   -10 41 01.1         88611     304  Cn9186      
2009 08  20.19006  22 20 00.63   -09 01 25.8   22.2R 88611     688  C~08aA      
2009 08  20.23589  22 20 00.40   -09 01 26.7         88611     688  C~08aA      
2012 10  19.00542  22 29 39.30   -07 56 43.6   22.1R 88611     304  C~0pDN      
2012 10  19.06667  22 29 39.15   -07 56 44.3         88611     304  C~0pDN      
2012 10  19.20360  22 29 38.82   -07 56 46.6         88611     304  C~0pDN      
2012 10  20.00112  22 29 36.92   -07 56 58.5         88611     304  C~0pDN      
2012 10  20.11332  22 29 36.65   -07 57 00.2         88611     304  C~0pDN      
2012 10  20.20082  22 29 36.45   -07 57 01.3         88611     304  C~0pDN      

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    -0.10       0.00    -0.62
  2   0.0002      0.00     0.64       0.00    -0.04
  3   1.0509      0.00     0.10       0.00     0.12
  4   1.0511      0.00     0.08       0.00    -0.06
  5   1.0537      0.00     0.09       0.00    -0.06
  6   1.0539      0.00     0.09       0.00    -0.13
  7   1.1141      0.00     0.27       0.00     0.11
  8   1.1143      0.00     0.19       0.00     0.13
  9   1.1305      0.00     0.60       0.00     0.33
 10   1.1307      0.00     0.46       0.00    -0.41
 11   1.1331      0.00     0.18       0.00     0.01
 12   1.1335      0.00     0.08       0.00     0.13
 13   1.2559      0.00    -0.17       0.00    -0.28
 14   1.2559      0.00    -0.27       0.00    -0.06
 15   2.0060      0.00    -0.21       0.00     0.35
 16   2.0060      0.00    -0.46       0.00    -0.28
 17   2.0060      0.00    -0.33       0.00    -0.39
 18   2.0061      0.00    -0.63       0.00    -0.24
 19   2.0946      0.00    -0.14       0.00    -0.64
 20   2.1001      0.00    -0.04       0.00    -0.26
 21   2.1003      0.00    -0.03       0.00    -0.25
 22   2.1052      0.00    -0.56       0.00     0.12
 23   2.1054      0.00     0.30       0.00     1.48
 24   3.0877      0.00    -0.16       0.00     0.27
 25   3.0878      0.00    -0.10       0.00    -0.38
 26   3.2245      0.00    -0.09       0.00     0.07
 27   3.2248      0.00     0.11       0.00     0.08
 28   3.2272      0.00     0.36       0.00    -0.06
 29   3.2275      0.00     0.36       0.00    -0.03
 30   3.8139      0.00    -0.02       0.00     0.11
 31   3.8139      0.00    -0.04       0.00     0.00
 32   3.8139      0.00    -0.05       0.00     0.09
 33   3.8139      0.00    -0.36       0.00    -0.23
 34   3.8139      0.00    -0.07       0.00     0.16
 35   3.8139      0.00    -0.08       0.00     0.05
 36   3.8139      0.00     0.21       0.00     0.24
 37   3.8139      0.00     0.05       0.00     0.13
 38   3.8139      0.00    -0.11       0.00     0.02
 39   3.8140      0.00    -0.27       0.00     0.20
 40   3.8140      0.00    -0.15       0.00    -0.03
 41   3.8140      0.00    -0.02       0.00     0.15
 42   3.8166      0.00    -0.16       0.00     0.01
 43   3.8166      0.00    -0.17       0.00     0.28
 44   3.8192      0.00     0.06       0.00     0.09
 45   3.8195      0.00    -0.12       0.00     0.06
 46   3.8248      0.00    -0.11       0.00     0.02
 47   3.8249      0.00    -0.09       0.00     0.11
 48   4.1170      0.00    -0.05       0.00    -0.30
 49   4.1177      0.00     0.02       0.00    -0.23
 50   4.8488      0.00     0.48       0.00     0.00
 51   4.8489      0.00     0.17       0.00     0.15
 52   4.9393      0.00     0.39       0.00     0.05
 53   4.9395      0.00     0.45       0.00     0.03
 54   4.9416      0.00     0.49       0.00     0.08
 55   4.9418      0.00     0.49       0.00     0.01
 56   9.0511      0.00     0.27       0.00     0.03
 57   9.0512      0.00    -0.22       0.00     0.22
 58  12.2155      0.00    -0.04       0.00    -0.23
 59  12.2157      0.00     0.00       0.00     0.01
 60  12.2161      0.00     0.14       0.00    -0.20
 61  12.2182      0.00    -0.07       0.00    -0.03
 62  12.2185      0.00    -0.04       0.00    -0.05
 63  12.2188      0.00     0.11       0.00     0.15

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.

88611    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.163    44.163    44.163
ecceobj         0.023     0.023     0.023
incobj          2.581     2.581     2.581
qmin           42.071    42.077    42.062
qmax           46.273    46.265    46.277
amean          44.080    44.080    44.080
amin           43.740    43.738    43.742
amax           44.425    44.424    44.428
emean           0.027     0.027     0.027
emin            0.012     0.012     0.012
emax            0.042     0.042     0.042
imean           4.178     4.178     4.178
imin            3.526     3.525     3.526
imax            4.705     4.705     4.706
excite_mean     0.078     0.078     0.078
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       178.4     178.5     178.5
kozaiamp        180.0     180.0     180.0