Orbit Fit and Astrometric record for 79969

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: 79969     
# Created Tue Dec 12 02:36:31 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   49 observations of   49
# Arc:  14.09y
# First observation: 1999/02/11
#  Last observation: 2013/03/14
# Chi-squared of fit:   305.54 DOF:   92 RMS:  0.44
# Min/Max residuals:    -1.24    1.65
# Exact a, adot, b, bdot, g, gdot:
  1.760124E-05  3.663565E-02  2.376588E-08 -2.030754E-03  3.197075E-02  1.534627E-03
# 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
   -0.177440  157.804069    0.261424   -0.003193   -0.958511  2451220.929613
# Heliocentric elements and errors
Epoch:              2451220.5000  =  1999/02/11
Mean Anomaly:           23.99140 +/-     0.000
Argument of Peri:      154.99433 +/-     0.000
Long of Asc Node:      334.23913 +/-     0.000
Inclination:             3.18547 +/-     0.000
Eccentricity:         0.08026957 +/-    0.0000
Semi-Major Axis:     34.73640221 +/-    0.0000
Time of Perihelion: 2446237.0646 +/-       0.0
Perihelion:          31.94812624 +/-    0.0000
Aphelion:            37.52467817 +/-    0.0000
Period (y)              204.7319 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.74127291 +/-    0.0000
Ecliptic Y           12.41993593 +/-    0.0000
Ecliptic Z           -0.09686328 +/-    0.0000
Ecliptic XDOT        -0.00130808 +/-    0.0000
Ecliptic YDOT        -0.00284640 +/-    0.0000
Ecliptic ZDOT        -0.00017431 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.23051693 +/-    0.0000
Geocenter to KBO     31.27859902 +/-    0.0000
# Hcoef:  7.49

The following table shows the complete astrometric record for 79969. 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 (79969) followed by the observatory code and reference code for the source of the astrometry.

1999 02  11.42887  10 37 38.45   +08 28 40.5   22.1R 79969     568  Ca4193      
1999 02  11.50747  10 37 37.99   +08 28 43.1   22.1R 79969     568  Ca4193      
1999 02  17.57866  10 37 03.12   +08 32 02.5   22.1R 79969     568  Ca4193      
1999 02  17.59535  10 37 02.97   +08 32 03.2   22.1R 79969     568  Ca4193      
1999 03  10.40940  10 35 00.84   +08 43 42.1   22.1R 79969     568  Ca4506      
1999 04  09.26927  10 32 30.78   +08 57 55.7   22.2R 79969     696  Ca4506      
1999 04  09.32907  10 32 30.51   +08 57 57.3   22.2R 79969     696  Ca4506      
1999 04  09.35016  10 32 30.46   +08 57 57.8   22.2R 79969     696  Ca4506      
1999 04  10.30684  10 32 26.69   +08 58 18.5   22.2R 79969     696  Ca4506      
1999 04  12.40624  10 32 18.59   +08 59 04.7   22.5R 79969     568  Ca4506      
1999 04  12.44895  10 32 18.42   +08 59 05.6   22.5R 79969     568  Ca4506      
1999 04  14.18644  10 32 12.08   +08 59 41.9   22.2R 79969     695  Ca9922      
1999 04  14.19257  10 32 12.08   +08 59 42.1   22.7R 79969     695  Ca9922      
1999 04  14.19639  10 32 12.07   +08 59 42.2   22.3R 79969     695  Ca9922      
1999 04  14.28258  10 32 11.76   +08 59 44.1   22.7R 79969     695  Ca9922      
1999 04  14.28666  10 32 11.73   +08 59 45.5   23.5R 79969     695  Ca9922      
1999 04  14.29047  10 32 11.65   +08 59 43.6   23.0R 79969     695  Ca9922      
1999 04  15.15214  10 32 08.69   +09 00 01.4   22.4R 79969     695  Ca9922      
1999 04  15.15757  10 32 08.65   +09 00 01.5   22.3R 79969     695  Ca9922      
1999 04  15.16139  10 32 08.65   +09 00 01.3   22.4R 79969     695  Ca9922      
1999 04  15.27212  10 32 08.32   +09 00 03.3   22.2R 79969     695  Ca9922      
1999 04  15.27633  10 32 08.29   +09 00 03.4   22.5R 79969     695  Ca9922      
1999 04  15.28015  10 32 08.26   +09 00 03.5   22.4R 79969     695  Ca9922      
1999 04  15.28463  10 32 08.26   +09 00 03.9   22.4V 79969     695  Ca9922      
1999 04  15.28868  10 32 08.26   +09 00 03.8   22.5V 79969     695  Ca9922      
1999 04  15.29250  10 32 08.22   +09 00 04.4   22.6V 79969     695  Ca9922      
2001 02  25.46933  10 51 32.50   +06 49 25.6   22.0R 79969     568  Cf1463      
2001 02  25.51030  10 51 32.28   +06 49 27.0         79969     568  Cf1463      
2001 03  24.21999  10 49 00.29   +07 04 25.3   21.9R 79969     695  Cf1463      
2001 03  24.34096  10 48 59.64   +07 04 29.2         79969     695  Cf1463      
2002 02  04.57934  11 01 02.91   +05 43 51.7   21.8R 79969     568  Cf1463      
2002 02  05.55484  11 00 58.03   +05 44 20.2         79969     568  Cf1463      
2002 02  05.61452  11 00 57.72   +05 44 21.6         79969     568  Cf1463      
2002 02  13.345046 11 00 17.40   +05 48 19.3         79969     645  C~1e25      
2002 02  13.345868 11 00 17.39   +05 48 19.3         79969     645  C~1e25      
2002 02  13.348356 11 00 17.39   +05 48 19.4         79969     645  C~1e25      
2002 03  05.224266 10 58 24.44   +05 59 32.0   22.0V 79969     645  C~1SDP      
2002 03  05.225096 10 58 24.43   +05 59 32.0   21.7V 79969     645  C~1SDP      
2002 03  05.227583 10 58 24.42   +05 59 32.1   23.3V 79969     645  C~1SDP      
2002 03  20.21598  10 56 58.80   +06 08 06.2   21.5R 79969     695  Cf4341      
2002 03  20.34215  10 56 58.11   +06 08 10.7         79969     695  Cf4341      
2003 03  30.22932  11 03 39.57   +05 19 05.2   22.1R 79969     695  Ch7806      
2003 03  30.32694  11 03 39.06   +05 19 08.6         79969     695  Ch7806      
2003 03  31.27632  11 03 34.19   +05 19 38.3         79969     695  Ch7806      
2004 02  22.36548  11 14 32.99   +04 03 55.1   22.6R 79969     695  Ck0845      
2004 02  22.41658  11 14 32.69   +04 03 56.8         79969     695  Ck0845      
2013 03  14.29273  12 18 31.11   -03 51 06.8   22.6R 79969     695  C~0ulN      
2013 03  14.40251  12 18 30.49   -03 51 03.1         79969     695  C~0ulN      
2013 03  14.46308  12 18 30.16   -03 51 01.0         79969     695  C~0ulN      

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    -0.23       0.00     1.41
  2   0.0002      0.00    -0.03       0.00    -0.20
  3   0.0168      0.00     0.16       0.00    -0.19
  4   0.0169      0.00    -0.61       0.00    -0.05
  5   0.0739      0.00    -0.28       0.00    -0.23
  6   0.1556      0.00    -0.19       0.00    -0.79
  7   0.1558      0.00    -0.56       0.00    -0.53
  8   0.1558      0.00    -0.03       0.00    -0.51
  9   0.1585      0.00     0.33       0.00    -1.24
 10   0.1642      0.00    -0.37       0.00    -0.49
 11   0.1643      0.00    -0.47       0.00    -0.49
 12   0.1691      0.00    -0.35       0.00     0.06
 13   0.1691      0.00    -0.01       0.00     0.14
 14   0.1691      0.00     0.05       0.00     0.16
 15   0.1693      0.00     0.15       0.00     0.33
 16   0.1694      0.00    -0.08       0.00     1.65
 17   0.1694      0.00    -1.07       0.00    -0.32
 18   0.1717      0.00    -0.00       0.00     0.37
 19   0.1717      0.00    -0.31       0.00     0.36
 20   0.1718      0.00    -0.11       0.00     0.09
 21   0.1721      0.00     0.90       0.00    -0.08
 22   0.1721      0.00     0.67       0.00    -0.06
 23   0.1721      0.00     0.43       0.00    -0.03
 24   0.1721      0.00     0.66       0.00     0.28
 25   0.1721      0.00     0.88       0.00     0.10
 26   0.1721      0.00     0.48       0.00     0.63
 27   2.0398      0.00     0.96       0.00     0.40
 28   2.0399      0.00     1.31       0.00     0.40
 29   2.1130      0.00     0.16       0.00     0.15
 30   2.1134      0.00     0.18       0.00     0.26
 31   2.9819      0.00     0.30       0.00     0.24
 32   2.9846      0.00    -0.16       0.00     0.27
 33   2.9848      0.00    -0.24       0.00    -0.08
 34   3.0059      0.00    -0.15       0.00    -0.11
 35   3.0059      0.00    -0.23       0.00    -0.13
 36   3.0059      0.00    -0.03       0.00    -0.11
 37   3.0604      0.00     0.10       0.00    -0.30
 38   3.0604      0.00     0.03       0.00    -0.33
 39   3.0604      0.00     0.10       0.00    -0.32
 40   3.1014      0.00     0.04       0.00    -0.04
 41   3.1017      0.00     0.32       0.00     0.27
 42   4.1281      0.00    -0.15       0.00    -0.31
 43   4.1284      0.00    -0.11       0.00     0.01
 44   4.1310      0.00    -0.19       0.00    -0.09
 45   5.0293      0.00     0.09       0.00     0.14
 46   5.0294      0.00    -0.09       0.00     0.13
 47  14.0859      0.00     0.09       0.00    -0.09
 48  14.0862      0.00    -0.01       0.00    -0.09
 49  14.0863      0.00     0.11       0.00    -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.

79969    quality flag:3

Type:           5:4E      5:4E      5:4E

axisobj        34.811    34.811    34.811
ecceobj         0.082     0.082     0.082
incobj          3.181     3.181     3.181
qmin           31.385    31.383    31.388
qmax           38.818    38.816    38.819
amean          34.945    34.945    34.945
amin           34.637    34.637    34.636
amax           35.268    35.267    35.268
emean           0.080     0.080     0.080
emin            0.061     0.061     0.061
emax            0.101     0.101     0.101
imean           5.399     5.399     5.399
imin            3.828     3.828     3.829
imax            6.683     6.683     6.683
excite_mean     0.124     0.124     0.124
fracstop        1.000     1.000     1.000
cjmean          3.000     3.000     3.000

libcent 0       180.1     180.0     180.2
libamp  0        54.9      54.8      54.9
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       179.8     179.4     179.7
kozaiamp        180.0     179.9     180.0