Orbit Fit and Astrometric record for 01KG76

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: 01KG76    
# Created Sun Oct 22 01:37:12 2017
# Orbit generated from Bernstein formalism
# Fitting   39 observations of   39
# Arc:   6.97y
# First observation: 2001/05/22
#  Last observation: 2008/05/09
Preliminary a, adot, b, bdot, g, gdot:
   0.000864   0.021597  -0.000018  -0.000496   0.023083   0.000000
# Chi-squared of fit:    18.98 DOF:   72 RMS:  0.12
# Min/Max residuals:    -0.34    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.587076E-05  2.254963E-02 -9.585377E-07 -5.173564E-04  2.332861E-02  7.375536E-03
# Covariance matrix:
  1.8989E-13 -1.0149E-13 -1.1718E-15  1.5142E-15  8.3439E-14 -4.7909E-13
 -1.0149E-13  8.4894E-14  1.4363E-15 -1.6086E-15 -1.9639E-14  4.9263E-13
 -1.1718E-15  1.4363E-15  9.4904E-14 -2.4305E-14  9.8120E-16  1.0220E-14
  1.5142E-15 -1.6086E-15 -2.4305E-14  1.0586E-14 -2.4071E-16 -1.1003E-14
  8.3439E-14 -1.9639E-14  9.8120E-16 -2.4071E-16  2.7329E-13  8.3507E-15
 -4.7909E-13  4.9263E-13  1.0220E-14 -1.1003E-14  8.3507E-15  3.3358E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.853314 -116.463100    0.042606    0.015030   -1.017749  2452051.709323
# Heliocentric elements and errors
Epoch:              2452050.5000  =  2001/05/21
Mean Anomaly:           47.31550 +/-     0.012
Argument of Peri:       63.03227 +/-     0.013
Long of Asc Node:       96.00273 +/-     0.005
Inclination:             1.55034 +/-     0.000
Eccentricity:         0.34006362 +/-    0.0001
Semi-Major Axis:     51.25002392 +/-    0.0076
Time of Perihelion: 2434437.2089 +/-       2.3
Perihelion:          33.82175550 +/-    0.0070
Aphelion:            68.67829235 +/-    0.0113
Period (y)              366.9014 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.58746248 +/-    0.0004
Ecliptic Y          -39.25732538 +/-    0.0009
Ecliptic Z            0.63834219 +/-    0.0000
Ecliptic XDOT         0.00197465 +/-    0.0000
Ecliptic YDOT        -0.00195263 +/-    0.0000
Ecliptic ZDOT        -0.00004762 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.87725792 +/-    0.0008
Geocenter to KBO     42.86582660 +/-    0.0010
# Hcoef:  6.43

The following table shows the complete astrometric record for 01KG76. 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 (01KG76) followed by the observatory code and reference code for the source of the astrometry.

2001 05  22.20858  16 06 45.68   -20 01 22.4   22.0R 01KG76    807  Cd1817      
2001 05  22.28897  16 06 45.29   -20 01 21.3         01KG76    807  Cd1817      
2001 06  10.02875  16 05 16.38   -19 57 27.3   22.9R 01KG76    304  Cd1817      
2001 06  10.10380  16 05 16.05   -19 57 26.3         01KG76    304  Cd1817      
2001 08  19.03454  16 02 18.80   -19 50 35.3   21.4R 01KG76    807  Cd7687      
2001 08  20.03188  16 02 19.15   -19 50 37.8         01KG76    807  Cd7687      
2001 08  21.03938  16 02 19.58   -19 50 40.7         01KG76    807  Cd7687      
2002 04  07.29240  16 15 09.97   -20 25 16.3   21.6R 01KG76    807  Cf4617      
2002 04  07.38861  16 15 09.68   -20 25 15.6         01KG76    807  Cf4617      
2002 05  12.03950  16 12 54.85   -20 19 22.5         01KG76    950  Cf4617      
2002 05  12.08513  16 12 54.63   -20 19 21.8         01KG76    950  Cf4617      
2002 05  12.13062  16 12 54.41   -20 19 21.3         01KG76    950  Cf4617      
2002 05  13.04812  16 12 50.15   -20 19 10.5         01KG76    950  Cf4617      
2002 05  13.11749  16 12 49.83   -20 19 09.6         01KG76    950  Cf4617      
2002 07  10.99718  16 08 34.27   -20 08 36.4   22.2R 01KG76    304  Cf9823      
2002 07  11.20921  16 08 33.59   -20 08 35.0         01KG76    304  Cf9823      
2002 07  13.10322  16 08 27.82   -20 08 21.5         01KG76    304  Cf9823      
2002 07  13.12814  16 08 27.74   -20 08 21.4         01KG76    304  Cf9823      
2004 05  25.25597  16 22 20.07   -20 46 04.8   22.9R 01KG76    304  Ck8652      
2004 05  25.25766  16 22 20.06   -20 46 04.8         01KG76    304  Ck8652      
2004 05  25.25922  16 22 20.06   -20 46 04.7         01KG76    304  Ck8652      
2004 05  25.26044  16 22 20.05   -20 46 04.8         01KG76    304  Ck8652      
2004 05  25.26166  16 22 20.04   -20 46 04.7         01KG76    304  Ck8652      
2004 05  25.26370  16 22 20.04   -20 46 04.8         01KG76    304  Ck8652      
2004 05  25.26608  16 22 20.04   -20 46 04.4         01KG76    304  Ck8652      
2004 05  25.26845  16 22 20.00   -20 46 04.6         01KG76    304  Ck8652      
2004 05  25.27082  16 22 19.99   -20 46 04.5         01KG76    304  Ck8652      
2004 05  25.27294  16 22 19.98   -20 46 04.6         01KG76    304  Ck8652      
2004 05  25.27462  16 22 19.97   -20 46 04.6         01KG76    304  Ck8652      
2004 05  28.03370  16 22 06.84   -20 45 34.4   22.7R 01KG76    304  Ck8652      
2004 05  28.05579  16 22 06.76   -20 45 34.3         01KG76    304  Ck8652      
2004 05  28.07845  16 22 06.64   -20 45 34.2         01KG76    304  Ck8652      
2004 05  28.10130  16 22 06.54   -20 45 34.0         01KG76    304  Ck8652      
2004 05  28.12461  16 22 06.43   -20 45 33.6         01KG76    304  Ck8652      
2004 05  28.17828  16 22 06.17   -20 45 32.9         01KG76    304  Ck8652      
2008 05  09.75518  16 43 51.17   -21 37 58.1   24.8R 01KG76    250  S~06AP      
2008 05  09.76143  16 43 51.14   -21 37 58.1         01KG76    250  S~06AP      
2008 05  09.76768  16 43 51.12   -21 37 58.0         01KG76    250  S~06AP      
2008 05  09.77393  16 43 51.07   -21 37 58.1         01KG76    250  S~06AP      

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    -0.12       0.00     0.13
  2   0.0002     -5.61    -0.09       0.04     0.19
  3   0.0515  -1280.55    -0.20      -8.03    -0.03
  4   0.0517  -1285.31     0.04      -7.94     0.14
  5   0.2432  -3818.04    -0.09     -87.19    -0.04
  6   0.2459  -3812.70     0.05     -88.67    -0.10
  7   0.2487  -3806.18    -0.04     -90.33    -0.32
  8   0.8763   7243.47     0.13    -114.80    -0.12
  9   0.8766   7239.33     0.03    -114.83    -0.19
 10   0.9715   5309.01     0.18    -104.60     0.07
 11   0.9716   5305.83     0.08    -104.47     0.21
 12   0.9717   5302.70     0.01    -104.53     0.16
 13   0.9742   5241.77    -0.07    -104.67     0.03
 14   0.9744   5237.18     0.03    -104.59     0.12
 15   1.1356   1584.06     0.19    -139.74     0.06
 16   1.1362   1574.39     0.18    -140.14    -0.09
 17   1.1414   1492.03     0.06    -142.00     0.15
 18   1.1415   1490.91     0.02    -142.11     0.07
 19   3.0090  13423.06    -0.01    -313.94    -0.05
 20   3.0090  13422.92    -0.03    -313.96    -0.08
 21   3.0090  13422.91     0.06    -313.86     0.02
 22   3.0090  13422.79     0.02    -313.99    -0.10
 23   3.0090  13422.63    -0.05    -313.91    -0.02
 24   3.0090  13422.65     0.11    -314.01    -0.12
 25   3.0091  13422.58     0.20    -313.61     0.27
 26   3.0091  13422.06    -0.16    -313.91    -0.01
 27   3.0091  13421.90    -0.15    -313.83     0.06
 28   3.0091  13421.78    -0.12    -313.95    -0.06
 29   3.0091  13421.64    -0.15    -313.98    -0.08
 30   3.0166  13234.25    -0.34    -314.67     0.02
 31   3.0167  13233.12     0.05    -314.75    -0.05
 32   3.0168  13231.43    -0.08    -314.93    -0.21
 33   3.0168  13230.01     0.07    -314.97    -0.23
 34   3.0169  13228.42     0.08    -314.83    -0.07
 35   3.0170  13224.69     0.06    -314.74     0.05
 36   6.9666  31973.65     0.08    -712.94     0.12
 37   6.9666  31973.23     0.04    -713.00     0.06
 38   6.9666  31972.93     0.13    -712.94     0.12
 39   6.9666  31972.24    -0.18    -713.13    -0.07

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.

01KG76    quality flag:3

Type:       9:4EEEEE  9:4EEEEE  9:4EEEEE

axisobj        51.176    51.199    51.154
ecceobj         0.338     0.338     0.338
incobj          1.550     1.550     1.550
qmin           33.450    33.457    33.449
qmax           70.952    70.873    71.009
amean          51.700    51.700    51.701
amin           51.117    51.158    51.085
amax           52.454    52.408    52.475
emean           0.342     0.342     0.342
emin            0.332     0.332     0.332
emax            0.353     0.352     0.353
imean           0.253     0.258     0.245
imin            0.091     0.108     0.056
imax            0.413     0.422     0.400
excite_mean     0.342     0.342     0.342
fracstop        1.000     1.000     1.000
cjmean          3.045     3.045     3.045

libcent 0       179.4     179.9     179.4
libamp  0        72.7      58.1      85.9
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       228.2     219.5     239.3
kozaiamp        180.0     180.0     180.0