Orbit Fit and Astrometric record for 00PW29

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: 00PW29    
# Created Mon Oct 23 01:37:08 2017
# Orbit generated from Bernstein formalism
# Fitting   14 observations of   14
# Arc:   2.17y
# First observation: 1999/07/19
#  Last observation: 2001/09/20
Preliminary a, adot, b, bdot, g, gdot:
   0.000048   0.022930  -0.000003  -0.000642   0.024008   0.000000
# Chi-squared of fit:     5.72 DOF:   22 RMS:  0.11
# Min/Max residuals:    -0.25    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.503781E-05  2.296502E-02 -1.065550E-06 -6.467498E-04  2.374836E-02  1.346470E-03
# Covariance matrix:
  4.8777E-13 -8.8619E-13 -5.4651E-15  1.9888E-14 -6.4084E-13 -1.3966E-11
 -8.8619E-13  3.8497E-12  2.8183E-14 -1.0326E-13  3.9874E-12  7.2927E-11
 -5.4651E-15  2.8183E-14  3.5554E-13 -2.1104E-13  2.7379E-14  5.7843E-13
  1.9888E-14 -1.0326E-13 -2.1104E-13  1.7985E-13 -1.0188E-13 -2.1101E-12
 -6.4084E-13  3.9874E-12  2.7379E-14 -1.0188E-13  5.4042E-12  7.2874E-11
 -1.3966E-11  7.2927E-11  5.7843E-13 -2.1101E-12  7.2874E-11  1.4849E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.727356  -55.635474    0.149381    0.012492   -1.002999  2451378.919813
# Heliocentric elements and errors
Epoch:              2451370.5000  =  1999/07/11
Mean Anomaly:           59.71321 +/-     0.569
Argument of Peri:       90.40158 +/-     0.758
Long of Asc Node:      148.04397 +/-     0.013
Inclination:             1.75513 +/-     0.001
Eccentricity:         0.05830471 +/-    0.0015
Semi-Major Axis:     44.29885368 +/-    0.0095
Time of Perihelion: 2433507.4728 +/-     170.1
Perihelion:          41.71602193 +/-    0.0684
Aphelion:            46.88168543 +/-    0.0686
Period (y)              294.8472 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.21758392 +/-    0.0023
Ecliptic Y          -35.66644919 +/-    0.0034
Ecliptic Z            0.53451710 +/-    0.0001
Ecliptic XDOT         0.00227016 +/-    0.0000
Ecliptic YDOT         0.00137403 +/-    0.0000
Ecliptic ZDOT        -0.00007254 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.11464574 +/-    0.0031
Geocenter to KBO     42.10817163 +/-    0.0041
# Hcoef:  8.19

The following table shows the complete astrometric record for 00PW29. 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 (00PW29) followed by the observatory code and reference code for the source of the astrometry.

1999 07  19.41907  20 26 03.63   -18 27 43.5   24.3R 00PW29    568  Cd3308      
1999 07  19.44678  20 26 03.49   -18 27 44.1         00PW29    568  Cd3308      
1999 07  19.47521  20 26 03.36   -18 27 44.5         00PW29    568  Cd3308      
2000 08  05.32778  20 30 04.78   -18 16 01.1   25.0R 00PW29    568  Cb8005      
2000 08  05.37175  20 30 04.59   -18 16 01.6         00PW29    568  Cb8005      
2000 08  05.41993  20 30 04.37   -18 16 02.4   24.7R 00PW29    568  Cb8005      
2000 08  06.31837  20 30 00.13   -18 16 18.0         00PW29    568  Cb8005      
2000 08  06.36419  20 29 59.91   -18 16 18.8         00PW29    568  Cb8005      
2000 08  06.40555  20 29 59.72   -18 16 19.3   24.5R 00PW29    568  Cb8005      
2001 07  25.35182  20 36 20.62   -17 55 31.2         00PW29    568  Cd3308      
2001 07  25.40974  20 36 20.34   -17 55 32.2   23.4R 00PW29    568  Cd3308      
2001 07  25.46294  20 36 20.08   -17 55 33.2   23.2R 00PW29    568  Cd3308      
2001 09  20.17230  20 32 30.38   -18 10 15.6         00PW29    675  Ce0222      
2001 09  20.21909  20 32 30.25   -18 10 16.0   24.0R 00PW29    675  Ce0222      

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     0.05       0.00     0.13
  2   0.0001     -2.08    -0.08      -0.11     0.02
  3   0.0002     -3.97     0.03      -0.06     0.07
  4   1.0483   3501.68    -0.18    -139.90    -0.25
  5   1.0485   3498.94     0.16    -139.73    -0.06
  6   1.0486   3495.70     0.32    -139.75    -0.06
  7   1.0511   3433.31    -0.14    -140.27    -0.09
  8   1.0512   3430.07    -0.17    -140.29    -0.08
  9   1.0513   3427.33    -0.01    -140.12     0.10
 10   2.0176   9003.64     0.03    -267.35     0.04
 11   2.0178   8999.51     0.02    -267.32     0.08
 12   2.0179   8995.66    -0.05    -267.35     0.04
 13   2.1732   5598.89     0.04    -310.41    -0.02
 14   2.1733   5597.00    -0.03    -310.34     0.08

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.

00PW29    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.217    44.245    44.189
ecceobj         0.057     0.058     0.057
incobj          1.755     1.755     1.755
qmin           40.996    41.046    41.042
qmax           47.658    47.763    47.621
amean          44.243    44.271    44.213
amin           43.897    43.924    43.872
amax           44.607    44.636    44.568
emean           0.054     0.055     0.053
emin            0.038     0.039     0.037
emax            0.069     0.070     0.069
imean           1.776     1.772     1.779
imin            1.160     1.160     1.160
imax            2.354     2.345     2.363
excite_mean     0.063     0.064     0.062
fracstop        1.000     1.000     1.000
cjmean          3.100     3.100     3.100

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       162.0     162.5     161.3
kozaiamp        179.9     180.0     180.0