Orbit Fit and Astrometric record for 00PX29

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: 00PX29    
# Created Tue Oct 24 01:37:07 2017
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   25
# Arc:   6.80y
# First observation: 2000/07/31
#  Last observation: 2007/05/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000013   0.022792  -0.000000  -0.002517   0.023695   0.000000
# Chi-squared of fit:    17.64 DOF:   36 RMS:  0.16
# Min/Max residuals:    -0.22    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.447739E-05  2.269046E-02 -3.461194E-06 -2.510570E-03  2.389002E-02 -1.307483E-03
# Covariance matrix:
  2.9667E-13 -2.5628E-13 -4.9780E-15  1.6413E-14  3.5847E-13 -9.4945E-13
 -2.5628E-13  3.9278E-13  1.0606E-14 -3.1224E-14 -3.2528E-13  1.7966E-12
 -4.9780E-15  1.0606E-14  1.0591E-13 -2.0360E-14 -3.3748E-15  5.5768E-14
  1.6413E-14 -3.1224E-14 -2.0360E-14  1.3346E-14  1.6159E-14 -1.5767E-13
  3.5847E-13 -3.2528E-13 -3.3748E-15  1.6159E-14  8.3239E-13 -9.4784E-13
 -9.4945E-13  1.7966E-12  5.5768E-14 -1.5767E-13 -9.4784E-13  9.0532E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.085370  -54.195669   -0.035534    0.019036   -1.014057  2451756.624613
# Heliocentric elements and errors
Epoch:              2451750.5000  =  2000/07/25
Mean Anomaly:          267.05941 +/-     0.155
Argument of Peri:      270.18289 +/-     0.131
Long of Asc Node:      135.34746 +/-     0.000
Inclination:             6.40315 +/-     0.000
Eccentricity:         0.05985316 +/-    0.0001
Semi-Major Axis:     42.59161956 +/-    0.0076
Time of Perihelion: 2477961.7421 +/-      43.1
Perihelion:          40.04237645 +/-    0.0093
Aphelion:            45.14086267 +/-    0.0100
Period (y)              277.9678 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.11207872 +/-    0.0009
Ecliptic Y          -34.73920097 +/-    0.0013
Ecliptic Z            0.79274022 +/-    0.0000
Ecliptic XDOT         0.00201737 +/-    0.0000
Ecliptic YDOT         0.00164393 +/-    0.0000
Ecliptic ZDOT        -0.00029035 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.87256720 +/-    0.0012
Geocenter to KBO     41.85848211 +/-    0.0016
# Hcoef:  7.57

The following table shows the complete astrometric record for 00PX29. 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 (00PX29) followed by the observatory code and reference code for the source of the astrometry.

2000 07  31.12387  20 31 34.74   -17 46 05.8   23.4R 00PX29    807  Ch1299      
2000 07  31.19562  20 31 34.40   -17 46 07.6         00PX29    807  Ch1299      
2000 08  05.34368  20 31 10.02   -17 47 43.4         00PX29    568  Cb8005      
2000 08  05.39259  20 31 09.79   -17 47 44.6   23.4R 00PX29    568  Cb8005      
2000 08  05.43348  20 31 09.60   -17 47 45.4         00PX29    568  Cb8005      
2000 08  06.33657  20 31 05.27   -17 48 02.0         00PX29    568  Cb8005      
2000 08  06.37780  20 31 05.06   -17 48 02.8   23.7R 00PX29    568  Cb8005      
2000 08  06.41951  20 31 04.86   -17 48 03.6         00PX29    568  Cb8005      
2000 09  23.25607  20 28 05.95   -18 00 29.7   23.5R 00PX29    568  Cc0967      
2000 09  23.30561  20 28 05.83   -18 00 30.4   23.8R 00PX29    568  Cc0967      
2000 09  23.35371  20 28 05.75   -18 00 30.8   24.4R 00PX29    568  Cc0967      
2000 09  24.24408  20 28 03.79   -18 00 40.2   23.7R 00PX29    568  Cc0967      
2000 09  24.29365  20 28 03.67   -18 00 40.7   23.5R 00PX29    568  Cc0967      
2000 09  24.35187  20 28 03.54   -18 00 41.3   24.0R 00PX29    568  Cc0967      
2001 07  25.35182  20 37 29.56   -17 33 13.1   22.8R 00PX29    568  Cd3308      
2001 07  25.40974  20 37 29.28   -17 33 14.2   23.0R 00PX29    568  Cd3308      
2001 07  25.46294  20 37 29.01   -17 33 15.3   23.1R 00PX29    568  Cd3308      
2001 07  26.38082  20 37 24.66   -17 33 32.8         00PX29    568  Cd3308      
2003 07  06.44015  20 49 48.33   -17 03 19.6   23.7R 00PX29    568  Ci2628      
2003 07  07.44134  20 49 44.14   -17 03 37.3         00PX29    568  Ci2628      
2003 07  07.49809  20 49 43.95   -17 03 38.5         00PX29    568  Ci2628      
2007 05  20.71003  21 13 15.70   -15 59 29.6   23.8R 00PX29    250  S~06AN      
2007 05  20.71698  21 13 15.70   -15 59 29.6         00PX29    250  S~06AN      
2007 05  20.72462  21 13 15.70   -15 59 29.6         00PX29    250  S~06AN      
2007 05  20.73156  21 13 15.69   -15 59 29.6         00PX29    250  S~06AN      

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     0.11       0.00     0.37
  2   0.0002     -5.15     0.11      -0.56    -0.09
  3   0.0143   -366.23 (   1.11)     -8.46 (   0.23)
  4   0.0144   -369.71 (   1.11)     -8.82 (  -0.06)
  5   0.0145   -372.53 (   1.20)     -8.94 (  -0.12)
  6   0.0170   -436.56     0.12      -9.96     0.37
  7   0.0171   -439.66    -0.06     -10.01     0.38
  8   0.0172   -442.63    -0.07     -10.09     0.36
  9   0.1482  -3101.16    -0.03    -116.62    -0.06
 10   0.1483  -3102.99    -0.15    -116.89    -0.21
 11   0.1485  -3104.20     0.31    -117.00    -0.22
 12   0.1509  -3133.60     0.05    -119.42    -0.22
 13   0.1510  -3135.38    -0.07    -119.50    -0.17
 14   0.1512  -3137.33    -0.07    -119.64    -0.18
 15   0.9835   5105.60    -0.02    -510.14    -0.09
 16   0.9837   5101.44    -0.02    -510.19    -0.07
 17   0.9838   5097.43    -0.22    -510.28    -0.11
 18   0.9863   5032.78    -0.16    -511.55    -0.10
 19   2.9304  15818.31     0.18   -1528.79    -0.10
 20   2.9331  15755.31    -0.01   -1529.77     0.00
 21   2.9333  15752.34 (   0.68)  -1530.20 (  -0.38)
 22   6.8024  36667.05    -0.03   -3586.25     0.00
 23   6.8024  36667.05     0.01   -3586.25     0.01
 24   6.8025  36667.05     0.05   -3586.25     0.02
 25   6.8025  36666.91    -0.05   -3586.21     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.

00PX29    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.670    42.692    42.647
ecceobj         0.060     0.060     0.060
incobj          6.398     6.398     6.399
qmin           38.192    38.321    38.286
qmax           47.377    47.250    47.249
amean          42.661    42.691    42.637
amin           42.319    42.352    42.295
amax           43.028    43.048    42.993
emean           0.075     0.074     0.075
emin            0.049     0.049     0.050
emax            0.102     0.098     0.100
imean           5.808     5.787     5.807
imin            4.581     4.589     4.578
imax            7.034     7.204     7.063
excite_mean     0.126     0.126     0.126
fracstop        1.000     1.000     1.000
cjmean          3.067     3.067     3.067

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       179.1     180.9     178.9
kozaiamp        180.0     180.0     180.0