Orbit Fit and Astrometric record for 00YB2

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: 00YB2     
# Created Tue Oct 24 01:37:09 2017
# Orbit generated from Bernstein formalism
# Fitting   27 observations of   27
# Arc:  14.17y
# First observation: 2000/12/16
#  Last observation: 2015/02/18
Preliminary a, adot, b, bdot, g, gdot:
  -0.000027   0.027346  -0.000004   0.000332   0.025458   0.000000
# Chi-squared of fit:    98.46 DOF:   48 RMS:  0.34
# Min/Max residuals:    -1.13    0.81
# Exact a, adot, b, bdot, g, gdot:
  1.621747E-05  2.707345E-02  1.984814E-06  3.258879E-04  2.660442E-02  4.565107E-04
# Covariance matrix:
  1.4875E-13 -4.8717E-14  9.4504E-16 -5.3206E-16 -2.6766E-14 -1.0273E-13
 -4.8717E-14  5.4770E-14 -8.7670E-16  9.9375E-16 -3.8695E-14  1.4825E-13
  9.4504E-16 -8.7670E-16  9.2993E-14 -1.0061E-14  4.6401E-17 -2.4132E-15
 -5.3206E-16  9.9375E-16 -1.0061E-14  2.6133E-15 -1.1551E-15  2.8774E-15
 -2.6766E-14 -3.8695E-14  4.6401E-17 -1.1551E-15  1.4207E-13 -1.2455E-13
 -1.0273E-13  1.4825E-13 -2.4132E-15  2.8774E-15 -1.2455E-13  4.2309E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.837469   55.948865   -0.473081   -0.057512   -0.855014  2451894.767073
# Heliocentric elements and errors
Epoch:              2451890.5000  =  2000/12/12
Mean Anomaly:           59.78017 +/-     0.064
Argument of Peri:      217.96194 +/-     0.068
Long of Asc Node:      135.56619 +/-     0.002
Inclination:             3.82208 +/-     0.000
Eccentricity:         0.03270237 +/-    0.0000
Semi-Major Axis:     39.06305277 +/-    0.0026
Time of Perihelion: 2437082.2987 +/-      15.8
Perihelion:          37.78559838 +/-    0.0031
Aphelion:            40.34050715 +/-    0.0032
Period (y)              244.1504 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.09153881 +/-    0.0003
Ecliptic Y           32.05316543 +/-    0.0004
Ecliptic Z           -2.51553559 +/-    0.0000
Ecliptic XDOT        -0.00228893 +/-    0.0000
Ecliptic YDOT         0.00160490 +/-    0.0000
Ecliptic ZDOT         0.00003049 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.45239060 +/-    0.0004
Geocenter to KBO     37.58774239 +/-    0.0005
# Hcoef:  7.21

The following table shows the complete astrometric record for 00YB2. 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 (00YB2) followed by the observatory code and reference code for the source of the astrometry.

2000 12  16.26633  03 38 15.33   +15 30 41.2   22.4R 00YB2     695  Cc4111      
2000 12  16.35374  03 38 14.93   +15 30 40.1   22.3R 00YB2     695  Cc4111      
2000 12  16.38591  03 38 14.78   +15 30 39.8   22.2R 00YB2     695  Cc4111      
2000 12  18.09808  03 38 06.81   +15 30 18.1         00YB2     695  Cc4111      
2001 02  14.84637  03 36 05.09   +15 28 43.3         00YB2     950  Cc6738      
2001 02  16.85280  03 36 07.14   +15 29 03.4   22.2R 00YB2     950  Cc6738      
2001 09  19.41135  03 51 07.08   +16 16 21.1         00YB2     695  Cd5779      
2001 09  19.46490  03 51 06.97   +16 16 20.5         00YB2     695  Cd5779      
2001 09  21.43870  03 51 03.04   +16 15 57.6         00YB2     290  Cd5779      
2001 09  21.48613  03 51 02.93   +16 15 57.0         00YB2     290  Cd5779      
2001 10  21.32125  03 49 22.02   +16 08 34.0         00YB2     696  Cd9166      
2001 10  21.35896  03 49 21.88   +16 08 32.8   22.3R 00YB2     696  Cd9166      
2001 12  13.08442  03 44 48.38   +15 53 44.8         00YB2     950  Ce3555      
2001 12  13.14503  03 44 48.08   +15 53 44.0         00YB2     950  Ce3555      
2003 12  21.167282 03 56 46.12   +16 34 38.2   22.5V 00YB2     645  C~1PqX      
2003 12  21.168111 03 56 46.12   +16 34 38.2   22.0V 00YB2     645  C~1PqX      
2003 12  21.170599 03 56 46.11   +16 34 38.2   23.1V 00YB2     645  C~1PqX      
2004 11  20.30587  04 05 43.59   +17 01 27.5   22.5R 00YB2     568  Cm0397      
2004 11  20.36370  04 05 43.27   +17 01 26.8         00YB2     568  Cm0397      
2004 11  21.37478  04 05 37.73   +17 01 11.3         00YB2     568  Cm0397      
2008 09  10.14754  04 34 50.38   +18 25 11.5   25.4R 00YB2     250  S~06AO      
2008 09  10.15379  04 34 50.38   +18 25 11.4         00YB2     250  S~06AO      
2008 09  10.16004  04 34 50.39   +18 25 11.5         00YB2     250  S~06AO      
2008 09  10.21560  04 34 50.37   +18 25 11.1         00YB2     250  S~06AO      
2015 02  18.12244  05 02 58.58   +19 31 15.7   24.7R 00YB2     695  C~1M60      
2015 02  18.16654  05 02 58.53   +19 31 15.7         00YB2     695  C~1M60      
2015 02  18.21444  05 02 58.48   +19 31 15.9         00YB2     695  C~1M60      

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    -0.03       0.00    -0.37
  2   0.0002     -5.88     0.18       0.27    -0.40
  3   0.0003     -8.06     0.23       0.48    -0.29
  4   0.0050   -125.15    -1.13       6.00    -0.50
  5   0.1659  -1858.51     0.32     322.81    -0.06
  6   0.1714  -1824.99     0.21     335.43    -0.03
  7   0.7588  11476.19     0.22     179.74     0.57
  8   0.7589  11474.51     0.16     179.49     0.58
  9   0.7643  11414.12     0.07     169.35     0.34
 10   0.7645  11412.44    -0.04     169.11     0.32
 11   0.8461   9893.34    -0.33      52.30     0.81
 12   0.8462   9891.11     0.01      51.57     0.17
 13   0.9906   5843.16     0.07      56.73    -0.06
 14   0.9908   5838.76     0.12      56.92    -0.05
 15   3.0114  16499.21     0.37     214.03    -0.35
 16   3.0114  16499.21     0.42     214.03    -0.35
 17   3.0114  16499.06     0.46     214.06    -0.33
 18   3.9289  24461.73    -0.66     216.53    -0.23
 19   3.9291  24457.03    -0.61     216.76    -0.06
 20   3.9319  24374.94    -0.47     217.33    -0.08
 21   7.7341  50791.52     0.18     691.33     0.11
 22   7.7341  50791.50     0.15     691.22     0.04
 23   7.7341  50791.67     0.32     691.30     0.16
 24   7.7343  50791.30    -0.09     690.94     0.09
 25  14.1735  77423.01    -0.04    1295.89     0.11
 26  14.1736  77422.21    -0.06    1295.98    -0.08
 27  14.1737  77421.44     0.01    1296.28    -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.

00YB2    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        39.055    39.063    39.048
ecceobj         0.034     0.034     0.034
incobj          3.823     3.823     3.823
qmin           36.347    36.395    36.370
qmax           41.392    41.410    41.437
amean          38.789    38.797    38.781
amin           38.499    38.506    38.490
amax           39.098    39.105    39.085
emean           0.037     0.037     0.037
emin            0.011     0.012     0.012
emax            0.060     0.060     0.060
imean           2.351     2.363     2.343
imin            0.315     0.311     0.318
imax            3.779     3.781     3.782
excite_mean     0.058     0.058     0.057
fracstop        1.000     1.000     1.000
cjmean          3.043     3.043     3.043

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       179.2     176.6     183.3
kozaiamp        180.0     180.0     180.0