Orbit Fit and Astrometric record for 00YH2

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: 00YH2     
# Created Fri Oct 20 01:37:11 2017
# Orbit generated from Bernstein formalism
# Fitting   25 observations of   25
# Arc:   7.85y
# First observation: 2000/12/17
#  Last observation: 2008/10/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.003983   0.051622   0.000681  -0.011185   0.030541   0.000000
# Chi-squared of fit:   113.17 DOF:   44 RMS:  0.38
# Min/Max residuals:    -1.28    0.59
# Exact a, adot, b, bdot, g, gdot:
  2.167752E-05  4.562053E-02 -7.718747E-07 -1.013772E-02  3.584746E-02 -7.546877E-03
# Covariance matrix:
  2.1439E-13 -1.4554E-13 -1.2887E-14  1.5966E-14  2.9843E-13 -1.7935E-13
 -1.4554E-13  1.7682E-13  1.8074E-14 -2.4591E-14 -2.9847E-13  2.7645E-13
 -1.2887E-14  1.8074E-14  1.1426E-13 -1.9825E-14 -2.3341E-14  3.2017E-14
  1.5966E-14 -2.4591E-14 -1.9825E-14  9.4802E-15  1.1858E-14 -5.0833E-14
  2.9843E-13 -2.9847E-13 -2.3341E-14  1.1858E-14  1.4723E-12 -1.3158E-13
 -1.7935E-13  2.7645E-13  3.2017E-14 -5.0833E-14 -1.3158E-13  5.7209E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.684480   54.210275   -0.513752   -0.053702   -0.831458  2451895.763373
# Heliocentric elements and errors
Epoch:              2451890.5000  =  2000/12/12
Mean Anomaly:          341.40353 +/-     0.009
Argument of Peri:      232.02857 +/-     0.013
Long of Asc Node:      219.37313 +/-     0.000
Inclination:            12.87976 +/-     0.000
Eccentricity:         0.30790591 +/-    0.0001
Semi-Major Axis:     39.67963876 +/-    0.0090
Time of Perihelion: 2456606.5456 +/-       1.7
Perihelion:          27.46204348 +/-    0.0079
Aphelion:            51.89723404 +/-    0.0127
Period (y)              249.9538 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.35497137 +/-    0.0006
Ecliptic Y           23.56309607 +/-    0.0008
Ecliptic Z           -1.79267048 +/-    0.0001
Ecliptic XDOT        -0.00319985 +/-    0.0000
Ecliptic YDOT         0.00153485 +/-    0.0000
Ecliptic ZDOT        -0.00073545 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.73879350 +/-    0.0007
Geocenter to KBO     27.89597865 +/-    0.0009
# Hcoef:  8.16

The following table shows the complete astrometric record for 00YH2. 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 (00YH2) followed by the observatory code and reference code for the source of the astrometry.

2000 12  17.26263  03 31 06.72   +15 15 01.5   22.5R 00YH2     695  Cc4111      
2000 12  17.30542  03 31 06.47   +15 15 00.9   22.1R 00YH2     695  Cc4111      
2000 12  17.35038  03 31 06.20   +15 14 59.7   21.9R 00YH2     695  Cc4111      
2000 12  18.15950  03 31 01.75   +15 14 43.0         00YH2     695  C43802      
2001 01  26.14281  03 28 47.85   +15 07 06.8   22.0R 00YH2     695  Ce1834      
2001 01  26.24025  03 28 47.74   +15 07 06.6         00YH2     695  Ce1834      
2001 02  14.83686  03 28 57.39   +15 08 29.5         00YH2     950  Cc6738      
2001 02  14.88155  03 28 57.46   +15 08 29.7         00YH2     950  Cc6738      
2001 02  14.92333  03 28 57.54   +15 08 30.3         00YH2     950  Cc6738      
2001 12  12.06377  03 42 52.16   +15 20 04.5   22.1R 00YH2     950  Ce3555      
2001 12  12.09988  03 42 51.93   +15 20 03.4         00YH2     950  Ce3555      
2001 12  12.13756  03 42 51.68   +15 20 02.8         00YH2     950  Ce3555      
2001 12  12.83248  03 42 47.41   +15 19 46.8         00YH2     950  Ce3555      
2003 11  22.26995  04 08 06.77   +15 27 20.0   21.5R 00YH2     695  Cj3639      
2003 11  23.27488  04 07 59.74   +15 26 53.3         00YH2     695  Cj3639      
2003 11  23.32952  04 07 59.31   +15 26 52.7         00YH2     695  Cj3639      
2003 11  23.38476  04 07 58.91   +15 26 51.3         00YH2     695  Cj3639      
2007 11  11.38352  04 56 30.86   +15 00 00.7   21.8R 00YH2     688  Cw6696      
2007 11  11.45822  04 56 30.48   +14 59 58.8         00YH2     688  Cw6696      
2008 09  19.06421  05 11 07.22   +15 06 16.9   22.7R 00YH2     250  S~06AO      
2008 09  19.07115  05 11 07.22   +15 06 16.7         00YH2     250  S~06AO      
2008 09  19.07740  05 11 07.23   +15 06 16.6         00YH2     250  S~06AO      
2008 09  19.08435  05 11 07.23   +15 06 16.5         00YH2     250  S~06AO      
2008 10  22.33548  05 10 07.17   +14 53 24.5   23.5r 00YH2     695  C~0gLu      
2008 10  22.42411  05 10 06.80   +14 53 22.8   24.1r 00YH2     695  C~0gLu      

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    -0.32       0.00    -0.76
  2   0.0001     -3.66    -0.31       0.29    -0.42
  3   0.0002     -7.74    -0.55       0.07    -0.59
  4   0.0025    -74.26     0.25      -0.61    -0.16
  5   0.1092  -2065.51     0.39      26.76     0.13
  6   0.1095  -2067.10     0.23      26.96     0.10
  7   0.1631  -1911.37     0.21      73.32     0.44
  8   0.1632  -1910.34     0.01      73.27     0.27
  9   0.1633  -1909.07     0.11      73.57     0.47
 10   0.9851  10001.36    -0.06   -2101.18     0.54
 11   0.9852   9997.86    -0.12   -2101.50     0.29
 12   0.9853   9994.19    -0.22   -2101.25     0.59
 13   0.9872   9930.25     0.15   -2102.73     0.24
 14   2.9295  31740.46     0.02   -6406.22    -0.07
 15   2.9323  31633.03     0.47   -6411.94    -1.06
 16   2.9324  31626.67     0.07   -6411.27    -0.15
 17   2.9326  31620.58     0.01   -6411.47    -0.12
 18   6.8997  75901.77    -1.28  -15889.82     0.37
 19   6.8999  75895.28     0.27  -15890.90    -0.06
 20   7.7558  90652.86     0.12  -17573.14    -0.15
 21   7.7558  90652.83     0.04  -17573.36    -0.20
 22   7.7558  90652.99     0.16  -17573.49    -0.18
 23   7.7558  90652.98     0.09  -17573.60    -0.11
 24   7.8469  89516.99     0.11  -18273.10     0.09
 25   7.8471  89510.41     0.18  -18274.08     0.52

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.

00YH2    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.644    39.671    39.617
ecceobj         0.307     0.307     0.306
incobj         12.878    12.878    12.878
qmin           26.693    26.889    26.885
qmax           53.062    52.747    52.892
amean          39.455    39.455    39.455
amin           38.951    38.950    38.910
amax           40.097    40.039    40.090
emean           0.303     0.299     0.302
emin            0.285     0.278     0.287
emax            0.325     0.319     0.320
imean          13.598    13.782    13.682
imin           12.790    12.983    13.136
imax           14.493    14.677    14.201
excite_mean     0.384     0.383     0.383
fracstop        1.000     1.000     1.000
cjmean          2.883     2.884     2.884

libcent 0       180.5     179.5     180.4
libamp  0       101.0      93.9     125.5
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       188.4     197.2     182.8
kozaiamp        179.9     180.0     180.0