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 Wed Dec  8 02:09:04 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     38 observations of     39
# Arc:  20.06y
# First observation: 2000/12/17
#  Last observation: 2021/01/08
# Chi-squared of fit:   131.48 DOF:     70 RMS:  0.33
# Min/Max residuals:    -1.65    0.53
# Exact a, adot, b, bdot, g, gdot:
  2.049210E-05  4.562185E-02 -6.306698E-07 -1.013788E-02  3.584337E-02 -7.547214E-03
# Covariance matrix:
  1.0608E-13 -1.5248E-14 -6.6075E-15  2.2075E-15 -7.4260E-15 -6.4601E-15
 -1.5248E-14  4.1596E-15  2.5149E-15 -8.1195E-16 -3.3021E-15  2.4719E-15
 -6.6075E-15  2.5149E-15  7.6926E-14 -5.9623E-15 -4.3549E-15  1.8118E-15
  2.2075E-15 -8.1195E-16 -5.9623E-15  8.1209E-16  1.0468E-15 -5.7543E-16
 -7.4260E-15 -3.3021E-15 -4.3549E-15  1.0468E-15  8.3650E-14 -4.4475E-15
 -6.4601E-15  2.4719E-15  1.8118E-15 -5.7543E-16 -4.4475E-15  1.7853E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.684480   54.210275   -0.513752   -0.053702   -0.831457  2451895.763373
# Heliocentric elements and errors
Epoch:              2451896.5000  =  2000/12/18
Mean Anomaly:          341.47063 +/-     1.546
Argument of Peri:      231.98700 +/-     0.000
Long of Asc Node:      219.37276 +/-     0.000
Inclination:            12.87963 +/-     0.000
Eccentricity:         0.30835146 +/-    0.0003
Semi-Major Axis:     39.71172758 +/-    0.0003
Time of Perihelion: 2456601.2306 +/-     392.5
Perihelion:          27.46655857 +/-    0.0109
Aphelion:            51.95689658 +/-    0.0109
Period (y)              250.2571 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.35685708 +/-    0.0004
Ecliptic Y           23.56565522 +/-    0.0004
Ecliptic Z           -1.79287123 +/-    0.0000
Ecliptic XDOT        -0.00320031 +/-    0.0000
Ecliptic YDOT         0.00153506 +/-    0.0000
Ecliptic ZDOT        -0.00073555 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.74206032 +/-    0.0004
Geocenter to KBO     27.89930258 +/-    0.0006
# Hcoef:  7.81

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      
2010 02  26.32722  05 11 00.295  +14 22 34.81  21.5G 00YH2     F51  C~2rXd      
2010 11  27.52619  05 30 44.429  +14 05 48.52  21.8G 00YH2     F51  C~2rXd      
2011 12  02.57108  05 42 15.771  +13 43 50.53  22.0G 00YH2     F51  C~2rXd      
2011 12  05.42023  05 41 55.727  +13 43 12.94  22.7G 00YH2     F51  C~2rXd      
2011 12  06.54026  05 41 47.744  +13 42 59.06  21.9G 00YH2     F51  C~2rXd      
2012 01  10.46295  05 37 38.913  +13 39 43.96  21.2G 00YH2     F51  C~2rXd      
2012 01  11.47779  05 37 32.355  +13 39 45.46  22.3G 00YH2     F51  C~2rXd      
2013 01  17.27343  05 48 53.917  +13 18 06.18  22.1G 00YH2     F51  C~2rXd      
2013 02  12.37122  05 46 49.977  +13 22 29.23  21.8G 00YH2     F51  C~2rXd      
2014 02  20.31395  05 58 20.703  +13 00 56.63  22.5G 00YH2     F51  C~2rXd      
2021 01  07.21678  07 24 23.73   +09 09 16.3   21.3G 00YH2     X01  C~4Tvq      
2021 01  07.29401  07 24 23.19   +09 09 17.5   21.1G 00YH2     X01  C~4Tvq      
2021 01  08.13683  07 24 17.22   +09 09 27.0   21.3G 00YH2     X01  C~4Tvq      
2021 01  08.23838  07 24 16.48   +09 09 28.2   21.3G 00YH2     X01  C~4Tvq      

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    -0.79
     2   0.0001      0.00     0.05       0.00    -0.45
     3   0.0002      0.00    -0.16       0.00    -0.67
     4   0.0025      0.00     0.53       0.00    -0.06
     5   0.1092      0.00     0.22       0.00     0.19
     6   0.1095      0.00     0.07       0.00     0.13
     7   0.1631      0.00    -0.10       0.00     0.45
     8   0.1632      0.00    -0.25       0.00     0.24
     9   0.1633      0.00    -0.20       0.00     0.46
    10   0.9851      0.00    -0.13       0.00     0.53
    11   0.9852      0.00    -0.14       0.00     0.26
    12   0.9853      0.00    -0.31       0.00     0.53
    13   0.9872      0.00     0.14       0.00     0.27
    14   2.9295      0.00    -0.11       0.00    -0.05
    15   2.9323      0.00     0.52       0.00    -0.92
    16   2.9324      0.00    -0.06       0.00    -0.12
    17   2.9326      0.00    -0.13       0.00    -0.10
    18   6.8997      0.00    -1.65       0.00     0.12
    19   6.8999      0.00    -0.20       0.00    -0.06
    20   7.7558      0.00     0.28       0.00    -0.06
    21   7.7558      0.00     0.22       0.00    -0.11
    22   7.7558      0.00     0.31       0.00    -0.07
    23   7.7558      0.00     0.25       0.00    -0.02
    24   7.8469      0.00     0.01       0.00     0.07
    25   7.8471      0.00     0.02       0.00     0.47
    26   9.1939      0.00 (  -3.79)      0.00 (   0.87)
    27   9.9446      0.00     0.04       0.00    -0.00
    28  10.9577      0.00     0.03       0.00    -0.03
    29  10.9655      0.00    -0.06       0.00    -0.18
    30  10.9686      0.00     0.03       0.00    -0.11
    31  11.0642      0.00     0.17       0.00    -0.19
    32  11.0670      0.00    -0.02       0.00    -0.17
    33  12.0849      0.00    -0.12       0.00    -0.17
    34  12.1564      0.00    -0.09       0.00     0.40
    35  13.1774      0.00     0.12       0.00     0.05
    36  20.0574      0.00    -0.20       0.00    -0.13
    37  20.0576      0.00     0.06       0.00     0.21
    38  20.0599      0.00     0.10       0.00     0.02
    39  20.0602      0.00     0.01       0.00     0.02

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        39.676    39.676    39.676
ecceobj         0.307     0.307     0.307
incobj         12.878    12.878    12.878
qmin           26.831    26.834    26.876
qmax           52.749    52.838    52.729
amean          39.455    39.455    39.455
amin           38.977    38.966    38.981
amax           40.037    40.035    40.043
emean           0.299     0.299     0.299
emin            0.277     0.276     0.277
emax            0.320     0.320     0.319
imean          13.785    13.786    13.797
imin           12.945    12.921    12.952
imax           14.660    14.667    14.694
excite_mean     0.383     0.383     0.383
fracstop        1.000     1.000     1.000
cjmean          2.884     2.884     2.884

libcent 0       179.4     180.2     179.9
libamp  0        91.0      90.2      90.6
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       194.1     193.3     193.8
kozaiamp        180.0     180.0     180.0