Orbit Fit and Astrometric record for 00YF2

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: 00YF2     
# Created Mon Oct 23 01:37:10 2017
# Orbit generated from Bernstein formalism
# Fitting   22 observations of   22
# Arc:  15.13y
# First observation: 2000/12/17
#  Last observation: 2016/02/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000279   0.019985  -0.000031   0.000639   0.019612   0.000000
# Chi-squared of fit:   129.10 DOF:   38 RMS:  0.43
# Min/Max residuals:    -1.24    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.738848E-05  1.939059E-02  4.476769E-07  6.166686E-04  2.161508E-02 -1.496356E-03
# Covariance matrix:
  1.5077E-13 -6.0625E-14  1.8585E-15 -1.6611E-15  8.0050E-15 -1.7711E-13
 -6.0625E-14  9.4782E-14 -3.0936E-15  3.1385E-15 -1.0949E-13  3.3330E-13
  1.8585E-15 -3.0936E-15  1.0317E-13 -1.1083E-14  3.2574E-15 -1.1238E-14
 -1.6611E-15  3.1385E-15 -1.1083E-14  3.4046E-15 -3.8604E-15  1.1442E-14
  8.0050E-15 -1.0949E-13  3.2574E-15 -3.8604E-15  2.5833E-13 -4.0820E-13
 -1.7711E-13  3.3330E-13 -1.1238E-14  1.1442E-14 -4.0820E-13  1.2149E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.839584   56.470142   -0.478652   -0.012678   -0.853728  2451895.643783
# Heliocentric elements and errors
Epoch:              2451890.5000  =  2000/12/12
Mean Anomaly:          252.95443 +/-     0.066
Argument of Peri:       90.36043 +/-     0.053
Long of Asc Node:       81.32541 +/-     0.002
Inclination:             2.00413 +/-     0.000
Eccentricity:         0.07156242 +/-    0.0001
Semi-Major Axis:     45.95572867 +/-    0.0049
Time of Perihelion: 2485726.1168 +/-      20.1
Perihelion:          42.66702573 +/-    0.0058
Aphelion:            49.24443162 +/-    0.0064
Period (y)              311.5428 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.62887293 +/-    0.0006
Ecliptic Y           39.54287972 +/-    0.0009
Ecliptic Z           -0.67787546 +/-    0.0000
Ecliptic XDOT        -0.00215948 +/-    0.0000
Ecliptic YDOT         0.00120380 +/-    0.0000
Ecliptic ZDOT         0.00008106 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.12682866 +/-    0.0008
Geocenter to KBO     46.26399186 +/-    0.0011
# Hcoef:  6.91

The following table shows the complete astrometric record for 00YF2. 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 (00YF2) followed by the observatory code and reference code for the source of the astrometry.

2000 12  17.14304  03 37 28.37   +18 32 54.5   22.9R 00YF2     695  Cc4111      
2000 12  17.18970  03 37 28.21   +18 32 53.3   23.4R 00YF2     695  Cc4111      
2000 12  17.23702  03 37 28.02   +18 32 52.3   23.4R 00YF2     695  Cc4111      
2000 12  18.11934  03 37 24.64   +18 32 41.5         00YF2     695  Cc4111      
2001 02  23.04618  03 35 46.95   +18 28 39.1         00YF2     309  Cc6738      
2001 02  24.04464  03 35 48.42   +18 28 45.5         00YF2     309  Cc6738      
2001 09  21.38629  03 47 39.12   +19 08 16.0   23.2R 00YF2     675  Ce6592      
2001 09  21.45586  03 47 39.00   +19 08 15.6   23.1R 00YF2     675  Ce6592      
2001 09  21.51023  03 47 38.89   +19 08 15.2   23.1R 00YF2     675  Ce6592      
2001 12  12.92894  03 42 19.90   +18 51 13.9         00YF2     950  Ce6592      
2001 12  12.97811  03 42 19.70   +18 51 13.6         00YF2     950  Ce6592      
2001 12  13.01775  03 42 19.53   +18 51 12.8         00YF2     950  Ce6592      
2002 01  13.89449  03 40 34.12   +18 45 59.7         00YF2     950  Ce6592      
2002 01  13.97484  03 40 33.96   +18 45 58.8   23.4R 00YF2     950  Ce6592      
2005 10  27.50617  04 04 17.48   +20 06 17.3   23.4R 00YF2     568  Cp1834      
2005 10  27.58247  04 04 17.18   +20 06 16.2         00YF2     568  Cp1834      
2006 08  04.26200  04 10 09.11   +20 24 51.3   23.4R 00YF2     250  S~06AO      
2006 08  04.26640  04 10 09.13   +20 24 51.3         00YF2     250  S~06AO      
2006 08  04.27080  04 10 09.14   +20 24 51.3         00YF2     250  S~06AO      
2006 08  04.27519  04 10 09.15   +20 24 51.4         00YF2     250  S~06AO      
2016 02  04.16781  04 45 44.00   +22 04 47.1   24.1R 00YF2     G37  C~1luu      
2016 02  04.29893  04 45 43.70   +22 04 45.7         00YF2     G37  C~1luu      

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    -0.66       0.00     0.00
  2   0.0001     -2.49    -0.45      -0.64    -0.70
  3   0.0003     -5.35    -0.57      -0.99    -1.10
  4   0.0027    -54.61     0.01      -0.35    -1.24
  5   0.1859  -1462.41    -0.01      87.60     0.37
  6   0.1886  -1440.58     0.33      88.93     0.29
  7   0.7618   8930.72     0.04     118.08     0.22
  8   0.7620   8928.97     0.27     118.06     0.22
  9   0.7621   8927.36     0.22     118.00     0.19
 10   0.9878   4284.30     0.08     124.04     0.15
 11   0.9879   4281.47     0.28     124.39     0.45
 12   0.9880   4278.93     0.18     124.15     0.17
 13   1.0753   2749.75     0.33     157.96     0.47
 14   1.0755   2747.34     0.59     157.60    -0.00
 15   4.8607  23546.54    -0.76     622.45     0.27
 16   4.8609  23542.12    -0.64     622.19    -0.01
 17   5.6293  28697.72     0.13     780.72     0.22
 18   5.6294  28698.01     0.24     780.67     0.17
 19   5.6294  28698.15     0.20     780.64     0.14
 20   5.6294  28698.31     0.19     780.71     0.22
 21  15.1322  60587.15     0.42    2046.19     0.26
 22  15.1325  60582.46    -0.37    2045.29    -0.72

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.

00YF2    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.931    45.945    45.916
ecceobj         0.070     0.070     0.070
incobj          2.004     2.004     2.004
qmin           41.491    41.511    41.479
qmax           50.040    50.010    49.989
amean          45.623    45.638    45.609
amin           45.259    45.272    45.242
amax           46.014    46.029    45.999
emean           0.073     0.073     0.073
emin            0.060     0.060     0.061
emax            0.087     0.087     0.087
imean           0.601     0.602     0.601
imin            0.101     0.103     0.097
imax            0.982     0.980     0.984
excite_mean     0.074     0.074     0.074
fracstop        1.000     1.000     1.000
cjmean          3.115     3.115     3.115

libcent 0      -180.0    -180.0     182.3
libamp  0      -180.0    -180.0     177.1
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       184.4     184.0     184.8
kozaiamp        179.9     180.0     179.9