Orbit Fit and Astrometric record for 00JF81

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: 00JF81    
# Created Tue Oct 24 01:37:07 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:  14.07y
# First observation: 2000/05/06
#  Last observation: 2014/05/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.001146   0.022269  -0.000033   0.000496   0.020920   0.000000
# Chi-squared of fit:    86.57 DOF:   42 RMS:  0.34
# Min/Max residuals:    -0.74    0.58
# Exact a, adot, b, bdot, g, gdot:
  1.715652E-05  2.120185E-02  1.110112E-06  4.697265E-04  2.260087E-02 -2.153568E-03
# Covariance matrix:
  1.2419E-13 -4.5623E-14  9.4217E-16 -8.3076E-16  4.3091E-14 -1.2937E-13
 -4.5623E-14  4.1998E-14 -1.0096E-15  9.0434E-16 -4.2549E-14  1.4097E-13
  9.4217E-16 -1.0096E-15  9.1616E-14 -1.0139E-14  2.2246E-15 -3.7258E-15
 -8.3076E-16  9.0434E-16 -1.0139E-14  3.2688E-15 -1.1294E-15  3.2963E-15
  4.3091E-14 -4.2549E-14  2.2246E-15 -1.1294E-15  3.1491E-13 -1.6758E-13
 -1.2937E-13  1.4097E-13 -3.7258E-15  3.2963E-15 -1.6758E-13  5.1341E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.224175 -136.823638   -0.044886    0.021510   -1.014786  2451670.547483
# Heliocentric elements and errors
Epoch:              2451670.5000  =  2000/05/06
Mean Anomaly:          282.87171 +/-     0.035
Argument of Peri:      131.91754 +/-     0.048
Long of Asc Node:      179.99120 +/-     0.004
Inclination:             1.74678 +/-     0.000
Eccentricity:         0.10100464 +/-    0.0000
Semi-Major Axis:     45.82822139 +/-    0.0048
Time of Perihelion: 2475948.2897 +/-      10.5
Perihelion:          41.19935828 +/-    0.0046
Aphelion:            50.45708449 +/-    0.0055
Period (y)              310.2471 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -32.96170744 +/-    0.0008
Ecliptic Y          -30.99244828 +/-    0.0007
Ecliptic Z            0.94531661 +/-    0.0000
Ecliptic XDOT         0.00194202 +/-    0.0000
Ecliptic YDOT        -0.00168726 +/-    0.0000
Ecliptic ZDOT         0.00005145 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.25372505 +/-    0.0008
Geocenter to KBO     44.24608230 +/-    0.0011
# Hcoef:  7.17

The following table shows the complete astrometric record for 00JF81. 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 (00JF81) followed by the observatory code and reference code for the source of the astrometry.

2000 05  06.04674  14 44 25.26   -14 37 34.8   23.0R 00JF81    809  Cb5923      
2000 05  06.14545  14 44 24.85   -14 37 33.0         00JF81    809  Cb5923      
2000 05  06.24139  14 44 24.43   -14 37 31.0         00JF81    809  Cb5923      
2000 05  06.33509  14 44 23.97   -14 37 28.7         00JF81    809  Cb5923      
2000 05  07.30056  14 44 19.72   -14 37 09.6         00JF81    809  Cb5923      
2000 06  26.97585  14 41 14.60   -14 23 25.1         00JF81    950  Cb7059      
2000 06  27.01283  14 41 14.54   -14 23 25.1         00JF81    950  Cb7059      
2000 06  27.02878  14 41 14.49   -14 23 25.2         00JF81    950  Cb7059      
2000 06  28.00180  14 41 12.26   -14 23 15.8         00JF81    950  Cb7059      
2000 06  28.03820  14 41 12.20   -14 23 15.8         00JF81    950  Cb7059      
2001 04  29.42056  14 49 45.51   -14 59 59.5   22.8R 00JF81    695  Ci2627      
2001 04  29.45182  14 49 45.38   -14 59 58.7         00JF81    695  Ci2627      
2002 03  15.16366  14 57 23.82   -15 32 36.5   23.7R 00JF81    950  Cf4570      
2002 03  15.19673  14 57 23.72   -15 32 36.3         00JF81    950  Cf4570      
2002 03  15.23773  14 57 23.61   -15 32 35.8   23.6R 00JF81    950  Cf4570      
2002 04  06.42633  14 56 14.45   -15 27 05.2         00JF81    696  Cf4570      
2002 04  06.45289  14 56 14.35   -15 27 04.5         00JF81    696  Cf4570      
2002 04  06.48315  14 56 14.23   -15 27 04.0         00JF81    696  Cf4570      
2007 05  11.37392  15 18 43.73   -16 50 31.3   23.3R 00JF81    250  S~06AM      
2007 05  11.38087  15 18 43.70   -16 50 31.2         00JF81    250  S~06AM      
2007 05  11.38850  15 18 43.67   -16 50 31.1         00JF81    250  S~06AM      
2007 05  11.43920  15 18 43.43   -16 50 30.2         00JF81    250  S~06AM      
2014 05  30.24132  15 53 40.71   -18 41 00.3   23.5R 00JF81    695  C~1LJ2      
2014 05  30.37149  15 53 40.06   -18 40 58.4         00JF81    695  C~1LJ2      

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    -0.48       0.00    -0.16
  2   0.0003     -6.22     0.05      -0.07    -0.21
  3   0.0005    -12.63     0.21       0.01    -0.12
  4   0.0008    -19.69    -0.43       0.21     0.07
  5   0.0034    -84.26     0.12      -0.07    -0.40
  6   0.1422  -2896.24    -0.38     -24.47     0.29
  7   0.1423  -2897.07     0.12     -24.73     0.07
  8   0.1423  -2897.73     0.03     -25.05    -0.23
  9   0.1450  -2931.46    -0.09     -25.91    -0.07
 10   0.1451  -2932.29     0.34     -26.18    -0.29
 11   0.9812   4834.79     0.18      95.11     0.04
 12   0.9813   4832.76     0.28      95.32     0.24
 13   1.8566  11761.01     0.05     145.10     0.55
 14   1.8567  11759.56    -0.15     144.88     0.29
 15   1.8568  11757.89    -0.28     144.91     0.26
 16   1.9175  10702.28     0.24     175.42     0.35
 17   1.9176  10700.69     0.19     175.68     0.58
 18   1.9177  10698.88     0.14     175.66     0.54
 19   7.0125  30990.15    -0.08     694.81    -0.67
 20   7.0126  30989.69    -0.05     694.80    -0.69
 21   7.0126  30989.24     0.03     694.78    -0.70
 22   7.0127  30985.60    -0.07     694.75    -0.74
 23  14.0649  63311.20     0.25    1442.31     0.51
 24  14.0652  63300.88    -0.23    1442.16     0.48

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.

00JF81    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.834    45.849    45.820
ecceobj         0.102     0.102     0.102
incobj          1.747     1.747     1.747
qmin           40.817    40.852    40.820
qmax           51.821    51.839    51.803
amean          46.176    46.188    46.162
amin           45.789    45.805    45.775
amax           46.591    46.602    46.581
emean           0.100     0.100     0.100
emin            0.087     0.087     0.087
emax            0.113     0.113     0.113
imean           2.445     2.443     2.447
imin            1.957     1.958     1.958
imax            2.838     2.842     2.840
excite_mean     0.109     0.109     0.109
fracstop        1.000     1.000     1.000
cjmean          3.114     3.114     3.113

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       174.2     174.4     173.8
kozaiamp        180.0     180.0     180.0