Orbit Fit and Astrometric record for 03UB292

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: 03UB292   
# Created Sun Oct 22 01:37:26 2017
# Orbit generated from Bernstein formalism
# Fitting   30 observations of   30
# Arc:  13.99y
# First observation: 1999/10/13
#  Last observation: 2013/10/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.001050   0.017107  -0.000482   0.005981   0.021162   0.000000
# Chi-squared of fit:   181.55 DOF:   54 RMS:  0.43
# Min/Max residuals:    -0.84    0.75
# Exact a, adot, b, bdot, g, gdot:
  9.675527E-06  1.683680E-02  8.563498E-06  5.881374E-03  2.055180E-02  2.753608E-04
# Covariance matrix:
  4.0910E-13 -9.2510E-14  6.3015E-14 -2.2935E-14  2.2526E-14 -2.6308E-13
 -9.2510E-14  3.3301E-14 -2.8731E-14  1.0564E-14  3.6978E-14  1.2091E-13
  6.3015E-14 -2.8731E-14  2.2493E-13 -3.4542E-14 -4.4130E-14 -1.1960E-13
 -2.2935E-14  1.0564E-14 -3.4542E-14  7.7737E-15  1.6703E-14  4.4056E-14
  2.2526E-14  3.6978E-14 -4.4130E-14  1.6703E-14  2.6842E-13  1.9000E-13
 -2.6308E-13  1.2091E-13 -1.1960E-13  4.4056E-14  1.9000E-13  5.0405E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.948015   31.089591    0.196935    0.015834   -0.970111  2451464.868037
# Heliocentric elements and errors
Epoch:              2451460.5000  =  1999/10/09
Mean Anomaly:          165.13810 +/-     0.048
Argument of Peri:      196.36044 +/-     0.043
Long of Asc Node:       28.19033 +/-     0.000
Inclination:            19.20787 +/-     0.000
Eccentricity:         0.04737197 +/-    0.0001
Semi-Major Axis:     47.45606674 +/-    0.0041
Time of Perihelion: 2516094.4173 +/-      14.3
Perihelion:          45.20797939 +/-    0.0050
Aphelion:            49.70415410 +/-    0.0053
Period (y)              326.9233 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.60256727 +/-    0.0011
Ecliptic Y           25.45716828 +/-    0.0006
Ecliptic Z            0.80547200 +/-    0.0000
Ecliptic XDOT        -0.00114245 +/-    0.0000
Ecliptic YDOT         0.00194111 +/-    0.0000
Ecliptic ZDOT         0.00078407 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   49.63562168 +/-    0.0010
Geocenter to KBO     48.65753863 +/-    0.0012
# Hcoef:  5.89

The following table shows the complete astrometric record for 03UB292. 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 (03UB292) followed by the observatory code and reference code for the source of the astrometry.

1999 10  13.367294 01 54 27.49   +12 44 29.9         03UB292   645  C~1Vx6      
1999 10  13.368124 01 54 27.48   +12 44 29.9         03UB292   645  C~1Vx6      
1999 10  13.370611 01 54 27.47   +12 44 29.8         03UB292   645  C~1Vx6      
2003 10  23.19270  02 06 50.27   +15 17 04.6   22.1R 03UB292   695  Cj5825      
2003 10  23.28746  02 06 49.87   +15 17 02.8         03UB292   695  Cj5825      
2003 11  22.14830  02 04 47.80   +15 07 52.4   22.4R 03UB292   695  Cj5825      
2003 11  22.22905  02 04 47.49   +15 07 51.3         03UB292   695  Cj5825      
2003 11  24.17387  02 04 40.29   +15 07 17.3   22.4R 03UB292   695  Cj5825      
2003 11  24.24305  02 04 40.02   +15 07 15.9         03UB292   695  Cj5825      
2004 11  09.18872  02 08 53.30   +15 50 00.0   22.0R 03UB292   695  Cl9848      
2004 11  09.28093  02 08 52.82   +15 49 58.7         03UB292   695  Cl9848      
2004 11  10.26483  02 08 48.76   +15 49 40.3         03UB292   695  Cl9848      
2004 12  10.13882  02 07 01.63   +15 41 17.5   22.5R 03UB292   688  Cm1746      
2004 12  10.22410  02 07 01.32   +15 41 16.9         03UB292   688  Cm1746      
2004 12  11.10378  02 06 58.89   +15 41 04.8   22.0R 03UB292   688  Cm1746      
2004 12  11.18502  02 06 58.62   +15 41 03.6         03UB292   688  Cm1746      
2005 09  30.35157  02 14 56.48   +16 39 26.2   22.5R 03UB292   688  Co3932      
2005 09  30.44290  02 14 56.14   +16 39 25.5         03UB292   688  Co3932      
2005 12  06.277730 02 10 31.03   +16 20 27.2   22.7V 03UB292   645  C~1Fhi      
2005 12  06.278559 02 10 31.03   +16 20 27.2   22.6V 03UB292   645  C~1Fhi      
2005 12  06.281047 02 10 31.02   +16 20 27.2   23.0V 03UB292   645  C~1Fhi      
2006 12  24.13231  02 13 01.93   +16 54 28.3   22.4R 03UB292   688  Ct2142      
2006 12  24.23662  02 13 01.70   +16 54 27.1         03UB292   688  Ct2142      
2008 09  10.32324  02 26 01.62   +18 34 42.8   25.1R 03UB292   250  S~06Af      
2008 09  10.32949  02 26 01.61   +18 34 42.7         03UB292   250  S~06Af      
2008 09  10.38990  02 26 01.45   +18 34 42.4         03UB292   250  S~06Af      
2008 09  10.39615  02 26 01.42   +18 34 42.2         03UB292   250  S~06Af      
2013 10  07.38242  02 41 55.49   +21 34 10.1   22.4R 03UB292   695  C~0zdX      
2013 10  07.44397  02 41 55.26   +21 34 09.3         03UB292   695  C~0zdX      
2013 10  07.50413  02 41 55.02   +21 34 08.6         03UB292   695  C~0zdX      

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     0.68       0.00    -0.83
  2   0.0000     -0.14     0.59       0.05    -0.79
  3   0.0000     -0.31     0.58       0.01    -0.84
  4   4.0269  13315.84    -0.73    4895.28     0.37
  5   4.0272  13309.76    -0.69    4895.53     0.27
  6   4.1089  11453.64    -0.50    4973.60     0.26
  7   4.1091  11449.03    -0.43    4974.08     0.56
  8   4.1145  11339.06    -0.60    4977.39     0.33
  9   4.1146  11334.89    -0.84    4977.39     0.19
 10   5.0755  15667.37     0.75    6165.23    -0.47
 11   5.0757  15660.36    -0.38    6166.32     0.36
 12   5.0784  15598.61    -0.52    6168.53     0.30
 13   5.1602  13963.98     0.07    6212.41    -0.43
 14   5.1605  13959.54    -0.55    6213.35     0.42
 15   5.1629  13922.23     0.31    6213.73     0.18
 16   5.1631  13918.14    -0.22    6213.91     0.27
 17   5.9657  21638.30    -0.31    7245.53     0.10
 18   5.9660  21633.40    -0.13    7246.46     0.57
 19   6.1490  17620.21     0.53    7425.76    -0.01
 20   6.1490  17620.21     0.57    7425.76    -0.01
 21   6.1490  17620.07     0.56    7425.81     0.03
 22   7.1972  20370.07     0.43    8645.16     0.26
 23   7.1975  20366.52     0.36    8645.11     0.23
 24   8.9116  33085.62     0.17   10813.41     0.10
 25   8.9116  33085.45     0.22   10813.36     0.01
 26   8.9118  33083.14     0.10   10813.79     0.02
 27   8.9118  33082.66    -0.15   10813.73    -0.08
 28  13.9850  49890.26     0.04   17272.25    -0.29
 29  13.9852  49886.76     0.11   17272.39    -0.50
 30  13.9853  49883.14    -0.02   17272.67    -0.56

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.

03UB292    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.450    47.463    47.438
ecceobj         0.047     0.047     0.048
incobj         19.210    19.210    19.210
qmin           43.719    43.772    43.706
qmax           50.768    50.783    50.771
amean          47.139    47.151    47.127
amin           46.770    46.768    46.757
amax           47.544    47.542    47.520
emean           0.057     0.057     0.057
emin            0.047     0.046     0.047
emax            0.069     0.068     0.068
imean          18.875    18.875    18.875
imin           18.638    18.642    18.641
imax           19.113    19.126    19.119
excite_mean     0.329     0.328     0.329
fracstop        1.000     1.000     1.000
cjmean          3.003     3.003     3.003

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       179.9     179.7     179.9
kozaiamp        179.9     180.0     180.0