Orbit Fit and Astrometric record for 03UN292

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: 03UN292   
# Created Mon Dec 11 02:37:21 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:  12.28y
# First observation: 2003/10/24
#  Last observation: 2016/02/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000820   0.025839  -0.000009   0.000343   0.023071   0.000000
# Chi-squared of fit:    29.00 DOF:   26 RMS:  0.24
# Min/Max residuals:    -0.69    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.629828E-05  2.534342E-02  9.555942E-07  3.338637E-04  2.486527E-02 -1.479557E-03
# Covariance matrix:
  3.0032E-13 -8.3590E-14  1.2572E-15 -1.2697E-15  3.7419E-13 -3.8215E-13
 -8.3590E-14  5.9252E-14 -9.2586E-16  7.4089E-16  2.5042E-14  1.8343E-13
  1.2572E-15 -9.2586E-16  1.6849E-13 -2.1452E-14  7.8636E-16 -3.6893E-15
 -1.2697E-15  7.4089E-16 -2.1452E-14  5.8371E-15 -2.4151E-15  3.6995E-15
  3.7419E-13  2.5042E-14  7.8636E-16 -2.4151E-15  2.7438E-12 -1.0572E-12
 -3.8215E-13  1.8343E-13 -3.6893E-15  3.6995E-15 -1.0572E-12  1.1081E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.462211   54.915660    0.415721    0.007348   -0.904869  2452936.878223
# Heliocentric elements and errors
Epoch:              2452930.5000  =  2003/10/18
Mean Anomaly:          324.84370 +/-     0.066
Argument of Peri:       74.06001 +/-     0.083
Long of Asc Node:       23.71852 +/-     0.007
Inclination:             0.88736 +/-     0.000
Eccentricity:         0.11188565 +/-    0.0001
Semi-Major Axis:     45.02962328 +/-    0.0134
Time of Perihelion: 2463708.7084 +/-      19.5
Perihelion:          39.99145464 +/-    0.0136
Aphelion:            50.06779192 +/-    0.0163
Period (y)              302.1730 +/-      0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.97174231 +/-    0.0015
Ecliptic Y           33.41374279 +/-    0.0022
Ecliptic Z            0.32446973 +/-    0.0000
Ecliptic XDOT        -0.00238201 +/-    0.0000
Ecliptic YDOT         0.00146434 +/-    0.0000
Ecliptic ZDOT         0.00003561 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.12454155 +/-    0.0020
Geocenter to KBO     40.21674181 +/-    0.0027
# Hcoef:  7.43

The following table shows the complete astrometric record for 03UN292. 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 (03UN292) followed by the observatory code and reference code for the source of the astrometry.

2003 10  24.37748  03 29 46.71   +19 26 40.4   23.1R 03UN292   695  Cj5825      
2003 10  24.47026  03 29 46.30   +19 26 39.0         03UN292   695  Cj5825      
2003 11  20.27822  03 27 32.61   +19 18 51.9   22.9R 03UN292   695  Cj5825      
2003 11  20.35000  03 27 32.24   +19 18 50.6         03UN292   695  Cj5825      
2004 10  10.41338  03 36 40.89   +19 51 35.7   22.3R 03UN292   695  Cl9848      
2004 10  10.48100  03 36 40.64   +19 51 34.5         03UN292   695  Cl9848      
2004 11  09.37548  03 34 23.54   +19 44 02.4   22.6R 03UN292   695  Cl9848      
2004 11  09.46925  03 34 23.08   +19 44 00.8         03UN292   695  Cl9848      
2007 11  09.32991  03 52 39.37   +20 46 16.9         03UN292   695  Cy4001      
2007 11  09.37446  03 52 39.14   +20 46 16.1         03UN292   695  Cy4001      
2008 11  20.25721  03 57 48.02   +21 02 38.1   24.6R 03UN292   250  S~06Af      
2008 11  20.26416  03 57 47.98   +21 02 38.0         03UN292   250  S~06Af      
2008 11  20.27041  03 57 47.95   +21 02 37.8         03UN292   250  S~06Af      
2008 11  20.27735  03 57 47.91   +21 02 37.8         03UN292   250  S~06Af      
2016 02  04.16200  04 36 38.60   +22 44 01.9   23.7R 03UN292   G37  C~1lv5      
2016 02  04.29312  04 36 38.33   +22 44 01.2         03UN292   G37  C~1lv5      

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    -0.04       0.00    -0.15
  2   0.0003     -5.97     0.32       0.05    -0.16
  3   0.0737  -1954.55    -0.11       8.73     0.07
  4   0.0738  -1959.95    -0.04       8.76     0.07
  5   0.9638   6040.23    -0.07      62.56     0.47
  6   0.9640   6036.52     0.01      62.21     0.07
  7   1.0459   4048.29    -0.18      76.00    -0.00
  8   1.0461   4041.60     0.18      75.97    -0.05
  9   4.0437  19974.70    -0.30     284.87    -0.56
 10   4.0438  19971.35    -0.32     284.76    -0.69
 11   5.0756  24460.52     0.17     358.99     0.25
 12   5.0757  24459.95     0.13     359.00     0.27
 13   5.0757  24459.49     0.15     358.89     0.15
 14   5.0757  24458.93     0.12     359.00     0.27
 15  12.2814  58865.12     0.13     843.21     0.02
 16  12.2818  58861.01    -0.16     843.02    -0.03

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.

03UN292    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.342    45.383    45.302
ecceobj         0.114     0.115     0.114
incobj          0.883     0.883     0.883
qmin           39.008    39.012    38.976
qmax           51.240    51.382    51.204
amean          44.982    45.022    44.943
amin           44.606    44.651    44.581
amax           45.391    45.439    45.347
emean           0.114     0.115     0.114
emin            0.100     0.100     0.099
emax            0.130     0.131     0.129
imean           1.545     1.553     1.539
imin            0.771     0.790     0.753
imax            2.156     2.149     2.162
excite_mean     0.118     0.119     0.117
fracstop        1.000     1.000     1.000
cjmean          3.096     3.097     3.096

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       171.2     168.6     173.6
kozaiamp        180.0     180.0     180.0