Orbit Fit and Astrometric record for 01SE291

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: 01SE291   
# Created Sun Oct 22 01:37:15 2017
# Orbit generated from Bernstein formalism
# Fitting    9 observations of    9
# Arc:   2.17y
# First observation: 2001/09/18
#  Last observation: 2003/11/20
Preliminary a, adot, b, bdot, g, gdot:
   0.000015   0.027355  -0.000000  -0.000122   0.026455   0.000000
# Chi-squared of fit:    13.12 DOF:   12 RMS:  0.21
# Min/Max residuals:    -0.48    0.57
# Exact a, adot, b, bdot, g, gdot:
  1.672852E-05  2.711679E-02 -4.868959E-07 -1.197030E-04  2.572826E-02 -1.212057E-03
# Covariance matrix:
  5.2052E-13  1.4317E-11  1.2711E-15 -6.2558E-14  1.2429E-11  2.6481E-10
  1.4317E-11  9.3211E-10  8.0771E-14 -4.0217E-12  7.9483E-10  1.7136E-08
  1.2711E-15  8.0771E-14  2.9448E-13 -1.3860E-13  6.9893E-14  1.4754E-12
 -6.2558E-14 -4.0217E-12 -1.3860E-13  1.6315E-13 -3.4398E-12 -7.3851E-11
  1.2429E-11  7.9483E-10  6.9893E-14 -3.4398E-12  6.8344E-10  1.4561E-08
  2.6481E-10  1.7136E-08  1.4754E-12 -7.3851E-11  1.4561E-08  3.1558E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.602108    7.559099    0.216105   -0.027504   -0.978906  2452170.813883
# Heliocentric elements and errors
Epoch:              2452170.5000  =  2001/09/18
Mean Anomaly:          340.35001 +/-     6.425
Argument of Peri:      286.43678 +/-     8.760
Long of Asc Node:      106.69305 +/-     0.040
Inclination:             1.58401 +/-     0.000
Eccentricity:         0.13605737 +/-    0.0107
Semi-Major Axis:     45.57260794 +/-    0.2056
Time of Perihelion: 2458304.0797 +/-    2005.2
Perihelion:          39.37211887 +/-    0.5198
Aphelion:            51.77309701 +/-    0.5415
Period (y)              307.6550 +/-      2.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.51649255 +/-    0.0391
Ecliptic Y            5.03180563 +/-    0.0052
Ecliptic Z           -1.08667890 +/-    0.0011
Ecliptic XDOT        -0.00051643 +/-    0.0001
Ecliptic YDOT         0.00284450 +/-    0.0000
Ecliptic ZDOT        -0.00000892 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.85038422 +/-    0.0388
Geocenter to KBO     38.86776040 +/-    0.0395
# Hcoef:  7.52

The following table shows the complete astrometric record for 01SE291. 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 (01SE291) followed by the observatory code and reference code for the source of the astrometry.

2001 09  18.31314  00 30 17.87   +01 31 38.7   23.5R 01SE291   675  Ce0701      
2001 09  18.35660  00 30 17.68   +01 31 37.2   23.3R 01SE291   675  Ce0701      
2001 09  18.39686  00 30 17.50   +01 31 35.7   23.4R 01SE291   675  Ce0701      
2001 09  21.43637  00 30 03.69   +01 30 05.7         01SE291   675  Ce0701      
2001 09  21.46943  00 30 03.50   +01 30 05.1         01SE291   675  Ce0701      
2003 10  24.19583  00 39 04.54   +02 27 15.7   22.6R 01SE291   695  Cj5752      
2003 10  24.29463  00 39 04.07   +02 27 13.3         01SE291   695  Cj5752      
2003 11  20.10922  00 37 25.35   +02 17 22.9   23.0R 01SE291   695  Cj5752      
2003 11  20.19483  00 37 25.11   +02 17 21.6         01SE291   695  Cj5752      

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    -0.01       0.00     0.09
  2   0.0001     -3.21     0.03      -0.25    -0.17
  3   0.0002     -6.28    -0.02      -0.57    -0.48
  4   0.0086   -232.07     0.18      -1.58    -0.01
  5   0.0086   -234.92    -0.18      -1.01     0.57
  6   2.0969   8576.28     0.18     -42.69    -0.18
  7   2.0971   8568.84    -0.18     -42.13     0.24
  8   2.1706   6974.08    -0.09      -2.89    -0.04
  9   2.1708   6970.25     0.09      -2.67    -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.

01SE291    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.810    46.658    45.419
ecceobj         0.140     0.181     0.125
incobj          1.584     1.584     1.584
qmin           38.386    37.059    38.697
qmax           52.829    55.917    51.785
amean          45.432    46.256    45.061
amin           45.040    45.851    44.690
amax           45.848    46.737    45.469
emean           0.137     0.181     0.122
emin            0.122     0.166     0.105
emax            0.152     0.197     0.139
imean           0.811     0.955     0.845
imin            0.020     0.028     0.020
imax            1.380     1.627     1.410
excite_mean     0.138     0.182     0.124
fracstop        1.000     1.000     1.000
cjmean          3.096     3.088     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       183.7     186.2     193.2
kozaiamp        180.0     180.0     179.9