Orbit Fit and Astrometric record for 10SB41

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: 10SB41    
# Created Tue Dec 12 02:37:41 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:  77.75d
# First observation: 2010/09/15
#  Last observation: 2010/12/02
Preliminary a, adot, b, bdot, g, gdot:
  -0.000012   0.062907   0.000016  -0.003284   0.038359   0.000000
# Chi-squared of fit:    32.24 DOF:   24 RMS:  0.26
# Min/Max residuals:    -0.61    0.63
# Exact a, adot, b, bdot, g, gdot:
  2.099321E-05  4.708835E-02 -1.526701E-06 -2.865482E-03  3.586498E-02 -4.150038E-03
# Covariance matrix:
  3.8027E-13 -2.1006E-11 -1.8476E-14  4.1940E-13 -1.7275E-12  3.3795E-10
 -2.1006E-11  1.4961E-08  1.4809E-11 -3.6506E-10  1.9759E-09 -1.4178E-07
 -1.8476E-14  1.4809E-11  2.5663E-13 -2.0128E-12  1.9634E-12 -1.3955E-10
  4.1940E-13 -3.6506E-10 -2.0128E-12  2.7956E-11 -4.8667E-11  3.3910E-09
 -1.7275E-12  1.9759E-09  1.9634E-12 -4.8667E-11  2.6740E-10 -1.7615E-08
  3.3795E-10 -1.4178E-07 -1.3955E-10  3.3910E-09 -1.7615E-08  1.5555E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.987159    7.541264    0.260720   -0.067247   -0.964435  2455455.000476
# Heliocentric elements and errors
Epoch:              2455450.5000  =  2010/09/11
Mean Anomaly:          346.91609 +/-     2.789
Argument of Peri:      252.47579 +/-     5.699
Long of Asc Node:      139.33985 +/-     0.078
Inclination:             5.20456 +/-     0.006
Eccentricity:         0.29354847 +/-    0.0177
Semi-Major Axis:     39.99428929 +/-    0.5705
Time of Perihelion: 2458808.1125 +/-     712.1
Perihelion:          28.25402697 +/-    0.8156
Aphelion:            51.73455162 +/-    1.0234
Period (y)              252.9328 +/-      5.41
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.57103208 +/-    0.0126
Ecliptic Y            3.51803526 +/-    0.0017
Ecliptic Z           -1.93877423 +/-    0.0009
Ecliptic XDOT        -0.00079971 +/-    0.0001
Ecliptic YDOT         0.00352640 +/-    0.0000
Ecliptic ZDOT        -0.00019620 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.85202405 +/-    0.0125
Geocenter to KBO     27.88234862 +/-    0.0127
# Hcoef:  8.25

The following table shows the complete astrometric record for 10SB41. 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 (10SB41) followed by the observatory code and reference code for the source of the astrometry.

2010 09  15.49971  00 33 59.700  -00 40 16.90  23.2w 10SB41    F51  C~1w3k      
2010 09  16.44234  00 33 54.240  -00 40 55.84  22.9w 10SB41    F51  C@0612      
2010 09  16.45360  00 33 54.163  -00 40 56.44  23.5w 10SB41    F51  C@0612      
2010 09  16.46488  00 33 54.127  -00 40 56.93  23.0w 10SB41    F51  C@0612      
2010 10  04.41385  00 32 05.793  -00 53 18.99  23.0w 10SB41    F51  C@0612      
2010 10  04.42713  00 32 05.723  -00 53 19.58  22.3w 10SB41    F51  C@0612      
2010 10  04.44267  00 32 05.620  -00 53 20.17  22.6w 10SB41    F51  C@0612      
2010 10  04.45660  00 32 05.545  -00 53 20.33  22.9w 10SB41    F51  C@0612      
2010 11  01.47461  00 29 25.43   -01 09 55.9         10SB41    D35  C~0OrT      
2010 11  01.53685  00 29 25.10   -01 09 57.2         10SB41    D35  C~0OrT      
2010 11  01.61748  00 29 24.71   -01 09 59.7         10SB41    D35  C~0OrT      
2010 11  01.69420  00 29 24.33   -01 10 02.4         10SB41    D35  C~0OrT      
2010 11  14.487572 00 28 27.239  -01 15 14.45  22.3R 10SB41    568  C~0PNK      
2010 12  02.14711  00 27 35.43   -01 19 03.1   22.4R 10SB41    688  C~0Po2      
2010 12  02.25232  00 27 35.13   -01 19 02.9         10SB41    688  C~0Po2      

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    -0.05       0.00     0.05
  2   0.0026    -90.61     0.02      -3.49     0.10
  3   0.0026    -91.91    -0.17      -3.58     0.03
  4   0.0026    -92.60     0.25      -3.82    -0.17
  5   0.0518  -1878.46    -0.20     -45.06    -0.03
  6   0.0518  -1879.66    -0.04     -45.19    -0.15
  7   0.0519  -1881.31    -0.11     -45.12    -0.08
  8   0.0519  -1882.41     0.22     -44.82     0.21
  9   0.1286  -4482.40    -0.06     -13.26    -0.08
 10   0.1288  -4487.47    -0.03     -12.50     0.45
 11   0.1290  -4493.83     0.20     -12.49     0.14
 12   0.1292  -4500.14     0.15     -12.73    -0.38
 13   0.1642  -5410.53    -0.26      37.84    -0.11
 14   0.2126  -6215.35     0.48     133.80    -0.61
 15   0.2129  -6219.41    -0.42     135.76     0.63

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.

10SB41    quality flag:2

Type:           3:2E  CENTAURR  CENTAURR

axisobj        40.004    41.683    39.060
ecceobj         0.294     0.344     0.265
incobj          5.205     5.187     5.223
qmin           27.751    26.717    27.968
qmax           52.218    56.014    51.363
amean          39.456    40.328    38.142
amin           38.859    38.900    36.579
amax           40.212    41.683    40.232
emean           0.282     0.327     0.254
emin            0.269     0.306     0.232
emax            0.299     0.344     0.281
imean           4.294     3.765     2.954
imin            3.661     3.416     2.454
imax            4.913     4.144     3.977
excite_mean     0.292     0.333     0.259
fracstop        1.000     0.004     0.003
cjmean          2.953     2.930     2.964

libcent 0       180.0    -180.0    -180.0
libamp  0       127.7    -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       192.8     282.7     261.4
kozaiamp        180.0      15.8      24.1