Orbit Fit and Astrometric record for 05EX318

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: 05EX318   
# Created Tue Dec 12 02:37:28 2017
# Orbit generated from Bernstein formalism
# Fitting   37 observations of   40
# Arc:  13.24y
# First observation: 2002/03/12
#  Last observation: 2015/06/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.000273   0.037680  -0.000109   0.001440   0.038354   0.000000
# Chi-squared of fit:    32.74 DOF:   68 RMS:  0.17
# Min/Max residuals:    -0.39    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.825550E-05  3.797475E-02  6.872527E-07  1.409756E-03  3.189453E-02  5.057305E-03
# Covariance matrix:
  4.3172E-13 -1.0929E-13  2.9813E-15 -2.8809E-15 -1.1118E-14 -1.7033E-13
 -1.0929E-13  7.9337E-14 -1.8678E-15  2.6236E-15 -4.0864E-14  1.7278E-13
  2.9813E-15 -1.8678E-15  3.3656E-13 -2.9361E-14 -3.7825E-15 -3.2913E-15
 -2.8809E-15  2.6236E-15 -2.9361E-14  2.9771E-15 -7.7223E-16  5.8066E-15
 -1.1118E-14 -4.0864E-14 -3.7825E-15 -7.7223E-16  2.7275E-13 -1.4115E-13
 -1.7033E-13  1.7278E-13 -3.2913E-15  5.8066E-15 -1.4115E-13  3.9996E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.496596  171.258894   -0.009448    0.112360   -0.987440  2452345.770501
# Heliocentric elements and errors
Epoch:              2452340.5000  =  2002/03/07
Mean Anomaly:           27.77004 +/-     0.006
Argument of Peri:       27.52976 +/-     0.008
Long of Asc Node:      100.06420 +/-     0.001
Inclination:             6.64919 +/-     0.000
Eccentricity:         0.22801826 +/-    0.0001
Semi-Major Axis:     39.72986621 +/-    0.0039
Time of Perihelion: 2445284.6712 +/-       1.2
Perihelion:          30.67073110 +/-    0.0039
Aphelion:            48.78900133 +/-    0.0054
Period (y)              250.4286 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -31.77302715 +/-    0.0005
Ecliptic Y            4.88083798 +/-    0.0001
Ecliptic Z            3.54748766 +/-    0.0001
Ecliptic XDOT        -0.00091661 +/-    0.0000
Ecliptic YDOT        -0.00315952 +/-    0.0000
Ecliptic ZDOT         0.00016957 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.34087974 +/-    0.0005
Geocenter to KBO     31.35333867 +/-    0.0005
# Hcoef:  6.92

The following table shows the complete astrometric record for 05EX318. 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 (05EX318) followed by the observatory code and reference code for the source of the astrometry.

2002 03  12.269758 11 38 14.31   +09 25 53.7   22.0V 05EX318   645  C~1vVO      
2002 03  12.270587 11 38 14.30   +09 25 53.7   21.4V 05EX318   645  C~1vVO      
2002 03  12.273075 11 38 14.29   +09 25 53.8   22.8V 05EX318   645  C~1vVO      
2005 03  08.42333  12 02 44.30   +06 59 58.4   21.8R 05EX318   675  Cn3361      
2005 03  08.47520  12 02 44.00   +07 00 00.6   21.6R 05EX318   675  Cn3361      
2005 03  10.38807  12 02 33.50   +07 01 14.1   21.7R 05EX318   675  Cn3361      
2005 03  10.43443  12 02 33.26   +07 01 15.9   21.7R 05EX318   675  Cn3361      
2012 02  28.51812  12 55 44.503  +01 26 01.65  22.5w 05EX318   F51  C~1vVO      
2012 02  28.53251  12 55 44.451  +01 26 02.18  22.3w 05EX318   F51  C~1vVO      
2012 02  28.54692  12 55 44.400  +01 26 02.84  22.4w 05EX318   F51  C~1vVO      
2012 02  28.56136  12 55 44.316  +01 26 03.06  22.5w 05EX318   F51  C~1vVO      
2012 04  12.34122  12 52 03.355  +01 51 21.01  22.0w 05EX318   F51  C~1vVO      
2012 04  12.35516  12 52 03.273  +01 51 21.39  22.3w 05EX318   F51  C~1vVO      
2012 04  12.36910  12 52 03.196  +01 51 21.88  22.1w 05EX318   F51  C~1vVO      
2012 04  12.38313  12 52 03.127  +01 51 22.28  22.1w 05EX318   F51  C~1vVO      
2013 03  19.49656  13 01 17.022  +00 52 06.81  22.4w 05EX318   F51  C~1vVO      
2013 03  19.51197  13 01 16.946  +00 52 07.42  22.5w 05EX318   F51  C~1vVO      
2013 03  19.52740  13 01 16.870  +00 52 07.91  22.5w 05EX318   F51  C~1vVO      
2013 03  19.54283  13 01 16.789  +00 52 08.86  22.2w 05EX318   F51  C~1vVO      
2013 04  11.37449  12 59 16.032  +01 05 08.15  22.3w 05EX318   F51  C~1vVO      
2013 04  11.38815  12 59 15.960  +01 05 08.77  22.3w 05EX318   F51  C~1vVO      
2013 04  11.40185  12 59 15.883  +01 05 08.91  22.1w 05EX318   F51  C~1vVO      
2013 04  11.41561  12 59 15.811  +01 05 09.36  22.4w 05EX318   F51  C~1vVO      
2014 04  30.31707  13 04 40.931  +00 28 54.27  22.2w 05EX318   F51  C~1vVO      
2014 04  30.33025  13 04 40.860  +00 28 54.62  22.4w 05EX318   F51  C~1vVO      
2014 04  30.34342  13 04 40.791  +00 28 54.93  22.6w 05EX318   F51  C~1vVO      
2014 05  18.27912  13 03 22.490  +00 34 51.93  22.2w 05EX318   F51  C~1vVO      
2014 05  18.29037  13 03 22.438  +00 34 52.08  22.4w 05EX318   F51  C~1vVO      
2014 05  18.30164  13 03 22.395  +00 34 52.53  22.7w 05EX318   F51  C~1vVO      
2014 05  18.31290  13 03 22.349  +00 34 52.56  22.3w 05EX318   F51  C~1vVO      
2014 05  25.33773  13 02 57.530  +00 36 20.65  22.3w 05EX318   F51  C~1vVO      
2014 05  25.34915  13 02 57.484  +00 36 20.76  22.2w 05EX318   F51  C~1vVO      
2014 05  25.36059  13 02 57.436  +00 36 21.05  22.3w 05EX318   F51  C~1vVO      
2014 05  25.37206  13 02 57.425  +00 36 21.11  22.3w 05EX318   F51  C~1vVO      
2015 04  20.37921  13 12 28.557  -00 20 15.99  22.7w 05EX318   F51  C~1vVO      
2015 04  20.39274  13 12 28.470  -00 20 15.65  22.8w 05EX318   F51  C~1vVO      
2015 04  20.41971  13 12 28.343  -00 20 13.98  22.6w 05EX318   F51  C~1vVO      
2015 06  08.26609  13 09 12.213  -00 06 20.49  22.2w 05EX318   F51  C~1vVO      
2015 06  08.28955  13 09 12.150  -00 06 20.36  22.6w 05EX318   F51  C~1vVO      
2015 06  08.30129  13 09 12.119  -00 06 20.14  22.5w 05EX318   F51  C~1vVO      

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     0.12       0.00     0.00
  2   0.0000     -0.14     0.06      -0.06    -0.06
  3   0.0000     -0.31     0.12      -0.03    -0.03
  4   2.9902  23599.23 (   1.09)    859.47 (   0.42)
  5   2.9903  23594.19 (   0.80)    859.63 (   0.52)
  6   2.9955  23419.23    -0.38     862.08    -0.03
  7   2.9957  23415.18    -0.14     862.25     0.10
  8   9.9665  78569.35    -0.08    2887.93    -0.22
  9   9.9665  78568.28     0.04    2888.09    -0.11
 10   9.9665  78567.17     0.11    2888.37     0.13
 11   9.9666  78565.76    -0.12    2888.00    -0.29
 12  10.0864  74420.14     0.03    2829.67     0.06
 13  10.0865  74418.70    -0.05    2829.47    -0.04
 14  10.0865  74417.28    -0.09    2829.42     0.01
 15  10.0866  74416.03     0.03    2829.33     0.02
 16  11.0205  84792.05     0.12    3224.03    -0.24
 17  11.0205  84790.54     0.14    3224.10    -0.15
 18  11.0206  84789.09     0.23    3224.04    -0.18
 19  11.0206  84787.33     0.01    3224.40     0.20
 20  11.0831  82492.57     0.10    3140.36     0.16
 21  11.0831  82491.13     0.05    3140.46     0.36
 22  11.0832  82489.85     0.15    3140.06     0.06
 23  11.0832  82488.49     0.19    3140.00     0.09
 24  12.1343  88747.40     0.00    3292.91    -0.05
 25  12.1343  88746.08    -0.10    3292.75    -0.07
 26  12.1344  88744.81    -0.16    3292.57    -0.11
 27  12.1835  87308.78     0.02    3091.78     0.15
 28  12.1835  87307.88    -0.10    3091.56     0.08
 29  12.1835  87306.96    -0.23    3091.70     0.36
 30  12.1836  87306.21    -0.19    3091.41     0.21
 31  12.2028  86865.12     0.22    3003.44     0.11
 32  12.2028  86864.33     0.10    3003.23     0.04
 33  12.2028  86863.41    -0.14    3003.18     0.15
 34  12.2029  86863.21     0.33    3003.16     0.28
 35  13.1064  97908.33    -0.14    3698.90    -0.23
 36  13.1064  97906.71    -0.36    3698.62    -0.39
 37  13.1065  97903.72 (  -0.55)   3699.37 (   0.61)
 38  13.2402  94231.92     0.21    3126.85    -0.19
 39  13.2403  94230.82     0.03    3126.53    -0.17
 40  13.2403  94230.20    -0.13    3126.53    -0.01

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.

05EX318    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.417    39.429    39.406
ecceobj         0.223     0.223     0.223
incobj          6.652     6.652     6.652
qmin           30.202    30.185    30.197
qmax           49.533    49.507    49.455
amean          39.456    39.457    39.457
amin           38.921    38.908    38.894
amax           40.061    40.084    40.078
emean           0.217     0.219     0.217
emin            0.200     0.202     0.198
emax            0.237     0.237     0.236
imean           5.147     5.132     5.258
imin            4.254     4.252     4.271
imax            5.753     5.986     5.828
excite_mean     0.235     0.236     0.236
fracstop        1.000     1.000     1.000
cjmean          2.988     2.988     2.988

libcent 0       181.1     179.5     180.3
libamp  0       123.8     125.6     123.9
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       233.3     244.8     237.1
kozaiamp        180.0     180.0     180.0