Orbit Fit and Astrometric record for 04VT75

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: 04VT75    
# Created Wed Oct 24 01:08:36 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   63 observations of   63
# Arc:   9.07y
# First observation: 2004/11/09
#  Last observation: 2013/12/06
# Chi-squared of fit:    58.60 DOF:  120 RMS:  0.17
# Min/Max residuals:    -0.42    0.79
# Exact a, adot, b, bdot, g, gdot:
  1.635459E-05  2.900659E-02  3.201189E-06  6.554866E-03  2.809219E-02  5.670674E-03
# Covariance matrix:
  1.3449E-13 -5.3856E-14  8.2922E-15 -8.9959E-15 -3.6476E-14 -1.6808E-13
 -5.3856E-14  4.9063E-14 -9.5108E-15  1.0462E-14  9.8680E-15  1.9680E-13
  8.2922E-15 -9.5108E-15  8.9175E-14 -1.5051E-14 -1.7438E-15 -4.0446E-14
 -8.9959E-15  1.0462E-14 -1.5051E-14  5.0841E-15  1.6041E-15  4.4555E-14
 -3.6476E-14  9.8680E-15 -1.7438E-15  1.6041E-15  7.1644E-14  2.7301E-14
 -1.6808E-13  1.9680E-13 -4.0446E-14  4.4555E-14  2.7301E-14  8.3876E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.354607   20.098810   -0.446664   -0.020874   -0.886498  2453318.674463
# Heliocentric elements and errors
Epoch:              2453318.5000  =  2004/11/09
Mean Anomaly:           59.60630 +/-     0.007
Argument of Peri:      271.26741 +/-     0.008
Long of Asc Node:       26.59997 +/-     0.000
Inclination:            12.86923 +/-     0.000
Eccentricity:         0.20944726 +/-    0.0000
Semi-Major Axis:     39.15959002 +/-    0.0019
Time of Perihelion: 2438498.5983 +/-       2.0
Perihelion:          30.95772126 +/-    0.0020
Aphelion:            47.36145879 +/-    0.0026
Period (y)              245.0560 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.09472582 +/-    0.0003
Ecliptic Y           12.95457899 +/-    0.0001
Ecliptic Z           -0.84139565 +/-    0.0000
Ecliptic XDOT        -0.00043959 +/-    0.0000
Ecliptic YDOT         0.00284268 +/-    0.0000
Ecliptic ZDOT         0.00062568 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.48247060 +/-    0.0003
Geocenter to KBO     35.59700865 +/-    0.0003
# Hcoef:  6.32

The following table shows the complete astrometric record for 04VT75. 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 (04VT75) followed by the observatory code and reference code for the source of the astrometry.

2004 11  09.17372  01 16 17.42   +06 36 05.7   21.4R 04VT75    695  Cm0643      
2004 11  10.24478  01 16 12.46   +06 35 41.3         04VT75    695  Cm0643      
2004 11  10.34498  01 16 11.99   +06 35 39.0         04VT75    695  Cm0643      
2004 12  04.16565  01 14 41.51   +06 28 45.3   21.5R 04VT75    688  Cm1190      
2004 12  04.32741  01 14 41.02   +06 28 42.9         04VT75    688  Cm1190      
2004 12  10.11622  01 14 25.97   +06 27 46.7   21.3R 04VT75    688  Cm1784      
2004 12  10.19032  01 14 25.80   +06 27 45.7         04VT75    688  Cm1784      
2004 12  11.08716  01 14 23.73   +06 27 38.6   21.2R 04VT75    688  Cm1784      
2004 12  11.16922  01 14 23.57   +06 27 37.9         04VT75    688  Cm1784      
2005 07  11.37672  01 28 28.13   +08 06 50.3   21.1R 04VT75    304  Co4000      
2005 07  11.42966  01 28 28.21   +08 06 50.8         04VT75    304  Co4000      
2005 08  08.33465  01 28 27.50   +08 07 42.9   20.6R 04VT75    807  Co4000      
2005 08  09.35786  01 28 26.00   +08 07 36.4         04VT75    807  Co4000      
2005 08  10.35358  01 28 24.46   +08 07 29.3         04VT75    807  Co4000      
2005 09  26.267096 01 25 40.41   +07 53 26.6   21.8V 04VT75    645  C~2JxB      
2005 09  26.267925 01 25 40.40   +07 53 26.8   21.2V 04VT75    645  C~2JxC      
2005 09  26.270413 01 25 40.42   +07 53 26.6   23.0V 04VT75    645  C~2JxC      
2005 09  29.32484  01 25 25.13   +07 52 06.6   21.1R 04VT75    688  Co4000      
2005 09  29.43407  01 25 24.57   +07 52 03.9         04VT75    688  Co4000      
2006 09  24.38001  01 31 24.18   +08 51 01.3   22.8R 04VT75    688  Cs1062      
2006 09  24.45618  01 31 23.77   +08 50 59.8         04VT75    688  Cs1062      
2008 09  21.26629  01 42 36.42   +10 42 21.1   22.9R 04VT75    250  S~06Al      
2008 09  21.27254  01 42 36.39   +10 42 21.0         04VT75    250  S~06Al      
2008 09  21.31213  01 42 36.21   +10 42 20.1         04VT75    250  S~06Al      
2008 09  21.31907  01 42 36.18   +10 42 20.0         04VT75    250  S~06Al      
2008 10  22.25283  01 39 59.79   +10 29 30.5   22.9r 04VT75    695  C~0gMD      
2008 10  22.28477  01 39 59.62   +10 29 29.6   22.7r 04VT75    695  C~0gMD      
2008 11  01.386306 01 39 06.70   +10 25 05.7   21.9V 04VT75    645  C~2JxC      
2008 11  01.387135 01 39 06.70   +10 25 05.8   21.5V 04VT75    645  C~2JxC      
2008 11  01.389623 01 39 06.68   +10 25 05.6   22.6V 04VT75    645  C~2JxC      
2008 11  30.17468  01 36 56.38   +10 14 25.4   20.2R 04VT75    688  C~02MY      
2008 11  30.23587  01 36 56.15   +10 14 24.6         04VT75    688  C~02MY      
2011 08  29.48991  02 00 15.259  +13 25 35.06  22.0r 04VT75    568  C~1C5w      
2011 08  29.54186  02 00 15.128  +13 25 34.71  22.0r 04VT75    568  C~1C5w      
2011 08  29.58893  02 00 14.999  +13 25 34.29  22.0r 04VT75    568  C~1C5w      
2011 09  05.52844  01 59 55.396  +13 24 25.00  22.1r 04VT75    568  C~1C5w      
2011 10  24.40763  01 56 13.800  +13 08 08.98  21.9r 04VT75    568  C~1C5w      
2011 10  24.45036  01 56 13.571  +13 08 07.92  21.9r 04VT75    568  C~1C5w      
2011 10  24.49308  01 56 13.342  +13 08 06.85  21.8r 04VT75    568  C~1C5w      
2011 10  26.42741  01 56 03.084  +13 07 18.27  21.9r 04VT75    568  C~1C5w      
2011 10  28.30461  01 55 53.152  +13 06 30.98  22.1r 04VT75    568  C~1C5w      
2011 10  29.31115  01 55 47.845  +13 06 05.72  22.0r 04VT75    568  C~1C5w      
2011 10  30.30434  01 55 42.596  +13 05 40.75  21.9r 04VT75    568  C~1C5w      
2011 10  30.52869  01 55 41.388  +13 05 35.04  21.9r 04VT75    568  C~1C5w      
2011 10  31.51164  01 55 36.225  +13 05 10.39  21.8r 04VT75    568  C~1C5w      
2011 11  24.27924  01 53 39.481  +12 55 44.97  22.1r 04VT75    568  C~1C5w      
2011 11  30.32546  01 53 14.020  +12 53 40.71  21.9r 04VT75    568  C~1C5w      
2012 01  25.27219  01 51 48.468  +12 47 27.71  22.1r 04VT75    568  C~1C5w      
2012 01  26.25696  01 51 49.809  +12 47 36.56  22.2r 04VT75    568  C~1C5w      
2012 01  27.31413  01 51 51.356  +12 47 46.45  22.3r 04VT75    568  C~1C5w      
2012 01  27.33441  01 51 51.377  +12 47 46.65  22.2r 04VT75    568  C~1C5w      
2012 02  21.23299  01 52 59.709  +12 54 38.87  22.2r 04VT75    568  C~1C5w      
2012 08  17.56436  02 05 56.627  +14 16 26.08  22.1r 04VT75    568  C~1C5w      
2012 08  24.52210  02 05 44.880  +14 16 04.70        04VT75    568  C~1C5w      
2012 10  17.36966  02 02 11.081  +14 01 45.30  22.0r 04VT75    568  C~1C5w      
2012 10  20.46455  02 01 54.789  +14 00 30.98  21.9r 04VT75    568  C~1C5w      
2013 01  14.33106  01 56 56.998  +13 36 49.84  22.0r 04VT75    568  C~1C5w      
2013 02  06.29444  01 57 26.324  +13 39 46.39  22.2r 04VT75    568  C~1C5w      
2013 02  17.26070  01 57 59.023  +13 42 52.76  22.0r 04VT75    568  C~1C5w      
2013 02  17.27964  01 57 59.080  +13 42 53.21  22.3r 04VT75    568  C~1C5w      
2013 12  06.20371  02 03 31.56   +14 32 47.3         04VT75    568  C~1CJc      
2013 12  06.20867  02 03 31.54   +14 32 47.2         04VT75    568  C~1CJc      
2013 12  06.21362  02 03 31.52   +14 32 47.1         04VT75    568  C~1CJc      

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     0.09
  2   0.0029      0.00    -0.13       0.00     0.04
  3   0.0032      0.00    -0.16       0.00     0.00
  4   0.0684      0.00     0.19       0.00     0.56
  5   0.0689      0.00    -0.02       0.00     0.02
  6   0.0847      0.00    -0.10       0.00     0.38
  7   0.0849      0.00     0.03       0.00    -0.02
  8   0.0874      0.00    -0.42       0.00    -0.13
  9   0.0876      0.00     0.04       0.00    -0.22
 10   0.6686      0.00     0.61       0.00     0.10
 11   0.6687      0.00     0.79       0.00     0.06
 12   0.7451      0.00    -0.13       0.00    -0.18
 13   0.7479      0.00    -0.23       0.00    -0.09
 14   0.7507      0.00    -0.12       0.00    -0.24
 15   0.8791      0.00    -0.07       0.00    -0.26
 16   0.8791      0.00    -0.16       0.00    -0.03
 17   0.8791      0.00     0.33       0.00    -0.17
 18   0.8875      0.00    -0.12       0.00    -0.16
 19   0.8878      0.00    -0.11       0.00     0.03
 20   1.8733      0.00     0.52       0.00    -0.03
 21   1.8735      0.00    -0.06       0.00     0.34
 22   3.8661      0.00    -0.09       0.00     0.07
 23   3.8661      0.00    -0.12       0.00     0.11
 24   3.8662      0.00    -0.14       0.00     0.07
 25   3.8662      0.00    -0.12       0.00     0.12
 26   3.9509      0.00    -0.12       0.00     0.12
 27   3.9510      0.00    -0.09       0.00     0.07
 28   3.9787      0.00    -0.10       0.00    -0.15
 29   3.9787      0.00    -0.03       0.00    -0.03
 30   3.9787      0.00    -0.14       0.00    -0.16
 31   4.0575      0.00     0.10       0.00    -0.10
 32   4.0577      0.00     0.09       0.00     0.17
 33   6.8017      0.00    -0.06       0.00     0.08
 34   6.8018      0.00     0.01       0.00     0.15
 35   6.8020      0.00    -0.08       0.00     0.12
 36   6.8210      0.00    -0.33       0.00    -0.07
 37   6.9548      0.00     0.00       0.00    -0.10
 38   6.9549      0.00     0.03       0.00    -0.09
 39   6.9550      0.00     0.05       0.00    -0.09
 40   6.9603      0.00    -0.11       0.00    -0.12
 41   6.9655      0.00    -0.15       0.00    -0.18
 42   6.9682      0.00     0.06       0.00    -0.11
 43   6.9709      0.00    -0.08       0.00    -0.08
 44   6.9715      0.00    -0.17       0.00    -0.15
 45   6.9742      0.00    -0.04       0.00    -0.09
 46   7.0393      0.00     0.14       0.00    -0.06
 47   7.0559      0.00     0.16       0.00     0.05
 48   7.2090      0.00    -0.03       0.00    -0.10
 49   7.2117      0.00     0.11       0.00     0.05
 50   7.2146      0.00     0.25       0.00     0.00
 51   7.2147      0.00     0.12       0.00     0.01
 52   7.2828      0.00    -0.05       0.00     0.11
 53   7.7711      0.00    -0.01       0.00    -0.00
 54   7.7901      0.00     0.01       0.00     0.02
 55   7.9376      0.00     0.04       0.00    -0.11
 56   7.9460      0.00     0.03       0.00    -0.06
 57   8.1811      0.00     0.21       0.00     0.10
 58   8.2440      0.00    -0.10       0.00    -0.03
 59   8.2740      0.00     0.06       0.00     0.01
 60   8.2741      0.00    -0.06       0.00     0.09
 61   9.0733      0.00    -0.01       0.00     0.15
 62   9.0733      0.00    -0.02       0.00     0.14
 63   9.0733      0.00    -0.04       0.00     0.14

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.

04VT75    quality flag:3

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

axisobj        39.633    39.633    39.633
ecceobj         0.213     0.213     0.213
incobj         12.806    12.806    12.806
qmin           28.294    28.293    28.293
qmax           51.110    51.102    51.092
amean          39.455    39.455    39.455
amin           39.031    39.030    39.030
amax           39.970    39.970    39.971
emean           0.247     0.247     0.247
emin            0.203     0.203     0.203
emax            0.281     0.280     0.281
imean           9.814     9.814     9.814
imin            7.318     7.318     7.323
imax           12.816    12.816    12.816
excite_mean     0.302     0.302     0.302
fracstop        1.000     1.000     1.000
cjmean          2.947     2.947     2.947

libcent 0       181.1     181.0     180.9
libamp  0        68.1      68.2      68.2
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       262.7     262.7     262.7
kozaiamp         55.4      55.4      55.4