Orbit Fit and Astrometric record for 04VN112

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: 04VN112   
# Created Sat Feb  6 02:37:35 2016
# Orbit generated from Bernstein formalism
# Fitting   31 observations of   31
# Arc:  14.00y
# First observation: 2000/09/26
#  Last observation: 2014/09/26
Preliminary a, adot, b, bdot, g, gdot:
  -0.000923   0.026376  -0.002412   0.008826   0.026730   0.000000
# Chi-squared of fit:    36.15 DOF:   56 RMS:  0.19
# Min/Max residuals:    -0.58    0.42
# Exact a, adot, b, bdot, g, gdot:
  1.834064E-05  2.482997E-02  7.083855E-06  8.238340E-03  2.126673E-02 -2.686298E-03
# Covariance matrix:
  4.3292E-13 -6.0198E-14  1.4835E-14 -9.4923E-15  1.6157E-13 -8.0243E-14
 -6.0198E-14  4.4002E-14 -4.7553E-14  1.5075E-14  9.5029E-14  1.1311E-13
  1.4835E-14 -4.7553E-14  2.3518E-13 -4.0065E-14 -1.4676E-13 -1.3701E-13
 -9.4923E-15  1.5075E-14 -4.0065E-14  9.3493E-15  4.1059E-14  4.2832E-14
  1.6157E-13  9.5029E-14 -1.4676E-13  4.1059E-14  5.1144E-13  2.9778E-13
 -8.0243E-14  1.1311E-13 -1.3701E-13  4.2832E-14  2.9778E-13  3.2025E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -18.529012   23.077719    0.336644   -0.298348   -0.889601  2451813.878614
# Heliocentric elements and errors
Epoch:              2451810.5000  =  2000/09/23
Mean Anomaly:          359.51487 +/-     0.001
Argument of Peri:      326.95384 +/-     0.002
Long of Asc Node:       66.12500 +/-     0.000
Inclination:            25.50369 +/-     0.000
Eccentricity:         0.86583292 +/-    0.0002
Semi-Major Axis:    352.68279915 +/-    0.4618
Time of Perihelion: 2455070.5802 +/-       0.5
Perihelion:          47.31842180 +/-    0.0866
Aphelion:           658.04717650 +/-    0.8637
Period (y)             6623.4555 +/-     13.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.01674128 +/-    0.0014
Ecliptic Y           17.53954924 +/-    0.0006
Ecliptic Z          -14.94249035 +/-    0.0005
Ecliptic XDOT        -0.00125207 +/-    0.0000
Ecliptic YDOT         0.00294938 +/-    0.0000
Ecliptic ZDOT         0.00111567 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.91993691 +/-    0.0012
Geocenter to KBO     47.02180797 +/-    0.0016
# Hcoef:  6.30

The following table shows the complete astrometric record for 04VN112. 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 (04VN112) followed by the observatory code and reference code for the source of the astrometry.

2000 09  26.377871 01 52 44.13   -08 15 48.2         04VN112   645  C~1dcI      
2000 09  26.378700 01 52 44.12   -08 15 48.2         04VN112   645  C~1dcI      
2000 09  26.381188 01 52 44.12   -08 15 48.2         04VN112   645  C~1dcI      
2004 11  06.11000  02 08 41.12   -04 33 02.1   22.7R 04VN112   807  Cv6209      
2004 11  06.12572  02 08 41.06   -04 33 02.3   22.2I 04VN112   807  Cv6209      
2004 11  14.12217  02 08 09.66   -04 34 09.7   23.1R 04VN112   807  Cv6209      
2004 11  14.13784  02 08 09.60   -04 34 09.7   22.2I 04VN112   807  Cv6209      
2004 11  20.07277  02 07 47.38   -04 34 38.2   23.2R 04VN112   807  Cv6209      
2004 11  20.08791  02 07 47.33   -04 34 38.3   22.2I 04VN112   807  Cv6209      
2004 12  07.11150  02 06 51.48   -04 34 11.5   22.6R 04VN112   807  Cv6209      
2004 12  07.12746  02 06 51.43   -04 34 11.3   22.4I 04VN112   807  Cv6209      
2004 12  11.09186  02 06 40.59   -04 33 40.9   22.9R 04VN112   807  Cv6209      
2004 12  11.10909  02 06 40.54   -04 33 40.8   22.3I 04VN112   807  Cv6209      
2004 12  15.08650  02 06 30.64   -04 33 01.0   22.8R 04VN112   807  Cv6209      
2004 12  15.11395  02 06 30.58   -04 33 00.8   22.2I 04VN112   807  Cv6209      
2005 12  24.09730  02 10 48.32   -03 32 10.6   22.8R 04VN112   807  Cv6209      
2005 12  24.11337  02 10 48.28   -03 32 10.3   22.4I 04VN112   807  Cv6209      
2005 12  29.08601  02 10 40.03   -03 30 48.5   22.9R 04VN112   807  Cv6209      
2005 12  29.11996  02 10 39.98   -03 30 48.0   22.5I 04VN112   807  Cv6209      
2005 12  31.06909  02 10 37.25   -03 30 12.0   23.0R 04VN112   807  Cv6209      
2007 11  08.29246  02 22 31.91   -01 34 02.1         04VN112   695  Cy4017      
2007 11  08.33091  02 22 31.74   -01 34 02.4         04VN112   695  Cy4017      
2008 10  24.35124  02 28 09.43   -00 30 37.5   23.0r 04VN112   695  C~0gMD      
2008 10  24.45648  02 28 09.03   -00 30 39.4   23.1r 04VN112   695  C~0gMD      
2008 11  03.20374  02 27 29.11   -00 33 01.0   24.2R 04VN112   250  S~06Al      
2008 11  03.20999  02 27 29.09   -00 33 01.1         04VN112   250  S~06Al      
2008 11  03.26971  02 27 28.84   -00 33 01.9         04VN112   250  S~06Al      
2008 11  03.27666  02 27 28.83   -00 33 02.0         04VN112   250  S~06Al      
2014 09  26.35536  02 57 51.19   +05 36 39.5   22.8R 04VN112   695  C~1LJN      
2014 09  26.40091  02 57 51.05   +05 36 38.8         04VN112   695  C~1LJN      
2014 09  26.44569  02 57 50.93   +05 36 38.0         04VN112   695  C~1LJN      

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     0.03       0.00    -0.20
  2   0.0000     -0.14    -0.06       0.05    -0.14
  3   0.0000     -0.14     0.08       0.05    -0.13
  4   4.1115  18279.25     0.03    7088.14     0.09
  5   4.1116  18278.33     0.07    7088.30     0.03
  6   4.1335  17814.42    -0.13    7202.69     0.02
  7   4.1335  17813.58    -0.07    7203.03     0.10
  8   4.1497  17492.70    -0.05    7301.78     0.16
  9   4.1498  17491.96     0.02    7301.97     0.08
 10   4.1964  16723.13    -0.08    7641.58     0.11
 11   4.1964  16722.51    -0.09    7642.04     0.22
 12   4.2073  16582.90     0.03    7731.38     0.28
 13   4.2073  16582.24    -0.04    7731.76     0.25
 14   4.2182  16459.31     0.00    7824.55     0.29
 15   4.2183  16458.55     0.05    7825.07     0.15
 16   5.2422  21456.24     0.15    9775.19    -0.01
 17   5.2423  21455.79     0.04    9775.70     0.09
 18   5.2559  21371.58     0.10    9898.78    -0.02
 19   5.2560  21371.07     0.09    9899.53    -0.14
 20   5.2613  21346.63     0.02    9948.60     0.04
 21   7.1154  34155.89    -0.46   12417.70    -0.45
 22   7.1155  34153.35    -0.58   12418.39    -0.27
 23   8.0766  40507.76    -0.21   14078.53     0.30
 24   8.0769  40501.23     0.19   14079.03    -0.09
 25   8.1036  39869.82     0.16   14174.24    -0.21
 26   8.1036  39869.49     0.24   14174.26    -0.26
 27   8.1037  39865.58     0.16   14174.93    -0.27
 28   8.1038  39865.39     0.42   14174.90    -0.38
 29  13.9986  76575.08     0.03   25315.65     0.12
 30  13.9987  76572.56    -0.11   25315.74     0.20
 31  13.9988  76570.32    -0.02   25315.62     0.06

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.

04VN112    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       356.285   357.700   354.882
ecceobj         0.867     0.868     0.867
incobj         25.508    25.508    25.508
qmin           44.262    44.113    44.278
qmax          665.241   668.064   662.440
amean         327.870   328.312   326.127
amin          313.150   313.336   311.646
amax          356.285   357.699   354.882
emean           0.855     0.856     0.854
emin            0.845     0.846     0.844
emax            0.867     0.868     0.867
imean          24.544    24.247    24.505
imin           23.709    23.403    23.735
imax           25.491    25.082    25.345
excite_mean     0.951     0.949     0.950
fracstop        1.000     1.000     1.000
cjmean          3.204     3.205     3.204

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       334.4     328.8     333.7
kozaiamp          8.4       2.8       7.3