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 Aug 30 01:38:04 2014
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   25
# Arc:   3.99y
# First observation: 2004/11/06
#  Last observation: 2008/11/03
Preliminary a, adot, b, bdot, g, gdot:
   0.000081   0.025207  -0.000099   0.009173   0.021872   0.000000
# Chi-squared of fit:    14.27 DOF:   42 RMS:  0.14
# Min/Max residuals:    -0.44    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.773587E-05  2.502334E-02  7.209273E-06  9.081582E-03  2.146954E-02 -1.750878E-03
# Covariance matrix:
  3.0270E-13  1.0273E-14 -5.2028E-14  4.4494E-14  5.4645E-13  9.8078E-13
  1.0273E-14  4.8299E-13 -7.6292E-14  1.8736E-13  4.5719E-13  4.9993E-12
 -5.2028E-14 -7.6292E-14  1.2929E-13 -7.0222E-14 -1.9336E-13 -9.5024E-13
  4.4494E-14  1.8736E-13 -7.0222E-14  1.0427E-13  2.5702E-13  2.1123E-12
  5.4645E-13  4.5719E-13 -1.9336E-13  2.5702E-13  1.7726E-12  6.3181E-12
  9.8078E-13  4.9993E-12 -9.5024E-13  2.1123E-12  6.3181E-12  5.5815E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.494434   28.356917   -0.264030   -0.271887   -0.918669  2453315.610743
# Heliocentric elements and errors
Epoch:              2453310.5000  =  2004/11/01
Mean Anomaly:          359.68726 +/-     0.002
Argument of Peri:      327.25690 +/-     0.034
Long of Asc Node:       66.00607 +/-     0.001
Inclination:            25.55927 +/-     0.000
Eccentricity:         0.85218921 +/-    0.0003
Semi-Major Axis:    320.07201257 +/-    0.7423
Time of Perihelion: 2455127.4563 +/-       8.3
Perihelion:          47.31009818 +/-    0.1538
Aphelion:           592.83392696 +/-    1.3791
Period (y)             5726.3746 +/-     19.92
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.01493055 +/-    0.0024
Ecliptic Y           21.90108795 +/-    0.0013
Ecliptic Z          -13.22413275 +/-    0.0008
Ecliptic XDOT        -0.00141587 +/-    0.0000
Ecliptic YDOT         0.00285545 +/-    0.0000
Ecliptic ZDOT         0.00117393 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.49452608 +/-    0.0022
Geocenter to KBO     46.57762001 +/-    0.0029
# 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.

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      

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     0.14       0.00    -0.11
  2   0.0000     -0.91     0.18       0.13    -0.16
  3   0.0219   -464.20    -0.06     101.85    -0.17
  4   0.0220   -465.04    -0.01     102.16    -0.08
  5   0.0382   -786.15    -0.02     192.07    -0.02
  6   0.0383   -786.89     0.05     192.23    -0.10
  7   0.0849  -1559.56    -0.14     510.21    -0.04
  8   0.0849  -1560.19    -0.15     510.66     0.07
  9   0.0958  -1701.34    -0.05     595.96     0.14
 10   0.0958  -1702.01    -0.12     596.31     0.11
 11   0.1067  -1826.71    -0.09     685.47     0.16
 12   0.1068  -1827.48    -0.04     685.98     0.03
 13   1.1307   3065.60     0.21    2749.97     0.06
 14   1.1307   3065.15     0.10    2750.46     0.16
 15   1.1444   2978.28     0.15    2870.50     0.06
 16   1.1444   2977.76     0.14    2871.23    -0.05
 17   1.1498   2952.15     0.06    2919.32     0.12
 18   3.0039  15465.07    -0.32    5669.84    -0.23
 19   3.0040  15462.57    -0.44    5670.46    -0.05
 20   3.9651  21602.04 (  -0.33)   7450.93 (   0.54)
 21   3.9654  21595.68     0.06    7451.28     0.17
 22   3.9920  20978.86     0.00    7530.60     0.05
 23   3.9921  20978.54     0.08    7530.61     0.00
 24   3.9922  20974.71     0.00    7531.19     0.00
 25   3.9922  20974.53     0.25    7531.15    -0.11

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       357.535   357.529   357.541
ecceobj         0.868     0.868     0.868
incobj         25.507    25.507    25.507
qmin           44.023    44.016    44.015
qmax          667.739   667.728   667.750
amean         328.311   328.310   328.312
amin          312.120   312.122   312.339
amax          357.535   357.529   357.541
emean           0.856     0.856     0.856
emin            0.846     0.846     0.846
emax            0.868     0.868     0.868
imean          24.237    24.236    24.237
imin           23.384    23.382    23.383
imax           25.081    25.081    25.081
excite_mean     0.949     0.949     0.949
fracstop        1.000     1.000     1.000
cjmean          3.205     3.205     3.205

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       328.1     328.1     328.1
kozaiamp          2.3       2.2       2.2