Orbit Fit and Astrometric record for 04MV8

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: 04MV8     
# Created Fri Dec  3 02:10:02 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     18 observations of     18
# Arc:  17.13y
# First observation: 2004/06/24
#  Last observation: 2021/08/09
# Chi-squared of fit:    29.52 DOF:     30 RMS:  0.23
# Min/Max residuals:    -0.63    0.42
# Exact a, adot, b, bdot, g, gdot:
  1.586264E-05  2.541785E-02 -7.538057E-06 -1.305125E-02  2.623888E-02 -5.962519E-04
# Covariance matrix:
  2.6334E-13 -8.8504E-14 -5.5413E-14  4.4160E-14  1.2467E-13 -1.7334E-13
 -8.8504E-14  6.2701E-14  4.0479E-14 -3.2748E-14 -1.0847E-14  1.2843E-13
 -5.5413E-14  4.0479E-14  1.4835E-13 -3.0997E-14 -1.4450E-14  8.5922E-14
  4.4160E-14 -3.2748E-14 -3.0997E-14  1.9640E-14  9.7597E-15 -6.9416E-14
  1.2467E-13 -1.0847E-14 -1.4450E-14  9.7597E-15  3.2042E-13 -3.8713E-14
 -1.7334E-13  1.2843E-13  8.5922E-14 -6.9416E-14 -3.8713E-14  2.7225E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.914133  -67.534473    0.331944   -0.015313   -0.962656  2453180.973853
# Heliocentric elements and errors
Epoch:              2453180.5000  =  2004/06/24
Mean Anomaly:          352.70843 +/-     0.007
Argument of Peri:      192.42171 +/-     0.009
Long of Asc Node:      110.24229 +/-     0.000
Inclination:            27.24416 +/-     0.000
Eccentricity:         0.17264161 +/-    0.0001
Semi-Major Axis:     47.10967467 +/-    0.0055
Time of Perihelion: 2455572.6152 +/-      20.5
Perihelion:          38.97658438 +/-    0.0059
Aphelion:            55.24276496 +/-    0.0075
Period (y)              323.3504 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           14.61925684 +/-    0.0003
Ecliptic Y          -36.22928099 +/-    0.0008
Ecliptic Z           -0.60827736 +/-    0.0000
Ecliptic XDOT         0.00241647 +/-    0.0000
Ecliptic YDOT         0.00108405 +/-    0.0000
Ecliptic ZDOT        -0.00136053 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.07243071 +/-    0.0007
Geocenter to KBO     38.11141987 +/-    0.0008
# Hcoef:  6.73

The following table shows the complete astrometric record for 04MV8. 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 (04MV8) followed by the observatory code and reference code for the source of the astrometry.

2004 06  24.47311  19 37 41.46   -22 28 07.7         04MV8     568  C~0VDq      
2004 06  25.46944  19 37 36.42   -22 28 27.5   23.1g 04MV8     568  C~0VDq      
2004 06  25.49238  19 37 36.31   -22 28 28.0   22.8g 04MV8     568  C~0VDr      
2004 06  25.51090  19 37 36.22   -22 28 28.2   22.8g 04MV8     568  C~0VDr      
2004 09  10.30140  19 31 41.76   -22 50 33.3         04MV8     568  C~0VDr      
2004 09  10.34216  19 31 41.65   -22 50 34.0         04MV8     568  C~0VDr      
2006 07  03.42719  19 50 34.95   -23 28 52.4   23.1r 04MV8     568  C~0VDr      
2006 07  03.45471  19 50 34.80   -23 28 53.1   23.0r 04MV8     568  C~0VDr      
2006 07  03.47599  19 50 34.69   -23 28 53.6   22.9r 04MV8     568  C~0VDr      
2006 07  04.43001  19 50 29.66   -23 29 14.6         04MV8     568  C~0VDr      
2006 07  04.43234  19 50 29.67   -23 29 14.5         04MV8     568  C~0VDr      
2006 10  23.08754  19 44 47.06   -23 52 59.0         04MV8     675  C~0VDr      
2006 10  23.13303  19 44 47.20   -23 52 58.5         04MV8     675  C~0VDr      
2008 06  07.30368  20 06 21.39   -24 12 17.1         04MV8     807  C~0VDr      
2008 06  07.37834  20 06 21.09   -24 12 18.9         04MV8     807  C~0VDr      
2021 08  09.40864  21 35 10.784  -28 24 34.21  22.5w 04MV8     F51  C~4xMy      
2021 08  09.42035  21 35 10.713  -28 24 34.69  22.4w 04MV8     F51  C~4xMy      
2021 08  09.44371  21 35 10.584  -28 24 35.54  22.6w 04MV8     F51  C~4xMy      

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    -0.11       0.00    -0.09
     2   0.0027      0.00    -0.18       0.00    -0.33
     3   0.0028      0.00    -0.05       0.00    -0.37
     4   0.0028      0.00     0.03       0.00    -0.21
     5   0.2131      0.00     0.23       0.00     0.42
     6   0.2132      0.00     0.12       0.00     0.17
     7   2.0231      0.00     0.21       0.00     0.24
     8   2.0232      0.00     0.16       0.00     0.15
     9   2.0233      0.00     0.21       0.00     0.11
    10   2.0259      0.00    -0.42       0.00     0.05
    11   2.0259      0.00    -0.08       0.00     0.20
    12   2.3289      0.00    -0.63       0.00    -0.34
    13   2.3290      0.00     0.30       0.00     0.09
    14   3.9530      0.00     0.27       0.00     0.04
    15   3.9532      0.00    -0.05       0.00    -0.09
    16  17.1251      0.00     0.06       0.00     0.09
    17  17.1251      0.00    -0.05       0.00    -0.02
    18  17.1252      0.00    -0.07       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.

04MV8    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.198    47.198    47.198
ecceobj         0.175     0.175     0.175
incobj         27.226    27.226    27.226
qmin           37.818    37.816    37.785
qmax           57.224    57.200    57.125
amean          47.262    47.262    47.263
amin           46.847    46.847    46.852
amax           47.771    47.777    47.738
emean           0.181     0.181     0.181
emin            0.165     0.165     0.165
emax            0.199     0.198     0.198
imean          25.422    25.423    25.423
imin           25.007    25.006    25.004
imax           25.834    25.834    25.836
excite_mean     0.466     0.466     0.466
fracstop        1.000     1.000     1.000
cjmean          2.863     2.863     2.863

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       194.5     194.4     194.4
kozaiamp        179.9     179.9     180.0