Orbit Fit and Astrometric record for 444030

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: 444030    
# Created Mon Oct 23 01:36:47 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   37 observations of   37
# Arc:  33.99y
# First observation: 1982/08/10
#  Last observation: 2016/08/06
# Chi-squared of fit:   220.62 DOF:   68 RMS:  0.43
# Min/Max residuals:    -1.55    1.17
# Exact a, adot, b, bdot, g, gdot:
  1.464133E-05  2.724738E-02  7.220905E-06  1.391871E-02  2.757618E-02 -7.570439E-04
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   17.178266  -90.201977   -0.759389    0.198725   -0.641886  2445191.966516
# Heliocentric elements and errors
Epoch:              2445192.5000  =  1982/08/11
Mean Anomaly:          357.84883 +/-     0.000
Argument of Peri:       37.07160 +/-     0.000
Long of Asc Node:      240.94326 +/-     0.000
Inclination:            31.16853 +/-     0.000
Eccentricity:         0.15528655 +/-    0.0000
Semi-Major Axis:     43.69922537 +/-    0.0000
Time of Perihelion: 2445822.9951 +/-       0.0
Perihelion:          36.91332353 +/-    0.0000
Aphelion:            50.48512721 +/-    0.0000
Period (y)              288.8809 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            0.62868021 +/-    0.0000
Ecliptic Y          -35.32677829 +/-    0.0000
Ecliptic Z           10.71039429 +/-    0.0000
Ecliptic XDOT         0.00271262 +/-    0.0000
Ecliptic YDOT         0.00046402 +/-    0.0000
Ecliptic ZDOT         0.00129796 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.92004032 +/-    0.0000
Geocenter to KBO     36.26323483 +/-    0.0000
# Hcoef:  4.83

The following table shows the complete astrometric record for 444030. 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 (444030) followed by the observatory code and reference code for the source of the astrometry.

1982 08  10.46590  17 59 13.41   -06 15 39.2         444030    260   ~08To      
1984 08  01.48248  18 12 20.69   -04 37 38.9         444030    260   ~08To      
1987 07  31.53639  18 31 17.03   -02 10 37.5         444030    260   ~08To      
1988 05  22.41875  18 43 19.84   -01 27 03.1         444030    261   ~08To      
1990 08  19.19271  18 48 39.00   +00 10 35.9         444030    261   ~08To      
1995 08  16.19132  19 19 46.75   +04 15 27.2         444030    261   ~08To      
2004 07  13.23447  20 18 14.40   +11 23 28.3   20.0R 444030    644  Cv4433      
2004 07  13.31098  20 18 13.99   +11 23 28.7   20.2R 444030    644  Cv4433      
2004 07  13.37774  20 18 13.64   +11 23 28.7   21.0R 444030    644  Cv4433      
2005 07  03.28159  20 25 15.99   +12 06 21.3   20.9R 444030    644  Cv4433      
2005 07  03.34472  20 25 15.69   +12 06 21.8   20.9R 444030    644  Cv4433      
2005 07  03.40946  20 25 15.37   +12 06 22.3   20.7R 444030    644  Cv4433      
2005 07  04.33496  20 25 10.99   +12 06 30.0   20.5R 444030    644  Cv4433      
2005 07  04.40817  20 25 10.63   +12 06 30.6   21.2R 444030    644  Cv4433      
2005 07  04.47083  20 25 10.33   +12 06 30.9   20.9R 444030    644  Cv4433      
2005 07  29.37692  20 23 02.87   +12 05 00.3         444030    644  Cv4433      
2005 07  30.29105  20 22 58.05   +12 04 45.2         444030    644  Cv4433      
2006 09  14.15108  20 25 44.36   +12 24 32.7         444030    644  Cv4433      
2006 09  15.12120  20 25 41.31   +12 23 51.2         444030    644  Cv4433      
2006 09  16.31170  20 25 37.62   +12 22 59.6         444030    644  Cv4433      
2008 06  26.59851  20 44 18.59   +14 10 43.7   20.0R 444030    F65  Cz2031      
2008 06  26.60053  20 44 18.56   +14 10 43.5   19.8R 444030    F65  Cz2031      
2008 09  08.84737  20 38 23.15   +13 52 15.6   20.5V 444030    A74  Cz5835      
2008 09  08.85911  20 38 23.06   +13 52 15.1   20.3V 444030    A74  Cz5835      
2008 09  08.86935  20 38 22.98   +13 52 14.4   19.9V 444030    A74  Cz5835      
2010 07  07.95559  20 55 56.13   +15 33 19.0   20.3V 444030    A74  C~0K72      
2010 07  07.97696  20 55 56.05   +15 33 18.8   20.3V 444030    A74  C~0K72      
2010 07  07.99834  20 55 55.95   +15 33 18.8   20.3V 444030    A74  C~0K72      
2015 07  09.94738  21 26 50.65   +18 39 13.5   20.6V 444030    A13  C~1UFS      
2015 07  09.97158  21 26 50.55   +18 39 14.0   20.7V 444030    A13  C~1UFS      
2015 09  16.54161  21 21 22.43   +18 18 18.3   20.9R 444030    D29  C~1XPw      
2015 09  16.55882  21 21 22.37   +18 18 17.8   21.1R 444030    D29  C~1XPw      
2015 09  16.57603  21 21 22.27   +18 18 17.4   20.9R 444030    D29  C~1XPw      
2016 08  06.28811  21 30 51.43   +19 13 25.0   20.2R 444030    G80  C~1wyQ      
2016 08  06.31085  21 30 51.31   +19 13 24.5   20.3R 444030    G80  C~1wyQ      
2016 08  06.33091  21 30 51.22   +19 13 24.6   20.4R 444030    G80  C~1wyQ      
2016 08  06.36029  21 30 51.07   +19 13 23.9   20.3R 444030    G80  C~1wyQ      

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    -0.22       0.00    -0.55
  2   1.9768      0.00    -0.14       0.00    -0.45
  3   4.9721      0.00    -0.02       0.00    -0.08
  4   5.7822      0.00     0.38       0.00     0.18
  5   8.0239      0.00    -0.16       0.00    -0.21
  6  13.0150      0.00     0.29       0.00     0.29
  7  21.9241      0.00    -0.40       0.00    -0.66
  8  21.9243      0.00    -0.57       0.00    -0.16
  9  21.9245      0.00    -0.59       0.00    -0.07
 10  22.8961      0.00     0.07       0.00     0.27
 11  22.8963      0.00     0.14       0.00     0.23
 12  22.8965      0.00     0.04       0.00     0.19
 13  22.8990      0.00     0.51       0.00     0.54
 14  22.8992      0.00     0.47       0.00     0.59
 15  22.8994      0.00     0.55       0.00     0.43
 16  22.9676      0.00     0.15       0.00     0.09
 17  22.9701      0.00    -0.33       0.00    -1.55
 18  24.0950      0.00     0.03       0.00    -0.48
 19  24.0976      0.00     0.30       0.00    -0.48
 20  24.1009      0.00     0.12       0.00    -0.75
 21  25.8785      0.00     0.18       0.00     0.12
 22  25.8785      0.00    -0.14       0.00    -0.11
 23  26.0818      0.00     0.44       0.00     1.17
 24  26.0818      0.00    -0.24       0.00     1.15
 25  26.0819      0.00    -0.85       0.00     0.87
 26  27.9083      0.00     0.08       0.00     0.46
 27  27.9083      0.00     0.35       0.00     0.07
 28  27.9084      0.00     0.33       0.00    -0.13
 29  32.9130      0.00     0.01       0.00    -0.45
 30  32.9131      0.00     0.04       0.00    -0.25
 31  33.1008      0.00     0.05       0.00    -0.27
 32  33.1009      0.00     0.20       0.00    -0.02
 33  33.1009      0.00    -0.25       0.00     0.33
 34  33.9899      0.00     0.06       0.00    -0.14
 35  33.9900      0.00     0.03       0.00    -0.34
 36  33.9900      0.00     0.24       0.00     0.02
 37  33.9901      0.00     0.27       0.00    -0.29

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.

444030    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.510    43.510    43.510
ecceobj         0.151     0.151     0.151
incobj         31.263    31.263    31.263
qmin           35.727    35.757    35.757
qmax           51.606    51.608    51.610
amean          43.508    43.508    43.508
amin           43.158    43.159    43.157
amax           43.901    43.915    43.905
emean           0.158     0.158     0.158
emin            0.139     0.139     0.139
emax            0.176     0.176     0.176
imean          32.327    32.327    32.328
imin           31.924    31.936    31.935
imax           32.698    32.701    32.700
excite_mean     0.558     0.558     0.558
fracstop        1.000     1.000     1.000
cjmean          2.697     2.697     2.697

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       170.3     170.3     170.3
kozaiamp        179.9     180.0     180.0