Orbit Fit and Astrometric record for 182934

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: 182934    
# Created Mon Dec 11 02:36:42 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   46 observations of   46
# Arc:   8.98y
# First observation: 2002/04/08
#  Last observation: 2011/03/31
# Chi-squared of fit:   206.29 DOF:   86 RMS:  0.37
# Min/Max residuals:    -0.58    1.12
# Exact a, adot, b, bdot, g, gdot:
  1.415477E-05  2.285050E-02  3.012493E-06  4.179034E-03  2.391390E-02  2.600053E-03
# 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
   -5.510858 -142.046943    0.334038   -0.090955   -0.942147  2452372.772943
# Heliocentric elements and errors
Epoch:              2452372.5000  =  2002/04/08
Mean Anomaly:           66.95838 +/-     0.000
Argument of Peri:      252.95624 +/-     0.000
Long of Asc Node:      244.75062 +/-     0.000
Inclination:            11.64139 +/-     0.000
Eccentricity:         0.11156401 +/-    0.0000
Semi-Major Axis:     44.19165233 +/-    0.0000
Time of Perihelion: 2432414.7676 +/-       0.0
Perihelion:          39.26145423 +/-    0.0000
Aphelion:            49.12185042 +/-    0.0000
Period (y)              293.7775 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -33.77140545 +/-    0.0000
Ecliptic Y          -25.91275061 +/-    0.0000
Ecliptic Z           -4.01571985 +/-    0.0000
Ecliptic XDOT         0.00133072 +/-    0.0000
Ecliptic YDOT        -0.00227471 +/-    0.0000
Ecliptic ZDOT         0.00044787 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.75626971 +/-    0.0000
Geocenter to KBO     41.81665614 +/-    0.0000
# Hcoef:  5.54

The following table shows the complete astrometric record for 182934. 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 (182934) followed by the observatory code and reference code for the source of the astrometry.

2002 04  08.27220  14 14 48.17   -19 22 01.3   20.5R 182934    807  Cf5154      
2002 04  09.22168  14 14 43.93   -19 21 40.5         182934    807  Cf5154      
2002 04  09.28520  14 14 43.65   -19 21 39.1         182934    807  Cf5154      
2002 04  09.39874  14 14 43.12   -19 21 36.7         182934    807  Cf5154      
2002 06  05.34888  14 10 34.59   -18 57 13.6         182934    568  Cf8972      
2002 06  05.35112  14 10 34.59   -18 57 13.3         182934    568  Cf8972      
2002 06  05.35467  14 10 34.57   -18 57 13.4         182934    568  Cf8972      
2002 06  05.36108  14 10 34.54   -18 57 13.3         182934    568  Cf8972      
2002 06  05.37474  14 10 34.52   -18 57 12.9         182934    568  Cf8972      
2002 06  05.37698  14 10 34.51   -18 57 12.7         182934    568  Cf8972      
2002 06  05.38055  14 10 34.49   -18 57 12.9         182934    568  Cf8972      
2002 06  05.38425  14 10 34.46   -18 57 12.6         182934    568  Cf8972      
2002 06  05.38695  14 10 34.46   -18 57 12.6         182934    568  Cf8972      
2002 06  11.20973  14 10 15.85   -18 54 52.1   21.8R 182934    688  Cf7381      
2002 06  11.28391  14 10 15.60   -18 54 50.8         182934    688  Cf7381      
2002 06  12.19230  14 10 12.92   -18 54 29.7   22.0R 182934    688  Cf7381      
2002 06  12.27262  14 10 12.72   -18 54 28.0         182934    688  Cf7381      
2003 04  10.23803  14 20 14.25   -19 33 35.2         182934    809  Ci0084      
2003 04  10.33662  14 20 13.82   -19 33 33.0         182934    809  Ci0084      
2003 04  11.34105  14 20 09.33   -19 33 11.5         182934    809  Ci0084      
2003 04  11.38971  14 20 09.11   -19 33 10.5         182934    809  Ci0084      
2003 05  31.35876  14 16 25.71   -19 12 04.9   21.0R 182934    568  Ci1475      
2003 05  31.40711  14 16 25.51   -19 12 03.4         182934    568  Ci1475      
2003 06  01.35724  14 16 21.99   -19 11 39.5         182934    568  Ci1475      
2003 06  02.06526  14 16 19.31   -19 11 21.4         182934    309  Ci2679      
2003 06  02.09729  14 16 19.19   -19 11 20.6         182934    309  Ci2679      
2003 06  02.26661  14 16 18.56   -19 11 16.3         182934    309  Ci2679      
2003 06  02.29761  14 16 18.45   -19 11 15.6         182934    309  Ci2679      
2003 06  02.97762  14 16 15.99   -19 10 58.7         182934    309  Ci2679      
2003 06  03.05008  14 16 15.72   -19 10 56.8         182934    309  Ci2679      
2003 06  03.09641  14 16 15.54   -19 10 55.7         182934    309  Ci2679      
2004 05  20.20299  14 22 40.61   -19 28 31.4   21.4R 182934    688  Ck8098      
2004 05  20.28177  14 22 40.28   -19 28 28.8         182934    688  Ck8098      
2006 04  24.97074  14 35 44.61   -20 00 52.9   21.8R 182934    250  S~06I2      
2006 04  24.97513  14 35 44.58   -20 00 52.8         182934    250  S~06I2      
2006 04  24.97953  14 35 44.56   -20 00 52.7         182934    250  S~06I2      
2006 04  24.98393  14 35 44.54   -20 00 52.6         182934    250  S~06I2      
2008 03  03.45017  14 49 48.47   -20 31 52.2         182934    695  Cy7588      
2008 03  03.52728  14 49 48.37   -20 31 51.9         182934    695  Cy7588      
2008 03  04.40989  14 49 46.79   -20 31 47.5         182934    695  Cy7588      
2011 03  31.18365  15 04 52.17   -20 49 27.2   22.3R 182934    304  C~0Vyh      
2011 03  31.18792  15 04 52.15   -20 49 27.2         182934    304  C~0Vyh      
2011 03  31.27159  15 04 51.85   -20 49 26.1         182934    304  C~0Vyh      
2011 03  31.27586  15 04 51.83   -20 49 26.0         182934    304  C~0Vyh      
2011 03  31.33770  15 04 51.62   -20 49 25.2         182934    304  C~0Vyh      
2011 03  31.34197  15 04 51.60   -20 49 25.0         182934    304  C~0Vyh      

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    -0.15       0.00     0.56
  2   0.0026      0.00    -0.02       0.00     0.03
  3   0.0028      0.00     0.12       0.00     0.04
  4   0.0031      0.00    -0.11       0.00    -0.07
  5   0.1590      0.00     0.12       0.00    -0.09
  6   0.1590      0.00     0.23       0.00     0.16
  7   0.1590      0.00     0.12       0.00    -0.03
  8   0.1590      0.00     0.00       0.00    -0.09
  9   0.1591      0.00     0.41       0.00    -0.03
 10   0.1591      0.00     0.38       0.00     0.11
 11   0.1591      0.00     0.27       0.00    -0.17
 12   0.1591      0.00     0.01       0.00     0.03
 13   0.1591      0.00     0.15       0.00    -0.03
 14   0.1751      0.00     0.28       0.00     0.20
 15   0.1753      0.00    -0.05       0.00    -0.25
 16   0.1777      0.00     0.10       0.00    -0.30
 17   0.1780      0.00     0.72       0.00    -0.47
 18   1.0047      0.00    -0.15       0.00    -0.14
 19   1.0050      0.00     0.10       0.00    -0.06
 20   1.0077      0.00     0.04       0.00    -0.26
 21   1.0079      0.00     0.06       0.00    -0.34
 22   1.1447      0.00     0.07       0.00    -0.34
 23   1.1448      0.00    -0.13       0.00    -0.07
 24   1.1474      0.00     0.40       0.00    -0.16
 25   1.1493      0.00    -0.56       0.00    -0.01
 26   1.1494      0.00    -0.55       0.00    -0.01
 27   1.1499      0.00    -0.49       0.00     0.01
 28   1.1500      0.00    -0.42       0.00    -0.07
 29   1.1518      0.00    -0.43       0.00    -0.13
 30   1.1520      0.00    -0.46       0.00    -0.03
 31   1.1522      0.00    -0.58       0.00    -0.08
 32   2.1162      0.00    -0.32       0.00    -0.48
 33   2.1164      0.00    -0.08       0.00     0.08
 34   4.0457      0.00     0.81       0.00     1.12
 35   4.0457      0.00     0.67       0.00     1.12
 36   4.0457      0.00     0.68       0.00     1.12
 37   4.0458      0.00     0.69       0.00     1.12
 38   5.9033      0.00    -0.52       0.00    -0.29
 39   5.9035      0.00     0.06       0.00    -0.33
 40   5.9059      0.00    -0.43       0.00    -0.04
 41   8.9772      0.00     0.09       0.00    -0.23
 42   8.9772      0.00     0.02       0.00    -0.29
 43   8.9774      0.00    -0.01       0.00    -0.29
 44   8.9774      0.00    -0.09       0.00    -0.25
 45   8.9776      0.00     0.08       0.00    -0.27
 46   8.9776      0.00     0.01       0.00    -0.13

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.

182934    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.974    43.974    43.974
ecceobj         0.108     0.108     0.108
incobj         11.643    11.643    11.643
qmin           38.754    38.723    38.768
qmax           50.157    50.199    50.143
amean          44.303    44.305    44.319
amin           43.941    43.935    43.944
amax           44.688    44.704    44.708
emean           0.108     0.109     0.108
emin            0.095     0.097     0.095
emax            0.123     0.123     0.122
imean          13.162    13.146    13.187
imin           12.597    12.593    12.629
imax           13.675    13.650    13.695
excite_mean     0.252     0.252     0.252
fracstop        1.000     1.000     1.000
cjmean          3.027     3.027     3.027

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       178.3     178.3     178.2
kozaiamp        180.0     180.0     180.0