Orbit Fit and Astrometric record for 471210

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: 471210    
# Created Fri Dec 15 02:36:49 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   50 observations of   50
# Arc:   5.09y
# First observation: 2010/11/03
#  Last observation: 2015/12/06
# Chi-squared of fit:    65.63 DOF:   94 RMS:  0.20
# Min/Max residuals:    -0.71    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.594657E-05  3.231758E-02 -4.244261E-06 -5.482359E-03  2.795486E-02 -8.899219E-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
  -26.881581   47.057082    0.111725   -0.444598   -0.877090  2455503.564136
# Heliocentric elements and errors
Epoch:              2455504.5000  =  2010/11/04
Mean Anomaly:          355.66165 +/-     0.000
Argument of Peri:      259.24883 +/-     0.000
Long of Asc Node:      157.92923 +/-     0.000
Inclination:            27.78842 +/-     0.000
Eccentricity:         0.28225747 +/-    0.0000
Semi-Major Axis:     50.95677785 +/-    0.0000
Time of Perihelion: 2457105.6171 +/-       0.0
Perihelion:          36.57384653 +/-    0.0000
Aphelion:            65.33970916 +/-    0.0000
Period (y)              363.7568 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.49239370 +/-    0.0000
Ecliptic Y           23.99961291 +/-    0.0000
Ecliptic Z          -16.17438572 +/-    0.0000
Ecliptic XDOT        -0.00253551 +/-    0.0000
Ecliptic YDOT         0.00192802 +/-    0.0000
Ecliptic ZDOT        -0.00043951 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.65380540 +/-    0.0000
Geocenter to KBO     35.77199005 +/-    0.0000
# Hcoef:  5.60

The following table shows the complete astrometric record for 471210. 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 (471210) followed by the observatory code and reference code for the source of the astrometry.

2010 11  03.06337  03 28 09.822  -08 55 24.78  20.8R 471210    809  C~0Osr      
2010 11  03.19562  03 28 09.140  -08 55 28.92  20.8R 471210    809  C~0Osr      
2010 11  03.28023  03 28 08.695  -08 55 31.36  20.9R 471210    809  C~0Osr      
2010 11  05.05926  03 27 59.499  -08 56 22.70  20.8R 471210    809  C~0Osr      
2010 11  05.18443  03 27 58.855  -08 56 26.34  20.8R 471210    809  C~0Osr      
2010 11  05.26947  03 27 58.419  -08 56 28.75  20.8R 471210    809  C~0Osr      
2011 01  06.04249  03 23 14.44   -08 58 39.4         471210    809  C~0evF      
2011 01  06.15036  03 23 14.12   -08 58 36.8         471210    809  C~0evF      
2011 10  18.48758  03 36 59.453  -08 33 28.03  20.7i 471210    F51  C~1vWI      
2011 10  18.50097  03 36 59.389  -08 33 28.47  20.7i 471210    F51  C~1vWI      
2011 10  18.54198  03 36 59.211  -08 33 30.11  20.7i 471210    F51  C~1vWI      
2011 10  18.55538  03 36 59.156  -08 33 30.57  20.7i 471210    F51  C~1vWI      
2011 10  27.20993  03 36 19.417  -08 38 50.65  20.7R 471210    809  C~0evF      
2011 10  27.26461  03 36 19.154  -08 38 52.60  20.8R 471210    809  C~0evF      
2012 10  11.423817 03 44 58.47   -08 15 51.1   20.6R 471210    G89  C~0jbV      
2012 10  11.435221 03 44 58.43   -08 15 51.5   20.7R 471210    G89  C~0jbV      
2012 10  11.446625 03 44 58.38   -08 15 52.0   21.0R 471210    G89  C~0jbV      
2012 10  16.408576 03 44 38.58   -08 19 16.8   20.9R 471210    G89  C~0jbV      
2012 10  16.420006 03 44 38.53   -08 19 17.3   20.8R 471210    G89  C~0jbV      
2012 10  16.430674 03 44 38.48   -08 19 17.7   20.8R 471210    G89  C~0jbV      
2012 12  14.56542  03 39 41.09   -08 39 00.5   20.0R 471210    E10  C~0mqr      
2012 12  14.59865  03 39 40.92   -08 39 00.3   19.8R 471210    E10  C~0mqr      
2014 09  20.57781  04 00 58.610  -07 31 49.84  21.1w 471210    F51  C~1vWI      
2014 09  20.58980  04 00 58.592  -07 31 50.39  21.1w 471210    F51  C~1vWI      
2014 09  20.60183  04 00 58.573  -07 31 50.94  21.1w 471210    F51  C~1vWI      
2014 09  20.61381  04 00 58.549  -07 31 51.49  21.1w 471210    F51  C~1vWI      
2014 10  07.45850  04 00 17.850  -07 44 39.36  20.5i 471210    F51  C~1vWI      
2014 10  07.47177  04 00 17.813  -07 44 40.26  20.8i 471210    F51  C~1vWI      
2014 10  07.48399  04 00 17.781  -07 44 40.71  20.8i 471210    F51  C~1vWI      
2014 10  07.49615  04 00 17.749  -07 44 41.15  20.8i 471210    F51  C~1vWI      
2014 10  30.52927  03 58 44.345  -07 59 43.06  21.3w 471210    F51  C~1vWI      
2014 10  30.54055  03 58 44.303  -07 59 43.38  21.1w 471210    F51  C~1vWI      
2014 10  30.55180  03 58 44.245  -07 59 43.93  21.2w 471210    F51  C~1vWI      
2014 10  30.56304  03 58 44.184  -07 59 43.95  21.3w 471210    F51  C~1vWI      
2014 11  10.47290  03 57 49.521  -08 05 07.11  20.4i 471210    F51  C~1vWI      
2014 11  10.48575  03 57 49.452  -08 05 07.33  20.8i 471210    F51  C~1vWI      
2014 11  10.49853  03 57 49.378  -08 05 07.83  20.5i 471210    F51  C~1vWI      
2014 11  10.51139  03 57 49.323  -08 05 08.09  20.7i 471210    F51  C~1vWI      
2014 12  14.37191  03 54 50.692  -08 11 49.91  21.1w 471210    F51  C~1vWI      
2014 12  14.39323  03 54 50.595  -08 11 50.00  21.3w 471210    F51  C~1vWI      
2014 12  14.40382  03 54 50.546  -08 11 49.93  21.1w 471210    F51  C~1vWI      
2014 12  26.31869  03 53 55.451  -08 10 10.80  20.7i 471210    F51  C~1vWI      
2014 12  26.32961  03 53 55.377  -08 10 10.52  20.8i 471210    F51  C~1vWI      
2014 12  26.34049  03 53 55.351  -08 10 09.97  20.6i 471210    F51  C~1vWI      
2014 12  26.35136  03 53 55.296  -08 10 10.14  20.6i 471210    F51  C~1vWI      
2015 12  05.16749  04 03 12.03   -07 57 14.4   20.3R 471210    W67  C~1gmE      
2015 12  05.23469  04 03 11.67   -07 57 14.8   20.2R 471210    W67  C~1gmE      
2015 12  06.10261  04 03 07.09   -07 57 19.6   20.2R 471210    W67  C~1gmE      
2015 12  06.16592  04 03 06.75   -07 57 20.3   20.3R 471210    W67  C~1gmE      
2015 12  06.23278  04 03 06.39   -07 57 20.4   20.7R 471210    W67  C~1gmE      

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    -0.21
  2   0.0004      0.00     0.55       0.00     0.18
  3   0.0006      0.00     0.51       0.00     0.24
  4   0.0055      0.00    -0.06       0.00     0.30
  5   0.0058      0.00     0.15       0.00     0.20
  6   0.0060      0.00     0.34       0.00     0.18
  7   0.1752      0.00    -0.54       0.00    -0.19
  8   0.1755      0.00    -0.71       0.00    -0.26
  9   0.9567      0.00    -0.05       0.00    -0.27
 10   0.9567      0.00    -0.12       0.00    -0.19
 11   0.9568      0.00    -0.05       0.00    -0.21
 12   0.9569      0.00     0.01       0.00    -0.15
 13   0.9806      0.00     0.11       0.00     0.45
 14   0.9807      0.00     0.19       0.00     0.40
 15   1.9394      0.00     0.07       0.00    -0.20
 16   1.9394      0.00     0.13       0.00    -0.12
 17   1.9394      0.00     0.05       0.00    -0.14
 18   1.9530      0.00    -0.03       0.00    -0.20
 19   1.9531      0.00    -0.05       0.00    -0.24
 20   1.9531      0.00    -0.12       0.00    -0.21
 21   2.1150      0.00    -0.06       0.00    -0.08
 22   2.1151      0.00    -0.23       0.00    -0.04
 23   3.8809      0.00    -0.12       0.00     0.03
 24   3.8810      0.00    -0.08       0.00     0.04
 25   3.8810      0.00    -0.06       0.00     0.05
 26   3.8810      0.00    -0.12       0.00     0.06
 27   3.9272      0.00    -0.15       0.00     0.12
 28   3.9272      0.00    -0.06       0.00    -0.20
 29   3.9272      0.00     0.06       0.00    -0.11
 30   3.9273      0.00     0.18       0.00    -0.02
 31   3.9903      0.00    -0.05       0.00    -0.09
 32   3.9904      0.00     0.14       0.00    -0.03
 33   3.9904      0.00     0.10       0.00    -0.21
 34   3.9904      0.00     0.00       0.00     0.14
 35   4.0203      0.00     0.15       0.00     0.05
 36   4.0203      0.00     0.13       0.00     0.16
 37   4.0204      0.00     0.04       0.00    -0.01
 38   4.0204      0.00     0.24       0.00     0.06
 39   4.1131      0.00     0.06       0.00     0.20
 40   4.1132      0.00     0.21       0.00     0.05
 41   4.1132      0.00     0.27       0.00     0.09
 42   4.1458      0.00     0.39       0.00    -0.17
 43   4.1458      0.00    -0.01       0.00    -0.04
 44   4.1459      0.00     0.31       0.00     0.36
 45   4.1459      0.00     0.20       0.00     0.04
 46   5.0872      0.00    -0.14       0.00     0.18
 47   5.0874      0.00    -0.11       0.00     0.18
 48   5.0898      0.00     0.09       0.00     0.22
 49   5.0899      0.00     0.09       0.00    -0.15
 50   5.0901      0.00     0.07       0.00     0.09

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.

471210    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        51.239    51.239    51.240
ecceobj         0.286     0.286     0.286
incobj         27.775    27.775    27.775
qmin           35.931    35.826    35.962
qmax           65.992    66.019    65.957
amean          50.642    50.640    50.657
amin           50.148    50.144    50.161
amax           51.243    51.239    51.240
emean           0.270     0.272     0.270
emin            0.252     0.254     0.253
emax            0.289     0.290     0.288
imean          27.093    27.040    27.094
imin           26.607    26.550    26.637
imax           27.655    27.611    27.657
excite_mean     0.530     0.530     0.530
fracstop        1.000     1.000     1.000
cjmean          2.818     2.818     2.818

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       175.3     175.2     174.2
kozaiamp        180.0     180.0     180.0