Orbit Fit and Astrometric record for 06HN122

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: 06HN122   
# Created Sat Oct 21 01:37:38 2017
# Orbit generated from Bernstein formalism
# Fitting   17 observations of   19
# Arc:  10.10y
# First observation: 2006/02/06
#  Last observation: 2016/03/13
Preliminary a, adot, b, bdot, g, gdot:
  -0.000126   0.030121   0.000025  -0.004121   0.026818   0.000000
# Chi-squared of fit:    14.15 DOF:   28 RMS:  0.16
# Min/Max residuals:    -0.32    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.727269E-05  3.007972E-02 -2.759208E-06 -4.106973E-03  2.729133E-02  1.360446E-03
# Covariance matrix:
  2.2334E-13 -4.9543E-14 -8.7922E-16  5.3242E-15  2.0022E-13 -1.4684E-13
 -4.9543E-14  1.3655E-13  5.1174E-15 -1.8921E-14  6.4454E-15  5.0269E-13
 -8.7922E-16  5.1174E-15  1.2912E-13 -1.6472E-14  1.3027E-15  1.9611E-14
  5.3242E-15 -1.8921E-14 -1.6472E-14  8.6906E-15  6.9250E-17 -7.2914E-14
  2.0022E-13  6.4454E-15  1.3027E-15  6.9250E-17  4.7609E-13 -1.4533E-14
 -1.4684E-13  5.0269E-13  1.9611E-14 -7.2914E-14 -1.4533E-14  1.9382E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.469295  133.850256   -0.054646    0.008186   -0.983493  2453772.809984
# Heliocentric elements and errors
Epoch:              2453770.5000  =  2006/02/04
Mean Anomaly:           10.84620 +/-     0.010
Argument of Peri:      160.51532 +/-     0.015
Long of Asc Node:      317.28564 +/-     0.000
Inclination:             7.78273 +/-     0.000
Eccentricity:         0.18824571 +/-    0.0001
Semi-Major Axis:     46.06322738 +/-    0.0064
Time of Perihelion: 2450330.1316 +/-       3.1
Perihelion:          37.39202263 +/-    0.0068
Aphelion:            54.73443212 +/-    0.0088
Period (y)              312.6365 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -26.10862288 +/-    0.0006
Ecliptic Y           27.09190727 +/-    0.0007
Ecliptic Z            0.30000482 +/-    0.0000
Ecliptic XDOT        -0.00226999 +/-    0.0000
Ecliptic YDOT        -0.00199584 +/-    0.0000
Ecliptic ZDOT        -0.00041088 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.62607648 +/-    0.0007
Geocenter to KBO     36.64167161 +/-    0.0009
# Hcoef:  7.62

The following table shows the complete astrometric record for 06HN122. 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 (06HN122) followed by the observatory code and reference code for the source of the astrometry.

2006 02  06.30923  09 05 49.91   +17 07 09.7   23.7r 06HN122   568  C~0D4B      
2006 02  06.34890  09 05 49.70   +17 07 10.3   22.9r 06HN122   568  C~0D4B      
2006 02  06.38919  09 05 49.48   +17 07 11.0   23.2r 06HN122   568  C~0D4B      
2006 03  02.21652  09 03 46.00   +17 14 59.1   22.9R 06HN122   695  Cr3609      
2006 03  02.27287  09 03 45.69   +17 15 00.1         06HN122   695  Cr3609      
2006 03  02.32910  09 03 45.42   +17 15 01.1         06HN122   695  Cr3609      
2006 04  26.00584  09 01 28.35   +17 22 01.0   22.6R 06HN122   807  Cr3609      
2006 04  27.00547  09 01 28.56   +17 21 57.1         06HN122   807  Cr3609      
2006 04  28.00755  09 01 28.89   +17 21 52.7         06HN122   807  Cr3609      
2006 05  01.17176  09 01 30.61   +17 21 35.4   23.5R 06HN122   695  Cr3609      
2006 05  01.25610  09 01 30.68   +17 21 35.4         06HN122   695  Cr3609      
2006 05  02.16524  09 01 31.39   +17 21 29.1         06HN122   695  Cr3609      
2006 12  21.36750  09 16 08.660  +16 08 29.93  22.9R 06HN122   695              
2006 12  21.50728  09 16 08.210  +16 08 32.67        06HN122   695              
2013 03  12.14186  09 47 37.81   +12 04 15.4   23.1R 06HN122   695  C~0udP      
2013 03  12.20453  09 47 37.53   +12 04 17.0         06HN122   695  C~0udP      
2013 03  13.13646  09 47 33.34   +12 04 37.7         06HN122   695  C~0udP      
2016 03  13.16104  10 05 46.08   +09 44 16.9   23.3R 06HN122   G37  C~1pPo      
2016 03  13.20119  10 05 45.90   +09 44 18.0         06HN122   G37  C~1pPo      

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     0.03       0.00     0.08
  2   0.0001     -3.06     0.24      -0.29    -0.12
  3   0.0002     -6.28     0.33      -0.53    -0.25
  4   0.0655  -1835.74     0.34     -60.11     0.21
  5   0.0656  -1840.28    -0.21     -60.42     0.07
  6   0.0658  -1844.27    -0.23     -60.57     0.10
  7   0.2155  -3845.98     0.02    -216.22     0.01
  8   0.2182  -3841.99    -0.10    -219.11     0.04
  9   0.2209  -3836.21    -0.04    -221.99     0.09
 10   0.2296  -3807.69    -0.17    -231.62    -0.04
 11   0.2298  -3806.73 (  -0.13)   -231.34 (   0.54)
 12   0.2323  -3795.19     0.03    -234.50    -0.02
 13   0.8708   9541.91    -0.32    -744.54    -0.16
 14   0.8712   9534.88 (  -0.21)   -743.88 (   0.83)
 15   7.0933  40769.15     0.03   -6004.72    -0.29
 16   7.0935  40764.57     0.08   -6004.56    -0.04
 17   7.0960  40697.17     0.01   -6005.28     0.26
 18  10.0968  59793.70    -0.06   -8617.03    -0.05
 19  10.0969  59790.57     0.01   -8616.90     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.

06HN122    quality flag:2

Type:       SCATNEAR  SCATNEAR CLASSICAL

axisobj        46.003    46.022    45.984
ecceobj         0.188     0.188     0.188
incobj          7.791     7.791     7.791
qmin           36.400    36.425    36.400
qmax           56.175    55.989    55.951
amean          46.010    46.008    45.950
amin           45.585    45.575    45.550
amax           46.509    46.496    46.415
emean           0.191     0.190     0.189
emin            0.174     0.178     0.174
emax            0.209     0.206     0.206
imean           8.767     8.948     8.766
imin            7.885     8.126     7.958
imax            9.583     9.740     9.571
excite_mean     0.245     0.246     0.243
fracstop        1.000     1.000     1.000
cjmean          3.052     3.051     3.052

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       184.5     180.5     185.8
kozaiamp        180.0     179.9     180.0