Orbit Fit and Astrometric record for 01FQ185

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: 01FQ185   
# Created Sun Oct 22 01:37:11 2017
# Orbit generated from Bernstein formalism
# Fitting   50 observations of   53
# Arc:  16.98y
# First observation: 1999/03/20
#  Last observation: 2016/03/13
Preliminary a, adot, b, bdot, g, gdot:
  -0.008483   0.035346  -0.000343   0.001295   0.037592   0.000000
# Chi-squared of fit:    63.05 DOF:   94 RMS:  0.20
# Min/Max residuals:    -0.48    0.49
# Exact a, adot, b, bdot, g, gdot:
  1.976122E-05  3.148479E-02  2.995528E-06  1.149405E-03  2.767870E-02 -1.830220E-03
# Covariance matrix:
  3.1838E-13 -8.0421E-14  5.8024E-15 -2.5588E-15 -4.9519E-14 -1.1107E-13
 -8.0421E-14  3.3422E-14 -2.6233E-15  1.1890E-15  3.7591E-14  5.1267E-14
  5.8024E-15 -2.6233E-15  1.6444E-13 -1.1189E-14 -2.0193E-15 -4.1939E-15
 -2.5588E-15  1.1890E-15 -1.1189E-14  9.2286E-16  1.2520E-15  1.8805E-15
 -4.9519E-14  3.7591E-14 -2.0193E-15  1.2520E-15  1.8792E-13  5.0467E-14
 -1.1107E-13  5.1267E-14 -4.1939E-15  1.8805E-15  5.0467E-14  8.1294E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.540874 -174.897742    0.101589    0.044035   -0.997896  2451257.815983
# Heliocentric elements and errors
Epoch:              2451250.5000  =  1999/03/13
Mean Anomaly:          348.01963 +/-     0.003
Argument of Peri:       68.88912 +/-     0.004
Long of Asc Node:      135.28996 +/-     0.001
Inclination:             3.24355 +/-     0.000
Eccentricity:         0.22321558 +/-    0.0001
Semi-Major Axis:     47.30070123 +/-    0.0038
Time of Perihelion: 2455204.7801 +/-       0.8
Perihelion:          36.74244800 +/-    0.0038
Aphelion:            57.85895445 +/-    0.0053
Period (y)              325.3191 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.94598974 +/-    0.0006
Ecliptic Y           -3.19785996 +/-    0.0001
Ecliptic Z            1.60180153 +/-    0.0000
Ecliptic XDOT         0.00045999 +/-    0.0000
Ecliptic YDOT        -0.00307659 +/-    0.0000
Ecliptic ZDOT         0.00010557 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.11870464 +/-    0.0006
Geocenter to KBO     36.12886815 +/-    0.0006
# Hcoef:  6.70

The following table shows the complete astrometric record for 01FQ185. 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 (01FQ185) followed by the observatory code and reference code for the source of the astrometry.

1999 03  20.31524  12 22 45.66   +00 18 20.0   22.9V 01FQ185   645  cv2247      
1999 03  22.30972  12 22 35.91   +00 19 25.6   22.9V 01FQ185   645  cv2247      
2001 03  26.36019  12 35 42.36   -00 56 41.2   23.2R 01FQ185   695  Cd1722      
2001 03  26.43943  12 35 41.97   -00 56 38.7         01FQ185   695  Cd1722      
2001 04  24.21991  12 33 24.80   -00 42 03.9   21.9R 01FQ185   688  Cd1722      
2001 04  24.33478  12 33 24.32   -00 41 59.6         01FQ185   688  Cd1722      
2001 05  29.26561  12 31 29.80   -00 31 15.9   22.1R 01FQ185   695  Cd1722      
2001 05  29.32104  12 31 29.66   -00 31 15.0         01FQ185   695  Cd1722      
2002 03  18.37628  12 43 09.37   -01 40 37.5   21.9R 01FQ185   695  Cf4951      
2002 03  20.43875  12 42 59.47   -01 39 30.5         01FQ185   695  Cf4951      
2002 03  20.50151  12 42 59.21   -01 39 28.5         01FQ185   695  Cf4951      
2003 03  06.46192  12 50 52.57   -02 26 24.7   22.0R 01FQ185   662  Ch5853      
2003 03  06.51316  12 50 52.36   -02 26 23.0         01FQ185   662  Ch5853      
2004 03  18.39671  12 56 45.94   -02 59 23.2   22.5R 01FQ185   688  Ck2063      
2004 03  18.47315  12 56 45.62   -02 59 20.8         01FQ185   688  Ck2063      
2008 05  03.27183  13 20 37.64   -05 13 25.4         01FQ185   695  Cz0380      
2008 05  04.25686  13 20 33.16   -05 12 59.8         01FQ185   695  Cz0380      
2013 05  03.37787  13 55 23.196  -08 23 04.91  22.2w 01FQ185   F51  C~1vV5      
2013 05  03.39141  13 55 23.133  -08 23 04.57  22.2w 01FQ185   F51  C~1vV5      
2013 05  03.40499  13 55 23.064  -08 23 04.50  22.1w 01FQ185   F51  C~1vV5      
2013 05  03.41854  13 55 23.009  -08 23 03.80  22.3w 01FQ185   F51  C~1vV5      
2014 03  27.52945  14 05 25.930  -09 16 45.46  22.2w 01FQ185   F51  C~1vV5      
2014 03  27.54079  14 05 25.846  -09 16 45.02  22.3w 01FQ185   F51  C~1vV5      
2014 03  27.55164  14 05 25.810  -09 16 44.68  22.2w 01FQ185   F51  C~1vV5      
2014 03  27.56247  14 05 25.769  -09 16 44.22  22.4w 01FQ185   F51  C~1vV5      
2014 04  05.52189  14 04 44.445  -09 12 40.75  22.2w 01FQ185   F51  C~1vV5      
2014 04  05.54300  14 04 44.349  -09 12 40.25  22.3w 01FQ185   F51  C~1vV5      
2014 04  05.55357  14 04 44.293  -09 12 39.93  22.1w 01FQ185   F51  C~1vV5      
2014 04  29.44310  14 02 44.426  -09 01 34.54  22.1w 01FQ185   F51  C~1vV5      
2014 04  29.45610  14 02 44.381  -09 01 34.37  22.3w 01FQ185   F51  C~1vV5      
2014 04  29.46913  14 02 44.305  -09 01 34.00  22.0w 01FQ185   F51  C~1vV5      
2014 04  29.48214  14 02 44.233  -09 01 33.62  22.5w 01FQ185   F51  C~1vV5      
2014 05  20.33525  14 01 04.102  -08 53 01.03  22.7w 01FQ185   F51  C~1vV5      
2014 05  20.34818  14 01 04.056  -08 53 00.55  22.5w 01FQ185   F51  C~1vV5      
2014 05  20.36111  14 01 04.004  -08 53 00.43  22.5w 01FQ185   F51  C~1vV5      
2014 05  20.37403  14 01 03.936  -08 53 00.04  22.8w 01FQ185   F51  C~1vV5      
2014 05  21.33107  14 00 59.736  -08 52 39.75  22.7w 01FQ185   F51  C~1vV5      
2014 05  21.34458  14 00 59.679  -08 52 39.36  22.4w 01FQ185   F51  C~1vV5      
2014 05  21.35806  14 00 59.618  -08 52 39.13  22.5w 01FQ185   F51  C~1vV5      
2014 05  21.37151  14 00 59.569  -08 52 38.79  22.5w 01FQ185   F51  C~1vV5      
2015 04  23.39066  14 10 18.204  -09 40 31.35  22.0w 01FQ185   F51  C~1vV5      
2015 04  23.40316  14 10 18.130  -09 40 30.93  22.4w 01FQ185   F51  C~1vV5      
2015 04  23.41568  14 10 18.065  -09 40 30.65  22.2w 01FQ185   F51  C~1vV5      
2015 04  23.42817  14 10 18.001  -09 40 30.16  22.1w 01FQ185   F51  C~1vV5      
2015 04  25.45560  14 10 07.626  -09 39 35.06  22.1w 01FQ185   F51  C~1vV5      
2015 04  25.46782  14 10 07.569  -09 39 34.65  22.1w 01FQ185   F51  C~1vV5      
2015 04  25.47993  14 10 07.506  -09 39 34.12  22.3w 01FQ185   F51  C~1vV5      
2015 04  25.49244  14 10 07.448  -09 39 33.96  22.3w 01FQ185   F51  C~1vV5      
2015 05  22.37561  14 07 56.277  -09 28 30.85  22.1w 01FQ185   F51  C~1vV5      
2015 05  22.38890  14 07 56.221  -09 28 30.46  22.4w 01FQ185   F51  C~1vV5      
2015 05  22.40215  14 07 56.167  -09 28 30.33  22.6w 01FQ185   F51  C~1vV5      
2016 03  13.35911  14 20 19.99   -10 32 58.7   22.2R 01FQ185   G37  C~1pPW      
2016 03  13.44056  14 20 19.70   -10 32 56.9         01FQ185   G37  C~1pPW      

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    -0.37       0.00    -0.48
  2   0.0055   -160.27    -0.27       2.29    -0.36
  3   2.0179  12495.37     0.21     482.92     0.02
  4   2.0181  12488.98     0.33     482.90    -0.01
  5   2.0969  10246.59 (   0.95)    471.34 (   1.01)
  6   2.0972  10238.26 (   0.87)    472.44 (   2.33)
  7   2.1929   8402.32     0.24     382.92     0.02
  8   2.1930   8400.03    -0.32     382.92     0.21
  9   2.9954  19739.53     0.18     715.11    -0.01
 10   3.0010  19575.22    -0.35     717.97     0.25
 11   3.0012  19570.81     0.29     718.27     0.49
 12   3.9621  27301.53     0.29     934.68    -0.23
 13   3.9622  27297.91     0.36     935.00    -0.01
 14   4.9968  33068.92    -0.26    1204.66     0.43
 15   4.9970  33063.43 (   0.37)   1204.99 (   0.68)
 16   9.1224  57041.74    -0.20    2194.36    -0.26
 17   9.1251  56964.65    -0.07    2191.94    -0.03
 18  14.1220  94618.65    -0.12    3586.58     0.00
 19  14.1220  94617.45    -0.03    3586.54     0.02
 20  14.1221  94616.26     0.09    3586.19    -0.28
 21  14.1221  94615.03     0.16    3586.57     0.15
 22  15.0204 106367.69     0.17    3938.37     0.13
 23  15.0205 106366.02    -0.47    3938.31     0.07
 24  15.0205 106365.24    -0.27    3938.45     0.20
 25  15.0205 106364.31    -0.21    3938.68     0.43
 26  15.0451 105532.04    -0.17    3940.34     0.08
 27  15.0451 105530.14    -0.00    3940.28     0.04
 28  15.0451 105529.01    -0.09    3940.27     0.04
 29  15.1105 103147.79    -0.14    3900.35    -0.02
 30  15.1106 103146.94     0.32    3900.25    -0.07
 31  15.1106 103145.46     0.16    3900.17    -0.11
 32  15.1107 103144.04     0.06    3900.12    -0.11
 33  15.1677 101190.32    -0.15    3819.78    -0.18
 34  15.1678 101189.31    -0.03    3820.00     0.10
 35  15.1678 101188.37     0.15    3819.81    -0.03
 36  15.1679 101187.03    -0.07    3819.79     0.03
 37  15.1705 101105.93    -0.05    3815.14    -0.17
 38  15.1705 101104.78    -0.04    3815.19    -0.04
 39  15.1705 101103.63    -0.03    3815.06    -0.11
 40  15.1706 101102.64     0.14    3815.11     0.02
 41  16.0933 112193.53     0.18    4228.53    -0.07
 42  16.0933 112192.01    -0.02    4228.52    -0.04
 43  16.0934 112190.72     0.01    4228.42    -0.10
 44  16.0934 112189.35    -0.04    4228.55     0.06
 45  16.0989 111978.21    -0.17    4223.23    -0.14
 46  16.0990 111977.00    -0.09    4223.31    -0.01
 47  16.0990 111975.63    -0.18    4223.49     0.20
 48  16.0990 111974.52     0.03    4223.30     0.05
 49  16.1726 109335.25     0.06    4118.89     0.10
 50  16.1727 109334.08     0.08    4118.96     0.24
 51  16.1727 109333.07     0.26    4118.76     0.12
 52  16.9830 124730.30     0.36    4550.55    -0.32
 53  16.9832 124723.97     0.05    4550.72    -0.31

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.

01FQ185    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        47.345    47.357    47.334
ecceobj         0.224     0.224     0.224
incobj          3.242     3.242     3.242
qmin           35.657    35.638    35.627
qmax           60.801    60.765    60.711
amean          47.797    47.797    47.797
amin           47.244    47.230    47.229
amax           48.471    48.450    48.464
emean           0.237     0.237     0.237
emin            0.220     0.218     0.220
emax            0.254     0.254     0.254
imean           1.758     1.738     1.824
imin            1.309     1.252     1.481
imax            2.049     2.031     2.093
excite_mean     0.239     0.239     0.239
fracstop        1.000     1.000     1.000
cjmean          3.077     3.077     3.077

libcent 0       272.3     272.9     271.8
libamp  0        44.3      43.6      46.2
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       187.7     186.2     200.0
kozaiamp        180.0     180.0     180.0