Orbit Fit and Astrometric record for 14XV40

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: 14XV40    
# Created Mon Oct 23 01:38:32 2017
# Orbit generated from Bernstein formalism
# Fitting   45 observations of   45
# Arc:   2.23y
# First observation: 2012/12/22
#  Last observation: 2015/03/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000027   0.027847  -0.000067   0.018194   0.027888   0.000000
# Chi-squared of fit:    18.84 DOF:   84 RMS:  0.11
# Min/Max residuals:    -0.43    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.584984E-05  2.751681E-02  1.012716E-05  1.797452E-02  2.748572E-02 -5.704056E-03
# Covariance matrix:
  2.9339E-13 -3.0838E-13  3.5322E-14 -1.3229E-13 -1.3890E-13 -3.0627E-12
 -3.0838E-13  1.8071E-12 -3.3461E-13  1.2661E-12  1.5585E-12  2.9242E-11
  3.5322E-14 -3.3461E-13  3.3670E-13 -3.8039E-13 -2.9436E-13 -5.6934E-12
 -1.3229E-13  1.2661E-12 -3.8039E-13  1.0058E-12  1.1194E-12  2.1505E-11
 -1.3890E-13  1.5585E-12 -2.9436E-13  1.1194E-12  1.4761E-12  2.5823E-11
 -3.0627E-12  2.9242E-11 -5.6934E-12  2.1505E-11  2.5823E-11  4.9689E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   15.847308  116.020575    0.415235    0.242851   -0.855261  2456284.030978
# Heliocentric elements and errors
Epoch:              2456280.5000  =  2012/12/19
Mean Anomaly:          346.43245 +/-     0.034
Argument of Peri:       62.60864 +/-     0.100
Long of Asc Node:       93.23539 +/-     0.000
Inclination:            36.32104 +/-     0.000
Eccentricity:         0.42643220 +/-    0.0006
Semi-Major Axis:     61.25601284 +/-    0.0389
Time of Perihelion: 2462880.1420 +/-      15.5
Perihelion:          35.13447643 +/-    0.0407
Aphelion:            87.37754925 +/-    0.0651
Period (y)              479.4367 +/-      0.46
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -15.37018315 +/-    0.0007
Ecliptic Y           32.43524954 +/-    0.0014
Ecliptic Z            9.93546919 +/-    0.0004
Ecliptic XDOT        -0.00201498 +/-    0.0000
Ecliptic YDOT        -0.00213157 +/-    0.0000
Ecliptic ZDOT         0.00156737 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.24246891 +/-    0.0012
Geocenter to KBO     36.38252649 +/-    0.0016
# Hcoef:  6.02

The following table shows the complete astrometric record for 14XV40. 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 (14XV40) followed by the observatory code and reference code for the source of the astrometry.

2012 12  22.53020  08 06 37.086  +36 28 14.68  22.2w 14XV40    F51  C~1vXw      
2012 12  22.54439  08 06 37.010  +36 28 15.19  21.6w 14XV40    F51  C~1vXw      
2012 12  22.55848  08 06 36.924  +36 28 15.54  21.8w 14XV40    F51  C~1vXw      
2012 12  22.57248  08 06 36.852  +36 28 16.07  21.7w 14XV40    F51  C~1vXw      
2014 01  19.43831  08 12 38.352  +37 22 51.03  21.5r 14XV40    F51  C~1vXw      
2014 01  19.45056  08 12 38.268  +37 22 51.57  21.5r 14XV40    F51  C~1vXw      
2014 01  19.46359  08 12 38.204  +37 22 51.91  21.2i 14XV40    F51  C~1vXw      
2014 03  20.33386  08 07 18.264  +37 32 49.89  21.4r 14XV40    F51  C~1vXw      
2014 03  20.34532  08 07 18.240  +37 32 49.70  21.3r 14XV40    F51  C~1vXw      
2014 03  20.35704  08 07 18.210  +37 32 49.82  21.6r 14XV40    F51  C~1vXw      
2014 03  20.36908  08 07 18.187  +37 32 49.63  21.5r 14XV40    F51  C~1vXw      
2014 12  01.53073  08 26 14.826  +37 28 00.18  21.6w 14XV40    F51  C~1vXw      
2014 12  01.54355  08 26 14.791  +37 28 00.71  21.6w 14XV40    F51  C~1vXw      
2014 12  01.55637  08 26 14.748  +37 28 01.52  21.7w 14XV40    F51  C~1vXw      
2014 12  25.51529  08 24 27.858  +37 45 16.39  21.5w 14XV40    F51  C~1vXw      
2014 12  25.52730  08 24 27.790  +37 45 16.75  21.6w 14XV40    F51  C~1vXw      
2014 12  25.54131  08 24 27.693  +37 45 17.49  21.7w 14XV40    F51  C~1vXw      
2014 12  25.55837  08 24 27.596  +37 45 18.31  21.6w 14XV40    F51  C~1vXw      
2015 01  11.50852  08 22 43.940  +37 56 03.99  20.7i 14XV40    F51  C~1vXw      
2015 01  11.52065  08 22 43.857  +37 56 04.05  20.8i 14XV40    F51  C~1vXw      
2015 01  11.54471  08 22 43.726  +37 56 05.33  21.1i 14XV40    F51  C~1vXw      
2015 01  27.46427  08 20 57.191  +38 04 08.84  21.6w 14XV40    F51  C~1vXw      
2015 01  27.47652  08 20 57.101  +38 04 09.13  21.6w 14XV40    F51  C~1vXw      
2015 01  27.48871  08 20 57.027  +38 04 09.50  21.6w 14XV40    F51  C~1vXw      
2015 01  27.50090  08 20 56.946  +38 04 09.83  21.6w 14XV40    F51  C~1vXw      
2015 01  29.38632  08 20 44.264  +38 04 57.23  21.3i 14XV40    F51  C~1vXw      
2015 01  29.39787  08 20 44.206  +38 04 57.54  21.4i 14XV40    F51  C~1vXw      
2015 01  29.40936  08 20 44.105  +38 04 57.98  21.5i 14XV40    F51  C~1vXw      
2015 01  29.42084  08 20 44.038  +38 04 58.31  21.1i 14XV40    F51  C~1vXw      
2015 02  22.28772  08 18 14.238  +38 11 38.86  21.5w 14XV40    F51  C~1vXw      
2015 02  22.29900  08 18 14.165  +38 11 38.87  21.5w 14XV40    F51  C~1vXw      
2015 02  22.31023  08 18 14.104  +38 11 38.91  21.6w 14XV40    F51  C~1vXw      
2015 02  22.32145  08 18 14.045  +38 11 39.06  21.6w 14XV40    F51  C~1vXw      
2015 02  23.41153  08 18 07.969  +38 11 48.08  21.6w 14XV40    F51  C~1vXw      
2015 02  23.42346  08 18 07.908  +38 11 48.16  21.4w 14XV40    F51  C~1vXw      
2015 02  23.43537  08 18 07.833  +38 11 48.29  21.5w 14XV40    F51  C~1vXw      
2015 02  23.44727  08 18 07.770  +38 11 48.35  21.7w 14XV40    F51  C~1vXw      
2015 03  16.31410  08 16 32.795  +38 12 08.30  21.7w 14XV40    F51  C~1vXw      
2015 03  16.32568  08 16 32.757  +38 12 08.10  21.8w 14XV40    F51  C~1vXw      
2015 03  16.33733  08 16 32.726  +38 12 08.10  21.8w 14XV40    F51  C~1vXw      
2015 03  16.34897  08 16 32.682  +38 12 08.07  21.8w 14XV40    F51  C~1vXw      
2015 03  17.29169  08 16 29.476  +38 12 02.34  21.7w 14XV40    F51  C~1vXw      
2015 03  17.30330  08 16 29.430  +38 12 02.30  21.8w 14XV40    F51  C~1vXw      
2015 03  17.31857  08 16 29.385  +38 12 02.20  21.7w 14XV40    F51  C~1vXw      
2015 03  17.33009  08 16 29.340  +38 12 02.13  21.5w 14XV40    F51  C~1vXw      

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    -0.00       0.00     0.04
  2   0.0000     -1.01     0.06       0.30     0.04
  3   0.0001     -2.09     0.04       0.42    -0.14
  4   0.0001     -3.06     0.14       0.74    -0.10
  5   1.0757   3485.91    -0.18    4166.71    -0.17
  6   1.0758   3484.81    -0.24    4167.00     0.01
  7   1.0758   3483.99     0.06    4167.15     0.06
  8   1.2397   -362.98    -0.15    3890.04     0.08
  9   1.2397   -363.21    -0.03    3889.79     0.01
 10   1.2398   -363.59    -0.05    3889.83     0.23
 11   1.2398   -363.81     0.09    3889.59     0.17
 12   1.9411  12847.44     0.10    6904.27    -0.11
 13   1.9412  12846.90     0.19    6904.67    -0.12
 14   1.9412  12846.19     0.12    6905.32     0.11
 15   2.0068  11341.96     0.03    7567.31     0.05
 16   2.0068  11341.08     0.07    7567.44    -0.08
 17   2.0069  11339.77    -0.17    7567.86     0.03
 18   2.0069  11338.44    -0.20    7568.34     0.15
 19   2.0533   9980.56    -0.32    7871.46    -0.08
 20   2.0534   9979.59    -0.26    7871.26    -0.43
 21   2.0534   9977.76    -0.05    7872.10     0.10
 22   2.0970   8633.10     0.09    8016.25     0.03
 23   2.0970   8632.00     0.03    8016.25    -0.01
 24   2.0971   8631.06     0.12    8016.39     0.07
 25   2.0971   8630.04     0.14    8016.47     0.10
 26   2.1023   8472.79    -0.10    8024.24    -0.09
 27   2.1023   8472.05     0.14    8024.37    -0.01
 28   2.1023   8470.78    -0.16    8024.49     0.07
 29   2.1024   8469.93    -0.04    8024.61     0.15
 30   2.1677   6654.76     0.10    7969.03     0.12
 31   2.1677   6653.93     0.03    7968.83     0.01
 32   2.1678   6653.22     0.08    7968.69    -0.04
 33   2.1678   6652.51     0.13    7968.66     0.02
 34   2.1708   6580.73     0.07    7959.67    -0.02
 35   2.1708   6580.02     0.15    7959.57    -0.01
 36   2.1709   6579.13     0.05    7959.47     0.01
 37   2.1709   6578.39     0.10    7959.35    -0.01
 38   2.2280   5486.10    -0.12    7703.76    -0.02
 39   2.2281   5485.71    -0.04    7703.45    -0.14
 40   2.2281   5485.36     0.06    7703.37    -0.04
 41   2.2281   5484.86     0.02    7703.21    -0.01
 42   2.2307   5449.53     0.00    7688.44    -0.03
 43   2.2307   5449.01    -0.07    7688.27    -0.01
 44   2.2308   5448.52     0.02    7688.05     0.01
 45   2.2308   5448.02    -0.04    7687.85     0.00

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.

14XV40    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        61.067    61.155    60.980
ecceobj         0.423     0.425     0.422
incobj         36.323    36.322    36.323
qmin           33.981    34.252    34.290
qmax           89.202    89.035    88.493
amean          60.907    61.000    60.849
amin           60.150    60.298    60.138
amax           61.875    61.928    61.746
emean           0.420     0.418     0.415
emin            0.399     0.398     0.395
emax            0.442     0.438     0.435
imean          34.967    35.086    35.112
imin           34.289    34.477    34.503
imax           35.780    35.874    35.923
excite_mean     0.710     0.711     0.709
fracstop        1.000     1.000     1.000
cjmean          2.611     2.610     2.611

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       199.0     204.7     202.6
kozaiamp        180.0     180.0     144.3