Orbit Fit and Astrometric record for 14VW37

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: 14VW37    
# Created Sat Oct 21 01:38:29 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:   1.17y
# First observation: 2014/11/12
#  Last observation: 2016/01/14
Preliminary a, adot, b, bdot, g, gdot:
   0.000063   0.029832  -0.000068   0.004292   0.027399   0.000000
# Chi-squared of fit:     4.79 DOF:   26 RMS:  0.10
# Min/Max residuals:    -0.16    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.786965E-05  3.007770E-02  2.368993E-06  4.287629E-03  2.765626E-02  1.172638E-03
# Covariance matrix:
  4.9574E-13  1.8609E-13 -2.5904E-13  3.3009E-13  6.0841E-13  2.0539E-11
  1.8609E-13  3.0145E-12 -6.9165E-13  1.5592E-12  1.6735E-12  1.1437E-10
 -2.5904E-13 -6.9165E-13  5.1817E-13 -7.0905E-13 -6.9137E-13 -3.1866E-11
  3.3009E-13  1.5592E-12 -7.0905E-13  1.3911E-12  1.1328E-12  6.9531E-11
  6.0841E-13  1.6735E-12 -6.9137E-13  1.1328E-12  1.6420E-12  7.6936E-11
  2.0539E-11  1.1437E-10 -3.1866E-11  6.9531E-11  7.6936E-11  5.0669E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -49.423506   43.528877   -0.103166   -0.748287   -0.641076  2456973.849725
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           16.22476 +/-     0.793
Argument of Peri:      255.93979 +/-     1.065
Long of Asc Node:      122.89393 +/-     0.002
Inclination:            48.77548 +/-     0.000
Eccentricity:         0.13274083 +/-    0.0009
Semi-Major Axis:     42.10047606 +/-    0.0096
Time of Perihelion: 2452473.6889 +/-     219.7
Perihelion:          36.51202380 +/-    0.0400
Aphelion:            47.68892832 +/-    0.0406
Period (y)              273.1736 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           17.69263125 +/-    0.0008
Ecliptic Y           16.95343001 +/-    0.0007
Ecliptic Z          -27.46351884 +/-    0.0013
Ecliptic XDOT        -0.00176653 +/-    0.0000
Ecliptic YDOT         0.00242792 +/-    0.0000
Ecliptic ZDOT         0.00018802 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.80615243 +/-    0.0011
Geocenter to KBO     36.15817649 +/-    0.0017
# Hcoef:  7.61

The following table shows the complete astrometric record for 14VW37. 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 (14VW37) followed by the observatory code and reference code for the source of the astrometry.

2014 11  12.348947 03 46 05.61   -31 14 33.6   22.6z 14VW37    W84  C~1wab      
2014 11  18.335509 03 45 27.76   -31 15 50.0   24.1g 14VW37    W84  C~1wab      
2015 01  08.153218 03 40 49.43   -30 54 19.8   22.8z 14VW37    W84  C~1wab      
2015 01  10.170671 03 40 42.26   -30 52 23.3   22.6i 14VW37    W84  C~1wab      
2015 01  25.137106 03 40 03.28   -30 36 04.0   23.5g 14VW37    W84  C~1wab      
2015 01  26.143035 03 40 01.58   -30 34 52.0   22.3i 14VW37    W84  C~1wab      
2015 01  26.144395 03 40 01.59   -30 34 51.8   23.2g 14VW37    W84  C~1wab      
2015 01  26.145745 03 40 01.59   -30 34 51.6   22.3r 14VW37    W84  C~1wab      
2015 02  01.109757 03 39 54.21   -30 27 30.6   22.9z 14VW37    W84  C~1wab      
2015 11  15.345058 03 52 56.38   -30 26 04.6   22.6i 14VW37    W84  C~1wab      
2015 11  16.329769 03 52 50.19   -30 26 18.1   22.7r 14VW37    W84  C~1wab      
2015 11  16.331123 03 52 50.21   -30 26 18.2   23.0g 14VW37    W84  C~1wab      
2015 11  29.297685 03 51 28.26   -30 27 16.9   22.5z 14VW37    W84  C~1wab      
2016 01  14.166875 03 47 34.22   -30 01 07.2   22.7i 14VW37    W84  C~1wab      
2016 01  14.168264 03 47 34.21   -30 01 07.0   23.3r 14VW37    W84  C~1wab      
2016 01  14.169641 03 47 34.21   -30 01 07.1   23.6g 14VW37    W84  C~1wab      

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    -0.14       0.00     0.02
  2   0.0164   -482.75     0.12      91.45    -0.02
  3   0.1555  -3429.95    -0.04    2492.87    -0.16
  4   0.1610  -3479.26    -0.13    2633.14     0.01
  5   0.2020  -3636.24     0.19    3723.09     0.06
  6   0.2048  -3633.65    -0.15    3798.35    -0.02
  7   0.2048  -3633.46     0.03    3798.50     0.02
  8   0.2048  -3633.39     0.09    3798.69     0.11
  9   0.2211  -3580.61     0.06    4247.00     0.00
 10   1.0075   5970.33    -0.07     908.32    -0.06
 11   1.0102   5890.57    -0.09     923.83     0.12
 12   1.0102   5890.78     0.23     923.64    -0.09
 13   1.0457   4876.86    -0.14    1239.67    -0.05
 14   1.1713   2569.62     0.04    3758.73    -0.01
 15   1.1713   2569.57     0.01    3758.96     0.13
 16   1.1713   2569.54     0.00    3758.87    -0.07

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.

14VW37    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.484    42.535    42.437
ecceobj         0.141     0.144     0.138
incobj         48.779    48.778    48.779
qmin           35.807    35.583    36.029
qmax           48.683    49.005    48.382
amean          42.142    42.190    42.089
amin           41.813    41.843    41.751
amax           42.509    42.551    42.441
emean           0.120     0.117     0.118
emin            0.090     0.072     0.096
emax            0.147     0.153     0.140
imean          47.342    47.375    47.340
imin           47.017    46.993    47.034
imax           47.633    47.795    47.600
excite_mean     0.745     0.745     0.745
fracstop        1.000     1.000     1.000
cjmean          2.306     2.306     2.307

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       186.5     200.6     179.8
kozaiamp        180.0     179.9     180.0