Orbit Fit and Astrometric record for 14VT37

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: 14VT37    
# Created Mon Dec 18 02:38:06 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:  59.98d
# First observation: 2014/11/12
#  Last observation: 2015/01/11
Preliminary a, adot, b, bdot, g, gdot:
  -0.000010   0.045632   0.000021  -0.023203   0.035230   0.000000
# Chi-squared of fit:     4.90 DOF:   24 RMS:  0.10
# Min/Max residuals:    -0.27    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.647134E-05  3.691398E-02 -9.931224E-06 -2.157401E-02  3.393677E-02  5.120772E-03
# Covariance matrix:
  3.1277E-13  2.9944E-12  1.1976E-14 -1.7181E-12  2.2640E-12  2.8795E-10
  2.9944E-12  2.3440E-08  5.5046E-11 -4.3410E-09  3.4231E-09 -3.7593E-07
  1.1976E-14  5.5046E-11  2.8997E-13 -1.1769E-11  8.0658E-12 -8.8125E-10
 -1.7181E-12 -4.3410E-09 -1.1769E-11  8.4927E-10 -6.4426E-10  6.7654E-08
  2.2640E-12  3.4231E-09  8.0658E-12 -6.4426E-10  5.1762E-10 -5.1180E-08
  2.8795E-10 -3.7593E-07 -8.8125E-10  6.7654E-08 -5.1180E-08  6.8999E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
  -15.361565   41.077177   -0.141423   -0.259611   -0.945675  2456973.630599
# Heliocentric elements and errors
Epoch:              2456970.5000  =  2014/11/09
Mean Anomaly:           18.80865 +/-     7.421
Argument of Peri:      174.88581 +/-    14.324
Long of Asc Node:      197.66760 +/-     0.088
Inclination:            33.46318 +/-     0.093
Eccentricity:         0.26536919 +/-    0.0359
Semi-Major Axis:     40.00936923 +/-    0.6601
Time of Perihelion: 2452141.0670 +/-    1901.8
Perihelion:          29.39211528 +/-    1.5156
Aphelion:            50.62662318 +/-    1.6612
Period (y)              253.0759 +/-      6.26
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.06236384 +/-    0.0144
Ecliptic Y           19.42241173 +/-    0.0125
Ecliptic Z           -7.80629867 +/-    0.0052
Ecliptic XDOT        -0.00200838 +/-    0.0002
Ecliptic YDOT         0.00219878 +/-    0.0001
Ecliptic ZDOT        -0.00178764 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   30.41243618 +/-    0.0132
Geocenter to KBO     29.46656159 +/-    0.0198
# Hcoef:  9.49

The following table shows the complete astrometric record for 14VT37. 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 (14VT37) followed by the observatory code and reference code for the source of the astrometry.

2014 11  12.129821 02 53 29.03   +00 30 52.7   25.0g 14VT37    W84  C~1VHW      
2014 11  12.132037 02 53 29.00   +00 30 52.6   23.6r 14VT37    W84  C~1VHW      
2014 11  12.134398 02 53 28.99   +00 30 52.7   23.2i 14VT37    W84  C~1VHW      
2014 11  12.138183 02 53 28.96   +00 30 52.4   23.9z 14VT37    W84  C~1VHW      
2014 11  19.193281 02 52 45.81   +00 26 50.9   24.2g 14VT37    W84  C~1VHW      
2014 11  19.195498 02 52 45.80   +00 26 50.6   23.4r 14VT37    W84  C~1VHW      
2014 11  19.197847 02 52 45.78   +00 26 50.6   23.7i 14VT37    W84  C~1VHW      
2014 11  19.201632 02 52 45.76   +00 26 50.7   23.1z 14VT37    W84  C~1VHW      
2014 11  26.196597 02 52 04.31   +00 23 25.6   24.0r 14VT37    W84  C~1VHW      
2014 11  26.198947 02 52 04.30   +00 23 25.5   23.5i 14VT37    W84  C~1VHW      
2014 11  26.202755 02 52 04.29   +00 23 25.5   23.9z 14VT37    W84  C~1VHW      
2014 11  29.197315 02 51 47.17   +00 22 09.1   24.0r 14VT37    W84  C~1VHW      
2014 11  29.199653 02 51 47.16   +00 22 08.9   23.6i 14VT37    W84  C~1VHW      
2015 01  11.101256 02 49 00.24   +00 17 14.9   24.3g 14VT37    W84  C~1VHW      
2015 01  11.105822 02 49 00.23   +00 17 15.2   23.5i 14VT37    W84  C~1VHW      

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     0.15       0.00    -0.02
  2   0.0000     -0.46    -0.09       0.04     0.03
  3   0.0000     -0.57     0.04       0.18     0.19
  4   0.0000     -1.09    -0.10       0.03     0.06
  5   0.0193   -690.95     0.01     -36.27    -0.03
  6   0.0193   -691.19    -0.01     -36.51    -0.27
  7   0.0194   -691.47    -0.06     -36.42    -0.17
  8   0.0194   -691.73     0.05     -36.23     0.02
  9   0.0385  -1346.37    -0.11     -45.43     0.00
 10   0.0385  -1346.54    -0.07     -45.48    -0.05
 11   0.0385  -1346.69     0.14     -45.44    -0.01
 12   0.0467  -1614.59     0.02     -41.30     0.20
 13   0.0467  -1614.79     0.03     -41.45     0.05
 14   0.1642  -4091.95    -0.02     429.18    -0.13
 15   0.1642  -4092.01     0.02     429.52     0.12

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.

14VT37    quality flag:1

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        40.335    45.804    38.472
ecceobj         0.272     0.420     0.198
incobj         33.361    33.681    33.096
qmin           29.200    23.890    29.148
qmax           51.303    68.799    47.797
amean          39.960    45.750    38.191
amin           39.720    44.895    37.859
amax           40.335    47.650    38.749
emean           0.265     0.442     0.166
emin            0.261     0.371     0.076
emax            0.272     0.480     0.237
imean          33.457    32.596    33.732
imin           33.378    31.155    32.298
imax           33.553    35.595    34.975
excite_mean     0.612     0.697     0.581
fracstop        0.002     0.272     0.741
cjmean          2.622     2.518     2.634

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       173.9     185.6     180.0
kozaiamp          1.1      27.0     180.0