Orbit Fit and Astrometric record for 14QV441

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: 14QV441   
# Created Mon Oct 23 01:38:28 2017
# Orbit generated from Bernstein formalism
# Fitting   27 observations of   28
# Arc:   3.83y
# First observation: 2013/11/23
#  Last observation: 2017/09/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.003146   0.089436   0.001852  -0.041583   0.052154   0.000000
# Chi-squared of fit:    25.47 DOF:   48 RMS:  0.17
# Min/Max residuals:    -0.64    0.37
# Exact a, adot, b, bdot, g, gdot:
  2.405446E-05  7.801267E-02 -9.979813E-06 -3.652185E-02  5.243907E-02 -1.625952E-02
# Covariance matrix:
  1.7293E-13 -1.8084E-13 -2.8330E-14  6.1432E-14 -5.4517E-14 -3.8129E-13
 -1.8084E-13  6.6308E-13  9.9136E-14 -2.5531E-13 -1.4919E-13  1.4838E-12
 -2.8330E-14  9.9136E-14  1.0558E-13 -8.5248E-14 -1.4010E-14  2.4549E-13
  6.1432E-14 -2.5531E-13 -8.5248E-14  1.5642E-13  5.5094E-14 -6.2163E-13
 -5.4517E-14 -1.4919E-13 -1.4010E-14  5.5094E-14  1.8132E-13 -2.8020E-13
 -3.8129E-13  1.4838E-12  2.4549E-13 -6.2163E-13 -2.8020E-13  3.6351E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.969100   -1.109724   -0.869549   -0.088274   -0.455940  2456619.730558
# Heliocentric elements and errors
Epoch:              2456610.5000  =  2013/11/14
Mean Anomaly:          348.09987 +/-     0.003
Argument of Peri:      234.57134 +/-     0.006
Long of Asc Node:      159.23076 +/-     0.000
Inclination:            26.50730 +/-     0.000
Eccentricity:         0.40722701 +/-    0.0000
Semi-Major Axis:     31.69405406 +/-    0.0025
Time of Perihelion: 2458764.8399 +/-       0.4
Perihelion:          18.78737906 +/-    0.0019
Aphelion:            44.60072906 +/-    0.0037
Period (y)              178.4329 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.19821864 +/-    0.0002
Ecliptic Y            0.50063175 +/-    0.0000
Ecliptic Z           -3.62877834 +/-    0.0000
Ecliptic XDOT        -0.00112328 +/-    0.0000
Ecliptic YDOT         0.00409358 +/-    0.0000
Ecliptic ZDOT        -0.00171030 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   19.54457120 +/-    0.0001
Geocenter to KBO     19.06975261 +/-    0.0002
# Hcoef:  8.93

The following table shows the complete astrometric record for 14QV441. 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 (14QV441) followed by the observatory code and reference code for the source of the astrometry.

2013 11  23.22978  00 13 35.022  -10 29 40.20  21.5r 14QV441   F51  C~1vXh      
2013 11  23.23038  00 13 35.019  -10 29 39.75  21.4r 14QV441   F51  C~1vXh      
2013 11  23.24117  00 13 34.995  -10 29 39.94  21.6r 14QV441   F51  C~1vXh      
2013 11  23.24177  00 13 35.001  -10 29 40.02  21.6r 14QV441   F51  C~1vXh      
2013 11  23.25419  00 13 34.947  -10 29 40.05  21.3i 14QV441   F51  C~1vXh      
2013 11  23.25485  00 13 34.940  -10 29 40.08  21.3i 14QV441   F51  C~1vXh      
2013 11  23.26694  00 13 34.911  -10 29 40.32  21.6i 14QV441   F51  C~1vXh      
2013 11  23.26760  00 13 34.883  -10 29 40.41  21.6i 14QV441   F51  C~1vXh      
2014 08  22.52400  00 45 02.012  -08 59 28.08  21.6w 14QV441   F51  C~1vXh      
2014 08  22.53517  00 45 01.946  -08 59 29.13  21.4w 14QV441   F51  C~1vXh      
2014 08  22.54635  00 45 01.885  -08 59 30.00  21.6w 14QV441   F51  C~1vXh      
2014 08  22.55756  00 45 01.828  -08 59 30.87  21.7w 14QV441   F51  C~1vXh      
2014 09  02.44915  00 43 56.815  -09 14 50.74  21.5w 14QV441   F51  C~1vXh      
2014 09  02.45975  00 43 56.737  -09 14 51.74  21.6w 14QV441   F51  C~1vXh      
2014 09  02.47034  00 43 56.666  -09 14 52.47  21.5w 14QV441   F51  C~1vXh      
2014 09  02.48093  00 43 56.596  -09 14 53.46  21.5w 14QV441   F51  C~1vXh      
2014 09  14.44686  00 42 29.809  -09 31 49.72  21.1i 14QV441   F51  C~1vXh      
2014 09  14.45852  00 42 29.736  -09 31 50.94  21.4i 14QV441   F51  C~1vXh      
2014 09  14.47015  00 42 29.613  -09 31 51.93  21.3i 14QV441   F51  C~1vXh      
2014 09  14.48179  00 42 29.528  -09 31 52.94  20.9i 14QV441   F51  C~1vXh      
2014 09  24.45091  00 41 08.767  -09 45 30.36  21.4w 14QV441   F51  C~1vXh      
2014 09  24.46373  00 41 08.665  -09 45 31.69  21.3w 14QV441   F51  C~1vXh      
2014 09  24.47659  00 41 08.548  -09 45 32.05  21.5w 14QV441   F51  C~1vXh      
2014 12  07.20988  00 33 19.681  -10 33 27.00  21.2i 14QV441   F51  C~1vXh      
2014 12  07.22503  00 33 19.662  -10 33 26.83  21.3i 14QV441   F51  C~1vXh      
2014 12  07.23806  00 33 19.620  -10 33 26.78  20.9i 14QV441   F51  C~1vXh      
2017 09  23.36645  01 46 18.16   -09 21 34.9   21.3R 14QV441   G37  C~2LT6      
2017 09  23.45314  01 46 17.50   -09 21 42.5         14QV441   G37  C~2LT6      

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    -0.11       0.00    -0.21
  2   0.0000      0.14     0.06       0.43     0.21
  3   0.0000     -0.26     0.14       0.40     0.05
  4   0.0000     -0.21     0.22       0.29    -0.07
  5   0.0001     -0.95     0.04       0.58     0.07
  6   0.0001     -1.06    -0.04       0.60     0.08
  7   0.0001     -1.55     0.02       0.55    -0.11
  8   0.0001     -1.96    -0.37       0.64    -0.04
  9   0.7455  27799.07     0.04   -6705.75     0.06
 10   0.7455  27797.71    -0.09   -6706.29    -0.01
 11   0.7456  27796.50    -0.07   -6706.69     0.04
 12   0.7456  27795.35     0.01   -6707.12     0.07
 13   0.7754  26510.98     0.03   -7131.33     0.06
 14   0.7754  26509.49    -0.09   -7131.75     0.01
 15   0.7755  26508.20     0.00   -7131.96     0.16
 16   0.7755  26506.82    -0.00   -7132.42     0.07
 17   0.8083  24887.47    -0.06   -7506.64     0.18
 18   0.8083  24885.95     0.11   -7507.28    -0.17
 19   0.8083  24883.85    -0.31   -7507.40     0.01
 20   0.8084  24882.26    -0.22   -7507.78    -0.07
 21   0.8356  23433.97     0.37   -7740.37    -0.31
 22   0.8357  23432.01     0.35   -7740.94    -0.64
 23   0.8357  23430.27 (   0.53)  -7740.53 (   0.01)
 24   1.0376  15866.37     0.06   -7416.23     0.23
 25   1.0376  15866.19     0.12   -7415.96     0.17
 26   1.0377  15865.64    -0.21   -7415.65     0.20
 27   3.8334  79985.25     0.03  -34077.66    -0.00
 28   3.8336  79971.14    -0.05  -34079.61    -0.03

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.

14QV441    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        31.711    31.720    31.702
ecceobj         0.408     0.408     0.408
incobj         26.465    26.465    26.465
qmin           18.785    18.779    18.782
qmax           45.152    45.031    45.465
amean          31.705    31.476    31.812
amin           31.088    30.880    31.288
amax           32.068    31.965    32.415
emean           0.387     0.392     0.389
emin            0.359     0.378     0.360
emax            0.410     0.409     0.411
imean          26.321    26.162    26.341
imin           25.471    25.485    25.450
imax           27.531    26.736    27.561
excite_mean     0.589     0.590     0.590
fracstop        0.013     0.015     0.012
cjmean          2.653     2.653     2.651

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       245.9     247.2     245.9
kozaiamp         10.8      11.7      11.1