Orbit Fit and Astrometric record for 14QY441

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: 14QY441   
# Created Sat Oct 21 01:38:27 2017
# Orbit generated from Bernstein formalism
# Fitting   34 observations of   42
# Arc:   9.23y
# First observation: 2010/10/11
#  Last observation: 2015/01/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.004377   0.026830  -0.000733   0.004503   0.027061   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:   62 RMS:  6.65
# Min/Max residuals:   -13.56   17.63
# Exact a, adot, b, bdot, g, gdot:
 -2.528920E-03  2.651073E-02 -4.313974E-04  4.457161E-03  2.706125E-02  8.320432E-04
# Covariance matrix:
  1.3769E-10 -3.9031E-11  2.2759E-11 -6.5088E-12 -2.4237E-11 -9.9234E-11
 -3.9031E-11  1.1098E-11 -6.4854E-12  1.8548E-12  6.8957E-12  2.8278E-11
  2.2759E-11 -6.4854E-12  4.9820E-12 -1.2287E-12 -4.0276E-12 -1.6556E-11
 -6.5088E-12  1.8548E-12 -1.2287E-12  3.2843E-13  1.1517E-12  4.7351E-12
 -2.4237E-11  6.8957E-12 -4.0276E-12  1.1517E-12  4.3760E-12  1.7560E-11
 -9.9234E-11  2.8278E-11 -1.6556E-11  4.7351E-12  1.7560E-11  7.2191E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.673032   59.733918    0.338247   -0.059932   -0.935416  2453676.868263
# Heliocentric elements and errors
Epoch:              2453670.5000  =  2005/10/27
Mean Anomaly:          160.65730 +/-     0.273
Argument of Peri:      176.35760 +/-     0.273
Long of Asc Node:       79.66266 +/-     0.000
Inclination:            10.16572 +/-     0.000
Eccentricity:         0.05860724 +/-    0.0001
Semi-Major Axis:     35.88999604 +/-    0.0020
Time of Perihelion: 2497157.1931 +/-      59.5
Perihelion:          33.78658241 +/-    0.0029
Aphelion:            37.99340967 +/-    0.0031
Period (y)              215.0148 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.42751342 +/-    0.0011
Ecliptic Y           32.43998779 +/-    0.0027
Ecliptic Z           -2.38322691 +/-    0.0001
Ecliptic XDOT        -0.00225741 +/-    0.0000
Ecliptic YDOT         0.00144291 +/-    0.0000
Ecliptic ZDOT         0.00044464 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.88747624 +/-    0.0024
Geocenter to KBO     36.95333037 +/-    0.0029
# Hcoef:  5.61

The following table shows the complete astrometric record for 14QY441. 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 (14QY441) followed by the observatory code and reference code for the source of the astrometry.

2005 11  02.36752  03 53 26.19   +16 30 13.0   21.0R 14QY441   695  C~1waZ      
2005 11  02.45274  03 53 25.69   +16 30 10.6         14QY441   695  C~1waZ      
2005 11  03.40917  03 53 20.80   +16 29 55.5   20.0R 14QY441   695  C~1waZ      
2005 11  03.49588  03 53 20.18   +16 29 56.6         14QY441   695  C~1waZ      
2005 11  04.47337  03 53 14.78   +16 29 39.0         14QY441   695  C~1waZ      
2010 10  11.47078  04 24 37.146  +19 12 01.02  21.4w 14QY441   F51  C~1vXi      
2010 10  11.48484  04 24 37.097  +19 12 00.96  21.6w 14QY441   F51  C~1vXi      
2010 10  11.49918  04 24 37.053  +19 12 00.65  21.4w 14QY441   F51  C~1vXi      
2010 10  11.51325  04 24 37.008  +19 12 00.74  21.4w 14QY441   F51  C~1vXi      
2011 10  26.42204  04 29 45.114  +19 39 28.29  21.4w 14QY441   F51  C~1vXi      
2011 10  26.43657  04 29 45.056  +19 39 28.17  21.4w 14QY441   F51  C~1vXi      
2011 10  26.45113  04 29 44.986  +19 39 28.02  21.4w 14QY441   F51  C~1vXi      
2011 10  26.46569  04 29 44.916  +19 39 27.89  21.6w 14QY441   F51  C~1vXi      
2013 01  07.24163  04 29 25.058  +19 58 03.62  21.4w 14QY441   F51  C~1vXi      
2013 01  07.25760  04 29 24.984  +19 58 03.58  21.4w 14QY441   F51  C~1vXi      
2013 01  07.27629  04 29 24.900  +19 58 03.61  21.5w 14QY441   F51  C~1vXi      
2013 01  07.29231  04 29 24.831  +19 58 03.50  21.5w 14QY441   F51  C~1vXi      
2014 08  22.61637  04 49 23.316  +21 05 16.70  21.9w 14QY441   F51  C~1vXi      
2014 08  22.61835  04 49 23.305  +21 05 17.11  21.4w 14QY441   F51  C~1vXi      
2014 08  22.62034  04 49 23.302  +21 05 16.45  21.6w 14QY441   F51  C~1vXi      
2014 09  26.39075  04 49 46.06   +21 06 11.5   21.4R 14QY441   695  C~263Y      
2014 09  26.43556  04 49 46.00   +21 06 11.4         14QY441   695  C~263Y      
2014 09  26.48034  04 49 45.94   +21 06 11.3         14QY441   695  C~263Y      
2014 11  12.55751  04 46 59.976  +21 02 16.39  20.9i 14QY441   F51  C~1vXi      
2014 11  12.57027  04 46 59.920  +21 02 16.17  20.8i 14QY441   F51  C~1vXi      
2014 11  12.58296  04 46 59.851  +21 02 16.20  20.8i 14QY441   F51  C~1vXi      
2014 11  12.59575  04 46 59.769  +21 02 15.79  20.9i 14QY441   F51  C~1vXi      
2014 11  17.35572  04 46 34.086  +21 01 39.87  21.3w 14QY441   F51  C~1vXi      
2014 11  17.36859  04 46 34.012  +21 01 39.76  21.3w 14QY441   F51  C~1vXi      
2014 11  17.38145  04 46 33.942  +21 01 39.67  21.3w 14QY441   F51  C~1vXi      
2014 11  17.39432  04 46 33.865  +21 01 39.59  21.3w 14QY441   F51  C~1vXi      
2015 01  22.34372  04 40 50.829  +20 54 44.15  21.6w 14QY441   F51  C~1vXi      
2015 01  22.35768  04 40 50.781  +20 54 44.10  21.6w 14QY441   F51  C~1vXi      
2015 01  22.37162  04 40 50.732  +20 54 44.01  21.5w 14QY441   F51  C~1vXi      
2015 01  22.38553  04 40 50.676  +20 54 43.97  21.6w 14QY441   F51  C~1vXi      
2015 01  24.32630  04 40 44.288  +20 54 40.23  21.5w 14QY441   F51  C~1vXi      
2015 01  24.34078  04 40 44.253  +20 54 40.28  21.4w 14QY441   F51  C~1vXi      
2015 01  24.35524  04 40 44.203  +20 54 40.11  21.4w 14QY441   F51  C~1vXi      
2015 01  24.36978  04 40 44.143  +20 54 40.04  21.6w 14QY441   F51  C~1vXi      
2016 12  20.195137 04 56 04.33   +21 51 37.6   21.2V 14QY441   H21  C~24DI      
2016 12  20.205997 04 56 04.31   +21 51 37.9   21.2V 14QY441   H21  C~24DI      
2016 12  20.225506 04 56 04.17   +21 51 36.8   21.8V 14QY441   H21  C~24DI      

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 ( 524.82)      0.00 (  89.52)
  2   0.0002     -7.53 ( 523.93)     -0.84 (  88.62)
  3   0.0029    -79.47 ( 525.64)     -0.90 (  88.05)
  4   0.0031    -87.96 ( 523.94)      2.04 (  90.94)
  5   0.0058   -167.58 ( 520.17)      1.09 (  89.34)
  6   4.9394  28241.23    17.50    4507.96     4.44
  7   4.9394  28240.52    17.50    4508.01     4.50
  8   4.9394  28239.84    17.54    4507.81     4.29
  9   4.9395  28239.22    17.63    4508.01     4.48
 10   5.9796  32912.70   -13.55    5435.37    -1.98
 11   5.9797  32911.85   -13.44    5435.39    -1.99
 12   5.9797  32910.83   -13.50    5435.39    -2.00
 13   5.9797  32909.81   -13.56    5435.42    -1.99
 14   7.1810  32812.67    -9.28    6596.89    -5.22
 15   7.1811  32811.60    -9.32    6597.02    -5.18
 16   7.1811  32810.41    -9.31    6597.24    -5.06
 17   7.1812  32809.41    -9.28    6597.28    -5.10
 18   8.8029  50786.75    -3.53    8224.31    -0.76
 19   8.8029  50786.64    -3.70    8224.75    -0.32
 20   8.8029  50786.50    -3.92    8224.08    -0.99
 21   8.8981  51129.49    -0.26    8238.99     0.03
 22   8.8982  51128.59    -0.25    8238.99    -0.01
 23   8.8983  51127.69    -0.23    8239.00    -0.05
 24   9.0272  48656.02     3.94    8305.14     0.61
 25   9.0272  48655.17     4.11    8305.02     0.46
 26   9.0273  48654.16     4.11    8305.18     0.59
 27   9.0273  48652.90     3.87    8304.91     0.30
 28   9.0404  48271.60     4.27    8316.50     0.70
 29   9.0404  48270.50     4.24    8316.53     0.69
 30   9.0404  48269.46     4.27    8316.57     0.69
 31   9.0405  48268.32     4.19    8316.63     0.72
 32   9.2210  43212.80     5.97    8559.79     2.00
 33   9.2211  43212.10     5.98    8559.83     1.98
 34   9.2211  43211.38     5.96    8559.84     1.92
 35   9.2211  43210.56     5.85    8559.91     1.93
 36   9.2264  43117.50     5.90    8568.89     2.01
 37   9.2265  43117.00     6.09    8569.01     2.07
 38   9.2265  43116.25     6.04    8568.93     1.93
 39   9.2266  43115.37     5.85    8568.98     1.91
 40  11.1316  57111.73 ( 115.35)  10388.86 (  23.35)
 41  11.1317  57111.47 ( 116.04)  10389.20 (  23.65)
 42  11.1317  57109.24 ( 115.50)  10388.30 (  22.68)

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.

14QY441    quality flag:3

Type:           4:3E      4:3E      4:3E

axisobj        36.695    36.695    36.695
ecceobj         0.071     0.071     0.071
incobj         10.145    10.145    10.145
qmin           32.394    32.396    32.393
qmax           40.798    40.797    40.798
amean          36.481    36.481    36.481
amin           36.192    36.192    36.192
amax           36.789    36.790    36.789
emean           0.085     0.085     0.085
emin            0.063     0.063     0.063
emax            0.111     0.111     0.111
imean           8.168     8.169     8.167
imin            6.341     6.341     6.341
imax           11.382    11.380    11.383
excite_mean     0.166     0.166     0.166
fracstop        1.000     1.000     1.000
cjmean          2.993     2.993     2.993

libcent 0       179.8     179.8     179.9
libamp  0        33.6      33.6      33.6
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       179.8     180.0     179.7
kozaiamp        180.0     180.0     179.9