Orbit Fit and Astrometric record for 13QO95

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: 13QO95    
# Created Sat Oct 21 01:38:17 2017
# Orbit generated from Bernstein formalism
# Fitting   55 observations of   55
# Arc:   2.32y
# First observation: 2013/08/09
#  Last observation: 2015/12/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000056   0.026380  -0.000014   0.005876   0.026318   0.000000
# Chi-squared of fit:    18.43 DOF:  104 RMS:  0.10
# Min/Max residuals:    -0.20    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.565816E-05  2.609250E-02  3.701887E-06  5.813534E-03  2.603455E-02  5.357025E-04
# Covariance matrix:
  6.3261E-14 -2.1907E-14  1.0416E-14 -7.7927E-15  6.4738E-14 -8.0145E-13
 -2.1907E-14  3.3461E-12 -3.9094E-14  1.1368E-12  1.2518E-12  1.2755E-10
  1.0416E-14 -3.9094E-14  3.9984E-14 -4.5512E-14  8.6076E-15 -1.9239E-12
 -7.7927E-15  1.1368E-12 -4.5512E-14  4.8335E-13  4.1377E-13  4.4821E-11
  6.4738E-14  1.2518E-12  8.6076E-15  4.1377E-13  6.2066E-13  4.6593E-11
 -8.0145E-13  1.2755E-10 -1.9239E-12  4.4821E-11  4.6593E-11  5.0265E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.911999   31.248259    0.978026   -0.079537   -0.261730  2456514.100228
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          350.43829 +/-     4.090
Argument of Peri:      315.00152 +/-     4.399
Long of Asc Node:       83.20403 +/-     0.002
Inclination:            20.57964 +/-     0.001
Eccentricity:         0.03558164 +/-    0.0003
Semi-Major Axis:     40.09102087 +/-    0.0064
Time of Perihelion: 2458973.1470 +/-    1053.3
Perihelion:          38.66451669 +/-    0.0133
Aphelion:            41.51752506 +/-    0.0135
Period (y)              253.8510 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.15887374 +/-    0.0010
Ecliptic Y           18.37242529 +/-    0.0006
Ecliptic Z          -11.17354552 +/-    0.0003
Ecliptic XDOT        -0.00123151 +/-    0.0000
Ecliptic YDOT         0.00246521 +/-    0.0000
Ecliptic ZDOT         0.00056868 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.68575048 +/-    0.0008
Geocenter to KBO     38.41050208 +/-    0.0012
# Hcoef:  7.21

The following table shows the complete astrometric record for 13QO95. 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 (13QO95) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.59945  02 19 41.197  -03 59 02.00  22.0i 13QO95    F51  C~17Lb      
2013 08  09.60535  02 19 41.197  -03 59 02.05  22.4i 13QO95    F51  C~17Lb      
2013 08  09.60830  02 19 41.197  -03 59 02.21  22.2i 13QO95    F51  C~17Lb      
2013 08  09.61419  02 19 41.184  -03 59 02.38  22.3i 13QO95    F51  C~17Lb      
2013 08  09.62008  02 19 41.191  -03 59 02.58  22.2i 13QO95    F51  C~17Lb      
2013 08  30.204831 02 19 17.59   -04 08 40.4   24.5g 13QO95    W84  C~16e5      
2013 08  30.207027 02 19 17.59   -04 08 40.7   23.3r 13QO95    W84  C~16e5      
2013 08  30.209370 02 19 17.57   -04 08 40.7   22.5i 13QO95    W84  C~16e5      
2013 08  30.213185 02 19 17.56   -04 08 40.7   22.2z 13QO95    W84  C~16e5      
2013 09  03.60287  02 19 07.552  -04 10 59.00  22.3i 13QO95    F51  C~17Lb      
2013 09  03.60582  02 19 07.540  -04 10 58.93  22.1i 13QO95    F51  C~17Lb      
2013 09  03.62055  02 19 07.506  -04 10 59.38  22.3i 13QO95    F51  C~17Lb      
2013 09  03.62351  02 19 07.502  -04 10 59.55  22.1i 13QO95    F51  C~17Lb      
2013 09  08.325221 02 18 54.97   -04 13 30.0   23.6g 13QO95    W84  C~16e5      
2013 09  08.327441 02 18 54.95   -04 13 30.1   22.7r 13QO95    W84  C~16e5      
2013 09  08.329794 02 18 54.95   -04 13 30.2   22.3i 13QO95    W84  C~16e5      
2013 09  08.333629 02 18 54.93   -04 13 30.5   22.0z 13QO95    W84  C~16e5      
2013 09  12.213467 02 18 43.26   -04 15 36.3   23.7g 13QO95    W84  C~16e5      
2013 09  12.215694 02 18 43.25   -04 15 36.5   22.7r 13QO95    W84  C~16e5      
2013 09  12.218050 02 18 43.24   -04 15 36.6   22.3i 13QO95    W84  C~16e5      
2013 09  12.221878 02 18 43.23   -04 15 36.7   21.8z 13QO95    W84  C~16e5      
2013 09  16.296385 02 18 29.74   -04 17 49.9   22.4r 13QO95    W84  C~16e5      
2013 09  16.298752 02 18 29.71   -04 17 50.1   22.3i 13QO95    W84  C~16e5      
2013 09  24.170359 02 18 00.40   -04 22 06.3   23.0r 13QO95    W84  C~16e5      
2013 09  24.172716 02 18 00.38   -04 22 06.3   21.8i 13QO95    W84  C~16e5      
2013 09  24.175360 02 18 00.37   -04 22 06.5   22.1z 13QO95    W84  C~16e5      
2013 09  24.176517 02 18 00.37   -04 22 06.5   22.1z 13QO95    W84  C~1769      
2013 09  24.178023 02 18 00.38   -04 22 06.6         13QO95    W84  C~16e5      
2013 09  28.260357 02 17 43.61   -04 24 17.3   24.0g 13QO95    W84  C~16e5      
2013 09  28.262580 02 17 43.61   -04 24 17.6   22.8r 13QO95    W84  C~16e5      
2013 09  28.264936 02 17 43.59   -04 24 17.6   22.4i 13QO95    W84  C~16e5      
2013 09  28.268738 02 17 43.58   -04 24 17.8   22.1z 13QO95    W84  C~16e5      
2013 10  10.137193 02 16 50.07   -04 30 20.6   23.2g 13QO95    W84  C~1769      
2013 10  10.139398 02 16 50.06   -04 30 20.8   22.6r 13QO95    W84  C~1769      
2013 10  10.141771 02 16 50.05   -04 30 20.8   22.1i 13QO95    W84  C~1769      
2013 10  10.145579 02 16 50.02   -04 30 21.0   21.8z 13QO95    W84  C~1769      
2013 10  14.130985 02 16 30.80   -04 32 14.2   22.3i 13QO95    W84  C~16e5      
2013 10  14.133629 02 16 30.77   -04 32 14.3   21.7z 13QO95    W84  C~16e5      
2013 10  26.077748 02 15 30.91   -04 37 17.8   23.7g 13QO95    W84  C~16e5      
2013 10  26.079976 02 15 30.91   -04 37 17.7   22.7r 13QO95    W84  C~16e5      
2013 10  26.082342 02 15 30.91   -04 37 17.6         13QO95    W84  C~16e5      
2013 10  26.084990 02 15 30.88   -04 37 18.0   22.1z 13QO95    W84  C~16e5      
2013 10  26.086148 02 15 30.88   -04 37 18.0   22.1z 13QO95    W84  C~1769      
2013 10  30.087959 02 15 10.46   -04 38 45.0   21.6i 13QO95    W84  C~16e5      
2013 10  30.090599 02 15 10.44   -04 38 45.3   21.7z 13QO95    W84  C~16e5      
2013 10  30.091756 02 15 10.44   -04 38 45.3   21.7z 13QO95    W84  C~1769      
2014 08  07.290188 02 24 51.63   -03 08 41.6         13QO95    W84  C~17Lb      
2014 08  07.336639 02 24 51.63   -03 08 42.4         13QO95    W84  C~17Lb      
2014 08  09.333684 02 24 51.84   -03 09 28.2         13QO95    W84  C~17Lb      
2014 08  09.433292 02 24 51.83   -03 09 30.2         13QO95    W84  C~17Lb      
2014 10  01.369086 02 22 47.35   -03 35 40.1         13QO95    W84  C~1C6X      
2014 10  01.369097 02 22 47.35   -03 35 40.1         13QO95    W84  C~1C6X      
2015 11  22.124236 02 23 50.36   -03 04 04.7   22.1z 13QO95    W84  C~1h5k      
2015 12  05.180000 02 22 52.73   -03 04 58.7   22.3i 13QO95    W84  C~1h5k      
2015 12  05.181366 02 22 52.71   -03 04 58.7   23.0r 13QO95    W84  C~1h5k      

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     0.04       0.00    -0.04
  2   0.0000     -0.02     0.09      -0.05     0.05
  3   0.0000     -0.07     0.07      -0.20    -0.04
  4   0.0000     -0.31    -0.10      -0.29    -0.01
  5   0.0001     -0.28     0.01      -0.51    -0.10
  6   0.0564   -529.21     0.05    -423.38     0.18
  7   0.0564   -529.31     0.03    -423.66    -0.06
  8   0.0564   -529.59    -0.15    -423.56     0.08
  9   0.0564   -529.73    -0.14    -423.51     0.20
 10   0.0685   -717.62    -0.04    -502.51    -0.20
 11   0.0685   -717.77    -0.05    -502.39    -0.03
 12   0.0685   -718.40     0.01    -502.64    -0.03
 13   0.0685   -718.51     0.03    -502.78    -0.12
 14   0.0814   -946.04     0.14    -580.36     0.03
 15   0.0814   -946.35    -0.06    -580.35     0.07
 16   0.0814   -946.38     0.03    -580.44     0.01
 17   0.0814   -946.77    -0.15    -580.62    -0.11
 18   0.0920  -1153.76     0.07    -639.44     0.12
 19   0.0920  -1153.97    -0.01    -639.57     0.01
 20   0.0920  -1154.14    -0.05    -639.62     0.00
 21   0.0921  -1154.32    -0.01    -639.66     0.02
 22   0.1032  -1389.41     0.20    -696.18    -0.11
 23   0.1032  -1389.90    -0.15    -696.21    -0.12
 24   0.1248  -1889.37     0.05    -787.86    -0.04
 25   0.1248  -1889.65    -0.07    -787.76     0.08
 26   0.1248  -1889.86    -0.10    -787.89    -0.03
 27   0.1248  -1889.86    -0.02    -787.89    -0.02
 28   0.1248  -1889.75     0.19    -788.04    -0.15
 29   0.1360  -2170.11    -0.06    -825.58     0.16
 30   0.1360  -2170.21    -0.00    -825.86    -0.10
 31   0.1360  -2170.49    -0.12    -825.76     0.02
 32   0.1360  -2170.70    -0.05    -825.90    -0.09
 33   0.1685  -3046.77     0.06    -894.88     0.08
 34   0.1685  -3046.97     0.02    -895.02    -0.05
 35   0.1685  -3047.11     0.06    -894.97     0.01
 36   0.1685  -3047.60    -0.13    -895.00    -0.01
 37   0.1794  -3356.45     0.09    -903.76     0.01
 38   0.1794  -3356.91    -0.16    -903.70     0.07
 39   0.2121  -4302.15    -0.18    -885.08    -0.01
 40   0.2121  -4302.11     0.04    -884.98     0.07
 41   0.2121  -4302.08     0.26    -884.89     0.15
 42   0.2121  -4302.64    -0.09    -885.11    -0.08
 43   0.2121  -4302.64     0.01    -885.11    -0.09
 44   0.2231  -4619.49     0.19    -863.29     0.12
 45   0.2231  -4619.87     0.01    -863.47    -0.08
 46   0.2231  -4619.87     0.11    -863.47    -0.09
 47   0.9930   5400.92     0.09    1251.56     0.13
 48   0.9931   5400.65     0.08    1250.81     0.38
 49   0.9986   5387.92    -0.03    1206.68    -0.18
 50   0.9989   5387.09     0.04    1204.85     0.11
 51   1.1438   3097.60    -0.07     366.75    -0.00
 52   1.1438   3097.60    -0.07     366.75    -0.00
 53   2.2848   4632.88     0.09    1825.81    -0.14
 54   2.3205   3802.85     0.05    2070.12    -0.06
 55   2.3206   3802.57    -0.16    2070.22     0.02

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.

13QO95    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.288    40.324    40.257
ecceobj         0.040     0.041     0.040
incobj         20.589    20.588    20.590
qmin           37.211    37.773    37.678
qmax           43.049    42.503    42.617
amean          40.036    40.047    39.981
amin           39.642    39.741    39.637
amax           40.371    40.359    40.319
emean           0.048     0.037     0.032
emin            0.019     0.020     0.008
emax            0.068     0.054     0.058
imean          18.725    18.710    18.790
imin           17.910    17.934    17.892
imax           19.614    19.543    19.733
excite_mean     0.325     0.323     0.324
fracstop        1.000     1.000     1.000
cjmean          2.934     2.935     2.934

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       177.3     176.7     179.5
kozaiamp        179.9     179.9     180.0