Orbit Fit and Astrometric record for 499514

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: 499514    
# Created Fri Dec 15 02:36:51 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   37 observations of   37
# Arc:   6.98y
# First observation: 2010/07/31
#  Last observation: 2017/07/24
# Chi-squared of fit:    26.58 DOF:   68 RMS:  0.15
# Min/Max residuals:    -0.32    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.366878E-05  1.924764E-02 -2.592860E-06 -2.820360E-03  2.212160E-02 -1.699479E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   25.149341  -30.639744    0.369307    0.400008   -0.852125  2455409.028576
# Heliocentric elements and errors
Epoch:              2455408.5000  =  2010/07/31
Mean Anomaly:          232.78194 +/-     0.000
Argument of Peri:      244.91156 +/-     0.000
Long of Asc Node:      219.94236 +/-     0.000
Inclination:            25.87565 +/-     0.000
Eccentricity:         0.12764446 +/-    0.0000
Semi-Major Axis:     42.40067312 +/-    0.0000
Time of Perihelion: 2491045.7212 +/-       0.0
Perihelion:          36.98846189 +/-    0.0000
Aphelion:            47.81288435 +/-    0.0000
Period (y)              276.1006 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.83283795 +/-    0.0000
Ecliptic Y          -21.65276997 +/-    0.0000
Ecliptic Z           19.21097194 +/-    0.0000
Ecliptic XDOT         0.00117884 +/-    0.0000
Ecliptic YDOT         0.00207724 +/-    0.0000
Ecliptic ZDOT        -0.00040539 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.06410365 +/-    0.0000
Geocenter to KBO     45.20477458 +/-    0.0000
# Hcoef:  5.06

The following table shows the complete astrometric record for 499514. 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 (499514) followed by the observatory code and reference code for the source of the astrometry.

2010 07  31.52781  21 30 59.194  +11 54 42.47  21.0i 499514    F51  C~1w3i      
2010 07  31.53345  21 30 59.185  +11 54 42.19  21.3i 499514    F51  C~1w3i      
2010 08  04.57903  21 30 42.233  +11 53 48.77  21.2r 499514    F51  C~1w3i      
2010 08  08.48172  21 30 25.656  +11 52 46.58  21.6g 499514    F51  C~1w3i      
2010 08  08.49297  21 30 25.604  +11 52 46.27  21.5g 499514    F51  C~1w3i      
2010 08  31.29086  21 28 49.561  +11 43 47.69  20.9r 499514    F51  C~1w3i      
2010 08  31.30229  21 28 49.520  +11 43 47.35  21.1r 499514    F51  C~1w3i      
2010 08  31.31631  21 28 49.462  +11 43 46.99  21.7g 499514    F51  C~1w3i      
2010 08  31.32824  21 28 49.410  +11 43 46.68  21.6g 499514    F51  C~1w3i      
2011 08  01.52745  21 35 24.536  +12 08 36.94  21.6g 499514    F51  C~1w3i      
2011 08  01.53734  21 35 24.486  +12 08 36.66  22.0g 499514    F51  C~1w3i      
2011 08  06.40512  21 35 04.078  +12 07 29.70  21.0r 499514    F51  C~1w3i      
2011 08  06.41474  21 35 04.038  +12 07 29.67  21.1r 499514    F51  C~1w3i      
2011 08  09.56259  21 34 50.633  +12 06 37.99  21.2i 499514    F51  C~1w3i      
2011 08  09.57248  21 34 50.595  +12 06 37.69  21.2i 499514    F51  C~1w3i      
2012 09  04.33917  21 37 28.788  +12 09 39.24  21.0i 499514    F51  C~1w3i      
2012 09  04.35068  21 37 28.741  +12 09 38.83  20.9i 499514    F51  C~1w3i      
2012 09  06.31666  21 37 20.968  +12 08 36.68  21.4g 499514    F51  C~1w3i      
2012 09  06.32745  21 37 20.932  +12 08 36.29  21.4g 499514    F51  C~1w3i      
2013 08  27.31664  21 42 33.217  +12 27 25.72  21.6g 499514    F51  C~1w3i      
2013 08  27.32784  21 42 33.157  +12 27 25.29  21.6g 499514    F51  C~1w3i      
2013 08  27.45461  21 42 32.627  +12 27 22.03  21.0r 499514    F51  C~1w3i      
2013 08  27.46525  21 42 32.598  +12 27 21.54  21.0r 499514    F51  C~1w3i      
2013 09  05.33367  21 41 56.151  +12 23 00.37  21.1r 499514    F51  C~1w3i      
2013 09  05.34395  21 41 56.104  +12 23 00.22  21.3r 499514    F51  C~1w3i      
2013 09  09.28786  21 41 40.581  +12 20 52.91  21.0i 499514    F51  C~1w3i      
2013 09  09.29983  21 41 40.531  +12 20 52.44  20.9i 499514    F51  C~1w3i      
2013 09  14.27627  21 41 21.764  +12 18 03.43  21.1i 499514    F51  C~1w3i      
2013 09  14.28724  21 41 21.733  +12 18 03.05  21.0i 499514    F51  C~1w3i      
2013 09  22.28222  21 40 53.840  +12 13 15.10  21.0i 499514    F51  C~1w3i      
2013 09  22.28354  21 40 53.827  +12 13 15.22  20.9i 499514    F51  C~1w3i      
2013 09  22.29371  21 40 53.808  +12 13 14.70  20.9i 499514    F51  C~1w3i      
2013 09  22.29504  21 40 53.796  +12 13 14.72  20.9i 499514    F51  C~1w3i      
2017 07  21.35920  22 03 21.96   +13 28 48.7   20.8R 499514    H36  C~2IBf      
2017 07  21.39523  22 03 21.85   +13 28 48.4   20.9R 499514    H36  C~2IBf      
2017 07  24.29090  22 03 11.27   +13 28 38.5   21.4R 499514    734  C~2IBf      
2017 07  24.38702  22 03 10.88   +13 28 37.6   20.8R 499514    734  C~2IBf      

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    -0.16       0.00    -0.20
  2   0.0000      0.00     0.25       0.00    -0.08
  3   0.0111      0.00     0.33       0.00     0.24
  4   0.0218      0.00     0.07       0.00    -0.11
  5   0.0218      0.00     0.02       0.00    -0.22
  6   0.0842      0.00    -0.01       0.00    -0.02
  7   0.0843      0.00     0.08       0.00    -0.02
  8   0.0843      0.00     0.07       0.00     0.03
  9   0.0843      0.00     0.02       0.00     0.07
 10   1.0021      0.00     0.07       0.00     0.29
 11   1.0021      0.00    -0.05       0.00     0.13
 12   1.0154      0.00     0.03       0.00     0.04
 13   1.0154      0.00     0.05       0.00     0.16
 14   1.0241      0.00    -0.32       0.00    -0.15
 15   1.0241      0.00    -0.25       0.00    -0.28
 16   2.0967      0.00     0.15       0.00    -0.11
 17   2.0967      0.00     0.15       0.00    -0.16
 18   2.1021      0.00    -0.08       0.00    -0.08
 19   2.1021      0.00     0.03       0.00    -0.13
 20   3.0740      0.00     0.08       0.00     0.24
 21   3.0741      0.00    -0.10       0.00     0.11
 22   3.0744      0.00     0.08       0.00     0.30
 23   3.0744      0.00     0.33       0.00     0.10
 24   3.0987      0.00     0.19       0.00    -0.01
 25   3.0987      0.00     0.11       0.00     0.16
 26   3.1095      0.00    -0.01       0.00     0.13
 27   3.1096      0.00    -0.05       0.00     0.06
 28   3.1232      0.00     0.03       0.00     0.06
 29   3.1232      0.00     0.18       0.00     0.06
 30   3.1451      0.00     0.04       0.00    -0.12
 31   3.1451      0.00    -0.08       0.00     0.05
 32   3.1451      0.00     0.14       0.00    -0.10
 33   3.1452      0.00     0.03       0.00    -0.03
 34   6.9728      0.00    -0.18       0.00     0.03
 35   6.9729      0.00     0.15       0.00    -0.17
 36   6.9809      0.00     0.29       0.00     0.24
 37   6.9811      0.00    -0.10       0.00    -0.21

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.

499514    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        42.285    42.285    42.285
ecceobj         0.131     0.130     0.131
incobj         25.878    25.878    25.878
qmin           33.443    33.480    33.425
qmax           51.640    51.573    51.671
amean          42.327    42.327    42.326
amin           41.878    41.884    41.881
amax           42.843    42.824    42.835
emean           0.152     0.148     0.149
emin            0.100     0.102     0.099
emax            0.209     0.209     0.209
imean          26.304    26.401    26.341
imin           25.361    25.529    25.136
imax           27.048    27.112    27.055
excite_mean     0.469     0.469     0.469
fracstop        1.000     1.000     1.000
cjmean          2.812     2.812     2.812

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       270.0     270.5     270.4
kozaiamp         35.0      34.7      35.2