Orbit Fit and Astrometric record for 472262

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: 472262    
# Created Fri Oct 20 01:36:54 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   81 observations of   81
# Arc:   5.27y
# First observation: 2010/10/31
#  Last observation: 2016/02/09
# Chi-squared of fit:    97.30 DOF:  156 RMS:  0.19
# Min/Max residuals:    -0.29    1.96
# Exact a, adot, b, bdot, g, gdot:
  1.928978E-05  3.758344E-02 -4.154277E-06 -7.479574E-03  3.100647E-02 -8.963300E-04
# 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
  -18.091944   21.127364   -0.285385   -0.294462   -0.901310  2455500.874006
# Heliocentric elements and errors
Epoch:              2455500.5000  =  2010/10/31
Mean Anomaly:          357.81884 +/-     0.000
Argument of Peri:      242.93687 +/-     0.000
Long of Asc Node:      144.53944 +/-     0.000
Inclination:            20.67479 +/-     0.000
Eccentricity:         0.28836946 +/-    0.0000
Semi-Major Axis:     46.56818751 +/-    0.0000
Time of Perihelion: 2456203.7631 +/-       0.0
Perihelion:          33.13934424 +/-    0.0000
Aphelion:            59.99703078 +/-    0.0000
Period (y)              317.7914 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.38163394 +/-    0.0000
Ecliptic Y           11.65745047 +/-    0.0000
Ecliptic Z          -10.01555325 +/-    0.0000
Ecliptic XDOT        -0.00145779 +/-    0.0000
Ecliptic YDOT         0.00300082 +/-    0.0000
Ecliptic ZDOT        -0.00060322 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.15853650 +/-    0.0000
Geocenter to KBO     32.25138572 +/-    0.0000
# Hcoef:  6.94

The following table shows the complete astrometric record for 472262. 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 (472262) followed by the observatory code and reference code for the source of the astrometry.

2010 10  31.37324  01 45 07.755  -08 32 51.21  21.7w 472262    F51  C~1vXh      
2010 10  31.40251  01 45 07.593  -08 32 51.80  21.6w 472262    F51  C~1vXh      
2010 10  31.41662  01 45 07.518  -08 32 52.38  21.6w 472262    F51  C~1vXh      
2011 09  25.46887  01 57 03.691  -07 45 14.28  21.6w 472262    F51  C~1vXh      
2011 09  25.48153  01 57 03.631  -07 45 14.71  21.7w 472262    F51  C~1vXh      
2011 09  25.49417  01 57 03.577  -07 45 15.22  21.6w 472262    F51  C~1vXh      
2011 09  25.50681  01 57 03.512  -07 45 15.82  21.6w 472262    F51  C~1vXh      
2012 10  06.47455  02 04 48.751  -07 27 46.67  21.3r 472262    F51  C~1vXh      
2012 10  06.48554  02 04 48.704  -07 27 47.18  21.6r 472262    F51  C~1vXh      
2012 10  06.49782  02 04 48.641  -07 27 47.73  21.4i 472262    F51  C~1vXh      
2012 10  06.50983  02 04 48.566  -07 27 48.12  21.2i 472262    F51  C~1vXh      
2012 11  16.34390  02 01 07.345  -07 47 47.63  22.0w 472262    F51  C~1vXh      
2012 11  16.35773  02 01 07.279  -07 47 47.89  22.1w 472262    F51  C~1vXh      
2012 11  16.37152  02 01 07.202  -07 47 48.22  21.9w 472262    F51  C~1vXh      
2012 11  16.38540  02 01 07.136  -07 47 48.60  22.5w 472262    F51  C~1vXh      
2013 10  13.247847 02 12 56.58   -07 05 41.0   21.4i 472262    W84  C~1C6h      
2013 10  13.252006 02 12 56.56   -07 05 41.1   21.5z 472262    W84  C~1C6h      
2014 08  18.268536 02 24 41.97   -05 57 43.8   23.1g 472262    W84  C~1C6h      
2014 08  18.270752 02 24 41.96   -05 57 43.8   21.8r 472262    W84  C~1C6h      
2014 08  18.273102 02 24 41.97   -05 57 43.9   21.5i 472262    W84  C~1C6h      
2014 08  18.276910 02 24 41.96   -05 57 44.1   21.4z 472262    W84  C~1C6h      
2014 08  22.407436 02 24 38.50   -06 00 34.8   23.0g 472262    W84  C~1C6h      
2014 08  22.409641 02 24 38.50   -06 00 35.0   22.0r 472262    W84  C~1C6h      
2014 08  22.412002 02 24 38.49   -06 00 35.0   21.5i 472262    W84  C~1C6h      
2014 08  22.415822 02 24 38.49   -06 00 35.1   21.4z 472262    W84  C~1C6h      
2014 08  22.56947  02 24 38.348  -06 00 42.25  22.0w 472262    F51  C~1vXh      
2014 08  22.58214  02 24 38.325  -06 00 42.50  22.1w 472262    F51  C~1vXh      
2014 08  22.60750  02 24 38.300  -06 00 43.62  22.1w 472262    F51  C~1vXh      
2014 08  23.58759  02 24 37.187  -06 01 25.02  22.1w 472262    F51  C~1vXh      
2014 08  23.59757  02 24 37.178  -06 01 25.30  22.4w 472262    F51  C~1vXh      
2014 08  23.60761  02 24 37.153  -06 01 25.86  22.2w 472262    F51  C~1vXh      
2014 08  23.61759  02 24 37.152  -06 01 26.34  22.2w 472262    F51  C~1vXh      
2014 09  04.221649 02 24 16.08   -06 09 56.1   22.8g 472262    W84  C~1C6h      
2014 09  04.223866 02 24 16.07   -06 09 56.2   21.8r 472262    W84  C~1C6h      
2014 09  04.226204 02 24 16.07   -06 09 56.4   21.4i 472262    W84  C~1C6h      
2014 09  15.292888 02 23 43.49   -06 18 21.2   22.8g 472262    W84  C~1C6h      
2014 09  15.295104 02 23 43.47   -06 18 21.3   22.1r 472262    W84  C~1C6h      
2014 09  15.297465 02 23 43.47   -06 18 21.3   21.5i 472262    W84  C~1C6h      
2014 09  15.301273 02 23 43.45   -06 18 21.5   21.5z 472262    W84  C~1C6i      
2014 09  24.50716  02 23 08.113  -06 25 20.82  21.8w 472262    F51  C~1vXh      
2014 09  24.51995  02 23 08.058  -06 25 21.41  22.2w 472262    F51  C~1vXh      
2014 09  24.53276  02 23 08.019  -06 25 21.69  22.1w 472262    F51  C~1vXh      
2014 10  01.164039 02 22 38.59   -06 30 15.2   22.2r 472262    W84  C~1C6i      
2014 10  01.166400 02 22 38.58   -06 30 15.3   21.7i 472262    W84  C~1C6i      
2014 10  01.170220 02 22 38.56   -06 30 15.5   21.3z 472262    W84  C~1C6i      
2014 10  04.369861 02 22 23.32   -06 32 33.3   21.7r 472262    W84  C~1C6i      
2014 10  04.372222 02 22 23.33   -06 32 33.1   21.2i 472262    W84  C~1C6i      
2014 10  06.364167 02 22 13.55   -06 33 57.1   21.7r 472262    W84  C~1C6i      
2014 10  06.366516 02 22 13.53   -06 33 57.3   21.4i 472262    W84  C~1C6i      
2014 10  19.113177 02 21 06.82   -06 42 16.7   22.7g 472262    W84  C~1C6i      
2014 10  19.115382 02 21 06.82   -06 42 16.8   21.8r 472262    W84  C~1C6i      
2014 10  26.204462 02 20 27.55   -06 46 18.7   22.6g 472262    W84  C~1C6i      
2014 10  26.206678 02 20 27.53   -06 46 18.7   21.8r 472262    W84  C~1C6i      
2014 10  26.209039 02 20 27.52   -06 46 18.8   21.3i 472262    W84  C~1C6i      
2014 10  26.212824 02 20 27.50   -06 46 18.9   21.2z 472262    W84  C~1C6i      
2014 10  30.227124 02 20 04.98   -06 48 21.7   22.9g 472262    W84  C~1C6i      
2014 10  30.229329 02 20 04.96   -06 48 22.0   21.9r 472262    W84  C~1C6i      
2014 10  30.231678 02 20 04.95   -06 48 22.0   21.5i 472262    W84  C~1C6i      
2014 11  25.35881  02 17 44.557  -06 56 47.25  21.8w 472262    F51  C~1vXh      
2014 11  25.37133  02 17 44.475  -06 56 47.30  21.9w 472262    F51  C~1vXh      
2014 11  25.38385  02 17 44.405  -06 56 47.37  22.1w 472262    F51  C~1vXh      
2014 11  25.39634  02 17 44.367  -06 56 47.41  22.1w 472262    F51  C~1vXh      
2015 11  20.025318 02 26 50.11   -06 28 40.9   23.3g 472262    W84  C~1h5p      
2015 11  20.027535 02 26 50.08   -06 28 40.8   22.2r 472262    W84  C~1h5p      
2015 11  20.029896 02 26 50.07   -06 28 40.9   21.7i 472262    W84  C~1h5p      
2015 11  20.033866 02 26 50.05   -06 28 40.9   21.3z 472262    W84  C~1h5p      
2015 11  30.096753 02 25 59.39   -06 30 18.4   22.7g 472262    W84  C~1h5p      
2015 11  30.098958 02 25 59.38   -06 30 18.4   21.7r 472262    W84  C~1h5p      
2015 11  30.101308 02 25 59.37   -06 30 18.4   21.4i 472262    W84  C~1h5p      
2015 11  30.105289 02 25 59.35   -06 30 18.4   21.2z 472262    W84  C~1h5p      
2015 12  10.054693 02 25 15.33   -06 30 26.6   22.7g 472262    W84  C~1h5p      
2015 12  10.056910 02 25 15.31   -06 30 26.6   21.8r 472262    W84  C~1h5p      
2015 12  10.059282 02 25 15.31   -06 30 26.6   21.4i 472262    W84  C~1h5p      
2015 12  10.063252 02 25 15.29   -06 30 26.6   21.1z 472262    W84  C~1h5p      
2015 12  29.108084 02 24 14.38   -06 26 35.7   22.7g 472262    W84  C~1h5p      
2015 12  29.110289 02 24 14.38   -06 26 35.7   21.9r 472262    W84  C~1h5p      
2015 12  29.112639 02 24 14.37   -06 26 35.6   21.6i 472262    W84  C~1h5p      
2015 12  29.116609 02 24 14.36   -06 26 35.5   21.2z 472262    W84  C~1h5p      
2016 01  16.068750 02 23 51.73   -06 18 23.1   21.2z 472262    W84  C~1jjk      
2016 02  09.064404 02 24 20.49   -06 01 56.9   23.0g 472262    W84  C~1l3u      
2016 02  09.066609 02 24 20.50   -06 01 56.7   21.8r 472262    W84  C~1l3u      

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     1.96
  2   0.0001      0.00     0.02       0.00     0.25
  3   0.0001      0.00     0.06       0.00     0.04
  4   0.9010      0.00    -0.05       0.00    -0.08
  5   0.9010      0.00    -0.04       0.00     0.06
  6   0.9011      0.00     0.05       0.00     0.12
  7   0.9011      0.00    -0.02       0.00     0.08
  8   1.9332      0.00     0.18       0.00    -0.06
  9   1.9332      0.00     0.34       0.00    -0.12
 10   1.9333      0.00     0.37       0.00    -0.16
 11   1.9333      0.00     0.19       0.00    -0.05
 12   2.0451      0.00    -0.04       0.00     0.09
 13   2.0451      0.00     0.04       0.00     0.03
 14   2.0452      0.00    -0.04       0.00    -0.11
 15   2.0452      0.00     0.04       0.00    -0.29
 16   2.9511      0.00     0.19       0.00     0.12
 17   2.9511      0.00     0.23       0.00     0.18
 18   3.7971      0.00     0.08       0.00     0.02
 19   3.7971      0.00    -0.05       0.00     0.11
 20   3.7971      0.00     0.12       0.00     0.10
 21   3.7971      0.00     0.01       0.00     0.06
 22   3.8084      0.00    -0.01       0.00     0.12
 23   3.8085      0.00     0.03       0.00     0.02
 24   3.8085      0.00    -0.08       0.00     0.12
 25   3.8085      0.00    -0.01       0.00     0.18
 26   3.8089      0.00     0.20       0.00    -0.28
 27   3.8089      0.00     0.08       0.00     0.01
 28   3.8090      0.00     0.16       0.00    -0.04
 29   3.8117      0.00     0.17       0.00     0.00
 30   3.8117      0.00     0.23       0.00     0.15
 31   3.8117      0.00     0.05       0.00     0.01
 32   3.8118      0.00     0.23       0.00    -0.04
 33   3.8435      0.00    -0.18       0.00    -0.02
 34   3.8435      0.00    -0.25       0.00    -0.02
 35   3.8435      0.00    -0.16       0.00    -0.12
 36   3.8738      0.00     0.04       0.00    -0.05
 37   3.8738      0.00    -0.15       0.00    -0.05
 38   3.8739      0.00    -0.02       0.00     0.06
 39   3.8739      0.00    -0.12       0.00     0.03
 40   3.8991      0.00    -0.03       0.00    -0.07
 41   3.8991      0.00    -0.03       0.00    -0.09
 42   3.8991      0.00     0.22       0.00     0.21
 43   3.9173      0.00     0.11       0.00     0.08
 44   3.9173      0.00     0.13       0.00     0.09
 45   3.9173      0.00     0.10       0.00     0.05
 46   3.9261      0.00    -0.06       0.00    -0.16
 47   3.9261      0.00     0.26       0.00     0.14
 48   3.9315      0.00    -0.02       0.00     0.14
 49   3.9315      0.00    -0.14       0.00     0.04
 50   3.9664      0.00    -0.18       0.00     0.08
 51   3.9664      0.00    -0.00       0.00     0.06
 52   3.9858      0.00     0.05       0.00    -0.04
 53   3.9859      0.00    -0.06       0.00     0.03
 54   3.9859      0.00    -0.01       0.00     0.00
 55   3.9859      0.00     0.02       0.00     0.03
 56   3.9969      0.00    -0.02       0.00     0.25
 57   3.9969      0.00    -0.14       0.00     0.01
 58   3.9969      0.00    -0.08       0.00     0.08
 59   4.0684      0.00     0.24       0.00     0.06
 60   4.0684      0.00    -0.05       0.00     0.12
 61   4.0685      0.00    -0.16       0.00     0.15
 62   4.0685      0.00     0.20       0.00     0.22
 63   5.0531      0.00     0.44       0.00    -0.04
 64   5.0531      0.00     0.17       0.00     0.09
 65   5.0531      0.00     0.21       0.00     0.03
 66   5.0531      0.00     0.23       0.00     0.08
 67   5.0807      0.00     0.06       0.00     0.03
 68   5.0807      0.00     0.07       0.00     0.05
 69   5.0807      0.00     0.10       0.00     0.06
 70   5.0807      0.00     0.09       0.00     0.08
 71   5.1080      0.00     0.04       0.00     0.03
 72   5.1080      0.00    -0.13       0.00     0.02
 73   5.1080      0.00     0.02       0.00     0.01
 74   5.1080      0.00    -0.03       0.00    -0.01
 75   5.1601      0.00    -0.03       0.00    -0.11
 76   5.1601      0.00     0.05       0.00    -0.15
 77   5.1601      0.00    -0.02       0.00    -0.10
 78   5.1601      0.00    -0.03       0.00    -0.08
 79   5.2093      0.00    -0.02       0.00    -0.15
 80   5.2750      0.00     0.05       0.00    -0.05
 81   5.2750      0.00     0.11       0.00     0.05

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.

472262    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        46.680    46.680    46.680
ecceobj         0.290     0.290     0.290
incobj         20.673    20.673    20.673
qmin           32.401    32.178    31.971
qmax           62.013    60.464    62.257
amean          46.362    45.724    46.137
amin           45.515    44.993    45.532
amax           47.430    46.895    47.389
emean           0.278     0.269     0.283
emin            0.250     0.239     0.258
emax            0.308     0.294     0.315
imean          19.929    19.877    19.535
imin           18.993    18.766    18.871
imax           20.854    20.904    20.354
excite_mean     0.440     0.434     0.438
fracstop        1.000     1.000     1.000
cjmean          2.890     2.890     2.890

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       181.7     188.2     188.2
kozaiamp        179.9     180.0     180.0