Orbit Fit and Astrometric record for 05UN524

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: 05UN524   
# Created Tue Dec 12 02:37:30 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   27 observations of   27
# Arc:  11.25y
# First observation: 2003/10/23
#  Last observation: 2015/01/22
# Chi-squared of fit:    77.01 DOF:   48 RMS:  0.30
# Min/Max residuals:    -1.11    0.76
# Exact a, adot, b, bdot, g, gdot:
  2.217274E-05  7.422652E-02  6.753613E-06  2.367691E-02  5.324434E-02 -7.654176E-03
# Covariance matrix:
  3.3485E-13 -1.7318E-13  8.4165E-14 -6.8674E-14  4.3308E-13 -2.0454E-13
 -1.7318E-13  1.1195E-13 -5.6149E-14  4.5655E-14 -2.7124E-13  1.3471E-13
  8.4165E-14 -5.6149E-14  1.1867E-13 -3.3568E-14  1.4716E-13 -7.0104E-14
 -6.8674E-14  4.5655E-14 -3.3568E-14  2.1334E-14 -1.2234E-13  5.7397E-14
  4.3308E-13 -2.7124E-13  1.4716E-13 -1.2234E-13  1.0085E-12 -3.8246E-13
 -2.0454E-13  1.3471E-13 -7.0104E-14  5.7397E-14 -3.8246E-13  1.7252E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.809343   34.156572    0.088218   -0.031296   -0.991815  2452935.709503
# Heliocentric elements and errors
Epoch:              2452936.5000  =  2003/10/24
Mean Anomaly:          314.47087 +/-     0.014
Argument of Peri:       51.95771 +/-     0.019
Long of Asc Node:       39.27904 +/-     0.000
Inclination:            17.79034 +/-     0.000
Eccentricity:         0.13147754 +/-    0.0000
Semi-Major Axis:     21.53829856 +/-    0.0022
Time of Perihelion: 2457553.9516 +/-       5.1
Perihelion:          18.70649611 +/-    0.0021
Aphelion:            24.37010101 +/-    0.0027
Period (y)               99.9598 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.40125637 +/-    0.0003
Ecliptic Y           11.02739983 +/-    0.0002
Ecliptic Z           -0.59285533 +/-    0.0000
Ecliptic XDOT        -0.00244140 +/-    0.0000
Ecliptic YDOT         0.00295307 +/-    0.0000
Ecliptic ZDOT         0.00122946 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   19.77265797 +/-    0.0003
Geocenter to KBO     18.78141306 +/-    0.0004
# Hcoef:  9.27

The following table shows the complete astrometric record for 05UN524. 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 (05UN524) followed by the observatory code and reference code for the source of the astrometry.

2003 10  23.20876  02 10 06.05   +11 12 04.3   21.0R 05UN524   695  Cj5825      
2003 10  23.30309  02 10 05.12   +11 12 00.8         05UN524   695  Cj5825      
2003 11  19.10260  02 05 49.90   +10 56 21.6         05UN524   691  Ck3858      
2003 11  19.13070  02 05 49.64   +10 56 20.3         05UN524   691  Ck3858      
2003 11  19.15774  02 05 49.39   +10 56 19.3         05UN524   691  Ck3858      
2003 11  20.16733  02 05 40.51   +10 55 49.9   21.2R 05UN524   695  Cj5825      
2003 11  20.25207  02 05 39.76   +10 55 47.4         05UN524   695  Cj5825      
2004 11  09.37451  02 21 51.37   +13 43 38.6   22.8g 05UN524   568  C~07Xz      
2004 11  09.40092  02 21 51.11   +13 43 37.6   22.8g 05UN524   568  C~07Xz      
2004 11  09.42696  02 21 50.84   +13 43 36.7   22.7g 05UN524   568  C~07Xz      
2004 11  10.28884  02 21 42.40   +13 43 07.2   22.8g 05UN524   568  C~07Xz      
2005 10  25.51176  02 39 39.04   +16 33 29.8   21.7R 05UN524   568  Cy4044      
2005 10  25.54531  02 39 38.70   +16 33 28.8   21.5R 05UN524   568  Cy4044      
2005 10  25.57843  02 39 38.37   +16 33 27.8   21.6R 05UN524   568  Cy4044      
2005 10  26.55172  02 39 28.55   +16 32 57.7   21.7R 05UN524   568  Cy4044      
2006 10  20.27125  02 56 29.06   +19 14 34.5   21.4r 05UN524   705  C~0nKN      
2006 10  20.271597 02 56 29.08   +19 14 34.4         05UN524   645  C~1rRE      
2006 10  20.27207  02 56 29.05   +19 14 34.5         05UN524   705  C~0nKN      
2006 10  20.272431 02 56 29.07   +19 14 34.4         05UN524   645  C~1rRE      
2006 10  20.27456  02 56 29.02   +19 14 34.4         05UN524   705  C~0nKN      
2006 10  20.274919 02 56 29.04   +19 14 34.3         05UN524   645  C~1rRE      
2010 10  08.41900  04 09 31.92   +28 54 10.1   21.6R 05UN524   688  C~0NjX      
2010 10  08.46364  04 09 31.62   +28 54 10.9         05UN524   688  C~0NjX      
2015 01  22.22998  05 17 24.87   +36 10 47.1   22.1R 05UN524   G37  C~1fKX      
2015 01  22.23384  05 17 24.86   +36 10 47.0         05UN524   G37  C~1fKX      
2015 01  22.23794  05 17 24.83   +36 10 47.0         05UN524   G37  C~1fKX      
2015 01  22.24177  05 17 24.79   +36 10 46.9         05UN524   G37  C~1fKX      

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    -0.37       0.00    -1.11
  2   0.0003      0.00     0.13       0.00     0.08
  3   0.0736      0.00     0.43       0.00    -0.15
  4   0.0737      0.00     0.30       0.00    -0.60
  5   0.0738      0.00     0.19       0.00    -0.79
  6   0.0765      0.00    -0.11       0.00     0.12
  7   0.0768      0.00    -0.06       0.00     0.13
  8   1.0491      0.00     0.26       0.00     0.04
  9   1.0491      0.00     0.33       0.00    -0.06
 10   1.0492      0.00     0.20       0.00    -0.06
 11   1.0516      0.00     0.10       0.00     0.06
 12   2.0077      0.00     0.13       0.00     0.26
 13   2.0078      0.00     0.17       0.00     0.32
 14   2.0079      0.00     0.29       0.00     0.37
 15   2.0105      0.00    -0.15       0.00     0.76
 16   2.9926      0.00    -0.06       0.00     0.07
 17   2.9926      0.00     0.29       0.00    -0.03
 18   2.9926      0.00    -0.09       0.00     0.09
 19   2.9926      0.00     0.26       0.00    -0.01
 20   2.9927      0.00    -0.17       0.00     0.04
 21   2.9927      0.00     0.18       0.00    -0.05
 22   6.9602      0.00    -0.24       0.00     0.07
 23   6.9603      0.00    -0.32       0.00     0.09
 24  11.2499      0.00    -0.08       0.00    -0.16
 25  11.2499      0.00     0.28       0.00    -0.15
 26  11.2499      0.00     0.37       0.00    -0.04
 27  11.2499      0.00     0.27       0.00    -0.04

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.

05UN524    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        21.678    21.678    21.678
ecceobj         0.133     0.133     0.133
incobj         17.744    17.744    17.744
qmin           18.797    18.798    18.797
qmax           24.559    24.559    24.560
amean          21.678    21.678    21.678
amin           21.678    21.678    21.678
amax           21.678    21.678    21.678
emean           0.133     0.133     0.133
emin            0.133     0.133     0.133
emax            0.133     0.133     0.133
imean          17.222    17.222    17.222
imin           17.222    17.222    17.222
imax           17.222    17.222    17.222
excite_mean     0.325     0.325     0.325
fracstop        0.000     0.000     0.000
cjmean          2.989     2.989     2.989

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        49.2      49.2      49.2
kozaiamp          0.0       0.0       0.0