Orbit Fit and Astrometric record for 82075

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: 82075     
# Created Mon Dec 22 02:36:53 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   77 observations of   78
# Arc:   7.99y
# First observation: 2000/12/26
#  Last observation: 2008/12/22
# Chi-squared of fit:   421.43 DOF:  148 RMS:  0.41
# Min/Max residuals:    -1.15    1.59
# Exact a, adot, b, bdot, g, gdot:
  2.009768E-05  2.412667E-02  6.549200E-06  8.577204E-03  2.391997E-02  3.498761E-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
   -3.592585  117.638098    0.373248   -0.056878   -0.903318  2451904.908543
# Heliocentric elements and errors
Epoch:              2451904.5000  =  2000/12/26
Mean Anomaly:           17.81485 +/-     0.000
Argument of Peri:      316.11342 +/-     0.000
Long of Asc Node:      126.96242 +/-     0.000
Inclination:            19.78611 +/-     0.000
Eccentricity:         0.29596478 +/-    0.0000
Semi-Major Axis:     58.37443230 +/-    0.0000
Time of Perihelion: 2443843.0710 +/-       0.0
Perihelion:          41.09765626 +/-    0.0000
Aphelion:            75.65120834 +/-    0.0000
Period (y)              446.0075 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.44038344 +/-    0.0000
Ecliptic Y           37.94251627 +/-    0.0000
Ecliptic Z           -2.61934464 +/-    0.0000
Ecliptic XDOT        -0.00266844 +/-    0.0000
Ecliptic YDOT        -0.00086842 +/-    0.0000
Ecliptic ZDOT         0.00095489 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.71318425 +/-    0.0000
Geocenter to KBO     41.80600197 +/-    0.0000
# Hcoef:  4.79

The following table shows the complete astrometric record for 82075. 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 (82075) followed by the observatory code and reference code for the source of the astrometry.

2000 12  26.40780  07 55 53.76   +17 06 35.7   21.5V 82075     691  Cc5536      
2000 12  26.43000  07 55 53.68   +17 06 36.1   21.4V 82075     691  Cc5536      
2000 12  26.47288  07 55 53.47   +17 06 36.8   21.6V 82075     691  Cc5536      
2001 01  16.25852  07 54 14.47   +17 12 33.5   21.8V 82075     691  Cc5536      
2001 01  16.28052  07 54 14.30   +17 12 34.1   21.1V 82075     691  Cc5536      
2001 01  16.30245  07 54 14.13   +17 12 37.1   21.8V 82075     691  Cc5536      
2001 01  25.22992  07 53 30.53   +17 15 22.9   21.5V 82075     691  Cc5536      
2001 01  25.33003  07 53 30.05   +17 15 24.0   22.7V 82075     691  Cc5536      
2001 02  01.25040  07 52 56.99   +17 17 37.4   21.0V 82075     691  Cc5536      
2001 02  01.28493  07 52 56.86   +17 17 38.0   21.3V 82075     691  Cc5536      
2001 02  01.31749  07 52 56.70   +17 17 39.3   21.2V 82075     691  Cc5536      
2001 02  12.15649  07 52 08.01   +17 21 05.8         82075     684  Cc6772      
2001 02  12.17708  07 52 07.96   +17 21 06.0         82075     684  Cc6772      
2001 02  12.22354  07 52 07.72   +17 21 07.1         82075     684  Cc6772      
2001 02  13.15351  07 52 03.78   +17 21 24.7         82075     684  Cc6772      
2001 02  13.17627  07 52 03.72   +17 21 24.6         82075     684  Cc6772      
2001 02  13.25146  07 52 03.36   +17 21 25.8         82075     684  Cc6772      
2001 02  13.27043  07 52 03.29   +17 21 26.5         82075     684  Cc6772      
2001 12  09.20298  08 03 07.17   +17 15 00.1   20.2R 82075     621  Ce5374      
2001 12  09.23723  08 03 07.06   +17 15 01.1   19.8R 82075     621  Ce5374      
2001 12  10.10116  08 03 04.09   +17 15 11.4   20.5R 82075     621  Ce5374      
2001 12  10.12781  08 03 03.99   +17 15 10.6   20.9R 82075     621  Ce5374      
2002 01  04.97347  08 01 15.61   +17 21 43.1         82075     621  Ce6996      
2002 01  05.43325  08 01 13.44   +17 21 51.2   20. R 82075     608  Ck3812      
2002 01  05.91475  08 01 11.14   +17 21 59.7   20.3R 82075     621  Ce6996      
2002 01  05.95282  08 01 10.95   +17 22 00.4   20.4R 82075     621  Ce6996      
2002 01  06.00351  08 01 10.76   +17 22 01.5   20.5R 82075     621  Ce6996      
2002 01  12.87519  08 00 37.70   +17 24 07.3   20.4R 82075     204  Ce6996      
2002 01  13.16670  08 00 36.21   +17 24 11.5   20.7R 82075     204  Ce6996      
2002 02  16.19442  07 57 57.20   +17 35 10.0   20.5R 82075     644  Ck3812      
2002 03  05.14534  07 56 56.08   +17 40 13.2   20.5R 82075     644  Ck3812      
2002 10  09.46768  08 09 46.43   +17 23 18.4         82075     290  Cg7750      
2002 10  09.51313  08 09 46.52   +17 23 18.2         82075     290  Cg7750      
2002 10  10.46199  08 09 48.62   +17 23 12.6         82075     290  Cg7750      
2002 10  10.50319  08 09 48.70   +17 23 12.4         82075     290  Cg7750      
2003 01  09.97992  08 06 56.59   +17 34 59.0         82075     621  Ch3875      
2003 01  10.01838  08 06 56.43   +17 34 59.6         82075     621  Ch3875      
2003 02  21.95026  08 03 38.56   +17 48 59.6   21.2R 82075     621  Ch3875      
2003 02  22.96686  08 03 34.62   +17 49 18.4         82075     621  Ch3875      
2003 02  23.92490  08 03 31.03   +17 49 35.6         82075     621  Ch3875      
2004 01  15.46852  08 12 33.44   +17 47 44.1         82075     691  Ck3812      
2004 01  15.49590  08 12 33.29   +17 47 45.2         82075     691  Ck3812      
2004 01  15.52347  08 12 33.14   +17 47 45.4         82075     691  Ck3812      
2004 01  23.23857  08 11 55.74   +17 50 21.6         82075     675  Cj9987      
2004 01  23.27550  08 11 55.57   +17 50 22.2         82075     675  Cj9987      
2004 01  23.31383  08 11 55.38   +17 50 23.1         82075     675  Cj9987      
2004 01  24.26673  08 11 50.77   +17 50 42.3         82075     675  Cj9987      
2004 01  24.32173  08 11 50.49   +17 50 43.8         82075     675  Cj9987      
2004 01  27.29538  08 11 36.09   +17 51 44.5   21.3V 82075     691  Cj7684      
2004 01  27.29804  08 11 36.08   +17 51 44.4   21.5V 82075     691  Cj7684      
2004 01  27.32424  08 11 35.94   +17 51 45.3   21.3V 82075     691  Cj7684      
2004 01  27.32701  08 11 35.93   +17 51 45.0   21.3V 82075     691  Cj7684      
2004 01  27.35223  08 11 35.82   +17 51 45.6   21.1V 82075     691  Cj7684      
2004 01  27.35515  08 11 35.78   +17 51 45.7   21.5V 82075     691  Cj7684      
2004 02  11.12228  08 10 26.81   +17 56 45.3         82075     691  Ck3812      
2004 02  11.14900  08 10 26.68   +17 56 45.0         82075     691  Ck3812      
2004 02  11.17747  08 10 26.54   +17 56 46.2         82075     691  Ck3812      
2004 02  19.94094  08 09 49.03   +17 59 37.8   20. R 82075     621  Ck0667      
2004 02  20.94693  08 09 45.00   +17 59 56.9         82075     621  Ck0667      
2004 02  23.95705  08 09 33.16   +18 00 53.0         82075     621  Ck0667      
2004 03  18.21532  08 08 22.49   +18 07 14.9   21.1V 82075     645  cv2379      
2004 04  16.14534  08 07 58.77   +18 12 05.8   21.3V 82075     645  cv2379      
2004 12  11.40999  08 20 56.46   +17 47 56.4   21.1V 82075     645  cv2379      
2007 10  10.15668  08 38 39.31   +18 08 41.4   21.3R 82075     250  S~06GN      
2007 10  10.16432  08 38 39.34   +18 08 41.3         82075     250  S~06GN      
2007 10  10.17196  08 38 39.36   +18 08 41.3         82075     250  S~06GN      
2007 11  10.64487  08 39 22.09   +18 08 17.8         82075     250  S~06GN      
2007 11  10.65251  08 39 22.09   +18 08 17.8         82075     250  S~06GN      
2007 11  10.66015  08 39 22.09   +18 08 17.9         82075     250  S~06GN      
2007 11  10.66779  08 39 22.09   +18 08 17.9         82075     250  S~06GN      
2008 02  11.36020  08 34 11.590  +18 34 36.56  21.0R 82075     675  C~0B8b      
2008 02  11.40200  08 34 11.415  +18 34 36.44  21.0R 82075     675  C~0B8b      
2008 02  12.25086  08 34 07.560  +18 34 54.74  21.3R 82075     675  C~0B8b      
2008 02  12.29857  08 34 07.343  +18 34 55.85  21.0R 82075     675  C~0B8b      
2008 12  21.48229  08 43 47.67   +18 23 44.9   20.4r 82075     695  C~0hm4      
2008 12  21.54319  08 43 47.47   +18 23 46.1   20.5r 82075     695  C~0hm4      
2008 12  22.46554  08 43 44.21   +18 24 03.2   20.3r 82075     695  C~0hm4      
2009 10  26.25436  08 50 32.217  +18 21 04.64  21.9V 82075     950  C~0CEz      

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     0.06       0.00    -0.02
  2   0.0001      0.00    -0.55       0.00     0.03
  3   0.0002      0.00    -0.77       0.00     0.08
  4   0.0571      0.00     0.82       0.00    -0.12
  5   0.0571      0.00    -0.08       0.00     0.07
  6   0.0572      0.00 (  -0.99)      0.00 (   2.66)
  7   0.0816      0.00     0.72       0.00     0.41
  8   0.0819      0.00     0.91       0.00    -0.40
  9   0.1009      0.00     0.54       0.00     0.28
 10   0.1010      0.00     1.06       0.00     0.22
 11   0.1011      0.00     0.98       0.00     0.89
 12   0.1307      0.00    -0.28       0.00     0.25
 13   0.1308      0.00     0.31       0.00     0.06
 14   0.1309      0.00    -0.28       0.00     0.27
 15   0.1335      0.00    -0.44       0.00     0.33
 16   0.1335      0.00     0.12       0.00    -0.20
 17   0.1337      0.00    -0.46       0.00    -0.42
 18   0.1338      0.00    -0.29       0.00    -0.07
 19   0.9522      0.00    -0.08       0.00    -0.01
 20   0.9523      0.00     0.04       0.00     0.59
 21   0.9547      0.00     0.05       0.00     0.45
 22   0.9547      0.00    -0.03       0.00    -0.67
 23   1.0255      0.00    -0.16       0.00     0.04
 24   1.0268      0.00    -0.12       0.00    -0.08
 25   1.0281      0.00    -0.41       0.00    -0.01
 26   1.0282      0.00    -0.52       0.00     0.01
 27   1.0283      0.00     0.28       0.00     0.21
 28   1.0471      0.00     0.75       0.00     0.73
 29   1.0479      0.00    -0.06       0.00    -0.49
 30   1.1411      0.00     0.00       0.00     0.24
 31   1.1875      0.00    -0.70       0.00     0.11
 32   1.7852      0.00    -0.09       0.00     0.05
 33   1.7854      0.00    -0.24       0.00     0.11
 34   1.7880      0.00    -0.22       0.00     0.12
 35   1.7881      0.00    -0.32       0.00     0.15
 36   2.0385      0.00     0.15       0.00     0.08
 37   2.0386      0.00     0.54       0.00    -0.05
 38   2.1562      0.00     0.04       0.00     0.08
 39   2.1590      0.00    -0.39       0.00     0.12
 40   2.1616      0.00     0.16       0.00    -0.25
 41   3.0529      0.00     0.87       0.00    -1.15
 42   3.0529      0.00     0.62       0.00    -0.59
 43   3.0530      0.00     0.37       0.00    -0.93
 44   3.0741      0.00    -0.03       0.00    -0.07
 45   3.0742      0.00     0.14       0.00    -0.23
 46   3.0743      0.00     0.13       0.00    -0.11
 47   3.0770      0.00     0.29       0.00    -0.31
 48   3.0771      0.00     0.15       0.00     0.06
 49   3.0853      0.00     0.00       0.00     0.04
 50   3.0853      0.00     0.05       0.00    -0.12
 51   3.0853      0.00    -0.12       0.00     0.25
 52   3.0853      0.00    -0.07       0.00    -0.11
 53   3.0854      0.00     0.13       0.00    -0.02
 54   3.0854      0.00    -0.25       0.00     0.02
 55   3.1258      0.00     0.52       0.00    -0.24
 56   3.1259      0.00     0.38       0.00    -1.08
 57   3.1260      0.00     0.21       0.00    -0.45
 58   3.1500      0.00    -0.59       0.00    -0.11
 59   3.1527      0.00    -0.10       0.00    -0.14
 60   3.1610      0.00    -0.39       0.00    -0.44
 61   3.2247      0.00    -0.08       0.00    -0.13
 62   3.3039      0.00    -0.09       0.00    -0.17
 63   3.9589      0.00    -0.44       0.00    -0.20
 64   6.7864      0.00    -0.17       0.00    -0.57
 65   6.7865      0.00    -0.04       0.00    -0.62
 66   6.7865      0.00    -0.06       0.00    -0.58
 67   6.8727      0.00     0.35       0.00     0.31
 68   6.8727      0.00     0.36       0.00     0.27
 69   6.8727      0.00     0.38       0.00     0.33
 70   6.8727      0.00     0.39       0.00     0.29
 71   7.1265      0.00    -0.04       0.00     1.59
 72   7.1266      0.00     0.23       0.00     0.58
 73   7.1289      0.00     0.08       0.00     0.71
 74   7.1291      0.00     0.12       0.00     0.80
 75   7.9865      0.00    -0.41       0.00    -0.25
 76   7.9867      0.00    -0.16       0.00    -0.16
 77   7.9892      0.00    -0.44       0.00    -0.18
 78   8.8319      0.00    -0.37       0.00    -0.16

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.

82075    quality flag:3

Type:       8:3EEEEE  8:3EEEEE  8:3EEEEE

axisobj        58.141    58.142    58.141
ecceobj         0.294     0.294     0.294
incobj         19.812    19.812    19.812
qmin           38.157    38.157    38.157
qmax           78.526    78.526    78.527
amean          57.900    57.900    57.900
amin           57.300    57.299    57.300
amax           58.646    58.646    58.646
emean           0.315     0.315     0.315
emin            0.270     0.270     0.270
emax            0.340     0.340     0.340
imean          16.679    16.680    16.679
imin           15.457    15.458    15.457
imax           19.023    19.024    19.021
excite_mean     0.426     0.426     0.426
fracstop        1.000     1.000     1.000
cjmean          3.042     3.042     3.042

libcent 0       178.0     178.0     178.1
libamp  0        27.6      27.8      27.4
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       185.8     185.7     185.8
kozaiamp        180.0     180.0     180.0