Orbit Fit and Astrometric record for 83982

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: 83982     
# Created Sat Dec 16 02:36:29 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  119 observations of  119
# Arc:  13.37y
# First observation: 2001/03/19
#  Last observation: 2014/08/01
# Chi-squared of fit:   728.14 DOF:  232 RMS:  0.44
# Min/Max residuals:    -1.53    1.91
# Exact a, adot, b, bdot, g, gdot:
  3.088536E-05  1.434700E-01  1.580794E-06  2.640432E-03  7.586651E-02 -7.944763E-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
   13.574528 -157.324971    0.399613    0.214896   -0.890725  2451987.872433
# Heliocentric elements and errors
Epoch:              2451988.5000  =  2001/03/20
Mean Anomaly:          355.15464 +/-     0.000
Argument of Peri:       92.62867 +/-     0.000
Long of Asc Node:      117.36890 +/-     0.000
Inclination:            12.77534 +/-     0.000
Eccentricity:         0.27430201 +/-    0.0000
Semi-Major Axis:     19.34352258 +/-    0.0000
Time of Perihelion: 2452406.7400 +/-       0.0
Perihelion:          14.03755541 +/-    0.0000
Aphelion:            24.64948975 +/-    0.0000
Period (y)               85.0769 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.81784040 +/-    0.0000
Ecliptic Y           -4.91908804 +/-    0.0000
Ecliptic Z            3.09377166 +/-    0.0000
Ecliptic XDOT         0.00203396 +/-    0.0000
Ecliptic YDOT        -0.00475499 +/-    0.0000
Ecliptic ZDOT         0.00008609 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   14.07360106 +/-    0.0000
Geocenter to KBO     13.18107978 +/-    0.0000
# Hcoef:  8.76

The following table shows the complete astrometric record for 83982. 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 (83982) followed by the observatory code and reference code for the source of the astrometry.

2001 03  19.371690 13 43 56.44   +03 48 01.5   20.2V 83982     645  C~2KA1      
2001 03  19.372520 13 43 56.43   +03 48 01.6   19.6V 83982     645  C~2KA1      
2001 03  19.375008 13 43 56.41   +03 48 01.8   21.2V 83982     645  C~2KA1      
2001 03  20.54363  13 43 45.15   +03 49 43.3   19.2R 83982     608  Cf7372      
2001 03  20.55406  13 43 45.11   +03 49 43.7   19.1R 83982     608  Cf7372      
2001 03  20.56450  13 43 44.94   +03 49 44.1   19.4R 83982     608  Cf7372      
2001 04  16.228450 13 38 50.481  +04 24 54.59  20.5V 83982     645  Ci0084      
2001 04  16.231922 13 38 50.436  +04 24 54.79  21.7  83982     645  Ci0084      
2001 04  26.52804  13 36 50.54   +04 35 23.2   19.4R 83982     608  Cf7372      
2002 01  15.65472  14 15 21.76   -00 05 41.0   19.5R 83982     608  Cf7372      
2002 01  15.66507  14 15 21.81   -00 05 40.4   19.6R 83982     608  Cf7372      
2002 04  12.34272  14 10 43.80   +01 24 45.5   20.2  83982     644  Cf5894      
2002 04  12.35780  14 10 43.62   +01 24 46.4   20.1  83982     644  Cf5894      
2002 04  12.37294  14 10 43.43   +01 24 48.0   20.2  83982     644  Cf5894      
2002 04  13.39383  14 10 31.76   +01 26 01.1   19.9  83982     644  Cf5894      
2002 04  13.42006  14 10 31.41   +01 26 03.0   20.3  83982     644  Cf5894      
2002 04  13.44651  14 10 31.12   +01 26 04.7   20.5  83982     644  Cf5894      
2002 04  14.34023  14 10 20.78   +01 27 08.5   19.8R 83982     649  Cf5894      
2002 04  14.38282  14 10 20.30   +01 27 11.2   19.9R 83982     649  Cf5894      
2002 04  14.41936  14 10 19.85   +01 27 14.0   20.1R 83982     649  Cf5894      
2002 04  15.58722  14 10 06.32   +01 28 36.9         83982     474  Cf5894      
2002 04  15.60709  14 10 06.11   +01 28 39.0         83982     474  Cf5894      
2002 04  15.62728  14 10 05.84   +01 28 39.6   19. R 83982     474  Cf5894      
2002 04  15.97166  14 10 01.86   +01 29 02.6         83982     557  Cf5894      
2002 04  16.01109  14 10 01.42   +01 29 04.7         83982     557  Cf5894      
2002 04  16.19005  14 09 59.37   +01 29 16.9   18.6R 83982     649  Cf5894      
2002 04  16.31865  14 09 57.81   +01 29 25.7   19.0R 83982     649  Cf5894      
2002 04  16.42280  14 09 56.64   +01 29 34.8   19.6R 83982     711  Cf5894      
2002 04  16.43061  14 09 56.51   +01 29 34.4   19.5R 83982     711  Cf5894      
2002 04  16.43830  14 09 56.39   +01 29 35.1   19.8R 83982     711  Cf5894      
2002 04  16.53692  14 09 55.33   +01 29 42.9         83982     474  Cf5894      
2002 04  16.56050  14 09 54.97   +01 29 44.2   19.7R 83982     474  Cf5894      
2002 04  16.57720  14 09 54.81   +01 29 45.6   19.9R 83982     474  Cf5894      
2002 04  19.30314  14 09 22.82   +01 32 48.2         83982     658  Cf5894      
2002 04  19.36397  14 09 22.08   +01 32 52.3         83982     658  Cf5894      
2002 04  19.43230  14 09 21.29   +01 32 56.9         83982     658  Cf5894      
2002 05  12.29806  14 04 55.97   +01 52 42.8   20.3  83982     644  Cf5102      
2002 05  12.31823  14 04 55.78   +01 52 43.2   20.7  83982     644  Cf5102      
2002 05  12.33903  14 04 55.51   +01 52 43.9   20.7  83982     644  Cf5102      
2002 05  19.90906  14 03 35.81   +01 56 25.6   21.1R 83982     J86  Cz7331      
2002 05  19.99713  14 03 34.90   +01 56 27.7   21.4R 83982     J86  Cz7331      
2002 05  21.01875  14 03 24.67   +01 56 50.2   21.7R 83982     J86  Cz7331      
2002 05  21.05414  14 03 24.27   +01 56 51.1   22.9R 83982     J86  Cz7331      
2002 05  31.95975  14 01 45.57   +01 58 56.3   19.7R 83982     621  Cf7372      
2002 05  31.97512  14 01 45.45   +01 58 56.7         83982     621  Cf7372      
2002 06  01.43281  14 01 41.689  +01 58 57.36  19.8R 83982     568  Cf7372      
2002 06  01.46587  14 01 41.411  +01 58 57.31  19.9R 83982     568  Cf7372      
2002 06  01.91594  14 01 37.95   +01 58 57.8         83982     246  Cf7372      
2002 06  01.91772  14 01 37.86   +01 58 58.0         83982     246  Cf7372      
2002 06  01.92267  14 01 37.84   +01 58 57.7         83982     246  Cf7372      
2002 06  01.95374  14 01 37.59   +01 58 57.5         83982     621  Cf7372      
2002 06  01.96884  14 01 37.44   +01 58 58.2         83982     621  Cf7372      
2003 04  01.12442  14 43 40.33   -01 44 56.3         83982     621  Ch6142      
2003 04  07.10880  14 42 42.00   -01 37 41.8         83982     621  Ch6142      
2003 04  07.12046  14 42 41.92   -01 37 41.1   19.6R 83982     621  Ch6142      
2003 04  07.13212  14 42 41.78   -01 37 40.4         83982     621  Ch6142      
2003 04  08.05661  14 42 32.30   -01 36 34.6         83982     621  Ch6142      
2003 04  08.06828  14 42 32.19   -01 36 33.3         83982     621  Ch6142      
2003 04  08.07993  14 42 32.08   -01 36 32.1   19.8R 83982     621  Ch6142      
2003 05  27.16735  14 33 12.14   -00 55 45.8   20.5V 83982     691  Ci0084      
2003 05  27.19524  14 33 11.82   -00 55 45.5   20.8V 83982     691  Ci0084      
2003 05  27.22385  14 33 11.52   -00 55 45.0   20.6V 83982     691  Ci0084      
2003 06  01.24545  14 32 21.64   -00 54 33.6   21.9V 83982     691  Ci0084      
2003 06  01.27447  14 32 21.34   -00 54 33.1   21.4V 83982     691  Ci0084      
2003 06  01.30089  14 32 21.09   -00 54 32.8   21.3V 83982     691  Ci0084      
2004 03  15.33706  15 15 54.45   -04 52 04.0   20.3V 83982     291  Ck1164      
2004 03  15.39044  15 15 54.23   -04 52 00.5   20.6V 83982     291  Ck1164      
2004 03  15.44991  15 15 53.93   -04 51 57.3   20.4V 83982     291  Ck1164      
2004 03  24.13482  15 15 07.18   -04 42 58.7   20. R 83982     621  Ck3836      
2004 03  26.15699  15 14 53.77   -04 40 49.3   20. R 83982     621  Ck3836      
2004 03  27.14765  15 14 46.86   -04 39 45.7   20. R 83982     621  Ck3836      
2004 04  23.39569  15 10 27.34   -04 11 15.3   20.5V 83982     691  Ck6212      
2004 04  23.43521  15 10 26.89   -04 11 12.9   20.5V 83982     691  Ck6212      
2004 04  23.48530  15 10 26.31   -04 11 10.3   20.7V 83982     691  Ck6212      
2004 05  14.24278  15 06 19.12   -03 54 16.7   20.4R 83982     701  Ck8019      
2004 05  14.26836  15 06 18.75   -03 54 15.7   20.1R 83982     701  Ck8019      
2004 05  14.29414  15 06 18.45   -03 54 14.7   20.2R 83982     701  Ck8019      
2005 05  16.29298  15 36 38.27   -06 38 45.1   20.1V 83982     691  Cn5279      
2005 05  16.31037  15 36 38.07   -06 38 44.4   20.2V 83982     691  Cn5279      
2005 05  16.32782  15 36 37.83   -06 38 43.6   20.2V 83982     691  Cn5279      
2005 06  05.21624  15 32 41.97   -06 30 33.7   20.3V 83982     691  Cn6418      
2005 06  05.23363  15 32 41.76   -06 30 33.4   20.2V 83982     691  Cn6418      
2005 06  05.25441  15 32 41.52   -06 30 33.3   20.2V 83982     691  Cn6418      
2006 04  26.08149  16 10 48.36   -09 25 48.7   20. R 83982     461  Cs6675      
2006 04  26.08727  16 10 48.32   -09 25 48.4         83982     461  Cs6675      
2006 05  01.42160  16 09 52.61   -09 22 07.4   19.6R 83982     250  S~06GS      
2006 05  01.42600  16 09 52.55   -09 22 07.1         83982     250  S~06GS      
2006 05  01.43040  16 09 52.50   -09 22 06.9         83982     250  S~06GS      
2006 05  01.43480  16 09 52.46   -09 22 06.8         83982     250  S~06GS      
2006 05  18.03152  16 06 39.71   -09 12 09.9   19. R 83982     461  Cs6675      
2006 05  18.04020  16 06 39.64   -09 12 10.1         83982     461  Cs6675      
2006 05  23.29983  16 05 35.29   -09 09 42.9   20.2V 83982     691  Cr2598      
2006 05  23.31706  16 05 35.08   -09 09 42.4   20.1V 83982     691  Cr2598      
2006 05  23.33437  16 05 34.85   -09 09 42.0   20.2V 83982     691  Cr2598      
2006 06  16.24897  16 00 52.39   -09 03 51.5   20.3V 83982     691  Cr4401      
2006 06  16.26969  16 00 52.14   -09 03 51.5   20.4V 83982     691  Cr4401      
2006 06  16.28701  16 00 51.95   -09 03 51.4   20.5V 83982     691  Cr4401      
2007 03  05.13782  16 42 44.94   -12 10 54.3   20. R 83982     461  Cu9821      
2007 04  27.04583  16 40 14.68   -11 42 24.0   20. R 83982     461  Cu8620      
2007 04  27.05452  16 40 14.61   -11 42 23.8         83982     461  Cu8620      
2007 05  12.08445  16 37 40.74   -11 34 37.1   20.1R 83982     213  Cu9821      
2007 06  07.92115  16 32 17.54   -11 25 50.8   19.5R 83982     461  Cv0655      
2007 06  07.93898  16 32 17.32   -11 25 50.9         83982     461  Cv0655      
2008 06  24.28534  16 58 07.061  -13 30 40.39  21.1R 83982     675  C~0B8f      
2008 06  24.32938  16 58 06.546  -13 30 40.54  21.1R 83982     675  C~0B8f      
2008 06  25.28515  16 57 55.655  -13 30 46.85  21.2R 83982     675  C~0B8f      
2008 06  25.32636  16 57 55.161  -13 30 47.22  21.1R 83982     675  C~0B8f      
2014 07  08.031704 19 33 10.40   -20 15 15.7   21.5V 83982     K91  C~16I3      
2014 07  08.035104 19 33 10.35   -20 15 16.1   21.2V 83982     K91  C~16I3      
2014 07  08.038612 19 33 10.32   -20 15 16.5   21.2V 83982     K91  C~16I3      
2014 07  29.029764 19 29 15.44   -20 28 13.3   21.4V 83982     K91  C~16qm      
2014 07  29.033567 19 29 15.39   -20 28 13.4   21.1V 83982     K91  C~16qm      
2014 07  29.040903 19 29 15.32   -20 28 13.7   21.2V 83982     K91  C~16qm      
2014 07  29.044673 19 29 15.28   -20 28 13.8   21.2V 83982     K91  C~16qm      
2014 08  01.760095 19 28 35.81   -20 30 28.4         83982     K91  C~17Dz      
2014 08  01.763781 19 28 35.78   -20 30 28.6         83982     K91  C~17Dz      
2014 08  01.767467 19 28 35.74   -20 30 28.8   20.9V 83982     K91  C~17Dz      
2014 08  01.771149 19 28 35.70   -20 30 29.0   21.1V 83982     K91  C~17Dz      
2014 08  01.774888 19 28 35.65   -20 30 29.2   21.1V 83982     K91  C~17Dz      

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    -0.44       0.00    -1.53
  2   0.0000      0.00    -0.19       0.00    -0.16
  3   0.0000      0.00    -0.12       0.00    -0.17
  4   0.0032      0.00    -0.25       0.00     0.06
  5   0.0032      0.00     0.70       0.00    -0.44
  6   0.0033      0.00    -0.29       0.00    -0.94
  7   0.0763      0.00    -0.06       0.00    -0.20
  8   0.0763      0.00    -0.11       0.00    -0.24
  9   0.1045      0.00    -1.26       0.00     1.61
 10   0.8276      0.00     0.26       0.00    -0.36
 11   0.8276      0.00    -0.17       0.00     0.07
 12   1.0649      0.00     0.34       0.00     0.17
 13   1.0650      0.00     0.28       0.00    -0.02
 14   1.0650      0.00     0.08       0.00     0.48
 15   1.0678      0.00     0.80       0.00     0.08
 16   1.0679      0.00     0.17       0.00     0.10
 17   1.0680      0.00     0.47       0.00    -0.09
 18   1.0704      0.00    -0.13       0.00     0.15
 19   1.0705      0.00     0.19       0.00    -0.16
 20   1.0706      0.00    -0.13       0.00     0.06
 21   1.0738      0.00    -0.15       0.00     0.08
 22   1.0739      0.00     0.22       0.00     0.79
 23   1.0739      0.00    -0.25       0.00    -0.01
 24   1.0749      0.00    -0.07       0.00     0.03
 25   1.0750      0.00     0.32       0.00    -0.60
 26   1.0755      0.00     0.48       0.00    -0.88
 27   1.0758      0.00    -0.01       0.00    -0.97
 28   1.0761      0.00     0.93       0.00     0.87
 29   1.0761      0.00     0.37       0.00    -0.07
 30   1.0762      0.00    -0.07       0.00     0.11
 31   1.0764      0.00     0.85       0.00     0.31
 32   1.0765      0.00    -0.35       0.00    -0.02
 33   1.0765      0.00     0.23       0.00     0.23
 34   1.0840      0.00    -0.28       0.00    -0.09
 35   1.0842      0.00    -0.47       0.00    -0.01
 36   1.0844      0.00    -0.06       0.00     0.08
 37   1.1470      0.00     0.55       0.00     0.36
 38   1.1470      0.00     1.09       0.00     0.04
 39   1.1471      0.00     0.53       0.00     0.01
 40   1.1678      0.00     0.68       0.00    -0.21
 41   1.1680      0.00     0.61       0.00    -0.13
 42   1.1708      0.00     0.16       0.00    -0.06
 43   1.1709      0.00    -0.49       0.00     0.10
 44   1.2008      0.00     0.33       0.00    -0.45
 45   1.2008      0.00     0.44       0.00    -0.08
 46   1.2021      0.00    -0.29       0.00    -0.41
 47   1.2022      0.00    -0.38       0.00    -0.49
 48   1.2034      0.00     1.40       0.00    -0.01
 49   1.2034      0.00     0.27       0.00     0.19
 50   1.2034      0.00     0.57       0.00    -0.11
 51   1.2035      0.00     0.55       0.00    -0.30
 52   1.2036      0.00     0.13       0.00     0.40
 53   2.0335      0.00     1.20       0.00    -0.41
 54   2.0499      0.00    -0.37       0.00     0.07
 55   2.0500      0.00     0.24       0.00    -0.06
 56   2.0500      0.00    -0.05       0.00    -0.20
 57   2.0525      0.00    -0.38       0.00    -0.50
 58   2.0526      0.00    -0.20       0.00    -0.04
 59   2.0526      0.00    -0.02       0.00     0.33
 60   2.1870      0.00     0.48       0.00     0.22
 61   2.1871      0.00     0.07       0.00     0.01
 62   2.1871      0.00     0.09       0.00    -0.01
 63   2.2009      0.00     0.32       0.00     0.14
 64   2.2010      0.00     0.09       0.00     0.34
 65   2.2010      0.00     0.21       0.00     0.38
 66   2.9896      0.00    -0.34       0.00     0.32
 67   2.9898      0.00    -0.06       0.00     0.61
 68   2.9899      0.00    -0.52       0.00     0.23
 69   3.0137      0.00    -0.51       0.00    -0.60
 70   3.0193      0.00    -0.07       0.00    -0.30
 71   3.0220      0.00    -0.04       0.00    -0.25
 72   3.0966      0.00    -0.00       0.00    -0.01
 73   3.0967      0.00     0.13       0.00     0.11
 74   3.0968      0.00     0.13       0.00    -0.18
 75   3.1537      0.00     0.32       0.00    -0.50
 76   3.1537      0.00    -0.53       0.00    -0.48
 77   3.1538      0.00    -0.28       0.00    -0.47
 78   4.1586      0.00     0.04       0.00    -0.11
 79   4.1586      0.00     0.28       0.00    -0.02
 80   4.1587      0.00    -0.06       0.00     0.16
 81   4.2131      0.00     0.07       0.00    -0.10
 82   4.2132      0.00    -0.11       0.00    -0.02
 83   4.2132      0.00    -0.15       0.00    -0.19
 84   5.1026      0.00     0.34       0.00     0.41
 85   5.1026      0.00     0.63       0.00     0.46
 86   5.1172      0.00     0.92       0.00    -1.01
 87   5.1172      0.00     0.73       0.00    -0.89
 88   5.1172      0.00     0.70       0.00    -0.87
 89   5.1172      0.00     0.81       0.00    -0.94
 90   5.1627      0.00    -0.22       0.00     1.91
 91   5.1627      0.00     0.34       0.00     1.44
 92   5.1771      0.00    -0.03       0.00    -0.23
 93   5.1771      0.00     0.06       0.00    -0.18
 94   5.1772      0.00    -0.14       0.00    -0.23
 95   5.2426      0.00     0.42       0.00     0.12
 96   5.2427      0.00     0.11       0.00     0.08
 97   5.2428      0.00     0.13       0.00     0.14
 98   5.9597      0.00     0.07       0.00     0.13
 99   6.1045      0.00    -0.25       0.00    -0.22
100   6.1045      0.00    -0.10       0.00    -0.31
101   6.1457      0.00     1.16       0.00     0.04
102   6.2192      0.00     0.08       0.00    -0.10
103   6.2192      0.00     0.09       0.00    -0.37
104   7.2660      0.00    -0.02       0.00     0.15
105   7.2661      0.00    -0.03       0.00     0.25
106   7.2688      0.00     0.07       0.00     0.03
107   7.2689      0.00    -0.18       0.00    -0.07
108  13.3023      0.00     0.24       0.00     0.49
109  13.3023      0.00     0.07       0.00     0.21
110  13.3023      0.00     0.22       0.00    -0.06
111  13.3598      0.00     0.09       0.00     0.00
112  13.3598      0.00    -0.04       0.00     0.04
113  13.3598      0.00     0.11       0.00     0.00
114  13.3598      0.00     0.13       0.00     0.04
115  13.3700      0.00     0.12       0.00     0.11
116  13.3700      0.00     0.25       0.00     0.05
117  13.3700      0.00     0.24       0.00    -0.02
118  13.3700      0.00     0.23       0.00    -0.08
119  13.3700      0.00     0.07       0.00    -0.14

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.

83982    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        19.302    19.302    19.302
ecceobj         0.273     0.273     0.273
incobj         12.777    12.777    12.777
qmin           13.477    13.511    13.508
qmax           26.879    25.653    26.928
amean          19.624    19.524    19.606
amin           18.866    18.866    18.865
amax           20.228    20.017    20.309
emean           0.297     0.288     0.298
emin            0.265     0.265     0.265
emax            0.330     0.307     0.328
imean          10.511    10.600    10.485
imin           10.005     9.875    10.042
imax           11.450    12.321    11.450
excite_mean     0.349     0.342     0.350
fracstop        0.008     0.008     0.007
cjmean          3.048     3.056     3.049

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       172.1     176.0     162.7
kozaiamp         84.2      82.3      75.1