Orbit Fit and Astrometric record for 84719

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: 84719     
# Created Tue Oct 24 01:36:25 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   97 observations of  100
# Arc:  31.22y
# First observation: 1983/10/01
#  Last observation: 2014/12/20
# Chi-squared of fit:   331.63 DOF:  188 RMS:  0.33
# Min/Max residuals:    -1.13    0.91
# Exact a, adot, b, bdot, g, gdot:
  1.589980E-05  4.044331E-02  2.041429E-06  8.934171E-03  3.349886E-02  6.092204E-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
   -6.622267   -4.091344   -0.219459   -0.113033   -0.975455  2445609.061707
# Heliocentric elements and errors
Epoch:              2445608.5000  =  1983/10/01
Mean Anomaly:           25.99120 +/-     0.000
Argument of Peri:      287.96207 +/-     0.000
Long of Asc Node:       23.03294 +/-     0.000
Inclination:            14.02866 +/-     0.000
Eccentricity:         0.26636952 +/-    0.0000
Semi-Major Axis:     39.47147969 +/-    0.0000
Time of Perihelion: 2439068.9582 +/-       0.0
Perihelion:          28.95748074 +/-    0.0000
Aphelion:            49.98547864 +/-    0.0000
Period (y)              247.9895 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.56842363 +/-    0.0000
Ecliptic Y           -1.97522055 +/-    0.0000
Ecliptic Z           -3.44255468 +/-    0.0000
Ecliptic XDOT         0.00082120 +/-    0.0000
Ecliptic YDOT         0.00325306 +/-    0.0000
Ecliptic ZDOT         0.00066773 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.82491809 +/-    0.0000
Geocenter to KBO     29.85171740 +/-    0.0000
# Hcoef:  5.28

The following table shows the complete astrometric record for 84719. 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 (84719) followed by the observatory code and reference code for the source of the astrometry.

1983 10  01.56108  23 55 34.26   -07 42 02.4         84719     260   k6237      
1987 08  23.40798  00 29 00.53   -01 51 23.0         84719     261   k6237      
2000 11  30.283437 01 46 34.60   +12 59 31.4   20.5V 84719     645  C~1SDk      
2000 11  30.284266 01 46 34.59   +12 59 31.4   20.1V 84719     645  C~1SDk      
2000 11  30.286754 01 46 34.58   +12 59 31.4   21.5V 84719     645  C~1SDk      
2001 10  11.45999  01 57 12.27   +14 22 34.3   20.1R 84719     644  Cj0972      
2001 10  11.48098  01 57 12.13   +14 22 33.4   20.0R 84719     644  Cj0972      
2001 10  19.35412  01 56 27.89   +14 19 15.7   20.2R 84719     644  Cj0972      
2001 10  19.37556  01 56 27.75   +14 19 15.5   20.3R 84719     644  Cj0972      
2001 10  19.39668  01 56 27.67   +14 19 15.3   19.9R 84719     644  Cj0972      
2001 10  26.29491  01 55 48.32   +14 16 15.3   20.3R 84719     644  Cj0972      
2001 10  26.31619  01 55 48.11   +14 16 14.8   20.4R 84719     644  Cj0972      
2001 10  26.33844  01 55 48.02   +14 16 14.6   19.8R 84719     644  Cj0972      
2002 09  10.63135  02 05 48.96   +15 32 01.0         84719     608  Ch1653      
2002 09  17.63412  02 05 21.29   +15 30 31.4         84719     608  Ch1653      
2002 10  28.20252  02 01 49.34   +15 15 58.8         84719     644  Ch1653      
2002 10  28.26564  02 01 48.98   +15 15 57.2         84719     644  Ch1653      
2002 10  28.32814  02 01 48.65   +15 15 55.0         84719     644  Ch1653      
2002 11  03.11081  02 01 15.81   +15 13 24.7   21.2  84719     644  Cg8318      
2002 11  03.17779  02 01 15.44   +15 13 22.9   21.6  84719     644  Cg8318      
2002 11  03.23868  02 01 15.07   +15 13 21.2   21.4  84719     644  Cg8318      
2002 11  10.20572  02 00 36.32   +15 10 20.1   21.9R 84719     926  Cg8318      
2002 11  10.20985  02 00 36.30   +15 10 19.1   21.3R 84719     926  Cg8318      
2002 11  10.25475  02 00 36.06   +15 10 18.2   20.4R 84719     926  Cg8318      
2002 11  10.25889  02 00 36.01   +15 10 18.5   20.5R 84719     926  Cg8318      
2002 11  10.29611  02 00 35.86   +15 10 17.7   21.3R 84719     926  Cg8318      
2002 11  10.30021  02 00 35.79   +15 10 17.4   20.8R 84719     926  Cg8318      
2002 11  10.34089  02 00 35.61   +15 10 16.0   21.0R 84719     926  Cg8318      
2002 11  10.34502  02 00 35.57   +15 10 15.6   21.2R 84719     926  Cg8318      
2002 11  11.25659  02 00 30.56   +15 09 52.7         84719     675  Cg8318      
2002 11  11.29885  02 00 30.36   +15 09 51.4         84719     675  Cg8318      
2002 11  11.34205  02 00 30.16   +15 09 50.5         84719     675  Cg8318      
2002 11  12.28010  02 00 25.07   +15 09 26.0         84719     644  Ch1653      
2002 11  12.30118  02 00 24.92   +15 09 25.0         84719     644  Ch1653      
2002 11  23.11529  01 59 29.33   +15 04 56.0         84719     644  Ch1653      
2002 12  05.16024  01 58 35.47   +15 00 26.7   19.8R 84719     662  C~07Dv      
2002 12  05.22950  01 58 35.18   +15 00 25.3         84719     662  C~07Dv      
2003 09  02.11521  02 12 21.01   +16 30 53.4   20.8R 84719     621  Ci5231      
2003 09  02.13854  02 12 20.95   +16 30 53.5   20.9R 84719     621  Ci5231      
2003 09  04.07297  02 12 15.47   +16 30 42.7   20.8R 84719     621  Ci5231      
2003 09  04.09628  02 12 15.43   +16 30 42.3   20.8R 84719     621  Ci5231      
2003 09  21.06628  02 11 13.36   +16 27 47.7   20.4R 84719     621  Ci5231      
2003 09  21.10133  02 11 13.23   +16 27 47.0   20.6R 84719     621  Ci5231      
2003 09  21.99836  02 11 09.33   +16 27 34.1   20.7R 84719     621  Ci5231      
2003 09  22.03336  02 11 09.16   +16 27 34.0   20.9R 84719     621  Ci5231      
2003 10  19.34686  02 08 48.86   +16 18 33.3   21.1V 84719     691  Ck3848      
2003 10  19.37508  02 08 48.72   +16 18 33.7   20.6V 84719     691  Ck3848      
2003 10  19.40292  02 08 48.54   +16 18 32.4   21.3V 84719     691  Ck3848      
2003 11  19.08617  02 05 57.41   +16 05 40.8   20.7V 84719     691  Ck3848      
2003 11  19.11391  02 05 57.25   +16 05 37.8   21.4V 84719     691  Ck3848      
2003 11  19.14197  02 05 57.10   +16 05 36.8   21.5V 84719     691  Ck3848      
2005 12  10.21041  02 16 21.34   +17 50 34.0         84719     701  Cp5700      
2005 12  10.29304  02 16 20.95   +17 50 31.7         84719     701  Cp5700      
2005 12  20.11666  02 15 46.04   +17 47 25.8         84719     701  Cp6298      
2005 12  20.22082  02 15 45.75   +17 47 24.4         84719     701  Cp6298      
2005 12  20.32499  02 15 45.35   +17 47 22.2         84719     701  Cp6298      
2006 07  26.19990  02 30 27.77   +19 08 04.8   20.2R 84719     250  S~06GT      
2006 07  26.20430  02 30 27.78   +19 08 04.9         84719     250  S~06GT      
2006 07  26.20870  02 30 27.79   +19 08 05.0         84719     250  S~06GT      
2006 07  26.24840  02 30 27.85   +19 08 05.7         84719     250  S~06GT      
2008 10  01.486458 02 40 20.40   +20 52 36.5   20.8V 84719     645  C~1SDk      
2008 10  01.487287 02 40 20.40   +20 52 36.4   20.5V 84719     645  C~1SDk      
2008 10  01.489775 02 40 20.39   +20 52 36.4   21.7V 84719     645  C~1SDk      
2008 10  22.25654  02 38 33.39   +20 47 09.7   22.3r 84719     695  C~0gTy      
2008 10  22.28821  02 38 33.21   +20 47 09.1   22.2r 84719     695  C~0gTy      
2010 11  07.48252  02 48 56.441  +22 19 25.66  20.7w 84719     F51  C~1vmA      
2010 11  07.49734  02 48 56.356  +22 19 25.31  20.7w 84719     F51  C~1vmA      
2010 11  07.51075  02 48 56.279  +22 19 24.99  20.8w 84719     F51  C~1vmA      
2011 10  24.53476  02 56 11.814  +23 10 26.19  20.9w 84719     F51  C~1vmA      
2011 10  24.55004  02 56 11.727  +23 10 25.92  20.9w 84719     F51  C~1vmA      
2011 10  24.56527  02 56 11.645  +23 10 25.68  20.8w 84719     F51  C~1vmA      
2011 10  24.58047  02 56 11.561  +23 10 25.45  20.8w 84719     F51  C~1vmA      
2012 10  19.53050  03 02 28.145  +23 56 23.81  20.9w 84719     F51  C~1vmA      
2012 10  19.54475  03 02 28.067  +23 56 23.60  20.9w 84719     F51  C~1vmA      
2012 10  19.55900  03 02 27.986  +23 56 23.37  20.9w 84719     F51  C~1vmA      
2012 10  19.57325  03 02 27.913  +23 56 23.18  20.9w 84719     F51  C~1vmA      
2013 03  07.23695  02 56 55.640  +23 27 12.30  21.0w 84719     F51  C~1vmA      
2013 03  07.24221  02 56 55.659  +23 27 12.33  21.1w 84719     F51  C~1vmA      
2013 03  07.24748  02 56 55.680  +23 27 12.35  21.0w 84719     F51  C~1vmA      
2013 03  07.25274  02 56 55.701  +23 27 12.46  20.9w 84719     F51  C~1vmA      
2013 10  30.35458  03 07 22.428  +24 37 18.03  20.9w 84719     F51  C~1vmA      
2013 10  30.36889  03 07 22.359  +24 37 17.68  20.8w 84719     F51  C~1vmA      
2013 10  30.49005  03 07 21.665  +24 37 15.89  20.9w 84719     F51  C~1vmA      
2013 10  30.50442  03 07 21.580  +24 37 15.69  20.9w 84719     F51  C~1vmA      
2014 11  22.48091  03 11 02.023  +25 12 38.71  21.0w 84719     F51  C~1vmA      
2014 11  22.49328  03 11 01.952  +25 12 38.46  21.0w 84719     F51  C~1vmA      
2014 11  22.50564  03 11 01.878  +25 12 38.13  20.9w 84719     F51  C~1vmA      
2014 11  22.51801  03 11 01.818  +25 12 37.86  20.8w 84719     F51  C~1vmA      
2014 11  28.47573  03 10 28.400  +25 10 35.46  20.9w 84719     F51  C~1vmA      
2014 11  28.48901  03 10 28.325  +25 10 35.14  20.9w 84719     F51  C~1vmA      
2014 11  28.50224  03 10 28.249  +25 10 35.01  20.8w 84719     F51  C~1vmA      
2014 11  28.51551  03 10 28.175  +25 10 34.64  21.0w 84719     F51  C~1vmB      
2014 12  09.44045  03 09 30.457  +25 06 43.35  20.3i 84719     F51  C~1vmB      
2014 12  09.45276  03 09 30.392  +25 06 43.04  20.5i 84719     F51  C~1vmB      
2014 12  09.46521  03 09 30.323  +25 06 42.79  20.3i 84719     F51  C~1vmB      
2014 12  09.47758  03 09 30.270  +25 06 42.42  20.6i 84719     F51  C~1vmB      
2014 12  20.39006  03 08 39.304  +25 02 52.63  21.0w 84719     F51  C~1vmB      
2014 12  20.40224  03 08 39.256  +25 02 52.38  21.0w 84719     F51  C~1vmB      
2014 12  20.41433  03 08 39.203  +25 02 52.09  21.0w 84719     F51  C~1vmB      
2014 12  20.42647  03 08 39.148  +25 02 51.85  21.0w 84719     F51  C~1vmB      

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    -0.18       0.00    -0.87
  2   3.8928      0.00    -0.84       0.00    -0.64
  3  17.1656      0.00     0.48       0.00    -0.32
  4  17.1656      0.00     0.38       0.00    -0.30
  5  17.1656      0.00     0.39       0.00    -0.25
  6  18.0285      0.00     0.29       0.00     0.66
  7  18.0285      0.00    -0.05       0.00     0.27
  8  18.0501      0.00     0.24       0.00    -0.39
  9  18.0501      0.00    -0.01       0.00    -0.03
 10  18.0502      0.00     0.62       0.00     0.31
 11  18.0691      0.00     0.47       0.00     0.39
 12  18.0691      0.00    -0.83       0.00     0.45
 13  18.0692      0.00    -0.24       0.00     0.84
 14  18.9434      0.00 (   0.15)      0.00 (   2.36)
 15  18.9626      0.00 (  -0.85)      0.00 (   2.61)
 16  19.0736      0.00    -0.49       0.00     0.10
 17  19.0738      0.00    -0.41       0.00     0.13
 18  19.0740      0.00     0.08       0.00    -0.46
 19  19.0898      0.00     0.04       0.00    -0.04
 20  19.0900      0.00     0.22       0.00    -0.11
 21  19.0902      0.00    -0.11       0.00    -0.22
 22  19.1092      0.00    -0.16       0.00     0.41
 23  19.1092      0.00    -0.12       0.00    -0.48
 24  19.1094      0.00     0.02       0.00    -0.22
 25  19.1094      0.00    -0.38       0.00     0.19
 26  19.1095      0.00     0.47       0.00     0.35
 27  19.1095      0.00    -0.24       0.00     0.16
 28  19.1096      0.00     0.44       0.00    -0.18
 29  19.1096      0.00     0.18       0.00    -0.47
 30  19.1121      0.00    -0.69       0.00     0.20
 31  19.1122      0.00    -0.19       0.00    -0.01
 32  19.1123      0.00     0.38       0.00     0.21
 33  19.1149      0.00     0.02       0.00    -0.12
 34  19.1150      0.00    -0.50       0.00    -0.58
 35  19.1446      0.00     0.19       0.00     0.20
 36  19.1775      0.00     0.20       0.00     0.38
 37  19.1777      0.00     0.12       0.00     0.40
 38  19.9194      0.00    -0.09       0.00    -0.08
 39  19.9194      0.00    -0.01       0.00     0.14
 40  19.9247      0.00    -0.08       0.00     0.05
 41  19.9248      0.00     0.37       0.00    -0.22
 42  19.9713      0.00     0.06       0.00    -0.24
 43  19.9714      0.00     0.42       0.00    -0.44
 44  19.9738      0.00     0.55       0.00    -0.30
 45  19.9739      0.00     0.34       0.00     0.11
 46  20.0487      0.00    -0.06       0.00    -0.22
 47  20.0488      0.00     0.27       0.00     0.86
 48  20.0488      0.00    -0.04       0.00     0.22
 49  20.1329      0.00 (   0.51)      0.00 (   2.38)
 50  20.1329      0.00     0.30       0.00     0.06
 51  20.1330      0.00     0.26       0.00    -0.25
 52  22.1921      0.00    -0.05       0.00     0.01
 53  22.1923      0.00    -0.87       0.00    -0.57
 54  22.2192      0.00    -0.72       0.00    -0.34
 55  22.2195      0.00    -0.07       0.00     0.05
 56  22.2198      0.00    -1.13       0.00    -0.33
 57  22.8163      0.00     0.84       0.00     0.10
 58  22.8163      0.00     0.88       0.00     0.12
 59  22.8163      0.00     0.91       0.00     0.14
 60  22.8164      0.00     0.80       0.00     0.08
 61  25.0018      0.00     0.29       0.00    -0.24
 62  25.0019      0.00     0.35       0.00    -0.33
 63  25.0019      0.00     0.37       0.00    -0.30
 64  25.0587      0.00    -0.14       0.00     0.37
 65  25.0588      0.00    -0.15       0.00     0.38
 66  27.1018      0.00     0.13       0.00     0.09
 67  27.1018      0.00     0.15       0.00     0.06
 68  27.1018      0.00     0.17       0.00     0.02
 69  28.0629      0.00     0.14       0.00     0.03
 70  28.0629      0.00     0.11       0.00     0.02
 71  28.0630      0.00     0.16       0.00     0.03
 72  28.0630      0.00     0.18       0.00     0.05
 73  29.0513      0.00    -0.13       0.00    -0.04
 74  29.0513      0.00    -0.15       0.00    -0.06
 75  29.0513      0.00    -0.21       0.00    -0.09
 76  29.0514      0.00    -0.16       0.00    -0.08
 77  29.4310      0.00     0.30       0.00     0.25
 78  29.4310      0.00     0.27       0.00     0.23
 79  29.4310      0.00     0.27       0.00     0.19
 80  29.4311      0.00     0.27       0.00     0.25
 81  30.0802      0.00    -0.25       0.00     0.08
 82  30.0802      0.00    -0.06       0.00    -0.05
 83  30.0806      0.00    -0.06       0.00     0.07
 84  30.0806      0.00    -0.10       0.00     0.10
 85  31.1428      0.00    -0.13       0.00     0.07
 86  31.1429      0.00    -0.12       0.00     0.07
 87  31.1429      0.00    -0.16       0.00    -0.01
 88  31.1429      0.00     0.01       0.00    -0.02
 89  31.1592      0.00    -0.14       0.00    -0.04
 90  31.1593      0.00    -0.15       0.00    -0.07
 91  31.1593      0.00    -0.18       0.00     0.08
 92  31.1594      0.00    -0.18       0.00    -0.01
 93  31.1893      0.00     0.06       0.00     0.09
 94  31.1893      0.00     0.02       0.00     0.05
 95  31.1893      0.00    -0.06       0.00     0.07
 96  31.1894      0.00     0.09       0.00    -0.03
 97  31.2192      0.00     0.09       0.00     0.02
 98  31.2193      0.00     0.17       0.00     0.02
 99  31.2193      0.00     0.17       0.00    -0.01
100  31.2193      0.00     0.14       0.00    -0.00

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.

84719    quality flag:3

Type:           3:2E      3:2E      3:2E
Type:          6:4II     6:4II     6:4II

axisobj        39.785    39.785    39.784
ecceobj         0.267     0.267     0.267
incobj         13.973    13.973    13.973
qmin           27.702    27.702    27.701
qmax           51.645    51.640    51.648
amean          39.454    39.454    39.454
amin           39.108    39.108    39.108
amax           39.899    39.900    39.898
emean           0.249     0.249     0.249
emin            0.196     0.196     0.196
emax            0.297     0.297     0.297
imean          14.335    14.336    14.335
imin           11.810    11.811    11.809
imax           16.522    16.523    16.522
excite_mean     0.353     0.353     0.353
fracstop        1.000     1.000     1.000
cjmean          2.910     2.910     2.910

libcent 0       180.3     180.1     180.2
libamp  0        25.6      25.8      25.6
libcent 1       183.6     183.5     183.6
libamp  1       120.8     121.1     121.1
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       272.4     272.4     272.4
kozaiamp         44.0      44.0      44.0