Orbit Fit and Astrometric record for 04TF282

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: 04TF282   
# Created Mon Dec 11 02:37:26 2017
# Orbit generated from Bernstein formalism
# Fitting   67 observations of   67
# Arc:  10.27y
# First observation: 2004/10/15
#  Last observation: 2015/01/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000619   0.029588   0.000229  -0.012649   0.025628   0.000000
# Chi-squared of fit:   273.42 DOF:  128 RMS:  0.36
# Min/Max residuals:    -2.07    0.94
# Exact a, adot, b, bdot, g, gdot:
  1.696824E-05  2.933402E-02 -6.956772E-06 -1.254390E-02  2.593817E-02  1.185317E-03
# Covariance matrix:
  7.5811E-14 -2.2520E-14 -6.5412E-15  7.5613E-15  1.9191E-14 -5.7442E-14
 -2.2520E-14  2.3365E-14  8.6251E-15 -9.8874E-15  9.7349E-15  7.4818E-14
 -6.5412E-15  8.6251E-15  5.7847E-14 -1.0105E-14  3.1878E-15  2.9161E-14
  7.5613E-15 -9.8874E-15 -1.0105E-14  5.6108E-15 -3.4783E-15 -3.3446E-14
  1.9191E-14  9.7349E-15  3.1878E-15 -3.4783E-15  7.8122E-14  2.5689E-14
 -5.7442E-14  7.4818E-14  2.9161E-14 -3.3446E-14  2.5689E-14  2.5315E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.821855   51.528383    0.490013    0.027830   -0.871972  2453293.929253
# Heliocentric elements and errors
Epoch:              2453290.5000  =  2004/10/12
Mean Anomaly:            1.14061 +/-     0.001
Argument of Peri:      171.36957 +/-     0.003
Long of Asc Node:      234.98242 +/-     0.000
Inclination:            23.20334 +/-     0.000
Eccentricity:         0.51036609 +/-    0.0000
Semi-Major Axis:     80.45205189 +/-    0.0086
Time of Perihelion: 2452455.4005 +/-       0.5
Perihelion:          39.39205267 +/-    0.0057
Aphelion:           121.51205110 +/-    0.0136
Period (y)              721.6289 +/-      0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.89453834 +/-    0.0003
Ecliptic Y           30.54814334 +/-    0.0003
Ecliptic Z            1.22541897 +/-    0.0000
Ecliptic XDOT        -0.00232157 +/-    0.0000
Ecliptic YDOT         0.00205001 +/-    0.0000
Ecliptic ZDOT        -0.00131930 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.42624446 +/-    0.0003
Geocenter to KBO     38.55322210 +/-    0.0004
# Hcoef:  6.11

The following table shows the complete astrometric record for 04TF282. 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 (04TF282) followed by the observatory code and reference code for the source of the astrometry.

2004 10  15.42851  03 14 23.95   +19 54 12.7   21.7R 04TF282   695  Cl8661      
2004 10  15.50510  03 14 23.61   +19 54 11.0         04TF282   695  Cl8661      
2004 10  16.48805  03 14 19.34   +19 53 48.6         04TF282   695  Cl8661      
2004 11  04.21200  03 12 50.11   +19 46 04.3   21.0R 04TF282   709  Cl9882      
2004 11  04.25568  03 12 49.88   +19 46 01.7   21.3R 04TF282   709  Cl9883      
2004 11  04.28844  03 12 49.81   +19 46 01.7   21.4R 04TF282   709  Cl9883      
2004 11  04.31028  03 12 49.58   +19 45 59.1   18.8R 04TF282   709  Cl9883      
2004 11  09.25460  03 12 24.67   +19 43 48.7   22.1R 04TF282   695  Cl9883      
2004 11  09.34728  03 12 24.20   +19 43 46.1         04TF282   695  Cl9883      
2004 11  10.32874  03 12 19.20   +19 43 19.6         04TF282   695  Cl9883      
2004 12  04.36089  03 10 20.33   +19 32 24.7   22.0R 04TF282   688  Cm1180      
2004 12  04.43034  03 10 19.95   +19 32 22.4         04TF282   688  Cm1180      
2004 12  11.25142  03 09 49.78   +19 29 24.7   21.8R 04TF282   688  Cm1764      
2004 12  11.31883  03 09 49.44   +19 29 23.4         04TF282   688  Cm1764      
2005 02  09.12205  03 08 05.44   +19 13 01.3   22.4R 04TF282   688  Cm6788      
2005 02  09.23582  03 08 05.56   +19 13 00.1         04TF282   688  Cm6788      
2005 09  24.50400  03 23 18.69   +19 45 14.7   21.9r 04TF282   695  Co3999      
2005 09  25.48895  03 23 16.00   +19 44 59.1   21.8r 04TF282   695  Co3999      
2005 10  01.37872  03 22 58.18   +19 43 19.1   22.0R 04TF282   688  Co3999      
2005 10  01.45406  03 22 57.92   +19 43 17.9         04TF282   688  Co3999      
2005 11  02.29485  03 20 42.45   +19 31 30.9   21.4R 04TF282   695  Cp0717      
2005 11  02.34718  03 20 42.19   +19 31 29.4         04TF282   695  Cp0717      
2005 11  02.40732  03 20 41.88   +19 31 27.9         04TF282   695  Cp0717      
2006 08  07.25899  03 31 01.87   +19 34 01.1   21.7R 04TF282   250  S~06Al      
2006 08  07.26339  03 31 01.88   +19 34 01.1         04TF282   250  S~06Al      
2006 08  07.26779  03 31 01.89   +19 34 01.1         04TF282   250  S~06Al      
2006 08  07.27218  03 31 01.90   +19 34 01.1         04TF282   250  S~06Al      
2006 12  24.26660  03 24 15.39   +18 53 39.5   21.9R 04TF282   688  Ct2202      
2006 12  24.34429  03 24 15.08   +18 53 38.1         04TF282   688  Ct2202      
2008 10  23.51382  03 44 12.48   +18 41 47.5   22.8r 04TF282   695  C~0gMC      
2008 10  24.37506  03 44 08.67   +18 41 28.4   22.9r 04TF282   695  C~0gMC      
2008 10  24.49623  03 44 08.15   +18 41 25.7   22.9r 04TF282   695  C~0gMC      
2008 12  01.33793  03 41 00.76   +18 26 31.9   22.0R 04TF282   688  C~02MY      
2008 12  01.38255  03 41 00.52   +18 26 31.0         04TF282   688  C~02MY      
2011 01  09.27124  03 53 12.29   +17 35 09.3   21.5R 04TF282   695  C~0U3G      
2011 01  09.28857  03 53 12.26   +17 35 09.3         04TF282   695  C~0U3G      
2011 01  09.29137  03 53 12.24   +17 35 09.3         04TF282   695  C~0U3G      
2011 10  26.41744  04 06 15.756  +17 38 26.94  22.2w 04TF282   F51  C~1vVM      
2011 10  26.43195  04 06 15.665  +17 38 26.69  22.4w 04TF282   F51  C~1vVM      
2011 10  26.44647  04 06 15.624  +17 38 26.50  22.3w 04TF282   F51  C~1vVM      
2011 10  26.46106  04 06 15.562  +17 38 26.10  22.3w 04TF282   F51  C~1vVM      
2013 11  26.33171  04 18 14.579  +16 41 43.03  22.1w 04TF282   F51  C~1vVM      
2013 11  26.34699  04 18 14.514  +16 41 42.79  22.0w 04TF282   F51  C~1vVM      
2013 11  26.36232  04 18 14.438  +16 41 42.43  22.0w 04TF282   F51  C~1vVM      
2013 11  26.37770  04 18 14.353  +16 41 42.28  22.2w 04TF282   F51  C~1vVM      
2014 09  04.57374  04 29 16.824  +16 43 07.51  22.8w 04TF282   F51  C~1vVM      
2014 09  04.58490  04 29 16.821  +16 43 07.15  22.6w 04TF282   F51  C~1vVM      
2014 09  04.59609  04 29 16.845  +16 43 06.80  22.8w 04TF282   F51  C~1vVM      
2014 09  04.60726  04 29 16.836  +16 43 06.90  22.7w 04TF282   F51  C~1vVM      
2014 11  17.34767  04 26 08.428  +16 20 49.82  21.9w 04TF282   F51  C~1vVM      
2014 11  17.36058  04 26 08.372  +16 20 49.67  22.4w 04TF282   F51  C~1vVM      
2014 11  17.37344  04 26 08.329  +16 20 49.18  22.3w 04TF282   F51  C~1vVM      
2014 11  17.38633  04 26 08.249  +16 20 49.14  22.3w 04TF282   F51  C~1vVM      
2014 11  19.36065  04 25 58.472  +16 20 09.86  21.9w 04TF282   F51  C~1vVM      
2014 11  19.37352  04 25 58.397  +16 20 09.96  22.1w 04TF282   F51  C~1vVM      
2014 11  19.38632  04 25 58.364  +16 20 09.84  21.8w 04TF282   F51  C~1vVM      
2014 11  21.37127  04 25 48.427  +16 19 30.50  22.2w 04TF282   F51  C~1vVM      
2014 11  21.38332  04 25 48.353  +16 19 30.21  22.4w 04TF282   F51  C~1vVM      
2014 11  21.39540  04 25 48.308  +16 19 30.18  22.3w 04TF282   F51  C~1vVM      
2014 11  21.40752  04 25 48.262  +16 19 29.91  22.2w 04TF282   F51  C~1vVM      
2014 11  27.50783  04 25 17.379  +16 17 32.65  22.0w 04TF282   F51  C~1vVM      
2014 11  27.53434  04 25 17.269  +16 17 31.91  22.3w 04TF282   F51  C~1vVM      
2014 11  27.54759  04 25 17.198  +16 17 31.68  22.0w 04TF282   F51  C~1vVM      
2015 01  22.33909  04 21 21.387  +16 05 22.28  22.6w 04TF282   F51  C~1vVM      
2015 01  22.35305  04 21 21.361  +16 05 22.35  22.3w 04TF282   F51  C~1vVM      
2015 01  22.36701  04 21 21.320  +16 05 22.10  22.1w 04TF282   F51  C~1vVM      
2015 01  22.38091  04 21 21.287  +16 05 22.24  21.9w 04TF282   F51  C~1vVM      

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     0.19       0.00    -0.14
  2   0.0002     -5.07     0.16      -0.38    -0.09
  3   0.0029    -69.07     0.30      -6.13    -0.22
  4   0.0542  -1406.11    -1.00    -121.07     0.94
  5   0.0543  -1409.93    -1.48    -122.71    -0.43
  6   0.0544  -1410.88     0.08    -122.45     0.03
  7   0.0544  -1414.70    -2.07    -124.10    -1.47
  8   0.0680  -1788.41     0.25    -156.36    -0.12
  9   0.0682  -1795.50     0.36    -157.10    -0.25
 10   0.0709  -1870.61     0.36    -163.86    -0.18
 11   0.1367  -3664.35     0.45    -345.58    -0.23
 12   0.1369  -3670.14    -0.44    -346.35    -0.42
 13   0.1556  -4128.96     0.62    -402.63    -0.31
 14   0.1558  -4133.94     0.08    -402.58     0.29
 15   0.3195  -5817.81     0.51    -949.51     0.23
 16   0.3198  -5816.50     0.08    -951.13    -0.31
 17   0.9420   7157.46     0.37   -2458.81    -0.11
 18   0.9447   7116.73     0.44   -2464.40    -0.11
 19   0.9608   6847.78     0.24   -2498.10     0.15
 20   0.9611   6843.92     0.17   -2498.34     0.32
 21   1.0482   4811.62     0.08   -2698.71     0.11
 22   1.0484   4807.68     0.10   -2699.22    -0.07
 23   1.0485   4803.05     0.02   -2699.56    -0.01
 24   1.8093  13353.49     0.07   -4720.81     0.61
 25   1.8093  13353.63     0.07   -4720.84     0.61
 26   1.8093  13353.77     0.06   -4720.88     0.60
 27   1.8093  13353.90     0.06   -4720.91     0.59
 28   2.1898   7162.16     0.19   -5659.60     0.02
 29   2.1901   7157.55     0.01   -5659.86     0.33
 30   4.0221  23634.63     0.05  -10399.60    -0.04
 31   4.0245  23576.81    -0.21  -10406.13     0.07
 32   4.0248  23568.90     0.18  -10407.11     0.00
 33   4.1284  20736.69    -0.08  -10676.33     0.15
 34   4.1286  20733.12    -0.25  -10676.43     0.35
 35   6.2337  30437.55    -0.15  -16063.08    -0.09
 36   6.2337  30437.12     0.23  -16062.98     0.07
 37   6.2337  30436.84     0.07  -16062.92     0.14
 38   7.0280  41842.80     0.17  -18249.21    -0.19
 39   7.0281  41841.41    -0.24  -18249.19    -0.05
 40   7.0281  41840.78     0.10  -18249.26    -0.00
 41   7.0282  41839.79     0.09  -18249.48    -0.10
 42   9.1140  51941.95    -0.12  -23797.27    -0.13
 43   9.1141  51940.92     0.10  -23797.32    -0.11
 44   9.1141  51939.70     0.14  -23797.48    -0.18
 45   9.1142  51938.39     0.09  -23797.39    -0.01
 46   9.8868  62143.72     0.11  -25567.09     0.17
 47   9.8868  62143.61    -0.09  -25567.45    -0.04
 48   9.8868  62143.93     0.13  -25567.88    -0.30
 49   9.8869  62143.81    -0.09  -25567.75    -0.01
 50  10.0888  58995.93    -0.25  -26435.98    -0.02
 51  10.0888  58995.03    -0.10  -26435.98     0.07
 52  10.0888  58994.29     0.19  -26436.37    -0.24
 53  10.0889  58993.04    -0.01  -26436.18     0.03
 54  10.0943  58834.98    -0.14  -26449.46    -0.15
 55  10.0943  58833.83    -0.24  -26449.15     0.24
 56  10.0943  58833.30     0.28  -26449.18     0.29
 57  10.0998  58672.80    -0.14  -26462.04    -0.03
 58  10.0998  58671.61    -0.35  -26462.13    -0.06
 59  10.0998  58670.91    -0.06  -26462.03     0.11
 60  10.0999  58670.15     0.18  -26462.18     0.03
 61  10.1166  58172.48    -0.14  -26496.70     0.02
 62  10.1166  58170.66     0.23  -26497.16    -0.30
 63  10.1167  58169.52     0.20  -26497.19    -0.26
 64  10.2694  54413.56    -0.14  -26577.74    -0.00
 65  10.2695  54413.17     0.04  -26577.59     0.13
 66  10.2695  54412.50    -0.08  -26577.73    -0.03
 67  10.2695  54412.02    -0.01  -26577.49     0.19

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.

04TF282    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        82.298    82.324    82.271
ecceobj         0.521     0.521     0.521
incobj         23.127    23.127    23.127
qmin           37.994    38.035    37.636
qmax          126.373   126.128   126.521
amean          80.846    80.843    80.846
amin           79.699    79.701    79.716
amax           82.573    82.496    82.486
emean           0.514     0.514     0.517
emin            0.499     0.501     0.503
emax            0.530     0.529     0.534
imean          24.045    24.053    23.742
imin           23.420    23.462    22.950
imax           24.841    24.643    24.473
excite_mean     0.656     0.656     0.656
fracstop        1.000     1.000     1.000
cjmean          2.940     2.939     2.939

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       232.5     245.2     212.4
kozaiamp        180.0     180.0     180.0