Orbit Fit and Astrometric record for 05TN74

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: 05TN74    
# Created Fri Nov 15 02:08:58 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   79 observations of   79
# Arc:  17.14y
# First observation: 2000/10/02
#  Last observation: 2017/11/21
# Chi-squared of fit:   176.28 DOF:  152 RMS:  0.26
# Min/Max residuals:    -0.98    0.79
# Exact a, adot, b, bdot, g, gdot:
  1.799729E-05  3.490368E-02  1.237553E-06 -1.322597E-03  3.010003E-02 -5.508932E-03
# Covariance matrix:
  1.6995E-13 -3.2053E-14 -3.7555E-15  1.0257E-15  3.5741E-15 -3.2423E-14
 -3.2053E-14  7.8579E-15  1.0322E-15 -2.8224E-16  1.7465E-15  8.8824E-15
 -3.7555E-15  1.0322E-15  7.2098E-14 -5.4754E-15  1.4994E-16  1.2505E-15
  1.0257E-15 -2.8224E-16 -5.4754E-15  5.2395E-16 -4.8619E-17 -3.4176E-16
  3.5741E-15  1.7465E-15  1.4994E-16 -4.8619E-17  6.4217E-14  6.0869E-16
 -3.2423E-14  8.8824E-15  1.2505E-15 -3.4176E-16  6.0869E-16  1.0777E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.074290   -3.073685   -0.212081    0.001079   -0.971921  2451819.845543
# Heliocentric elements and errors
Epoch:              2451820.5000  =  2000/10/03
Mean Anomaly:          331.88667 +/-     0.003
Argument of Peri:      224.32001 +/-     0.004
Long of Asc Node:      179.20337 +/-     0.000
Inclination:             2.16375 +/-     0.000
Eccentricity:         0.24904809 +/-    0.0000
Semi-Major Axis:     42.74308037 +/-    0.0019
Time of Perihelion: 2459791.3921 +/-       6.5
Perihelion:          32.09799781 +/-    0.0018
Aphelion:            53.38816293 +/-    0.0026
Period (y)              279.4518 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.16200747 +/-    0.0003
Ecliptic Y           -1.61662478 +/-    0.0000
Ecliptic Z            0.04312872 +/-    0.0000
Ecliptic XDOT        -0.00033749 +/-    0.0000
Ecliptic YDOT         0.00320205 +/-    0.0000
Ecliptic ZDOT        -0.00012079 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.20035787 +/-    0.0003
Geocenter to KBO     33.22268732 +/-    0.0003
# Hcoef:  7.54

The following table shows the complete astrometric record for 05TN74. 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 (05TN74) followed by the observatory code and reference code for the source of the astrometry.

2000 10  02.344800 23 48 36.00   -01 09 14.3   22.0V 05TN74    645  C~2JxD      
2000 10  02.345630 23 48 36.00   -01 09 14.3   21.9V 05TN74    645  C~2JxD      
2000 10  02.348117 23 48 36.00   -01 09 14.3         05TN74    645  C~2JxD      
2002 10  30.205211 00 01 30.63   +00 04 19.7   22.5V 05TN74    645  C~2JxD      
2002 10  30.206040 00 01 30.63   +00 04 19.7   22.1V 05TN74    645  C~2JxD      
2002 10  30.208528 00 01 30.64   +00 04 19.7   23.6V 05TN74    645  C~2JxD      
2003 09  26.288359 00 11 56.54   +01 07 29.2   22.7V 05TN74    645  C~2JxD      
2003 09  26.289188 00 11 56.53   +01 07 29.2   21.9V 05TN74    645  C~2JxD      
2003 09  26.291676 00 11 56.54   +01 07 29.2   23.5V 05TN74    645  C~2JxD      
2003 10  23.223727 00 09 38.56   +00 52 12.9         05TN74    645  C~1tfA      
2003 10  23.224664 00 09 38.55   +00 52 12.9         05TN74    645  C~1tfA      
2003 10  23.226690 00 09 38.53   +00 52 12.8         05TN74    645  C~1tfA      
2003 11  19.139144 00 07 58.89   +00 41 09.7   22.6V 05TN74    645  C~1tfA      
2003 11  19.139977 00 07 58.89   +00 41 09.7         05TN74    645  C~1tfA      
2003 11  19.142465 00 07 58.88   +00 41 09.7         05TN74    645  C~1tfA      
2005 10  08.04350  00 26 22.33   +02 30 28.3   22.1R 05TN74    304  Co7672      
2005 10  08.08605  00 26 22.09   +02 30 26.8         05TN74    304  Co7672      
2005 10  08.12454  00 26 21.87   +02 30 25.2   22.0R 05TN74    304  Co7672      
2005 10  25.10432  00 24 55.07   +02 20 52.7         05TN74    304  Co7672      
2005 10  25.13750  00 24 54.86   +02 20 52.4   22.2R 05TN74    304  Co7672      
2005 11  03.07866  00 24 14.41   +02 16 27.1         05TN74    304  Cq3855      
2005 11  03.10677  00 24 14.34   +02 16 27.0         05TN74    304  Cq3855      
2005 11  04.09321  00 24 10.19   +02 15 59.4         05TN74    304  Cq3855      
2005 11  04.10939  00 24 10.04   +02 15 58.3         05TN74    304  Cq3855      
2005 11  28.03229  00 22 53.86   +02 07 38.0         05TN74    304  Cq3855      
2005 11  28.08780  00 22 53.72   +02 07 37.0   22.6R 05TN74    304  Cq3855      
2005 11  30.02219  00 22 49.93   +02 07 12.4   22.5R 05TN74    304  Cq3855      
2006 08  21.23514  00 38 10.66   +03 41 54.7   21.3R 05TN74    807  Cs2756      
2006 08  21.30780  00 38 10.38   +03 41 52.8         05TN74    807  Cs2756      
2006 08  22.21439  00 38 07.05   +03 41 30.3         05TN74    807  Cs2756      
2007 07  12.31367  00 47 09.34   +04 34 56.5         05TN74    304  Cv1998      
2007 07  12.40155  00 47 09.38   +04 34 56.7         05TN74    304  Cv1998      
2008 10  03.382164 00 50 40.46   +04 50 01.1   22.7V 05TN74    645  C~2JxD      
2008 10  03.382993 00 50 40.46   +04 50 01.1   21.9V 05TN74    645  C~2JxD      
2008 10  03.385481 00 50 40.46   +04 50 01.1         05TN74    645  C~2JxD      
2010 09  17.34393  01 08 29.88   +06 30 51.0   22.3R 05TN74    688  C~0NGk      
2010 09  17.39499  01 08 29.63   +06 30 49.8         05TN74    688  C~0NGk      
2010 10  06.45450  01 06 48.336  +06 20 05.44  22.6G 05TN74    F51  C~2r7G      
2010 10  13.44447  01 06 09.366  +06 16 00.05  22.3G 05TN74    F51  C~2r7G      
2010 10  13.45965  01 06 09.271  +06 15 59.44  22.6G 05TN74    F51  C~2r7G      
2010 10  13.47500  01 06 09.178  +06 15 59.04  22.4G 05TN74    F51  C~2r7G      
2010 10  13.48894  01 06 09.109  +06 15 58.46  22.4G 05TN74    F51  C~2r7G      
2010 11  01.28609  01 04 27.598  +06 05 23.62  23.2G 05TN74    F51  C~2r7G      
2010 11  01.30136  01 04 27.522  +06 05 23.13  22.9G 05TN74    F51  C~2r7G      
2010 11  01.31885  01 04 27.435  +06 05 22.92  22.0G 05TN74    F51  C~2r7G      
2012 10  08.51301  01 23 15.614  +07 49 32.13  22.4G 05TN74    F51  C~2r7G      
2012 10  17.39291  01 22 25.500  +07 44 25.60  22.3G 05TN74    F51  C~2r7G      
2012 10  17.40632  01 22 25.408  +07 44 25.29  22.4G 05TN74    F51  C~2r7G      
2013 10  02.42558  01 32 17.973  +08 37 58.81  22.4G 05TN74    F51  C~2r7G      
2013 10  02.44050  01 32 17.891  +08 37 58.59  22.7G 05TN74    F51  C~2r7G      
2013 10  27.33543  01 29 57.723  +08 23 56.81  22.7G 05TN74    F51  C~2r7G      
2013 10  27.35092  01 29 57.631  +08 23 56.30  21.7G 05TN74    F51  C~2r7G      
2013 10  27.36650  01 29 57.544  +08 23 55.80  23.0G 05TN74    F51  C~2r7G      
2013 10  27.38210  01 29 57.465  +08 23 55.55  22.1G 05TN74    F51  C~2r7G      
2013 11  25.27155  01 27 33.806  +08 09 51.82  22.7G 05TN74    F51  C~2r7G      
2013 11  25.28656  01 27 33.755  +08 09 51.40  22.4G 05TN74    F51  C~2r7G      
2014 09  19.42451  01 41 56.403  +09 29 02.23  22.8G 05TN74    F51  C~2r7G      
2014 09  23.44356  01 41 37.026  +09 27 04.58  23.3G 05TN74    F51  C~2r7G      
2014 09  29.53798  01 41 05.864  +09 23 57.02  22.8G 05TN74    F51  C~2r7G      
2014 10  25.48114  01 38 40.358  +09 09 37.05  22.4G 05TN74    F51  C~2r7G      
2014 11  18.26066  01 36 33.104  +08 57 22.51  22.7G 05TN74    F51  C~2r7G      
2015 12  31.29157  01 42 51.140  +09 29 18.44  23.0G 05TN74    F51  C~2r7G      
2016 10  06.51423  01 57 39.911  +10 46 42.85  22.3G 05TN74    F51  C~2r7G      
2016 10  06.53923  01 57 39.813  +10 46 42.20  22.2G 05TN74    F51  C~2r7G      
2016 10  06.55179  01 57 39.724  +10 46 41.45  23.0G 05TN74    F51  C~2r7G      
2016 10  26.29986  01 55 46.808  +10 36 04.13  22.9G 05TN74    F51  C~2r7G      
2016 10  27.30318  01 55 40.950  +10 35 31.46  22.7G 05TN74    F51  C~2r7G      
2016 10  29.50058  01 55 28.172  +10 34 20.61  22.6G 05TN74    F51  C~2r7G      
2017 02  14.23750  01 52 31.207  +10 20 00.80  23.2G 05TN74    F51  C~2r7G      
2017 09  23.43192  02 07 30.376  +11 35 17.94  22.3G 05TN74    F51  C~2r7G      
2017 09  23.44286  02 07 30.317  +11 35 17.45  22.6G 05TN74    F51  C~2r7G      
2017 09  23.45380  02 07 30.274  +11 35 17.27  22.7G 05TN74    F51  C~2r7G      
2017 09  23.46485  02 07 30.235  +11 35 16.98  22.7G 05TN74    F51  C~2r7G      
2017 09  27.62410  02 07 10.323  +11 33 23.70  22.1G 05TN74    F51  C~2r7G      
2017 11  07.45954  02 03 20.640  +11 12 18.79  22.9G 05TN74    F51  C~2r7G      
2017 11  21.41911  02 02 04.755  +11 05 34.46  22.6G 05TN74    F51  C~2r7G      
2017 11  21.43061  02 02 04.693  +11 05 34.33  22.6G 05TN74    F51  C~2r7G      
2017 11  21.44220  02 02 04.637  +11 05 33.98  22.6G 05TN74    F51  C~2r7G      
2017 11  21.45375  02 02 04.575  +11 05 33.67  22.4G 05TN74    F51  C~2r7G      

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     0.22       0.00    -0.34
  2   0.0000      0.00     0.29       0.00    -0.31
  3   0.0000      0.00     0.48       0.00    -0.22
  4   2.0749      0.00    -0.03       0.00    -0.33
  5   2.0749      0.00     0.02       0.00    -0.31
  6   2.0749      0.00     0.33       0.00    -0.24
  7   2.9814      0.00     0.11       0.00    -0.27
  8   2.9814      0.00     0.03       0.00    -0.24
  9   2.9814      0.00     0.38       0.00    -0.15
 10   3.0551      0.00     0.11       0.00    -0.19
 11   3.0551      0.00     0.02       0.00    -0.16
 12   3.0551      0.00    -0.13       0.00    -0.19
 13   3.1288      0.00    -0.25       0.00     0.50
 14   3.1288      0.00    -0.22       0.00     0.52
 15   3.1288      0.00    -0.27       0.00     0.56
 16   5.0149      0.00    -0.48       0.00     0.55
 17   5.0150      0.00    -0.61       0.00     0.55
 18   5.0151      0.00    -0.76       0.00     0.30
 19   5.0616      0.00     0.25       0.00    -0.98
 20   5.0617      0.00    -0.47       0.00    -0.24
 21   5.0862      0.00    -0.47       0.00     0.11
 22   5.0863      0.00     0.31       0.00     0.79
 23   5.0890      0.00     0.31       0.00     0.44
 24   5.0890      0.00    -0.90       0.00    -0.21
 25   5.1545      0.00     0.32       0.00     0.29
 26   5.1547      0.00     0.03       0.00     0.05
 27   5.1600      0.00     0.23       0.00     0.56
 28   5.8833      0.00     0.02       0.00    -0.10
 29   5.8835      0.00    -0.09       0.00    -0.21
 30   5.8860      0.00     0.07       0.00    -0.10
 31   6.7734      0.00     0.12       0.00     0.00
 32   6.7736      0.00     0.16       0.00     0.07
 33   8.0028      0.00     0.07       0.00     0.03
 34   8.0028      0.00     0.14       0.00     0.06
 35   8.0028      0.00     0.35       0.00     0.14
 36   9.9576      0.00    -0.28       0.00    -0.19
 37   9.9577      0.00    -0.16       0.00     0.23
 38  10.0099      0.00     0.18       0.00    -0.16
 39  10.0290      0.00     0.16       0.00    -0.11
 40  10.0291      0.00     0.03       0.00    -0.19
 41  10.0291      0.00    -0.05       0.00    -0.05
 42  10.0291      0.00     0.10       0.00    -0.14
 43  10.0806      0.00    -0.08       0.00    -0.16
 44  10.0806      0.00    -0.03       0.00    -0.17
 45  10.0807      0.00     0.03       0.00     0.18
 46  12.0169      0.00     0.11       0.00     0.06
 47  12.0412      0.00     0.18       0.00    -0.20
 48  12.0412      0.00    -0.04       0.00    -0.04
 49  12.9995      0.00     0.16       0.00     0.20
 50  12.9996      0.00     0.17       0.00     0.48
 51  13.0677      0.00     0.05       0.00     0.07
 52  13.0678      0.00    -0.01       0.00     0.07
 53  13.0678      0.00     0.02       0.00     0.09
 54  13.0679      0.00     0.17       0.00     0.36
 55  13.1470      0.00    -0.15       0.00    -0.05
 56  13.1470      0.00     0.02       0.00    -0.12
 57  13.9633      0.00    -0.01       0.00     0.11
 58  13.9743      0.00     0.17       0.00     0.01
 59  13.9909      0.00     0.04       0.00    -0.17
 60  14.0620      0.00     0.29       0.00    -0.19
 61  14.1271      0.00    -0.15       0.00     0.48
 62  15.2442      0.00    -0.28       0.00    -0.09
 63  16.0114      0.00    -0.40       0.00     0.00
 64  16.0115      0.00     0.22       0.00     0.14
 65  16.0115      0.00    -0.06       0.00    -0.22
 66  16.0656      0.00     0.17       0.00    -0.10
 67  16.0683      0.00    -0.08       0.00    -0.19
 68  16.0743      0.00     0.04       0.00     0.05
 69  16.3693      0.00     0.27       0.00    -0.07
 70  16.9749      0.00     0.03       0.00     0.07
 71  16.9749      0.00    -0.08       0.00    -0.13
 72  16.9750      0.00     0.06       0.00    -0.02
 73  16.9750      0.00     0.26       0.00    -0.02
 74  16.9864      0.00     0.02       0.00     0.08
 75  17.0982      0.00    -0.13       0.00    -0.22
 76  17.1364      0.00    -0.09       0.00    -0.20
 77  17.1364      0.00    -0.13       0.00    -0.02
 78  17.1365      0.00    -0.07       0.00    -0.06
 79  17.1365      0.00    -0.10       0.00    -0.06

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.

05TN74    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.830    42.830    42.831
ecceobj         0.250     0.250     0.250
incobj          2.163     2.163     2.163
qmin           31.709    31.710    31.709
qmax           53.614    53.606    53.618
amean          42.327    42.327    42.327
amin           41.817    41.818    41.815
amax           42.908    42.912    42.926
emean           0.228     0.223     0.213
emin            0.203     0.183     0.121
emax            0.250     0.250     0.250
imean           4.466     5.020     5.720
imin            2.236     2.236     2.236
imax            6.059     7.541    11.555
excite_mean     0.242     0.242     0.242
fracstop        1.000     1.000     1.000
cjmean          3.012     3.013     3.013

libcent 0       181.8     181.3     183.0
libamp  0       108.7     110.4     143.3
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       197.0     204.6     219.2
kozaiamp         45.3      50.7      70.8