Orbit Fit and Astrometric record for 07TA418

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: 07TA418   
# Created Fri Dec  3 02:10:37 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     70 observations of     70
# Arc:  11.24y
# First observation: 2006/09/14
#  Last observation: 2017/12/12
# Chi-squared of fit:    66.76 DOF:    134 RMS:  0.17
# Min/Max residuals:    -0.57    0.93
# Exact a, adot, b, bdot, g, gdot:
  1.963947E-05  3.354089E-02 -5.117354E-07 -9.627588E-05  2.715831E-02 -5.062164E-03
# Covariance matrix:
  1.0632E-13 -2.3051E-14  1.4615E-15 -3.2031E-16  3.0565E-14 -4.5939E-14
 -2.3051E-14  2.7082E-14  1.0876E-15 -2.3592E-16  2.3917E-14  6.8827E-14
  1.4615E-15  1.0876E-15  5.9645E-14 -7.0058E-15  3.6408E-15  2.7104E-15
 -3.2031E-16 -2.3592E-16 -7.0058E-15  1.2183E-15 -7.9381E-16 -5.8764E-16
  3.0565E-14  2.3917E-14  3.6408E-15 -7.9381E-16  7.8122E-14  5.9736E-14
 -4.5939E-14  6.8827E-14  2.7104E-15 -5.8764E-16  5.9736E-14  1.8337E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -22.409469   31.435701    0.646793   -0.294740   -0.715132  2453992.853414
# Heliocentric elements and errors
Epoch:              2453992.5000  =  2006/09/14
Mean Anomaly:          351.36989 +/-     0.001
Argument of Peri:      297.78775 +/-     0.002
Long of Asc Node:      121.67217 +/-     0.000
Inclination:            21.96365 +/-     0.000
Eccentricity:         0.49947790 +/-    0.0000
Semi-Major Axis:     71.86815396 +/-    0.0064
Time of Perihelion: 2459327.2852 +/-      29.1
Perihelion:          35.97159901 +/-    0.0043
Aphelion:           107.76470892 +/-    0.0100
Period (y)              609.2744 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.03826453 +/-    0.0003
Ecliptic Y           17.60206317 +/-    0.0002
Ecliptic Z          -14.03712381 +/-    0.0001
Ecliptic XDOT        -0.00216448 +/-    0.0000
Ecliptic YDOT         0.00263226 +/-    0.0000
Ecliptic ZDOT         0.00018552 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.53904409 +/-    0.0003
Geocenter to KBO     36.82128480 +/-    0.0004
# Hcoef:  7.23

The following table shows the complete astrometric record for 07TA418. 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 (07TA418) followed by the observatory code and reference code for the source of the astrometry.

2006 09  14.35266  02 27 55.70   -09 05 21.7   22.3R 07TA418   807  Cx2653      
2006 09  16.38925  02 27 49.51   -09 06 44.6   22.6R 07TA418   807  Cx2653      
2007 10  04.33334  02 34 05.08   -08 38 27.1   22.6R 07TA418   807  Cx2653      
2007 10  08.34192  02 33 47.74   -08 40 51.7   22.6R 07TA418   807  Cx2653      
2007 10  08.37703  02 33 47.59   -08 40 52.9   22.4I 07TA418   807  Cx2653      
2007 10  14.33609  02 33 20.37   -08 44 15.9   22.6R 07TA418   807  Cx2653      
2007 10  14.36201  02 33 20.25   -08 44 16.8   22.2I 07TA418   807  Cx2653      
2007 11  03.33264  02 31 41.42   -08 53 20.7   22.6R 07TA418   807  Cx2653      
2007 11  05.31594  02 31 31.35   -08 54 00.6   22.6R 07TA418   807  Cx2653      
2007 11  05.34573  02 31 31.19   -08 54 01.1   21.9I 07TA418   807  Cx2653      
2007 11  07.35201  02 31 21.01   -08 54 39.1   22.6R 07TA418   807  Cx2653      
2007 11  09.14120  02 31 11.99   -08 55 10.0   22.1I 07TA418   807  Cx2653      
2007 11  09.16289  02 31 11.89   -08 55 10.6   22.7R 07TA418   807  Cx2653      
2007 11  11.14855  02 31 01.89   -08 55 42.5   22.7R 07TA418   807  Cx2653      
2007 11  15.14721  02 30 42.00   -08 56 37.5   22.2I 07TA418   807  Cx2653      
2007 11  15.16015  02 30 41.93   -08 56 37.7   22.9R 07TA418   807  Cx2653      
2007 11  17.13643  02 30 32.25   -08 57 00.2   22.5R 07TA418   807  Cx2653      
2007 11  19.29311  02 30 21.79   -08 57 21.2   22.6R 07TA418   807  Cx2653      
2007 11  19.33174  02 30 21.60   -08 57 21.4   22.2I 07TA418   807  Cx2653      
2007 12  01.22981  02 29 27.24   -08 58 08.4   22.7R 07TA418   807  Cx2653      
2007 12  05.14711  02 29 10.89   -08 57 57.8   22.7R 07TA418   807  Cx2653      
2007 12  05.16972  02 29 10.80   -08 57 57.9   22.3I 07TA418   807  Cx2653      
2007 12  07.17487  02 29 02.78   -08 57 47.2   22.7R 07TA418   807  Cx2653      
2007 12  09.11873  02 28 55.28   -08 57 33.9   22.6R 07TA418   807  Cx2653      
2007 12  09.13668  02 28 55.20   -08 57 33.6   22.2I 07TA418   807  Cx2653      
2007 12  11.11958  02 28 47.81   -08 57 16.6   22.7R 07TA418   807  Cx2653      
2007 12  11.14056  02 28 47.73   -08 57 16.4   22.2I 07TA418   807  Cx2653      
2008 09  26.30726  02 41 58.60   -07 53 07.0   24.2R 07TA418   250  S~06BK      
2008 09  26.31421  02 41 58.58   -07 53 07.2         07TA418   250  S~06BK      
2008 09  26.32046  02 41 58.56   -07 53 07.5         07TA418   250  S~06BK      
2008 09  26.32740  02 41 58.53   -07 53 07.7         07TA418   250  S~06BK      
2011 10  18.48285  03 03 03.121  -05 58 20.19  23.3G 07TA418   F51  C~36kk      
2012 10  11.55592  03 11 08.027  -05 11 04.97  23.6G 07TA418   F51  C~36kk      
2012 10  11.55723  03 11 08.026  -05 11 05.16  23.3G 07TA418   F51  C~36kk      
2014 09  29.58190  03 27 12.310  -03 34 31.71  17.2G 07TA418   F51  C~36kk      
2014 10  07.45255  03 26 45.183  -03 39 07.32  22.5G 07TA418   F51  C~36kk      
2014 10  22.35370  03 25 41.95   -03 47 07.0   22.1R 07TA418   G37  C~1BxQ      
2014 10  22.44696  03 25 41.51   -03 47 09.7         07TA418   G37  C~1BxQ      
2014 10  29.46398  03 25 07.553  -03 50 24.40  23.1G 07TA418   F51  C~36kk      
2014 10  29.47637  03 25 07.472  -03 50 25.44  22.8G 07TA418   F51  C~36kk      
2014 11  28.46300  03 22 31.276  -03 58 53.00  22.5G 07TA418   F51  C~36kk      
2014 12  12.33782  03 21 23.726  -03 59 09.77  22.7G 07TA418   F51  C~36kk      
2015 01  19.27284  03 19 25.180  -03 47 18.91  24.0G 07TA418   F51  C~36kk      
2015 01  19.28547  03 19 25.155  -03 47 18.25  23.0G 07TA418   F51  C~36kk      
2015 01  19.29798  03 19 25.131  -03 47 17.69  22.7G 07TA418   F51  C~36kk      
2015 01  19.31047  03 19 25.126  -03 47 17.33  22.2G 07TA418   F51  C~36kk      
2015 01  21.22253  03 19 22.694  -03 46 14.95  23.0G 07TA418   F51  C~36kk      
2015 01  21.23515  03 19 22.669  -03 46 14.42  22.3G 07TA418   F51  C~36kk      
2015 01  21.24778  03 19 22.650  -03 46 14.18  22.9G 07TA418   F51  C~36kk      
2015 08  30.60194  03 35 38.663  -02 31 49.98  22.6G 07TA418   F51  C~36kk      
2015 10  24.47584  03 33 15.505  -03 02 37.93  22.4G 07TA418   F51  C~36kk      
2015 10  25.41073  03 33 11.096  -03 03 04.60  22.7G 07TA418   F51  C~36kk      
2015 11  17.39357  03 31 13.273  -03 11 30.61  22.9G 07TA418   F51  C~36kk      
2015 12  07.35546  03 29 29.667  -03 14 11.10  23.0G 07TA418   F51  C~36kk      
2015 12  07.36875  03 29 29.581  -03 14 10.93  22.5G 07TA418   F51  C~36kk      
2015 12  07.38202  03 29 29.532  -03 14 10.75  23.6G 07TA418   F51  C~36kk      
2015 12  07.39533  03 29 29.448  -03 14 11.09  22.3G 07TA418   F51  C~36kk      
2015 12  09.35880  03 29 19.909  -03 14 10.44  22.8G 07TA418   F51  C~36kk      
2015 12  09.37143  03 29 19.814  -03 14 10.34  22.5G 07TA418   F51  C~36kk      
2015 12  09.38405  03 29 19.752  -03 14 11.00  22.5G 07TA418   F51  C~36kk      
2015 12  09.39664  03 29 19.711  -03 14 10.10  22.8G 07TA418   F51  C~36kk      
2016 02  02.31359  03 26 47.934  -02 54 45.61  22.7G 07TA418   F51  C~36kk      
2017 01  16.26471  03 34 40.281  -02 19 06.65  22.7G 07TA418   F51  C~36kk      
2017 09  17.58621  03 50 38.971  -01 11 25.26  22.5G 07TA418   F51  C~36kk      
2017 09  17.59883  03 50 38.944  -01 11 25.64  23.1G 07TA418   F51  C~36kk      
2017 09  17.61145  03 50 38.917  -01 11 25.99  22.3G 07TA418   F51  C~36kk      
2017 09  17.62407  03 50 38.902  -01 11 26.48  22.6G 07TA418   F51  C~36kk      
2017 10  29.43812  03 48 17.345  -01 33 16.78  22.8G 07TA418   F51  C~36kk      
2017 12  05.42835  03 45 03.655  -01 42 35.15  22.5G 07TA418   F51  C~36kk      
2017 12  12.36808  03 44 28.772  -01 42 36.86  23.1G 07TA418   F51  C~36kk      

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    -0.05       0.00     0.08
     2   0.0056      0.00     0.24       0.00     0.01
     3   1.0540      0.00     0.03       0.00     0.06
     4   1.0650      0.00    -0.03       0.00    -0.03
     5   1.0651      0.00     0.09       0.00     0.00
     6   1.0814      0.00     0.00       0.00    -0.02
     7   1.0815      0.00     0.05       0.00    -0.07
     8   1.1362      0.00     0.18       0.00    -0.38
     9   1.1416      0.00     0.16       0.00    -0.01
    10   1.1417      0.00     0.05       0.00     0.07
    11   1.1472      0.00    -0.11       0.00    -0.09
    12   1.1521      0.00    -0.03       0.00     0.29
    13   1.1521      0.00     0.14       0.00     0.05
    14   1.1576      0.00    -0.08       0.00     0.01
    15   1.1685      0.00     0.01       0.00    -0.04
    16   1.1685      0.00    -0.07       0.00    -0.08
    17   1.1739      0.00     0.10       0.00    -0.09
    18   1.1799      0.00     0.10       0.00    -0.12
    19   1.1800      0.00     0.07       0.00     0.02
    20   1.2125      0.00    -0.01       0.00    -0.09
    21   1.2233      0.00    -0.00       0.00     0.00
    22   1.2233      0.00     0.05       0.00    -0.20
    23   1.2288      0.00    -0.08       0.00     0.02
    24   1.2341      0.00     0.08       0.00    -0.11
    25   1.2342      0.00    -0.07       0.00     0.05
    26   1.2396      0.00     0.02       0.00     0.00
    27   1.2397      0.00    -0.00       0.00     0.00
    28   2.0341      0.00    -0.19       0.00    -0.01
    29   2.0341      0.00    -0.11       0.00     0.06
    30   2.0341      0.00    -0.07       0.00    -0.00
    31   2.0342      0.00    -0.13       0.00     0.07
    32   5.0928      0.00    -0.17       0.00     0.03
    33   6.0758      0.00     0.12       0.00     0.02
    34   6.0759      0.00     0.19       0.00    -0.12
    35   8.0417      0.00    -0.27       0.00     0.17
    36   8.0632      0.00    -0.24       0.00     0.93
    37   8.1040      0.00    -0.09       0.00     0.08
    38   8.1043      0.00    -0.03       0.00     0.12
    39   8.1235      0.00     0.05       0.00     0.36
    40   8.1235      0.00    -0.22       0.00    -0.36
    41   8.2056      0.00     0.20       0.00     0.09
    42   8.2436      0.00    -0.14       0.00    -0.05
    43   8.3475      0.00     0.10       0.00    -0.25
    44   8.3475      0.00     0.01       0.00     0.00
    45   8.3476      0.00    -0.08       0.00     0.16
    46   8.3476      0.00     0.12       0.00     0.12
    47   8.3528      0.00     0.08       0.00    -0.14
    48   8.3529      0.00    -0.05       0.00    -0.03
    49   8.3529      0.00    -0.10       0.00    -0.21
    50   8.9589      0.00     0.08       0.00    -0.25
    51   9.1092      0.00     0.05       0.00     0.25
    52   9.1117      0.00     0.09       0.00    -0.04
    53   9.1747      0.00     0.19       0.00     0.04
    54   9.2293      0.00     0.14       0.00    -0.16
    55   9.2293      0.00    -0.15       0.00     0.02
    56   9.2294      0.00     0.12       0.00     0.21
    57   9.2294      0.00    -0.14       0.00    -0.12
    58   9.2348      0.00     0.35       0.00     0.18
    59   9.2348      0.00    -0.14       0.00     0.27
    60   9.2349      0.00    -0.14       0.00    -0.41
    61   9.2349      0.00     0.18       0.00     0.48
    62   9.3852      0.00    -0.08       0.00     0.34
    63  10.3406      0.00    -0.29       0.00    -0.13
    64  11.0095      0.00     0.17       0.00    -0.21
    65  11.0096      0.00     0.07       0.00    -0.17
    66  11.0096      0.00    -0.02       0.00    -0.10
    67  11.0096      0.00     0.06       0.00    -0.16
    68  11.1241      0.00     0.09       0.00     0.08
    69  11.2254      0.00     0.06       0.00    -0.57
    70  11.2444      0.00    -0.07       0.00     0.01

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.

07TA418    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        73.835    73.835    73.836
ecceobj         0.512     0.512     0.512
incobj         21.958    21.958    21.958
qmin           34.922    35.290    34.616
qmax          112.878   112.291   113.075
amean          72.678    72.560    72.587
amin           71.549    71.434    71.450
amax           74.283    74.231    74.167
emean           0.501     0.495     0.503
emin            0.481     0.478     0.485
emax            0.520     0.515     0.525
imean          20.757    21.321    20.599
imin           19.852    20.342    19.406
imax           21.967    22.392    21.661
excite_mean     0.614     0.615     0.614
fracstop        1.000     1.000     1.000
cjmean          2.929     2.927     2.927

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       202.8     197.0     196.1
kozaiamp        180.0     180.0     180.0