Orbit Fit and Astrometric record for 483002

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: 483002    
# Created Sat Dec 16 02:36:53 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   94 observations of   94
# Arc:  18.02y
# First observation: 1998/09/19
#  Last observation: 2016/09/26
# Chi-squared of fit:    81.02 DOF:  182 RMS:  0.16
# Min/Max residuals:    -1.59    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.114383E-05  1.645163E-02 -8.891137E-06 -1.265505E-02  2.220759E-02 -1.550987E-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
   -5.048468   12.661231    0.281383   -0.084326   -0.951878  2451075.836400
# Heliocentric elements and errors
Epoch:              2451076.5000  =  1998/09/20
Mean Anomaly:          294.43067 +/-     0.000
Argument of Peri:      262.83911 +/-     0.000
Long of Asc Node:      185.89584 +/-     0.000
Inclination:            37.76374 +/-     0.000
Eccentricity:         0.08450634 +/-    0.0000
Semi-Major Axis:     47.35076507 +/-    0.0000
Time of Perihelion: 2472752.8999 +/-       0.0
Perihelion:          43.34932530 +/-    0.0000
Aphelion:            51.35220484 +/-    0.0000
Period (y)              325.8357 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.76651775 +/-    0.0000
Ecliptic Y            9.76573794 +/-    0.0000
Ecliptic Z           -3.96291966 +/-    0.0000
Ecliptic XDOT        -0.00076424 +/-    0.0000
Ecliptic YDOT         0.00191615 +/-    0.0000
Ecliptic ZDOT        -0.00153734 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.99043771 +/-    0.0000
Geocenter to KBO     45.02972305 +/-    0.0000
# Hcoef:  5.76

The following table shows the complete astrometric record for 483002. 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 (483002) followed by the observatory code and reference code for the source of the astrometry.

1998 09  19.335669 00 54 26.62   +00 21 00.7   21.9V 483002    645  C~25Rc      
1998 09  19.336498 00 54 26.62   +00 21 00.5   21.8V 483002    645  C~25Rc      
1998 09  19.338986 00 54 26.60   +00 21 00.5   22.2V 483002    645  C~25Rc      
2000 10  02.396215 01 02 48.70   -00 22 58.0   21.7V 483002    645  C~25Rc      
2000 10  02.397044 01 02 48.69   -00 22 57.8   21.5V 483002    645  C~25Rc      
2000 10  02.399532 01 02 48.69   -00 22 57.9   22.3V 483002    645  C~25Rc      
2001 10  25.329631 01 05 54.95   -00 53 22.0   21.8V 483002    645  C~25Rc      
2001 10  25.330460 01 05 54.94   -00 53 21.9   21.6V 483002    645  C~25Rc      
2001 10  25.332948 01 05 54.93   -00 53 22.0   22.5V 483002    645  C~25Rc      
2001 11  12.206748 01 04 48.70   -01 01 06.4   22.0V 483002    645  C~25Rc      
2001 11  12.207578 01 04 48.69   -01 01 06.4   21.8V 483002    645  C~25Rc      
2001 11  12.210066 01 04 48.66   -01 01 06.6   22.7V 483002    645  C~25Rc      
2001 11  18.242332 01 04 29.31   -01 03 12.6   22.0V 483002    645  C~25Rc      
2001 11  18.243161 01 04 29.32   -01 03 12.6   21.7V 483002    645  C~25Rc      
2001 11  18.245649 01 04 29.30   -01 03 12.7   22.4V 483002    645  C~25Rc      
2002 09  05.365060 01 13 48.74   -00 43 48.1   21.3V 483002    645  C~25Rc      
2002 09  05.365890 01 13 48.73   -00 43 48.1   21.1V 483002    645  C~25Rc      
2002 09  05.368377 01 13 48.73   -00 43 48.0   21.7V 483002    645  C~25Rc      
2002 10  11.366361 01 11 32.51   -01 04 21.4   21.5V 483002    645  C~25Rc      
2002 10  11.367190 01 11 32.51   -01 04 21.5   21.6V 483002    645  C~25Rc      
2002 10  11.369678 01 11 32.50   -01 04 21.6   22.1V 483002    645  C~25Rc      
2002 10  30.252894 01 10 15.65   -01 13 57.6   21.9V 483002    645  C~25Rc      
2002 10  30.253723 01 10 15.64   -01 13 57.8   21.7V 483002    645  C~25Rc      
2002 10  30.256211 01 10 15.63   -01 13 57.7   22.0V 483002    645  C~25Rc      
2003 09  28.342972 01 17 06.90   -01 15 17.0   21.9V 483002    645  C~25Rc      
2003 09  28.343801 01 17 06.90   -01 15 17.1   21.8V 483002    645  C~25Rc      
2003 09  28.346289 01 17 06.88   -01 15 17.2   22.2V 483002    645  C~25Rc      
2008 10  31.317136 01 38 21.47   -03 05 44.7   21.9V 483002    645  C~25Rc      
2008 10  31.317965 01 38 21.46   -03 05 44.7   22.0V 483002    645  C~25Rc      
2008 10  31.320453 01 38 21.45   -03 05 44.7   22.3V 483002    645  C~25Rc      
2013 11  03.07596  02 02 14.87   -04 38 44.9         483002    W84  C~2Jbt      
2013 11  03.13835  02 02 14.60   -04 38 46.5   21.9r 483002    W84  C~2Jbt      
2013 11  03.24160  02 02 14.15   -04 38 49.2         483002    W84  C~2Jbt      
2014 08  19.376470 02 11 13.93   -04 12 43.8         483002    W84  C~1YfK      
2014 08  19.377836 02 11 13.93   -04 12 43.8         483002    W84  C~1YfK      
2014 09  15.306146 02 10 18.70   -04 29 15.8   21.7z 483002    W84  C~1wzB      
2014 11  23.263022 02 05 45.331  -05 03 54.50  21.9i 483002    568  C~2SBz      
2014 11  23.328500 02 05 45.080  -05 03 55.50  21.8i 483002    568  C~2SBz      
2014 11  23.459204 02 05 44.578  -05 03 57.39  21.8i 483002    568  C~2SBz      
2014 11  23.464811 02 05 44.561  -05 03 57.52  21.8i 483002    568  C~2SBz      
2014 11  23.474241 02 05 44.525  -05 03 57.62  21.8i 483002    568  C~2SBz      
2014 11  25.438877 02 05 37.247  -05 04 25.29  22.2g 483002    568  C~2SBz      
2014 11  25.450829 02 05 37.202  -05 04 25.44  22.2g 483002    568  C~2SBz      
2014 11  25.469399 02 05 37.133  -05 04 25.71  22.2g 483002    568  C~2SBz      
2014 12  16.150266 02 04 33.15   -05 06 49.8   22.5g 483002    W84  C~1wzB      
2015 01  16.070810 02 03 55.16   -05 02 15.0   22.1r 483002    W84  C~1wzB      
2015 01  19.064028 02 03 55.77   -05 01 20.3   22.5g 483002    W84  C~1wzB      
2015 01  20.062072 02 03 56.16   -05 01 01.1   22.4r 483002    W84  C~1wzB      
2015 01  21.051447 02 03 56.61   -05 00 41.7   22.2i 483002    W84  C~1wzB      
2015 01  21.052812 02 03 56.61   -05 00 41.8   22.5z 483002    W84  C~1wzB      
2015 08  14.419763 02 16 07.16   -04 27 43.4   22.5g 483002    W84  C~1YfK      
2015 08  14.421968 02 16 07.16   -04 27 43.5   21.9r 483002    W84  C~1YfK      
2015 08  14.424329 02 16 07.16   -04 27 43.6   22.1i 483002    W84  C~1YfK      
2015 08  14.428137 02 16 07.15   -04 27 43.5   21.9z 483002    W84  C~1YfK      
2015 08  18.268154 02 16 04.53   -04 29 53.2   22.6g 483002    W84  C~1YfK      
2015 08  18.270359 02 16 04.54   -04 29 53.2   22.1r 483002    W84  C~1YfK      
2015 08  18.272720 02 16 04.53   -04 29 53.3   22.1i 483002    W84  C~1YfK      
2015 08  18.276516 02 16 04.52   -04 29 53.5   22.1z 483002    W84  C~1YfK      
2015 08  22.265110 02 16 00.52   -04 32 12.4   22.6g 483002    W84  C~1YfK      
2015 08  22.267303 02 16 00.52   -04 32 12.5   21.9r 483002    W84  C~1YfK      
2015 08  22.269653 02 16 00.52   -04 32 12.4   22.2i 483002    W84  C~1YfK      
2015 08  22.273449 02 16 00.51   -04 32 12.5   21.7z 483002    W84  C~1YfK      
2015 09  03.229236 02 15 41.08   -04 39 30.7   22.0i 483002    W84  C~1YfK      
2015 09  03.233021 02 15 41.07   -04 39 30.9   22.0z 483002    W84  C~1YfK      
2015 09  11.369149 02 15 21.89   -04 44 41.0   22.6g 483002    W84  C~1YfK      
2015 09  11.371354 02 15 21.87   -04 44 41.1   22.0r 483002    W84  C~1YfK      
2015 09  11.373727 02 15 21.87   -04 44 41.1   21.9i 483002    W84  C~1YfK      
2015 09  11.377535 02 15 21.86   -04 44 41.4   22.0z 483002    W84  C~1YfK      
2015 09  21.211510 02 14 52.91   -04 51 00.5   22.5g 483002    W84  C~1YfK      
2015 09  21.213750 02 14 52.90   -04 51 00.6   21.9r 483002    W84  C~1YfK      
2015 09  21.216134 02 14 52.90   -04 51 00.7   21.7i 483002    W84  C~1YfK      
2015 09  21.219977 02 14 52.88   -04 51 01.0   21.9z 483002    W84  C~1YfK      
2015 10  06.281047 02 13 58.65   -05 00 26.7   22.3g 483002    W84  C~1YfK      
2015 10  06.283264 02 13 58.64   -05 00 26.8   21.8r 483002    W84  C~1YfK      
2015 10  06.285613 02 13 58.63   -05 00 27.0   21.9i 483002    W84  C~1YfK      
2015 12  04.068044 02 09 59.06   -05 24 13.5   21.8i 483002    W84  C~1iHJ      
2015 12  18.138877 02 09 18.43   -05 25 03.8   21.8z 483002    W84  C~1iHJ      
2016 08  24.256944 02 20 47.64   -04 51 43.7   21.8z 483002    W84  C~2Bl0      
2016 08  25.386748 02 20 46.12   -04 52 24.9   22.1r 483002    W84  C~2Bl0      
2016 08  25.388808 02 20 46.12   -04 52 25.1   21.9i 483002    W84  C~2Bl0      
2016 08  25.391458 02 20 46.12   -04 52 25.3   21.9z 483002    W84  C~2Bl0      
2016 08  29.244745 02 20 40.26   -04 54 48.0   21.9r 483002    W84  C~2Bl0      
2016 08  29.246817 02 20 40.25   -04 54 48.1   21.9i 483002    W84  C~2Bl0      
2016 08  29.249444 02 20 40.24   -04 54 48.2   21.8z 483002    W84  C~2Bl0      
2016 09  02.347257 02 20 32.76   -04 57 23.2   22.0r 483002    W84  C~2Bl0      
2016 09  02.349317 02 20 32.76   -04 57 23.3   21.9i 483002    W84  C~2Bl0      
2016 09  02.354618 02 20 32.75   -04 57 23.5   21.8z 483002    W84  C~2Bl0      
2016 09  06.234456 02 20 24.52   -04 59 52.2   22.0r 483002    W84  C~2Bl0      
2016 09  06.236528 02 20 24.51   -04 59 52.3   22.0i 483002    W84  C~2Bl0      
2016 09  06.239167 02 20 24.51   -04 59 52.4   22.0z 483002    W84  C~2Bl0      
2016 09  22.172153 02 19 40.12   -05 10 11.0   21.8r 483002    W84  C~2Bl0      
2016 09  22.174213 02 19 40.11   -05 10 11.1   21.7i 483002    W84  C~2Bl0      
2016 09  22.176863 02 19 40.10   -05 10 11.2   21.8z 483002    W84  C~2Bl0      
2016 09  26.230694 02 19 26.41   -05 12 47.2   21.8z 483002    W84  C~2Bl0      

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    -0.15       0.00    -1.59
  2   0.0000      0.00     0.21       0.00    -0.12
  3   0.0000      0.00     0.06       0.00    -0.04
  4   2.0371      0.00     0.15       0.00    -0.09
  5   2.0371      0.00     0.06       0.00     0.14
  6   2.0371      0.00     0.21       0.00     0.12
  7   3.0992      0.00     0.15       0.00    -0.04
  8   3.0992      0.00     0.05       0.00     0.08
  9   3.0992      0.00     0.05       0.00     0.05
 10   3.1482      0.00     0.09       0.00    -0.06
 11   3.1482      0.00    -0.02       0.00    -0.04
 12   3.1482      0.00    -0.34       0.00    -0.18
 13   3.1647      0.00    -0.05       0.00     0.02
 14   3.1647      0.00     0.14       0.00     0.04
 15   3.1647      0.00    -0.04       0.00    -0.01
 16   3.9618      0.00     0.03       0.00     0.00
 17   3.9618      0.00    -0.08       0.00     0.03
 18   3.9618      0.00     0.04       0.00     0.21
 19   4.0603      0.00    -0.04       0.00     0.01
 20   4.0603      0.00     0.01       0.00    -0.07
 21   4.0603      0.00     0.02       0.00    -0.08
 22   4.1120      0.00    -0.08       0.00     0.18
 23   4.1120      0.00    -0.18       0.00    -0.00
 24   4.1120      0.00    -0.18       0.00     0.17
 25   5.0240      0.00     0.17       0.00     0.15
 26   5.0240      0.00     0.22       0.00     0.08
 27   5.0240      0.00     0.07       0.00     0.07
 28  10.1163      0.00     0.08       0.00    -0.02
 29  10.1163      0.00    -0.02       0.00     0.00
 30  10.1163      0.00    -0.01       0.00     0.07
 31  15.1232      0.00     0.29       0.00    -0.03
 32  15.1233      0.00     0.29       0.00    -0.03
 33  15.1236      0.00     0.24       0.00    -0.08
 34  15.9152      0.00     0.05       0.00     0.12
 35  15.9152      0.00     0.07       0.00     0.17
 36  15.9890      0.00     0.07       0.00     0.11
 37  16.1778      0.00     0.09       0.00     0.02
 38  16.1779      0.00     0.08       0.00    -0.01
 39  16.1783      0.00     0.05       0.00     0.02
 40  16.1783      0.00     0.12       0.00    -0.03
 41  16.1783      0.00     0.12       0.00     0.01
 42  16.1837      0.00     0.09       0.00    -0.01
 43  16.1838      0.00     0.08       0.00    -0.00
 44  16.1838      0.00     0.08       0.00    -0.02
 45  16.2404      0.00     0.14       0.00     0.13
 46  16.3251      0.00     0.08       0.00     0.05
 47  16.3333      0.00    -0.01       0.00     0.11
 48  16.3360      0.00     0.12       0.00     0.13
 49  16.3387      0.00    -0.11       0.00     0.04
 50  16.3387      0.00    -0.12       0.00    -0.08
 51  16.9010      0.00     0.17       0.00    -0.07
 52  16.9010      0.00     0.19       0.00    -0.10
 53  16.9010      0.00     0.21       0.00    -0.12
 54  16.9010      0.00     0.10       0.00     0.10
 55  16.9115      0.00     0.11       0.00    -0.15
 56  16.9115      0.00     0.29       0.00    -0.08
 57  16.9115      0.00     0.17       0.00    -0.10
 58  16.9115      0.00     0.07       0.00    -0.17
 59  16.9225      0.00     0.11       0.00    -0.10
 60  16.9225      0.00     0.15       0.00    -0.12
 61  16.9225      0.00     0.19       0.00     0.06
 62  16.9225      0.00     0.11       0.00     0.10
 63  16.9552      0.00    -0.14       0.00     0.02
 64  16.9552      0.00    -0.17       0.00    -0.04
 65  16.9775      0.00     0.04       0.00     0.24
 66  16.9775      0.00    -0.17       0.00     0.23
 67  16.9775      0.00    -0.08       0.00     0.32
 68  16.9775      0.00    -0.07       0.00     0.17
 69  17.0045      0.00    -0.19       0.00     0.12
 70  17.0045      0.00    -0.23       0.00     0.11
 71  17.0045      0.00    -0.12       0.00     0.10
 72  17.0045      0.00    -0.23       0.00    -0.05
 73  17.0457      0.00     0.06       0.00    -0.03
 74  17.0457      0.00     0.05       0.00    -0.05
 75  17.0457      0.00     0.04       0.00    -0.17
 76  17.2067      0.00     0.16       0.00     0.11
 77  17.2452      0.00     0.01       0.00     0.15
 78  17.9300      0.00     0.22       0.00     0.06
 79  17.9331      0.00     0.01       0.00     0.17
 80  17.9331      0.00     0.06       0.00     0.04
 81  17.9331      0.00     0.12       0.00    -0.06
 82  17.9436      0.00    -0.02       0.00     0.11
 83  17.9436      0.00    -0.11       0.00     0.09
 84  17.9436      0.00    -0.20       0.00     0.09
 85  17.9549      0.00    -0.02       0.00    -0.03
 86  17.9549      0.00     0.05       0.00    -0.06
 87  17.9549      0.00     0.06       0.00    -0.05
 88  17.9655      0.00     0.02       0.00    -0.00
 89  17.9655      0.00    -0.06       0.00    -0.02
 90  17.9655      0.00     0.03       0.00    -0.02
 91  18.0091      0.00    -0.03       0.00     0.03
 92  18.0091      0.00    -0.08       0.00     0.01
 93  18.0091      0.00    -0.09       0.00     0.02
 94  18.0202      0.00     0.03       0.00    -0.04

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.

483002    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.366    47.366    47.366
ecceobj         0.087     0.087     0.087
incobj         37.776    37.776    37.776
qmin           42.569    42.560    42.572
qmax           51.811    51.810    51.824
amean          47.074    47.074    47.074
amin           46.704    46.704    46.707
amax           47.468    47.467    47.468
emean           0.080     0.080     0.080
emin            0.069     0.069     0.069
emax            0.092     0.092     0.092
imean          37.669    37.669    37.669
imin           37.465    37.466    37.469
imax           37.891    37.892    37.893
excite_mean     0.616     0.616     0.616
fracstop        1.000     1.000     1.000
cjmean          2.613     2.613     2.613

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       200.8     200.9     200.8
kozaiamp        180.0     180.0     180.0