Orbit Fit and Astrometric record for 504847

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: 504847    
# Created Fri Dec 15 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  111 observations of  111
# Arc:  17.88y
# First observation: 1999/10/13
#  Last observation: 2017/08/30
# Chi-squared of fit:   109.46 DOF:  216 RMS:  0.18
# Min/Max residuals:    -0.90    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.787232E-05  2.570725E-02 -9.251073E-07 -2.930118E-03  2.505543E-02 -2.751089E-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
    1.814905   -6.590919   -0.435653    0.027931   -0.888617  2451464.767895
# Heliocentric elements and errors
Epoch:              2451464.5000  =  1999/10/13
Mean Anomaly:          327.11872 +/-     0.000
Argument of Peri:      208.94127 +/-     0.000
Long of Asc Node:      189.24213 +/-     0.000
Inclination:             6.73369 +/-     0.000
Eccentricity:         0.15449355 +/-    0.0000
Semi-Major Axis:     46.43358306 +/-    0.0000
Time of Perihelion: 2462020.3430 +/-       0.0
Perihelion:          39.25989387 +/-    0.0000
Aphelion:            53.60727225 +/-    0.0000
Period (y)              316.4146 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.56864797 +/-    0.0000
Ecliptic Y           -4.24512258 +/-    0.0000
Ecliptic Z            1.26400473 +/-    0.0000
Ecliptic XDOT         0.00002947 +/-    0.0000
Ecliptic YDOT         0.00283193 +/-    0.0000
Ecliptic ZDOT        -0.00032946 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.80979218 +/-    0.0000
Geocenter to KBO     39.91161848 +/-    0.0000
# Hcoef:  6.37

The following table shows the complete astrometric record for 504847. 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 (504847) followed by the observatory code and reference code for the source of the astrometry.

1999 10  13.267152 23 32 55.40   -00 56 59.3   21.9V 504847    645  C~2PjJ      
1999 10  13.267981 23 32 55.40   -00 56 59.3   21.6V 504847    645  C~2PjJ      
1999 10  13.270469 23 32 55.40   -00 56 59.3   23.0V 504847    645  C~2PjJ      
2000 10  02.338581 23 39 19.94   -00 26 06.7   22.5V 504847    645  C~2PjJ      
2000 10  02.339410 23 39 19.94   -00 26 06.6   21.9V 504847    645  C~2PjJ      
2000 10  02.341898 23 39 19.93   -00 26 06.8   23.1V 504847    645  C~2PjJ      
2001 10  14.287435 23 44 15.13   -00 05 55.8   22.5V 504847    645  C~2PjJ      
2001 10  14.288264 23 44 15.13   -00 05 55.8   22.2V 504847    645  C~2PjJ      
2001 10  14.290752 23 44 15.11   -00 05 55.7   22.8V 504847    645  C~2PjJ      
2001 10  15.300534 23 44 11.11   -00 06 24.7   21.9V 504847    645  C~2PjJ      
2001 10  15.301363 23 44 11.12   -00 06 24.6   21.8V 504847    645  C~2PjJ      
2001 10  15.303851 23 44 11.11   -00 06 24.8   22.5V 504847    645  C~2PjJ      
2002 10  10.297607 23 50 17.34   +00 22 11.1   22.5V 504847    645  C~2PjJ      
2002 10  10.298436 23 50 17.34   +00 22 11.1   22.3V 504847    645  C~2PjJ      
2002 10  10.300924 23 50 17.32   +00 22 10.9   22.7V 504847    645  C~2PjJ      
2002 10  31.192781 23 48 59.06   +00 12 40.2   22.5V 504847    645  C~2PjJ      
2002 10  31.193611 23 48 59.06   +00 12 40.1   22.1V 504847    645  C~2PjJ      
2002 10  31.196098 23 48 59.06   +00 12 40.1   23.0V 504847    645  C~2PjJ      
2003 09  28.287411 23 56 57.77   +00 54 37.8   22.4V 504847    645  C~2PjJ      
2003 09  28.288240 23 56 57.76   +00 54 37.6   21.8V 504847    645  C~2PjJ      
2003 09  28.290728 23 56 57.76   +00 54 37.5   23.0V 504847    645  C~2PjJ      
2003 10  18.168000 23 55 32.29   +00 44 33.9   22.4V 504847    645  C~2PjJ      
2003 10  18.168830 23 55 32.29   +00 44 33.9   22.2V 504847    645  C~2PjJ      
2003 10  18.171318 23 55 32.27   +00 44 33.7   23.0V 504847    645  C~2PjJ      
2003 10  24.204406 23 55 09.03   +00 41 45.7         504847    645  C~2PjJ      
2003 10  24.205236 23 55 09.03   +00 41 45.7         504847    645  C~2PjJ      
2003 10  24.207724 23 55 09.03   +00 41 45.7         504847    645  C~2PjJ      
2003 11  16.156013 23 54 00.50   +00 33 06.9   22.8V 504847    645  C~2PjJ      
2003 11  16.159330 23 54 00.48   +00 33 06.9   22.4V 504847    645  C~2PjJ      
2004 10  08.291882 00 01 58.19   +01 15 15.6   21.7V 504847    645  C~2PjJ      
2004 10  08.292711 00 01 58.21   +01 15 15.6   21.5V 504847    645  C~2PjJ      
2004 10  08.295199 00 01 58.20   +01 15 15.6   22.4V 504847    645  C~2PjJ      
2004 10  10.250418 00 01 49.72   +01 14 15.7   22.5V 504847    645  C~2PjJ      
2004 10  10.251247 00 01 49.72   +01 14 15.7   22.7V 504847    645  C~2PjJ      
2004 10  10.253735 00 01 49.70   +01 14 15.8   22.9V 504847    645  C~2PjJ      
2004 10  16.297604 00 01 24.20   +01 11 15.3   22.6V 504847    645  C~2PjJ      
2004 10  16.298433 00 01 24.20   +01 11 15.3   21.8V 504847    645  C~2PjJ      
2004 10  16.300921 00 01 24.20   +01 11 15.3   22.2V 504847    645  C~2PjJ      
2004 11  05.201616 00 00 12.19   +01 02 31.7         504847    645  C~2PjJ      
2004 11  05.202446 00 00 12.19   +01 02 31.6         504847    645  C~2PjJ      
2004 12  13.110133 23 59 14.31   +00 54 11.7   22.5V 504847    645  C~2PjJ      
2004 12  13.110962 23 59 14.31   +00 54 11.8   22.7V 504847    645  C~2PjJ      
2004 12  13.113450 23 59 14.30   +00 54 11.9   23.0V 504847    645  C~2PjJ      
2008 10  03.237906 00 25 51.31   +03 03 15.0   22.1V 504847    645  C~2PjJ      
2008 10  03.238320 00 25 51.31   +03 03 14.9   22.2V 504847    645  C~2PjJ      
2008 10  03.238735 00 25 51.31   +03 03 15.0   21.7V 504847    645  C~2PjJ      
2008 10  03.239150 00 25 51.31   +03 03 15.0   21.8V 504847    645  C~2PjJ      
2008 10  03.241223 00 25 51.29   +03 03 14.9   22.7V 504847    645  C~2PjJ      
2008 10  03.241637 00 25 51.29   +03 03 14.8   22.8V 504847    645  C~2PjJ      
2010 09  15.49322  00 39 11.042  +04 05 28.77  22.6w 504847    F51  C~1w3j      
2010 09  15.50247  00 39 10.999  +04 05 28.57  22.7w 504847    F51  C~1w3j      
2010 09  16.46807  00 39 06.813  +04 04 59.84  22.5w 504847    F51  C~1w3j      
2010 09  16.47908  00 39 06.749  +04 04 59.48  22.7w 504847    F51  C~1w3j      
2010 10  04.44882  00 37 45.255  +03 55 44.15  23.0w 504847    F51  C~1w3j      
2010 10  04.46282  00 37 45.195  +03 55 43.43  22.7w 504847    F51  C~1w3j      
2010 10  09.32397  00 37 22.789  +03 53 10.94  22.3r 504847    F51  C~1w3j      
2011 09  26.42729  00 44 24.691  +04 26 23.89  22.8w 504847    F51  C~1w3j      
2011 09  26.44131  00 44 24.632  +04 26 23.38  23.0w 504847    F51  C~1w3j      
2011 09  26.46163  00 44 24.516  +04 26 22.61  22.9w 504847    F51  C~1w3j      
2011 09  26.47607  00 44 24.451  +04 26 22.39  22.8w 504847    F51  C~1w3j      
2011 10  18.36310  00 42 43.891  +04 15 01.78  22.3i 504847    F51  C~1w3j      
2011 10  18.37587  00 42 43.820  +04 15 01.53  22.0i 504847    F51  C~1w3j      
2012 10  08.49355  00 49 28.182  +04 45 58.90  21.8i 504847    F51  C~1w3j      
2012 10  15.35925  00 48 56.460  +04 42 25.82  22.1w 504847    F51  C~1w3j      
2012 11  04.25203  00 47 30.826  +04 32 51.95  22.5w 504847    F51  C~1w3j      
2012 11  04.26614  00 47 30.775  +04 32 51.62  22.6w 504847    F51  C~1w3j      
2012 11  04.28022  00 47 30.723  +04 32 51.23  22.2w 504847    F51  C~1w3j      
2012 11  04.29442  00 47 30.666  +04 32 50.82  22.3w 504847    F51  C~1w3j      
2013 08  02.50855  00 59 26.197  +05 39 13.22  22.3r 504847    568  C~2NJL      
2013 08  02.55128  00 59 26.140  +05 39 12.73  22.3r 504847    568  C~2NJL      
2013 08  11.50755  00 59 11.094  +05 37 13.36  22.3r 504847    568  C~2NJL      
2013 08  30.42396  00 58 18.972  +05 30 56.89  22.2r 504847    568  C~2NJL      
2013 08  31.42817  00 58 15.521  +05 30 32.72  22.2r 504847    568  C~2NJL      
2013 08  31.47118  00 58 15.368  +05 30 31.71  22.3r 504847    568  C~2NJL      
2013 09  04.40817  00 58 01.267  +05 28 53.63  22.3r 504847    568  C~2NJL      
2013 09  04.45095  00 58 01.111  +05 28 52.53  22.2r 504847    568  C~2NJL      
2013 10  02.38980  00 56 01.753  +05 15 22.78  21.7w 504847    F51  C~1w3j      
2013 10  02.41957  00 56 01.619  +05 15 22.12  22.1w 504847    F51  C~1w3j      
2013 10  02.43448  00 56 01.501  +05 15 21.51  22.4w 504847    F51  C~1w3j      
2013 10  06.38359  00 55 43.179  +05 13 18.57  22.1r 504847    568  C~2NJL      
2013 10  06.44798  00 55 42.876  +05 13 16.53  22.1r 504847    568  C~2NJL      
2013 10  06.45762  00 55 42.826  +05 13 16.21  22.1r 504847    568  C~2NJL      
2013 10  06.46264  00 55 42.806  +05 13 16.09  22.1r 504847    568  C~2NJL      
2013 10  09.51275  00 55 28.550  +05 11 41.04  22.1r 504847    568  C~2NJL      
2013 10  27.32873  00 54 07.455  +05 02 42.25  22.5w 504847    F51  C~1w3j      
2013 10  31.23096  00 53 50.777  +05 00 51.96  22.2r 504847    568  C~2NJL      
2013 10  31.27407  00 53 50.592  +05 00 50.77  22.4r 504847    568  C~2NJL      
2013 10  31.31685  00 53 50.407  +05 00 49.57  22.2r 504847    568  C~2NJL      
2013 11  01.25731  00 53 46.485  +05 00 23.57  22.3r 504847    568  C~2NJL      
2013 11  01.37789  00 53 45.970  +05 00 20.27  22.2r 504847    568  C~2NJL      
2013 12  06.21068  00 51 57.413  +04 48 19.04  22.3r 504847    568  C~2NJL      
2014 06  27.59003  01 05 09.369  +06 04 48.78  22.4r 504847    568  C~2NJL      
2014 06  28.59510  01 05 11.449  +06 04 58.44  22.5r 504847    568  C~2NJL      
2014 07  24.54140  01 05 33.494  +06 05 50.48  22.3r 504847    568  C~2NJL      
2014 07  27.57207  01 05 32.059  +06 05 31.88  22.3r 504847    568  C~2NJL      
2014 08  22.57202  01 04 47.267  +05 59 34.52  22.3r 504847    568  C~2NJL      
2014 08  22.59325  01 04 47.196  +05 59 34.13  22.3r 504847    568  C~2NJL      
2014 08  28.43479  01 04 29.880  +05 57 29.71  20.8r 504847    568  C~2NJL      
2014 10  23.35625  01 00 30.679  +05 30 41.56  22.2r 504847    568  C~2NJL      
2014 10  23.37959  01 00 30.568  +05 30 40.87  22.2r 504847    568  C~2NJL      
2014 10  26.45174  01 00 16.758  +05 29 10.40  22.1r 504847    568  C~2NJL      
2014 10  27.39496  01 00 12.582  +05 28 43.02  22.2r 504847    568  C~2NJL      
2014 11  24.24776  00 58 27.336  +05 17 16.44  22.2r 504847    568  C~2NJL      
2014 11  25.24396  00 58 24.446  +05 16 57.58  22.3r 504847    568  C~2NJL      
2014 12  17.31515  00 57 41.160  +05 12 13.77  22.2r 504847    568  C~2NJL      
2015 01  17.27935  00 57 56.889  +05 13 38.80  22.4r 504847    568  C~2NJL      
2015 08  20.52313  01 10 57.042  +06 25 41.80  22.2r 504847    568  C~2NJL      
2017 07  24.60098  01 23 36.664  +07 20 21.60        504847    568  C~2NJL      
2017 08  25.51775  01 22 54.170  +07 14 02.02  22.4w 504847    568  C~2NJL      
2017 08  30.45989  01 22 40.104  +07 12 20.14  22.4w 504847    568  C~2NJL      
2017 08  30.50665  01 22 39.953  +07 12 19.08  22.5w 504847    568  C~2NJL      

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    -0.13       0.00    -0.90
  2   0.0000      0.00    -0.14       0.00    -0.26
  3   0.0000      0.00     0.00       0.00    -0.19
  4   0.9721      0.00     0.13       0.00    -0.31
  5   0.9721      0.00     0.19       0.00    -0.18
  6   0.9721      0.00     0.20       0.00    -0.31
  7   2.0042      0.00     0.14       0.00    -0.36
  8   2.0042      0.00     0.19       0.00    -0.34
  9   2.0042      0.00     0.04       0.00    -0.17
 10   2.0069      0.00     0.00       0.00    -0.26
 11   2.0069      0.00     0.20       0.00    -0.14
 12   2.0069      0.00     0.20       0.00    -0.27
 13   2.9926      0.00    -0.05       0.00    -0.12
 14   2.9926      0.00     0.00       0.00    -0.10
 15   2.9926      0.00    -0.14       0.00    -0.22
 16   3.0498      0.00     0.08       0.00    -0.25
 17   3.0498      0.00     0.12       0.00    -0.33
 18   3.0498      0.00     0.24       0.00    -0.27
 19   3.9590      0.00     0.08       0.00    -0.15
 20   3.9590      0.00    -0.01       0.00    -0.32
 21   3.9590      0.00     0.16       0.00    -0.35
 22   4.0134      0.00     0.09       0.00    -0.16
 23   4.0134      0.00     0.14       0.00    -0.13
 24   4.0134      0.00    -0.01       0.00    -0.26
 25   4.0299      0.00    -0.19       0.00    -0.27
 26   4.0299      0.00    -0.14       0.00    -0.25
 27   4.0300      0.00    -0.00       0.00    -0.19
 28   4.0928      0.00     0.33       0.00    -0.36
 29   4.0928      0.00     0.14       0.00    -0.31
 30   4.9884      0.00    -0.02       0.00    -0.26
 31   4.9884      0.00     0.33       0.00    -0.23
 32   4.9884      0.00     0.35       0.00    -0.16
 33   4.9938      0.00     0.23       0.00    -0.33
 34   4.9938      0.00     0.28       0.00    -0.31
 35   4.9938      0.00     0.15       0.00    -0.13
 36   5.0104      0.00    -0.43       0.00    -0.16
 37   5.0104      0.00    -0.38       0.00    -0.14
 38   5.0104      0.00    -0.22       0.00    -0.07
 39   5.0648      0.00     0.09       0.00     0.09
 40   5.0648      0.00     0.13       0.00     0.01
 41   5.1686      0.00     0.15       0.00    -0.30
 42   5.1686      0.00     0.15       0.00    -0.20
 43   5.1686      0.00    -0.00       0.00    -0.10
 44   8.9746      0.00     0.13       0.00    -0.05
 45   8.9746      0.00     0.16       0.00    -0.14
 46   8.9746      0.00     0.19       0.00    -0.02
 47   8.9746      0.00     0.22       0.00    -0.01
 48   8.9746      0.00     0.06       0.00    -0.05
 49   8.9746      0.00     0.09       0.00    -0.13
 50  10.9246      0.00     0.12       0.00     0.03
 51  10.9247      0.00     0.09       0.00     0.10
 52  10.9273      0.00     0.22       0.00     0.08
 53  10.9273      0.00    -0.00       0.00     0.05
 54  10.9765      0.00    -0.05       0.00     0.31
 55  10.9766      0.00     0.04       0.00     0.03
 56  10.9899      0.00    -0.09       0.00     0.08
 57  11.9539      0.00     0.19       0.00     0.02
 58  11.9539      0.00     0.29       0.00    -0.06
 59  11.9540      0.00    -0.04       0.00    -0.20
 60  11.9540      0.00    -0.00       0.00     0.03
 61  12.0140      0.00     0.08       0.00     0.07
 62  12.0140      0.00    -0.11       0.00     0.21
 63  12.9890      0.00    -0.23       0.00     0.16
 64  13.0078      0.00    -0.21       0.00    -0.01
 65  13.0622      0.00    -0.03       0.00    -0.03
 66  13.0623      0.00     0.05       0.00     0.01
 67  13.0623      0.00     0.12       0.00    -0.01
 68  13.0624      0.00     0.11       0.00    -0.05
 69  13.8049      0.00     0.05       0.00     0.01
 70  13.8050      0.00     0.07       0.00    -0.02
 71  13.8295      0.00     0.04       0.00    -0.05
 72  13.8813      0.00     0.14       0.00    -0.01
 73  13.8841      0.00     0.12       0.00    -0.05
 74  13.8842      0.00     0.11       0.00    -0.02
 75  13.8950      0.00     0.16       0.00     0.02
 76  13.8951      0.00     0.24       0.00     0.01
 77  13.9716      0.00    -0.23       0.00    -0.10
 78  13.9717      0.00    -0.12       0.00     0.17
 79  13.9717      0.00    -0.84       0.00     0.02
 80  13.9825      0.00     0.11       0.00    -0.00
 81  13.9827      0.00     0.16       0.00    -0.04
 82  13.9827      0.00     0.10       0.00    -0.06
 83  13.9827      0.00     0.16       0.00    -0.02
 84  13.9911      0.00     0.04       0.00    -0.07
 85  14.0399      0.00     0.02       0.00    -0.21
 86  14.0506      0.00     0.11       0.00    -0.01
 87  14.0507      0.00     0.10       0.00    -0.00
 88  14.0508      0.00     0.07       0.00    -0.01
 89  14.0534      0.00     0.15       0.00     0.01
 90  14.0537      0.00     0.10       0.00     0.02
 91  14.1491      0.00     0.12       0.00     0.00
 92  14.7059      0.00     0.06       0.00    -0.03
 93  14.7086      0.00     0.07       0.00     0.01
 94  14.7797      0.00     0.01       0.00     0.02
 95  14.7880      0.00     0.02       0.00     0.03
 96  14.8592      0.00     0.04       0.00    -0.01
 97  14.8592      0.00    -0.12       0.00     0.02
 98  14.8752      0.00     0.24       0.00    -0.19
 99  15.0283      0.00     0.08       0.00     0.06
100  15.0284      0.00     0.04       0.00     0.06
101  15.0368      0.00     0.04       0.00     0.05
102  15.0394      0.00     0.10       0.00     0.07
103  15.1156      0.00     0.12       0.00     0.08
104  15.1183      0.00     0.15       0.00     0.06
105  15.1788      0.00     0.08       0.00     0.09
106  15.2636      0.00     0.04       0.00     0.04
107  15.8529      0.00     0.02       0.00     0.01
108  17.7805      0.00    -0.06       0.00     0.07
109  17.8679      0.00     0.01       0.00     0.11
110  17.8814      0.00     0.05       0.00     0.13
111  17.8816      0.00    -0.04       0.00     0.08

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.

504847    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.405    46.405    46.405
ecceobj         0.154     0.154     0.154
incobj          6.735     6.735     6.735
qmin           38.222    38.234    38.262
qmax           54.242    54.160    54.241
amean          46.050    46.050    46.050
amin           45.666    45.657    45.660
amax           46.495    46.497    46.490
emean           0.153     0.153     0.153
emin            0.140     0.140     0.139
emax            0.168     0.166     0.167
imean           7.213     7.213     7.213
imin            6.642     6.642     6.642
imax            7.855     7.856     7.856
excite_mean     0.198     0.198     0.198
fracstop        1.000     1.000     1.000
cjmean          3.078     3.078     3.078

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       182.9     182.8     182.8
kozaiamp        180.0     180.0     179.9