Orbit Fit and Astrometric record for 04FU148

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: 04FU148   
# Created Fri Nov 16 02:08:22 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   95 observations of   95
# Arc:  14.08y
# First observation: 2004/03/16
#  Last observation: 2018/04/16
# Chi-squared of fit:   104.39 DOF:  184 RMS:  0.19
# Min/Max residuals:    -0.69    0.51
# Exact a, adot, b, bdot, g, gdot:
  1.726977E-05  3.133183E-02  4.938073E-06  9.131005E-03  2.942782E-02 -6.021076E-03
# Covariance matrix:
  1.1900E-13 -1.7912E-14  7.9022E-15 -3.5628E-15  2.5482E-14 -2.4262E-14
 -1.7912E-14  7.7400E-15 -4.6719E-15  2.1549E-15  5.6590E-15  1.4506E-14
  7.9022E-15 -4.6719E-15  7.4642E-14 -8.0321E-15 -3.3700E-15 -9.6947E-15
 -3.5628E-15  2.1549E-15 -8.0321E-15  1.4068E-15  1.6519E-15  4.4694E-15
  2.5482E-14  5.6590E-15 -3.3700E-15  1.6519E-15  4.5712E-14  1.0788E-14
 -2.4262E-14  1.4506E-14 -9.6947E-15  4.4694E-15  1.0788E-14  3.0093E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.358054 -150.161699    0.549229    0.048367   -0.823549  2453080.878083
# Heliocentric elements and errors
Epoch:              2453080.5000  =  2004/03/16
Mean Anomaly:          313.64505 +/-     0.004
Argument of Peri:       80.86088 +/-     0.005
Long of Asc Node:      197.86817 +/-     0.000
Inclination:            16.62557 +/-     0.000
Eccentricity:         0.22913931 +/-    0.0000
Semi-Major Axis:     39.71195394 +/-    0.0013
Time of Perihelion: 2464850.4324 +/-       4.1
Perihelion:          30.61238435 +/-    0.0012
Aphelion:            48.81152353 +/-    0.0017
Period (y)              250.2592 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -30.41831173 +/-    0.0002
Ecliptic Y          -16.81078076 +/-    0.0001
Ecliptic Z            1.99067730 +/-    0.0000
Ecliptic XDOT         0.00197514 +/-    0.0000
Ecliptic YDOT        -0.00223234 +/-    0.0000
Ecliptic ZDOT         0.00081538 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.81159316 +/-    0.0002
Geocenter to KBO     33.98158489 +/-    0.0002
# Hcoef:  7.40

The following table shows the complete astrometric record for 04FU148. 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 (04FU148) followed by the observatory code and reference code for the source of the astrometry.

2004 03  16.37734  13 55 48.00   -08 16 11.1   22.2R 04FU148   695  Ck9978      
2004 03  16.46878  13 55 47.62   -08 16 08.3         04FU148   695  Ck9978      
2004 04  22.47003  13 52 43.95   -07 54 38.3   21.8R 04FU148   568  Ck9978      
2004 04  22.53061  13 52 43.63   -07 54 36.0         04FU148   568  Ck9978      
2004 07  15.07497  13 48 22.52   -07 28 21.4   21.4R 04FU148   807  Cl0713      
2004 07  16.07452  13 48 23.10   -07 28 25.5         04FU148   807  Cl0713      
2004 07  16.99466  13 48 23.74   -07 28 30.3         04FU148   807  Cl0713      
2005 04  12.35153  14 01 16.71   -08 08 52.8   21.7R 04FU148   695  Cn5357      
2005 04  12.44812  14 01 16.18   -08 08 49.6         04FU148   695  Cn5357      
2005 05  09.18450  13 58 54.15   -07 53 38.3   21.2R 04FU148   807  Cn5357      
2005 05  10.17891  13 58 49.11   -07 53 07.4         04FU148   807  Cn5357      
2005 05  10.26375  13 58 48.64   -07 53 04.7         04FU148   807  Cn5357      
2005 05  10.32121  13 58 48.38   -07 53 03.0         04FU148   807  Cn5357      
2005 08  08.00202  13 56 23.89   -07 40 38.0   21.3R 04FU148   807  Co3966      
2005 08  09.00986  13 56 26.79   -07 40 55.7         04FU148   807  Co3967      
2005 08  10.00274  13 56 29.74   -07 41 13.8         04FU148   807  Co3967      
2007 04  21.12000  14 16 06.26   -08 18 54.9   21.2R 04FU148   807  Cv1534      
2007 04  22.24410  14 16 00.13   -08 18 15.9         04FU148   807  Cv1534      
2007 04  22.30741  14 15 59.81   -08 18 13.6         04FU148   807  Cv1534      
2007 05  12.30042  14 14 11.72   -08 07 18.7   22.2R 04FU148   688  Cv0131      
2007 05  12.34660  14 14 11.47   -08 07 17.0         04FU148   688  Cv0131      
2009 03  24.43529  14 34 17.95   -08 47 12.8   22.4R 04FU148   688  C~05Wt      
2009 03  24.47997  14 34 17.79   -08 47 11.2         04FU148   688  C~05Wt      
2010 05  11.36125  14 38 18.135  -08 26 10.21  22.0G 04FU148   F51  C~2kI1      
2010 08  06.31123  14 34 29.330  -08 13 07.13  22.8G 04FU148   F51  C~2kI1      
2011 04  27.46661  14 47 50.685  -08 38 34.51  22.8G 04FU148   F51  C~2kI1      
2011 06  02.32748  14 44 36.004  -08 21 47.53  22.4G 04FU148   F51  C~2kI1      
2011 06  02.34077  14 44 35.935  -08 21 47.38  21.8G 04FU148   F51  C~2kI1      
2011 06  02.35403  14 44 35.866  -08 21 46.95  22.8G 04FU148   F51  C~2kI1      
2011 06  02.36729  14 44 35.804  -08 21 46.58  22.6G 04FU148   F51  C~2kI1      
2012 04  27.41065  14 56 06.306  -08 42 28.78  22.5G 04FU148   F51  C~2kI1      
2012 04  27.42197  14 56 06.236  -08 42 28.42  22.5G 04FU148   F51  C~2kI1      
2012 04  27.43629  14 56 06.157  -08 42 27.97  22.1G 04FU148   F51  C~2kI1      
2012 04  27.45125  14 56 06.072  -08 42 27.63  22.1G 04FU148   F51  C~2kI1      
2012 04  27.46624  14 56 05.988  -08 42 27.09  22.9G 04FU148   F51  C~2kI1      
2012 04  27.48128  14 56 05.904  -08 42 26.55  22.3G 04FU148   F51  C~2kI1      
2012 04  28.40893  14 56 00.693  -08 41 56.41  23.0G 04FU148   F51  C~2kI1      
2012 05  21.35920  14 53 51.316  -08 30 37.79  22.7G 04FU148   F51  C~2kI1      
2012 05  21.37371  14 53 51.226  -08 30 37.16  22.4G 04FU148   F51  C~2kI1      
2012 05  21.38824  14 53 51.149  -08 30 36.87  21.1G 04FU148   F51  C~2kI1      
2012 05  21.38893  14 53 51.133  -08 30 36.87  22.5G 04FU148   F51  C~2kI1      
2012 05  21.40345  14 53 51.062  -08 30 36.46  22.3G 04FU148   F51  C~2kI1      
2013 04  13.47422  15 05 48.011  -08 53 58.46  23.0G 04FU148   F51  C~2kI1      
2013 04  13.48809  15 05 47.930  -08 53 57.84  23.1G 04FU148   F51  C~2kI1      
2013 04  13.50199  15 05 47.859  -08 53 57.66  22.8G 04FU148   F51  C~2kI1      
2013 04  13.51586  15 05 47.776  -08 53 57.23  22.3G 04FU148   F51  C~2kI1      
2014 02  28.57377  15 16 35.255  -09 19 14.40  23.6G 04FU148   F51  C~2kI1      
2014 03  29.59585  15 15 26.263  -09 05 14.84  23.2G 04FU148   F51  C~2kI1      
2014 05  04.46034  15 12 26.825  -08 45 43.99  22.6G 04FU148   F51  C~2kI1      
2014 05  04.47228  15 12 26.787  -08 45 43.83  22.2G 04FU148   F51  C~2kI1      
2014 05  04.48421  15 12 26.690  -08 45 43.18  22.1G 04FU148   F51  C~2kI1      
2014 06  29.35616  15 07 44.866  -08 27 01.28  22.8G 04FU148   F51  C~2kI1      
2014 06  29.36922  15 07 44.820  -08 27 01.10  22.8G 04FU148   F51  C~2kI1      
2014 06  29.38230  15 07 44.783  -08 27 01.00  22.5G 04FU148   F51  C~2kI1      
2014 06  29.39540  15 07 44.732  -08 27 00.93  22.7G 04FU148   F51  C~2kI1      
2014 07  27.29616  15 06 50.849  -08 27 46.64  22.8G 04FU148   F51  C~2kI1      
2015 04  25.51006  15 21 56.875  -08 52 54.88  22.5G 04FU148   F51  C~2kI1      
2015 04  25.52221  15 21 56.824  -08 52 54.61  21.9G 04FU148   F51  C~2kI1      
2015 04  25.53422  15 21 56.744  -08 52 54.31  22.1G 04FU148   F51  C~2kI1      
2015 04  25.54629  15 21 56.681  -08 52 53.95  22.6G 04FU148   F51  C~2kI1      
2015 06  16.40345  15 17 10.581  -08 31 48.99  22.9G 04FU148   F51  C~2kI1      
2015 06  17.37843  15 17 06.119  -08 31 36.04  22.6G 04FU148   F51  C~2kI1      
2016 03  04.61290  15 33 36.987  -09 20 55.74  22.5G 04FU148   F51  C~2kI1      
2016 04  16.56481  15 31 23.882  -08 58 56.37  22.6G 04FU148   F51  C~2kI1      
2016 05  04.43609  15 29 47.227  -08 49 33.64  22.0G 04FU148   F51  C~2kI1      
2016 05  04.44868  15 29 47.152  -08 49 33.14  22.3G 04FU148   F51  C~2kI1      
2016 06  08.20842  15 26 28.752  -08 35 34.95  21.8R 04FU148   G37  C~2bkb      
2016 06  08.23298  15 26 28.622  -08 35 34.37        04FU148   G37  C~2bkb      
2016 06  08.27342  15 26 28.384  -08 35 33.68        04FU148   G37  C~2bkb      
2016 06  28.35417  15 24 56.374  -08 31 41.12  23.3G 04FU148   F51  C~2kI1      
2016 06  28.36553  15 24 56.326  -08 31 40.93  22.5G 04FU148   F51  C~2kI1      
2016 06  28.38837  15 24 56.231  -08 31 40.78  22.6G 04FU148   F51  C~2kI1      
2016 07  06.31075  15 24 28.773  -08 31 09.53  23.6G 04FU148   F51  C~2kI1      
2016 07  06.32269  15 24 28.720  -08 31 09.44  22.4G 04FU148   F51  C~2kI1      
2016 07  06.33462  15 24 28.676  -08 31 09.02  22.5G 04FU148   F51  C~2kI1      
2016 07  08.30876  15 24 22.759  -08 31 06.95  22.6G 04FU148   F51  C~2kI1      
2016 07  08.31983  15 24 22.727  -08 31 07.20  23.0G 04FU148   F51  C~2kI1      
2016 07  08.33093  15 24 22.705  -08 31 07.18  22.9G 04FU148   F51  C~2kI1      
2016 07  08.34224  15 24 22.651  -08 31 06.80  22.5G 04FU148   F51  C~2kI1      
2016 07  18.28108  15 23 58.968  -08 31 28.80  22.5G 04FU148   F51  C~2kI1      
2017 03  23.59310  15 41 47.388  -09 12 42.38  22.1G 04FU148   F51  C~2kI1      
2017 03  23.60583  15 41 47.293  -09 12 41.81  22.1G 04FU148   F51  C~2kI1      
2017 03  23.61858  15 41 47.284  -09 12 41.62  22.2G 04FU148   F51  C~2kI1      
2017 03  23.63136  15 41 47.256  -09 12 41.12  22.4G 04FU148   F51  C~2kI1      
2017 04  01.55997  15 41 18.785  -09 08 00.52  21.9G 04FU148   F51  C~2kI1      
2017 04  01.57236  15 41 18.751  -09 08 00.11  22.1G 04FU148   F51  C~2kI1      
2017 04  01.58478  15 41 18.754  -09 07 59.43  22.0G 04FU148   F51  C~2kI1      
2017 04  27.51909  15 39 18.152  -08 54 06.61  22.3G 04FU148   F51  C~2kI1      
2017 05  17.35780  15 37 23.943  -08 44 36.89  22.0G 04FU148   F51  C~2kI1      
2017 05  17.37073  15 37 23.842  -08 44 36.52  22.0G 04FU148   F51  C~2kI1      
2017 05  17.38370  15 37 23.765  -08 44 36.25  22.6G 04FU148   F51  C~2kI1      
2017 05  17.39668  15 37 23.678  -08 44 36.15  22.2G 04FU148   F51  C~2kI1      
2018 04  16.52451  15 49 11.362  -09 00 05.54  22.5G 04FU148   F51  C~2kI1      
2018 04  16.53699  15 49 11.347  -09 00 05.30  22.6G 04FU148   F51  C~2kI1      
2018 04  16.54947  15 49 11.263  -09 00 04.70  22.3G 04FU148   F51  C~2kI1      

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    -0.09       0.00     0.03
  2   0.0003      0.00     0.00       0.00    -0.11
  3   0.1016      0.00    -0.30       0.00     0.21
  4   0.1017      0.00    -0.17       0.00     0.39
  5   0.3305      0.00     0.14       0.00     0.15
  6   0.3332      0.00     0.10       0.00     0.37
  7   0.3357      0.00     0.14       0.00     0.08
  8   1.0732      0.00     0.39       0.00     0.05
  9   1.0734      0.00     0.23       0.00    -0.20
 10   1.1466      0.00    -0.11       0.00    -0.07
 11   1.1494      0.00     0.08       0.00    -0.08
 12   1.1496      0.00    -0.43       0.00    -0.01
 13   1.1497      0.00     0.08       0.00    -0.10
 14   1.3953      0.00     0.08       0.00    -0.05
 15   1.3980      0.00     0.01       0.00     0.01
 16   1.4008      0.00    -0.19       0.00    -0.08
 17   3.0958      0.00     0.02       0.00    -0.33
 18   3.0989      0.00     0.05       0.00    -0.33
 19   3.0991      0.00     0.51       0.00    -0.22
 20   3.1538      0.00    -0.25       0.00    -0.16
 21   3.1539      0.00    -0.32       0.00     0.14
 22   5.0214      0.00    -0.42       0.00    -0.04
 23   5.0215      0.00     0.01       0.00     0.10
 24   6.1519      0.00     0.24       0.00    -0.22
 25   6.3900      0.00     0.13       0.00     0.23
 26   7.1132      0.00     0.25       0.00    -0.22
 27   7.2114      0.00     0.02       0.00     0.01
 28   7.2114      0.00    -0.03       0.00    -0.12
 29   7.2114      0.00    -0.09       0.00     0.03
 30   7.2115      0.00    -0.04       0.00     0.12
 31   8.1151      0.00     0.01       0.00     0.06
 32   8.1151      0.00    -0.07       0.00     0.05
 33   8.1152      0.00    -0.02       0.00     0.04
 34   8.1152      0.00    -0.01       0.00    -0.11
 35   8.1152      0.00     0.01       0.00    -0.06
 36   8.1153      0.00     0.04       0.00    -0.01
 37   8.1178      0.00    -0.05       0.00    -0.04
 38   8.1806      0.00     0.12       0.00    -0.18
 39   8.1807      0.00    -0.01       0.00     0.07
 40   8.1807      0.00     0.05       0.00    -0.01
 41   8.1807      0.00    -0.14       0.00    -0.03
 42   8.1808      0.00     0.01       0.00     0.00
 43   9.0762      0.00     0.25       0.00     0.15
 44   9.0763      0.00     0.11       0.00     0.30
 45   9.0763      0.00     0.12       0.00     0.02
 46   9.0764      0.00    -0.06       0.00    -0.02
 47   9.9554      0.00    -0.25       0.00     0.05
 48  10.0348      0.00     0.07       0.00    -0.06
 49  10.1330      0.00    -0.23       0.00     0.10
 50  10.1330      0.00     0.25       0.00    -0.11
 51  10.1331      0.00    -0.16       0.00     0.18
 52  10.2860      0.00    -0.06       0.00    -0.14
 53  10.2861      0.00    -0.07       0.00    -0.04
 54  10.2861      0.00     0.05       0.00    -0.02
 55  10.2862      0.00    -0.04       0.00    -0.04
 56  10.3625      0.00     0.14       0.00     0.20
 57  11.1078      0.00    -0.18       0.00     0.15
 58  11.1079      0.00     0.07       0.00     0.02
 59  11.1079      0.00    -0.13       0.00    -0.06
 60  11.1079      0.00    -0.06       0.00    -0.09
 61  11.2499      0.00    -0.05       0.00    -0.15
 62  11.2526      0.00     0.01       0.00     0.06
 63  11.9678      0.00     0.07       0.00     0.12
 64  12.0854      0.00    -0.14       0.00     0.07
 65  12.1343      0.00     0.04       0.00    -0.04
 66  12.1344      0.00     0.02       0.00     0.09
 67  12.2295      0.00     0.04       0.00     0.08
 68  12.2296      0.00     0.06       0.00     0.25
 69  12.2297      0.00    -0.28       0.00     0.26
 70  12.2847      0.00     0.14       0.00    -0.07
 71  12.2847      0.00     0.09       0.00     0.05
 72  12.2848      0.00     0.01       0.00     0.06
 73  12.3065      0.00     0.26       0.00    -0.06
 74  12.3065      0.00     0.04       0.00     0.00
 75  12.3065      0.00    -0.05       0.00     0.40
 76  12.3119      0.00    -0.07       0.00     0.17
 77  12.3120      0.00    -0.05       0.00    -0.08
 78  12.3120      0.00     0.12       0.00    -0.07
 79  12.3120      0.00    -0.18       0.00     0.30
 80  12.3392      0.00     0.05       0.00     0.03
 81  13.0191      0.00     0.51       0.00     0.09
 82  13.0191      0.00    -0.37       0.00     0.26
 83  13.0191      0.00     0.03       0.00     0.06
 84  13.0192      0.00     0.15       0.00     0.16
 85  13.0436      0.00    -0.51       0.00    -0.69
 86  13.0437      0.00    -0.32       0.00    -0.68
 87  13.0437      0.00     0.42       0.00    -0.40
 88  13.1147      0.00    -0.07       0.00     0.05
 89  13.1690      0.00     0.27       0.00     0.07
 90  13.1690      0.00    -0.08       0.00     0.11
 91  13.1691      0.00    -0.06       0.00     0.05
 92  13.1691      0.00    -0.19       0.00    -0.19
 93  14.0839      0.00    -0.30       0.00    -0.02
 94  14.0839      0.00     0.38       0.00    -0.18
 95  14.0840      0.00     0.02       0.00     0.02

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.

04FU148    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.318    39.318    39.318
ecceobj         0.227     0.227     0.227
incobj         16.701    16.701    16.701
qmin           28.329    28.368    28.329
qmax           51.087    51.167    51.159
amean          39.455    39.455    39.455
amin           38.983    38.990    38.993
amax           39.994    40.016    40.007
emean           0.246     0.246     0.246
emin            0.207     0.206     0.207
emax            0.280     0.280     0.279
imean          15.989    15.987    15.991
imin           14.723    14.717    14.727
imax           17.237    17.233    17.236
excite_mean     0.370     0.370     0.370
fracstop        1.000     1.000     1.000
cjmean          2.896     2.896     2.896

libcent 0       180.3     180.2     179.9
libamp  0        90.7      90.7      91.0
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        86.8      86.8      86.8
kozaiamp         31.4      31.5      31.4