Orbit Fit and Astrometric record for 90482

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.

# Object: 90482     
# Created Wed May 23 02:27:17 2007
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting  116 observations of  118
# Arc:  55.41y
# First observation: 1951/11/08
#  Last observation: 2007/04/06
# Chi-squared of fit:   420.09 DOF:  226 RMS:  0.34
# Min/Max residuals:    -1.66    1.30
# Exact a, adot, b, bdot, g, gdot:
  1.357033E-05  2.302253E-02 -6.408199E-06 -8.678037E-03  2.559467E-02  6.054429E-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
    0.266967   88.860166    0.675627    0.003337   -0.723369  2433958.892706
# Heliocentric elements and errors
Epoch:              2433960.5000  =  1951/11/10
Mean Anomaly:           79.56098 +/-     0.000
Argument of Peri:       73.83212 +/-     0.000
Long of Asc Node:      268.58631 +/-     0.000
Inclination:            20.55234 +/-     0.000
Eccentricity:         0.22551659 +/-    0.0000
Semi-Major Axis:     39.41857938 +/-    0.0000
Time of Perihelion: 2413982.7061 +/-       0.0
Perihelion:          30.52903563 +/-    0.0000
Aphelion:            48.30812314 +/-    0.0000
Period (y)              247.4911 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            1.46681831 +/-    0.0000
Ecliptic Y           39.77326859 +/-    0.0000
Ecliptic Z            0.18188634 +/-    0.0000
Ecliptic XDOT        -0.00245106 +/-    0.0000
Ecliptic YDOT         0.00070644 +/-    0.0000
Ecliptic ZDOT        -0.00092522 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.80058502 +/-    0.0000
Geocenter to KBO     39.07051858 +/-    0.0000
# Hcoef:  2.14

The following table shows the complete astrometric record for 90482. 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 (90482) followed by the observatory code and reference code for the source of the astrometry.

1951 11  08.39236  05 55 01.24   +23 42 04.8         90482     261   k0737      
1951 11  08.41736  05 55 01.13   +23 42 04.4   18.9R 90482     261   j8992      
1954 11  23.38473  06 10 51.37   +22 11 34.7         90482     261   k0737      
1954 11  23.40868  06 10 51.27   +22 11 34.8   18.9R 90482     261   j8992      
1991 02  07.30243  08 40 20.60   +03 06 46.5   18.1R 90482     261   j8992      
1992 01  13.62253  08 45 46.95   +02 29 57.6   18.0R 90482     260   j8992      
1992 11  28.51285  08 51 43.88   +02 01 16.5   17.9R 90482     261   j8992      
1993 03  23.18681  08 44 49.49   +02 20 30.0         90482     261   j8992      
1996 04  07.19375  08 54 50.20   +00 54 11.0         90482     261   j8992      
2000 12  01.53502  09 19 09.09   -02 01 42.9   18.2R 90482     608  Cj8992      
2000 12  01.54597  09 19 09.08   -02 01 43.4   18.5R 90482     608  Cj8992      
2000 12  01.55675  09 19 09.05   -02 01 43.8   18.7R 90482     608  Cj8992      
2001 01  19.45102  09 16 45.05   -02 05 18.9   18.6R 90482     608  Cj8992      
2001 01  19.46162  09 16 45.02   -02 05 18.7   18.3R 90482     608  Cj8992      
2001 01  28.50126  09 16 06.72   -02 03 37.1   18.3R 90482     608  Cj8992      
2001 01  28.52257  09 16 06.62   -02 03 36.6   18.3R 90482     608  Cj8992      
2001 12  24.54084  09 21 45.21   -02 36 04.5   18.7R 90482     608  Cj8992      
2001 12  24.55109  09 21 45.20   -02 36 04.4   18.6R 90482     608  Cj8992      
2001 12  24.55124  09 21 45.17   -02 36 04.8   18.5R 90482     608  Cj8992      
2001 12  24.56179  09 21 45.15   -02 36 04.8   18.7R 90482     608  Cj8992      
2002 01  10.42906  09 20 48.46   -02 36 23.9   18.7R 90482     644  Cj8992      
2002 01  10.44340  09 20 48.38   -02 36 23.4   18.8R 90482     644  Cj8992      
2002 01  10.45925  09 20 48.33   -02 36 23.2   18.5R 90482     644  Cj8992      
2002 02  03.55759  09 19 08.78   -02 32 21.6   18.7R 90482     608  Cj8992      
2002 02  03.56816  09 19 08.71   -02 32 21.3   18.8R 90482     608  Cj8992      
2002 02  03.57876  09 19 08.68   -02 32 21.1   19.0R 90482     608  Cj8992      
2002 02  08.29211  09 18 48.17   -02 31 01.3   18.6R 90482     644  Cj8992      
2002 02  08.31306  09 18 48.07   -02 31 00.8   18.7R 90482     644  Cj8992      
2002 02  08.33405  09 18 47.99   -02 31 00.5   18.7R 90482     644  Cj8992      
2002 02  19.44429  09 18 00.22   -02 27 17.5   18.8R 90482     644  Cj8992      
2002 02  20.27543  09 17 56.76   -02 26 58.6         90482     644  Cj8992      
2002 03  10.14123  09 16 46.63   -02 19 41.4   18.7R 90482     644  Cj8992      
2003 01  15.49255  09 23 56.25   -03 06 00.1         90482     644  Cl2198      
2003 01  25.42685  09 23 15.83   -03 04 34.6   18.5R 90482     644  Cm3425      
2003 01  25.44787  09 23 15.74   -03 04 34.2         90482     644  Cm3425      
2003 01  25.46887  09 23 15.65   -03 04 34.1         90482     644  Cm3425      
2003 12  03.50153  09 29 18.96   -03 30 59.4   19.0R 90482     675  Cj8992      
2004 02  17.23807  09 25 05.57   -03 28 26.2   18.8  90482     644  Ck8510      
2004 02  17.23807  09 25 05.57   -03 28 26.2   18.8  90482     675  Cj8992      
2004 02  17.30481  09 25 05.28   -03 28 24.7   18.6  90482     644  Ck8510      
2004 02  17.30481  09 25 05.28   -03 28 24.7   18.6  90482     675  Cj8992      
2004 02  17.36779  09 25 05.01   -03 28 23.4   18.8  90482     644  Ck8510      
2004 02  17.36779  09 25 05.01   -03 28 23.4   18.8  90482     675  Cj8992      
2004 02  18.16681  09 25 01.58   -03 28 06.6   18.7R 90482     493  Cj8992      
2004 02  18.16738  09 25 01.58   -03 28 06.4   18.7R 90482     493  Cj8992      
2004 02  18.16801  09 25 01.58   -03 28 06.1   18.6R 90482     493  Cj8992      
2004 02  18.28310  09 25 01.13   -03 28 04.2   19.5R 90482     673  Cj8992      
2004 02  18.28634  09 25 01.11   -03 28 04.1         90482     673  Cj8992      
2004 02  18.32315  09 25 00.94   -03 28 03.2         90482     673  Cj8992      
2004 02  18.32640  09 25 00.93   -03 28 03.0         90482     673  Cj8992      
2004 02  19.03321  09 24 57.90   -03 27 47.9   18.8R 90482     A21  Cj8992      
2004 02  19.90095  09 24 54.23   -03 27 29.0   18.5R 90482     620  Cj8992      
2004 02  19.91583  09 24 54.17   -03 27 28.7   18.7R 90482     620  Cj8992      
2004 02  20.90353  09 24 50.05   -03 27 07.0         90482     246  Cj8992      
2004 02  20.90426  09 24 50.02   -03 27 06.4         90482     246  Cj8992      
2004 02  20.90503  09 24 50.02   -03 27 06.3   18.1R 90482     246  Cj8992      
2004 02  20.90575  09 24 50.01   -03 27 06.6         90482     246  Cj8992      
2004 02  20.90655  09 24 50.00   -03 27 06.2         90482     246  Cj8992      
2004 02  22.26007  09 24 44.33   -03 26 36.0   19.0R 90482     850  Ck0232      
2004 02  22.31957  09 24 44.08   -03 26 34.9   19.2R 90482     333  Ck0232      
2004 02  22.33678  09 24 43.96   -03 26 34.6   18.1R 90482     850  Ck0232      
2004 02  22.35499  09 24 43.94   -03 26 34.0   20.0R 90482     333  Ck0232      
2004 02  22.36352  09 24 43.86   -03 26 34.0   18.7R 90482     850  Ck0232      
2004 02  22.37850  09 24 43.72   -03 26 33.3   20.9  90482     333  Ck0232      
2004 02  24.90764  09 24 33.31   -03 25 35.6   18.7R 90482     185  Ck0232      
2004 02  24.91403  09 24 33.34   -03 25 35.3   18.5R 90482     143  Ck0232      
2004 02  25.00683  09 24 32.89   -03 25 32.2   18.7R 90482     204  Ck0232      
2004 02  25.01870  09 24 32.82   -03 25 31.6   18.5R 90482     204  Ck0232      
2004 02  25.17022  09 24 32.25   -03 25 28.4   19.8R 90482     333  Ck0232      
2004 02  25.23429  09 24 31.98   -03 25 27.4   19.8R 90482     333  Ck0232      
2004 02  25.88399  09 24 29.27   -03 25 12.5   18.6R 90482     143  Ck0232      
2004 02  26.16131  09 24 28.18   -03 25 04.8   20.2R 90482     333  Ck0232      
2004 02  26.22774  09 24 27.91   -03 25 03.3   19.9R 90482     333  Ck0232      
2004 02  26.28999  09 24 27.66   -03 25 02.1   19.9R 90482     333  Ck0232      
2004 02  26.56409  09 24 26.53   -03 24 55.3   18.4R 90482     D35  Ck0737      
2004 02  26.62216  09 24 26.29   -03 24 53.9   18.3R 90482     D35  Ck0737      
2004 02  26.67488  09 24 26.07   -03 24 52.7   18.3R 90482     D35  Ck0737      
2004 02  26.71854  09 24 25.89   -03 24 51.6   18.4R 90482     D35  Ck0737      
2004 02  26.76513  09 24 25.70   -03 24 50.5   18.3R 90482     D35  Ck0737      
2004 02  27.99839  09 24 20.65   -03 24 21.1   19.2R 90482     213  Ck0737      
2004 02  28.62509  09 24 18.19   -03 24 05.3   18.4R 90482     D35  Ck0737      
2004 02  28.66995  09 24 18.00   -03 24 04.2   18.4R 90482     D35  Ck0737      
2004 02  28.71694  09 24 17.81   -03 24 03.0   18.4R 90482     D35  Ck0737      
2004 02  28.75896  09 24 17.64   -03 24 02.0   18.4R 90482     D35  Ck0737      
2004 03  02.005869 09 24 08.68   -03 23 06.0         90482     084  Ck4340      
2004 03  02.011208 09 24 08.66   -03 23 05.9         90482     084  Ck4340      
2004 03  03.86157  09 24 01.50   -03 22 19.0   18.1R 90482     620  Ck0737      
2004 03  15.81074  09 23 18.17   -03 17 00.7         90482     246  Ck1247      
2004 03  15.81155  09 23 18.16   -03 17 01.3         90482     246  Ck1247      
2004 03  15.81280  09 23 18.16   -03 17 01.0         90482     246  Ck1247      
2004 03  15.81400  09 23 18.15   -03 17 01.1         90482     246  Ck1247      
2004 03  15.89265  09 23 17.90   -03 16 59.3   18.9R 90482     143  Ck2250      
2004 03  16.87083  09 23 14.55   -03 16 30.9   17.9R 90482     J84  Ck1247      
2004 03  16.87200  09 23 14.81   -03 16 30.7   18.2R 90482     J84  Ck1247      
2004 03  16.87411  09 23 14.49   -03 16 31.6   18.1R 90482     J84  Ck1247      
2004 03  16.88625  09 23 14.62   -03 16 32.2   19.0R 90482     143  Ck2250      
2004 03  17.83376  09 23 11.51   -03 16 05.5   19.1R 90482     143  Ck2250      
2004 03  17.84969  09 23 11.46   -03 16 04.9   18.6R 90482     184  Ck1247      
2004 03  17.86028  09 23 11.39   -03 16 06.1   18.6R 90482     215  Ck1247      
2004 03  17.90291  09 23 11.30   -03 16 03.7   18.7R 90482     184  Ck1247      
2004 03  17.97070  09 23 11.07   -03 16 01.4   18.8R 90482     184  Ck1247      
2004 03  17.97708  09 23 11.13   -03 16 01.8         90482     A46  Ck1247      
2004 03  20.53013  09 23 02.96   -03 14 51.1   19.1V 90482     360  Ck2250      
2004 03  20.57297  09 23 02.84   -03 14 49.9         90482     360  Ck2250      
2004 03  20.57734  09 23 02.85   -03 14 49.8         90482     360  Ck2250      
2004 03  26.94745  09 22 44.41   -03 11 52.6   18.7R 90482     A32  Ck3171      
2004 03  30.89292  09 22 34.27   -03 10 02.7   18.0R 90482     A32  Ck3171      
2004 04  08.91736  09 22 14.96   -03 05 56.4   18.6R 90482     A46  Ck4340      
2004 04  09.87935  09 22 13.34   -03 05 32.0   18.3R 90482     A32  Ck4340      
2004 04  12.14900  09 22 09.57   -03 04 31.8   19.0  90482     704  Cl0322      
2004 04  13.15356  09 22 08.03   -03 04 05.7   19.7  90482     704  Cl0322      
2004 04  14.15003  09 22 06.54   -03 03 39.9   19.5  90482     704  Cl0322      
2004 04  15.15040  09 22 05.16   -03 03 13.3   20.0  90482     704  Cl0322      
2004 04  15.84808  09 22 04.24   -03 02 56.8   18.6R 90482     A32  Ck5111      
2004 12  11.01790  09 32 30.00   -04 02 49.9   19.3  90482     130  Cm3425      
2005 12  10.21670  09 35 54.97   -04 31 57.0   18.8  90482     147  Cp5713      
2007 04  06.93269  09 32 32.84   -04 36 13.5   19.1V 90482     213  Cu6636      
2007 04  06.93630  09 32 32.83   -04 36 13.7   18.8R 90482     213  Cu6636      

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     0.14       0.00     0.22
  2   0.0001      0.00     0.02       0.00    -0.06
  3   3.0417      0.00    -0.22       0.00    -0.24
  4   3.0418      0.00    -0.01       0.00    -0.03
  5  39.2496      0.00    -0.01       0.00    -0.12
  6  40.1813      0.00    -0.10       0.00     0.12
  7  41.0571      0.00     0.26       0.00     0.20
  8  41.3711      0.00     0.07       0.00    -0.19
  9  44.4129      0.00     0.14       0.00     0.00
 10  49.0654      0.00    -0.03       0.00     0.25
 11  49.0654      0.00     0.05       0.00    -0.06
 12  49.0655      0.00    -0.17       0.00    -0.27
 13  49.1993      0.00     0.29       0.00     0.20
 14  49.1994      0.00     0.50       0.00     0.30
 15  49.2241      0.00     0.22       0.00    -0.13
 16  49.2242      0.00     0.12       0.00     0.08
 17  50.1277      0.00    -0.18       0.00     0.09
 18  50.1277      0.00     0.12       0.00     0.26
 19  50.1277      0.00    -0.32       0.00    -0.14
 20  50.1278      0.00    -0.15       0.00    -0.08
 21  50.1740      0.00    -0.05       0.00    -0.35
 22  50.1740      0.00    -0.42       0.00     0.10
 23  50.1740      0.00    -0.26       0.00     0.24
 24  50.2400      0.00     0.44       0.00    -0.12
 25  50.2400      0.00     0.09       0.00     0.01
 26  50.2401      0.00     0.34       0.00     0.04
 27  50.2530      0.00    -0.15       0.00    -0.01
 28  50.2530      0.00    -0.26       0.00     0.12
 29  50.2531      0.00    -0.08       0.00     0.04
 30  50.2835      0.00    -0.33       0.00     0.01
 31  50.2858      0.00     0.05       0.00     0.51
 32  50.3347      0.00    -0.21       0.00    -0.02
 33  51.1871      0.00    -0.13       0.00    -0.13
 34  51.2143      0.00    -0.05       0.00    -0.16
 35  51.2144      0.00    -0.05       0.00     0.00
 36  51.2144      0.00    -0.06       0.00    -0.14
 37  52.0687      0.00     0.37       0.00     0.49
 38  52.2761      0.00     0.15       0.00    -0.06
 39  52.2761      0.00     0.15       0.00    -0.06
 40  52.2763      0.00     0.14       0.00     0.04
 41  52.2763      0.00     0.14       0.00     0.04
 42  52.2765      0.00     0.18       0.00     0.01
 43  52.2765      0.00     0.18       0.00     0.01
 44  52.2786      0.00    -0.09       0.00    -0.14
 45  52.2786      0.00    -0.05       0.00     0.05
 46  52.2786      0.00    -0.01       0.00     0.34
 47  52.2790      0.00     0.43       0.00    -0.23
 48  52.2790      0.00     0.34       0.00    -0.20
 49  52.2791      0.00     0.17       0.00    -0.08
 50  52.2791      0.00     0.23       0.00     0.05
 51  52.2810      0.00    -0.12       0.00    -0.05
 52  52.2834      0.00    -0.14       0.00    -0.10
 53  52.2834      0.00    -0.08       0.00    -0.13
 54  52.2861      0.00     0.66       0.00    -0.27
 55  52.2861      0.00     0.26       0.00     0.31
 56  52.2861      0.00     0.31       0.00     0.39
 57  52.2861      0.00     0.20       0.00     0.08
 58  52.2861      0.00     0.11       0.00     0.46
 59  52.2899      0.00     0.34       0.00     0.14
 60  52.2900      0.00     0.32       0.00    -0.13
 61  52.2901      0.00    -0.33       0.00    -0.21
 62  52.2901      0.00     0.47       0.00    -0.03
 63  52.2901      0.00    -0.14       0.00    -0.22
 64  52.2902      0.00    -1.33       0.00     0.13
 65  52.2971      0.00    -0.11       0.00    -0.74
 66  52.2971      0.00     0.74       0.00    -0.59
 67  52.2974      0.00    -0.20       0.00     0.32
 68  52.2974      0.00    -0.51       0.00     0.64
 69  52.2978      0.00     0.14       0.00     0.23
 70  52.2980      0.00     0.10       0.00    -0.29
 71  52.2998      0.00    -0.56       0.00    -0.78
 72  52.3005      0.00     0.05       0.00     0.27
 73  52.3007      0.00     0.13       0.00     0.18
 74  52.3009      0.00     0.26       0.00    -0.11
 75  52.3016      0.00     0.00       0.00     0.09
 76  52.3018      0.00     0.01       0.00     0.10
 77  52.3019      0.00    -0.01       0.00     0.03
 78  52.3021      0.00     0.00       0.00     0.08
 79  52.3022      0.00     0.03       0.00     0.05
 80  52.3056      0.00    -0.84       0.00    -0.39
 81  52.3073      0.00     0.06       0.00     0.01
 82  52.3074      0.00    -0.04       0.00     0.01
 83  52.3075      0.00    -0.01       0.00     0.05
 84  52.3076      0.00     0.00       0.00     0.02
 85  52.3138      0.00    -0.49       0.00     0.21
 86  52.3138      0.00    -0.47       0.00     0.17
 87  52.3189      0.00     0.37       0.00     0.12
 88  52.3516      0.00    -0.14       0.00     0.61
 89  52.3516      0.00    -0.24       0.00    -0.01
 90  52.3516      0.00    -0.18       0.00     0.25
 91  52.3516      0.00    -0.27       0.00     0.12
 92  52.3518      0.00    -0.03       0.00    -0.24
 93  52.3545      0.00    -1.66       0.00     1.30
 94  52.3545      0.00 (   2.29)      0.00 (   1.46)
 95  52.3545      0.00 (  -2.40)      0.00 (   0.51)
 96  52.3545      0.00     0.18       0.00    -0.44
 97  52.3571      0.00    -0.13       0.00     0.16
 98  52.3572      0.00    -0.10       0.00     0.31
 99  52.3572      0.00    -0.61       0.00    -1.17
100  52.3573      0.00     0.13       0.00     0.04
101  52.3575      0.00     0.02       0.00     0.47
102  52.3575      0.00     1.25       0.00    -0.10
103  52.3645      0.00    -0.37       0.00    -0.11
104  52.3646      0.00    -0.15       0.00    -0.10
105  52.3646      0.00     0.21       0.00    -0.12
106  52.3821      0.00     0.30       0.00    -0.14
107  52.3929      0.00     0.35       0.00     0.27
108  52.4176      0.00    -0.79       0.00     0.74
109  52.4202      0.00     0.51       0.00    -0.47
110  52.4264      0.00     0.39       0.00    -0.19
111  52.4292      0.00     0.45       0.00    -0.31
112  52.4319      0.00    -0.06       0.00    -0.34
113  52.4347      0.00     0.03       0.00     0.53
114  52.4366      0.00     0.06       0.00    -0.76
115  53.0914      0.00    -0.34       0.00    -0.41
116  54.0885      0.00     0.26       0.00    -0.09
117  55.4101      0.00    -0.08       0.00    -0.17
118  55.4101      0.00    -0.11       0.00    -0.47

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.

90482    quality flag:3

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

axisobj       39.258    39.259    39.258
ecceobj        0.226     0.226     0.226
incobj        20.539    20.539    20.539
qmin          27.835    27.835    27.835
qmax          51.651    51.649    51.653
amean         39.454    39.454    39.454
amin          39.019    39.017    39.026
amax          39.975    39.975    39.970
emean          0.254     0.254     0.254
emin           0.207     0.207     0.207
emax           0.293     0.293     0.293
imean         21.181    21.181    21.181
imin          19.788    19.788    19.788
imax          22.441    22.441    22.440
fracstop       1.000     1.000     1.000
cjmean         2.827     2.827     2.827

libcent 0      180.2     180.2     180.1
libamp  0       74.6      74.7      74.2
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       90.5      90.5      90.5
kozaiamp        26.3      26.3      26.3