Orbit Fit and Astrometric record for 15807

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: 15807     
# Created Mon Nov 24 02:36:55 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   44 observations of   47
# Arc:   7.93y
# First observation: 1994/04/15
#  Last observation: 2002/03/22
# Chi-squared of fit:   638.93 DOF:   82 RMS:  0.67
# Min/Max residuals:    -1.58    1.60
# Exact a, adot, b, bdot, g, gdot:
  1.163307E-05  2.402951E-02 -8.480985E-06  2.348954E-04  2.430282E-02  8.021933E-04
# 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
   -0.032830  172.731706   -0.531206   -0.000451   -0.847181  2449457.776797
# Heliocentric elements and errors
Epoch:              2449458.5000  =  1994/04/16
Mean Anomaly:           42.77860 +/-     0.000
Argument of Peri:      308.77325 +/-     0.000
Long of Asc Node:      176.81804 +/-     0.000
Inclination:             0.55827 +/-     0.000
Eccentricity:         0.06188647 +/-    0.0000
Semi-Major Axis:     43.90941815 +/-    0.0000
Time of Perihelion: 2436829.7890 +/-       0.0
Perihelion:          41.19201935 +/-    0.0000
Aphelion:            46.62681696 +/-    0.0000
Period (y)              290.9677 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.72510485 +/-    0.0000
Ecliptic Y            4.77890901 +/-    0.0000
Ecliptic Z           -0.02392646 +/-    0.0000
Ecliptic XDOT        -0.00042686 +/-    0.0000
Ecliptic YDOT        -0.00267763 +/-    0.0000
Ecliptic ZDOT         0.00002628 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.99786355 +/-    0.0000
Geocenter to KBO     41.14751118 +/-    0.0000
# Hcoef:  7.33

The following table shows the complete astrometric record for 15807. 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 (15807) followed by the observatory code and reference code for the source of the astrometry.

1994 04  15.2761   11 33 15.08   +02 51 16.1   23.1R 15807     568  A23582      
1994 04  15.3019   11 33 14.99   +02 51 16.6         15807     568  A23582      
1994 04  15.3139   11 33 14.93   +02 51 17.0         15807     568  A23582      
1994 04  15.4596   11 33 14.39   +02 51 20.2         15807     568  A23582      
1994 05  05.37220  11 32 13.12   +02 57 55.9   23.6V 15807     568  C23582      
1994 05  06.43593  11 32 10.57   +02 58 12.2   23.8V 15807     568  C23582      
1994 05  07.33301  11 32 08.54   +02 58 25.4   23.4V 15807     568  C23582      
1994 05  08.31953  11 32 06.31   +02 58 40.3   23.6V 15807     568  C23582      
1995 02  01.07240  11 43 20.03   +01 46 46.6         15807     950  C24881      
1995 02  01.24221  11 43 19.51   +01 46 49.8         15807     950  C24881      
1995 02  02.12644  11 43 16.80   +01 47 07.3         15807     950  C24881      
1995 02  02.18328  11 43 16.64   +01 47 08.3         15807     950  C24881      
1995 02  26.29965  11 41 46.87   +01 56 53.8         15807     675  C25125      
1995 02  26.46076  11 41 46.19   +01 56 57.8         15807     675  C25125      
1995 03  31.9106   11 39 18.67   +02 12 57.2         15807     950  C25182      
1995 04  01.0072   11 39 18.29   +02 13 00.1         15807     950  C25182      
1995 04  01.9135   11 39 14.46   +02 13 24.2         15807     950  C25182      
1995 04  02.0174   11 39 13.96   +02 13 27.1   23.1R 15807     950  C25029      
1996 01  23.49346  11 48 45.11   +01 12 27.4         15807     675  C26659      
1996 04  09.21007  11 43 45.52   +01 45 03.5         15807     675  C27019      
1996 04  09.27749  11 43 45.25   +01 45 05.9         15807     675  C27019      
1997 04  03.28080  11 49 14.18   +01 10 22.4         15807     568  Ca0650      
1997 04  03.43969  11 49 13.48   +01 10 27.0         15807     568  Ca0650      
1997 04  07.94042  11 48 54.73   +01 12 30.1         15807     950  C30062      
1997 04  08.00322  11 48 54.33   +01 12 31.7         15807     950  C30062      
1997 04  08.04792  11 48 54.09   +01 12 32.7         15807     950  C30062      
1998 05  24.91117  11 51 39.48   +00 55 36.0         15807     950  Ca1682      
1998 05  25.01085  11 51 39.39   +00 55 37.5         15807     950  Ca1682      
1999 01  23.43244  12 03 41.62   -00 22 03.2         15807     705  Ca3578      
1999 01  23.46825  12 03 41.52   -00 22 03.0         15807     705  Ca3579      
1999 01  23.50262  12 03 41.47   -00 22 02.4         15807     705  Ca3579      
1999 03  10.25657  12 01 05.82   -00 05 02.1         15807     829  Cc0554      
1999 03  10.29936  12 01 05.66   -00 05 01.1         15807     829  Cc0554      
2000 04  02.38513  12 04 21.04   -00 25 15.9   23.6R 15807     568  Cb1776      
2000 04  02.38898  12 04 21.04   -00 25 15.6   22.6R 15807     568  Cb1776      
2000 04  02.42179  12 04 20.87   -00 25 14.7   23.5R 15807     568  Cb1776      
2000 04  02.43061  12 04 20.86   -00 25 14.4   23.6R 15807     568  Cb1776      
2000 04  02.46661  12 04 20.70   -00 25 13.5   23.5R 15807     568  Cb1776      
2000 04  02.47005  12 04 20.70   -00 25 13.6   23.6R 15807     568  Cb1776      
2000 04  05.44234  12 04 07.87   -00 23 49.4   23.5R 15807     568  Cb1776      
2000 04  05.49006  12 04 07.67   -00 23 48.1   23.6R 15807     568  Cb1776      
2002 03  22.44767  12 15 12.21   -01 34 00.6   23.0R 15807     568  Cf6293      
2002 03  22.49733  12 15 11.99   -01 33 59.0   22.7R 15807     568  Cf6294      
2002 03  22.53068  12 15 11.84   -01 33 58.1   22.6R 15807     568  Cf6294      
2002 04  14.00538  12 13 34.16   -01 23 25.6         15807     304  Cf6294      
2002 04  14.05378  12 13 33.95   -01 23 24.6         15807     304  Cf6294      
2002 04  14.15390  12 13 33.54   -01 23 21.5         15807     304  Cf6294      

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    -0.17       0.00     1.12
  2   0.0001      0.00     1.60       0.00     1.18
  3   0.0001      0.00     1.37       0.00     1.30
  4   0.0005      0.00     1.43       0.00     1.04
  5   0.0550      0.00    -1.37       0.00    -0.27
  6   0.0579      0.00    -1.58       0.00    -0.46
  7   0.0604      0.00    -1.06       0.00    -0.76
  8   0.0631      0.00    -1.38       0.00    -0.27
  9   0.7989      0.00     0.31       0.00    -0.21
 10   0.7994      0.00     0.36       0.00    -0.35
 11   0.8018      0.00    -0.05       0.00    -0.39
 12   0.8019      0.00     0.24       0.00    -0.52
 13   0.8680      0.00     0.23       0.00     0.44
 14   0.8684      0.00     0.44       0.00     0.00
 15   0.9600      0.00    -0.45       0.00     0.25
 16   0.9602      0.00     0.15       0.00     0.47
 17   0.9627      0.00     0.45       0.00    -0.51
 18   0.9630      0.00    -0.32       0.00    -0.48
 19   1.7747      0.00    -1.16       0.00    -1.11
 20   1.9848      0.00     0.58       0.00    -0.03
 21   1.9849      0.00     0.66       0.00     0.61
 22   2.9678      0.00     0.48       0.00    -0.43
 23   2.9683      0.00     0.31       0.00    -0.24
 24   2.9806      0.00     1.39       0.00     0.00
 25   2.9808      0.00    -0.67       0.00    -0.08
 26   2.9809      0.00    -1.46       0.00    -0.28
 27   4.1085      0.00    -0.30       0.00    -1.25
 28   4.1088      0.00     0.45       0.00    -0.63
 29   4.7752      0.00    -0.19       0.00    -0.07
 30   4.7753      0.00    -0.60       0.00    -0.33
 31   4.7754      0.00    -0.29       0.00    -0.18
 32   4.9007      0.00    -1.07       0.00     0.19
 33   4.9008      0.00    -0.63       0.00    -0.03
 34   5.9661      0.00    -0.14       0.00    -0.28
 35   5.9661      0.00     0.11       0.00    -0.09
 36   5.9662      0.00    -0.26       0.00    -0.12
 37   5.9662      0.00     0.18       0.00    -0.07
 38   5.9663      0.00     0.17       0.00    -0.19
 39   5.9663      0.00     0.39       0.00    -0.39
 40   5.9744      0.00     0.12       0.00     0.13
 41   5.9746      0.00     0.23       0.00     0.10
 42   7.9348      0.00     0.51       0.00     0.64
 43   7.9349      0.00     0.58       0.00     0.81
 44   7.9350      0.00     0.58       0.00     0.74
 45   7.9965      0.00 (  -1.09)      0.00 (  -2.67)
 46   7.9967      0.00 (  -1.21)      0.00 (  -2.97)
 47   7.9969      0.00 (  -1.07)      0.00 (  -2.55)

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.

15807    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.541    43.541    43.541
ecceobj         0.060     0.060     0.060
incobj          0.565     0.565     0.565
qmin           39.791    39.793    39.834
qmax           48.080    48.068    48.056
amean          43.810    43.810    43.809
amin           43.458    43.467    43.451
amax           44.182    44.182    44.182
emean           0.069     0.069     0.069
emin            0.050     0.050     0.050
emax            0.088     0.088     0.088
imean           1.846     1.846     1.846
imin            1.018     1.018     1.018
imax            2.593     2.594     2.593
excite_mean     0.077     0.077     0.077
fracstop        1.000     1.000     1.000
cjmean          3.092     3.092     3.092

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       170.8     170.8     170.7
kozaiamp        180.0     180.0     180.0