Orbit Fit and Astrometric record for 07JH43

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: 07JH43    
# Created Sat Oct 25 01:37:42 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   45 observations of   45
# Arc:  28.19y
# First observation: 1984/03/07
#  Last observation: 2012/05/16
# Chi-squared of fit:   164.27 DOF:   84 RMS:  0.34
# Min/Max residuals:    -1.50    1.18
# Exact a, adot, b, bdot, g, gdot:
  1.619111E-05  2.412912E-02 -1.831304E-06 -5.896240E-03  2.534012E-02  8.320293E-04
# Covariance matrix:
  1.1254E-12 -8.8842E-14 -1.5657E-13  1.6987E-14 -2.4816E-14 -6.0400E-14
 -8.8842E-14  8.7506E-15  1.7796E-14 -1.9319E-15  8.1838E-15  6.8728E-15
 -1.5657E-13  1.7796E-14  5.3968E-13 -2.4779E-14  1.5534E-14  1.5566E-14
  1.6987E-14 -1.9319E-15 -2.4779E-14  1.3448E-15 -1.6994E-15 -1.6895E-15
 -2.4816E-14  8.1838E-15  1.5534E-14 -1.6994E-15  7.5944E-14  6.0942E-15
 -6.0400E-14  6.8728E-15  1.5566E-14 -1.6895E-15  6.0942E-15  6.0099E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   12.461965 -155.858994    0.598813    0.170914   -0.772550  2445767.230047
# Heliocentric elements and errors
Epoch:              2445766.5000  =  1984/03/07
Mean Anomaly:          132.38953 +/-     9.713
Argument of Peri:        2.73588 +/-     0.000
Long of Asc Node:       64.70158 +/-     0.000
Inclination:            18.11969 +/-     0.000
Eccentricity:         0.02412785 +/-    0.0002
Semi-Major Axis:     39.59001230 +/-    0.0021
Time of Perihelion: 2412306.3395 +/-    2454.9
Perihelion:          38.63479058 +/-    0.0088
Aphelion:            40.54523401 +/-    0.0088
Period (y)              249.1074 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.13244811 +/-    0.0010
Ecliptic Y          -15.54647520 +/-    0.0004
Ecliptic Z            8.51572776 +/-    0.0003
Ecliptic XDOT         0.00086911 +/-    0.0000
Ecliptic YDOT        -0.00247222 +/-    0.0000
Ecliptic ZDOT        -0.00060283 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.24628498 +/-    0.0010
Geocenter to KBO     39.46312441 +/-    0.0012
# Hcoef:  4.64

The following table shows the complete astrometric record for 07JH43. 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 (07JH43) followed by the observatory code and reference code for the source of the astrometry.

1984 03  07.72942  13 47 38.21   +02 14 33.9         07JH43    260   ~08Uf      
1994 03  09.73961  14 34 00.47   -05 50 44.8   20.0R 07JH43    260   y3582      
1996 04  18.65115  14 40 46.56   -07 11 55.5   19.6R 07JH43    260   y3582      
2002 05  19.34334  15 06 50.26   -11 46 00.8   19.9R 07JH43    644  Cy3582      
2002 05  19.36659  15 06 50.17   -11 46 00.1   20.1R 07JH43    644  Cy3582      
2002 05  19.36694  15 06 50.17   -11 46 00.2   20.5R 07JH43    644  Cy3582      
2002 05  19.39692  15 06 50.04   -11 46 00.4   20.5R 07JH43    644  Cy3582      
2002 06  03.26597  15 05 39.02   -11 42 45.1         07JH43    644  Cy3582      
2002 06  11.26189  15 05 04.18   -11 41 26.8         07JH43    644  Cy3582      
2003 05  05.95560  15 12 49.13   -12 35 55.3         07JH43    246  C~05Fw      
2003 05  05.96324  15 12 49.08   -12 35 54.5         07JH43    246  C~05Fw      
2007 05  10.36483  15 32 09.40   -15 36 11.6   20.1R 07JH43    675  C60235      
2007 05  10.40777  15 32 09.16   -15 36 10.4   20.2R 07JH43    675  C60235      
2007 05  11.24267  15 32 04.93   -15 35 59.2   20.4R 07JH43    675  C60235      
2007 05  11.37045  15 32 04.23   -15 35 57.0   20.4R 07JH43    675  C60235      
2007 06  16.33474  15 29 07.97   -15 28 43.3         07JH43    675  Cv1556      
2007 06  17.19911  15 29 04.26   -15 28 36.9         07JH43    675  Cv1556      
2007 06  17.25872  15 29 04.01   -15 28 35.0         07JH43    675  Cv1556      
2007 06  17.31228  15 29 03.78   -15 28 34.7         07JH43    675  Cv1556      
2007 06  18.19232  15 29 00.06   -15 28 27.3         07JH43    675  Cv1556      
2007 07  14.21197  15 27 32.85   -15 26 37.7         07JH43    675  Cv4525      
2007 07  16.17485  15 27 28.37   -15 26 38.5         07JH43    675  Cv4525      
2008 03  08.41761  15 40 55.29   -16 31 40.7   20.9R 07JH43    734  Cy2205      
2008 03  11.34177  15 40 51.39   -16 31 26.9   20.7R 07JH43    734  Cy2205      
2008 03  14.40491  15 40 46.25   -16 31 09.9         07JH43    675  Cy3582      
2008 03  14.44757  15 40 46.22   -16 31 09.6   21.3R 07JH43    673  Cy2205      
2008 03  14.46018  15 40 46.20   -16 31 09.2         07JH43    673  Cy2205      
2008 03  14.46910  15 40 46.17   -16 31 09.1         07JH43    673  Cy2205      
2008 03  14.48218  15 40 46.14   -16 31 08.8         07JH43    673  Cy2205      
2008 03  14.50021  15 40 46.07   -16 31 09.8         07JH43    675  Cy3582      
2008 05  03.36995  15 37 41.77   -16 21 58.4         07JH43    695  Cz0515      
2008 05  04.35577  15 37 36.83   -16 21 44.8         07JH43    695  Cz0515      
2008 05  04.35783  15 37 36.82   -16 21 44.7         07JH43    695  Cz0515      
2012 05  13.13999  15 57 14.40   -19 12 08.3   20.4R 07JH43    304  C~0iFS      
2012 05  13.19568  15 57 14.11   -19 12 07.7         07JH43    304  C~0iFS      
2012 05  13.25183  15 57 13.81   -19 12 07.1         07JH43    304  C~0iFS      
2012 05  14.07723  15 57 09.53   -19 11 57.8         07JH43    304  C~0iFS      
2012 05  14.24275  15 57 08.65   -19 11 56.0         07JH43    304  C~0iFS      
2012 05  14.39524  15 57 07.85   -19 11 54.3         07JH43    304  C~0iFS      
2012 05  15.04675  15 57 04.46   -19 11 47.0         07JH43    304  C~0iFS      
2012 05  15.19998  15 57 03.65   -19 11 45.2         07JH43    304  C~0iFS      
2012 05  15.33909  15 57 02.91   -19 11 43.6         07JH43    304  C~0iFS      
2012 05  16.03931  15 56 59.24   -19 11 35.6         07JH43    304  C~0iFS      
2012 05  16.18637  15 56 58.49   -19 11 34.1         07JH43    304  C~0iFS      
2012 05  16.30850  15 56 57.84   -19 11 32.8         07JH43    304  C~0iFS      

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    -0.22       0.00     0.48
  2  10.0041      0.00     0.34       0.00     0.11
  3  12.1148      0.00     0.30       0.00    -0.27
  4  18.1974      0.00    -0.32       0.00     0.11
  5  18.1975      0.00     0.08       0.00     0.47
  6  18.1975      0.00     0.11       0.00     0.36
  7  18.1976      0.00     0.42       0.00    -0.29
  8  18.2383      0.00     0.18       0.00     0.19
  9  18.2602      0.00    -0.32       0.00    -0.21
 10  19.1601      0.00     0.04       0.00    -0.56
 11  19.1601      0.00    -0.13       0.00     0.11
 12  23.1722      0.00     0.29       0.00     0.60
 13  23.1723      0.00     0.03       0.00     1.18
 14  23.1746      0.00     0.44       0.00     0.37
 15  23.1749      0.00    -0.10       0.00     0.74
 16  23.2734      0.00     0.06       0.00    -0.57
 17  23.2758      0.00    -0.12       0.00    -1.50
 18  23.2759      0.00     0.02       0.00    -0.10
 19  23.2761      0.00     0.06       0.00    -0.25
 20  23.2785      0.00     0.05       0.00    -0.08
 21  23.3497      0.00     0.29       0.00    -0.01
 22  23.3551      0.00     0.16       0.00    -0.03
 23  24.0019      0.00    -0.56       0.00    -0.21
 24  24.0099      0.00     0.68       0.00    -0.06
 25  24.0183      0.00    -0.42       0.00    -0.03
 26  24.0184      0.00     0.32       0.00     0.02
 27  24.0184      0.00     0.38       0.00     0.35
 28  24.0185      0.00     0.18       0.00     0.40
 29  24.0185      0.00     0.10       0.00     0.62
 30  24.0185      0.00    -0.44       0.00    -0.49
 31  24.1551      0.00    -0.06       0.00     0.11
 32  24.1578      0.00    -0.05       0.00     0.04
 33  24.1578      0.00    -0.05       0.00     0.11
 34  28.1818      0.00    -0.02       0.00    -0.11
 35  28.1820      0.00     0.04       0.00    -0.13
 36  28.1821      0.00    -0.01       0.00    -0.16
 37  28.1844      0.00     0.11       0.00    -0.12
 38  28.1848      0.00     0.06       0.00    -0.15
 39  28.1853      0.00     0.15       0.00    -0.20
 40  28.1870      0.00     0.01       0.00    -0.20
 41  28.1875      0.00     0.05       0.00    -0.09
 42  28.1878      0.00     0.03       0.00    -0.07
 43  28.1898      0.00    -0.31       0.00     0.05
 44  28.1902      0.00     0.16       0.00    -0.07
 45  28.1905      0.00     0.17       0.00    -0.15

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.

07JH43    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        39.214    39.214    39.214
ecceobj         0.034     0.034     0.034
incobj         18.205    18.205    18.205
qmin           34.542    33.235    34.110
qmax           44.701    46.547    45.580
amean          39.472    39.467    39.466
amin           38.965    38.882    38.960
amax           39.954    40.061    39.990
emean           0.063     0.092     0.077
emin            0.002     0.009     0.009
emax            0.124     0.163     0.140
imean          15.465    15.085    15.641
imin           13.355    12.933    13.371
imax           17.096    17.096    17.470
excite_mean     0.275     0.278     0.282
fracstop        1.000     1.000     1.000
cjmean          2.964     2.963     2.960

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       184.8     172.0     182.2
kozaiamp        179.9     180.0     180.0