Orbit Fit and Astrometric record for 99RC215

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: 99RC215   
# Created Tue Oct 17 01:37:03 2017
# Orbit generated from Bernstein formalism
# Fitting   25 observations of   25
# Arc:  14.17y
# First observation: 1999/09/06
#  Last observation: 2013/11/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000624   0.023757   0.000018  -0.000584   0.023774   0.000000
# Chi-squared of fit:    52.17 DOF:   44 RMS:  0.26
# Min/Max residuals:    -0.45    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.456685E-05  2.259264E-02 -1.031550E-06 -5.542584E-04  2.353310E-02 -1.049621E-03
# Covariance matrix:
  1.7460E-13 -1.5754E-13 -2.1343E-15  3.9157E-15  2.8479E-14 -4.6025E-13
 -1.5754E-13  3.1237E-13  4.3397E-15 -7.9612E-15  7.0678E-14  9.3545E-13
 -2.1343E-15  4.3397E-15  8.0963E-14 -6.6256E-15  9.1326E-16  1.3078E-14
  3.9157E-15 -7.9612E-15 -6.6256E-15  2.0059E-15 -1.6743E-15 -2.3991E-14
  2.8479E-14  7.0678E-14  9.1326E-16 -1.6743E-15  2.1107E-13  1.9628E-13
 -4.6025E-13  9.3545E-13  1.3078E-14 -2.3991E-14  1.9628E-13  2.8190E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.048021    7.658508    0.413214    0.000544   -0.911986  2451428.041393
# Heliocentric elements and errors
Epoch:              2451420.5000  =  1999/08/30
Mean Anomaly:          295.54443 +/-     0.061
Argument of Peri:      249.05820 +/-     0.073
Long of Asc Node:      189.03610 +/-     0.001
Inclination:             1.40033 +/-     0.000
Eccentricity:         0.06139705 +/-    0.0001
Semi-Major Axis:     44.45142443 +/-    0.0035
Time of Perihelion: 2470801.8889 +/-      18.2
Perihelion:          41.72223820 +/-    0.0043
Aphelion:            47.18061066 +/-    0.0047
Period (y)              296.3717 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.08081064 +/-    0.0008
Ecliptic Y            5.37751686 +/-    0.0001
Ecliptic Z            0.03557649 +/-    0.0000
Ecliptic XDOT        -0.00047533 +/-    0.0000
Ecliptic YDOT         0.00259705 +/-    0.0000
Ecliptic ZDOT        -0.00006452 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.41514942 +/-    0.0008
Geocenter to KBO     42.49333477 +/-    0.0008
# Hcoef:  6.85

The following table shows the complete astrometric record for 99RC215. 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 (99RC215) followed by the observatory code and reference code for the source of the astrometry.

1999 09  06.54065  00 28 03.40   +03 04 58.3   22.7R 99RC215   568  Ca8546      
1999 09  06.57078  00 28 03.27   +03 04 57.4   22.8R 99RC215   568  Ca8546      
1999 09  06.60771  00 28 03.14   +03 04 56.5   22.6R 99RC215   568  Ca8546      
1999 09  10.52316  00 27 47.68   +03 03 15.7   22.9R 99RC215   568  Ca8546      
1999 09  10.53360  00 27 47.65   +03 03 15.2   22.9R 99RC215   568  Ca8546      
1999 10  08.46757  00 25 49.04   +02 50 21.8   23.1R 99RC215   568  Ca8546      
1999 10  08.49378  00 25 48.96   +02 50 21.4   22.9R 99RC215   568  Ca8546      
1999 11  09.39538  00 23 47.11   +02 37 03.6   22.9R 99RC215   568  Ca8546      
1999 11  09.43564  00 23 46.98   +02 37 03.3   22.9R 99RC215   568  Ca8546      
2000 08  08.33332  00 34 22.32   +03 43 36.3   22.9R 99RC215   809  Cc2286      
2000 08  08.38203  00 34 22.19   +03 43 35.3   23.0R 99RC215   809  Cc2286      
2000 08  08.41532  00 34 22.12   +03 43 34.8         99RC215   809  Cc2286      
2000 08  27.57650  00 33 27.11   +03 37 35.8   23.0R 99RC215   568  Cb9109      
2000 08  27.61252  00 33 26.99   +03 37 34.7   23.0R 99RC215   568  Cb9109      
2000 08  29.59551  00 33 20.08   +03 36 50.0   23.1R 99RC215   568  Cb9109      
2000 08  29.61833  00 33 20.00   +03 36 49.6   23.1R 99RC215   568  Cb9109      
2000 11  26.12588  00 27 49.83   +03 00 58.8   23.0R 99RC215   695  Cc2286      
2000 11  26.13124  00 27 49.89   +03 00 58.4   23.5R 99RC215   695  Cc2286      
2000 11  26.23251  00 27 49.65   +03 00 57.5   22.3R 99RC215   695  Cc2286      
2000 11  27.22284  00 27 47.69   +03 00 44.7   22.6R 99RC215   695  Cc2286      
2013 10  05.40110  01 35 23.71   +09 30 40.6   22.8R 99RC215   695  C~0zdB      
2013 10  05.46354  01 35 23.45   +09 30 38.9         99RC215   695  C~0zdB      
2013 10  06.40926  01 35 19.30   +09 30 14.4         99RC215   695  C~0zdB      
2013 11  06.26585  01 33 01.66   +09 16 48.5   22.9R 99RC215   G37  C~0yiW      
2013 11  06.32417  01 33 01.39   +09 16 46.3         99RC215   G37  C~0yiW      

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     0.14
  2   0.0001     -2.14    -0.08      -0.06     0.07
  3   0.0002     -4.29     0.15      -0.12     0.01
  4   0.0109   -256.84    -0.13      -1.30    -0.03
  5   0.0109   -257.45    -0.04      -1.58    -0.31
  6   0.0874  -2195.34    -0.05     -10.12    -0.30
  7   0.0875  -2196.60     0.56     -10.01    -0.19
  8   0.1748  -4189.44    -0.37     -20.80    -0.19
  9   0.1749  -4191.35    -0.20     -20.30     0.30
 10   0.9221   6129.88     0.36    -105.47     0.35
 11   0.9222   6127.69     0.02    -105.62     0.19
 12   0.9223   6126.53     0.13    -105.67     0.13
 13   0.9748   5227.57    -0.09    -111.75    -0.14
 14   0.9749   5225.48    -0.12    -112.06    -0.45
 15   0.9803   5112.72    -0.35    -112.44    -0.23
 16   0.9804   5111.46    -0.28    -112.34    -0.13
 17   1.2227   -281.31    -0.37    -139.79     0.42
 18   1.2227   -280.64     0.48    -140.51    -0.30
 19   1.2230   -284.30     0.24    -139.92     0.28
 20   1.2257   -316.33     0.01    -140.09     0.44
 21  14.0804  66664.63    -0.18   -1693.29     0.03
 22  14.0806  66659.99     0.06   -1693.47    -0.15
 23  14.0831  66586.99     0.17   -1693.82    -0.22
 24  14.1676  64176.26     0.26   -1696.66     0.45
 25  14.1678  64171.30    -0.32   -1697.27    -0.17

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.

99RC215    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.427    44.438    44.417
ecceobj         0.062     0.062     0.062
incobj          1.400     1.400     1.400
qmin           40.460    40.410    40.388
qmax           48.062    48.048    47.999
amean          44.117    44.128    44.107
amin           43.778    43.779    43.762
amax           44.484    44.497    44.475
emean           0.064     0.064     0.064
emin            0.048     0.047     0.048
emax            0.081     0.080     0.080
imean           2.412     2.410     2.413
imin            1.678     1.681     1.676
imax            3.091     3.087     3.095
excite_mean     0.077     0.077     0.077
fracstop        1.000     1.000     1.000
cjmean          3.096     3.096     3.096

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       194.6     194.2     194.7
kozaiamp        179.9     179.9     180.0