Orbit Fit and Astrometric record for 99RV215

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: 99RV215   
# Created Sun Oct 22 01:37:04 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   16
# Arc:  15.12y
# First observation: 1999/09/07
#  Last observation: 2014/10/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000617   0.031895  -0.000345   0.011628   0.028647   0.000000
# WARNING -- MRQMIN stopped after  21 iterations
# Chi-squared of fit:    35.57 DOF:   26 RMS:  0.26
# Min/Max residuals:    -0.49    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.632352E-05  2.988126E-02  6.452791E-06  1.085669E-02  2.807708E-02  3.774564E-04
# Covariance matrix:
  1.9251E-13 -1.2098E-13  1.8418E-14 -4.3996E-14  8.6987E-14 -2.4324E-13
 -1.2098E-13  4.3660E-13 -6.1541E-14  1.6393E-13  1.4905E-13  9.1514E-13
  1.8418E-14 -6.1541E-14  1.2090E-13 -3.1872E-14 -1.5172E-14 -1.3024E-13
 -4.3996E-14  1.6393E-13 -3.1872E-14  6.5324E-14  5.2820E-14  3.4635E-13
  8.6987E-14  1.4905E-13 -1.5172E-14  5.2820E-14  3.5925E-13  3.0071E-13
 -2.4324E-13  9.1514E-13 -1.3024E-13  3.4635E-13  3.0071E-13  1.9333E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    9.339201   16.098495    0.528099    0.137764   -0.839038  2451429.035503
# Heliocentric elements and errors
Epoch:              2451420.5000  =  1999/08/30
Mean Anomaly:          359.12081 +/-     0.010
Argument of Peri:       26.36792 +/-     0.016
Long of Asc Node:      351.78368 +/-     0.000
Inclination:            21.94875 +/-     0.000
Eccentricity:         0.19124192 +/-    0.0001
Semi-Major Axis:     45.08848174 +/-    0.0049
Time of Perihelion: 2451690.5692 +/-       3.2
Perihelion:          36.46567403 +/-    0.0052
Aphelion:            53.71128945 +/-    0.0067
Period (y)              302.7657 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.73687283 +/-    0.0007
Ecliptic Y            9.47590752 +/-    0.0002
Ecliptic Z            5.77999750 +/-    0.0001
Ecliptic XDOT        -0.00094221 +/-    0.0000
Ecliptic YDOT         0.00277027 +/-    0.0000
Ecliptic ZDOT         0.00105066 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.46712942 +/-    0.0007
Geocenter to KBO     35.61623440 +/-    0.0008
# Hcoef:  8.39

The following table shows the complete astrometric record for 99RV215. 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 (99RV215) followed by the observatory code and reference code for the source of the astrometry.

1999 09  07.53476  00 44 30.77   +14 56 06.5   24.0R 99RV215   568  Ca9937      
1999 09  07.58118  00 44 30.56   +14 56 06.1   24.3R 99RV215   568  Ca9937      
1999 09  07.61487  00 44 30.39   +14 56 05.4   24.2R 99RV215   568  Ca9937      
1999 09  10.57081  00 44 16.29   +14 55 22.2   24.0R 99RV215   568  Ca9937      
1999 09  10.58125  00 44 16.20   +14 55 22.6   24.4R 99RV215   568  Ca9937      
1999 10  09.47089  00 41 43.95   +14 44 39.2   23.4R 99RV215   568  Ca9937      
1999 10  09.51708  00 41 43.69   +14 44 38.0   23.1R 99RV215   568  Ca9937      
1999 11  11.40176  00 39 02.09   +14 28 25.4   23.5R 99RV215   568  Ca9937      
1999 11  11.45398  00 39 01.89   +14 28 24.0   23.0R 99RV215   568  Ca9937      
2000 08  28.58291  00 50 43.52   +16 12 18.9   23.5R 99RV215   568  Cb9109      
2000 08  28.61419  00 50 43.38   +16 12 18.6   23.4R 99RV215   568  Cb9109      
2000 08  30.59770  00 50 35.14   +16 12 05.2   23.4R 99RV215   568  Cb9109      
2000 12  27.23846  00 42 52.170  +15 26 32.73        99RV215   568  Cl2529      
2000 12  28.24804  00 42 52.481  +15 26 22.57        99RV215   568  Cl2529      
2014 10  22.33334  02 12 15.77   +31 57 22.9   23.8R 99RV215   G37  C~1Bx9      
2014 10  22.42021  02 12 15.23   +31 57 21.3         99RV215   G37  C~1Bx9      

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     0.10       0.00    -0.07
  2   0.0001     -2.95     0.37       0.84     0.08
  3   0.0002     -5.49     0.16       1.17    -0.08
  4   0.0083   -210.27     0.56      42.35    -0.24
  5   0.0083   -211.31     0.27      43.24     0.49
  6   0.0874  -2493.05    -0.45     329.40    -0.16
  7   0.0876  -2496.98    -0.49     329.80    -0.05
  8   0.1776  -5036.72    -0.26     376.02    -0.34
  9   0.1777  -5039.95     0.02     375.91    -0.32
 10   0.9748   6750.44    -0.18    2094.18    -0.06
 11   0.9749   6748.46    -0.35    2094.69    -0.10
 12   0.9803   6633.78    -0.16    2128.51     0.48
 13   1.3051   -586.51     0.20    2242.51     0.25
 14   1.3079   -586.42     0.18    2231.40     0.17
 15  15.1233  95026.69    -0.01   36342.83    -0.01
 16  15.1236  95018.04     0.03   36342.70    -0.03

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.

99RV215    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.071    45.085    45.056
ecceobj         0.191     0.191     0.191
incobj         21.956    21.956    21.956
qmin           35.285    35.324    35.223
qmax           54.527    54.513    54.498
amean          44.694    44.710    44.681
amin           44.292    44.338    44.281
amax           45.139    45.151    45.133
emean           0.190     0.190     0.190
emin            0.171     0.172     0.171
emax            0.209     0.208     0.209
imean          22.374    22.382    22.361
imin           21.780    21.797    21.756
imax           22.929    22.929    22.959
excite_mean     0.425     0.425     0.425
fracstop        1.000     1.000     1.000
cjmean          2.885     2.885     2.885

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       171.6     170.6     173.1
kozaiamp        180.0     180.0     180.0