Orbit Fit and Astrometric record for 99RX214

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: 99RX214   
# Created Thu Oct 19 01:37:03 2017
# Orbit generated from Bernstein formalism
# Fitting   28 observations of   28
# Arc:  14.08y
# First observation: 1999/09/06
#  Last observation: 2013/10/06
Preliminary a, adot, b, bdot, g, gdot:
   0.000160   0.020119   0.000012   0.001695   0.022219   0.000000
# Chi-squared of fit:    51.34 DOF:   50 RMS:  0.24
# Min/Max residuals:    -0.73    0.54
# Exact a, adot, b, bdot, g, gdot:
  1.553019E-05  2.056424E-02  1.258003E-06  1.734833E-03  2.239660E-02  3.779166E-03
# Covariance matrix:
  1.0362E-13 -2.8123E-14  1.2377E-15 -1.9018E-15  4.9351E-14 -8.7847E-14
 -2.8123E-14  3.7364E-14 -1.9465E-15  3.0684E-15  1.0428E-14  1.4260E-13
  1.2377E-15 -1.9465E-15  7.9324E-14 -7.8676E-15 -1.1603E-16 -7.9523E-15
 -1.9018E-15  3.0684E-15 -7.8676E-15  2.5520E-15  4.0127E-16  1.2517E-14
  4.9351E-14  1.0428E-14 -1.1603E-16  4.0127E-16  2.4865E-13  2.1032E-14
 -8.7847E-14  1.4260E-13 -7.9523E-15  1.2517E-14  2.1032E-14  5.8149E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.157961    6.116986    0.390469    0.002309   -0.922001  2451427.920753
# Heliocentric elements and errors
Epoch:              2451420.5000  =  1999/08/30
Mean Anomaly:           73.67948 +/-     0.017
Argument of Peri:      268.52799 +/-     0.023
Long of Asc Node:        3.78591 +/-     0.000
Inclination:             4.80431 +/-     0.000
Eccentricity:         0.17105536 +/-    0.0000
Semi-Major Axis:     46.48976860 +/-    0.0043
Time of Perihelion: 2427724.3070 +/-       4.5
Perihelion:          38.53744471 +/-    0.0040
Aphelion:            54.44209248 +/-    0.0054
Period (y)              316.9891 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           45.36123390 +/-    0.0010
Ecliptic Y            4.47035817 +/-    0.0001
Ecliptic Z            0.12316981 +/-    0.0000
Ecliptic XDOT         0.00018682 +/-    0.0000
Ecliptic YDOT         0.00255703 +/-    0.0000
Ecliptic ZDOT         0.00021341 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.58114538 +/-    0.0010
Geocenter to KBO     44.64963575 +/-    0.0010
# Hcoef:  6.78

The following table shows the complete astrometric record for 99RX214. 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 (99RX214) followed by the observatory code and reference code for the source of the astrometry.

1999 09  06.42001  00 22 12.72   +02 34 27.7   22.9R 99RX214   568  Ca8546      
1999 09  06.46959  00 22 12.56   +02 34 26.6   22.4R 99RX214   568  Ca8546      
1999 09  06.51027  00 22 12.40   +02 34 25.7   22.4R 99RX214   568  Ca8546      
1999 09  09.50207  00 22 00.86   +02 33 14.6   22.9R 99RX214   568  Ca8546      
1999 09  09.51367  00 22 00.82   +02 33 14.0   23.7R 99RX214   568  Ca8546      
1999 09  10.49940  00 21 56.96   +02 32 50.7   23.1R 99RX214   568  Ca8546      
1999 09  10.50984  00 21 56.94   +02 32 50.3   23.0R 99RX214   568  Ca8546      
1999 10  08.45436  00 20 02.05   +02 20 58.0   23.5R 99RX214   568  Ca8546      
1999 10  08.48128  00 20 01.95   +02 20 57.3   23.7R 99RX214   568  Ca8546      
1999 11  10.34171  00 18 03.22   +02 08 40.2   23.1R 99RX214   568  Ca8546      
1999 11  10.38791  00 18 03.10   +02 08 39.6   23.7R 99RX214   568  Ca8546      
2000 08  08.35918  00 27 51.19   +03 16 43.2   23.4R 99RX214   809  Cc2286      
2000 08  08.38930  00 27 51.12   +03 16 42.6   23.3R 99RX214   809  Cc2286      
2000 08  08.42209  00 27 51.04   +03 16 42.3   23.1R 99RX214   809  Cc2286      
2000 08  28.50431  00 26 52.61   +03 10 51.2   23.0R 99RX214   568  Cb9109      
2000 08  28.55874  00 26 52.41   +03 10 50.1   23.0R 99RX214   568  Cb9109      
2000 08  30.55416  00 26 45.45   +03 10 08.0   23.1R 99RX214   568  Cb9109      
2000 08  30.56737  00 26 45.40   +03 10 07.7   23.1R 99RX214   568  Cb9109      
2000 12  27.22491  00 21 14.447  +02 36 16.69  22.5R 99RX214   568  Cl2529      
2000 12  28.23425  00 21 15.169  +02 36 21.84  22.5R 99RX214   568  Cl2529      
2007 09  18.43604  00 54 04.86   +06 47 45.7         99RX214   675  Cy6666      
2007 09  18.46473  00 54 04.73   +06 47 45.5         99RX214   675  Cy6666      
2008 10  09.403958 00 56 36.58   +07 09 56.3         99RX214   645  C~1h5B      
2008 10  09.404792 00 56 36.58   +07 09 56.3         99RX214   645  C~1h5B      
2008 10  09.407269 00 56 36.56   +07 09 56.3         99RX214   645  C~1h5B      
2013 10  05.38494  01 16 39.84   +09 41 21.1   22.8R 99RX214   695  C~0zdB      
2013 10  05.44872  01 16 39.58   +09 41 19.7         99RX214   695  C~0zdB      
2013 10  06.39203  01 16 35.75   +09 40 57.6         99RX214   695  C~0zdB      

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    -0.21       0.00    -0.01
  2   0.0001     -2.64     0.26      -0.06    -0.14
  3   0.0002     -5.20     0.24       0.06    -0.08
  4   0.0084   -192.14    -0.21       3.24    -0.07
  5   0.0085   -192.93    -0.25       2.93    -0.40
  6   0.0112   -255.27    -0.20       4.43     0.07
  7   0.0112   -255.70     0.04       4.18    -0.19
  8   0.0877  -2118.87     0.02      32.19    -0.05
  9   0.0878  -2120.52     0.18      32.14    -0.14
 10   0.1777  -4046.94    -0.10      60.95    -0.07
 11   0.1779  -4048.83     0.21      61.12     0.04
 12   0.9225   5661.15     0.13     324.39     0.54
 13   0.9226   5659.95     0.08     324.25     0.35
 14   0.9227   5658.73     0.12     324.45     0.50
 15   0.9776   4715.55     0.12     347.39    -0.21
 16   0.9778   4712.36     0.01     347.57    -0.13
 17   0.9833   4599.91    -0.20     350.06     0.09
 18   0.9833   4599.10    -0.24     350.08     0.09
 19   1.3082   -758.66     0.04     445.87     0.44
 20   1.3109   -746.69    -0.10     446.31     0.32
 21   8.0329  32515.52     0.11    2820.23    -0.73
 22   8.0330  32513.61     0.04    2820.79    -0.21
 23   9.0924  35183.20    -0.01    3187.15    -0.37
 24   9.0924  35183.20     0.05    3187.15    -0.37
 25   9.0924  35182.92    -0.06    3187.27    -0.26
 26  14.0807  56145.97    -0.12    4923.62     0.38
 27  14.0808  56141.57    -0.03    4923.74     0.44
 28  14.0834  56076.27     0.08    4924.14     0.20

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.

99RX214    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.450    46.463    46.437
ecceobj         0.170     0.170     0.170
incobj          4.807     4.807     4.807
qmin           37.687    37.746    37.729
qmax           55.210    55.054    55.043
amean          46.185    46.189    46.160
amin           45.762    45.798    45.764
amax           46.653    46.685    46.613
emean           0.167     0.167     0.167
emin            0.152     0.152     0.154
emax            0.183     0.181     0.181
imean           5.243     5.232     5.251
imin            4.555     4.536     4.544
imax            5.824     5.832     5.854
excite_mean     0.190     0.190     0.190
fracstop        1.000     1.000     1.000
cjmean          3.083     3.083     3.083

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       177.9     178.9     177.9
kozaiamp        180.0     180.0     180.0