Orbit Fit and Astrometric record for 99RY214

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: 99RY214   
# Created Tue Nov 20 02:07:37 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   29 observations of   29
# Arc:  19.02y
# First observation: 1999/09/06
#  Last observation: 2018/09/14
# Chi-squared of fit:    95.33 DOF:   52 RMS:  0.32
# Min/Max residuals:    -0.73    0.65
# Exact a, adot, b, bdot, g, gdot:
  1.702573E-05  2.940064E-02  4.914547E-06  5.254188E-03  2.711742E-02 -1.830888E-03
# Covariance matrix:
  1.2626E-13 -2.1108E-14  4.8593E-15 -2.6223E-15  8.1587E-14 -2.3284E-14
 -2.1108E-14  1.1707E-14 -2.6410E-15  1.9065E-15 -2.6364E-15  1.7425E-14
  4.8593E-15 -2.6410E-15  8.0054E-14 -6.3008E-15  3.9325E-15 -4.2701E-15
 -2.6223E-15  1.9065E-15 -6.3008E-15  1.4696E-15 -6.7647E-17  3.1492E-15
  8.1587E-14 -2.6364E-15  3.9325E-15 -6.7647E-17  2.4406E-13  1.5184E-15
 -2.3284E-14  1.7425E-14 -4.2701E-15  3.1492E-15  1.5184E-15  2.8834E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    9.362985    9.349903    0.441548    0.145973   -0.886720  2451427.939683
# Heliocentric elements and errors
Epoch:              2451428.5000  =  1999/09/07
Mean Anomaly:          341.20836 +/-     0.006
Argument of Peri:       69.79738 +/-     0.008
Long of Asc Node:      327.27662 +/-     0.000
Inclination:            13.67308 +/-     0.000
Eccentricity:         0.18680242 +/-    0.0001
Semi-Major Axis:     45.62023734 +/-    0.0044
Time of Perihelion: 2457303.3513 +/-      15.4
Perihelion:          37.09826660 +/-    0.0044
Aphelion:            54.14220809 +/-    0.0058
Period (y)              308.1375 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.86799766 +/-    0.0007
Ecliptic Y            5.62409010 +/-    0.0001
Ecliptic Z            5.99960646 +/-    0.0001
Ecliptic XDOT        -0.00075144 +/-    0.0000
Ecliptic YDOT         0.00289361 +/-    0.0000
Ecliptic ZDOT         0.00049340 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.77404551 +/-    0.0006
Geocenter to KBO     36.87674155 +/-    0.0007
# Hcoef:  7.38

The following table shows the complete astrometric record for 99RY214. 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 (99RY214) followed by the observatory code and reference code for the source of the astrometry.

1999 09  06.43894  00 19 20.48   +12 17 59.3   22.8R 99RY214   568  Ca8546      
1999 09  06.48649  00 19 20.26   +12 17 58.6   22.8R 99RY214   568  Ca8546      
1999 09  06.52690  00 19 20.06   +12 17 57.8   22.8R 99RY214   568  Ca8546      
1999 09  09.47537  00 19 06.24   +12 16 58.6   22.8R 99RY214   568  Ca8546      
1999 09  09.48697  00 19 06.21   +12 16 58.6   22.8R 99RY214   568  Ca8546      
1999 09  10.47595  00 19 01.51   +12 16 37.7   22.9R 99RY214   568  Ca8546      
1999 09  10.48639  00 19 01.46   +12 16 37.3   22.6R 99RY214   568  Ca8546      
1999 10  08.40856  00 16 42.11   +12 04 09.5   23.2R 99RY214   568  Ca8546      
1999 10  08.43404  00 16 42.00   +12 04 08.8   23.0R 99RY214   568  Ca8546      
1999 11  10.31627  00 14 19.64   +11 46 56.2   23.1R 99RY214   568  Ca8546      
1999 11  10.36475  00 14 19.45   +11 46 54.2   23.1R 99RY214   568  Ca8546      
2000 08  27.55819  00 25 52.53   +13 17 31.9   22.9R 99RY214   568  Cb9109      
2000 08  27.59454  00 25 52.37   +13 17 31.1   23.0R 99RY214   568  Cb9109      
2000 08  29.60300  00 25 43.98   +13 17 03.9   22.7R 99RY214   568  Cb9109      
2000 08  29.63530  00 25 43.83   +13 17 03.5   22.9R 99RY214   568  Cb9109      
2000 12  27.22020  00 19 02.621  +12 27 43.75  22.0R 99RY214   568  Cl2529      
2000 12  28.22887  00 19 03.690  +12 27 36.46  22.1R 99RY214   568  Cl2529      
2002 11  05.32464  00 32 15.67   +14 40 40.9   22.5R 99RY214   568  Cl8251      
2002 11  05.36123  00 32 15.51   +14 40 40.1         99RY214   568  Cl8251      
2002 11  06.39525  00 32 11.33   +14 40 06.5         99RY214   568  Cl8251      
2007 07  12.35358  01 09 50.29   +19 33 25.0         99RY214   304  Cv1964      
2007 07  12.43263  01 09 50.35   +19 33 27.3         99RY214   304  Cv1964      
2008 09  20.37879  01 13 30.88   +20 32 18.4   23.6R 99RY214   250  S~06AL      
2008 09  20.38574  01 13 30.84   +20 32 18.2         99RY214   250  S~06AL      
2008 09  20.39199  01 13 30.81   +20 32 18.1         99RY214   250  S~06AL      
2008 09  20.39893  01 13 30.78   +20 32 18.0         99RY214   250  S~06AL      
2018 09  13.324640 02 23 33.138  +28 27 16.44  22.9R 99RY214   705              
2018 09  14.333860 02 23 29.553  +28 27 19.74        99RY214   705              
2018 09  14.447070 02 23 29.134  +28 27 20.15        99RY214   705              

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     0.18       0.00    -0.34
  2   0.0001      0.00     0.25       0.00    -0.12
  3   0.0002      0.00     0.11       0.00    -0.14
  4   0.0083      0.00    -0.12       0.00    -0.14
  5   0.0083      0.00     0.27       0.00     0.10
  6   0.0111      0.00     0.29       0.00     0.04
  7   0.0111      0.00     0.30       0.00    -0.14
  8   0.0875      0.00     0.32       0.00    -0.29
  9   0.0876      0.00     0.60       0.00    -0.20
 10   0.1776      0.00    -0.25       0.00     0.65
 11   0.1778      0.00    -0.58       0.00     0.10
 12   0.9750      0.00    -0.13       0.00    -0.13
 13   0.9751      0.00    -0.23       0.00    -0.45
 14   0.9806      0.00     0.11       0.00    -0.25
 15   0.9807      0.00    -0.05       0.00    -0.19
 16   1.3081      0.00    -0.66       0.00     0.54
 17   1.3109      0.00    -0.73       0.00     0.62
 18   3.1646      0.00     0.18       0.00    -0.46
 19   3.1647      0.00     0.08       0.00    -0.07
 20   3.1676      0.00     0.45       0.00    -0.14
 21   7.8464      0.00    -0.27       0.00     0.18
 22   7.8467      0.00    -0.40       0.00     0.28
 23   9.0402      0.00    -0.03       0.00     0.48
 24   9.0402      0.00    -0.11       0.00     0.40
 25   9.0403      0.00    -0.11       0.00     0.41
 26   9.0403      0.00    -0.05       0.00     0.42
 27  19.0195      0.00     0.05       0.00    -0.33
 28  19.0223      0.00     0.14       0.00    -0.24
 29  19.0226      0.00     0.14       0.00    -0.16

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.

99RY214    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.597    45.597    45.597
ecceobj         0.187     0.187     0.187
incobj         13.678    13.678    13.678
qmin           36.409    36.405    36.395
qmax           54.424    54.417    54.467
amean          45.195    45.195    45.195
amin           44.800    44.796    44.792
amax           45.643    45.648    45.658
emean           0.176     0.176     0.176
emin            0.161     0.160     0.161
emax            0.193     0.193     0.193
imean          14.849    14.850    14.850
imin           14.231    14.227    14.229
imax           15.532    15.531    15.533
excite_mean     0.311     0.311     0.311
fracstop        1.000     1.000     1.000
cjmean          2.997     2.997     2.997

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       181.5     181.5     181.6
kozaiamp        180.0     180.0     179.9