Orbit Fit and Astrometric record for 99OZ3

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: 99OZ3     
# Created Thu Oct 18 01:07:35 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   27 observations of   27
# Arc:  15.85y
# First observation: 1999/07/21
#  Last observation: 2015/05/28
# Chi-squared of fit:   184.98 DOF:   48 RMS:  0.46
# Min/Max residuals:    -0.80    1.05
# Exact a, adot, b, bdot, g, gdot:
  1.152460E-05  2.170019E-02 -4.359870E-07 -9.673495E-04  2.310812E-02 -1.580920E-03
# Covariance matrix:
  1.8857E-13  8.0260E-14  2.2594E-15 -4.8458E-15  4.8309E-13  2.7477E-13
  8.0260E-14  3.8894E-13  8.7330E-15 -1.8631E-14  8.3910E-13  1.0956E-12
  2.2594E-15  8.7330E-15  7.1831E-14 -5.4795E-15  1.9931E-14  2.4802E-14
 -4.8458E-15 -1.8631E-14 -5.4795E-15  2.2571E-15 -4.2599E-14 -5.2922E-14
  4.8309E-13  8.3910E-13  1.9931E-14 -4.2599E-14  2.7237E-12  2.4741E-12
  2.7477E-13  1.0956E-12  2.4802E-14 -5.2922E-14  2.4741E-12  3.1087E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.056524  -43.046838    0.330512    0.000713   -0.958321  2451381.041183
# Heliocentric elements and errors
Epoch:              2451380.5000  =  1999/07/21
Mean Anomaly:          273.98340 +/-     0.155
Argument of Peri:      274.28218 +/-     0.120
Long of Asc Node:      137.77596 +/-     0.000
Inclination:             2.54921 +/-     0.000
Eccentricity:         0.08297753 +/-    0.0001
Semi-Major Axis:     44.18989150 +/-    0.0109
Time of Perihelion: 2477017.2279 +/-      55.1
Perihelion:          40.52312337 +/-    0.0106
Aphelion:            47.85665964 +/-    0.0123
Period (y)              293.7600 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.10799811 +/-    0.0022
Ecliptic Y          -30.43305406 +/-    0.0021
Ecliptic Z            0.04268667 +/-    0.0000
Ecliptic XDOT         0.00161472 +/-    0.0000
Ecliptic YDOT         0.00201519 +/-    0.0000
Ecliptic ZDOT        -0.00011475 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.23913282 +/-    0.0022
Geocenter to KBO     43.27490672 +/-    0.0031
# Hcoef:  7.26

The following table shows the complete astrometric record for 99OZ3. 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 (99OZ3) followed by the observatory code and reference code for the source of the astrometry.

1999 07  21.54044  21 17 32.81   -15 42 03.3   23.4R 99OZ3     568  Ca5927      
1999 07  21.56743  21 17 32.71   -15 42 03.6         99OZ3     568  Ca5927      
1999 07  21.59867  21 17 32.58   -15 42 04.1         99OZ3     568  Ca5927      
1999 08  06.23268  21 16 23.61   -15 47 27.5         99OZ3     807  Ca6755      
1999 08  07.15300  21 16 19.48   -15 47 47.4         99OZ3     807  Ca6755      
1999 08  07.15868  21 16 19.46   -15 47 47.6         99OZ3     807  Ca6755      
1999 08  07.33004  21 16 18.68   -15 47 51.3         99OZ3     807  Ca6755      
1999 08  07.33572  21 16 18.60   -15 47 51.3         99OZ3     807  Ca6755      
1999 08  07.34140  21 16 18.63   -15 47 51.4         99OZ3     807  Ca6755      
1999 08  09.37583  21 16 09.36   -15 48 34.6   23.4R 99OZ3     675  Ca5927      
1999 08  09.38318  21 16 09.33   -15 48 34.9   23.5R 99OZ3     675  Ca5927      
1999 08  09.40595  21 16 09.22   -15 48 35.4   23.4R 99OZ3     675  Ca5927      
1999 08  09.41334  21 16 09.20   -15 48 35.5   23.3R 99OZ3     675  Ca5927      
1999 08  09.43602  21 16 09.10   -15 48 36.1   23.6R 99OZ3     675  Ca5927      
2000 08  05.44974  21 21 24.13   -15 27 54.1   23.4R 99OZ3     568  Cb7609      
2000 08  05.49114  21 21 23.94   -15 27 55.2   23.2R 99OZ3     568  Cb7609      
2000 08  05.53261  21 21 23.73   -15 27 55.9   23.6R 99OZ3     568  Cb7609      
2000 08  06.43790  21 21 19.68   -15 28 15.4   23.7R 99OZ3     568  Cb7609      
2000 08  06.48026  21 21 19.48   -15 28 16.6         99OZ3     568  Cb7609      
2001 09  19.28313  21 23 17.95   -15 22 58.2   23.1R 99OZ3     675  Ce0165      
2001 09  19.28842  21 23 17.94   -15 22 58.4   23.2R 99OZ3     675  Ce0165      
2001 09  19.31659  21 23 17.82   -15 22 59.1   23.2R 99OZ3     675  Ce0165      
2015 05  27.351097 22 38 39.96   -09 26 36.8   23.6r 99OZ3     W84  C~1j7P      
2015 05  27.372572 22 38 39.98   -09 26 36.5   23.4r 99OZ3     W84  C~1j7P      
2015 05  27.394052 22 38 39.99   -09 26 36.5   23.4r 99OZ3     W84  C~1j7P      
2015 05  27.415544 22 38 40.01   -09 26 36.3   23.5r 99OZ3     W84  C~1j7P      
2015 05  28.348963 22 38 40.97   -09 26 32.4   22.9r 99OZ3     W84  C~1j7P      

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     0.74       0.00     0.18
  2   0.0001      0.00     0.99       0.00     0.41
  3   0.0002      0.00     1.05       0.00     0.53
  4   0.0430      0.00    -0.03       0.00     0.06
  5   0.0455      0.00     0.34       0.00    -0.39
  6   0.0455      0.00     0.43       0.00    -0.47
  7   0.0460      0.00     0.54       0.00    -0.55
  8   0.0460      0.00    -0.27       0.00    -0.44
  9   0.0460      0.00     0.57       0.00    -0.42
 10   0.0516      0.00    -0.40       0.00    -0.36
 11   0.0516      0.00    -0.35       0.00    -0.51
 12   0.0517      0.00    -0.43       0.00    -0.53
 13   0.0517      0.00    -0.22       0.00    -0.47
 14   0.0517      0.00    -0.15       0.00    -0.59
 15   1.0429      0.00    -0.50       0.00     0.67
 16   1.0430      0.00    -0.50       0.00     0.46
 17   1.0431      0.00    -0.80       0.00     0.65
 18   1.0456      0.00    -0.46       0.00     0.65
 19   1.0457      0.00    -0.54       0.00     0.36
 20   2.1649      0.00     0.34       0.00     0.62
 21   2.1649      0.00     0.46       0.00     0.51
 22   2.1650      0.00     0.11       0.00     0.26
 23  15.8489      0.00     0.17       0.00    -0.19
 24  15.8490      0.00     0.15       0.00     0.01
 25  15.8490      0.00    -0.03       0.00    -0.08
 26  15.8491      0.00    -0.05       0.00     0.02
 27  15.8516      0.00    -0.14       0.00    -0.11

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.

99OZ3    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.120    44.120    44.120
ecceobj         0.083     0.083     0.083
incobj          2.550     2.550     2.550
qmin           39.209    39.226    39.186
qmax           49.158    49.149    49.135
amean          44.034    44.034    44.034
amin           43.678    43.683    43.673
amax           44.423    44.426    44.414
emean           0.090     0.090     0.090
emin            0.073     0.073     0.073
emax            0.107     0.107     0.107
imean           2.239     2.238     2.239
imin            1.350     1.350     1.350
imax            2.962     2.961     2.962
excite_mean     0.098     0.098     0.098
fracstop        1.000     1.000     1.000
cjmean          3.090     3.090     3.090

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       182.6     182.7     182.7
kozaiamp        180.0     180.0     180.0