Orbit Fit and Astrometric record for 99JC132

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: 99JC132   
# Created Fri Nov  1 01:07:54 2024
# Orbit generated from Bernstein formalism
# Fitting     24 observations of     24
# Arc:   1.10d
# First observation: 1999/05/10
#  Last observation: 1999/05/11
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:    16.34 DOF:     44 RMS:  0.15
# Min/Max residuals:    -0.31    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.627734E-05  2.680247E-02 -1.759704E-06 -2.515562E-03  2.628493E-02  0.000000E+00
# Covariance matrix:
  3.6329E-11  5.9971E-08  8.0656E-14  1.0698E-10  1.0056E-08  0.0000E+00
  5.9971E-08  9.9391E-05  1.3355E-10  1.7715E-07  1.6651E-05  0.0000E+00
  8.0656E-14  1.3355E-10  9.3658E-14 -3.1874E-11  2.2381E-11  0.0000E+00
  1.0698E-10  1.7715E-07 -3.1874E-11  3.2282E-08  2.9687E-08  0.0000E+00
  1.0056E-08  1.6651E-05  2.2381E-11  2.9687E-08  2.7904E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  2.3897E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.319906 -147.698414   -0.288226    0.005227   -0.973885  2451308.679093
# Heliocentric elements and errors
Epoch:              2451300.5000  =  1999/05/02
Mean Anomaly:           11.98640 +/-   314.645
Argument of Peri:      163.89501 +/-    21.321
Long of Asc Node:       36.03868 +/-     1.297
Inclination:             5.38929 +/-     2.063
Eccentricity:         0.03084610 +/-    0.5671
Semi-Major Axis:     40.22411958 +/-   21.0125
Time of Perihelion: 2448197.9814 +/-  267792.9
Perihelion:          38.98336217 +/-   30.5778
Aphelion:            41.46487698 +/-   31.4560
Period (y)              255.1162 +/-    199.90
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -32.81733385 +/-    2.0437
Ecliptic Y          -21.09352068 +/-    1.2918
Ecliptic Z            0.21234040 +/-    0.0135
Ecliptic XDOT         0.00148793 +/-    0.0014
Ecliptic YDOT        -0.00235182 +/-    0.0011
Ecliptic ZDOT        -0.00026199 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.01229427 +/-    1.8557
Geocenter to KBO     38.04461216 +/-    2.4178
# Hcoef:  8.75

The following table shows the complete astrometric record for 99JC132. 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 (99JC132) followed by the observatory code and reference code for the source of the astrometry.

1999 05  10.17835  14 00 54.75   -11 58 19.8   24.6R 99JC132   807  Ca5619      
1999 05  10.18522  14 00 54.73   -11 58 19.5   24.7R 99JC132   807  Ca5619      
1999 05  10.19209  14 00 54.69   -11 58 19.5   24.2R 99JC132   807  Ca5619      
1999 05  10.19896  14 00 54.65   -11 58 19.6   24.1R 99JC132   807  Ca5619      
1999 05  10.20584  14 00 54.63   -11 58 19.2   23.8R 99JC132   807  Ca5619      
1999 05  10.21271  14 00 54.57   -11 58 18.9   24.4R 99JC132   807  Ca5619      
1999 05  10.21958  14 00 54.55   -11 58 18.6   24.6R 99JC132   807  Ca5619      
1999 05  10.22645  14 00 54.52   -11 58 18.8   24.7R 99JC132   807  Ca5619      
1999 05  10.24021  14 00 54.45   -11 58 18.7   24.4R 99JC132   807  Ca5619      
1999 05  10.25395  14 00 54.38   -11 58 18.0   24.2R 99JC132   807  Ca5619      
1999 05  10.26769  14 00 54.31   -11 58 17.8   24.5R 99JC132   807  Ca5619      
1999 05  11.17804  14 00 50.01   -11 57 56.3   24.7R 99JC132   807  Ca5619      
1999 05  11.19178  14 00 49.97   -11 57 55.8   24.7R 99JC132   807  Ca5619      
1999 05  11.19865  14 00 49.93   -11 57 55.4   24.5R 99JC132   807  Ca5619      
1999 05  11.20553  14 00 49.88   -11 57 55.4   24.3R 99JC132   807  Ca5619      
1999 05  11.21239  14 00 49.85   -11 57 55.4   24.1R 99JC132   807  Ca5619      
1999 05  11.21926  14 00 49.82   -11 57 55.1   24.1R 99JC132   807  Ca5619      
1999 05  11.23300  14 00 49.74   -11 57 54.8   24.2R 99JC132   807  Ca5619      
1999 05  11.23987  14 00 49.71   -11 57 54.6   24.2R 99JC132   807  Ca5619      
1999 05  11.24674  14 00 49.66   -11 57 54.6   24.1R 99JC132   807  Ca5619      
1999 05  11.25362  14 00 49.64   -11 57 54.1   23.6R 99JC132   807  Ca5619      
1999 05  11.26048  14 00 49.61   -11 57 54.0   24.0R 99JC132   807  Ca5619      
1999 05  11.26735  14 00 49.59   -11 57 54.0   24.0R 99JC132   807  Ca5619      
1999 05  11.27422  14 00 49.56   -11 57 53.7   24.5R 99JC132   807  Ca5620      

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    -0.03       0.00     0.05
     2   0.0000     -0.38     0.10       0.18     0.24
     3   0.0000     -0.93     0.07      -0.02     0.06
     4   0.0001     -1.45     0.06      -0.32    -0.23
     5   0.0001     -1.86     0.17      -0.04     0.06
     6   0.0001     -2.79    -0.25      -0.06     0.05
     7   0.0001     -3.17    -0.11       0.12     0.25
     8   0.0001     -3.51     0.06      -0.22    -0.08
     9   0.0002     -4.51     0.09      -0.48    -0.31
    10   0.0002     -5.72    -0.09      -0.18     0.02
    11   0.0002     -6.75    -0.10      -0.34    -0.13
    12   0.0027    -73.39     0.04      -1.84    -0.22
    13   0.0028    -74.12     0.34      -1.57     0.08
    14   0.0028    -74.81     0.16      -1.40     0.26
    15   0.0028    -75.49    -0.02      -1.65     0.02
    16   0.0028    -75.91     0.08      -1.80    -0.12
    17   0.0028    -76.42     0.07      -1.67     0.03
    18   0.0029    -77.63    -0.11      -1.79    -0.07
    19   0.0029    -78.11    -0.09      -1.76    -0.02
    20   0.0029    -78.80    -0.26      -2.01    -0.26
    21   0.0029    -79.25    -0.20      -1.64     0.12
    22   0.0030    -79.70    -0.14      -1.70     0.08
    23   0.0030    -79.97     0.09      -1.80    -0.01
    24   0.0030    -80.49     0.09      -1.67     0.13

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.

99JC132    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0