Orbit Fit and Astrometric record for 01XV254

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: 01XV254   
# Created Fri Mar 29 01:10:43 2024
# Orbit generated from Bernstein formalism
# Fitting      7 observations of      7
# Arc:  58.89d
# First observation: 2001/12/09
#  Last observation: 2002/02/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.045883   0.000002   0.002088   0.026462   0.000000
# Chi-squared of fit:     1.50 DOF:      8 RMS:  0.08
# Min/Max residuals:    -0.16    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.420643E-05  1.962086E-02  1.734694E-06  2.097432E-03  2.216276E-02 -2.704437E-03
# Covariance matrix:
  4.2308E-12  5.2909E-09  4.4407E-13 -4.5628E-12  8.4307E-10 -8.4201E-09
  5.2909E-09  7.4856E-06  6.2896E-10 -6.5962E-09  1.1907E-06 -1.2346E-05
  4.4407E-13  6.2896E-10  4.8621E-13 -3.7765E-12  1.0004E-10 -1.0418E-09
 -4.5628E-12 -6.5962E-09 -3.7765E-12  5.2370E-11 -1.0475E-09  1.1479E-08
  8.4307E-10  1.1907E-06  1.0004E-10 -1.0475E-09  1.8943E-07 -1.9585E-06
 -8.4201E-09 -1.2346E-05 -1.0418E-09  1.1479E-08 -1.9585E-06  2.2187E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.971642  105.221300    0.454308   -0.014787   -0.867163  2452253.083543
# Heliocentric elements and errors
Epoch:              2452250.5000  =  2001/12/07
Mean Anomaly:          258.04090 +/-   131.105
Argument of Peri:      109.35664 +/-   105.993
Long of Asc Node:      113.51585 +/-     1.186
Inclination:             6.16216 +/-     0.822
Eccentricity:         0.15343038 +/-    0.1178
Semi-Major Axis:     43.68088813 +/-    9.8772
Time of Perihelion: 2482115.2665 +/-   37041.7
Perihelion:          36.97891297 +/-    9.8186
Aphelion:            50.38286329 +/-   12.5012
Period (y)              288.6991 +/-     97.92
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -11.63287539 +/-    0.2325
Ecliptic Y           44.49316697 +/-    0.8549
Ecliptic Z           -0.76506486 +/-    0.0150
Ecliptic XDOT        -0.00226085 +/-    0.0001
Ecliptic YDOT        -0.00095449 +/-    0.0006
Ecliptic ZDOT         0.00026494 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.99511953 +/-    0.8291
Geocenter to KBO     45.12074108 +/-    0.8861
# Hcoef:  6.99

The following table shows the complete astrometric record for 01XV254. 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 (01XV254) followed by the observatory code and reference code for the source of the astrometry.

2001 12  09.58280  07 05 36.08   +21 36 18.8         01XV254   568  Ce7056      
2001 12  09.61794  07 05 35.94   +21 36 19.1         01XV254   568  Ce7056      
2001 12  09.64248  07 05 35.82   +21 36 19.3         01XV254   568  Ce7056      
2002 01  09.38197  07 03 10.66   +21 40 32.2   23.6R 01XV254   568  Ce7056      
2002 01  09.40515  07 03 10.56   +21 40 32.7   23.3R 01XV254   568  Ce7056      
2002 02  06.42242  07 01 03.00   +21 44 28.1   22.8R 01XV254   568  Cf2430      
2002 02  06.47510  07 01 02.79   +21 44 28.5         01XV254   568  Cf2430      

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    -0.04       0.00    -0.05
     2   0.0001     -1.97     0.12       0.08     0.02
     3   0.0002     -3.66    -0.08       0.09     0.03
     4   0.0843  -2043.20    -0.09      28.03    -0.16
     5   0.0844  -2044.64     0.09      28.38     0.16
     6   0.1611  -3837.68    -0.02      72.68    -0.00
     7   0.1612  -3840.64     0.02      72.77     0.01

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.

01XV254    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