Orbit Fit and Astrometric record for 01KL76

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: 01KL76    
# Created Fri Oct 20 01:37:14 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   22
# Arc:   7.02y
# First observation: 2001/05/22
#  Last observation: 2008/05/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000120   0.018414  -0.000005   0.000417   0.020737   0.000000
# Chi-squared of fit:    14.71 DOF:   34 RMS:  0.15
# Min/Max residuals:    -0.31    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.351266E-05  1.820882E-02 -1.881260E-07  4.119272E-04  2.111283E-02 -7.753609E-04
# Covariance matrix:
  2.7439E-13 -3.4411E-13  4.3566E-15 -7.5625E-15  4.3187E-14 -2.4275E-12
 -3.4411E-13  9.0012E-13 -1.1865E-14  2.1284E-14 -4.5705E-13  6.8471E-12
  4.3566E-15 -1.1865E-14  1.1938E-13 -2.2669E-14  5.8984E-15 -9.1285E-14
 -7.5625E-15  2.1284E-14 -2.2669E-14  1.1476E-14 -1.1378E-14  1.6408E-13
  4.3187E-14 -4.5705E-13  5.8984E-15 -1.1378E-14  6.2013E-13 -3.6773E-12
 -2.4275E-12  6.8471E-12 -9.1285E-14  1.6408E-13 -3.6773E-12  5.2792E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.299650 -117.327815    0.027303   -0.005455   -1.018370  2452051.705673
# Heliocentric elements and errors
Epoch:              2452050.5000  =  2001/05/21
Mean Anomaly:          206.86050 +/-     0.153
Argument of Peri:      145.21196 +/-     0.153
Long of Asc Node:      255.30272 +/-     0.003
Inclination:             1.33830 +/-     0.000
Eccentricity:         0.10214475 +/-    0.0003
Semi-Major Axis:     44.26077934 +/-    0.0076
Time of Perihelion: 2497802.6755 +/-      44.2
Perihelion:          39.73977322 +/-    0.0145
Aphelion:            48.78178545 +/-    0.0153
Period (y)              294.4671 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.23161342 +/-    0.0008
Ecliptic Y          -42.96496480 +/-    0.0016
Ecliptic Z           -0.24771803 +/-    0.0000
Ecliptic XDOT         0.00213536 +/-    0.0000
Ecliptic YDOT        -0.00099264 +/-    0.0000
Ecliptic ZDOT         0.00005414 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.37658731 +/-    0.0014
Geocenter to KBO     47.36455753 +/-    0.0018
# Hcoef:  6.47

The following table shows the complete astrometric record for 01KL76. 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 (01KL76) followed by the observatory code and reference code for the source of the astrometry.

2001 05  22.20493  16 02 11.48   -20 59 17.7   23.0R 01KL76    807  Cd1817      
2001 05  22.28507  16 02 11.12   -20 59 16.8         01KL76    807  Cd1817      
2001 06  10.02432  16 00 48.95   -20 55 20.4   23.4R 01KL76    304  Cd1817      
2001 06  10.09956  16 00 48.62   -20 55 19.5         01KL76    304  Cd1817      
2001 07  24.27778  15 58 26.67   -20 48 13.7         01KL76    568  Cd3323      
2001 07  24.31517  15 58 26.61   -20 48 13.3         01KL76    568  Cd3323      
2001 07  25.30929  15 58 24.81   -20 48 07.6         01KL76    568  Cd3323      
2002 03  22.57173  16 10 04.54   -21 19 11.5         01KL76    568  Cf4617      
2002 03  22.60925  16 10 04.47   -21 19 11.6         01KL76    568  Cf4617      
2002 04  06.27987  16 09 32.61   -21 17 48.6   22.7R 01KL76    807  Ch1324      
2002 04  07.28495  16 09 29.87   -21 17 41.5         01KL76    807  Ch1324      
2002 04  07.38104  16 09 29.57   -21 17 40.9         01KL76    807  Ch1324      
2002 04  11.40992  16 09 17.84   -21 17 10.2   21.9R 01KL76    695  Cg5781      
2002 04  11.45600  16 09 17.70   -21 17 10.3         01KL76    695  Cg5781      
2002 04  11.53042  16 09 17.48   -21 17 09.5   22.8R 01KL76    568  Cf4617      
2002 04  11.58560  16 09 17.31   -21 17 09.1         01KL76    568  Cf4617      
2003 05  01.51568  16 12 31.62   -21 24 04.3   23.4R 01KL76    568  Ch9866      
2003 05  01.56138  16 12 31.48   -21 24 03.7         01KL76    568  Ch9866      
2008 05  30.60518  16 32 47.99   -22 03 33.6   23.5R 01KL76    250  S~06AP      
2008 05  30.61143  16 32 47.95   -22 03 33.6         01KL76    250  S~06AP      
2008 05  30.61768  16 32 47.92   -22 03 33.5         01KL76    250  S~06AP      
2008 05  30.62462  16 32 47.89   -22 03 33.5         01KL76    250  S~06AP      

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     0.10
  2   0.0002     -5.12     0.09      -0.10    -0.01
  3   0.0515  -1180.18     0.08       5.34     0.13
  4   0.0517  -1184.89    -0.02       5.30     0.10
  5   0.1727  -3219.73    -0.08      25.60     0.31
  6   0.1728  -3220.63 (   0.04)     25.82 (   0.52)
  7   0.1755  -3246.51 (  -0.17)     26.33 (   0.47)
  8   0.8333   6726.38     0.17      82.01    -0.05
  9   0.8334   6725.43     0.12      81.74    -0.31
 10   0.8736   6272.08    -0.16      81.48     0.18
 11   0.8763   6233.10     0.07      81.40     0.13
 12   0.8766   6228.86    -0.27      81.22    -0.03
 13   0.8876   6061.92    -0.16      81.15     0.14
 14   0.8878   6060.02    -0.03      80.69    -0.31
 15   0.8880   6056.85    -0.01      80.91    -0.13
 16   0.8881   6054.43     0.04      80.86    -0.16
 17   1.9420   8803.00    -0.23     167.05    -0.22
 18   1.9421   8800.96     0.39     167.29     0.02
 19   7.0237  26042.17     0.12     604.33     0.09
 20   7.0237  26041.61    -0.03     604.25     0.00
 21   7.0237  26041.18    -0.06     604.28     0.04
 22   7.0237  26040.76    -0.03     604.22    -0.02

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.

01KL76    quality flag:3

Type:        9:5EEEE   9:5EEEE   9:5EEEE

axisobj        44.277    44.299    44.254
ecceobj         0.103     0.102     0.104
incobj          1.335     1.335     1.335
qmin           39.619    39.648    39.434
qmax           49.825    49.790    49.933
amean          44.555    44.555    44.555
amin           44.194    44.180    44.183
amax           44.954    44.965    44.967
emean           0.098     0.096     0.101
emin            0.087     0.086     0.091
emax            0.108     0.107     0.111
imean           3.076     3.099     3.085
imin            2.460     2.442     2.413
imax            3.695     3.698     3.665
excite_mean     0.112     0.111     0.115
fracstop        1.000     1.000     1.000
cjmean          3.093     3.093     3.092

libcent 0       182.1     176.8     179.6
libamp  0        53.2     104.5     110.4
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       180.4     183.6     183.9
kozaiamp        179.9     180.0     179.9