Orbit Fit and Astrometric record for 10LP68

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: 10LP68    
# Created Tue Dec 12 02:37:40 2017
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:   0.98y
# First observation: 2010/06/11
#  Last observation: 2011/06/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000006   0.030448  -0.000008   0.005608   0.028391   0.000000
# Chi-squared of fit:    63.51 DOF:   58 RMS:  0.25
# Min/Max residuals:    -0.62    0.84
# Exact a, adot, b, bdot, g, gdot:
  1.458945E-05  3.036286E-02  4.512777E-06  5.608142E-03  2.896155E-02  5.773048E-04
# Covariance matrix:
  7.5270E-14  3.0186E-13 -3.3406E-15  6.7281E-14  2.4024E-13  1.2269E-11
  3.0186E-13  1.9248E-10 -1.3873E-12  3.3378E-11  8.3609E-11  6.0908E-09
 -3.3406E-15 -1.3873E-12  7.3580E-14 -3.1658E-13 -6.0795E-13 -4.3995E-11
  6.7281E-14  3.3378E-11 -3.1658E-13  6.1312E-12  1.4536E-11  1.0581E-09
  2.4024E-13  8.3609E-11 -6.0795E-13  1.4536E-11  3.6907E-11  2.6525E-09
  1.2269E-11  6.0908E-09 -4.3995E-11  1.0581E-09  2.6525E-09  1.9308E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.511508 -111.091113   -0.192445   -0.043686   -0.994751  2455358.763846
# Heliocentric elements and errors
Epoch:              2455350.5000  =  2010/06/03
Mean Anomaly:           43.41872 +/-    16.517
Argument of Peri:      300.78299 +/-    18.118
Long of Asc Node:      262.19832 +/-     0.001
Inclination:            10.75285 +/-     0.001
Eccentricity:         0.03164287 +/-    0.0106
Semi-Major Axis:     36.34117007 +/-    0.0220
Time of Perihelion: 2445699.5228 +/-    3671.4
Perihelion:          35.19123127 +/-    0.3844
Aphelion:            37.49110887 +/-    0.3845
Period (y)              219.0819 +/-      0.20
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.58741722 +/-    0.0026
Ecliptic Y          -33.18493864 +/-    0.0068
Ecliptic Z           -1.51284593 +/-    0.0003
Ecliptic XDOT         0.00265151 +/-    0.0000
Ecliptic YDOT        -0.00109938 +/-    0.0000
Ecliptic ZDOT         0.00052722 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.52424422 +/-    0.0064
Geocenter to KBO     34.52854087 +/-    0.0072
# Hcoef:  9.05

The following table shows the complete astrometric record for 10LP68. 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 (10LP68) followed by the observatory code and reference code for the source of the astrometry.

2010 06  11.26308  16 27 05.91   -24 15 58.5   24.2R 10LP68    568  C~0Ip4      
2010 06  11.26412  16 27 05.90   -24 15 58.3         10LP68    568  C~0Ip4      
2010 06  11.26519  16 27 05.89   -24 15 58.4         10LP68    568  C~0Ip4      
2010 06  11.26623  16 27 05.90   -24 15 58.3         10LP68    568  C~0Ip4      
2010 06  11.26727  16 27 05.88   -24 15 58.2         10LP68    568  C~0Ip4      
2010 06  11.40732  16 27 05.00   -24 15 55.7         10LP68    568  C~0Ip4      
2010 06  11.40835  16 27 04.99   -24 15 55.7         10LP68    568  C~0Ip4      
2010 06  11.40942  16 27 04.98   -24 15 55.8         10LP68    568  C~0Ip4      
2010 06  11.41045  16 27 04.98   -24 15 55.8         10LP68    568  C~0Ip4      
2010 06  11.41148  16 27 04.98   -24 15 55.8         10LP68    568  C~0Ip4      
2010 06  11.44971  16 27 04.77   -24 15 55.0         10LP68    568  C~0Ip4      
2010 06  11.45074  16 27 04.75   -24 15 54.8         10LP68    568  C~0Ip4      
2010 06  11.45177  16 27 04.73   -24 15 54.9         10LP68    568  C~0Ip4      
2010 06  11.45280  16 27 04.74   -24 15 54.7         10LP68    568  C~0Ip4      
2010 06  11.45389  16 27 04.72   -24 15 54.8         10LP68    568  C~0Ip4      
2010 06  11.54909  16 27 04.24   -24 15 52.7         10LP68    568  C~0Ip4      
2010 06  12.26533  16 26 59.94   -24 15 41.2   24.2V 10LP68    568  C~0Ip4      
2010 06  12.43314  16 26 59.01   -24 15 38.5         10LP68    568  C~0Ip4      
2010 06  13.26363  16 26 54.13   -24 15 24.1   24.2V 10LP68    568  C~0Ip4      
2010 06  13.43552  16 26 53.11   -24 15 21.4         10LP68    568  C~0Ip4      
2010 09  02.24527  16 23 11.72   -23 58 39.2   25.0R 10LP68    568  C~0QjI      
2010 09  02.25839  16 23 11.75   -23 58 38.9         10LP68    568  C~0QjI      
2010 09  03.23391  16 23 13.36   -23 58 35.6         10LP68    568  C~0QjI      
2010 09  03.24695  16 23 13.36   -23 58 35.7         10LP68    568  C~0QjI      
2010 09  04.23338  16 23 15.10   -23 58 32.3         10LP68    568  C~0QjI      
2010 09  04.24641  16 23 15.11   -23 58 32.1         10LP68    568  C~0QjI      
2011 06  03.49748  16 35 38.75   -24 14 39.3   24.4r 10LP68    568  C~0Wc5      
2011 06  03.50023  16 35 38.73   -24 14 39.2         10LP68    568  C~0Wc5      
2011 06  03.50231  16 35 38.73   -24 14 39.2         10LP68    568  C~0Wc5      
2011 06  04.28097  16 35 34.06   -24 14 27.2         10LP68    568  C~0Wc5      
2011 06  04.28201  16 35 34.03   -24 14 27.0         10LP68    568  C~0Wc5      
2011 06  04.28305  16 35 34.02   -24 14 27.1         10LP68    568  C~0Wc5      

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     0.41       0.00    -0.30
  2   0.0000     -0.17     0.33       0.18    -0.13
  3   0.0000     -0.29     0.30       0.06    -0.25
  4   0.0000     -0.17     0.51       0.18    -0.13
  5   0.0000     -0.45     0.31       0.23    -0.08
  6   0.0004    -12.73    -0.26       0.81    -0.00
  7   0.0004    -12.86    -0.31       0.79    -0.03
  8   0.0004    -12.98    -0.34       0.67    -0.15
  9   0.0004    -12.98    -0.26       0.67    -0.16
 10   0.0004    -12.98    -0.17       0.67    -0.16
 11   0.0005    -15.95     0.07       1.01     0.03
 12   0.0005    -16.25    -0.15       1.16     0.18
 13   0.0005    -16.50    -0.31       1.02     0.03
 14   0.0005    -16.40    -0.12       1.24     0.25
 15   0.0005    -16.65    -0.29       1.10     0.10
 16   0.0008    -23.46     0.84       2.14     0.75
 17   0.0027    -83.34    -0.62       4.26    -0.08
 18   0.0032    -96.33     0.37       4.93    -0.03
 19   0.0055   -164.50    -0.17       8.65     0.22
 20   0.0059   -178.70    -0.13       9.12     0.04
 21   0.2272  -3331.61    -0.12     511.44    -0.17
 22   0.2272  -3331.25    -0.02     511.80     0.10
 23   0.2299  -3310.02     0.22     518.67    -0.01
 24   0.2299  -3310.00    -0.04     518.57    -0.20
 25   0.2326  -3287.03     0.08     525.83     0.00
 26   0.2327  -3286.92    -0.11     526.05     0.13
 27   0.9781   6925.54    -0.12    1126.85    -0.11
 28   0.9781   6925.25    -0.17    1126.91    -0.06
 29   0.9781   6925.25     0.01    1126.91    -0.06
 30   0.9802   6860.25     0.33    1129.72     0.04
 31   0.9802   6859.82    -0.01    1129.86     0.17
 32   0.9802   6859.69    -0.05    1129.74     0.05

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.

10LP68    quality flag:2

Type:       SCATNEAR      4:3E  SCATNEAR

axisobj        36.122    36.275    36.074
ecceobj         0.028     0.065     0.016
incobj         10.778    10.777    10.780
qmin           34.033    32.380    31.743
qmax           39.203    40.645    41.857
amean          36.496    36.480    36.446
amin           36.121    36.180    36.005
amax           36.862    36.798    36.965
emean           0.031     0.079     0.054
emin            0.000     0.053     0.001
emax            0.064     0.108     0.133
imean          12.105    14.435    11.247
imin            9.718    11.693     9.085
imax           13.975    16.328    13.070
excite_mean     0.212     0.262     0.205
fracstop        1.000     1.000     1.000
cjmean          2.978     2.948     2.981

libcent 0      -180.0     178.7    -180.0
libamp  0      -180.0      58.5    -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       177.2     180.4     139.7
kozaiamp        180.0     180.0     180.0