Orbit Fit and Astrometric record for 10LO33

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: 10LO33    
# Created Sat Oct 20 01:08:48 2018
# Orbit generated from Bernstein formalism
# Fitting   72 observations of   76
# Arc:   4.26y
# First observation: 2010/05/18
#  Last observation: 2014/08/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.001949   0.079104  -0.001479   0.025654   0.057622   0.000000
# Chi-squared of fit:    48.06 DOF:  138 RMS:  0.14
# Min/Max residuals:    -0.47    0.40
# Exact a, adot, b, bdot, g, gdot:
  2.096506E-05  7.074040E-02  6.510418E-06  2.272093E-02  5.233930E-02 -2.274446E-02
# Covariance matrix:
  9.9739E-14 -5.7018E-14  5.5335E-15 -1.2121E-14  1.5882E-15 -1.0793E-13
 -5.7018E-14  1.1652E-13 -1.7458E-14  3.7692E-14  4.7815E-14  3.3191E-13
  5.5335E-15 -1.7458E-14  8.6714E-14 -2.8420E-14 -7.7049E-15 -5.3152E-14
 -1.2121E-14  3.7692E-14 -2.8420E-14  2.0548E-14  1.6028E-14  1.1484E-13
  1.5882E-15  4.7815E-14 -7.7049E-15  1.6028E-14  7.9439E-14  1.3697E-13
 -1.0793E-13  3.3191E-13 -5.3152E-14  1.1484E-13  1.3697E-13  1.0119E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.278443 -122.607596    0.007691   -0.022637   -1.011683  2455334.907476
# Heliocentric elements and errors
Epoch:              2455330.5000  =  2010/05/14
Mean Anomaly:          309.56948 +/-     0.002
Argument of Peri:       81.30813 +/-     0.003
Long of Asc Node:      241.15193 +/-     0.000
Inclination:            17.87160 +/-     0.000
Eccentricity:         0.31666970 +/-    0.0000
Semi-Major Axis:     22.94400285 +/-    0.0006
Time of Perihelion: 2460953.8252 +/-       0.1
Perihelion:          15.67833227 +/-    0.0005
Aphelion:            30.20967342 +/-    0.0008
Period (y)              109.9036 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -10.84077229 +/-    0.0001
Ecliptic Y          -16.94124858 +/-    0.0001
Ecliptic Z           -0.42610798 +/-    0.0000
Ecliptic XDOT         0.00374551 +/-    0.0000
Ecliptic YDOT        -0.00100845 +/-    0.0000
Ecliptic ZDOT         0.00121473 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   20.11740080 +/-    0.0001
Geocenter to KBO     19.10610213 +/-    0.0001
# Hcoef:  8.52

The following table shows the complete astrometric record for 10LO33. 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 (10LO33) followed by the observatory code and reference code for the source of the astrometry.

2010 05  18.40671  15 39 12.659  -20 49 19.36  21.6G 10LO33    F51  C~2jgo      
2010 05  18.41762  15 39 12.543  -20 49 18.85  21.3G 10LO33    F51  C~2jgo      
2010 05  20.30549  15 38 54.09   -20 47 53.3   21.6V 10LO33    G96  C~0Inp      
2010 05  20.31369  15 38 54.02   -20 47 52.9   21.4V 10LO33    G96  C~0Inp      
2010 05  20.32204  15 38 53.95   -20 47 52.1   21.2V 10LO33    G96  C~0Inp      
2010 05  20.33044  15 38 53.84   -20 47 52.2   21.1V 10LO33    G96  C~0Inp      
2010 06  07.96905  15 35 57.993  -20 33 43.56  19.9R 10LO33    809  C~0ITr      
2010 06  08.05913  15 35 57.187  -20 33 39.99  19.8R 10LO33    809  C~0ITr      
2010 06  08.14352  15 35 56.422  -20 33 35.53  20.2R 10LO33    809  C~0ITr      
2010 06  09.04337  15 35 48.486  -20 32 56.29  20.5R 10LO33    809  C~0ITr      
2010 06  12.21961  15 35 20.820  -20 30 35.88        10LO33    807  C~0Inp      
2010 06  12.27337  15 35 20.345  -20 30 33.04        10LO33    807  C~0Inp      
2010 07  08.12236  15 32 21.247  -20 13 43.80  21.8R 10LO33    807  C~0KZp      
2010 07  08.96620  15 32 17.113  -20 13 15.93  21.2R 10LO33    807  C~0KZp      
2010 07  09.06543  15 32 16.623  -20 13 12.70  21.6R 10LO33    807  C~0KZp      
2010 08  26.01457  15 32 01.89   -19 59 46.9         10LO33    807  C~0MvU      
2010 08  27.01228  15 32 06.42   -19 59 47.4         10LO33    807  C~0MvU      
2010 08  28.00105  15 32 11.09   -19 59 48.8         10LO33    807  C~0MvU      
2011 05  29.41377  15 55 56.853  -20 17 09.83  21.5G 10LO33    F51  C~2jgo      
2011 06  06.38695  15 54 39.228  -20 11 30.76  21.6w 10LO33    F51  C~1vWE      
2011 06  06.40147  15 54 39.059  -20 11 29.97  21.3w 10LO33    F51  C~1vWE      
2011 06  06.41590  15 54 38.930  -20 11 29.35  21.6w 10LO33    F51  C~1vWE      
2011 06  06.43034  15 54 38.790  -20 11 28.80  21.4w 10LO33    F51  C~1vWE      
2012 02  24.64606  16 23 07.102  -20 29 23.09  21.5G 10LO33    F51  C~2jgo      
2012 02  24.65689  16 23 07.111  -20 29 23.07  20.9G 10LO33    F51  C~2jgo      
2012 05  15.42800  16 17 24.130  -19 53 02.32  20.8G 10LO33    F51  C~2jgo      
2012 08  17.25726  16 07 12.985  -19 08 55.68  22.0G 10LO33    F51  C~2jgo      
2013 05  16.48109  16 37 15.819  -19 09 11.96  21.1G 10LO33    F51  C~2jgo      
2013 05  16.48240  16 37 15.804  -19 09 11.87  20.9G 10LO33    F51  C~2jgo      
2013 06  07.41610  16 33 31.331  -18 55 48.67  21.2G 10LO33    F51  C~2jgo      
2013 06  07.43001  16 33 31.184  -18 55 48.26  20.9G 10LO33    F51  C~2jgo      
2013 06  07.44658  16 33 31.012  -18 55 47.64  20.9G 10LO33    F51  C~2jgo      
2013 06  07.46067  16 33 30.861  -18 55 47.20  21.2G 10LO33    F51  C~2jgo      
2013 06  28.37832  16 30 08.846  -18 44 28.26  21.4G 10LO33    F51  C~2jgo      
2013 06  28.38012  16 30 08.841  -18 44 27.95  21.5G 10LO33    F51  C~2jgo      
2013 07  01.31956  16 29 43.613  -18 43 04.49  21.0G 10LO33    F51  C~2jgo      
2013 07  01.33293  16 29 43.497  -18 43 04.20  21.0G 10LO33    F51  C~2jgo      
2013 07  01.34628  16 29 43.366  -18 43 03.96  20.7G 10LO33    F51  C~2jgo      
2013 07  01.35961  16 29 43.262  -18 43 03.69  21.1G 10LO33    F51  C~2jgo      
2014 04  03.57463  17 02 43.411  -18 39 54.28  21.5w 10LO33    F51  C~1vWE      
2014 04  03.58696  17 02 43.370  -18 39 53.96  21.6w 10LO33    F51  C~1vWE      
2014 04  03.59932  17 02 43.324  -18 39 53.52  21.4w 10LO33    F51  C~1vWE      
2014 04  03.61167  17 02 43.303  -18 39 52.98  21.4w 10LO33    F51  C~1vWE      
2014 04  08.61277  17 02 27.471  -18 37 15.91  20.9G 10LO33    F51  C~2jgo      
2014 04  08.62517  17 02 27.409  -18 37 15.47  21.4G 10LO33    F51  C~2jgo      
2014 05  03.47418  16 59 57.237  -18 23 09.96  21.5G 10LO33    F51  C~2jgo      
2014 05  21.44494  16 57 12.552  -18 12 36.85  21.2w 10LO33    F51  C~1vWE      
2014 05  21.45803  16 57 12.425  -18 12 36.40  21.1w 10LO33    F51  C~1vWE      
2014 05  21.47113  16 57 12.286  -18 12 35.99  21.1w 10LO33    F51  C~1vWE      
2014 05  21.48419  16 57 12.148  -18 12 35.41  21.1w 10LO33    F51  C~1vWE      
2014 05  28.43477  16 56 01.160  -18 08 36.97  21.1w 10LO33    F51  C~1vWE      
2014 05  28.44538  16 56 01.046  -18 08 36.52  21.1w 10LO33    F51  C~1vWE      
2014 05  28.45600  16 56 00.930  -18 08 36.23  21.2w 10LO33    F51  C~1vWE      
2014 05  28.46662  16 56 00.824  -18 08 35.85  21.2w 10LO33    F51  C~1vWE      
2014 05  30.51205  16 55 39.482  -18 07 27.12  21.0G 10LO33    F51  C~2jgo      
2014 06  18.40008  16 52 22.032  -17 57 35.47  20.6i 10LO33    F51  C~1vWE      
2014 06  18.41266  16 52 21.894  -17 57 35.10  20.4i 10LO33    F51  C~1vWE      
2014 06  18.42523  16 52 21.777  -17 57 34.49  20.8i 10LO33    F51  C~1vWE      
2014 06  26.33742  16 51 03.161  -17 53 58.01  21.2w 10LO33    F51  C~1vWE      
2014 06  26.34804  16 51 03.042  -17 53 57.68  21.6w 10LO33    F51  C~1vWE      
2014 06  26.35866  16 51 02.951  -17 53 57.65  21.4w 10LO33    F51  C~1vWE      
2014 06  26.36931  16 51 02.856  -17 53 57.18  21.4w 10LO33    F51  C~1vWE      
2014 06  28.33677  16 50 44.081  -17 53 07.06  21.1w 10LO33    F51  C~1vWE      
2014 06  28.34734  16 50 43.980  -17 53 06.80  21.2w 10LO33    F51  C~1vWE      
2014 06  28.35794  16 50 43.884  -17 53 06.58  21.1w 10LO33    F51  C~1vWE      
2014 06  28.36852  16 50 43.780  -17 53 06.26  21.3w 10LO33    F51  C~1vWE      
2014 07  25.31504  16 47 16.009  -17 44 26.88  21.4w 10LO33    F51  C~1vWE      
2014 07  25.32573  16 47 15.953  -17 44 26.70  21.4w 10LO33    F51  C~1vWE      
2014 07  25.33635  16 47 15.888  -17 44 26.57  21.3w 10LO33    F51  C~1vWE      
2014 07  25.34701  16 47 15.835  -17 44 26.35  21.3w 10LO33    F51  C~1vWE      
2014 07  31.28170  16 46 45.985  -17 43 18.73        10LO33    F51  C~2jgo      
2014 07  31.29293  16 46 45.928  -17 43 18.59        10LO33    F51  C~2jgo      
2014 08  22.25908  16 45 58.012  -17 41 40.86  21.5w 10LO33    F51  C~1vWE      
2014 08  22.27075  16 45 58.017  -17 41 40.83  21.5w 10LO33    F51  C~1vWE      
2014 08  22.28240  16 45 58.016  -17 41 40.73  21.6w 10LO33    F51  C~1vWE      
2014 08  22.29411  16 45 58.014  -17 41 40.77  21.6w 10LO33    F51  C~1vWE      

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     0.08       0.00     0.07
  2   0.0000     -1.70    -0.02       0.12     0.07
  3   0.0052   -273.17    -0.25      23.99    -0.21
  4   0.0052   -274.21    -0.10      24.15    -0.15
  5   0.0052   -275.35    -0.02      24.71     0.30
  6   0.0053   -276.83    -0.27      24.26    -0.26
  7   0.0563  -2874.32 (   0.89)    277.22 (   0.17)
  8   0.0565  -2886.17 (   1.09)    278.04 (  -0.19)
  9   0.0568  -2897.66 (   0.93)    279.86 (   0.50)
 10   0.0592  -3015.24 (   1.38)    291.89 (  -0.24)
 11   0.0679  -3426.07     0.40     337.14    -0.05
 12   0.0681  -3433.23     0.17     338.33     0.36
 13   0.1389  -6120.78    -0.32     721.20    -0.17
 14   0.1412  -6184.01    -0.04     734.32     0.02
 15   0.1414  -6191.48     0.10     735.81     0.06
 16   0.2727  -6586.63     0.05    1468.74     0.39
 17   0.2754  -6524.46    -0.04    1483.57     0.33
 18   0.2782  -6460.15    -0.24    1498.00     0.03
 19   1.0295  13371.20     0.08    4948.72    -0.05
 20   1.0513  12227.73     0.37    5055.70    -0.10
 21   1.0513  12225.23    -0.05    5055.99    -0.01
 22   1.0514  12223.32     0.11    5056.22     0.04
 23   1.0514  12221.27     0.13    5056.35    -0.02
 24   1.7720  36407.71    -0.01    8515.13    -0.16
 25   1.7721  36407.84    -0.42    8515.18    -0.30
 26   1.9932  31144.02     0.23    9857.02     0.04
 27   2.2501  22009.59    -0.09   10882.79    -0.04
 28   2.9954  48030.68     0.03   15331.84     0.00
 29   2.9954  48030.44    -0.01   15331.90     0.04
 30   3.0555  44593.13     0.08   15640.88     0.05
 31   3.0555  44590.90     0.07   15640.96    -0.03
 32   3.0556  44588.27     0.09   15641.19     0.00
 33   3.0556  44585.98     0.05   15641.29    -0.06
 34   3.1129  41513.41    -0.03   15857.34    -0.17
 35   3.1129  41513.29     0.09   15857.64     0.12
 36   3.1209  41130.69     0.08   15882.15    -0.14
 37   3.1209  41128.95     0.08   15882.17    -0.22
 38   3.1210  41126.99    -0.13   15882.10    -0.40
 39   3.1210  41125.43     0.04   15882.13    -0.47
 40   3.8773  71245.19     0.02   20281.96     0.02
 41   3.8773  71244.51    -0.07   20282.22    -0.05
 42   3.8773  71243.73    -0.25   20282.60    -0.01
 43   3.8774  71243.34    -0.05   20283.13     0.19
 44   3.8911  70975.38     0.28   20419.88    -0.08
 45   3.8911  70974.35     0.06   20420.23    -0.06
 46   3.9591  68504.82    -0.16   21027.52     0.09
 47   4.0083  65841.60    -0.02   21369.97     0.03
 48   4.0084  65839.55     0.08   21370.19     0.04
 49   4.0084  65837.33     0.00   21370.34    -0.01
 50   4.0084  65835.10    -0.08   21370.67     0.11
 51   4.0275  64695.59     0.10   21478.30    -0.00
 52   4.0275  64693.75     0.07   21478.55     0.09
 53   4.0275  64691.90     0.02   21478.62     0.01
 54   4.0275  64690.20     0.12   21478.80     0.05
 55   4.0331  64348.51    -0.04   21507.64    -0.11
 56   4.0849  61204.37    -0.02   21719.34    -0.15
 57   4.0849  61202.19    -0.14   21719.44    -0.16
 58   4.0849  61200.30     0.05   21719.83     0.13
 59   4.1066  59956.67    -0.01   21779.91     0.17
 60   4.1066  59954.79    -0.24   21780.00     0.20
 61   4.1066  59953.38    -0.00   21779.84    -0.03
 62   4.1067  59951.86     0.13   21780.13     0.20
 63   4.1121  59655.55     0.01   21792.48     0.04
 64   4.1121  59653.95     0.03   21792.53     0.03
 65   4.1121  59652.44     0.13   21792.56     0.00
 66   4.1121  59650.80     0.09   21792.67     0.05
 67   4.1859  56388.69    -0.07   21883.99    -0.01
 68   4.1860  56387.80     0.01   21884.05     0.05
 69   4.1860  56386.79    -0.04   21884.04     0.03
 70   4.1860  56385.95     0.08   21884.16     0.13
 71   4.2023  55920.05    -0.04   21888.74    -0.06
 72   4.2023  55919.16    -0.11   21888.76    -0.04
 73   4.2624  55173.66    -0.10   21884.27    -0.03
 74   4.2625  55173.74    -0.03   21884.31     0.02
 75   4.2625  55173.71    -0.06   21884.41     0.13
 76   4.2625  55173.68    -0.09   21884.37     0.09

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.

10LO33    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        22.817    22.818    22.815
ecceobj         0.316     0.316     0.316
incobj         17.904    17.904    17.904
qmin           15.554    15.510    15.553
qmax           30.694    30.436    30.796
amean          23.034    22.884    23.034
amin           22.811    22.563    22.814
amax           23.560    23.519    23.489
emean           0.310     0.305     0.311
emin            0.300     0.271     0.299
emax            0.320     0.320     0.320
imean          18.975    19.046    18.884
imin           18.771    18.564    18.718
imax           19.306    20.057    19.039
excite_mean     0.450     0.447     0.449
fracstop        0.002     0.011     0.002
cjmean          2.884     2.891     2.885

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        90.3     122.3      92.0
kozaiamp          9.2      40.7      10.3