Orbit Fit and Astrometric record for 07JF45

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: 07JF45    
# Created Fri Dec 15 02:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   74 observations of   75
# Arc:   8.17y
# First observation: 2007/05/12
#  Last observation: 2015/07/13
Preliminary a, adot, b, bdot, g, gdot:
   0.000243   0.026818  -0.000027   0.002291   0.027960   0.000000
# Chi-squared of fit:    23.87 DOF:  142 RMS:  0.10
# Min/Max residuals:    -0.30    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.596700E-05  2.701670E-02  1.869222E-06  2.290805E-03  2.661391E-02  2.419137E-03
# Covariance matrix:
  4.8258E-13 -1.4653E-13  1.0430E-14 -8.2926E-15 -8.0843E-14 -4.0325E-13
 -1.4653E-13  9.1968E-14 -9.1292E-15  7.3286E-15  8.8044E-14  3.5146E-13
  1.0430E-14 -9.1292E-15  3.6878E-13 -5.0929E-14 -9.3137E-15 -3.7895E-14
 -8.2926E-15  7.3286E-15 -5.0929E-14  7.8629E-15  7.7795E-15  3.0366E-14
 -8.0843E-14  8.8044E-14 -9.3137E-15  7.7795E-15  1.6413E-13  3.5217E-13
 -4.0325E-13  3.5146E-13 -3.7895E-14  3.0366E-14  3.5217E-13  1.4600E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   10.132148 -120.103547    0.156365    0.174806   -0.977864  2454232.740174
# Heliocentric elements and errors
Epoch:              2454230.5000  =  2007/05/10
Mean Anomaly:           67.64048 +/-     0.017
Argument of Peri:      346.51437 +/-     0.024
Long of Asc Node:      176.21537 +/-     0.001
Inclination:            11.00826 +/-     0.000
Eccentricity:         0.08818076 +/-    0.0000
Semi-Major Axis:     39.60983591 +/-    0.0018
Time of Perihelion: 2437122.1872 +/-       4.3
Perihelion:          36.11701060 +/-    0.0023
Aphelion:            43.10266122 +/-    0.0025
Period (y)              249.2945 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.18663937 +/-    0.0003
Ecliptic Y          -32.78517484 +/-    0.0005
Ecliptic Z            6.61015081 +/-    0.0001
Ecliptic XDOT         0.00230830 +/-    0.0000
Ecliptic YDOT        -0.00157295 +/-    0.0000
Ecliptic ZDOT         0.00027568 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.55760513 +/-    0.0004
Geocenter to KBO     37.57433487 +/-    0.0006
# Hcoef:  5.80

The following table shows the complete astrometric record for 07JF45. 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 (07JF45) followed by the observatory code and reference code for the source of the astrometry.

2007 05  12.23942  15 59 33.06   -10 12 56.8   21.3R 07JF45    675  Cz4327      
2007 05  12.38010  15 59 32.33   -10 12 53.3   21.6R 07JF45    675  Cz4327      
2007 05  13.23190  15 59 28.06   -10 12 37.5   21.5R 07JF45    675  Cz4327      
2007 05  13.31953  15 59 27.58   -10 12 35.5   21.4R 07JF45    675  Cz4327      
2012 06  13.34599  16 27 50.579  -10 54 50.44  21.4w 07JF45    F51  C~1vVj      
2012 06  13.36071  16 27 50.506  -10 54 50.35  21.7w 07JF45    F51  C~1vVj      
2012 06  13.37545  16 27 50.429  -10 54 50.27  21.6w 07JF45    F51  C~1vVj      
2012 06  13.39026  16 27 50.348  -10 54 50.17  21.8w 07JF45    F51  C~1vVj      
2013 05  15.50433  16 36 27.099  -11 09 14.52  21.6w 07JF45    F51  C~1vVj      
2013 05  15.51761  16 36 27.032  -11 09 14.12  21.6w 07JF45    F51  C~1vVj      
2013 05  15.53086  16 36 26.972  -11 09 14.04  21.9w 07JF45    F51  C~1vVj      
2013 05  15.54414  16 36 26.892  -11 09 13.79  21.8w 07JF45    F51  C~1vVj      
2013 06  09.37188  16 34 20.076  -11 03 55.54  21.6w 07JF45    F51  C~1vVj      
2013 06  09.38581  16 34 20.006  -11 03 55.49  21.7w 07JF45    F51  C~1vVj      
2013 06  09.39974  16 34 19.932  -11 03 55.32  21.6w 07JF45    F51  C~1vVj      
2013 07  02.33047  16 32 30.750  -11 01 53.04  21.6w 07JF45    F51  C~1vVj      
2013 07  02.34372  16 32 30.692  -11 01 53.01  21.6w 07JF45    F51  C~1vVj      
2013 07  02.35698  16 32 30.633  -11 01 52.95  21.8w 07JF45    F51  C~1vVj      
2013 07  02.37022  16 32 30.584  -11 01 53.02  21.6w 07JF45    F51  C~1vVj      
2014 05  07.50040  16 43 12.804  -11 19 17.06  21.6w 07JF45    F51  C~1vVj      
2014 05  07.51306  16 43 12.742  -11 19 16.80  21.6w 07JF45    F51  C~1vVj      
2014 05  07.52573  16 43 12.680  -11 19 16.67  21.8w 07JF45    F51  C~1vVj      
2014 05  07.53840  16 43 12.630  -11 19 16.37  21.6w 07JF45    F51  C~1vVj      
2014 05  23.41869  16 41 55.650  -11 15 09.79  21.8w 07JF45    F51  C~1vVj      
2014 05  23.43157  16 41 55.583  -11 15 09.62  21.7w 07JF45    F51  C~1vVj      
2014 05  23.44442  16 41 55.515  -11 15 09.47  21.7w 07JF45    F51  C~1vVj      
2014 05  23.45732  16 41 55.448  -11 15 09.39  21.6w 07JF45    F51  C~1vVj      
2014 06  08.37981  16 40 33.521  -11 12 05.29  21.1i 07JF45    F51  C~1vVj      
2014 06  08.39266  16 40 33.427  -11 12 04.95  21.0i 07JF45    F51  C~1vVj      
2014 06  08.41857  16 40 33.301  -11 12 05.04  21.0i 07JF45    F51  C~1vVj      
2014 07  04.33470  16 38 29.107  -11 09 57.00  21.3i 07JF45    F51  C~1vVj      
2014 07  04.34765  16 38 29.045  -11 09 57.09  21.3i 07JF45    F51  C~1vVj      
2014 07  04.36057  16 38 28.997  -11 09 56.97  21.3i 07JF45    F51  C~1vVj      
2014 07  04.37351  16 38 28.937  -11 09 56.98  21.1i 07JF45    F51  C~1vVj      
2014 07  26.31813  16 37 11.352  -11 11 12.52  21.8w 07JF45    F51  C~1vVj      
2014 07  26.33002  16 37 11.322  -11 11 12.58  21.8w 07JF45    F51  C~1vVj      
2014 07  26.34188  16 37 11.286  -11 11 12.62  21.8w 07JF45    F51  C~1vVj      
2014 07  26.35375  16 37 11.250  -11 11 12.75  21.9w 07JF45    F51  C~1vVj      
2014 08  14.26425  16 36 35.943  -11 14 28.23  21.7w 07JF45    F51  C~1vVj      
2014 08  14.27653  16 36 35.939  -11 14 28.34  21.8w 07JF45    F51  C~1vVj      
2014 08  14.28883  16 36 35.930  -11 14 28.51  21.7w 07JF45    F51  C~1vVj      
2014 08  14.30120  16 36 35.924  -11 14 28.66  21.8w 07JF45    F51  C~1vVj      
2014 08  15.26514  16 36 35.016  -11 14 41.65  21.7w 07JF45    F51  C~1vVj      
2014 08  15.27748  16 36 35.010  -11 14 41.79  21.7w 07JF45    F51  C~1vVj      
2014 08  15.28989  16 36 34.994  -11 14 42.04  21.8w 07JF45    F51  C~1vVj      
2014 08  15.30229  16 36 34.984  -11 14 42.08  21.8w 07JF45    F51  C~1vVj      
2015 03  30.58821  16 51 18.832  -11 38 18.20  21.9w 07JF45    F51  C~1vVj      
2015 03  30.60083  16 51 18.811  -11 38 18.02  21.7w 07JF45    F51  C~1vVj      
2015 03  30.61345  16 51 18.783  -11 38 17.80  21.7w 07JF45    F51  C~1vVj      
2015 03  30.62609  16 51 18.762  -11 38 17.62  21.8w 07JF45    F51  C~1vVj      
2015 04  24.59018  16 50 11.907  -11 30 23.16  21.8w 07JF45    F51  C~1vVj      
2015 04  24.60326  16 50 11.856  -11 30 22.96  22.0w 07JF45    F51  C~1vVj      
2015 04  24.61628  16 50 11.809  -11 30 22.77  22.1w 07JF45    F51  C~1vVj      
2015 05  21.48896  16 48 12.516  -11 23 01.55  22.0w 07JF45    F51  C~1vVj      
2015 05  21.50132  16 48 12.460  -11 23 01.24  21.8w 07JF45    F51  C~1vVj      
2015 05  21.51367  16 48 12.398  -11 23 00.99  21.8w 07JF45    F51  C~1vVj      
2015 05  22.49053  16 48 07.499  -11 22 47.72  21.8w 07JF45    F51  C~1vVj      
2015 05  22.50312  16 48 07.432  -11 22 47.58  21.7w 07JF45    F51  C~1vVj      
2015 05  22.51565  16 48 07.363  -11 22 47.42  21.8w 07JF45    F51  C~1vVj      
2015 05  22.52821  16 48 07.308  -11 22 47.50  21.6w 07JF45    F51  C~1vVj      
2015 06  13.44470  16 46 14.982  -11 18 55.03  21.5w 07JF45    F51  C~1vVj      
2015 06  13.45737  16 46 14.916  -11 18 55.00  21.6w 07JF45    F51  C~1vVj      
2015 06  13.47014  16 46 14.851  -11 18 54.86  21.6w 07JF45    F51  C~1vVj      
2015 06  15.35107  16 46 05.322  -11 18 41.62  21.6w 07JF45    F51  C~1vVj      
2015 06  15.36360  16 46 05.250  -11 18 41.60  21.5w 07JF45    F51  C~1vVj      
2015 06  15.37609  16 46 05.192  -11 18 41.50  21.6w 07JF45    F51  C~1vVj      
2015 06  15.38863  16 46 05.133  -11 18 41.45  21.7w 07JF45    F51  C~1vVj      
2015 06  23.40902  16 45 25.430  -11 17 57.89  21.8w 07JF45    F51  C~1vVj      
2015 06  23.42093  16 45 25.380  -11 17 57.81  21.8w 07JF45    F51  C~1vVj      
2015 06  23.43290  16 45 25.316  -11 17 57.88  21.9w 07JF45    F51  C~1vVj      
2015 06  23.44478  16 45 25.260  -11 17 57.78  21.6w 07JF45    F51  C~1vVj      
2015 07  13.34499  16 43 58.261  -11 17 44.98  21.9w 07JF45    F51  C~1vVj      
2015 07  13.35722  16 43 58.221  -11 17 45.25  22.0w 07JF45    F51  C~1vVj      
2015 07  13.36945  16 43 58.164  -11 17 45.28  22.3w 07JF45    F51  C~1vVj      
2015 07  13.38169  16 43 58.115  -11 17 45.26  21.6w 07JF45    F51  C~1vVj      

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     0.02       0.00    -0.10
  2   0.0004    -11.26 (  -0.27)      1.24 (   0.61)
  3   0.0027    -76.19     0.26       3.93    -0.06
  4   0.0030    -83.54    -0.23       4.45     0.16
  5   5.0900  25172.90    -0.04    2344.05     0.10
  6   5.0900  25171.81    -0.01    2343.95     0.07
  7   5.0900  25170.67    -0.03    2343.82     0.02
  8   5.0901  25169.46    -0.11    2343.70    -0.01
  9   6.0103  32963.93    -0.00    2850.90    -0.11
 10   6.0103  32962.86    -0.04    2851.12     0.08
 11   6.0104  32961.96     0.08    2851.05    -0.04
 12   6.0104  32960.72    -0.13    2851.09    -0.04
 13   6.0784  31021.48    -0.06    2837.03     0.08
 14   6.0784  31020.43    -0.01    2836.90     0.01
 15   6.0785  31019.31    -0.04    2836.87     0.05
 16   6.1412  29380.79    -0.14    2671.17    -0.03
 17   6.1413  29379.93    -0.14    2671.04    -0.01
 18   6.1413  29379.05    -0.16    2670.95     0.03
 19   6.1414  29378.33    -0.02    2670.75    -0.04
 20   6.9877  39132.54     0.08    3289.27    -0.03
 21   6.9877  39131.56     0.02    3289.37     0.01
 22   6.9878  39130.61    -0.01    3289.35    -0.09
 23   6.9878  39129.80     0.10    3289.52     0.02
 24   7.0313  37931.62     0.07    3341.27     0.13
 25   7.0313  37930.59     0.07    3341.27     0.12
 26   7.0314  37929.54     0.05    3341.25     0.09
 27   7.0314  37928.53     0.06    3341.16    -0.01
 28   7.0750  36669.31     0.18    3316.26     0.04
 29   7.0750  36667.85    -0.26    3316.35     0.20
 30   7.0751  36665.98    -0.06    3315.94    -0.11
 31   7.1461  34788.27     0.04    3124.59     0.00
 32   7.1461  34787.36    -0.02    3124.34    -0.11
 33   7.1461  34786.62     0.08    3124.33     0.03
 34   7.1462  34785.73     0.02    3124.17     0.00
 35   7.2062  33643.06     0.05    2848.05    -0.04
 36   7.2063  33642.62     0.09    2847.91    -0.01
 37   7.2063  33642.09     0.04    2847.78     0.03
 38   7.2063  33641.58     0.01    2847.56    -0.02
 39   7.2581  33150.84    -0.03    2560.96    -0.16
 40   7.2581  33150.80     0.10    2560.84    -0.08
 41   7.2582  33150.70     0.16    2560.65    -0.08
 42   7.2582  33150.63     0.27    2560.48    -0.05
 43   7.2609  33139.43     0.09    2545.17    -0.19
 44   7.2609  33139.36     0.17    2545.01    -0.15
 45   7.2609  33139.17     0.13    2544.72    -0.24
 46   7.2610  33139.03     0.14    2544.66    -0.11
 47   7.8832  46682.25     0.07    3349.00     0.11
 48   7.8833  46681.90     0.08    3349.13     0.05
 49   7.8833  46681.43    -0.03    3349.29     0.01
 50   7.8833  46681.08    -0.02    3349.42    -0.05
 51   7.9517  45583.18     0.02    3665.21     0.09
 52   7.9517  45582.37     0.00    3665.29     0.04
 53   7.9518  45581.63     0.04    3665.37    -0.01
 54   8.0253  43695.01     0.02    3815.59    -0.11
 55   8.0254  43694.11     0.10    3815.76     0.04
 56   8.0254  43693.12     0.10    3815.86     0.12
 57   8.0281  43616.59    -0.04    3817.06    -0.00
 58   8.0281  43615.55    -0.07    3817.03    -0.04
 59   8.0281  43614.48    -0.15    3817.02    -0.07
 60   8.0282  43613.66     0.03    3816.80    -0.30
 61   8.0882  41873.98    -0.06    3770.46     0.07
 62   8.0882  41872.98    -0.05    3770.32    -0.00
 63   8.0882  41871.97    -0.05    3770.30     0.05
 64   8.0934  41725.74    -0.05    3759.72     0.04
 65   8.0934  41724.65    -0.16    3759.56    -0.04
 66   8.0935  41723.76    -0.07    3759.52    -0.01
 67   8.0935  41722.86     0.02    3759.42    -0.03
 68   8.1155  41116.01    -0.04    3703.51     0.16
 69   8.1155  41115.25     0.09    3703.46     0.22
 70   8.1155  41114.29     0.03    3703.23     0.08
 71   8.1156  41113.43     0.06    3703.19     0.14
 72   8.1700  39800.29    -0.21    3496.70     0.16
 73   8.1701  39799.74    -0.05    3496.33    -0.05
 74   8.1701  39798.88    -0.19    3496.16    -0.07
 75   8.1701  39798.14    -0.22    3496.05    -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.

07JF45    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.129    39.134    39.124
ecceobj         0.084     0.084     0.084
incobj         11.033    11.033    11.033
qmin           35.080    35.063    35.014
qmax           44.349    44.332    44.374
amean          39.460    39.460    39.460
amin           39.045    39.052    39.052
amax           39.907    39.889    39.904
emean           0.090     0.090     0.091
emin            0.069     0.069     0.070
emax            0.112     0.112     0.113
imean          11.287    11.276    11.290
imin           10.388    10.394    10.389
imax           12.083    12.062    12.072
excite_mean     0.216     0.215     0.216
fracstop        1.000     1.000     1.000
cjmean          2.998     2.999     2.998

libcent 0       179.4     178.1     179.6
libamp  0        90.5      91.1      93.6
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       181.4     181.8     179.9
kozaiamp        180.0     180.0     180.0