Orbit Fit and Astrometric record for 612084

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: 612084    
# Created Fri Mar 29 01:09:17 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     59 observations of     59
# Arc:  24.10y
# First observation: 1999/02/11
#  Last observation: 2023/03/18
# Chi-squared of fit:   177.40 DOF:    112 RMS:  0.31
# Min/Max residuals:    -0.75    0.92
# Exact a, adot, b, bdot, g, gdot:
  1.804593E-05  2.989379E-02 -3.408521E-06 -1.071896E-02  2.579861E-02 -4.553673E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.489564  121.604216   -0.352642    0.007717   -0.928743  2451220.779063
# Heliocentric elements and errors
Epoch:              2451220.5000  =  1999/02/11
Mean Anomaly:          355.02359 +/-     0.000
Argument of Peri:      199.66367 +/-     0.000
Long of Asc Node:      303.43658 +/-     0.000
Inclination:            19.73441 +/-     0.000
Eccentricity:         0.56165283 +/-    0.0000
Semi-Major Axis:     88.36055398 +/-    0.0000
Time of Perihelion: 2455414.2222 +/-       0.0
Perihelion:          38.73259903 +/-    0.0000
Aphelion:           137.98850892 +/-    0.0000
Period (y)              830.6075 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -21.09168269 +/-    0.0000
Ecliptic Y           33.61768416 +/-    0.0000
Ecliptic Z            0.33106124 +/-    0.0000
Ecliptic XDOT        -0.00245548 +/-    0.0000
Ecliptic YDOT        -0.00205679 +/-    0.0000
Ecliptic ZDOT        -0.00114163 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.68784804 +/-    0.0000
Geocenter to KBO     38.76191973 +/-    0.0000
# Hcoef:  7.15

The following table shows the complete astrometric record for 612084. 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 (612084) followed by the observatory code and reference code for the source of the astrometry.

1999 02  11.27832  08 15 51.18   +20 16 48.2   23.0R 612084    568  Ca4178      
1999 02  11.32043  08 15 50.97   +20 16 48.6   23.0R 612084    568  Ca4178      
1999 02  17.24042  08 15 22.32   +20 17 41.7   23.0R 612084    568  Ca4178      
1999 02  17.32277  08 15 21.91   +20 17 42.5   23.0R 612084    568  Ca4178      
1999 04  08.26531  08 13 02.23   +20 19 32.0   23.1R 612084    568  Ca4843      
1999 04  09.25789  08 13 01.82   +20 19 26.8   23.1R 612084    568  Ca4843      
1999 05  06.25461  08 13 30.58   +20 14 56.8   23.3R 612084    568  Ca4843      
1999 05  06.30545  08 13 30.72   +20 14 56.3   23.3R 612084    568  Ca4843      
1999 12  29.61447  08 26 09.36   +19 09 03.1         612084    568  Ca8502      
1999 12  29.63415  08 26 09.26   +19 09 03.4         612084    568  Ca8502      
1999 12  30.60682  08 26 04.71   +19 09 13.3         612084    568  Ca8502      
1999 12  31.43598  08 26 00.70   +19 09 22.1   22.8R 612084    695  Ca8502      
1999 12  31.44434  08 26 00.72   +19 09 22.1   22.6R 612084    695  Ca8502      
1999 12  31.51453  08 26 00.38   +19 09 22.6         612084    695  Ca8502      
1999 12  31.52179  08 26 00.36   +19 09 22.7         612084    695  Ca8502      
2000 01  29.12666  08 23 32.24   +19 14 49.5         612084    705  Ca9922      
2000 01  29.15234  08 23 32.16   +19 14 49.5         612084    705  Ca9922      
2000 01  29.18577  08 23 31.95   +19 14 50.2   22.9R 612084    705  Ca9922      
2000 01  30.14579  08 23 26.84   +19 15 01.1         612084    705  Ca9922      
2000 01  30.17000  08 23 26.70   +19 15 01.5         612084    705  Ca9922      
2000 01  30.20438  08 23 26.51   +19 15 02.2         612084    705  Ca9922      
2001 01  26.30391  08 30 13.81   +18 13 19.6   22.5R 612084    695  Cc6423      
2001 01  26.37647  08 30 13.41   +18 13 20.4         612084    695  Cc6423      
2002 04  10.30291  08 32 13.83   +17 21 11.6         612084    568  Ch3072      
2002 04  10.34891  08 32 13.80   +17 21 11.5         612084    568  Ch3072      
2002 04  11.25257  08 32 13.22   +17 21 09.7         612084    568  Ch3072      
2002 04  11.26285  08 32 13.21   +17 21 09.9         612084    568  Ch3072      
2005 03  10.226910 08 52 33.32   +14 07 38.5         612084    645  C~1cF1      
2005 03  10.227743 08 52 33.31   +14 07 38.5         612084    645  C~1cF1      
2005 03  10.230231 08 52 33.30   +14 07 38.5         612084    645  C~1cF1      
2005 12  06.439912 09 05 43.85   +12 44 03.1   22.3V 612084    645  C~1cF2      
2005 12  06.440741 09 05 43.85   +12 44 03.0   22.4V 612084    645  C~1cF2      
2005 12  06.443229 09 05 43.84   +12 44 03.0   23.4V 612084    645  C~1cF2      
2006 01  31.343332 09 01 55.60   +12 51 35.9         612084    645  C~1cF2      
2006 01  31.344161 09 01 55.60   +12 51 35.9         612084    645  C~1cF2      
2006 01  31.346649 09 01 55.58   +12 51 36.0         612084    645  C~1cF2      
2013 03  12.13729  09 42 07.43   +05 03 05.6   22.0R 612084    695  C~0uco      
2013 03  12.19997  09 42 07.16   +05 03 07.0         612084    695  C~0uco      
2013 03  13.13373  09 42 03.17   +05 03 27.7         612084    695  C~0uco      
2015 02  01.24277  09 57 25.15   +02 29 45.6         612084    W84  C~2KVJ      
2015 02  01.31738  09 57 24.78   +02 29 46.6   23.2r 612084    W84  C~2KVJ      
2015 02  01.32060  09 57 24.76   +02 29 46.6         612084    W84  C~2KVJ      
2015 04  17.035139 09 52 19.08   +02 56 20.1         612084    W84  C~3i8v      
2015 04  17.036574 09 52 19.08   +02 56 20.3         612084    W84  C~3i8v      
2016 01  14.317917 10 04 43.93   +01 16 59.7         612084    W84  C~3i8v      
2016 01  14.319063 10 04 43.92   +01 16 59.8         612084    W84  C~3i8v      
2016 12  29.300480 10 11 29.09   +00 08 00.0         612084    W84  C~3i8v      
2016 12  29.301765 10 11 29.09   +00 07 59.9         612084    W84  C~3i8v      
2017 02  02.38415  10 09 17.26   +00 10 42.7   23.1r 612084    T09  C~7uXI      
2017 02  02.50029  10 09 16.72   +00 10 44.4   23.0r 612084    T09  C~7uXI      
2017 02  02.51130  10 09 16.67   +00 10 44.6   22.8r 612084    T09  C~7uXI      
2017 02  02.52029  10 09 16.62   +00 10 44.6   23.0r 612084    T09  C~7uXI      
2017 02  02.53379  10 09 16.56   +00 10 44.9   22.9r 612084    T09  C~7uXI      
2017 03  29.23660  10 05 06.95   +00 31 08.9   23.8g 612084    T09  C~7wHo      
2017 03  29.24497  10 05 06.93   +00 31 08.9   23.7g 612084    T09  C~7wHo      
2017 03  29.35491  10 05 06.52   +00 31 11.6   23.6g 612084    T09  C~7wHo      
2023 03  18.257010 10 41 03.118  -06 21 08.03  22.6G 612084    G37  C~6bsf      
2023 03  18.298790 10 41 02.931  -06 21 06.00        612084    G37  C~6bsf      
2023 03  18.343750 10 41 02.716  -06 21 04.97        612084    G37  C~6bsf      

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    -0.10       0.00    -0.65
     2   0.0001      0.00    -0.05       0.00    -0.66
     3   0.0163      0.00     0.30       0.00    -0.75
     4   0.0165      0.00     0.05       0.00    -0.67
     5   0.1533      0.00     0.17       0.00    -0.15
     6   0.1560      0.00     0.01       0.00     0.05
     7   0.2299      0.00    -0.45       0.00    -0.02
     8   0.2301      0.00    -0.17       0.00     0.22
     9   0.8798      0.00     0.92       0.00    -0.61
    10   0.8798      0.00     0.81       0.00    -0.50
    11   0.8825      0.00     0.74       0.00    -0.17
    12   0.8848      0.00    -0.75       0.00     0.39
    13   0.8848      0.00     0.15       0.00     0.31
    14   0.8850      0.00     0.12       0.00     0.12
    15   0.8850      0.00     0.35       0.00     0.15
    16   0.9633      0.00    -0.65       0.00     0.37
    17   0.9634      0.00     0.22       0.00     0.06
    18   0.9635      0.00    -0.23       0.00     0.35
    19   0.9661      0.00    -0.30       0.00    -0.05
    20   0.9662      0.00    -0.45       0.00     0.06
    21   0.9663      0.00    -0.52       0.00     0.34
    22   1.9576      0.00     0.25       0.00     0.74
    23   1.9578      0.00     0.14       0.00     0.63
    24   3.1595      0.00     0.05       0.00     0.53
    25   3.1597      0.00     0.13       0.00     0.51
    26   3.1621      0.00     0.03       0.00     0.21
    27   3.1622      0.00    -0.02       0.00     0.43
    28   6.0752      0.00    -0.02       0.00     0.08
    29   6.0752      0.00    -0.12       0.00     0.07
    30   6.0752      0.00    -0.13       0.00     0.04
    31   6.8177      0.00    -0.28       0.00    -0.21
    32   6.8177      0.00    -0.26       0.00    -0.31
    33   6.8177      0.00    -0.32       0.00    -0.30
    34   6.9707      0.00    -0.14       0.00    -0.25
    35   6.9707      0.00    -0.08       0.00    -0.26
    36   6.9708      0.00    -0.18       0.00    -0.20
    37  14.0804      0.00     0.12       0.00     0.19
    38  14.0806      0.00     0.17       0.00     0.19
    39  14.0831      0.00    -0.01       0.00     0.11
    40  15.9725      0.00     0.29       0.00     0.12
    41  15.9727      0.00     0.13       0.00     0.02
    42  15.9727      0.00     0.06       0.00    -0.03
    43  16.1773      0.00     0.08       0.00    -0.07
    44  16.1773      0.00     0.12       0.00     0.11
    45  16.9228      0.00     0.18       0.00    -0.07
    46  16.9228      0.00     0.09       0.00     0.03
    47  17.8810      0.00    -0.05       0.00    -0.06
    48  17.8810      0.00    -0.00       0.00    -0.16
    49  17.9770      0.00    -0.17       0.00    -0.03
    50  17.9773      0.00    -0.01       0.00     0.00
    51  17.9774      0.00     0.02       0.00     0.04
    52  17.9774      0.00    -0.09       0.00    -0.09
    53  17.9774      0.00    -0.03       0.00     0.02
    54  18.1272      0.00    -0.04       0.00     0.04
    55  18.1272      0.00     0.12       0.00    -0.16
    56  18.1275      0.00     0.00       0.00    -0.19
    57  24.0958      0.00    -0.12       0.00    -0.45
    58  24.0959      0.00    -0.06       0.00     0.41
    59  24.0960      0.00    -0.21       0.00     0.19

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.

612084    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        89.009    89.009    89.010
ecceobj         0.565     0.565     0.565
incobj         19.710    19.710    19.710
qmin           37.096    37.074    37.067
qmax          144.249   144.069   143.958
amean          88.907    88.917    88.907
amin           87.541    87.534    87.535
amax           91.134    90.992    91.077
emean           0.568     0.568     0.568
emin            0.554     0.554     0.554
emax            0.583     0.583     0.583
imean          20.728    20.731    20.729
imin           19.979    19.991    19.984
imax           21.639    21.631    21.623
excite_mean     0.669     0.669     0.669
fracstop        1.000     1.000     1.000
cjmean          2.983     2.983     2.983

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       199.0     198.9     198.9
kozaiamp        180.0     180.0     180.0