Orbit Fit and Astrometric record for 14UJ229

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: 14UJ229   
# Created Mon Dec  6 02:12:48 2021
# Orbit generated from Bernstein formalism
# Fitting     26 observations of     26
# Arc:   3.10y
# First observation: 2014/07/26
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000138   0.025448   0.000027  -0.009549   0.025992   0.000000
# Chi-squared of fit:     5.74 DOF:     46 RMS:  0.08
# Min/Max residuals:    -0.14    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.494533E-05  2.490058E-02 -5.726682E-06 -9.368256E-03  2.569995E-02 -1.381984E-03
# Covariance matrix:
  1.8713E-13  2.2665E-14  1.6306E-16 -2.8163E-14  1.4605E-13  1.0758E-12
  2.2665E-14  6.0164E-13  3.9779E-14 -2.1575E-13  3.0606E-13  7.9795E-12
  1.6306E-16  3.9779E-14  8.5502E-14 -6.3572E-14  1.7697E-14  6.0885E-13
 -2.8163E-14 -2.1575E-13 -6.3572E-14  1.7002E-13 -1.2597E-13 -3.3045E-12
  1.4605E-13  3.0606E-13  1.7697E-14 -1.2597E-13  2.9531E-13  4.6965E-12
  1.0758E-12  7.9795E-12  6.0885E-13 -3.3045E-12  4.6965E-12  1.2222E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.625481   31.805146    1.017810    0.002260   -0.027028  2456865.046218
# Heliocentric elements and errors
Epoch:              2456860.5000  =  2014/07/22
Mean Anomaly:          311.78799 +/-     0.110
Argument of Peri:      224.33582 +/-     0.155
Long of Asc Node:      222.45016 +/-     0.000
Inclination:            21.01753 +/-     0.001
Eccentricity:         0.09846436 +/-    0.0004
Semi-Major Axis:     41.42252384 +/-    0.0035
Time of Perihelion: 2469901.3534 +/-      29.8
Perihelion:          37.34388163 +/-    0.0150
Aphelion:            45.50116606 +/-    0.0151
Period (y)              266.6018 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.51733580 +/-    0.0007
Ecliptic Y           19.59175780 +/-    0.0004
Ecliptic Z            3.13765995 +/-    0.0001
Ecliptic XDOT        -0.00145938 +/-    0.0000
Ecliptic YDOT         0.00221538 +/-    0.0000
Ecliptic ZDOT        -0.00100651 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.94988682 +/-    0.0006
Geocenter to KBO     38.91058750 +/-    0.0008
# Hcoef:  7.98

The following table shows the complete astrometric record for 14UJ229. 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 (14UJ229) followed by the observatory code and reference code for the source of the astrometry.

2014 07  26.54544  01 51 53.556  +16 26 10.07  23.8r 14UJ229   568  C~2SDj      
2014 07  26.58866  01 51 53.579  +16 26 10.33  23.9r 14UJ229   568  C~2SDj      
2014 08  24.48586  01 51 32.738  +16 25 08.04  24.2r 14UJ229   568  C~2SDj      
2014 08  24.55581  01 51 32.587  +16 25 07.29  23.7r 14UJ229   568  C~2SDj      
2014 08  30.46118  01 51 18.795  +16 23 57.80  23.9r 14UJ229   568  C~2SDj      
2014 08  30.56777  01 51 18.517  +16 23 56.35  24.0r 14UJ229   568  C~2SDj      
2014 09  18.48630  01 50 15.868  +16 18 12.45  23.9r 14UJ229   568  C~2SDj      
2014 09  18.52903  01 50 15.687  +16 18 11.46  23.8r 14UJ229   568  C~2SDj      
2014 09  23.52735  01 49 55.161  +16 16 12.49  23.8r 14UJ229   568  C~2SDj      
2014 10  22.31107  01 47 38.146  +16 01 58.76  24.0r 14UJ229   568  C~2SDj      
2014 10  22.35609  01 47 37.915  +16 01 57.27  23.9r 14UJ229   568  C~2SDj      
2014 10  22.40538  01 47 37.663  +16 01 55.67  23.7r 14UJ229   568  C~2SDj      
2014 10  23.50164  01 47 32.138  +16 01 18.97  23.5r 14UJ229   568  C~2SDj      
2014 10  25.51762  01 47 22.012  +16 00 11.50  23.8r 14UJ229   568  C~2SDj      
2014 11  20.24902  01 45 20.373  +15 45 39.03  23.9r 14UJ229   568  C~2SDj      
2014 11  20.38929  01 45 19.769  +15 45 34.48  23.9r 14UJ229   568  C~2SDj      
2014 11  21.29042  01 45 15.986  +15 45 04.94  23.7r 14UJ229   568  C~2SDj      
2014 11  21.44526  01 45 15.341  +15 44 59.74  23.7r 14UJ229   568  C~2SDj      
2015 01  24.26131  01 43 37.720  +15 23 01.42  23.8r 14UJ229   568  C~2SDj      
2015 01  24.32704  01 43 37.842  +15 23 01.45  23.8r 14UJ229   568  C~2SDj      
2015 02  19.27277  01 44 52.529  +15 24 28.80  23.9r 14UJ229   568  C~2SDj      
2015 10  12.48210  01 54 58.875  +16 07 24.61        14UJ229   568  C~2SDj      
2015 12  31.32052  01 49 51.590  +15 27 59.85  24.3w 14UJ229   568  C~2SDj      
2016 01  07.29206  01 49 46.614  +15 26 08.07  24.1w 14UJ229   568  C~2SDj      
2017 08  25.56297  02 10 52.489  +16 21 44.66  24.2w 14UJ229   568  C~2SDj      
2017 08  30.58559  02 10 42.505  +16 20 46.53  24.1w 14UJ229   568  C~2SDj      

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    -0.01
     2   0.0001      0.40     0.04       0.13     0.01
     3   0.0792   -302.15     0.07      47.58     0.03
     4   0.0794   -304.45     0.05      47.65    -0.02
     5   0.0956   -514.66    -0.04      52.68    -0.00
     6   0.0959   -518.92     0.05      52.74    -0.07
     7   0.1477  -1484.02     0.08      50.04     0.00
     8   0.1478  -1486.80    -0.03      50.03     0.02
     9   0.1615  -1805.34    -0.01      43.57     0.03
    10   0.2403  -3954.48    -0.05     -51.42     0.02
    11   0.2404  -3958.12    -0.06     -51.63     0.03
    12   0.2405  -3962.09    -0.05     -51.82     0.05
    13   0.2435  -4049.63    -0.14     -57.64    -0.10
    14   0.2491  -4210.16    -0.02     -68.45    -0.02
    15   0.3195  -6162.52    -0.07    -253.37    -0.02
    16   0.3199  -6172.31    -0.02    -254.48     0.03
    17   0.3224  -6233.95    -0.09    -262.38     0.12
    18   0.3228  -6244.52     0.06    -263.89    -0.07
    19   0.4975  -8037.97    -0.03    -984.96    -0.09
    20   0.4977  -8036.32     0.36    -985.57     0.10
    21   0.5687  -6996.15    -0.13   -1294.13    -0.10
    22   1.2127   2104.34    -0.10   -1989.84    -0.09
    23   1.4313  -2879.88    -0.05   -2643.05     0.06
    24   1.4504  -2986.84     0.11   -2722.07     0.11
    25   3.0829  15345.20    -0.08   -5858.03     0.02
    26   3.0966  15189.46     0.09   -5865.25    -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.

14UJ229    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.712    41.720    41.704
ecceobj         0.100     0.100     0.099
incobj         20.964    20.964    20.964
qmin           36.625    36.609    36.663
qmax           46.530    46.571    46.415
amean          41.431    41.452    41.421
amin           41.099    41.121    41.097
amax           41.790    41.800    41.768
emean           0.099     0.100     0.098
emin            0.085     0.085     0.084
emax            0.113     0.115     0.112
imean          22.113    22.110    22.117
imin           21.567    21.551    21.566
imax           22.594    22.611    22.598
excite_mean     0.389     0.389     0.389
fracstop        1.000     1.000     1.000
cjmean          2.889     2.889     2.889

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       185.6     184.4     185.7
kozaiamp        180.0     180.0     180.0