Orbit Fit and Astrometric record for 14UH277

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: 14UH277   
# Created Sat Mar 30 01:17:25 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     13 observations of     13
# Arc:   9.13y
# First observation: 2014/10/21
#  Last observation: 2023/12/07
# Chi-squared of fit:     4.30 DOF:     20 RMS:  0.10
# Min/Max residuals:    -0.21    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.190367E-05  1.604655E-02 -6.198706E-07 -1.142851E-03  2.084766E-02  2.534672E-03
# Covariance matrix:
  3.3954E-13 -2.3086E-13 -1.1879E-14  1.4902E-14  4.4203E-14 -1.5318E-12
 -2.3086E-13  2.9524E-13  1.6934E-14 -2.0976E-14 -8.6458E-14  2.1672E-12
 -1.1879E-14  1.6934E-14  1.9555E-13 -2.8725E-14 -1.3794E-14  1.3367E-13
  1.4902E-14 -2.0976E-14 -2.8725E-14  1.0989E-14  7.6434E-15 -1.5985E-13
  4.4203E-14 -8.6458E-14 -1.3794E-14  7.6434E-15  8.9604E-13 -1.1835E-12
 -1.5318E-12  2.1672E-12  1.3367E-13 -1.5985E-13 -1.1835E-12  1.6754E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.777069   25.453753   -0.034801   -0.117439   -0.989746  2456951.772908
# Heliocentric elements and errors
Epoch:              2456952.5000  =  2014/10/22
Mean Anomaly:          140.23496 +/-     0.059
Argument of Peri:       81.87242 +/-     0.043
Long of Asc Node:      147.36666 +/-     0.002
Inclination:             7.80482 +/-     0.000
Eccentricity:         0.28718239 +/-    0.0001
Semi-Major Axis:     39.30392035 +/-    0.0067
Time of Perihelion: 2421892.9758 +/-      17.3
Perihelion:          28.01652672 +/-    0.0056
Aphelion:            50.59131397 +/-    0.0091
Period (y)              246.4121 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.89054485 +/-    0.0020
Ecliptic Y           20.93284332 +/-    0.0009
Ecliptic Z           -5.66049876 +/-    0.0003
Ecliptic XDOT        -0.00062770 +/-    0.0000
Ecliptic YDOT         0.00203245 +/-    0.0000
Ecliptic ZDOT        -0.00018821 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.95504294 +/-    0.0018
Geocenter to KBO     47.96694567 +/-    0.0022
# Hcoef:  6.79

The following table shows the complete astrometric record for 14UH277. 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 (14UH277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  21.27213  01 44 14.739  +03 31 32.10  23.9r 14UH277   W84  C~55Sg      
2014 10  28.23602  01 43 46.552  +03 28 51.98  23.5r 14UH277   W84  C~55Sg      
2014 10  29.23735  01 43 42.529  +03 28 29.95  24.0g 14UH277   W84  C~55Sg      
2014 10  29.24310  01 43 42.505  +03 28 29.65  23.3i 14UH277   W84  C~55Sg      
2015 09  04.32751  01 50 31.214  +04 06 26.71  23.0z 14UH277   W84  C~55Sg      
2015 11  18.16735  01 45 58.272  +03 38 12.33  23.5r 14UH277   W84  C~55Sg      
2016 10  22.19440  01 51 10.132  +04 02 58.77  23.7r 14UH277   W84  C~55Sg      
2016 11  03.16885  01 50 21.909  +03 58 34.21  23.1r 14UH277   W84  C~55Sg      
2016 11  04.20996  01 50 17.791  +03 58 12.52  24.0i 14UH277   W84  C~55Sg      
2017 08  27.36380  01 57 43.360  +04 40 14.51  24.0r 14UH277   W84  C~55Sg      
2023 12  07.111400 02 12 33.337  +05 38 13.30  23.6G 14UH277   G37  C~7dJ7      
2023 12  07.162000 02 12 33.186  +05 38 12.85        14UH277   G37  C~7dJ7      
2023 12  07.213960 02 12 33.037  +05 38 12.35        14UH277   G37  C~7dJ7      

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     0.07       0.00    -0.03
     2   0.0191      0.00    -0.05       0.00    -0.01
     3   0.0218      0.00    -0.04       0.00     0.19
     4   0.0218      0.00    -0.04       0.00     0.01
     5   0.8708      0.00     0.00       0.00    -0.21
     6   1.0757      0.00     0.16       0.00    -0.03
     7   2.0039      0.00     0.03       0.00     0.23
     8   2.0367      0.00    -0.08       0.00     0.03
     9   2.0395      0.00    -0.07       0.00    -0.20
    10   2.8504      0.00     0.08       0.00     0.04
    11   9.1276      0.00    -0.11       0.00    -0.04
    12   9.1277      0.00    -0.04       0.00     0.01
    13   9.1278      0.00     0.12       0.00     0.03

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.

14UH277    quality flag:3

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

axisobj        39.569    39.569    39.569
ecceobj         0.282     0.282     0.282
incobj          7.784     7.784     7.784
qmin           27.389    27.389    27.389
qmax           52.087    52.080    52.096
amean          39.454    39.454    39.454
amin           39.057    39.057    39.057
amax           39.947    39.941    39.952
emean           0.286     0.286     0.286
emin            0.270     0.270     0.270
emax            0.305     0.305     0.305
imean           7.596     7.596     7.596
imin            6.476     6.476     6.476
imax            8.582     8.583     8.581
excite_mean     0.316     0.316     0.316
fracstop        1.000     1.000     1.000
cjmean          2.937     2.937     2.937

libcent 0       180.0     180.0     179.8
libamp  0        42.3      42.3      42.3
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       185.4     185.4     185.4
kozaiamp        179.9     179.9     179.9