Orbit Fit and Astrometric record for 14UO277

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: 14UO277   
# Created Sat Nov 27 02:12:57 2021
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   3.89y
# First observation: 2014/10/23
#  Last observation: 2018/09/11
Preliminary a, adot, b, bdot, g, gdot:
  -0.000182   0.034620  -0.000006  -0.006470   0.030102   0.000000
# Chi-squared of fit:     4.63 DOF:     18 RMS:  0.11
# Min/Max residuals:    -0.23    0.14
# Exact a, adot, b, bdot, g, gdot:
  1.880504E-05  3.472865E-02 -2.962661E-06 -6.523255E-03  3.104450E-02  1.881010E-03
# Covariance matrix:
  3.9493E-13 -2.6212E-13 -5.0024E-15  9.9392E-15  3.0014E-13 -5.4921E-13
 -2.6212E-13  6.4716E-13  3.5155E-14 -1.0529E-13  3.9233E-13  4.8250E-12
 -5.0024E-15  3.5155E-14  2.7736E-13 -1.1605E-13  4.7381E-14  3.4079E-13
  9.9392E-15 -1.0529E-13 -1.1605E-13  1.0150E-13 -1.6798E-13 -1.0690E-12
  3.0014E-13  3.9233E-13  4.7381E-14 -1.6798E-13  2.3685E-12  7.2129E-12
 -5.4921E-13  4.8250E-12  3.4079E-13 -1.0690E-12  7.2129E-12  4.8088E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.083096   19.772960   -0.166926   -0.086882   -0.978764  2456953.746638
# Heliocentric elements and errors
Epoch:              2456950.5000  =  2014/10/20
Mean Anomaly:           28.50247 +/-     0.093
Argument of Peri:      169.99992 +/-     0.120
Long of Asc Node:      175.47291 +/-     0.001
Inclination:            11.71693 +/-     0.000
Eccentricity:         0.10589228 +/-    0.0001
Semi-Major Axis:     36.47514347 +/-    0.0074
Time of Perihelion: 2450579.9942 +/-      20.7
Perihelion:          32.61270722 +/-    0.0082
Aphelion:            40.33757973 +/-    0.0095
Period (y)              220.2945 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.05886576 +/-    0.0015
Ecliptic Y           11.34547482 +/-    0.0005
Ecliptic Z           -2.85412544 +/-    0.0001
Ecliptic XDOT        -0.00093304 +/-    0.0000
Ecliptic YDOT         0.00291604 +/-    0.0000
Ecliptic ZDOT        -0.00058762 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.18913938 +/-    0.0014
Geocenter to KBO     32.21182095 +/-    0.0016
# Hcoef:  8.41

The following table shows the complete astrometric record for 14UO277. 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 (14UO277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  23.24586  01 20 41.891  +03 01 24.91  24.3g 14UO277   W84  C~55Sh      
2014 10  28.22886  01 20 14.881  +02 58 33.75  23.5r 14UO277   W84  C~55Sh      
2014 10  29.22745  01 20 09.541  +02 58 00.21  23.0i 14UO277   W84  C~55Sh      
2014 11  15.17156  01 18 45.254  +02 49 37.82  23.2i 14UO277   W84  C~55Sh      
2015 11  06.18915  01 27 24.205  +03 17 38.60  23.6i 14UO277   W84  C~55Sh      
2015 11  06.19053  01 27 24.185  +03 17 38.16  24.2r 14UO277   W84  C~55Sh      
2015 11  06.19192  01 27 24.193  +03 17 38.47  23.9g 14UO277   W84  C~55Sh      
2016 11  05.15205  01 35 18.669  +03 41 08.46  23.7i 14UO277   W84  C~55Sh      
2016 11  05.15343  01 35 18.663  +03 41 08.32  23.4r 14UO277   W84  C~55Sh      
2017 08  22.37959  01 48 54.598  +04 46 22.26  23.2r 14UO277   W84  C~55Sh      
2017 08  22.38233  01 48 54.601  +04 46 22.04  23.7g 14UO277   W84  C~55Sh      
2018 09  11.34871  01 55 41.651  +04 58 45.46  23.6i 14UO277   W84  C~55Sh      

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    -0.23       0.00    -0.07
     2   0.0136   -439.25     0.13      -7.00     0.13
     3   0.0164   -525.99     0.07      -8.10    -0.03
     4   0.0628  -1884.98     0.05      -0.16     0.03
     5   1.0375   5953.99     0.09   -1351.62     0.07
     6   1.0375   5953.55    -0.23   -1351.92    -0.23
     7   1.0375   5953.78     0.11   -1351.67     0.02
     8   2.0367  13088.37     0.00   -2691.79     0.14
     9   2.0367  13088.24    -0.02   -2691.89     0.04
    10   2.8313  25997.28    -0.01   -3575.88     0.02
    11   2.8313  25997.24     0.06   -3576.11    -0.17
    12   3.8853  32052.38    -0.02   -5135.68     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.

14UO277    quality flag:3

Type:           4:3E      4:3E      4:3E

axisobj        36.772    36.794    36.750
ecceobj         0.114     0.114     0.113
incobj         11.674    11.674    11.675
qmin           31.751    31.950    31.806
qmax           41.443    41.375    41.448
amean          36.479    36.479    36.479
amin           36.132    36.104    36.154
amax           36.853    36.884    36.841
emean           0.098     0.099     0.098
emin            0.073     0.076     0.072
emax            0.127     0.122     0.127
imean          13.165    12.329    13.233
imin           10.799    10.644    10.841
imax           15.954    16.049    15.514
excite_mean     0.248     0.236     0.249
fracstop        1.000     1.000     1.000
cjmean          2.958     2.968     2.957

libcent 0       180.2     181.0     178.6
libamp  0        80.8      92.3      68.5
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       178.3     180.2     179.3
kozaiamp        180.0     180.0     180.0