Orbit Fit and Astrometric record for 14UX277

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: 14UX277   
# Created Tue Dec  7 02:12:57 2021
# Orbit generated from Bernstein formalism
# Fitting     15 observations of     15
# Arc:   3.19y
# First observation: 2014/10/31
#  Last observation: 2018/01/09
Preliminary a, adot, b, bdot, g, gdot:
   0.000093   0.020350  -0.000014  -0.004056   0.021132   0.000000
# Chi-squared of fit:     6.32 DOF:     24 RMS:  0.11
# Min/Max residuals:    -0.25    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.485662E-05  1.993790E-02 -3.002477E-06 -3.963596E-03  2.057163E-02 -8.852955E-03
# Covariance matrix:
  5.8520E-13 -1.1512E-13 -5.2886E-14 -1.4175E-14  6.4063E-13 -1.5659E-12
 -1.1512E-13  9.8785E-13  1.4279E-15 -1.8116E-13  8.5928E-13  1.5979E-11
 -5.2886E-14  1.4279E-15  2.8066E-13 -1.0308E-13 -1.0827E-13  2.6085E-13
 -1.4175E-14 -1.8116E-13 -1.0308E-13  9.9626E-14 -2.0166E-13 -3.0593E-12
  6.4063E-13  8.5928E-13 -1.0827E-13 -2.0166E-13  2.1451E-12  1.1949E-11
 -1.5659E-12  1.5979E-11  2.6085E-13 -3.0593E-12  1.1949E-11  2.8241E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -31.013395   37.836816    0.007536   -0.512083   -0.852163  2456961.763688
# Heliocentric elements and errors
Epoch:              2456960.5000  =  2014/10/30
Mean Anomaly:          342.45069 +/-     0.048
Argument of Peri:      319.56139 +/-     0.042
Long of Asc Node:      148.94606 +/-     0.002
Inclination:            32.18847 +/-     0.000
Eccentricity:         0.58093508 +/-    0.0010
Semi-Major Axis:     91.14799459 +/-    0.1646
Time of Perihelion: 2472454.9657 +/-       3.2
Perihelion:          38.19692692 +/-    0.1127
Aphelion:           144.09906225 +/-    0.2751
Period (y)              870.2196 +/-      2.36
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.68940860 +/-    0.0024
Ecliptic Y           26.16141800 +/-    0.0018
Ecliptic Z          -25.04624774 +/-    0.0018
Ecliptic XDOT        -0.00264425 +/-    0.0000
Ecliptic YDOT         0.00130464 +/-    0.0000
Ecliptic ZDOT         0.00015507 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   49.46423526 +/-    0.0021
Geocenter to KBO     48.61062992 +/-    0.0035
# Hcoef:  6.87

The following table shows the complete astrometric record for 14UX277. 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 (14UX277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  31.26291  03 01 45.147  -15 17 01.74  24.5r 14UX277   W84  C~55Sh      
2014 11  16.29015  03 00 39.675  -15 21 30.19  23.5r 14UX277   W84  C~55Sh      
2014 12  01.25204  02 59 40.588  -15 22 54.94  23.4i 14UX277   W84  C~55Sh      
2014 12  20.20018  02 58 36.581  -15 20 40.29  24.4g 14UX277   W84  C~55Sh      
2015 12  14.21807  03 03 42.628  -15 12 36.25  24.0g 14UX277   W84  C~55Sh      
2015 12  14.21945  03 03 42.647  -15 12 36.28  23.4i 14UX277   W84  C~55Sh      
2015 12  14.22084  03 03 42.639  -15 12 36.15  24.0r 14UX277   W84  C~55Sh      
2015 12  14.22221  03 03 42.634  -15 12 36.22  24.3g 14UX277   W84  C~55Sh      
2016 11  10.30206  03 10 44.641  -15 00 41.48  23.7r 14UX277   W84  C~55Sh      
2016 12  30.10564  03 07 44.744  -14 58 33.83  23.5r 14UX277   W84  C~55Sh      
2017 12  08.22710  03 13 49.874  -14 52 54.65  23.2i 14UX277   W84  C~55Sh      
2017 12  10.16610  03 13 42.709  -14 52 44.74  24.0r 14UX277   W84  C~55Sh      
2017 12  10.16749  03 13 42.709  -14 52 44.66  23.7g 14UX277   W84  C~55Sh      
2018 01  09.13511  03 12 17.536  -14 44 15.34  23.8r 14UX277   W84  C~55Sh      
2018 01  09.13790  03 12 17.543  -14 44 15.21  24.4g 14UX277   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     0.10       0.00    -0.01
     2   0.0439   -983.01    -0.08      54.03     0.08
     3   0.0848  -1819.03     0.25     250.70    -0.13
     4   0.1367  -2651.89    -0.19     677.04     0.23
     5   1.1197   1693.66    -0.25    -304.59    -0.02
     6   1.1197   1693.91     0.06    -304.71    -0.17
     7   1.1197   1693.84     0.05    -304.55    -0.04
     8   1.1197   1693.75     0.02    -304.59    -0.12
     9   2.0289   7699.93    -0.02   -1657.44     0.20
    10   2.1652   5282.83     0.02    -666.47    -0.03
    11   3.1046  10390.12    -0.09   -2123.56     0.06
    12   3.1099  10295.49    -0.05   -2078.99    -0.01
    13   3.1099  10295.52     0.05   -2078.91     0.04
    14   3.1920   9302.47    -0.03   -1181.15    -0.03
    15   3.1920   9302.61     0.16   -1181.06    -0.04

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.

14UX277    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        92.166    92.628    91.710
ecceobj         0.583     0.585     0.580
incobj         32.137    32.137    32.138
qmin           36.586    36.660    36.641
qmax          148.199   148.423   147.091
amean          90.634    90.949    90.226
amin           89.192    89.388    88.784
amax           92.832    93.148    92.331
emean           0.578     0.581     0.575
emin            0.562     0.570     0.560
emax            0.596     0.596     0.593
imean          30.981    30.891    30.972
imin           30.125    30.175    30.109
imax           31.932    31.457    31.934
excite_mean     0.774     0.775     0.772
fracstop        1.000     1.000     1.000
cjmean          2.760     2.759     2.761

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       130.2     147.8     130.0
kozaiamp        180.0     180.0     180.0