Orbit Fit and Astrometric record for 14FX61

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: 14FX61    
# Created Sat Dec  4 02:12:23 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     43 observations of     43
# Arc:   5.19y
# First observation: 2014/03/30
#  Last observation: 2019/06/06
# Chi-squared of fit:    24.00 DOF:     80 RMS:  0.13
# Min/Max residuals:    -0.39    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.647459E-05  2.686544E-02  5.864293E-06  1.059729E-02  2.697078E-02 -2.597800E-03
# Covariance matrix:
  5.2106E-14 -1.5980E-14  8.9630E-16 -5.7388E-15  5.5420E-14 -1.3531E-13
 -1.5980E-14  1.5500E-13 -8.1515E-15  5.2525E-14  1.5052E-13  1.1671E-12
  8.9630E-16 -8.1515E-15  4.4791E-14 -1.7472E-14 -3.4995E-15 -8.2174E-14
 -5.7388E-15  5.2525E-14 -1.7472E-14  4.4268E-14  2.2819E-14  5.2895E-13
  5.5420E-14  1.5052E-13 -3.4995E-15  2.2819E-14  5.9511E-13  4.4964E-13
 -1.3531E-13  1.1671E-12 -8.2174E-14  5.2895E-13  4.4964E-13  1.1869E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.133657 -170.305605    0.008676    0.002455   -0.997439  2456746.554703
# Heliocentric elements and errors
Epoch:              2456746.5000  =  2014/03/30
Mean Anomaly:          328.07677 +/-     0.033
Argument of Peri:       42.60175 +/-     0.046
Long of Asc Node:      189.34795 +/-     0.000
Inclination:            21.51395 +/-     0.000
Eccentricity:         0.14512693 +/-    0.0001
Semi-Major Axis:     43.07351137 +/-    0.0053
Time of Perihelion: 2465902.7606 +/-      19.8
Perihelion:          36.82238501 +/-    0.0064
Aphelion:            49.32463774 +/-    0.0076
Period (y)              282.6986 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -37.53365548 +/-    0.0010
Ecliptic Y           -6.40149672 +/-    0.0002
Ecliptic Z            0.08668615 +/-    0.0000
Ecliptic XDOT         0.00071608 +/-    0.0000
Ecliptic YDOT        -0.00264659 +/-    0.0000
Ecliptic ZDOT         0.00107526 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.07579504 +/-    0.0010
Geocenter to KBO     37.07724020 +/-    0.0011
# Hcoef:  7.70

The following table shows the complete astrometric record for 14FX61. 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 (14FX61) followed by the observatory code and reference code for the source of the astrometry.

2014 03  30.053925 12 35 50.51   -03 43 04.1   23.4w 14FX61    W84  C~143r      
2014 03  30.065200 12 35 50.46   -03 43 03.7   23.6w 14FX61    W84  C~143r      
2014 03  30.076329 12 35 50.40   -03 43 03.4   23.4w 14FX61    W84  C~143r      
2014 03  30.089055 12 35 50.33   -03 43 02.9   23.4w 14FX61    W84  C~143r      
2014 03  30.114996 12 35 50.22   -03 43 01.9   23.4w 14FX61    W84  C~143r      
2014 03  30.126183 12 35 50.17   -03 43 01.5   23.4w 14FX61    W84  C~143r      
2014 03  30.137299 12 35 50.12   -03 43 01.2   23.5w 14FX61    W84  C~143r      
2014 03  30.150522 12 35 50.05   -03 43 00.7   23.4w 14FX61    W84  C~143r      
2014 03  30.160122 12 35 49.99   -03 43 00.2   23.4w 14FX61    W84  C~143r      
2014 03  30.295039 12 35 49.35   -03 42 55.2   23.3w 14FX61    W84  C~143r      
2014 03  30.305870 12 35 49.28   -03 42 54.8   23.5w 14FX61    W84  C~143r      
2014 03  30.334470 12 35 49.16   -03 42 53.9   23.1w 14FX61    W84  C~143r      
2014 03  30.344498 12 35 49.09   -03 42 53.4   23.0w 14FX61    W84  C~143r      
2014 03  30.355501 12 35 49.06   -03 42 53.0   23.1w 14FX61    W84  C~143r      
2014 03  31.085704 12 35 45.57   -03 42 26.1   23.9w 14FX61    W84  C~143r      
2014 03  31.096460 12 35 45.50   -03 42 25.5   23.6w 14FX61    W84  C~143r      
2014 03  31.106041 12 35 45.46   -03 42 25.1   23.6w 14FX61    W84  C~143r      
2014 03  31.117373 12 35 45.41   -03 42 24.5   23.6w 14FX61    W84  C~143r      
2014 03  31.128195 12 35 45.36   -03 42 24.3   23.4w 14FX61    W84  C~143r      
2014 03  31.137803 12 35 45.31   -03 42 23.9   23.5w 14FX61    W84  C~143r      
2014 03  31.148145 12 35 45.26   -03 42 23.6   23.6w 14FX61    W84  C~143r      
2014 03  31.158359 12 35 45.20   -03 42 23.0   23.4w 14FX61    W84  C~143r      
2014 03  31.167978 12 35 45.17   -03 42 22.8   23.6w 14FX61    W84  C~143r      
2014 03  31.178527 12 35 45.11   -03 42 22.5   23.7w 14FX61    W84  C~143r      
2014 03  31.188499 12 35 45.06   -03 42 22.1   23.3w 14FX61    W84  C~143r      
2014 03  31.198109 12 35 45.02   -03 42 21.7   23.3w 14FX61    W84  C~143r      
2014 04  07.171877 12 35 11.71   -03 38 03.3   23.6w 14FX61    W84  C~14R3      
2014 04  07.184958 12 35 11.65   -03 38 03.1   23.4w 14FX61    W84  C~14R3      
2014 04  08.248008 12 35 06.59   -03 37 23.6   23.5w 14FX61    W84  C~14R3      
2014 04  08.258639 12 35 06.52   -03 37 23.5   23.8w 14FX61    W84  C~14R3      
2014 06  15.16817  12 31 41.60   -03 08 27.1   23.6R 14FX61    695  C~18DB      
2014 06  16.15971  12 31 41.24   -03 08 18.8   23.7R 14FX61    695  C~18DB      
2014 06  16.17908  12 31 41.24   -03 08 18.5   23.7R 14FX61    695  C~18DB      
2016 04  16.48285  12 47 45.91   -03 37 30.8   23.6R 14FX61    568  C~1t3j      
2016 04  16.50135  12 47 45.82   -03 37 30.2   23.3R 14FX61    568  C~1t3j      
2016 04  16.51891  12 47 45.75   -03 37 29.5   23.5R 14FX61    568  C~1t3j      
2016 04  16.53631  12 47 45.67   -03 37 29.0   23.3R 14FX61    568  C~1t3j      
2016 05  12.38288  12 45 58.77   -03 23 51.7   23.4R 14FX61    568  C~1t3j      
2016 05  12.39580  12 45 58.74   -03 23 51.6   23.5R 14FX61    568  C~1t3j      
2016 05  12.44118  12 45 58.56   -03 23 50.2   23.5R 14FX61    568  C~1t3j      
2016 05  12.45069  12 45 58.52   -03 23 49.9   23.7R 14FX61    568  C~1t3j      
2019 06  06.183780 13 04 55.293  -03 22 13.44  23.8G 14FX61    G37  C~36oO      
2019 06  06.261110 13 04 55.136  -03 22 12.32        14FX61    G37  C~36oO      

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    -0.11       0.00     0.12
     2   0.0000      0.00    -0.04       0.00     0.11
     3   0.0001      0.00    -0.13       0.00    -0.01
     4   0.0001      0.00    -0.25       0.00     0.02
     5   0.0002      0.00    -0.01       0.00     0.06
     6   0.0002      0.00     0.06       0.00     0.04
     7   0.0002      0.00     0.12       0.00    -0.07
     8   0.0003      0.00     0.04       0.00    -0.06
     9   0.0003      0.00    -0.15       0.00     0.08
    10   0.0007      0.00     0.12       0.00     0.06
    11   0.0007      0.00    -0.14       0.00     0.06
    12   0.0008      0.00     0.15       0.00    -0.11
    13   0.0008      0.00    -0.17       0.00     0.02
    14   0.0008      0.00     0.18       0.00     0.01
    15   0.0028      0.00     0.08       0.00    -0.25
    16   0.0029      0.00    -0.18       0.00    -0.05
    17   0.0029      0.00    -0.09       0.00    -0.01
    18   0.0029      0.00    -0.01       0.00     0.17
    19   0.0029      0.00     0.03       0.00    -0.03
    20   0.0030      0.00    -0.01       0.00     0.01
    21   0.0030      0.00    -0.01       0.00    -0.07
    22   0.0030      0.00    -0.16       0.00     0.15
    23   0.0031      0.00     0.10       0.00    -0.01
    24   0.0031      0.00    -0.03       0.00    -0.10
    25   0.0031      0.00    -0.05       0.00    -0.07
    26   0.0031      0.00     0.05       0.00    -0.03
    27   0.0222      0.00     0.30       0.00    -0.11
    28   0.0223      0.00     0.35       0.00    -0.39
    29   0.0252      0.00     0.05       0.00     0.00
    30   0.0252      0.00    -0.23       0.00    -0.29
    31   0.2111      0.00    -0.08       0.00     0.01
    32   0.2138      0.00     0.01       0.00     0.05
    33   0.2139      0.00     0.12       0.00     0.20
    34   2.0491      0.00    -0.06       0.00     0.17
    35   2.0491      0.00    -0.10       0.00     0.12
    36   2.0492      0.00     0.09       0.00     0.19
    37   2.0492      0.00     0.12       0.00     0.08
    38   2.1200      0.00    -0.04       0.00     0.17
    39   2.1200      0.00     0.20       0.00    -0.08
    40   2.1202      0.00    -0.10       0.00     0.10
    41   2.1202      0.00    -0.20       0.00     0.15
    42   5.1858      0.00    -0.06       0.00    -0.18
    43   5.1861      0.00     0.07       0.00    -0.18

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.

14FX61    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.771    42.771    42.771
ecceobj         0.141     0.141     0.141
incobj         21.586    21.586    21.586
qmin           35.925    35.995    35.995
qmax           50.339    50.345    50.328
amean          42.995    42.994    42.982
amin           42.632    42.636    42.614
amax           43.401    43.393    43.386
emean           0.145     0.144     0.144
emin            0.129     0.129     0.129
emax            0.161     0.161     0.160
imean          21.632    21.635    21.635
imin           21.093    21.093    21.093
imax           22.137    22.158    22.130
excite_mean     0.396     0.396     0.396
fracstop        1.000     1.000     1.000
cjmean          2.898     2.898     2.898

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       184.4     184.7     184.8
kozaiamp        179.9     180.0     180.0