Orbit Fit and Astrometric record for 14FD70

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: 14FD70    
# Created Fri Dec  3 02:12:19 2021
# Orbit generated from Bernstein formalism
# Fitting      8 observations of      8
# Arc:   1.64y
# First observation: 2014/03/25
#  Last observation: 2015/11/15
Preliminary a, adot, b, bdot, g, gdot:
  -0.000004   0.010532  -0.000009  -0.002851   0.015526   0.000000
# Chi-squared of fit:     4.77 DOF:     10 RMS:  0.14
# Min/Max residuals:    -0.36    0.22
# Exact a, adot, b, bdot, g, gdot:
  9.546875E-06  1.073869E-02 -2.465882E-06 -2.937458E-03  1.600708E-02  4.255407E-03
# Covariance matrix:
  5.1168E-13  8.0395E-13  2.7564E-14 -4.4741E-13  2.4263E-12  7.9419E-11
  8.0395E-13  7.7360E-11  1.3207E-12 -2.5877E-11  1.4351E-10  5.0155E-09
  2.7564E-14  1.3207E-12  4.8156E-13 -7.9571E-13  2.5263E-12  8.7150E-11
 -4.4741E-13 -2.5877E-11 -7.9571E-13  9.2337E-12 -4.8769E-11 -1.6953E-09
  2.4263E-12  1.4351E-10  2.5263E-12 -4.8769E-11  2.7003E-10  9.3946E-09
  7.9419E-11  5.0155E-09  8.7150E-11 -1.6953E-09  9.3946E-09  3.2762E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -22.436091  163.153182   -0.357713   -0.354579   -0.859090  2456741.518058
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:           85.79705 +/-     6.576
Argument of Peri:      110.63632 +/-     3.349
Long of Asc Node:      289.37517 +/-     0.044
Inclination:            26.63249 +/-     0.012
Eccentricity:         0.37504534 +/-    0.0324
Semi-Major Axis:     57.26680390 +/-    1.4556
Time of Perihelion: 2419016.0698 +/-    2508.5
Perihelion:          35.78915585 +/-    2.0639
Aphelion:            78.74445195 +/-    2.7273
Period (y)              433.3738 +/-     16.52
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -56.26013892 +/-    0.0567
Ecliptic Y           16.66333690 +/-    0.0172
Ecliptic Z          -23.84291324 +/-    0.0245
Ecliptic XDOT        -0.00099827 +/-    0.0001
Ecliptic YDOT        -0.00162169 +/-    0.0000
Ecliptic ZDOT        -0.00074205 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   63.33525511 +/-    0.0514
Geocenter to KBO     62.47235305 +/-    0.0641
# Hcoef:  6.83

The following table shows the complete astrometric record for 14FD70. 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 (14FD70) followed by the observatory code and reference code for the source of the astrometry.

2014 03  25.01728  10 23 11.832  -14 05 57.71  24.9r 14FD70    807  C~1MjU      
2014 03  26.01882  10 23 08.966  -14 05 33.30        14FD70    807  C~1MjU      
2014 03  26.07481  10 23 08.837  -14 05 32.16        14FD70    807  C~1MjU      
2015 04  19.01783  10 24 16.970  -14 19 11.97        14FD70    304  C~2b7w      
2015 04  19.11547  10 24 16.790  -14 19 09.40  24.7r 14FD70    304  C~2b7w      
2015 04  20.11271  10 24 15.026  -14 18 43.70        14FD70    304  C~2b7w      
2015 11  14.34023  10 31 34.115  -14 45 53.12        14FD70    304  C~2b7w      
2015 11  15.34204  10 31 35.263  -14 46 23.21        14FD70    304  C~2b7w      

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     0.22       0.00    -0.09
     2   0.0027    -47.93    -0.36       6.08     0.04
     3   0.0029    -50.10     0.14       6.39     0.03
     4   1.0678   1182.73    -0.06    -359.41    -0.05
     5   1.0680   1179.32    -0.06    -358.07     0.01
     6   1.0708   1145.66     0.11    -344.45     0.10
     7   1.6409   7657.52     0.17     626.66    -0.09
     8   1.6436   7684.48    -0.16     605.26     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.

14FD70    quality flag:1

Type:       SCATNEAR     3:1EE12:5EEEEEE

axisobj        56.948    62.408    53.832
ecceobj         0.379     0.474     0.295
incobj         26.659    26.697    26.621
qmin           34.862    28.034    35.335
qmax           80.254    99.309    73.429
amean          57.060    62.629    53.972
amin           56.450    61.587    53.431
amax           57.864    64.008    54.620
emean           0.367     0.513     0.318
emin            0.347     0.465     0.282
emax            0.387     0.554     0.345
imean          28.638    25.041    27.227
imin           27.980    22.060    26.409
imax           29.430    28.401    28.302
excite_mean     0.604     0.666     0.557
fracstop        1.000     1.000     1.000
cjmean          2.774     2.720     2.814

libcent 0      -180.0     284.0     180.3
libamp  0      -180.0      49.2      79.7
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       180.8     161.1     223.6
kozaiamp        179.9      63.3     180.0