Orbit Fit and Astrometric record for 544977

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: 544977    
# Created Sat Jun  6 01:07:54 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   67 observations of   67
# Arc:   6.02y
# First observation: 2014/01/20
#  Last observation: 2020/01/29
# Chi-squared of fit:    48.94 DOF:  128 RMS:  0.15
# Min/Max residuals:    -0.50    0.55
# Exact a, adot, b, bdot, g, gdot:
  1.467995E-05  2.217747E-02 -3.783718E-07 -4.747842E-04  2.379530E-02 -1.105549E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
  -20.088438  127.947955    0.133563   -0.333893   -0.913318  2456677.967028
# Heliocentric elements and errors
Epoch:              2456678.5000  =  2014/01/21
Mean Anomaly:          230.59585 +/-     0.000
Argument of Peri:       41.83287 +/-     0.000
Long of Asc Node:      221.47130 +/-     0.000
Inclination:            19.67975 +/-     0.000
Eccentricity:         0.07078381 +/-    0.0000
Semi-Major Axis:     40.98590344 +/-    0.0000
Time of Perihelion: 2491129.0304 +/-       0.0
Perihelion:          38.08476486 +/-    0.0000
Aphelion:            43.88704202 +/-    0.0000
Period (y)              262.3977 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.76519726 +/-    0.0000
Ecliptic Y           31.97443104 +/-    0.0000
Ecliptic Z          -14.43440519 +/-    0.0000
Ecliptic XDOT        -0.00193318 +/-    0.0000
Ecliptic YDOT        -0.00168071 +/-    0.0000
Ecliptic ZDOT        -0.00000748 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.94221786 +/-    0.0000
Geocenter to KBO     42.02516594 +/-    0.0000
# Hcoef:  6.27

The following table shows the complete astrometric record for 544977. 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 (544977) followed by the observatory code and reference code for the source of the astrometry.

2014 01  20.46625  08 21 08.606  -01 10 36.07  22.7G 544977    F51  C~346t      
2014 11  23.60538  08 29 32.284  -01 26 53.17  22.4G 544977    F51  C~346t      
2014 11  23.61679  08 29 32.280  -01 26 53.34  22.3G 544977    F51  C~346t      
2014 11  23.62821  08 29 32.247  -01 26 53.65  22.3G 544977    F51  C~346t      
2014 11  23.63961  08 29 32.239  -01 26 53.59  22.2G 544977    F51  C~346t      
2015 01  25.37594  08 25 41.780  -01 29 45.92  22.3G 544977    F51  C~346t      
2015 01  25.38900  08 25 41.691  -01 29 45.53  22.6G 544977    F51  C~346t      
2015 01  25.40205  08 25 41.651  -01 29 45.36  22.8G 544977    F51  C~346t      
2015 01  25.41513  08 25 41.592  -01 29 45.19  22.3G 544977    F51  C~346t      
2015 02  19.36105  08 23 47.945  -01 20 44.52  22.1G 544977    F51  C~346t      
2015 02  19.37388  08 23 47.880  -01 20 44.21  22.5G 544977    F51  C~346t      
2015 02  19.38667  08 23 47.823  -01 20 43.97  22.1G 544977    F51  C~346t      
2015 02  19.39951  08 23 47.772  -01 20 43.40  22.1G 544977    F51  C~346t      
2015 02  20.36902  08 23 43.723  -01 20 17.51  21.7G 544977    F51  C~346t      
2015 02  20.38188  08 23 43.679  -01 20 16.99  22.4G 544977    F51  C~346t      
2015 02  20.39479  08 23 43.649  -01 20 17.14  22.6G 544977    F51  C~346t      
2015 02  20.40769  08 23 43.557  -01 20 16.81  22.1G 544977    F51  C~346t      
2015 12  07.58722  08 33 55.233  -01 50 59.46  23.0G 544977    F51  C~346t      
2015 12  07.59891  08 33 55.208  -01 50 59.58  23.4G 544977    F51  C~346t      
2015 12  07.61062  08 33 55.128  -01 50 59.81  22.7G 544977    F51  C~346t      
2016 01  11.47281  08 31 44.033  -01 52 53.48  22.5G 544977    F51  C~346t      
2016 01  11.48450  08 31 43.977  -01 52 53.19  22.0G 544977    F51  C~346t      
2016 01  11.49618  08 31 43.934  -01 52 53.06  22.3G 544977    F51  C~346t      
2016 01  11.50786  08 31 43.880  -01 52 53.08  22.2G 544977    F51  C~346t      
2016 01  12.43662  08 31 39.630  -01 52 45.69  22.2G 544977    F51  C~346t      
2016 01  12.44854  08 31 39.588  -01 52 45.78  22.3G 544977    F51  C~346t      
2016 01  12.47242  08 31 39.484  -01 52 44.90  22.8G 544977    F51  C~346t      
2016 02  02.42404  08 30 00.847  -01 47 48.20  22.5G 544977    F51  C~346t      
2016 02  02.43570  08 30 00.787  -01 47 48.02  22.2G 544977    F51  C~346t      
2016 02  02.44728  08 30 00.733  -01 47 47.75  22.4G 544977    F51  C~346t      
2016 02  11.32974  08 29 19.654  -01 44 33.97  22.2G 544977    F51  C~346t      
2016 02  11.34295  08 29 19.599  -01 44 33.67  22.4G 544977    F51  C~346t      
2016 02  11.35553  08 29 19.539  -01 44 33.64  22.4G 544977    F51  C~346t      
2016 02  11.36810  08 29 19.482  -01 44 33.21  22.3G 544977    F51  C~346t      
2016 02  25.39303  08 28 19.729  -01 38 24.84  22.6G 544977    F51  C~346u      
2016 03  02.31396  08 27 57.256  -01 35 31.94  22.2G 544977    F51  C~346u      
2016 03  02.32652  08 27 57.208  -01 35 31.56  22.5G 544977    F51  C~346u      
2016 03  02.33906  08 27 57.176  -01 35 31.12  22.1G 544977    F51  C~346u      
2016 03  02.35158  08 27 57.123  -01 35 30.93  22.7G 544977    F51  C~346u      
2016 03  06.26118  08 27 43.427  -01 33 32.55  22.6G 544977    F51  C~346u      
2016 03  06.27375  08 27 43.384  -01 33 32.16  22.9G 544977    F51  C~346u      
2016 03  06.28629  08 27 43.333  -01 33 32.06  22.7G 544977    F51  C~346u      
2016 03  06.29887  08 27 43.294  -01 33 31.43  23.0G 544977    F51  C~346u      
2016 03  10.24602  08 27 30.465  -01 31 29.51  22.9G 544977    F51  C~346u      
2016 03  10.25836  08 27 30.428  -01 31 29.20  22.2G 544977    F51  C~346u      
2016 03  10.27069  08 27 30.381  -01 31 28.72  22.8G 544977    F51  C~346u      
2016 03  10.28303  08 27 30.348  -01 31 28.27  22.6G 544977    F51  C~346u      
2016 03  10.28367  08 27 30.343  -01 31 28.26  22.9G 544977    F51  C~346u      
2016 11  07.60850  08 39 28.295  -02 00 16.80  22.6G 544977    F51  C~346u      
2017 01  31.36989  08 35 03.532  -02 08 36.62  22.6G 544977    F51  C~346u      
2017 01  31.38217  08 35 03.479  -02 08 36.47  22.8G 544977    F51  C~346u      
2017 01  31.39443  08 35 03.416  -02 08 36.01  22.2G 544977    F51  C~346u      
2017 01  31.40670  08 35 03.359  -02 08 35.97  22.5G 544977    F51  C~346u      
2017 03  13.33487  08 32 16.506  -01 50 17.10  22.7G 544977    F51  C~346u      
2017 10  31.63347  08 44 16.395  -02 16 26.65  22.8G 544977    F51  C~346u      
2017 12  10.55444  08 43 34.325  -02 32 03.03  22.6G 544977    F51  C~346u      
2018 01  07.49933  08 41 52.392  -02 33 54.66  22.8G 544977    F51  C~346u      
2018 01  14.43941  08 41 21.334  -02 33 05.21  22.3G 544977    F51  C~346u      
2018 01  14.45191  08 41 21.280  -02 33 05.16  22.0G 544977    F51  C~346u      
2018 01  14.46457  08 41 21.218  -02 33 05.15  22.0G 544977    F51  C~346u      
2018 01  14.47706  08 41 21.175  -02 33 05.22  21.9G 544977    F51  C~346u      
2020 01  29.44088  08 50 09.067  -03 10 27.14  22.5w 544977    F51  C           
2020 01  29.44088  08 50 09.067  -03 10 27.14  22.5w 544977    F51  C~3cpP      
2020 01  29.45313  08 50 09.027  -03 10 27.02  22.2w 544977    F51  C           
2020 01  29.45313  08 50 09.027  -03 10 27.02  22.2w 544977    F51  C~3cpP      
2020 01  29.46547  08 50 08.961  -03 10 26.80  22.5w 544977    F51  C           
2020 01  29.46547  08 50 08.961  -03 10 26.80  22.5w 544977    F51  C~3cpP      

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     0.01       0.00     0.01
  2   0.8409      0.00    -0.04       0.00    -0.06
  3   0.8409      0.00     0.19       0.00     0.01
  4   0.8410      0.00    -0.01       0.00    -0.06
  5   0.8410      0.00     0.17       0.00     0.24
  6   1.0128      0.00     0.03       0.00    -0.14
  7   1.0128      0.00    -0.36       0.00     0.05
  8   1.0128      0.00    -0.02       0.00     0.01
  9   1.0129      0.00     0.05       0.00    -0.03
 10   1.0812      0.00     0.15       0.00     0.05
 11   1.0812      0.00    -0.01       0.00     0.02
 12   1.0812      0.00    -0.05       0.00    -0.08
 13   1.0813      0.00     0.01       0.00     0.15
 14   1.0839      0.00    -0.33       0.00     0.07
 15   1.0840      0.00    -0.17       0.00     0.24
 16   1.0840      0.00     0.19       0.00    -0.25
 17   1.0840      0.00    -0.37       0.00    -0.27
 18   1.8785      0.00     0.11       0.00     0.14
 19   1.8785      0.00     0.22       0.00     0.18
 20   1.8786      0.00    -0.50       0.00     0.11
 21   1.9740      0.00    -0.04       0.00    -0.11
 22   1.9740      0.00    -0.07       0.00     0.09
 23   1.9741      0.00     0.10       0.00     0.13
 24   1.9741      0.00     0.10       0.00     0.02
 25   1.9766      0.00    -0.09       0.00     0.06
 26   1.9767      0.00     0.11       0.00    -0.13
 27   1.9767      0.00     0.22       0.00     0.55
 28   2.0341      0.00     0.07       0.00    -0.02
 29   2.0341      0.00     0.01       0.00    -0.07
 30   2.0342      0.00     0.03       0.00    -0.03
 31   2.0585      0.00    -0.04       0.00     0.17
 32   2.0585      0.00     0.04       0.00     0.16
 33   2.0586      0.00     0.01       0.00    -0.11
 34   2.0586      0.00     0.02       0.00     0.02
 35   2.0970      0.00     0.14       0.00    -0.01
 36   2.1132      0.00    -0.07       0.00    -0.00
 37   2.1132      0.00    -0.09       0.00     0.00
 38   2.1133      0.00     0.13       0.00     0.07
 39   2.1133      0.00     0.03       0.00    -0.12
 40   2.1240      0.00     0.11       0.00    -0.02
 41   2.1240      0.00     0.12       0.00    -0.01
 42   2.1241      0.00     0.00       0.00    -0.30
 43   2.1241      0.00     0.07       0.00    -0.05
 44   2.1349      0.00     0.03       0.00    -0.09
 45   2.1350      0.00     0.07       0.00    -0.16
 46   2.1350      0.00    -0.05       0.00    -0.06
 47   2.1350      0.00     0.05       0.00     0.00
 48   2.1350      0.00     0.00       0.00    -0.01
 49   2.7985      0.00     0.17       0.00     0.07
 50   3.0305      0.00    -0.11       0.00    -0.00
 51   3.0306      0.00    -0.02       0.00    -0.09
 52   3.0306      0.00    -0.08       0.00     0.14
 53   3.0306      0.00    -0.05       0.00    -0.05
 54   3.1427      0.00    -0.11       0.00     0.35
 55   3.7787      0.00     0.16       0.00     0.15
 56   3.8880      0.00    -0.47       0.00    -0.04
 57   3.9645      0.00    -0.09       0.00    -0.16
 58   3.9835      0.00    -0.15       0.00    -0.09
 59   3.9835      0.00    -0.08       0.00    -0.15
 60   3.9836      0.00    -0.13       0.00    -0.26
 61   3.9836      0.00     0.10       0.00    -0.45
 62   6.0232      0.00    -0.10       0.00     0.13
 63   6.0232      0.00    -0.10       0.00     0.13
 64   6.0232      0.00     0.19       0.00     0.04
 65   6.0232      0.00     0.19       0.00     0.04
 66   6.0233      0.00     0.09       0.00     0.04
 67   6.0233      0.00     0.09       0.00     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.

544977    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.856    40.856    40.856
ecceobj         0.072     0.072     0.072
incobj         19.658    19.658    19.658
qmin           37.083    37.093    37.081
qmax           44.742    44.753    44.743
amean          40.808    40.808    40.808
amin           40.489    40.485    40.490
amax           41.133    41.140    41.140
emean           0.075     0.075     0.075
emin            0.062     0.062     0.062
emax            0.088     0.088     0.088
imean          20.797    20.797    20.797
imin           20.208    20.219    20.209
imax           21.412    21.413    21.412
excite_mean     0.363     0.363     0.363
fracstop        1.000     1.000     1.000
cjmean          2.909     2.908     2.908

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       183.9     184.2     183.8
kozaiamp        180.0     180.0     180.0