Orbit Fit and Astrometric record for 15TV361

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: 15TV361   
# Created Wed Dec  8 02:13:35 2021
# Orbit generated from Bernstein formalism
# Fitting     22 observations of     23
# Arc:   4.94y
# First observation: 2013/10/04
#  Last observation: 2018/09/11
Preliminary a, adot, b, bdot, g, gdot:
  -0.000909   0.028645  -0.000383   0.012547   0.025669   0.000000
# Chi-squared of fit:    13.66 DOF:     38 RMS:  0.14
# Min/Max residuals:    -0.48    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.617239E-05  2.763423E-02  9.904462E-06  1.212326E-02  2.523547E-02 -6.748105E-03
# Covariance matrix:
  5.1700E-13 -3.3900E-13  8.7181E-14 -9.7784E-14  1.0821E-13 -1.5119E-12
 -3.3900E-13  3.2075E-13 -1.0801E-13  1.2065E-13  9.1302E-14  1.8804E-12
  8.7181E-14 -1.0801E-13  2.9629E-13 -1.2818E-13 -1.0208E-13 -7.7342E-13
 -9.7784E-14  1.2065E-13 -1.2818E-13  8.8137E-14  1.1145E-13  8.6139E-13
  1.0821E-13  9.1302E-14 -1.0208E-13  1.1145E-13  1.2568E-12  1.8143E-12
 -1.5119E-12  1.8804E-12 -7.7342E-13  8.6139E-13  1.8143E-12  1.3501E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.999701   14.557862    0.066268   -0.156038   -0.985889  2456569.662398
# Heliocentric elements and errors
Epoch:              2456560.5000  =  2013/09/25
Mean Anomaly:          351.89248 +/-     0.007
Argument of Peri:       14.13477 +/-     0.016
Long of Asc Node:       33.62935 +/-     0.000
Inclination:            25.19641 +/-     0.000
Eccentricity:         0.57606089 +/-    0.0002
Semi-Major Axis:     89.41692524 +/-    0.0491
Time of Perihelion: 2463515.7647 +/-       2.7
Perihelion:          37.90733187 +/-    0.0289
Aphelion:           140.92651861 +/-    0.0800
Period (y)              845.5471 +/-      0.70
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.86456334 +/-    0.0017
Ecliptic Y           10.02769532 +/-    0.0004
Ecliptic Z           -6.19842304 +/-    0.0003
Ecliptic XDOT        -0.00126051 +/-    0.0000
Ecliptic YDOT         0.00277043 +/-    0.0000
Ecliptic ZDOT         0.00141375 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.61316788 +/-    0.0016
Geocenter to KBO     39.62675617 +/-    0.0018
# Hcoef:  7.87

The following table shows the complete astrometric record for 15TV361. 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 (15TV361) followed by the observatory code and reference code for the source of the astrometry.

2013 10  04.16162  01 07 30.106  -02 33 57.08  25.0g 15TV361   W84  C~52Re      
2013 10  11.23671  01 06 56.601  -02 36 32.25  24.3g 15TV361   W84  C~52Re      
2013 10  11.24748  01 06 56.513  -02 36 32.51  23.7r 15TV361   W84  C~52Re      
2014 10  02.30923  01 12 28.208  -01 17 35.23  22.9i 15TV361   W84  C~52Re      
2014 10  03.30739  01 12 23.502  -01 17 57.97  23.7r 15TV361   W84  C~52Re      
2014 10  03.31013  01 12 23.503  -01 17 58.13  24.0i 15TV361   W84  C~52Re      
2014 11  15.09832  01 09 09.777  -01 29 55.85  24.0r 15TV361   W84  C~52Re      
2015 10  10.291805 01 16 42.906  -00 03 55.58  23.6r 15TV361   568  C~2TuU      
2015 10  10.335415 01 16 42.693  -00 03 56.56  23.6r 15TV361   568  C~2TuU      
2015 10  10.369788 01 16 42.522  -00 03 57.34  23.7r 15TV361   568  C~2TuU      
2015 10  10.408313 01 16 42.338  -00 03 58.18  23.6r 15TV361   568  C~2TuU      
2015 10  10.410464 01 16 42.325  -00 03 58.21  23.6r 15TV361   568  C~2TuU      
2015 10  14.274694 01 16 23.733  -00 05 21.14  24.4g 15TV361   568  C~2TuU      
2015 10  14.315442 01 16 23.533  -00 05 21.97  24.4g 15TV361   568  C~2TuU      
2015 10  14.388087 01 16 23.174  -00 05 23.43  24.6g 15TV361   568  C~2TuU      
2016 08  26.32824  01 24 37.714  +01 29 22.18  23.6r 15TV361   W84  C~52Re      
2016 10  23.22246  01 20 31.484  +01 08 53.71  23.6r 15TV361   W84  C~52Re      
2017 08  22.39195  01 29 45.671  +02 48 13.15  24.7r 15TV361   W84  C~52Re      
2017 08  28.33629  01 29 29.797  +02 46 39.23  23.4i 15TV361   W84  C~52Re      
2017 08  28.33766  01 29 29.790  +02 46 39.43  23.9r 15TV361   W84  C~52Re      
2017 08  28.37514  01 29 29.682  +02 46 38.70  24.7g 15TV361   W84  C~52Re      
2018 09  11.35023  01 33 45.564  +04 01 15.09  23.7r 15TV361   W84  C~52Re      
2018 09  11.35161  01 33 45.534  +04 01 14.92  23.0i 15TV361   W84  C~52Re      

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     0.24       0.00    -0.48
     2   0.0194   -523.08 (   0.57)     50.28 (  -0.08)
     3   0.0194   -524.40     0.06      50.55     0.10
     4   0.9942   5892.41     0.03    2504.05    -0.14
     5   0.9970   5818.47    -0.20    2510.31     0.15
     6   0.9970   5818.42    -0.05    2510.15    -0.02
     7   1.1141   2859.86    -0.03    2968.68    -0.08
     8   2.0154  11134.12    -0.01    5110.82     0.16
     9   2.0155  11130.79    -0.03    5111.14     0.14
    10   2.0156  11128.11    -0.09    5111.41     0.13
    11   2.0157  11125.23    -0.03    5111.70     0.10
    12   2.0157  11125.04    -0.05    5111.75     0.13
    13   2.0263  10834.88    -0.04    5142.84     0.08
    14   2.0264  10831.78    -0.04    5143.23     0.11
    15   2.0266  10826.24    -0.06    5143.96     0.19
    16   2.8944  19922.62     0.05    7543.45    -0.32
    17   3.0529  16010.38     0.23    7830.89     0.04
    18   3.8829  26094.09     0.04   10163.82    -0.02
    19   3.8992  25834.09    -0.04   10168.01    -0.21
    20   3.8992  25834.07     0.00   10168.24     0.02
    21   3.8993  25832.27     0.01   10168.19    -0.10
    22   4.9369  31210.16     0.21   12880.48    -0.01
    23   4.9369  31209.67    -0.20   12880.50     0.00

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.

15TV361    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        90.472    90.607    90.337
ecceobj         0.580     0.581     0.580
incobj         25.155    25.154    25.155
qmin           36.039    36.031    35.984
qmax          145.010   145.438   144.800
amean          88.858    89.002    88.729
amin           87.493    87.611    87.314
amax           90.954    91.164    90.887
emean           0.578     0.579     0.578
emin            0.563     0.564     0.562
emax            0.595     0.595     0.595
imean          24.182    24.188    24.126
imin           23.286    23.321    23.199
imax           25.150    25.128    25.131
excite_mean     0.709     0.709     0.708
fracstop        1.000     1.000     1.000
cjmean          2.896     2.896     2.896

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       124.6     121.6     129.4
kozaiamp        112.4     109.9     117.6