Orbit Fit and Astrometric record for 17VO34

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: 17VO34    
# Created Wed Dec  8 02:14:06 2021
# Orbit generated from Bernstein formalism
# Fitting     10 observations of     10
# Arc:   2.04y
# First observation: 2017/11/15
#  Last observation: 2019/11/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.008812  -0.000014   0.006937   0.016371   0.000000
# Chi-squared of fit:     2.46 DOF:     14 RMS:  0.09
# Min/Max residuals:    -0.20    0.13
# Exact a, adot, b, bdot, g, gdot:
  8.733548E-06  8.749947E-03  7.375521E-06  6.892247E-03  1.622737E-02 -3.083985E-03
# Covariance matrix:
  7.2283E-13 -2.7240E-13  1.3607E-14 -5.2738E-14  1.1954E-12 -3.8237E-12
 -2.7240E-13  4.0634E-12 -7.9916E-13  2.6386E-12  9.2557E-12  1.8821E-10
  1.3607E-14 -7.9916E-13  7.0698E-13 -9.5617E-13 -1.8225E-12 -4.2046E-11
 -5.2738E-14  2.6386E-12 -9.5617E-13  2.3021E-12  5.9784E-12  1.3918E-10
  1.1954E-12  9.2557E-12 -1.8225E-12  5.9784E-12  2.7890E-11  4.2612E-10
 -3.8237E-12  1.8821E-10 -4.2046E-11  1.3918E-10  4.2612E-10  9.9302E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -15.090222   62.475608    0.164946   -0.255293   -0.947563  2458072.756141
# Heliocentric elements and errors
Epoch:              2458070.5000  =  2017/11/13
Mean Anomaly:          247.70698 +/-     1.306
Argument of Peri:      118.18249 +/-     0.948
Long of Asc Node:       80.25481 +/-     0.003
Inclination:            40.74297 +/-     0.004
Eccentricity:         0.33052043 +/-    0.0040
Semi-Major Axis:     52.11762122 +/-    0.1906
Time of Perihelion: 2500937.7431 +/-     439.8
Perihelion:          34.89168243 +/-    0.2456
Aphelion:            69.34356001 +/-    0.3292
Period (y)              376.2574 +/-      2.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.09346919 +/-    0.0090
Ecliptic Y           53.55331861 +/-    0.0172
Ecliptic Z          -16.04287759 +/-    0.0052
Ecliptic XDOT        -0.00139597 +/-    0.0000
Ecliptic YDOT         0.00049984 +/-    0.0000
Ecliptic ZDOT         0.00125808 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   62.56656349 +/-    0.0153
Geocenter to KBO     61.62426216 +/-    0.0201
# Hcoef:  7.26

The following table shows the complete astrometric record for 17VO34. 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 (17VO34) followed by the observatory code and reference code for the source of the astrometry.

2017 11  15.25534  04 13 24.330  +05 50 20.38  25.0r 17VO34    807  C~31M0      
2017 11  16.25421  04 13 20.846  +05 50 12.57  24.9r 17VO34    807  C~31M0      
2018 12  03.13748  04 14 02.587  +06 17 28.06        17VO34    304  C~31M0      
2018 12  03.29177  04 14 02.028  +06 17 27.47        17VO34    304  C~31M0      
2018 12  04.08329  04 13 59.197  +06 17 24.69  25.0r 17VO34    304  C~31M0      
2018 12  04.16667  04 13 58.917  +06 17 24.19        17VO34    304  C~31M0      
2018 12  11.12472  04 13 34.358  +06 17 07.34        17VO34    304  C~31M0      
2018 12  12.23953  04 13 30.477  +06 17 05.97  25.0r 17VO34    304  C~31M0      
2019 11  29.26449  04 15 59.083  +06 46 50.65  25.4r 17VO34    304  C~3d0A      
2019 11  30.25964  04 15 55.491  +06 46 46.03  25.3r 17VO34    304  C~3d0A      

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    -0.04       0.00    -0.14
     2   0.0027    -52.54     0.05       1.93     0.13
     3   1.0483    861.38     0.04    1494.37    -0.01
     4   1.0487    853.08     0.03    1495.32    -0.02
     5   1.0509    811.08    -0.20    1500.38     0.08
     6   1.0511    806.89     0.08    1500.66    -0.19
     7   1.0701    443.89     0.04    1551.70     0.05
     8   1.0732    386.77    -0.00    1561.04     0.11
     9   2.0370   2892.56     0.04    2907.69    -0.04
    10   2.0397   2839.11    -0.03    2912.96     0.03

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.

17VO34    quality flag:2

Type:       SCATNEAR  CENTAURR  SCATNEAR

axisobj        52.562    53.133    52.044
ecceobj         0.321     0.333     0.310
incobj         40.519    40.527    40.511
qmin           34.262    28.657    34.272
qmax           71.225    78.560    70.143
amean          52.374    52.968    51.790
amin           51.834    52.276    51.245
amax           53.047    53.887    52.469
emean           0.321     0.411     0.307
emin            0.301     0.332     0.277
emax            0.343     0.461     0.337
imean          39.355    36.856    39.399
imin           38.771    35.074    38.730
imax           39.932    39.360    40.081
excite_mean     0.711     0.728     0.705
fracstop        1.000     0.693     1.000
cjmean          2.508     2.501     2.511

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       182.4     134.4     179.1
kozaiamp        180.0      45.3     180.0