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: 16GV392
# Created Wed Nov 27 02:10:38 2024
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 6.13d
# First observation: 2016/04/02
# Last observation: 2016/04/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.034035 0.000000 -0.014333 0.027589 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 5.60 DOF: 15 RMS: 0.13
# Min/Max residuals: -0.35 0.21
# Exact a, adot, b, bdot, g, gdot:
1.243979E-05 2.024601E-02 -8.948924E-06 -1.445680E-02 2.535612E-02 8.039144E-03
# Covariance matrix:
1.2491E-10 1.9574E-07 6.4158E-13 1.6565E-09 3.1850E-08 -2.4266E-07
1.9574E-07 3.0736E-04 1.0072E-09 2.6011E-06 5.0006E-05 -3.8235E-04
6.4158E-13 1.0072E-09 2.2490E-13 -8.2175E-12 1.6388E-10 -1.2243E-09
1.6565E-09 2.6011E-06 -8.2175E-12 2.5779E-08 4.2318E-07 -3.3012E-06
3.1850E-08 5.0006E-05 1.6388E-10 4.2318E-07 8.1361E-06 -6.2101E-05
-2.4266E-07 -3.8235E-04 -1.2243E-09 -3.3012E-06 -6.2101E-05 7.7380E-04
# lat0 lon0 xBary yBary zBary JD0
2.123914 -177.412152 -0.176250 0.036455 -0.979214 2457480.897709
# Heliocentric elements and errors
Epoch: 2457480.5000 = 2016/04/02
Mean Anomaly: 55.57331 +/- 59.663
Argument of Peri: 84.16090 +/- 134.591
Long of Asc Node: 5.74407 +/- 2.566
Inclination: 35.53837 +/- 23.744
Eccentricity: 0.32316590 +/- 1.0637
Semi-Major Axis: 44.55690466 +/- 22.2735
Time of Perihelion: 2440710.4376 +/- 12885.2
Perihelion: 30.15763260 +/- 49.7350
Aphelion: 58.95617672 +/- 55.8110
Period (y) 297.4272 +/- 223.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.34562027 +/- 4.4290
Ecliptic Y -2.00230579 +/- 0.1998
Ecliptic Z 1.46128289 +/- 0.1644
Ecliptic XDOT -0.00082553 +/- 0.0031
Ecliptic YDOT -0.00223261 +/- 0.0015
Ecliptic ZDOT -0.00152774 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 40.42169777 +/- 4.4207
Geocenter to KBO 39.43821054 +/- 4.4365
# Hcoef: 9.85
The following table shows the complete astrometric record for 16GV392. 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 (16GV392) followed by the observatory code and reference code for the source of the astrometry.
2016 04 02.39692 12 12 52.47 +00 55 11.7 25.6i 16GV392 T09 C~8Mck 2016 04 02.47177 12 12 52.08 +00 55 13.6 25.3i 16GV392 T09 C~8Mck 2016 04 02.47448 12 12 52.09 +00 55 13.6 25.6i 16GV392 T09 C~8Mck 2016 04 02.49633 12 12 51.97 +00 55 13.9 25.4i 16GV392 T09 C~8Mck 2016 04 02.52059 12 12 51.85 +00 55 14.6 24.8i 16GV392 T09 C~8Mck 2016 04 04.35168 12 12 42.80 +00 55 55.9 26.5g 16GV392 T09 C~8Mck 2016 04 04.39376 12 12 42.58 +00 55 56.5 26.2g 16GV392 T09 C~8Mck 2016 04 04.41084 12 12 42.49 +00 55 57.2 26.4g 16GV392 T09 C~8Mck 2016 04 08.50734 12 12 22.49 +00 57 27.2 26.5r 16GV392 T09 C~8Mck 2016 04 08.52637 12 12 22.40 +00 57 27.9 26.2r 16GV392 T09 C~8Mck
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 -0.01
2 0.0002 -6.12 -0.21 -0.58 0.10
3 0.0002 -5.98 0.14 -0.52 0.18
4 0.0003 -7.76 0.09 -0.96 -0.06
5 0.0003 -9.69 0.06 -1.03 0.09
6 0.0054 -150.65 -0.01 -17.08 0.02
7 0.0055 -153.92 0.00 -17.84 -0.35
8 0.0055 -155.43 -0.18 -17.73 -0.09
9 0.0167 -466.46 0.06 -54.35 -0.07
10 0.0168 -467.97 -0.01 -54.24 0.21
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.