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: 16PV298
# Created Wed Nov 27 02:10:40 2024
# Orbit generated from Bernstein formalism
# Fitting 23 observations of 23
# Arc: 36.99d
# First observation: 2016/07/03
# Last observation: 2016/08/09
Preliminary a, adot, b, bdot, g, gdot:
-0.000001 0.031885 0.000000 -0.006767 0.028040 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 4.42 DOF: 41 RMS: 0.08
# Min/Max residuals: -0.16 0.17
# Exact a, adot, b, bdot, g, gdot:
1.807855E-05 3.000747E-02 -3.393486E-06 -6.589725E-03 2.727077E-02 -3.033085E-03
# Covariance matrix:
2.3565E-13 -4.1275E-11 6.4114E-15 2.9880E-12 -1.3222E-11 -1.3772E-09
-4.1275E-11 4.5231E-08 -7.5781E-12 -3.9052E-09 1.7096E-08 2.6369E-06
6.4114E-15 -7.5781E-12 1.5944E-13 -1.4424E-12 -2.8730E-12 -4.4556E-10
2.9880E-12 -3.9052E-09 -1.4424E-12 3.8745E-10 -1.4922E-09 -2.3621E-07
-1.3222E-11 1.7096E-08 -2.8730E-12 -1.4922E-09 6.5271E-09 1.0311E-06
-1.3772E-09 2.6369E-06 -4.4556E-10 -2.3621E-07 1.0311E-06 1.7288E-04
# lat0 lon0 xBary yBary zBary JD0
2.563501 -7.182846 0.958188 0.015065 -0.334180 2457573.074099
# Heliocentric elements and errors
Epoch: 2457570.5000 = 2016/07/01
Mean Anomaly: 335.33493 +/- 55.945
Argument of Peri: 207.64817 +/- 102.195
Long of Asc Node: 182.73527 +/- 0.178
Inclination: 12.64019 +/- 0.193
Eccentricity: 0.23035092 +/- 0.2962
Semi-Major Axis: 46.05092516 +/- 5.5650
Time of Perihelion: 2465391.0233 +/- 17681.7
Perihelion: 35.44305214 +/- 14.2985
Aphelion: 56.65879818 +/- 15.2638
Period (y) 312.5113 +/- 56.65
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.55357090 +/- 0.1077
Ecliptic Y -5.57493034 +/- 0.0136
Ecliptic Z 1.64002801 +/- 0.0049
Ecliptic XDOT 0.00010520 +/- 0.0013
Ecliptic YDOT 0.00301628 +/- 0.0002
Ecliptic ZDOT -0.00067454 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 37.01260712 +/- 0.1064
Geocenter to KBO 36.66929961 +/- 0.1086
# Hcoef: 8.20
The following table shows the complete astrometric record for 16PV298. 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 (16PV298) followed by the observatory code and reference code for the source of the astrometry.
2016 07 03.57331 23 29 34.01 -00 29 44.4 24.1r 16PV298 T09 C~89Tz 2016 07 03.58369 23 29 34.01 -00 29 44.2 24.3r 16PV298 T09 C~89Tz 2016 07 03.59409 23 29 34.00 -00 29 44.4 24.1r 16PV298 T09 C~89Tz 2016 07 03.60455 23 29 33.99 -00 29 44.4 24.3r 16PV298 T09 C~89Tz 2016 07 07.53078 23 29 29.84 -00 30 09.9 25.3g 16PV298 T09 C~89Tz 2016 07 07.54078 23 29 29.83 -00 30 10.1 25.3g 16PV298 T09 C~89Tz 2016 07 07.55077 23 29 29.82 -00 30 10.2 25.3g 16PV298 T09 C~89Tz 2016 07 07.56088 23 29 29.81 -00 30 10.2 25.2g 16PV298 T09 C~89Tz 2016 07 12.53976 23 29 22.51 -00 30 56.6 23.5z 16PV298 T09 C~89Tz 2016 07 12.55404 23 29 22.50 -00 30 56.6 23.3z 16PV298 T09 C~89Tz 2016 07 12.56833 23 29 22.46 -00 30 56.9 23.4z 16PV298 T09 C~89Tz 2016 07 12.58266 23 29 22.45 -00 30 57.1 23.3z 16PV298 T09 C~89Tz 2016 07 29.54752 23 28 41.75 -00 35 24.4 23.5z 16PV298 T09 C~89Tz 2016 07 29.56202 23 28 41.71 -00 35 24.7 23.4z 16PV298 T09 C~89Tz 2016 07 29.57647 23 28 41.67 -00 35 25.0 23.4z 16PV298 T09 C~89Tz 2016 07 29.59087 23 28 41.62 -00 35 25.4 23.6z 16PV298 T09 C~89Tz 2016 08 01.43571 23 28 32.62 -00 36 25.7 23.2z 16PV298 T09 C~89Tz 2016 08 01.53573 23 28 32.28 -00 36 27.8 23.3z 16PV298 T09 C~89Tz 2016 08 01.55739 23 28 32.21 -00 36 28.4 23.4z 16PV298 T09 C~89Tz 2016 08 01.58729 23 28 32.11 -00 36 29.0 23.0z 16PV298 T09 C~89Tz 2016 08 09.42245 23 28 04.39 -00 39 36.6 23.7y 16PV298 T09 C~89Tz 2016 08 09.50129 23 28 04.08 -00 39 38.6 24.0y 16PV298 T09 C~89Tz 2016 08 09.56495 23 28 03.82 -00 39 40.3 23.5y 16PV298 T09 C~89Tz
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 -0.14 0.00 -0.09
2 0.0000 0.08 0.10 0.18 0.09
3 0.0001 -0.14 0.04 0.06 -0.05
4 0.0001 -0.28 0.06 0.12 0.00
5 0.0108 -67.53 -0.07 1.26 0.16
6 0.0109 -67.75 -0.07 1.13 0.03
7 0.0109 -67.93 -0.04 1.10 -0.01
8 0.0109 -68.07 0.04 1.16 0.04
9 0.0245 -186.99 -0.10 1.74 -0.03
10 0.0246 -187.12 0.17 1.80 0.02
11 0.0246 -187.79 -0.09 1.76 -0.02
12 0.0247 -188.01 0.11 1.63 -0.16
13 0.0711 -854.43 -0.11 -3.05 0.05
14 0.0712 -855.10 -0.03 -3.09 0.02
15 0.0712 -855.76 0.05 -3.12 -0.02
16 0.0712 -856.61 -0.06 -3.20 -0.09
17 0.0790 -1004.45 0.05 -5.33 -0.03
18 0.0793 -1009.96 0.03 -5.25 0.08
19 0.0794 -1011.16 0.03 -5.38 -0.05
20 0.0794 -1012.78 0.06 -5.34 0.00
21 0.1009 -1468.86 0.09 -13.65 -0.03
22 0.1011 -1473.92 0.04 -13.65 0.03
23 0.1013 -1478.17 -0.16 -13.67 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.