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: 16QY134
# Created Sun Dec 22 02:10:45 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 14 observations of 14
# Arc: 6.01y
# First observation: 2016/08/24
# Last observation: 2022/08/27
# Chi-squared of fit: 3.26 DOF: 22 RMS: 0.09
# Min/Max residuals: -0.19 0.20
# Exact a, adot, b, bdot, g, gdot:
1.494448E-05 2.507058E-02 1.992806E-06 2.643320E-03 2.500692E-02 -3.510271E-03
# Covariance matrix:
5.0971E-13 -1.9984E-13 2.0734E-14 -1.4757E-14 3.8339E-13 -7.5994E-13
-1.9984E-13 5.4034E-13 -3.0014E-14 5.6400E-14 6.9029E-13 3.3058E-12
2.0734E-14 -3.0014E-14 2.2048E-13 -5.4042E-14 -1.1696E-14 -1.8230E-13
-1.4757E-14 5.6400E-14 -5.4042E-14 2.8658E-14 7.8626E-14 3.6118E-13
3.8339E-13 6.9029E-13 -1.1696E-14 7.8626E-14 2.2822E-12 4.8542E-12
-7.5994E-13 3.3058E-12 -1.8230E-13 3.6118E-13 4.8542E-12 2.1251E-11
# lat0 lon0 xBary yBary zBary JD0
8.751369 -25.134160 0.059594 0.153975 -0.999182 2457624.716499
# Heliocentric elements and errors
Epoch: 2457624.5000 = 2016/08/24
Mean Anomaly: 305.03379 +/- 0.039
Argument of Peri: 126.27526 +/- 0.047
Long of Asc Node: 280.08496 +/- 0.002
Inclination: 10.42280 +/- 0.000
Eccentricity: 0.15531320 +/- 0.0002
Semi-Major Axis: 44.10873269 +/- 0.0117
Time of Perihelion: 2473961.7363 +/- 37.9
Perihelion: 37.25806410 +/- 0.0141
Aphelion: 50.95940127 +/- 0.0168
Period (y) 292.9511 +/- 0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.66766699 +/- 0.0022
Ecliptic Y -17.27299019 +/- 0.0010
Ecliptic Z 6.08427776 +/- 0.0004
Ecliptic XDOT 0.00078361 +/- 0.0000
Ecliptic YDOT 0.00265800 +/- 0.0000
Ecliptic ZDOT 0.00022753 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.98657950 +/- 0.0020
Geocenter to KBO 39.98906287 +/- 0.0024
# Hcoef: 7.20
The following table shows the complete astrometric record for 16QY134. 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 (16QY134) followed by the observatory code and reference code for the source of the astrometry.
2016 08 24.21571 22 14 05.471 -01 34 10.81 22.9i 16QY134 W84 C~55Zc 2016 08 25.23640 22 14 00.725 -01 34 35.93 23.8r 16QY134 W84 C~55Zc 2016 08 30.20534 22 13 37.793 -01 36 41.62 24.1g 16QY134 W84 C~55Zc 2017 09 27.09709 22 16 47.738 -01 09 45.40 23.4r 16QY134 W84 C~55Zc 2017 10 21.06262 22 15 34.522 -01 20 03.58 23.8r 16QY134 W84 C~55Zc 2017 10 21.06399 22 15 34.523 -01 20 03.55 23.1i 16QY134 W84 C~55Zc 2017 10 22.05321 22 15 32.398 -01 20 26.13 24.1g 16QY134 W84 C~55Zc 2018 09 17.21497 22 22 39.498 -00 25 10.23 22.4i 16QY134 W84 C~55Zc 2018 09 17.22460 22 22 39.446 -00 25 10.51 22.0z 16QY134 W84 C~55Zc 2018 09 17.22734 22 22 39.431 -00 25 10.54 22.5i 16QY134 W84 C~55Zc 2018 09 17.22871 22 22 39.436 -00 25 10.62 23.2r 16QY134 W84 C~55Zc 2022 08 27.221090 22 45 26.121 +02 27 12.18 23.3G 16QY134 G37 C~5nKM 2022 08 27.275230 22 45 25.857 +02 27 10.67 16QY134 G37 C~5nKM 2022 08 27.321900 22 45 25.639 +02 27 09.64 16QY134 G37 C~5nKM
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 0.20 0.00 0.01
2 0.0028 0.00 -0.14 0.00 -0.02
3 0.0164 0.00 0.06 0.00 -0.19
4 1.0921 0.00 -0.02 0.00 0.04
5 1.1577 0.00 -0.11 0.00 0.06
6 1.1577 0.00 -0.04 0.00 0.12
7 1.1604 0.00 0.08 0.00 0.03
8 2.0643 0.00 0.09 0.00 0.00
9 2.0644 0.00 -0.06 0.00 -0.01
10 2.0644 0.00 -0.11 0.00 0.04
11 2.0644 0.00 0.05 0.00 0.00
12 6.0069 0.00 0.09 0.00 0.05
13 6.0070 0.00 -0.06 0.00 -0.12
14 6.0071 0.00 -0.03 0.00 0.01
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.
16QY134 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 44.431 44.431 44.431 ecceobj 0.161 0.161 0.161 incobj 10.439 10.439 10.439 qmin 36.452 36.389 36.412 qmax 52.706 52.643 52.617 amean 44.352 44.354 44.353 amin 43.975 43.972 43.989 amax 44.788 44.784 44.778 emean 0.160 0.160 0.160 emin 0.146 0.145 0.146 emax 0.177 0.177 0.176 imean 12.203 12.204 12.203 imin 11.406 11.399 11.400 imax 12.968 12.972 12.973 excite_mean 0.265 0.265 0.265 fracstop 1.000 1.000 1.000 cjmean 3.020 3.020 3.020 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 185.0 185.1 185.1 kozaiamp 180.0 180.0 180.0