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: 16RP82 # Created Sun Nov 24 02:10:42 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 2.21y # First observation: 2016/09/09 # Last observation: 2018/11/26 Preliminary a, adot, b, bdot, g, gdot: 0.000093 0.030993 0.000016 0.010573 0.028753 0.000000 # Chi-squared of fit: 2.99 DOF: 30 RMS: 0.07 # Min/Max residuals: -0.19 0.12 # Exact a, adot, b, bdot, g, gdot: 1.706106E-05 3.106506E-02 6.221535E-06 1.063168E-02 2.865024E-02 -6.011505E-04 # Covariance matrix: 3.6284E-13 -1.1628E-13 8.9003E-15 -4.3581E-14 3.7588E-13 -1.7491E-12 -1.1628E-13 1.0462E-12 -1.0181E-13 4.0038E-13 7.2802E-13 1.7585E-11 8.9003E-15 -1.0181E-13 2.2846E-13 -1.8535E-13 -5.4210E-14 -2.1360E-12 -4.3581E-14 4.0038E-13 -1.8535E-13 3.3413E-13 1.9209E-13 8.5257E-12 3.7588E-13 7.2802E-13 -5.4210E-14 1.9209E-13 1.4690E-12 8.8428E-12 -1.7491E-12 1.7585E-11 -2.1360E-12 8.5257E-12 8.8428E-12 3.7204E-10 # lat0 lon0 xBary yBary zBary JD0 -6.177774 -0.921393 0.213286 -0.106068 -0.981518 2457640.651629 # Heliocentric elements and errors Epoch: 2457640.5000 = 2016/09/09 Mean Anomaly: 354.60518 +/- 0.139 Argument of Peri: 350.07724 +/- 0.209 Long of Asc Node: 15.72677 +/- 0.001 Inclination: 19.80375 +/- 0.001 Eccentricity: 0.19053644 +/- 0.0001 Semi-Major Axis: 44.25838660 +/- 0.0084 Time of Perihelion: 2459252.1324 +/- 41.7 Perihelion: 35.82555125 +/- 0.0093 Aphelion: 52.69122195 +/- 0.0119 Period (y) 294.4432 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.67661472 +/- 0.0015 Ecliptic Y -0.78971691 +/- 0.0000 Ecliptic Z -3.75591386 +/- 0.0002 Ecliptic XDOT 0.00010163 +/- 0.0000 Ecliptic YDOT 0.00296047 +/- 0.0000 Ecliptic ZDOT 0.00101623 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.88246619 +/- 0.0015 Geocenter to KBO 34.90371785 +/- 0.0015 # Hcoef: 7.38
The following table shows the complete astrometric record for 16RP82. 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 (16RP82) followed by the observatory code and reference code for the source of the astrometry.
2016 09 09.15084 00 06 29.135 -06 01 57.09 22.3i 16RP82 W84 C~55Zp 2016 09 09.15220 00 06 29.121 -06 01 56.99 22.5z 16RP82 W84 C~55Zp 2016 10 05.15829 00 04 12.250 -06 13 49.53 22.9r 16RP82 W84 C~55Zp 2016 10 05.15967 00 04 12.235 -06 13 49.69 22.9i 16RP82 W84 C~55Zp 2016 10 05.16105 00 04 12.221 -06 13 49.88 24.3g 16RP82 W84 C~55Zp 2016 11 05.06936 00 01 50.935 -06 22 47.47 22.6z 16RP82 W84 C~55Zp 2017 09 27.28723 00 10 28.986 -04 54 06.76 23.1r 16RP82 W84 C~55Zp 2017 09 27.28860 00 10 28.974 -04 54 06.80 22.3i 16RP82 W84 C~55Zp 2017 09 27.28997 00 10 28.961 -04 54 06.73 23.9g 16RP82 W84 C~55Zp 2017 10 13.23886 00 09 05.857 -05 00 45.33 22.6i 16RP82 W84 C~55Zp 2017 10 13.24022 00 09 05.853 -05 00 45.27 23.0r 16RP82 W84 C~55Zp 2017 10 28.14891 00 07 55.698 -05 05 29.32 22.2z 16RP82 W84 C~55Zp 2017 11 09.06704 00 07 09.035 -05 07 51.50 22.6r 16RP82 W84 C~55Zp 2017 11 09.06841 00 07 09.035 -05 07 51.40 23.4g 16RP82 W84 C~55Zp 2018 10 18.17681 00 14 15.445 -03 46 07.16 22.3z 16RP82 W84 C~55Zp 2018 10 18.17817 00 14 15.431 -03 46 07.20 22.7i 16RP82 W84 C~55Zp 2018 11 07.12755 00 12 47.869 -03 51 41.17 22.8r 16RP82 W84 C~55Zp 2018 11 26.08382 00 11 51.330 -03 53 24.23 23.4g 16RP82 W84 C~55Zp
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 0.02 0.00 -0.07
2 0.0000 -0.15 -0.02 0.18 0.10
3 0.0712 -2156.24 0.12 162.37 0.05
4 0.0712 -2156.51 -0.03 162.32 -0.02
5 0.0712 -2156.78 -0.19 162.23 -0.13
6 0.1558 -4303.57 0.08 508.56 0.12
7 1.0490 4913.44 0.07 2294.61 -0.04
8 1.0490 4913.26 0.00 2294.64 -0.01
9 1.0490 4913.11 -0.03 2294.79 0.12
10 1.0926 3615.00 0.00 2427.82 -0.08
11 1.0926 3614.97 0.08 2427.90 -0.01
12 1.1335 2540.44 -0.09 2587.65 -0.13
13 1.1661 1844.54 -0.04 2736.46 0.00
14 1.1661 1844.58 0.08 2736.55 0.07
15 2.1055 9662.51 0.07 4671.86 -0.00
16 2.1055 9662.31 -0.04 4671.91 0.03
17 2.1601 8325.39 -0.04 4893.11 -0.04
18 2.2120 7507.85 -0.01 5138.80 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.
16RP82 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 44.720 44.746 44.693 ecceobj 0.199 0.200 0.199 incobj 19.724 19.724 19.723 qmin 34.286 35.318 34.509 qmax 55.393 54.318 55.170 amean 44.507 44.554 44.572 amin 44.015 44.104 44.064 amax 45.123 45.050 45.109 emean 0.201 0.186 0.195 emin 0.178 0.161 0.166 emax 0.230 0.206 0.225 imean 19.349 19.744 19.357 imin 18.475 19.061 18.271 imax 20.082 20.258 20.274 excite_mean 0.388 0.386 0.385 fracstop 1.000 1.000 1.000 cjmean 2.924 2.925 2.927 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 169.8 168.3 172.9 kozaiamp 180.0 180.0 180.0