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: 16RM82 # Created Fri Nov 22 02:10:44 2024 # Orbit generated from Bernstein formalism # Fitting 16 observations of 16 # Arc: 2.98y # First observation: 2015/12/05 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: -0.000088 0.023415 0.000016 -0.008385 0.025085 0.000000 # Chi-squared of fit: 3.30 DOF: 26 RMS: 0.08 # Min/Max residuals: -0.30 0.13 # Exact a, adot, b, bdot, g, gdot: 1.522184E-05 2.332194E-02 -5.932673E-06 -8.354504E-03 2.433799E-02 1.249844E-03 # Covariance matrix: 6.4544E-13 -7.1337E-13 -1.3525E-13 2.1306E-13 -2.8356E-13 -6.9845E-12 -7.1337E-13 2.0756E-12 2.5002E-13 -7.4322E-13 -3.1615E-14 2.4691E-11 -1.3525E-13 2.5002E-13 3.0276E-13 -2.1143E-13 7.8925E-14 2.9980E-12 2.1306E-13 -7.4322E-13 -2.1143E-13 3.6658E-13 2.3725E-14 -9.2497E-12 -2.8356E-13 -3.1615E-14 7.8925E-14 2.3725E-14 4.0099E-13 -9.1642E-13 -6.9845E-12 2.4691E-11 2.9980E-12 -9.2497E-12 -9.1642E-13 3.0746E-10 # lat0 lon0 xBary yBary zBary JD0 -23.598502 -2.088166 -0.951237 -0.106474 -0.244296 2457361.651769 # Heliocentric elements and errors Epoch: 2457360.5000 = 2015/12/04 Mean Anomaly: 36.44337 +/- 0.181 Argument of Peri: 188.05857 +/- 0.251 Long of Asc Node: 130.58006 +/- 0.001 Inclination: 29.97192 +/- 0.000 Eccentricity: 0.10886670 +/- 0.0006 Semi-Major Axis: 45.07120476 +/- 0.0119 Time of Perihelion: 2446172.2240 +/- 55.3 Perihelion: 40.16445152 +/- 0.0299 Aphelion: 49.97795801 +/- 0.0309 Period (y) 302.5917 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.92415505 +/- 0.0010 Ecliptic Y -0.43163079 +/- 0.0000 Ecliptic Z -16.44885897 +/- 0.0004 Ecliptic XDOT -0.00015278 +/- 0.0000 Ecliptic YDOT 0.00262402 +/- 0.0000 Ecliptic ZDOT -0.00091748 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.33996617 +/- 0.0009 Geocenter to KBO 41.08802935 +/- 0.0011 # Hcoef: 6.91
The following table shows the complete astrometric record for 16RM82. 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 (16RM82) followed by the observatory code and reference code for the source of the astrometry.
2015 12 05.15098 00 31 58.571 -22 22 09.03 22.9i 16RM82 W84 C~55Zp 2015 12 05.15236 00 31 58.575 -22 22 08.97 23.2r 16RM82 W84 C~55Zp 2016 09 05.33188 00 44 01.484 -21 51 42.62 23.0r 16RM82 W84 C~55Zp 2016 09 05.33326 00 44 01.487 -21 51 43.08 24.1g 16RM82 W84 C~55Zp 2016 09 05.33464 00 44 01.479 -21 51 42.85 22.6i 16RM82 W84 C~55Zp 2016 09 07.20279 00 43 53.824 -21 53 03.45 21.6z 16RM82 W84 C~55Zp 2016 10 05.16972 00 41 45.682 -22 09 52.81 22.7i 16RM82 W84 C~55Zp 2016 10 05.17110 00 41 45.680 -22 09 52.75 23.4r 16RM82 W84 C~55Zp 2016 10 29.25182 00 39 55.027 -22 17 20.94 23.2r 16RM82 W84 C~55Zp 2016 11 04.11227 00 39 31.090 -22 17 58.07 24.0g 16RM82 W84 C~55Zp 2017 09 26.22911 00 48 37.039 -21 54 41.75 23.3r 16RM82 W84 C~55Zp 2017 09 26.23049 00 48 37.040 -21 54 41.81 22.6i 16RM82 W84 C~55Zp 2018 10 01.30608 00 54 19.688 -21 46 05.16 22.7z 16RM82 W84 C~55Zp 2018 11 15.20091 00 51 01.725 -21 57 12.08 22.5i 16RM82 W84 C~55Zp 2018 11 29.08376 00 50 20.173 -21 54 51.51 23.2r 16RM82 W84 C~55Zp 2018 11 29.08517 00 50 20.171 -21 54 51.48 24.0g 16RM82 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 -0.01 0.00 0.10
2 0.0000 0.08 0.08 0.03 0.09
3 0.7534 9836.31 -0.01 -2769.29 0.11
4 0.7534 9836.14 -0.08 -2769.72 -0.30
5 0.7534 9836.14 0.02 -2769.47 -0.03
6 0.7585 9704.48 0.03 -2793.84 -0.12
7 0.8351 7655.69 -0.06 -2902.19 -0.02
8 0.8351 7655.69 0.05 -2902.13 0.04
9 0.9010 6077.74 0.06 -2622.62 0.13
10 0.9171 5762.94 -0.09 -2509.17 -0.09
11 1.8099 13190.64 -0.05 -4664.34 0.06
12 1.8099 13190.62 0.04 -4664.40 -0.00
13 2.8231 17695.84 -0.01 -6403.60 -0.00
14 2.9461 14923.04 0.02 -5721.13 -0.02
15 2.9841 14470.41 -0.00 -5329.95 0.03
16 2.9841 14470.40 0.02 -5329.91 0.02
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.
16RM82 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.535 45.575 45.496 ecceobj 0.116 0.118 0.114 incobj 29.928 29.929 29.927 qmin 39.300 39.210 39.335 qmax 51.664 51.772 51.518 amean 45.311 45.352 45.276 amin 44.957 44.999 44.913 amax 45.708 45.745 45.674 emean 0.117 0.119 0.115 emin 0.104 0.106 0.102 emax 0.130 0.132 0.128 imean 28.446 28.444 28.448 imin 28.158 28.159 28.162 imax 28.743 28.733 28.741 excite_mean 0.491 0.491 0.490 fracstop 1.000 1.000 1.000 cjmean 2.807 2.807 2.807 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 185.9 185.5 186.0 kozaiamp 180.0 180.0 179.9