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: 15RS280
# Created Fri Apr 19 01:17:41 2024
# Orbit generated from Bernstein formalism
# Fitting 33 observations of 33
# Arc: 2.36y
# First observation: 2015/07/14
# Last observation: 2017/11/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000106 0.021826 -0.000003 -0.013596 0.025310 0.000000
# Chi-squared of fit: 14.55 DOF: 60 RMS: 0.12
# Min/Max residuals: -0.34 0.40
# Exact a, adot, b, bdot, g, gdot:
1.317880E-05 2.155665E-02 -8.568187E-06 -1.347131E-02 2.517262E-02 6.538293E-04
# Covariance matrix:
1.6022E-13 2.2020E-14 9.3771E-15 -6.3224E-14 1.4893E-13 2.5538E-12
2.2020E-14 2.4489E-13 2.7555E-14 -1.5905E-13 2.2184E-13 6.3710E-12
9.3771E-15 2.7555E-14 9.9019E-14 -1.1203E-13 3.4228E-14 1.7767E-12
-6.3224E-14 -1.5905E-13 -1.1203E-13 3.3506E-13 -2.0634E-13 -9.5096E-12
1.4893E-13 2.2184E-13 3.4228E-14 -2.0634E-13 3.4638E-13 8.2859E-12
2.5538E-12 6.3710E-12 1.7767E-12 -9.5096E-12 8.2859E-12 3.7918E-10
# lat0 lon0 xBary yBary zBary JD0
3.046884 8.591303 0.990546 0.012486 -0.232589 2457218.104959
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 7.13041 +/- 1.426
Argument of Peri: 166.70037 +/- 1.515
Long of Asc Node: 192.00674 +/- 0.000
Inclination: 32.10456 +/- 0.001
Eccentricity: 0.02945543 +/- 0.0001
Semi-Major Axis: 41.16973355 +/- 0.0025
Time of Perihelion: 2455299.4268 +/- 382.3
Perihelion: 39.95706138 +/- 0.0061
Aphelion: 42.38240572 +/- 0.0061
Period (y) 264.1650 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 39.59917282 +/- 0.0009
Ecliptic Y 4.98164468 +/- 0.0001
Ecliptic Z 2.11125170 +/- 0.0000
Ecliptic XDOT -0.00020531 +/- 0.0000
Ecliptic YDOT 0.00233422 +/- 0.0000
Ecliptic ZDOT -0.00145927 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.96709466 +/- 0.0009
Geocenter to KBO 39.72569694 +/- 0.0009
# Hcoef: 8.83
The following table shows the complete astrometric record for 15RS280. 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 (15RS280) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.60417 00 26 44.302 +06 12 21.93 24.5r 15RS280 568 C~2nvr 2015 07 19.58328 00 26 41.175 +06 11 44.99 25.2r 15RS280 568 C~2nvr 2015 08 13.47579 00 25 54.448 +06 05 06.05 24.4r 15RS280 568 C~2nvr 2015 08 13.52928 00 25 54.302 +06 05 05.13 24.4r 15RS280 568 C~2nvr 2015 08 19.53845 00 25 36.030 +06 02 38.47 23.7r 15RS280 568 C~2nvr 2015 08 19.57979 00 25 35.886 +06 02 37.38 24.6r 15RS280 568 C~2nvr 2015 08 20.41299 00 25 33.172 +06 02 15.76 25.1r 15RS280 568 C~2nvr 2015 08 20.46234 00 25 33.010 +06 02 14.57 24.7r 15RS280 568 C~2nvr 2015 09 07.55863 00 24 24.490 +05 53 10.16 25.1w 15RS280 568 C~2nvr 2015 09 09.38473 00 24 16.776 +05 52 08.44 24.6r 15RS280 568 C~2nvr 2015 09 09.42909 00 24 16.574 +05 52 06.88 25.1r 15RS280 568 C~2nvr 2015 09 09.47005 00 24 16.400 +05 52 05.43 24.6r 15RS280 568 C~2nvr 2015 09 10.49367 00 24 12.008 +05 51 30.50 25.4w 15RS280 568 C~2nvr 2015 09 18.45161 00 23 36.842 +05 46 48.13 26.8w 15RS280 568 C~2nvr 2015 10 08.33928 00 22 05.501 +05 34 15.05 24.8w 15RS280 568 C~2nvr 2015 10 08.39191 00 22 05.263 +05 34 12.99 25.2w 15RS280 568 C~2nvr 2015 11 10.43470 00 19 52.993 +05 14 13.41 24.9w 15RS280 568 C~2nvr 2015 12 08.23353 00 18 55.247 +05 02 19.46 24.9w 15RS280 568 C~2nvr 2016 01 01.29622 00 19 01.551 +04 57 51.99 25.1w 15RS280 568 C~2nvr 2016 09 05.48640 00 30 22.533 +05 40 22.85 15RS280 568 C~2nvr 2016 09 05.49854 00 30 22.474 +05 40 22.34 15RS280 568 C~2nvr 2016 09 06.44060 00 30 18.619 +05 39 51.16 15RS280 568 C~2nvr 2016 09 06.45273 00 30 18.565 +05 39 50.33 15RS280 568 C~2nvr 2016 09 26.45157 00 28 50.057 +05 27 52.73 24.8w 15RS280 568 C~2nvr 2016 09 26.45563 00 28 50.031 +05 27 52.63 25.1w 15RS280 568 C~2nvr 2016 10 30.35270 00 26 20.778 +05 06 41.51 15RS280 568 C~2nvr 2016 11 03.31006 00 26 05.926 +05 04 24.78 25.4w 15RS280 568 C~2nvr 2016 11 03.36248 00 26 05.727 +05 04 22.99 25.1w 15RS280 568 C~2nvr 2016 12 24.26796 00 24 38.505 +04 45 31.22 25.5w 15RS280 568 C~2nvr 2017 01 02.25760 00 24 47.481 +04 44 46.00 25.2w 15RS280 568 C~2nvr 2017 01 26.24327 00 25 48.147 +04 46 47.97 24.8w 15RS280 568 C~2nvr 2017 09 22.50999 00 35 02.033 +05 16 46.77 25.0w 15RS280 568 C~2nvr 2017 11 22.36828 00 30 57.915 +04 41 26.42 15RS280 568 C~2nvr
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 0.07 0.00 0.02
2 0.0136 -57.44 -0.00 -15.48 0.04
3 0.0818 -855.32 -0.30 -105.99 0.04
4 0.0819 -857.69 -0.04 -105.98 0.25
5 0.0984 -1166.04 0.08 -132.70 -0.13
6 0.0985 -1168.44 -0.01 -132.85 -0.12
7 0.1008 -1214.18 -0.04 -136.66 -0.02
8 0.1009 -1216.87 0.06 -136.80 0.05
9 0.1505 -2371.26 0.01 -231.43 0.05
10 0.1555 -2501.42 0.08 -242.43 -0.01
11 0.1556 -2504.81 -0.06 -242.67 -0.01
12 0.1557 -2507.77 -0.02 -242.97 -0.08
13 0.1585 -2581.79 0.04 -249.04 0.04
14 0.1803 -3175.64 0.03 -300.00 0.06
15 0.2347 -4726.59 -0.08 -449.56 -0.01
16 0.2349 -4730.67 -0.00 -450.04 -0.08
17 0.3253 -7022.04 -0.01 -764.71 -0.34
18 0.4014 -8099.30 0.14 -1075.99 -0.01
19 0.4673 -8119.60 -0.08 -1359.07 0.16
20 1.1468 2233.77 0.11 -3049.11 0.11
21 1.1469 2232.76 -0.04 -3049.23 0.06
22 1.1494 2167.57 0.19 -3055.21 0.07
23 1.1495 2166.50 -0.02 -3055.65 -0.31
24 1.2042 668.98 0.05 -3193.78 -0.08
25 1.2042 668.58 -0.02 -3193.72 0.01
26 1.2971 -1881.98 -0.21 -3480.26 0.40
27 1.3079 -2139.94 0.08 -3518.02 0.03
28 1.3080 -2143.38 0.03 -3518.49 0.03
29 1.4474 -3789.30 -0.06 -4041.70 -0.24
30 1.4720 -3684.01 0.09 -4136.44 0.09
31 1.5377 -2802.67 0.07 -4383.72 -0.01
32 2.1928 5516.84 -0.02 -5994.82 -0.09
33 2.3594 1325.97 -0.11 -6509.64 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.
15RS280 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.501 41.510 41.491 ecceobj 0.037 0.038 0.037 incobj 31.960 31.961 31.960 qmin 39.411 39.388 39.415 qmax 43.427 43.476 43.373 amean 41.329 41.339 41.320 amin 41.021 41.031 41.021 amax 41.639 41.654 41.623 emean 0.033 0.034 0.033 emin 0.024 0.024 0.023 emax 0.043 0.044 0.043 imean 32.085 32.085 32.085 imin 31.809 31.808 31.817 imax 32.378 32.377 32.369 excite_mean 0.532 0.532 0.532 fracstop 1.000 1.000 1.000 cjmean 2.713 2.713 2.713 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 187.6 188.9 185.8 kozaiamp 180.0 179.9 180.0