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: 15RP279 # Created Wed May 8 01:17:18 2024 # Orbit generated from Bernstein formalism # Fitting 35 observations of 35 # Arc: 2.19y # First observation: 2015/07/14 # Last observation: 2017/09/22 Preliminary a, adot, b, bdot, g, gdot: -0.000152 0.024306 -0.000000 0.000813 0.024214 0.000000 # Chi-squared of fit: 8.79 DOF: 64 RMS: 0.09 # Min/Max residuals: -0.21 0.26 # Exact a, adot, b, bdot, g, gdot: 1.563349E-05 2.397076E-02 4.935273E-07 8.060948E-04 2.407648E-02 1.360508E-03 # Covariance matrix: 1.7811E-13 -1.3412E-14 -5.2624E-16 2.8528E-15 1.2897E-13 1.9824E-12 -1.3412E-14 2.9468E-13 -2.4659E-15 1.1324E-14 1.9115E-13 7.7527E-12 -5.2624E-16 -2.4659E-15 1.0090E-13 -7.9451E-14 -2.1068E-15 -1.0525E-13 2.8528E-15 1.1324E-14 -7.9451E-14 1.0592E-13 1.0177E-14 4.7762E-13 1.2897E-13 1.9115E-13 -2.1068E-15 1.0177E-14 2.6474E-13 7.0009E-12 1.9824E-12 7.7527E-12 -1.0525E-13 4.7762E-13 7.0009E-12 3.2660E-10 # lat0 lon0 xBary yBary zBary JD0 -0.147099 8.773232 0.991547 -0.000488 -0.228674 2457218.038549 # Heliocentric elements and errors Epoch: 2457210.5000 = 2015/07/07 Mean Anomaly: 31.30620 +/- 0.538 Argument of Peri: 320.62917 +/- 0.622 Long of Asc Node: 11.75293 +/- 0.001 Inclination: 1.93132 +/- 0.001 Eccentricity: 0.05825179 +/- 0.0005 Semi-Major Axis: 43.91274864 +/- 0.0039 Time of Perihelion: 2447967.5171 +/- 158.8 Perihelion: 41.35475232 +/- 0.0212 Aphelion: 46.47074495 +/- 0.0212 Period (y) 291.0008 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.42188037 +/- 0.0009 Ecliptic Y 5.39025337 +/- 0.0001 Ecliptic Z -0.10655904 +/- 0.0000 Ecliptic XDOT -0.00026491 +/- 0.0000 Ecliptic YDOT 0.00271128 +/- 0.0000 Ecliptic ZDOT 0.00009133 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.77126237 +/- 0.0009 Geocenter to KBO 41.53430320 +/- 0.0009 # Hcoef: 8.06
The following table shows the complete astrometric record for 15RP279. 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 (15RP279) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.53776 00 32 28.139 +03 20 35.14 23.8r 15RP279 568 C~2nvn 2015 07 19.50263 00 32 25.433 +03 20 19.09 24.6r 15RP279 568 C~2nvn 2015 08 11.48475 00 31 46.888 +03 16 18.59 24.5r 15RP279 568 C~2nvn 2015 08 11.52861 00 31 46.777 +03 16 17.83 24.5r 15RP279 568 C~2nvn 2015 09 08.39268 00 30 12.412 +03 06 21.96 24.1r 15RP279 568 C~2nvn 2015 09 08.49686 00 30 11.976 +03 06 19.45 24.2r 15RP279 568 C~2nvn 2015 09 08.54047 00 30 11.794 +03 06 18.22 24.4r 15RP279 568 C~2nvn 2015 09 09.51600 00 30 07.798 +03 05 53.08 24.4w 15RP279 568 C~2nvn 2015 09 10.45696 00 30 03.924 +03 05 28.50 23.9w 15RP279 568 C~2nvn 2015 09 16.44258 00 29 38.606 +03 02 48.09 24.2w 15RP279 568 C~2nvn 2015 10 03.36936 00 28 23.390 +02 54 52.57 24.4w 15RP279 568 C~2nvn 2015 10 07.33735 00 28 05.599 +02 53 00.37 25.0r 15RP279 568 C~2nvn 2015 10 07.39541 00 28 05.343 +02 52 58.76 24.5r 15RP279 568 C~2nvn 2015 11 07.23400 00 26 00.341 +02 39 51.59 24.6w 15RP279 568 C~2nvn 2015 11 07.28647 00 26 00.155 +02 39 50.40 24.7w 15RP279 568 C~2nvn 2015 11 10.36441 00 25 50.004 +02 38 46.96 24.4w 15RP279 568 C~2nvn 2015 12 07.31039 00 24 49.816 +02 32 37.08 24.5w 15RP279 568 C~2nvn 2016 01 01.23954 00 24 49.177 +02 32 50.35 24.7w 15RP279 568 C~2nvn 2016 07 07.57912 00 37 26.085 +03 55 20.88 24.9w 15RP279 568 C~2nvn 2016 07 08.55858 00 37 26.349 +03 55 22.85 24.7w 15RP279 568 C~2nvn 2016 09 05.53271 00 35 24.153 +03 42 44.19 24.4w 15RP279 568 C~2nvn 2016 09 05.54486 00 35 24.103 +03 42 43.93 24.5w 15RP279 568 C~2nvn 2016 09 07.47209 00 35 16.445 +03 41 55.68 24.5w 15RP279 568 C~2nvn 2016 09 07.48422 00 35 16.397 +03 41 55.43 24.3w 15RP279 568 C~2nvn 2016 09 07.51840 00 35 16.258 +03 41 54.49 24.7w 15RP279 568 C~2nvn 2016 09 07.53054 00 35 16.205 +03 41 54.15 24.3w 15RP279 568 C~2nvn 2016 09 26.54877 00 33 54.569 +03 33 20.32 24.8w 15RP279 568 C~2nvn 2016 11 03.38568 00 31 13.652 +03 16 28.58 24.5w 15RP279 568 C~2nvn 2016 11 03.44362 00 31 13.418 +03 16 27.39 24.4w 15RP279 568 C~2nvn 2016 11 03.45063 00 31 13.400 +03 16 27.00 24.3w 15RP279 568 C~2nvn 2016 12 25.24114 00 29 40.903 +03 07 04.74 24.6w 15RP279 568 C~2nvn 2017 01 02.28800 00 29 47.250 +03 07 50.45 23.6w 15RP279 568 C~2nvn 2017 01 29.24345 00 30 50.256 +03 14 51.50 23.7w 15RP279 568 C~2nvn 2017 09 15.44947 00 39 47.872 +04 13 55.63 15RP279 568 C~2nvn 2017 09 22.51463 00 39 17.285 +04 10 44.26 24.8w 15RP279 568 C~2nvn
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 0.01
2 0.0136 -43.57 -0.05 1.20 -0.02
3 0.0765 -668.85 0.06 7.50 -0.01
4 0.0766 -670.68 0.09 7.45 -0.09
5 0.1529 -2204.49 0.03 16.83 -0.11
6 0.1532 -2211.49 0.05 17.10 0.07
7 0.1533 -2214.48 -0.00 17.05 -0.03
8 0.1560 -2279.40 -0.05 17.54 0.10
9 0.1586 -2342.42 -0.02 17.84 0.06
10 0.1750 -2754.24 0.21 19.99 -0.21
11 0.2213 -3977.49 -0.16 27.60 -0.06
12 0.2322 -4266.78 -0.11 29.71 0.15
13 0.2323 -4270.94 0.02 29.75 0.13
14 0.3168 -6303.76 0.02 46.26 0.05
15 0.3169 -6306.79 -0.06 46.27 0.01
16 0.3253 -6471.74 0.11 48.10 -0.03
17 0.3991 -7447.50 -0.07 64.85 0.06
18 0.4674 -7451.06 0.00 80.84 0.07
19 0.9830 4921.98 0.04 164.14 -0.05
20 0.9857 4926.39 -0.11 164.40 -0.09
21 1.1471 2945.78 -0.01 185.09 0.03
22 1.1472 2944.99 -0.01 185.14 0.08
23 1.1525 2820.59 -0.02 185.84 0.01
24 1.1525 2819.83 0.02 185.89 0.06
25 1.1526 2817.55 0.01 185.84 -0.02
26 1.1526 2816.69 -0.05 185.84 -0.03
27 1.2047 1490.85 0.03 194.03 -0.08
28 1.3083 -1122.39 0.04 212.79 -0.16
29 1.3084 -1126.08 -0.17 213.08 0.07
30 1.3085 -1126.48 -0.15 212.83 -0.19
31 1.4502 -2621.37 -0.09 242.28 0.15
32 1.4723 -2515.97 0.26 246.79 0.06
33 1.5461 -1482.67 0.09 261.66 -0.04
34 2.1736 7312.77 0.06 357.70 0.02
35 2.1930 6816.22 -0.02 360.96 0.04
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.
15RP279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.365 44.380 44.351 ecceobj 0.067 0.068 0.066 incobj 1.923 1.922 1.923 qmin 40.623 40.604 40.639 qmax 47.897 47.909 47.787 amean 44.126 44.141 44.111 amin 43.777 43.791 43.765 amax 44.497 44.514 44.477 emean 0.060 0.061 0.059 emin 0.044 0.045 0.043 emax 0.077 0.077 0.075 imean 2.273 2.275 2.271 imin 1.525 1.528 1.522 imax 2.898 2.898 2.896 excite_mean 0.072 0.073 0.071 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 188.4 188.4 188.1 kozaiamp 180.0 180.0 180.0