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: 15RY278
# Created Sun Nov 24 02:10:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 42 observations of 42
# Arc: 9.28y
# First observation: 2015/06/23
# Last observation: 2024/10/01
# Chi-squared of fit: 4.94 DOF: 78 RMS: 0.06
# Min/Max residuals: -0.21 0.18
# Exact a, adot, b, bdot, g, gdot:
1.688593E-05 2.894201E-02 5.374472E-07 4.421413E-04 2.715167E-02 4.294441E-04
# Covariance matrix:
1.3975E-13 -3.0252E-14 -2.6605E-16 -4.3203E-16 6.8466E-14 -7.8704E-14
-3.0252E-14 1.2868E-13 -2.4562E-15 2.1477E-15 9.0433E-14 4.6821E-13
-2.6605E-16 -2.4562E-15 5.0568E-14 -1.0353E-14 -2.4577E-15 -9.3696E-15
-4.3203E-16 2.1477E-15 -1.0353E-14 6.2354E-15 1.5060E-15 8.2122E-15
6.8466E-14 9.0433E-14 -2.4577E-15 1.5060E-15 1.4725E-13 3.4329E-13
-7.8704E-14 4.6821E-13 -9.3696E-15 8.2122E-15 3.4329E-13 1.7898E-12
# lat0 lon0 xBary yBary zBary JD0
0.636107 10.011200 1.005910 -0.001515 0.145135 2457197.098238
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 346.14783 +/- 0.044
Argument of Peri: 50.90696 +/- 0.050
Long of Asc Node: 332.98181 +/- 0.005
Inclination: 1.10062 +/- 0.000
Eccentricity: 0.05423821 +/- 0.0000
Semi-Major Axis: 38.72775857 +/- 0.0018
Time of Perihelion: 2460583.7514 +/- 12.4
Perihelion: 36.62723426 +/- 0.0022
Aphelion: 40.82828289 +/- 0.0024
Period (y) 241.0137 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.29554005 +/- 0.0005
Ecliptic Y 5.38681612 +/- 0.0001
Ecliptic Z 0.40896073 +/- 0.0000
Ecliptic XDOT -0.00046764 +/- 0.0000
Ecliptic YDOT 0.00287515 +/- 0.0000
Ecliptic ZDOT 0.00004513 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.69539326 +/- 0.0005
Geocenter to KBO 36.83015383 +/- 0.0005
# Hcoef: 7.96
The following table shows the complete astrometric record for 15RY278. 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 (15RY278) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59746 00 35 47.827 +04 33 00.49 23.9r 15RY278 568 C~2lVS 2015 07 14.54188 00 36 05.000 +04 35 20.07 23.6r 15RY278 568 C~2lVS 2015 07 19.50673 00 36 02.773 +04 35 12.78 23.9r 15RY278 568 C~2lVS 2015 08 11.49525 00 35 22.469 +04 31 25.83 23.6r 15RY278 568 C~2lVS 2015 08 11.53688 00 35 22.346 +04 31 25.23 23.7r 15RY278 568 C~2lVS 2015 09 08.40090 00 33 38.177 +04 20 46.87 23.6r 15RY278 568 C~2lVS 2015 09 08.50503 00 33 37.688 +04 20 43.96 23.7r 15RY278 568 C~2lVS 2015 09 08.54864 00 33 37.491 +04 20 42.77 23.4r 15RY278 568 C~2lVS 2015 09 09.52421 00 33 33.038 +04 20 14.92 23.8w 15RY278 568 C~2lVS 2015 09 10.46510 00 33 28.708 +04 19 47.85 23.8w 15RY278 568 C~2lVS 2015 09 16.45310 00 33 00.327 +04 16 50.10 23.5w 15RY278 568 C~2lVS 2015 10 07.34557 00 31 15.648 +04 05 47.25 23.2r 15RY278 568 C~2lVS 2015 10 07.36748 00 31 15.540 +04 05 46.44 23.7r 15RY278 568 C~2lVS 2015 10 07.40358 00 31 15.354 +04 05 45.25 23.6r 15RY278 568 C~2lVS 2015 12 07.32092 00 27 33.287 +03 41 32.87 23.7w 15RY278 568 C~2lVS 2016 01 01.24995 00 27 32.468 +03 41 04.59 24.0w 15RY278 568 C~2lVS 2016 09 05.53675 00 40 02.480 +05 03 19.93 23.7w 15RY278 568 C~2lVS 2016 09 05.58308 00 40 02.274 +05 03 18.64 23.6w 15RY278 568 C~2lVS 2016 09 06.53219 00 39 58.099 +05 02 52.84 23.8w 15RY278 568 C~2lVS 2016 09 06.57428 00 39 57.919 +05 02 51.77 24.0w 15RY278 568 C~2lVS 2016 09 07.47613 00 39 53.905 +05 02 26.98 23.8w 15RY278 568 C~2lVS 2016 09 07.52244 00 39 53.695 +05 02 25.75 23.9w 15RY278 568 C~2lVS 2016 09 27.48878 00 38 17.429 +04 52 24.89 23.8w 15RY278 568 C~2lVS 2016 11 03.39726 00 35 19.431 +04 33 28.23 23.6w 15RY278 568 C~2lVS 2016 11 03.42043 00 35 19.341 +04 33 27.64 23.9w 15RY278 568 C~2lVS 2016 11 03.46220 00 35 19.163 +04 33 26.46 23.8w 15RY278 568 C~2lVS 2016 11 04.26545 00 35 15.855 +04 33 04.91 23.8w 15RY278 568 C~2lVS 2016 11 04.32471 00 35 15.605 +04 33 03.37 23.8w 15RY278 568 C~2lVS 2016 12 29.23783 00 33 34.820 +04 21 34.42 23.9w 15RY278 568 C~2lVS 2017 01 03.20730 00 33 40.385 +04 22 05.25 23.3w 15RY278 568 C~2lVS 2017 01 03.25288 00 33 40.447 +04 22 05.39 23.9w 15RY278 568 C~2lVS 2017 01 27.23800 00 34 42.553 +04 28 20.71 23.9w 15RY278 568 C~2lVS 2017 01 28.23385 00 34 46.313 +04 28 43.96 23.9w 15RY278 568 C~2lVS 2017 01 30.24057 00 34 54.172 +04 29 32.58 23.9w 15RY278 568 C~2lVS 2017 09 17.40380 00 45 25.073 +05 39 14.05 23.8w 15RY278 568 C~2lVS 2017 09 22.45810 00 45 00.401 +05 36 41.24 23.9w 15RY278 568 C~2lVS 2017 11 22.37200 00 40 25.706 +05 07 30.73 24.0w 15RY278 568 C~2lVS 2017 12 23.28786 00 39 38.773 +05 02 03.61 24.0w 15RY278 568 C~2lVS 2017 12 23.30180 00 39 38.766 +05 02 03.55 24.0w 15RY278 568 C~2lVS 2024 10 01.387440 01 28 52.123 +10 15 06.72 23.5G 15RY278 G37 C~8HAJ 2024 10 01.431070 01 28 51.891 +10 15 05.46 15RY278 G37 C~8HAJ 2024 10 01.475260 01 28 51.652 +10 15 04.16 15RY278 G37 C~8HAJ
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 -0.06
2 0.0573 0.00 -0.02 0.00 -0.02
3 0.0709 0.00 0.07 0.00 -0.07
4 0.1339 0.00 0.01 0.00 0.03
5 0.1340 0.00 -0.05 0.00 0.11
6 0.2103 0.00 -0.03 0.00 -0.03
7 0.2106 0.00 -0.13 0.00 0.01
8 0.2107 0.00 -0.05 0.00 0.05
9 0.2134 0.00 -0.01 0.00 -0.00
10 0.2159 0.00 0.01 0.00 -0.01
11 0.2323 0.00 -0.01 0.00 -0.06
12 0.2895 0.00 0.05 0.00 0.08
13 0.2896 0.00 0.12 0.00 -0.03
14 0.2897 0.00 0.12 0.00 -0.06
15 0.4565 0.00 0.01 0.00 0.02
16 0.5247 0.00 0.06 0.00 -0.09
17 1.2045 0.00 0.00 0.00 0.04
18 1.2046 0.00 0.02 0.00 -0.00
19 1.2072 0.00 0.00 0.00 -0.03
20 1.2073 0.00 0.15 0.00 0.05
21 1.2098 0.00 -0.01 0.00 0.03
22 1.2099 0.00 0.01 0.00 0.08
23 1.2646 0.00 0.03 0.00 -0.03
24 1.3656 0.00 -0.08 0.00 -0.00
25 1.3657 0.00 0.04 0.00 0.04
26 1.3658 0.00 0.03 0.00 -0.01
27 1.3680 0.00 -0.05 0.00 -0.00
28 1.3682 0.00 -0.06 0.00 0.04
29 1.5185 0.00 0.01 0.00 -0.01
30 1.5321 0.00 -0.06 0.00 0.11
31 1.5323 0.00 -0.02 0.00 -0.10
32 1.5979 0.00 0.03 0.00 0.02
33 1.6006 0.00 -0.05 0.00 0.01
34 1.6061 0.00 0.05 0.00 0.05
35 2.2363 0.00 0.03 0.00 -0.02
36 2.2501 0.00 -0.02 0.00 0.01
37 2.4169 0.00 -0.07 0.00 -0.05
38 2.5015 0.00 0.10 0.00 0.06
39 2.5016 0.00 0.01 0.00 0.01
40 9.2753 0.00 0.18 0.00 0.01
41 9.2754 0.00 0.02 0.00 -0.00
42 9.2755 0.00 -0.21 0.00 -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.
15RY278 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 39.094 39.100 39.087 ecceobj 0.063 0.063 0.063 incobj 1.098 1.098 1.098 qmin 35.919 35.933 35.933 qmax 42.045 42.060 41.978 amean 38.880 38.886 38.874 amin 38.583 38.581 38.564 amax 39.200 39.215 39.179 emean 0.050 0.051 0.050 emin 0.025 0.025 0.025 emax 0.073 0.073 0.072 imean 3.599 3.599 3.598 imin 1.570 1.565 1.573 imax 5.115 5.116 5.111 excite_mean 0.082 0.082 0.082 fracstop 1.000 1.000 1.000 cjmean 3.040 3.040 3.040 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 182.6 181.8 182.8 kozaiamp 180.0 180.0 180.0