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: 15RQ279
# Created Wed May 8 01:17:18 2024
# Orbit generated from Bernstein formalism
# Fitting 35 observations of 35
# Arc: 2.44y
# First observation: 2015/07/14
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000223 0.022726 0.000010 0.001079 0.023174 0.000000
# Chi-squared of fit: 7.41 DOF: 64 RMS: 0.08
# Min/Max residuals: -0.28 0.18
# Exact a, adot, b, bdot, g, gdot:
1.602784E-05 2.267821E-02 1.191189E-06 1.086384E-03 2.325830E-02 4.068151E-03
# Covariance matrix:
1.8711E-13 4.7588E-14 -3.2360E-15 7.9697E-15 1.6957E-13 3.1750E-12
4.7588E-14 3.0765E-13 -6.4145E-15 2.0108E-14 2.4873E-13 8.3607E-12
-3.2360E-15 -6.4145E-15 8.7748E-14 -5.9579E-14 -7.1910E-15 -2.2728E-13
7.9697E-15 2.0108E-14 -5.9579E-14 7.7349E-14 2.0164E-14 7.4113E-13
1.6957E-13 2.4873E-13 -7.1910E-15 2.0164E-14 3.2706E-13 8.2324E-12
3.1750E-12 8.3607E-12 -2.2728E-13 7.4113E-13 8.2324E-12 3.0999E-10
# lat0 lon0 xBary yBary zBary JD0
0.997520 9.489420 0.994343 0.003862 -0.216160 2457218.034449
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 56.03842 +/- 0.025
Argument of Peri: 305.84548 +/- 0.072
Long of Asc Node: 348.43735 +/- 0.005
Inclination: 2.93696 +/- 0.001
Eccentricity: 0.16856408 +/- 0.0008
Semi-Major Axis: 46.56119159 +/- 0.0128
Time of Perihelion: 2439146.3325 +/- 3.3
Perihelion: 38.71264737 +/- 0.0378
Aphelion: 54.40973581 +/- 0.0392
Period (y) 317.7198 +/- 0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.77422728 +/- 0.0010
Ecliptic Y 6.14268622 +/- 0.0002
Ecliptic Z 0.74861802 +/- 0.0000
Ecliptic XDOT 0.00002766 +/- 0.0000
Ecliptic YDOT 0.00270532 +/- 0.0000
Ecliptic ZDOT 0.00013626 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.21952732 +/- 0.0010
Geocenter to KBO 42.99540677 +/- 0.0011
# Hcoef: 8.03
The following table shows the complete astrometric record for 15RQ279. 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 (15RQ279) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.53366 00 33 18.104 +04 40 38.01 25.0r 15RQ279 568 C~2nvn 2015 07 19.49853 00 33 15.494 +04 40 32.17 24.1r 15RQ279 568 C~2nvn 2015 08 11.49021 00 32 38.079 +04 37 19.60 24.0r 15RQ279 568 C~2nvn 2015 08 11.53270 00 32 37.993 +04 37 18.71 24.5r 15RQ279 568 C~2nvn 2015 08 11.55462 00 32 37.929 +04 37 18.75 24.5r 15RQ279 568 C~2nvn 2015 09 08.39679 00 31 06.501 +04 28 17.71 24.1r 15RQ279 568 C~2nvn 2015 09 08.50096 00 31 06.063 +04 28 15.35 24.8r 15RQ279 568 C~2nvn 2015 09 08.54456 00 31 05.889 +04 28 14.19 24.6r 15RQ279 568 C~2nvn 2015 09 09.52009 00 31 02.021 +04 27 50.59 24.5w 15RQ279 568 C~2nvn 2015 09 10.46103 00 30 58.256 +04 27 27.68 24.8w 15RQ279 568 C~2nvn 2015 09 16.44783 00 30 33.673 +04 24 57.14 24.6w 15RQ279 568 C~2nvn 2015 10 03.37463 00 29 20.683 +04 17 23.01 24.5w 15RQ279 568 C~2nvn 2015 10 07.34146 00 29 03.401 +04 15 34.07 24.3r 15RQ279 568 C~2nvn 2015 10 07.35040 00 29 03.365 +04 15 33.99 24.4r 15RQ279 568 C~2nvn 2015 10 07.39951 00 29 03.158 +04 15 32.61 24.2r 15RQ279 568 C~2nvn 2015 11 07.23924 00 27 01.445 +04 02 32.60 24.7w 15RQ279 568 C~2nvn 2015 11 07.29177 00 27 01.265 +04 02 31.48 24.5w 15RQ279 568 C~2nvn 2015 11 10.36966 00 26 51.337 +04 01 26.56 24.5w 15RQ279 568 C~2nvn 2015 12 07.31568 00 25 52.128 +03 54 48.18 25.1w 15RQ279 568 C~2nvn 2016 01 01.24474 00 25 50.455 +03 54 14.65 24.7w 15RQ279 568 C~2nvn 2016 09 05.58308 00 35 59.477 +05 03 36.32 24.5w 15RQ279 568 C~2nvn 2016 09 06.53219 00 35 55.841 +05 03 14.36 24.5w 15RQ279 568 C~2nvn 2016 09 06.57428 00 35 55.672 +05 03 13.36 24.6w 15RQ279 568 C~2nvn 2016 09 26.55688 00 34 32.858 +04 54 46.66 24.3w 15RQ279 568 C~2nvn 2016 11 03.39726 00 31 56.740 +04 38 17.37 24.6w 15RQ279 568 C~2nvn 2016 11 03.46220 00 31 56.515 +04 38 15.78 24.7w 15RQ279 568 C~2nvn 2016 12 29.23783 00 30 27.697 +04 28 02.40 24.4w 15RQ279 568 C~2nvn 2017 01 03.20730 00 30 32.366 +04 28 27.10 24.5w 15RQ279 568 C~2nvn 2017 01 03.25288 00 30 32.418 +04 28 27.45 24.5w 15RQ279 568 C~2nvn 2017 01 30.22034 00 31 34.395 +04 34 39.69 25.0w 15RQ279 568 C~2nvn 2017 05 30.59780 00 41 21.471 +05 38 19.53 24.3w 15RQ279 568 C~2nvn 2017 05 30.60776 00 41 21.515 +05 38 19.76 24.8w 15RQ279 568 C~2nvn 2017 09 16.51863 00 40 00.512 +05 33 27.95 24.6w 15RQ279 568 C~2nvn 2017 09 22.47204 00 39 35.523 +05 30 55.63 24.6w 15RQ279 568 C~2nvn 2017 12 23.31121 00 35 03.666 +05 01 36.23 24.4w 15RQ279 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 -0.13 0.00 -0.09
2 0.0136 -38.17 0.16 9.99 0.04
3 0.0765 -628.18 -0.11 53.24 0.13
4 0.0767 -629.72 0.07 52.93 -0.28
5 0.0767 -630.58 0.10 53.34 0.09
6 0.1529 -2100.34 0.18 94.88 -0.10
7 0.1532 -2107.29 -0.02 95.29 0.14
8 0.1533 -2110.14 -0.04 95.25 0.03
9 0.1560 -2172.60 -0.03 96.38 -0.01
10 0.1586 -2233.39 -0.07 97.53 0.05
11 0.1750 -2630.65 0.03 104.21 0.14
12 0.2213 -3813.25 -0.03 117.85 0.03
13 0.2322 -4093.87 -0.18 119.86 -0.12
14 0.2322 -4094.40 -0.07 120.00 0.01
15 0.2324 -4097.79 0.06 119.96 -0.09
16 0.3168 -6079.94 0.04 123.23 -0.00
17 0.3169 -6082.86 0.02 123.26 0.02
18 0.3254 -6245.12 0.03 122.41 0.02
19 0.3991 -7217.49 0.01 107.18 0.02
20 0.4674 -7253.80 0.02 86.29 0.10
21 1.1473 2759.70 0.03 318.99 0.04
22 1.1499 2701.11 -0.00 320.13 -0.02
23 1.1500 2698.39 -0.06 320.20 -0.02
24 1.2047 1361.18 -0.03 340.59 -0.00
25 1.3083 -1173.51 -0.01 349.84 -0.02
26 1.3085 -1177.23 0.08 349.71 -0.16
27 1.4612 -2639.69 -0.01 309.72 -0.03
28 1.4748 -2565.77 -0.06 304.87 -0.06
29 1.4749 -2564.92 -0.00 304.88 -0.02
30 1.5488 -1566.37 -0.04 281.47 0.12
31 1.8783 8004.15 -0.04 351.94 0.02
32 1.8784 8004.84 0.11 351.89 -0.05
33 2.1766 6776.19 -0.03 556.20 -0.03
34 2.1928 6372.84 -0.08 562.01 0.03
35 2.4443 1945.55 0.11 536.20 0.09
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.
15RQ279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.065 47.105 47.027 ecceobj 0.173 0.175 0.171 incobj 2.924 2.925 2.924 qmin 38.203 38.132 38.250 qmax 55.904 56.070 55.723 amean 46.821 46.861 46.782 amin 46.408 46.450 46.378 amax 47.296 47.355 47.256 emean 0.168 0.170 0.166 emin 0.154 0.156 0.152 emax 0.182 0.184 0.179 imean 3.752 3.748 3.755 imin 3.211 3.211 3.214 imax 4.257 4.265 4.251 excite_mean 0.180 0.182 0.178 fracstop 1.000 1.000 1.000 cjmean 3.096 3.095 3.096 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 176.6 176.4 176.6 kozaiamp 180.0 180.0 180.0