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: 15RL278
# Created Sat Apr 27 01:17:29 2024
# Orbit generated from Bernstein formalism
# Fitting 42 observations of 42
# Arc: 2.44y
# First observation: 2015/07/14
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
0.000044 0.032909 0.000008 0.010359 0.027316 0.000000
# Chi-squared of fit: 7.58 DOF: 78 RMS: 0.08
# Min/Max residuals: -0.31 0.25
# Exact a, adot, b, bdot, g, gdot:
1.906511E-05 3.227693E-02 5.371802E-06 1.022629E-02 2.681421E-02 -3.049794E-03
# Covariance matrix:
1.5554E-13 1.2774E-14 -5.7708E-15 1.9595E-14 1.0970E-13 8.7518E-13
1.2774E-14 3.0883E-13 -3.5990E-14 1.2659E-13 2.0825E-13 5.6133E-12
-5.7708E-15 -3.5990E-14 9.2919E-14 -7.7204E-14 -2.5675E-14 -8.8239E-13
1.9595E-14 1.2659E-13 -7.7204E-14 1.3183E-13 8.9571E-14 3.1140E-12
1.0970E-13 2.0825E-13 -2.5675E-14 8.9571E-14 2.2847E-13 3.9784E-12
8.7518E-13 5.6133E-12 -8.8239E-13 3.1140E-12 3.9784E-12 1.3799E-10
# lat0 lon0 xBary yBary zBary JD0
0.075346 9.895958 0.995822 0.000375 -0.209271 2457218.042659
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 354.94659 +/- 0.014
Argument of Peri: 19.49337 +/- 0.054
Long of Asc Node: 8.13985 +/- 0.000
Inclination: 17.65986 +/- 0.000
Eccentricity: 0.53206334 +/- 0.0002
Semi-Major Axis: 78.61029114 +/- 0.0206
Time of Perihelion: 2460784.0504 +/- 9.5
Perihelion: 36.78463691 +/- 0.0161
Aphelion: 120.43594536 +/- 0.0341
Period (y) 696.9912 +/- 0.27
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.11246414 +/- 0.0007
Ecliptic Y 5.46464302 +/- 0.0001
Ecliptic Z 0.04929691 +/- 0.0000
Ecliptic XDOT -0.00087679 +/- 0.0000
Ecliptic YDOT 0.00318655 +/- 0.0000
Ecliptic ZDOT 0.00104380 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.51266117 +/- 0.0006
Geocenter to KBO 37.29365528 +/- 0.0007
# Hcoef: 8.76
The following table shows the complete astrometric record for 15RL278. 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 (15RL278) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.54187 00 36 15.345 +03 59 21.09 24.7r 15RL278 568 C~2lVQ 2015 07 19.50673 00 36 13.110 +03 59 38.52 24.9r 15RL278 568 C~2lVQ 2015 08 11.49525 00 35 33.409 +03 57 53.98 24.7r 15RL278 568 C~2lVQ 2015 08 11.53687 00 35 33.295 +03 57 53.38 24.4r 15RL278 568 C~2lVQ 2015 09 08.40090 00 33 51.050 +03 50 01.44 24.1r 15RL278 568 C~2lVQ 2015 09 08.50503 00 33 50.580 +03 49 59.18 24.6r 15RL278 568 C~2lVQ 2015 09 08.54864 00 33 50.377 +03 49 58.15 24.3r 15RL278 568 C~2lVQ 2015 09 09.52420 00 33 46.010 +03 49 36.50 24.8w 15RL278 568 C~2lVQ 2015 09 10.46510 00 33 41.759 +03 49 15.37 24.8w 15RL278 568 C~2lVQ 2015 09 16.45310 00 33 13.907 +03 46 55.95 24.7w 15RL278 568 C~2lVQ 2015 10 03.37987 00 31 50.873 +03 39 53.00 24.0w 15RL278 568 C~2lVQ 2015 10 07.34557 00 31 31.146 +03 38 11.94 24.2r 15RL278 568 C~2lVQ 2015 10 07.36748 00 31 31.051 +03 38 11.28 24.5r 15RL278 568 C~2lVQ 2015 10 07.40358 00 31 30.852 +03 38 10.48 24.3r 15RL278 568 C~2lVQ 2015 11 07.24449 00 29 11.470 +03 26 27.99 24.8w 15RL278 568 C~2lVQ 2015 11 07.29726 00 29 11.261 +03 26 27.10 24.6w 15RL278 568 C~2lVQ 2015 11 10.38064 00 28 59.850 +03 25 32.55 24.8w 15RL278 568 C~2lVQ 2015 12 07.32092 00 27 51.986 +03 20 55.95 24.8w 15RL278 568 C~2lVQ 2016 01 01.24995 00 27 50.412 +03 23 08.23 24.9w 15RL278 568 C~2lVQ 2016 09 05.53675 00 40 01.399 +05 08 18.60 24.7w 15RL278 568 C~2lVQ 2016 09 05.58308 00 40 01.186 +05 08 17.58 24.8w 15RL278 568 C~2lVQ 2016 09 06.53219 00 39 57.082 +05 07 58.16 25.0w 15RL278 568 C~2lVQ 2016 09 06.57428 00 39 56.899 +05 07 57.29 24.8w 15RL278 568 C~2lVQ 2016 09 07.47613 00 39 52.951 +05 07 38.51 24.8w 15RL278 568 C~2lVQ 2016 09 07.52244 00 39 52.741 +05 07 37.49 24.5w 15RL278 568 C~2lVQ 2016 09 27.48878 00 38 17.928 +04 59 50.24 24.4w 15RL278 568 C~2lVQ 2016 11 03.39726 00 35 22.496 +04 44 56.20 24.8w 15RL278 568 C~2lVQ 2016 11 03.42043 00 35 22.395 +04 44 55.57 24.5w 15RL278 568 C~2lVQ 2016 11 03.49709 00 35 22.071 +04 44 54.09 24.5w 15RL278 568 C~2lVQ 2016 11 04.26545 00 35 18.966 +04 44 38.41 24.8w 15RL278 568 C~2lVQ 2016 11 04.32471 00 35 18.716 +04 44 37.17 24.6w 15RL278 568 C~2lVQ 2016 12 29.23783 00 33 38.577 +04 38 30.83 25.0w 15RL278 568 C~2lVQ 2017 01 03.20730 00 33 43.954 +04 39 28.21 24.6w 15RL278 568 C~2lVQ 2017 01 03.25288 00 33 44.003 +04 39 28.70 24.8w 15RL278 568 C~2lVQ 2017 01 27.23800 00 34 44.626 +04 47 46.99 24.4w 15RL278 568 C~2lVQ 2017 01 28.23385 00 34 48.317 +04 48 15.12 24.4w 15RL278 568 C~2lVQ 2017 01 30.24057 00 34 56.028 +04 49 13.60 25.4w 15RL278 568 C~2lVQ 2017 09 15.43089 00 45 23.092 +06 22 46.03 24.8w 15RL278 568 C~2lVQ 2017 09 22.49605 00 44 49.218 +06 20 02.99 24.2w 15RL278 568 C~2lVQ 2017 11 22.36083 00 40 17.825 +05 57 07.85 25.1w 15RL278 568 C~2lVQ 2017 12 23.28786 00 39 31.092 +05 54 12.19 24.5w 15RL278 568 C~2lVQ 2017 12 23.30180 00 39 31.103 +05 54 12.22 25.2w 15RL278 568 C~2lVQ
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 0.14
2 0.0136 -23.91 0.06 29.17 -0.04
3 0.0765 -611.29 -0.09 166.46 0.05
4 0.0766 -613.09 -0.11 166.57 -0.10
5 0.1529 -2205.61 -0.03 334.37 0.04
6 0.1532 -2212.97 0.03 335.06 0.05
7 0.1533 -2216.17 -0.06 335.31 0.01
8 0.1560 -2284.78 0.01 341.12 -0.02
9 0.1586 -2351.60 -0.01 346.74 -0.04
10 0.1750 -2789.75 -0.08 382.64 -0.07
11 0.2213 -4099.14 0.12 483.37 -0.07
12 0.2322 -4410.50 -0.01 506.86 0.05
13 0.2322 -4412.07 0.17 506.81 -0.14
14 0.2323 -4415.13 -0.01 507.25 0.07
15 0.3168 -6611.39 0.03 684.78 -0.05
16 0.3169 -6614.62 0.00 685.20 0.04
17 0.3254 -6793.33 0.01 702.53 0.01
18 0.3991 -7837.49 -0.06 849.78 -0.01
19 0.4674 -7806.86 -0.02 980.71 0.01
20 1.1471 4733.08 0.07 2480.75 0.07
21 1.1473 4729.75 -0.09 2481.06 0.06
22 1.1499 4665.69 0.03 2487.20 0.06
23 1.1500 4662.83 0.09 2487.47 0.03
24 1.1525 4601.17 0.02 2493.28 0.06
25 1.1526 4597.88 -0.02 2493.57 0.02
26 1.2072 3110.82 0.03 2618.77 0.02
27 1.3083 347.91 0.03 2825.88 0.02
28 1.3084 346.28 -0.08 2825.89 -0.09
29 1.3086 341.24 -0.10 2826.43 0.03
30 1.3107 292.39 0.05 2830.26 0.02
31 1.3108 288.47 -0.02 2830.59 0.01
32 1.4612 -1232.18 -0.02 3082.73 -0.05
33 1.4748 -1135.68 0.06 3103.84 0.10
34 1.4749 -1134.81 -0.10 3104.00 0.05
35 1.5406 -105.47 -0.05 3205.56 0.02
36 1.5433 -43.68 -0.02 3209.73 -0.09
37 1.5488 85.31 0.25 3218.18 -0.31
38 2.1735 10908.65 0.03 4722.62 -0.04
39 2.1929 10378.53 -0.02 4768.98 0.07
40 2.3595 6107.39 0.07 5082.31 -0.06
41 2.4442 5396.30 -0.14 5193.54 0.08
42 2.4442 5396.46 0.01 5193.51 -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.
15RL278 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 80.360 80.396 80.324 ecceobj 0.542 0.542 0.542 incobj 17.590 17.590 17.590 qmin 35.935 35.612 36.073 qmax 124.677 124.874 124.539 amean 79.000 79.000 79.000 amin 77.761 77.672 77.826 amax 80.681 80.751 80.680 emean 0.534 0.536 0.533 emin 0.524 0.524 0.523 emax 0.545 0.548 0.544 imean 17.829 17.587 17.990 imin 17.491 17.040 17.710 imax 18.180 18.165 18.238 excite_mean 0.616 0.615 0.616 fracstop 1.000 1.000 1.000 cjmean 2.988 2.988 2.988 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 143.6 167.5 119.9 kozaiamp 125.9 152.4 100.4