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: 15GV54
# Created Sun Dec 22 02:10:19 2024
# Orbit generated from Bernstein formalism
# Fitting 39 observations of 40
# Arc: 2.35y
# First observation: 2015/02/17
# Last observation: 2017/06/24
Preliminary a, adot, b, bdot, g, gdot:
-0.000069 0.029322 0.000004 0.000001 0.027762 0.000000
# Chi-squared of fit: 11.68 DOF: 72 RMS: 0.10
# Min/Max residuals: -0.23 0.30
# Exact a, adot, b, bdot, g, gdot:
1.638903E-05 2.895932E-02 1.845124E-07 -1.514175E-07 2.758949E-02 -6.007278E-03
# Covariance matrix:
1.6187E-13 1.4377E-14 -1.9784E-15 9.6513E-16 1.3480E-13 1.7654E-12
1.4377E-14 2.8101E-13 -2.6928E-15 2.0560E-15 1.9338E-13 5.9339E-12
-1.9784E-15 -2.6928E-15 8.1318E-14 -6.1729E-14 -3.7509E-15 -7.1872E-14
9.6513E-16 2.0560E-15 -6.1729E-14 8.5778E-14 2.2276E-15 6.0722E-14
1.3480E-13 1.9338E-13 -3.7509E-15 2.2276E-15 2.6087E-13 5.2392E-12
1.7654E-12 5.9339E-12 -7.1872E-14 6.0722E-14 5.2392E-12 1.8620E-10
# lat0 lon0 xBary yBary zBary JD0
3.147604 -154.969859 0.823586 0.029835 -0.540017 2457071.097458
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 300.87707 +/- 0.030
Argument of Peri: 174.19185 +/- 0.019
Long of Asc Node: 114.76673 +/- 0.011
Inclination: 3.10087 +/- 0.000
Eccentricity: 0.23397214 +/- 0.0005
Semi-Major Axis: 39.68857379 +/- 0.0099
Time of Perihelion: 2472069.0802 +/- 5.1
Perihelion: 30.40255332 +/- 0.0206
Aphelion: 48.97459427 +/- 0.0227
Period (y) 250.0382 +/- 0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -33.63341418 +/- 0.0006
Ecliptic Y -14.79476093 +/- 0.0003
Ecliptic Z 1.99020341 +/- 0.0000
Ecliptic XDOT 0.00175157 +/- 0.0000
Ecliptic YDOT -0.00235763 +/- 0.0000
Ecliptic ZDOT -0.00003266 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.79745113 +/- 0.0006
Geocenter to KBO 36.24568774 +/- 0.0007
# Hcoef: 9.03
The following table shows the complete astrometric record for 15GV54. 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 (15GV54) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.59668 13 37 23.885 -06 45 26.74 24.9r 15GV54 568 C~2lV8 2015 02 17.63771 13 37 23.782 -06 45 25.94 24.1r 15GV54 568 C~2lV8 2015 02 20.63083 13 37 16.747 -06 44 30.60 25.0r 15GV54 568 C~2lV8 2015 03 18.57516 13 35 45.522 -06 34 00.65 24.4r 15GV54 568 C~2lV8 2015 03 18.62254 13 35 45.319 -06 33 59.26 24.6r 15GV54 568 C~2lV8 2015 03 20.57938 13 35 36.617 -06 33 03.35 24.5r 15GV54 568 C~2lV8 2015 04 11.51365 13 33 49.564 -06 22 04.44 25.1r 15GV54 568 C~2lV8 2015 04 13.37789 13 33 40.027 -06 21 07.96 24.3r 15GV54 568 C~2lV8 2015 04 13.41891 13 33 39.807 -06 21 06.73 24.6r 15GV54 568 C~2lV8 2015 04 13.42365 13 33 39.763 -06 21 06.67 24.9r 15GV54 568 C~2lV8 2015 04 13.42846 13 33 39.750 -06 21 06.50 24.0r 15GV54 568 C~2lV8 2015 04 13.43331 13 33 39.726 -06 21 06.39 24.5r 15GV54 568 C~2lV8 2015 04 13.43815 13 33 39.697 -06 21 06.22 24.4r 15GV54 568 C~2lV8 2015 04 13.52145 13 33 39.257 -06 21 03.39 24.2r 15GV54 568 C~2lV8 2015 04 19.48929 13 33 08.592 -06 18 04.41 24.0r 15GV54 568 C~2lV8 2015 04 19.53630 13 33 08.346 -06 18 02.99 24.4r 15GV54 568 C~2lV8 2015 04 19.56015 13 33 08.252 -06 18 02.67 24.5r 15GV54 568 C~2lV8 2015 05 18.34130 13 30 51.039 -06 05 28.55 24.4r 15GV54 568 C~2lV8 2015 06 20.29133 13 29 12.762 -05 58 08.23 24.4r 15GV54 568 C~2lV8 2015 06 20.33212 13 29 12.695 -05 58 07.95 24.5r 15GV54 568 C~2lV8 2015 06 22.33610 13 29 09.675 -05 58 00.30 24.7r 15GV54 568 C~2lV8 2015 07 20.28135 13 29 08.164 -06 00 23.18 24.9r 15GV54 568 C~2lV8 2016 02 10.57151 13 43 53.487 -07 23 31.81 25.4w 15GV54 568 C~2lV8 2016 02 10.61301 13 43 53.431 -07 23 31.23 25.2w 15GV54 568 C~2lV8 2016 03 11.56297 13 42 31.539 -07 13 28.29 24.5w 15GV54 568 C~2lV8 2016 04 03.44935 13 40 47.313 -07 02 34.56 25.1w 15GV54 568 C~2lV8 2016 04 09.43049 13 40 16.934 -06 59 33.53 24.6w 15GV54 568 C~2lV8 2016 05 01.45743 13 38 23.944 -06 48 50.58 24.9w 15GV54 568 C~2lV8 2016 05 02.33152 13 38 19.622 -06 48 26.80 25.4w 15GV54 568 C~2lV8 2016 05 02.36396 13 38 19.461 -06 48 25.85 24.5w 15GV54 568 C~2lV8 2016 05 07.33487 13 37 55.257 -06 46 15.07 25.0w 15GV54 568 C~2lV8 2016 05 28.29220 13 36 26.203 -06 38 41.66 24.7w 15GV54 568 C~2lV8 2016 05 28.30434 13 36 26.150 -06 38 41.52 25.3w 15GV54 568 C~2lV8 2016 05 29.31127 13 36 22.568 -06 38 24.70 24.4w 15GV54 568 C~2lV8 2016 06 04.36963 13 36 02.442 -06 36 52.52 25.1w 15GV54 568 C~2lV8 2016 06 27.34644 13 35 14.411 -06 34 05.52 25.0w 15GV54 568 C~2lV8 2016 07 07.33613 13 35 08.994 -06 34 28.42 26.0w 15GV54 568 C~2lV8 2017 02 27.64948 13 49 38.768 -07 54 54.72 15GV54 568 C~2lV8 2017 03 30.48771 13 47 35.110 -07 41 36.98 24.8w 15GV54 568 C~2lV8 2017 06 24.30392 13 41 36.540 -07 10 41.47 24.9w 15GV54 568 C~2lV8
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 0.04 0.00 -0.04
2 0.0001 -1.72 -0.10 0.19 -0.02
3 0.0083 -119.45 0.03 13.72 0.05
4 0.0793 -1614.64 0.00 106.75 -0.02
5 0.0795 -1617.96 0.11 106.95 0.07
6 0.0848 -1759.10 -0.19 111.86 -0.00
7 0.1449 -3485.38 -0.14 144.42 0.09
8 0.1500 -3638.41 0.15 145.17 0.06
9 0.1501 -3641.91 0.08 145.12 0.02
10 0.1501 -3642.55 -0.15 144.93 -0.16
11 0.1501 -3642.79 0.01 145.02 -0.07
12 0.1501 -3643.16 0.04 144.99 -0.10
13 0.1501 -3643.63 -0.02 144.99 -0.10
14 0.1504 -3650.77 -0.19 145.24 0.16
15 0.1667 -4141.91 0.10 145.11 0.06
16 0.1668 -4145.84 0.08 145.10 0.08
17 0.1669 -4147.26 ( 0.64) 144.88 ( -0.12)
18 0.2457 -6328.92 0.18 99.15 -0.23
19 0.3359 -7856.13 0.01 -28.16 -0.05
20 0.3360 -7857.17 0.00 -28.27 0.05
21 0.3415 -7901.95 0.01 -37.68 0.15
22 0.4180 -7870.49 -0.14 -178.97 0.05
23 0.9801 6235.24 0.04 -35.10 -0.10
24 0.9802 6234.25 0.08 -34.86 -0.04
25 1.0622 4879.49 -0.06 89.01 0.06
26 1.1249 3196.17 -0.11 138.92 -0.08
27 1.1412 2708.94 0.00 144.26 0.00
28 1.2015 907.60 0.03 134.50 -0.02
29 1.2039 838.98 0.04 133.33 0.06
30 1.2040 836.40 0.05 133.35 0.15
31 1.2176 453.00 -0.13 124.51 0.07
32 1.2750 -947.77 0.01 65.34 -0.01
33 1.2750 -948.55 -0.08 65.19 -0.12
34 1.2778 -1004.39 0.30 61.46 -0.19
35 1.2944 -1317.26 -0.08 38.33 0.02
36 1.3573 -2044.73 0.05 -66.47 0.07
37 1.3846 -2111.59 -0.02 -117.18 0.10
38 2.0289 11712.82 0.02 45.37 -0.08
39 2.1133 9706.01 0.03 134.26 0.06
40 2.3483 4055.54 -0.11 -50.60 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.
15GV54 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.347 39.369 39.325 ecceobj 0.234 0.235 0.233 incobj 3.101 3.101 3.101 qmin 29.514 29.554 29.598 qmax 50.133 50.176 50.079 amean 39.456 39.456 39.456 amin 38.908 38.897 38.909 amax 40.084 40.095 40.072 emean 0.236 0.236 0.234 emin 0.221 0.221 0.218 emax 0.252 0.252 0.251 imean 1.596 1.717 1.596 imin 1.069 1.136 0.946 imax 2.268 2.235 2.270 excite_mean 0.237 0.238 0.236 fracstop 1.000 1.000 1.000 cjmean 2.987 2.986 2.988 libcent 0 180.3 180.0 180.4 libamp 0 119.7 123.7 121.3 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 213.5 181.2 197.7 kozaiamp 179.9 180.0 179.8