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: 15GV57
# Created Wed May 8 01:17:05 2024
# Orbit generated from Bernstein formalism
# Fitting 28 observations of 28
# Arc: 2.11y
# First observation: 2015/02/17
# Last observation: 2017/03/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000114 0.023758 0.000003 -0.000595 0.024052 0.000000
# Chi-squared of fit: 5.89 DOF: 50 RMS: 0.08
# Min/Max residuals: -0.22 0.19
# Exact a, adot, b, bdot, g, gdot:
1.599131E-05 2.371982E-02 -1.033180E-06 -5.927756E-04 2.418931E-02 1.441268E-03
# Covariance matrix:
2.0511E-13 -1.6876E-14 -1.4802E-16 -2.0039E-15 1.4914E-13 2.2548E-12
-1.6876E-14 3.7036E-13 6.7492E-16 -7.9423E-15 2.1906E-13 8.7803E-12
-1.4802E-16 6.7492E-16 1.1266E-13 -8.9806E-14 2.0916E-16 2.7303E-14
-2.0039E-15 -7.9423E-15 -8.9806E-14 1.3382E-13 -6.8323E-15 -2.9731E-13
1.4914E-13 2.1906E-13 2.0916E-16 -6.8323E-15 2.9798E-13 7.5992E-12
2.2548E-12 8.7803E-12 2.7303E-14 -2.9731E-13 7.5992E-12 3.2842E-10
# lat0 lon0 xBary yBary zBary JD0
1.849271 -157.520600 0.798994 0.018746 -0.576247 2457071.068908
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 54.04800 +/- 0.344
Argument of Peri: 68.30203 +/- 0.427
Long of Asc Node: 73.98592 +/- 0.017
Inclination: 2.29473 +/- 0.001
Eccentricity: 0.05216958 +/- 0.0007
Semi-Major Axis: 43.16860160 +/- 0.0042
Time of Perihelion: 2441517.0213 +/- 99.0
Perihelion: 40.91651386 +/- 0.0296
Aphelion: 45.42068934 +/- 0.0297
Period (y) 283.6352 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.02051249 +/- 0.0009
Ecliptic Y -15.28056226 +/- 0.0003
Ecliptic Z 1.33402940 +/- 0.0000
Ecliptic XDOT 0.00087020 +/- 0.0000
Ecliptic YDOT -0.00254946 +/- 0.0000
Ecliptic ZDOT -0.00006170 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.92702723 +/- 0.0008
Geocenter to KBO 41.34057579 +/- 0.0009
# Hcoef: 8.47
The following table shows the complete astrometric record for 15GV57. 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 (15GV57) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.56813 13 25 55.664 -07 01 51.11 24.3r 15GV57 568 C~2nvX 2015 02 17.60905 13 25 55.574 -07 01 50.64 25.1r 15GV57 568 C~2nvX 2015 02 20.60184 13 25 48.511 -07 01 02.57 24.7r 15GV57 568 C~2nvX 2015 03 18.54653 13 24 22.332 -06 51 50.77 24.3r 15GV57 568 C~2nvX 2015 03 18.58746 13 24 22.166 -06 51 49.85 24.7r 15GV57 568 C~2nvX 2015 03 20.55033 13 24 14.184 -06 51 00.61 23.8r 15GV57 568 C~2nvX 2015 04 11.48481 13 22 37.846 -06 41 19.38 24.6r 15GV57 568 C~2nvX 2015 04 13.34921 13 22 29.387 -06 40 29.19 24.2r 15GV57 568 C~2nvX 2015 04 13.39016 13 22 29.190 -06 40 28.05 24.5r 15GV57 568 C~2nvX 2015 04 13.45967 13 22 28.881 -06 40 26.22 24.3r 15GV57 568 C~2nvX 2015 04 19.39003 13 22 01.965 -06 37 48.52 24.5r 15GV57 568 C~2nvX 2015 06 20.26264 13 18 41.296 -06 19 50.03 24.9r 15GV57 568 C~2nvX 2015 06 20.30355 13 18 41.227 -06 19 49.86 24.8r 15GV57 568 C~2nvX 2015 06 22.30724 13 18 38.939 -06 19 42.15 25.1r 15GV57 568 C~2nvX 2015 07 20.24993 13 18 42.850 -06 21 33.65 25.1r 15GV57 568 C~2nvX 2015 07 20.26062 13 18 42.877 -06 21 33.73 25.4r 15GV57 568 C~2nvX 2016 02 04.55115 13 31 19.453 -07 36 24.56 24.9w 15GV57 568 C~2nvX 2016 02 10.53908 13 31 11.836 -07 35 25.94 25.1w 15GV57 568 C~2nvX 2016 03 11.54027 13 29 51.367 -07 26 38.83 25.0w 15GV57 568 C~2nvX 2016 05 01.35644 13 26 11.321 -07 04 58.16 24.6w 15GV57 568 C~2nvX 2016 05 02.29905 13 26 07.279 -07 04 35.47 25.2w 15GV57 568 C~2nvX 2016 05 06.30882 13 25 50.466 -07 03 01.60 25.1w 15GV57 568 C~2nvX 2016 05 28.28814 13 24 31.187 -06 55 53.38 24.3w 15GV57 568 C~2nvX 2016 06 04.34936 13 24 11.707 -06 54 14.98 24.9w 15GV57 568 C~2nvX 2016 06 04.35749 13 24 11.691 -06 54 14.90 25.1w 15GV57 568 C~2nvX 2016 07 06.30443 13 23 31.594 -06 51 49.42 25.0w 15GV57 568 C~2nvX 2017 02 24.62769 13 35 43.851 -08 03 38.62 15GV57 568 C~2nvX 2017 03 29.45461 13 33 45.562 -07 51 31.66 24.9w 15GV57 568 C~2nvX
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 -0.10 0.00 0.13
2 0.0001 -1.42 0.03 -0.06 0.01
3 0.0083 -116.89 0.01 5.65 0.01
4 0.0793 -1513.26 -0.07 42.37 0.10
5 0.0795 -1515.90 -0.00 42.31 0.01
6 0.0848 -1644.56 -0.04 43.92 -0.06
7 0.1449 -3193.01 -0.09 50.36 -0.15
8 0.1500 -3328.69 0.06 50.08 0.00
9 0.1501 -3331.84 -0.06 50.04 -0.00
10 0.1503 -3336.80 0.13 50.03 0.04
11 0.1665 -3767.83 0.02 47.18 -0.07
12 0.3359 -6947.27 0.19 -67.73 0.04
13 0.3360 -6948.29 -0.02 -67.96 -0.05
14 0.3415 -6982.85 -0.06 -73.56 -0.05
15 0.4180 -6886.99 -0.10 -155.23 -0.02
16 0.4180 -6886.59 0.07 -155.16 0.09
17 0.9637 5243.51 0.10 -149.81 -0.08
18 0.9801 5116.56 0.01 -136.91 -0.00
19 1.0622 3809.28 0.13 -87.11 0.14
20 1.2013 285.77 0.04 -87.45 0.13
21 1.2039 221.48 -0.22 -88.65 0.04
22 1.2149 -45.77 -0.05 -94.14 -0.20
23 1.2751 -1300.78 0.03 -133.99 -0.11
24 1.2944 -1606.67 -0.03 -150.27 -0.03
25 1.2944 -1606.92 0.05 -150.28 -0.03
26 1.3819 -2215.42 0.00 -236.95 0.03
27 2.0207 9503.54 -0.04 -231.05 0.01
28 2.1106 7598.88 -0.00 -196.93 0.06
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.
15GV57 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.765 42.779 42.751 ecceobj 0.046 0.048 0.045 incobj 2.296 2.296 2.296 qmin 39.644 39.544 39.642 qmax 46.690 46.730 46.572 amean 43.026 43.040 43.012 amin 42.691 42.703 42.681 amax 43.382 43.390 43.367 emean 0.054 0.056 0.053 emin 0.036 0.036 0.033 emax 0.076 0.077 0.075 imean 0.987 0.988 0.985 imin 0.247 0.235 0.259 imax 1.597 1.607 1.588 excite_mean 0.057 0.059 0.056 fracstop 1.000 1.000 1.000 cjmean 3.086 3.086 3.086 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 172.2 172.0 172.1 kozaiamp 180.0 179.8 180.0