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: 15GV56
# Created Sun Nov 24 02:10:17 2024
# Orbit generated from Bernstein formalism
# Fitting 30 observations of 30
# Arc: 2.11y
# First observation: 2015/02/17
# Last observation: 2017/03/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000177 0.024071 0.000002 -0.000258 0.023824 0.000000
# WARNING -- MRQMIN stopped after 17 iterations
# Chi-squared of fit: 13.95 DOF: 54 RMS: 0.12
# Min/Max residuals: -0.27 0.30
# Exact a, adot, b, bdot, g, gdot:
1.606720E-05 2.381931E-02 -3.770109E-08 -2.553781E-04 2.386060E-02 -1.513737E-03
# Covariance matrix:
2.1637E-13 -1.3194E-13 -6.1198E-16 1.6852E-16 1.2340E-13 -6.6298E-13
-1.3194E-13 6.0524E-13 4.7260E-16 -4.6891E-15 1.4712E-13 1.3954E-11
-6.1198E-16 4.7260E-16 9.7578E-14 -7.6832E-14 -5.5183E-16 9.0177E-15
1.6852E-16 -4.6891E-15 -7.6832E-14 1.2003E-13 -1.8749E-15 -1.3783E-13
1.2340E-13 1.4712E-13 -5.5183E-16 -1.8749E-15 2.1905E-13 5.3784E-12
-6.6298E-13 1.3954E-11 9.0177E-15 -1.3783E-13 5.3784E-12 4.0883E-10
# lat0 lon0 xBary yBary zBary JD0
1.345383 -155.992387 0.814777 0.013156 -0.553860 2457070.998808
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 319.23762 +/- 0.228
Argument of Peri: 164.13758 +/- 0.323
Long of Asc Node: 88.91651 +/- 0.030
Inclination: 1.45296 +/- 0.000
Eccentricity: 0.11272833 +/- 0.0007
Semi-Major Axis: 46.12831245 +/- 0.0063
Time of Perihelion: 2470027.5711 +/- 72.5
Perihelion: 40.92834503 +/- 0.0309
Aphelion: 51.32827986 +/- 0.0312
Period (y) 313.2994 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.11429142 +/- 0.0008
Ecliptic Y -16.52788779 +/- 0.0003
Ecliptic Z 0.98400771 +/- 0.0000
Ecliptic XDOT 0.00126633 +/- 0.0000
Ecliptic YDOT -0.00243188 +/- 0.0000
Ecliptic ZDOT -0.00003328 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.47431153 +/- 0.0007
Geocenter to KBO 41.91009338 +/- 0.0008
# Hcoef: 8.55
The following table shows the complete astrometric record for 15GV56. 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 (15GV56) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.49803 13 30 54.472 -08 03 44.84 24.3r 15GV56 568 C~2nvT 2015 02 17.53937 13 30 54.387 -08 03 44.33 24.6r 15GV56 568 C~2nvT 2015 02 20.47010 13 30 47.915 -08 03 01.58 25.4r 15GV56 568 C~2nvT 2015 03 18.46654 13 29 25.141 -07 54 23.82 24.7r 15GV56 568 C~2nvT 2015 04 11.41033 13 27 42.900 -07 44 11.12 25.2r 15GV56 568 C~2nvT 2015 04 12.36301 13 27 38.592 -07 43 46.07 24.5r 15GV56 568 C~2nvT 2015 04 12.40393 13 27 38.428 -07 43 45.06 24.7r 15GV56 568 C~2nvT 2015 04 12.45094 13 27 38.204 -07 43 43.61 24.7r 15GV56 568 C~2nvT 2015 04 14.46090 13 27 29.183 -07 42 50.67 24.5r 15GV56 568 C~2nvT 2015 04 18.42156 13 27 11.415 -07 41 06.66 24.6r 15GV56 568 C~2nvT 2015 04 18.46928 13 27 11.217 -07 41 05.46 24.9r 15GV56 568 C~2nvT 2015 05 16.26602 13 25 15.395 -07 30 01.80 24.7r 15GV56 568 C~2nvT 2015 05 25.37165 13 24 44.139 -07 27 09.17 25.1r 15GV56 568 C~2nvT 2015 05 25.41355 13 24 44.011 -07 27 08.44 25.0r 15GV56 568 C~2nvT 2015 05 25.42921 13 24 43.950 -07 27 08.38 24.8r 15GV56 568 C~2nvT 2015 06 21.32182 13 23 43.551 -07 21 58.10 24.8r 15GV56 568 C~2nvT 2015 06 22.27832 13 23 42.421 -07 21 53.38 25.1r 15GV56 568 C~2nvT 2015 07 12.27234 13 23 36.294 -07 21 59.77 24.6r 15GV56 568 C~2nvT 2016 02 04.57138 13 36 21.284 -08 36 48.48 25.2w 15GV56 568 C~2nvT 2016 02 10.55938 13 36 14.532 -08 35 58.63 24.9w 15GV56 568 C~2nvT 2016 02 10.60896 13 36 14.452 -08 35 58.09 24.6w 15GV56 568 C~2nvT 2016 02 11.58117 13 36 13.073 -08 35 48.35 25.0w 15GV56 568 C~2nvT 2016 03 11.56702 13 34 58.016 -08 27 52.10 25.6w 15GV56 568 C~2nvT 2016 04 03.45744 13 33 25.498 -08 18 38.29 25.0w 15GV56 568 C~2nvT 2016 04 09.43859 13 32 58.891 -08 16 02.37 24.8w 15GV56 568 C~2nvT 2016 05 02.31122 13 31 17.430 -08 06 18.10 25.3w 15GV56 568 C~2nvT 2016 05 06.32100 13 31 00.606 -08 04 43.02 24.7w 15GV56 568 C~2nvT 2017 02 24.64250 13 40 55.649 -09 03 32.10 15GV56 568 C~2nvT 2017 03 29.45933 13 39 00.965 -08 52 01.09 24.8w 15GV56 568 C~2nvT 2017 03 29.46871 13 39 00.926 -08 52 01.10 24.7w 15GV56 568 C~2nvT
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 -0.06 0.00 -0.03
2 0.0001 -1.36 0.03 0.01 -0.06
3 0.0081 -106.47 -0.10 4.50 0.01
4 0.0793 -1440.31 0.05 34.23 -0.24
5 0.1449 -3078.72 0.30 44.28 0.27
6 0.1475 -3147.50 -0.20 43.95 -0.06
7 0.1476 -3150.13 0.14 43.99 -0.00
8 0.1477 -3153.76 -0.07 44.11 0.14
9 0.1532 -3297.96 -0.00 43.86 0.06
10 0.1641 -3581.90 -0.11 43.08 -0.00
11 0.1642 -3585.08 0.17 43.10 0.06
12 0.2403 -5431.42 0.16 23.32 0.05
13 0.2652 -5927.53 -0.17 11.57 -0.04
14 0.2653 -5929.57 -0.06 11.55 0.00
15 0.2654 -5930.43 -0.13 11.27 -0.25
16 0.3390 -6880.78 -0.09 -33.57 0.00
17 0.3416 -6898.17 -0.03 -35.42 -0.04
18 0.3964 -6980.53 0.18 -75.19 0.10
19 0.9639 5240.89 0.14 -74.13 0.02
20 0.9803 5129.41 0.02 -64.12 0.03
21 0.9805 5128.11 -0.09 -64.05 0.04
22 0.9831 5105.50 0.12 -62.42 0.09
23 1.0625 3894.54 -0.27 -24.43 -0.26
24 1.1251 2413.84 -0.03 -10.08 0.09
25 1.1415 1989.19 -0.08 -9.37 0.01
26 1.2041 373.40 0.20 -17.48 0.02
27 1.2151 106.09 -0.02 -20.69 0.05
28 2.0209 9618.06 0.07 -95.18 -0.12
29 2.1108 7780.65 -0.09 -65.22 0.14
30 2.1108 7780.11 0.02 -65.44 -0.08
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.
15GV56 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.668 45.682 45.654 ecceobj 0.108 0.109 0.107 incobj 1.453 1.453 1.453 qmin 40.304 40.303 40.366 qmax 51.927 51.983 51.923 amean 45.989 46.002 45.975 amin 45.607 45.621 45.613 amax 46.403 46.421 46.396 emean 0.107 0.107 0.106 emin 0.093 0.094 0.092 emax 0.120 0.120 0.119 imean 0.530 0.532 0.530 imin 0.034 0.034 0.040 imax 0.845 0.848 0.842 excite_mean 0.107 0.108 0.106 fracstop 1.000 1.000 1.000 cjmean 3.112 3.112 3.112 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 174.7 173.9 175.0 kozaiamp 180.0 179.9 180.0