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: 15GE55
# Created Sun Dec 22 02:10:19 2024
# Orbit generated from Bernstein formalism
# Fitting 35 observations of 35
# Arc: 2.35y
# First observation: 2015/02/17
# Last observation: 2017/06/25
Preliminary a, adot, b, bdot, g, gdot:
-0.000103 0.024994 0.000001 -0.000658 0.024666 0.000000
# Chi-squared of fit: 13.32 DOF: 64 RMS: 0.11
# Min/Max residuals: -0.64 0.25
# Exact a, adot, b, bdot, g, gdot:
1.591863E-05 2.486101E-02 -1.275364E-07 -6.558439E-04 2.465384E-02 4.180829E-04
# Covariance matrix:
1.8245E-13 1.1955E-14 -1.1060E-17 -2.4675E-15 1.4485E-13 2.1464E-12
1.1955E-14 2.8363E-13 1.0835E-15 -7.9207E-15 1.9050E-13 6.5546E-12
-1.1060E-17 1.0835E-15 8.9575E-14 -6.4111E-14 5.6109E-16 3.8313E-14
-2.4675E-15 -7.9207E-15 -6.4111E-14 8.5831E-14 -6.9720E-15 -2.6535E-13
1.4485E-13 1.9050E-13 5.6109E-16 -6.9720E-15 2.6399E-13 5.8871E-12
2.1464E-12 6.5546E-12 3.8313E-14 -2.6535E-13 5.8871E-12 2.1898E-10
# lat0 lon0 xBary yBary zBary JD0
0.974099 -153.788172 0.835328 0.009029 -0.522441 2457071.015468
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 358.72206 +/- 0.511
Argument of Peri: 148.59841 +/- 0.580
Long of Asc Node: 57.88285 +/- 0.011
Inclination: 1.77263 +/- 0.001
Eccentricity: 0.06228635 +/- 0.0000
Semi-Major Axis: 43.82390710 +/- 0.0026
Time of Perihelion: 2457446.6593 +/- 150.4
Perihelion: 41.09427570 +/- 0.0032
Aphelion: 46.55353849 +/- 0.0034
Period (y) 290.1181 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -37.22579405 +/- 0.0008
Ecliptic Y -17.39446902 +/- 0.0004
Ecliptic Z 0.68955470 +/- 0.0000
Ecliptic XDOT 0.00117303 +/- 0.0000
Ecliptic YDOT -0.00250357 +/- 0.0000
Ecliptic ZDOT -0.00007194 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.09504570 +/- 0.0007
Geocenter to KBO 40.56163991 +/- 0.0008
# Hcoef: 7.89
The following table shows the complete astrometric record for 15GE55. 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 (15GE55) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.51469 13 38 39.853 -09 12 39.80 24.2r 15GE55 568 C~2lVA 2015 02 17.55579 13 38 39.764 -09 12 39.25 24.5r 15GE55 568 C~2lVA 2015 02 20.48657 13 38 33.546 -09 12 00.60 24.1r 15GE55 568 C~2lVA 2015 03 18.49249 13 37 11.015 -09 03 48.01 24.1r 15GE55 568 C~2lVA 2015 03 18.53407 13 37 10.842 -09 03 47.25 23.8r 15GE55 568 C~2lVA 2015 03 20.53726 13 37 02.811 -09 03 00.08 23.9r 15GE55 568 C~2lVA 2015 04 11.47256 13 35 25.994 -08 53 39.67 23.8r 15GE55 568 C~2lVA 2015 04 12.37938 13 35 21.804 -08 53 15.45 23.9r 15GE55 568 C~2lVA 2015 04 12.42509 13 35 21.598 -08 53 14.41 24.1r 15GE55 568 C~2lVA 2015 04 12.46730 13 35 21.390 -08 53 13.19 24.0r 15GE55 568 C~2lVA 2015 04 18.43790 13 34 53.579 -08 50 34.51 23.9r 15GE55 568 C~2lVA 2015 04 18.48560 13 34 53.365 -08 50 32.97 23.9r 15GE55 568 C~2lVA 2015 05 16.28656 13 32 51.558 -08 39 08.16 23.5r 15GE55 568 C~2lVA 2015 05 17.24686 13 32 47.880 -08 38 47.89 23.7r 15GE55 568 C~2lVA 2015 05 25.38864 13 32 18.213 -08 36 05.61 23.9r 15GE55 568 C~2lVA 2015 05 25.44647 13 32 18.008 -08 36 04.53 24.0r 15GE55 568 C~2lVA 2015 06 21.33827 13 31 11.425 -08 30 18.92 24.1r 15GE55 568 C~2lVA 2015 06 22.29486 13 31 10.097 -08 30 12.78 24.2r 15GE55 568 C~2lVA 2015 07 19.27863 13 31 05.244 -08 30 34.83 24.1r 15GE55 568 C~2lVA 2016 02 04.61431 13 44 17.572 -09 47 23.66 24.4w 15GE55 568 C~2lVA 2016 02 11.59753 13 44 10.415 -09 46 36.04 24.0w 15GE55 568 C~2lVA 2016 04 03.47768 13 41 23.140 -09 30 17.04 24.3w 15GE55 568 C~2lVA 2016 04 09.45883 13 40 55.768 -09 27 41.65 24.2w 15GE55 568 C~2lVA 2016 05 01.46556 13 39 14.041 -09 18 10.42 24.3w 15GE55 568 C~2lVA 2016 05 02.33963 13 39 10.145 -09 17 48.88 24.3w 15GE55 568 C~2lVA 2016 05 07.34298 13 38 48.172 -09 15 47.13 24.1w 15GE55 568 C~2lVA 2016 05 29.32744 13 37 24.219 -09 08 10.34 24.4w 15GE55 568 C~2lVA 2016 06 04.38987 13 37 05.899 -09 06 33.75 24.1w 15GE55 568 C~2lVA 2016 06 27.32010 13 36 21.606 -09 02 56.26 23.9w 15GE55 568 C~2lVA 2016 06 27.32513 13 36 21.587 -09 02 56.32 23.7w 15GE55 568 C~2lVA 2016 07 07.31590 13 36 16.034 -09 02 42.31 24.4w 15GE55 568 C~2lVA 2017 02 27.64150 13 48 58.694 -10 15 49.28 15GE55 568 C~2lVA 2017 02 27.64549 13 48 58.665 -10 15 49.13 15GE55 568 C~2lVA 2017 03 30.49241 13 47 07.028 -10 05 10.97 24.2w 15GE55 568 C~2lVA 2017 06 25.27303 13 41 43.657 -09 36 03.77 24.9w 15GE55 568 C~2lVA
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 -0.06
2 0.0001 -1.43 -0.06 0.04 -0.04
3 0.0081 -101.24 -0.03 2.78 0.07
4 0.0793 -1418.96 0.00 19.43 0.08
5 0.0795 -1421.62 0.01 19.21 -0.13
6 0.0849 -1549.60 -0.02 20.04 0.00
7 0.1450 -3089.87 -0.09 21.36 -0.03
8 0.1475 -3156.54 0.05 21.34 0.12
9 0.1476 -3159.76 0.25 21.20 0.01
10 0.1477 -3163.08 0.10 21.22 0.05
11 0.1641 -3604.86 -0.02 19.07 -0.17
12 0.1642 -3608.38 0.05 19.35 0.15
13 0.2403 -5540.57 -0.64 -1.34 0.08
14 0.2429 -5598.79 0.13 -2.39 0.05
15 0.2652 -6068.01 0.07 -12.09 0.00
16 0.2654 -6071.24 0.01 -12.20 -0.02
17 0.3390 -7117.92 0.01 -51.93 -0.05
18 0.3416 -7138.52 0.07 -53.43 0.01
19 0.4155 -7197.51 0.11 -100.35 0.02
20 0.9640 5412.67 0.01 -147.47 0.05
21 0.9831 5296.76 0.05 -140.85 -0.05
22 1.1252 2635.50 -0.04 -114.54 -0.01
23 1.1415 2201.68 0.02 -115.30 -0.06
24 1.2018 591.41 -0.17 -125.39 0.06
25 1.2042 529.85 -0.03 -126.13 -0.08
26 1.2179 182.56 0.01 -130.14 -0.02
27 1.2781 -1141.60 -0.01 -154.19 0.03
28 1.2947 -1429.50 -0.01 -162.51 -0.03
29 1.3574 -2119.83 0.20 -197.85 0.05
30 1.3575 -2120.07 0.04 -198.01 -0.10
31 1.3848 -2201.81 -0.08 -214.82 -0.09
32 2.0291 9906.62 0.15 -262.76 0.03
33 2.0291 9906.16 -0.13 -262.77 0.01
34 2.1136 8135.36 0.01 -251.42 -0.03
35 2.3512 3043.45 -0.03 -328.96 0.12
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.
15GE55 quality flag:2 Type: 7:4EEE 7:4EEE CLASSICAL axisobj 43.401 43.409 43.393 ecceobj 0.053 0.053 0.053 incobj 1.776 1.776 1.776 qmin 40.426 40.485 40.185 qmax 47.341 47.229 47.581 amean 43.725 43.726 43.736 amin 43.366 43.375 43.363 amax 44.125 44.118 44.114 emean 0.059 0.061 0.050 emin 0.045 0.050 0.029 emax 0.073 0.071 0.079 imean 1.002 1.016 1.027 imin 0.112 0.140 0.128 imax 1.572 1.632 1.632 excite_mean 0.062 0.064 0.054 fracstop 1.000 1.000 1.000 cjmean 3.094 3.093 3.095 libcent 0 180.3 181.1 -180.0 libamp 0 175.9 129.1 -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 180.6 192.1 190.9 kozaiamp 180.0 179.6 179.7