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: 15GB55
# Created Sat Apr 20 01:17:12 2024
# Orbit generated from Bernstein formalism
# Fitting 36 observations of 36
# Arc: 2.11y
# First observation: 2015/02/17
# Last observation: 2017/03/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000145 0.023561 -0.000016 0.004271 0.022965 0.000000
# Chi-squared of fit: 12.60 DOF: 66 RMS: 0.10
# Min/Max residuals: -0.31 0.40
# Exact a, adot, b, bdot, g, gdot:
1.599826E-05 2.321057E-02 2.818849E-06 4.186398E-03 2.291992E-02 -7.058155E-03
# Covariance matrix:
1.9130E-13 -1.0082E-13 -1.9049E-15 3.5595E-15 1.0241E-13 4.9314E-13
-1.0082E-13 3.6031E-13 -1.6942E-14 6.5788E-14 1.1407E-13 8.5373E-12
-1.9049E-15 -1.6942E-14 1.0901E-13 -9.8003E-14 -1.1465E-14 -6.4537E-13
3.5595E-15 6.5788E-14 -9.8003E-14 1.4689E-13 3.9629E-14 2.4702E-12
1.0241E-13 1.1407E-13 -1.1465E-14 3.9629E-14 1.9139E-13 5.1825E-12
4.9314E-13 8.5373E-12 -6.4537E-13 2.4702E-12 5.1825E-12 3.2085E-10
# lat0 lon0 xBary yBary zBary JD0
3.139887 -153.383205 0.838170 0.028508 -0.517166 2457071.105668
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 331.81661 +/- 0.033
Argument of Peri: 81.86614 +/- 0.058
Long of Asc Node: 188.96566 +/- 0.001
Inclination: 10.76708 +/- 0.001
Eccentricity: 0.41099516 +/- 0.0008
Semi-Major Axis: 62.35279275 +/- 0.0483
Time of Perihelion: 2471149.5404 +/- 2.7
Perihelion: 36.72609683 +/- 0.0572
Aphelion: 87.97948868 +/- 0.0843
Period (y) 492.3705 +/- 0.57
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.78910279 +/- 0.0007
Ecliptic Y -19.00063035 +/- 0.0004
Ecliptic Z 2.38992392 +/- 0.0000
Ecliptic XDOT 0.00201564 +/- 0.0000
Ecliptic YDOT -0.00209487 +/- 0.0000
Ecliptic ZDOT 0.00045324 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.15776705 +/- 0.0007
Geocenter to KBO 43.63017577 +/- 0.0008
# Hcoef: 8.47
The following table shows the complete astrometric record for 15GB55. 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 (15GB55) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.60489 13 43 20.530 -07 20 10.25 24.8r 15GB55 568 C~2lV9 2015 02 17.64586 13 43 20.459 -07 20 09.70 24.8r 15GB55 568 C~2lV9 2015 02 20.63905 13 43 15.021 -07 19 18.89 25.2r 15GB55 568 C~2lV9 2015 04 11.52247 13 40 27.578 -06 59 09.85 24.5r 15GB55 568 C~2lV9 2015 04 13.38609 13 40 19.721 -06 58 18.82 25.3r 15GB55 568 C~2lV9 2015 04 13.44737 13 40 19.450 -06 58 17.21 24.7r 15GB55 568 C~2lV9 2015 04 13.45145 13 40 19.427 -06 58 17.07 24.7r 15GB55 568 C~2lV9 2015 04 13.45555 13 40 19.417 -06 58 16.87 24.7r 15GB55 568 C~2lV9 2015 04 13.52960 13 40 19.087 -06 58 14.90 24.8r 15GB55 568 C~2lV9 2015 04 19.49744 13 39 53.732 -06 55 33.41 25.1r 15GB55 568 C~2lV9 2015 04 19.55519 13 39 53.488 -06 55 31.68 24.6r 15GB55 568 C~2lV9 2015 05 18.34948 13 37 58.651 -06 43 53.48 25.0r 15GB55 568 C~2lV9 2015 06 20.29948 13 36 33.554 -06 36 10.48 24.9r 15GB55 568 C~2lV9 2015 06 20.34029 13 36 33.494 -06 36 10.28 24.9r 15GB55 568 C~2lV9 2015 06 22.34439 13 36 30.711 -06 35 57.58 24.9r 15GB55 568 C~2lV9 2015 07 14.29673 13 36 21.301 -06 35 48.17 24.8r 15GB55 568 C~2lV9 2015 07 20.28959 13 36 25.636 -06 36 26.76 24.6r 15GB55 568 C~2lV9 2016 02 04.53833 13 48 58.584 -07 38 18.55 24.9w 15GB55 568 C~2lV9 2016 02 04.59350 13 48 58.554 -07 38 18.01 25.1w 15GB55 568 C~2lV9 2016 02 04.60621 13 48 58.546 -07 38 17.68 25.1w 15GB55 568 C~2lV9 2016 02 04.65482 13 48 58.510 -07 38 17.34 25.0w 15GB55 568 C~2lV9 2016 02 11.58929 13 48 53.125 -07 36 55.67 24.8w 15GB55 568 C~2lV9 2016 03 11.51709 13 47 49.813 -07 27 46.28 24.7w 15GB55 568 C~2lV9 2016 03 11.52342 13 47 49.779 -07 27 46.21 24.9w 15GB55 568 C~2lV9 2016 03 11.58318 13 47 49.591 -07 27 44.65 25.8w 15GB55 568 C~2lV9 2016 03 11.59678 13 47 49.545 -07 27 44.50 25.5w 15GB55 568 C~2lV9 2016 03 12.61050 13 47 46.302 -07 27 20.11 25.2w 15GB55 568 C~2lV9 2016 04 03.46957 13 46 24.791 -07 17 52.73 24.9w 15GB55 568 C~2lV9 2016 04 13.45991 13 45 42.832 -07 13 20.12 25.4w 15GB55 568 C~2lV9 2016 04 14.36209 13 45 38.968 -07 12 55.18 25.7w 15GB55 568 C~2lV9 2016 05 02.34774 13 44 22.697 -07 05 03.18 24.9w 15GB55 568 C~2lV9 2016 05 07.35110 13 44 02.366 -07 03 01.96 24.9w 15GB55 568 C~2lV9 2016 05 29.34365 13 42 44.088 -06 55 35.54 25.0w 15GB55 568 C~2lV9 2016 06 04.40605 13 42 26.863 -06 54 03.56 25.0w 15GB55 568 C~2lV9 2017 02 27.64948 13 53 54.289 -07 47 28.24 15GB55 568 C~2lV9 2017 03 30.51119 13 52 14.058 -07 35 08.99 15GB55 568 C~2lV9
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 0.00 0.00 0.01
2 0.0001 -1.18 0.07 0.13 -0.09
3 0.0083 -94.93 -0.01 18.56 -0.11
4 0.1449 -2855.19 -0.10 251.41 -0.01
5 0.1500 -2982.73 0.09 256.90 0.13
6 0.1502 -2987.07 0.02 256.95 0.04
7 0.1502 -2987.44 -0.06 256.96 0.04
8 0.1502 -2987.66 0.01 257.09 0.16
9 0.1504 -2992.95 -0.11 257.16 0.05
10 0.1667 -3403.41 0.05 271.83 -0.31
11 0.1669 -3407.42 0.06 272.14 -0.12
12 0.2457 -5255.29 0.04 306.32 0.00
13 0.3359 -6605.87 -0.02 279.60 0.10
14 0.3360 -6606.77 0.05 279.46 0.04
15 0.3415 -6650.07 -0.07 276.29 0.12
16 0.4016 -6784.33 0.01 234.29 0.09
17 0.4180 -6710.07 -0.06 221.69 -0.04
18 0.9635 5085.79 0.11 778.81 0.01
19 0.9637 5085.18 0.11 779.15 -0.01
20 0.9637 5084.95 0.03 779.42 0.18
21 0.9639 5084.33 -0.05 779.55 -0.02
22 0.9828 4980.40 -0.09 827.42 -0.02
23 1.0620 3904.54 0.01 1005.75 -0.04
24 1.0621 3904.04 -0.15 1005.64 -0.19
25 1.0622 3900.87 -0.11 1006.10 -0.02
26 1.0623 3900.18 -0.07 1005.99 -0.19
27 1.0650 3846.40 -0.02 1011.60 0.04
28 1.1249 2510.91 -0.09 1109.25 -0.03
29 1.1522 1830.30 0.40 1140.88 -0.21
30 1.1547 1767.68 -0.02 1143.62 0.03
31 1.2040 538.72 -0.21 1178.33 0.12
32 1.2176 212.73 -0.01 1183.13 0.09
33 1.2779 -1035.32 0.00 1182.02 0.17
34 1.2945 -1307.75 0.11 1175.81 0.00
35 2.0289 9396.59 0.06 1822.95 0.02
36 2.1134 7738.64 -0.03 1987.85 -0.04
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.
15GB55 quality flag:2 Type: SCATNEAR 3:1EE SCATNEAR axisobj 61.561 61.684 61.438 ecceobj 0.407 0.409 0.405 incobj 10.820 10.820 10.820 qmin 35.978 35.932 36.124 qmax 91.725 91.347 89.477 amean 62.626 62.632 62.049 amin 61.406 61.515 61.312 amax 64.126 63.960 63.187 emean 0.407 0.415 0.404 emin 0.387 0.403 0.391 emax 0.430 0.428 0.418 imean 11.474 10.833 11.353 imin 10.486 10.591 10.548 imax 12.295 11.025 12.055 excite_mean 0.453 0.456 0.449 fracstop 1.000 1.000 1.000 cjmean 3.063 3.058 3.060 libcent 0 -180.0 180.3 -180.0 libamp 0 -180.0 166.5 -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 178.4 173.7 182.1 kozaiamp 180.0 180.0 180.0