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: 05JH177
# Created Wed Apr 24 01:12:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 8.96y
# First observation: 2005/05/11
# Last observation: 2014/04/26
# Chi-squared of fit: 50.11 DOF: 48 RMS: 0.24
# Min/Max residuals: -0.76 0.47
# Exact a, adot, b, bdot, g, gdot:
1.669273E-05 2.565357E-02 -3.195207E-07 1.526692E-06 2.506424E-02 8.947561E-04
# Covariance matrix:
1.9293E-13 -1.7268E-13 6.0824E-16 -3.5141E-16 2.6424E-13 -6.0765E-13
-1.7268E-13 2.5620E-13 -1.1715E-15 6.4873E-16 -5.1628E-13 9.4425E-13
6.0824E-16 -1.1715E-15 8.8980E-14 -1.4336E-14 4.6019E-15 -4.0583E-15
-3.5141E-16 6.4873E-16 -1.4336E-14 5.9018E-15 -2.3082E-15 2.2869E-15
2.6424E-13 -5.1628E-13 4.6019E-15 -2.3082E-15 2.0905E-12 -1.7781E-12
-6.0765E-13 9.4425E-13 -4.0583E-15 2.2869E-15 -1.7781E-12 3.5901E-12
# lat0 lon0 xBary yBary zBary JD0
3.351100 -152.654947 -0.396120 0.054234 -0.924027 2453501.510413
# Heliocentric elements and errors
Epoch: 2453502.5000 = 2005/05/12
Mean Anomaly: 24.10902 +/- 0.033
Argument of Peri: 61.06901 +/- 0.038
Long of Asc Node: 117.41590 +/- 0.003
Inclination: 3.27475 +/- 0.000
Eccentricity: 0.10063284 +/- 0.0002
Semi-Major Axis: 44.86079778 +/- 0.0135
Time of Perihelion: 2446152.6922 +/- 10.5
Perihelion: 40.34632807 +/- 0.0158
Aphelion: 49.37526749 +/- 0.0180
Period (y) 300.4752 +/- 0.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.02280828 +/- 0.0020
Ecliptic Y -19.07375712 +/- 0.0010
Ecliptic Z 2.33215329 +/- 0.0001
Ecliptic XDOT 0.00120121 +/- 0.0000
Ecliptic YDOT -0.00254097 +/- 0.0000
Ecliptic ZDOT 0.00000593 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.82753328 +/- 0.0019
Geocenter to KBO 39.89749496 +/- 0.0023
# Hcoef: 6.86
The following table shows the complete astrometric record for 05JH177. 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 (05JH177) followed by the observatory code and reference code for the source of the astrometry.
2005 05 11.00967 13 46 23.13 -07 23 55.7 21.8R 05JH177 807 Cn6562 2005 05 11.09898 13 46 22.76 -07 23 53.5 05JH177 807 Cn6562 2005 06 01.30746 13 45 03.11 -07 17 23.8 23.0R 05JH177 568 Cn6562 2005 06 01.36340 13 45 02.92 -07 17 23.0 05JH177 568 Cn6562 2005 06 02.30361 13 44 59.98 -07 17 09.8 05JH177 568 Cn6562 2005 06 09.08398 13 44 40.55 -07 15 46.3 22.1R 05JH177 304 Cn7092 2005 06 09.13054 13 44 40.40 -07 15 45.6 05JH177 304 Cn7092 2006 04 22.22848 13 53 22.83 -08 02 56.7 22.7R 05JH177 304 Cr3594 2006 04 22.28730 13 53 22.54 -08 02 54.6 05JH177 304 Cr3594 2006 04 26.08861 13 53 04.83 -08 01 18.0 22.2R 05JH177 807 Cr3594 2006 04 26.17173 13 53 04.45 -08 01 16.1 05JH177 807 Cr3594 2006 04 27.14867 13 52 59.93 -08 00 51.1 05JH177 807 Cr3594 2006 04 27.19828 13 52 59.69 -08 00 49.9 05JH177 807 Cr3594 2006 05 01.33550 13 52 40.65 -07 59 07.3 22.9R 05JH177 695 Cr3594 2006 05 01.41835 13 52 40.25 -07 59 05.4 05JH177 695 Cr3594 2006 05 02.40406 13 52 35.76 -07 58 41.7 05JH177 695 Cr3594 2007 04 21.10198 13 59 03.30 -08 34 29.0 21.6R 05JH177 807 Cv1537 2007 04 22.21945 13 58 58.04 -08 33 59.6 05JH177 807 Cv1537 2007 04 22.29239 13 58 57.69 -08 33 58.5 05JH177 807 Cv1537 2007 05 08.15408 13 57 44.61 -08 27 30.0 05JH177 304 Cu8944 2007 05 08.21496 13 57 44.33 -08 27 28.8 05JH177 304 Cu8944 2010 04 20.34690 14 15 46.46 -10 04 58.9 23.1R 05JH177 688 C~0GVH 2010 04 20.40683 14 15 46.15 -10 04 57.2 05JH177 688 C~0GVH 2014 04 23.26777 14 37 45.75 -11 57 54.3 05JH177 W84 C~1Til 2014 04 24.28957 14 37 40.98 -11 57 30.9 24.5V 05JH177 W84 C~1Til 2014 04 25.30628 14 37 36.22 -11 57 07.9 05JH177 W84 C~1Til 2014 04 26.22425 14 37 31.87 -11 56 46.8 05JH177 W84 C~1Til
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 -0.08 0.00 0.10
2 0.0002 0.00 0.17 0.00 0.34
3 0.0583 0.00 0.14 0.00 0.16
4 0.0585 0.00 0.01 0.00 0.16
5 0.0610 0.00 -0.03 0.00 0.15
6 0.0796 0.00 0.09 0.00 -0.16
7 0.0797 0.00 -0.28 0.00 0.04
8 0.9479 0.00 -0.15 0.00 -0.11
9 0.9481 0.00 -0.31 0.00 0.47
10 0.9585 0.00 -0.39 0.00 -0.08
11 0.9587 0.00 -0.20 0.00 -0.27
12 0.9614 0.00 0.01 0.00 0.08
13 0.9615 0.00 -0.07 0.00 0.03
14 0.9728 0.00 0.39 0.00 0.24
15 0.9731 0.00 0.15 0.00 0.10
16 0.9758 0.00 0.28 0.00 -0.17
17 1.9441 0.00 0.30 0.00 -0.76
18 1.9472 0.00 0.00 0.00 0.04
19 1.9474 0.00 -0.04 0.00 -0.73
20 1.9908 0.00 0.10 0.00 0.15
21 1.9910 0.00 0.06 0.00 -0.05
22 4.9427 0.00 -0.06 0.00 -0.03
23 4.9429 0.00 -0.44 0.00 0.19
24 8.9507 0.00 -0.23 0.00 0.01
25 8.9535 0.00 0.08 0.00 0.11
26 8.9563 0.00 0.39 0.00 -0.07
27 8.9588 0.00 -0.05 0.00 0.14
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.
05JH177 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.253 44.253 44.253 ecceobj 0.090 0.090 0.090 incobj 3.275 3.275 3.275 qmin 39.631 39.603 39.599 qmax 49.905 49.826 49.804 amean 44.552 44.555 44.551 amin 44.179 44.165 44.165 amax 44.976 44.974 44.958 emean 0.087 0.088 0.087 emin 0.069 0.069 0.067 emax 0.110 0.109 0.108 imean 1.820 1.825 1.819 imin 1.145 1.131 1.150 imax 2.545 2.558 2.545 excite_mean 0.093 0.094 0.093 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 194.8 194.8 194.3 kozaiamp 180.0 180.0 180.0