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: 182926
# Created Wed Dec 25 02:06:55 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 16.96y
# First observation: 2002/03/20
# Last observation: 2019/03/07
# Chi-squared of fit: 61.03 DOF: 48 RMS: 0.27
# Min/Max residuals: -0.49 0.86
# Exact a, adot, b, bdot, g, gdot:
1.732302E-05 2.210050E-02 -3.751520E-06 -2.340748E-04 2.318350E-02 -3.335735E-03
# Covariance matrix:
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
# lat0 lon0 xBary yBary zBary JD0
2.149539 161.660573 -0.310027 0.035465 -0.946625 2452353.786933
# Heliocentric elements and errors
Epoch: 2452354.5000 = 2002/03/21
Mean Anomaly: 294.02332 +/- 0.000
Argument of Peri: 188.75232 +/- 0.000
Long of Asc Node: 55.42059 +/- 0.000
Inclination: 2.19485 +/- 0.000
Eccentricity: 0.14487442 +/- 0.0000
Semi-Major Axis: 45.92136697 +/- 0.0000
Time of Perihelion: 2473185.4277 +/- 0.0
Perihelion: 39.26853561 +/- 0.0000
Aphelion: 52.57419834 +/- 0.0000
Period (y) 311.1934 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.91058307 +/- 0.0000
Ecliptic Y 13.57102382 +/- 0.0000
Ecliptic Z 1.61770172 +/- 0.0000
Ecliptic XDOT -0.00045695 +/- 0.0000
Ecliptic YDOT -0.00260208 +/- 0.0000
Ecliptic ZDOT -0.00004218 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.08281618 +/- 0.0000
Geocenter to KBO 43.13425259 +/- 0.0000
# Hcoef: 7.47
The following table shows the complete astrometric record for 182926. 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 (182926) followed by the observatory code and reference code for the source of the astrometry.
2002 03 20.28619 10 55 38.99 +09 10 36.9 23.3R 182926 568 Cf5861 2002 03 20.32150 10 55 38.85 +09 10 37.5 23.5R 182926 568 Cf5861 2002 03 20.35591 10 55 38.71 +09 10 38.3 23.3R 182926 568 Cf5861 2002 03 22.32602 10 55 30.56 +09 11 25.4 182926 568 Cf5861 2002 03 22.38377 10 55 30.28 +09 11 27.1 182926 568 Cf5861 2002 06 08.17531 10 53 09.04 +09 22 22.9 23. R 182926 675 Cf8969 2002 06 08.17878 10 53 09.03 +09 22 22.7 182926 675 Cf8969 2002 06 08.21956 10 53 09.10 +09 22 22.4 182926 675 Cf8969 2002 06 08.22527 10 53 09.09 +09 22 22.3 182926 675 Cf8969 2003 03 30.22178 10 59 43.89 +08 44 22.2 23.2R 182926 695 Ch8263 2003 03 30.31740 10 59 43.51 +08 44 24.1 182926 695 Ch8263 2003 03 31.22062 10 59 40.02 +08 44 44.4 182926 695 Ch8263 2004 01 24.33480 11 08 52.77 +07 46 10.2 182926 675 Ck0023 2004 01 24.34232 11 08 52.76 +07 46 10.5 182926 675 Ck0023 2004 01 24.40443 11 08 52.56 +07 46 11.6 182926 675 Ck0023 2004 01 24.41091 11 08 52.53 +07 46 11.9 182926 675 Ck0023 2008 03 04.33783 11 25 29.66 +05 56 59.5 182926 695 Cy7588 2008 03 04.43943 11 25 29.22 +05 57 03.1 182926 695 Cy7588 2008 03 05.40255 11 25 25.01 +05 57 29.8 182926 695 Cy7588 2015 03 23.18619 11 58 34.50 +02 11 57.6 23.8R 182926 695 C~1QSN 2015 03 23.24976 11 58 34.18 +02 11 59.1 182926 695 C~1QSN 2015 03 23.30897 11 58 33.91 +02 12 01.0 182926 695 C~1QSN 2017 03 23.17431 12 08 37.83 +01 02 37.5 24.4V 182926 W84 C~2yTZ 2017 03 23.24308 12 08 37.52 +01 02 39.5 182926 W84 C~2yTZ 2017 03 24.21933 12 08 33.16 +01 03 07.5 182926 W84 C~2yTZ 2019 03 07.245000 12 20 01.58 -00 15 39.4 23.4G 182926 705 C~31DE 2019 03 07.282010 12 20 01.42 -00 15 38.4 23.9G 182926 705 C~31DE
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 -0.15 0.00 0.86
2 0.0001 0.00 0.00 0.00 0.59
3 0.0002 0.00 0.10 0.00 0.55
4 0.0056 0.00 0.43 0.00 -0.13
5 0.0057 0.00 -0.13 0.00 0.18
6 0.2187 0.00 0.02 0.00 -0.19
7 0.2187 0.00 -0.19 0.00 -0.35
8 0.2188 0.00 0.17 0.00 -0.22
9 0.2189 0.00 -0.08 0.00 -0.26
10 1.0265 0.00 -0.09 0.00 0.01
11 1.0268 0.00 -0.09 0.00 -0.24
12 1.0293 0.00 0.03 0.00 -0.12
13 1.8482 0.00 0.04 0.00 -0.29
14 1.8482 0.00 0.23 0.00 -0.15
15 1.8484 0.00 0.12 0.00 -0.36
16 1.8484 0.00 -0.03 0.00 -0.20
17 5.9577 0.00 -0.49 0.00 -0.31
18 5.9580 0.00 -0.32 0.00 0.44
19 5.9606 0.00 -0.17 0.00 0.05
20 13.0073 0.00 0.65 0.00 0.24
21 13.0074 0.00 0.15 0.00 -0.08
22 13.0076 0.00 0.11 0.00 0.14
23 15.0086 0.00 -0.03 0.00 -0.02
24 15.0088 0.00 0.01 0.00 0.00
25 15.0115 0.00 -0.02 0.00 0.02
26 16.9636 0.00 -0.18 0.00 -0.06
27 16.9637 0.00 -0.22 0.00 -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.
182926 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.585 45.584 45.585 ecceobj 0.144 0.144 0.144 incobj 2.196 2.196 2.196 qmin 38.562 38.575 38.588 qmax 53.430 53.459 53.482 amean 45.826 45.825 45.826 amin 45.439 45.427 45.441 amax 46.259 46.259 46.263 emean 0.141 0.141 0.141 emin 0.127 0.127 0.126 emax 0.156 0.156 0.156 imean 1.409 1.409 1.409 imin 0.736 0.736 0.737 imax 1.894 1.894 1.895 excite_mean 0.144 0.144 0.144 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 181.7 181.7 181.6 kozaiamp 179.9 180.0 179.9