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: 149348
# Created Tue Dec 31 02:06:53 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 26
# Arc: 5.81y
# First observation: 2002/11/07
# Last observation: 2008/08/28
# Chi-squared of fit: 23.50 DOF: 42 RMS: 0.17
# Min/Max residuals: -0.31 0.40
# Exact a, adot, b, bdot, g, gdot:
1.613175E-05 2.515703E-02 -3.164693E-07 -1.015749E-03 2.481359E-02 2.342547E-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
1.956694 56.103648 0.199615 0.033028 -0.967347 2452585.824573
# Heliocentric elements and errors
Epoch: 2452586.5000 = 2002/11/08
Mean Anomaly: 38.98755 +/- 0.000
Argument of Peri: 91.11569 +/- 0.000
Long of Asc Node: 275.71010 +/- 0.000
Inclination: 2.97838 +/- 0.000
Eccentricity: 0.12268853 +/- 0.0000
Semi-Major Axis: 45.27759338 +/- 0.0000
Time of Perihelion: 2440534.8404 +/- 0.0
Perihelion: 39.72255219 +/- 0.0000
Aphelion: 50.83263457 +/- 0.0000
Period (y) 304.6725 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 23.16615845 +/- 0.0000
Ecliptic Y 34.12927961 +/- 0.0000
Ecliptic Z 1.37601705 +/- 0.0000
Ecliptic XDOT -0.00216525 +/- 0.0000
Ecliptic YDOT 0.00176217 +/- 0.0000
Ecliptic ZDOT -0.00010298 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.27187277 +/- 0.0000
Geocenter to KBO 40.30048432 +/- 0.0000
# Hcoef: 6.36
The following table shows the complete astrometric record for 149348. 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 (149348) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.32383 03 33 09.91 +21 10 50.0 21.8R 149348 695 Cg8319 2002 11 07.41952 03 33 09.42 +21 10 48.4 149348 695 Cg8319 2002 11 27.18611 03 31 27.61 +21 04 46.5 22.2R 149348 688 Cg8319 2002 11 27.23650 03 31 27.36 +21 04 45.8 149348 688 Cg8319 2002 11 28.17513 03 31 22.62 +21 04 28.3 21.9R 149348 688 Cg8319 2002 11 28.27016 03 31 22.12 +21 04 26.1 149348 688 Cg8319 2002 12 02.20370 03 31 02.33 +21 03 12.5 22.0R 149348 688 Cg8319 2002 12 02.30473 03 31 01.81 +21 03 10.8 149348 688 Cg8319 2003 01 03.09803 03 28 48.23 +20 54 14.4 22.4R 149348 688 Ch0066 2003 01 03.21203 03 28 47.86 +20 54 13.2 149348 688 Ch0066 2003 10 23.40258 03 40 26.96 +21 31 28.8 21.8R 149348 695 Cj4694 2003 10 23.49117 03 40 26.55 +21 31 27.5 149348 695 Cj4694 2003 11 21.27171 03 38 03.39 +21 23 38.4 21.6R 149348 695 Cj4694 2003 11 21.34909 03 38 02.98 +21 23 37.0 149348 695 Cj4694 2005 10 01.40867 03 53 49.66 +22 05 18.5 22.5R 149348 688 Co3857 2005 10 01.48385 03 53 49.44 +22 05 18.1 149348 688 Co3857 2006 12 21.12583 03 53 40.89 +22 01 00.8 22.2R 149348 695 Ct5482 2006 12 21.21609 03 53 40.49 +22 00 59.6 149348 695 Ct5482 2007 09 16.49379 04 06 15.65 +22 32 23.5 22.2R 149348 675 Cy7541 2007 09 17.42869 04 06 14.55 +22 32 22.2 149348 675 Cy7541 2008 08 28.20726 04 12 12.31 +22 43 34.1 23.4R 149348 250 S~06He 2008 08 28.21351 04 12 12.32 +22 43 34.1 149348 250 S~06He 2008 08 28.22462 04 12 12.33 +22 43 34.2 149348 250 S~06He 2008 08 28.23087 04 12 12.34 +22 43 34.2 149348 250 S~06He 2022 11 28.410580 05 30 00.387 +23 56 13.95 22.7G 149348 G37 C~68aY 2022 11 28.459630 05 30 00.136 +23 56 13.59 149348 G37 C~68aY
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 -0.07
2 0.0003 0.00 0.05 0.00 0.01
3 0.0544 0.00 -0.19 0.00 -0.04
4 0.0545 0.00 -0.03 0.00 0.20
5 0.0571 0.00 0.40 0.00 0.31
6 0.0573 0.00 0.24 0.00 -0.11
7 0.0681 0.00 0.00 0.00 -0.06
8 0.0684 0.00 -0.14 0.00 0.12
9 0.1554 0.00 -0.07 0.00 -0.00
10 0.1558 0.00 -0.11 0.00 0.38
11 0.9585 0.00 -0.11 0.00 -0.26
12 0.9587 0.00 -0.20 0.00 -0.31
13 1.0375 0.00 -0.04 0.00 -0.19
14 1.0377 0.00 -0.06 0.00 -0.20
15 2.8996 0.00 0.05 0.00 0.12
16 2.8998 0.00 0.02 0.00 0.23
17 4.1199 0.00 -0.06 0.00 -0.21
18 4.1202 0.00 0.10 0.00 -0.05
19 4.8574 0.00 0.24 0.00 -0.21
20 4.8600 0.00 0.32 0.00 -0.13
21 5.8067 0.00 -0.14 0.00 0.19
22 5.8067 0.00 -0.07 0.00 0.16
23 5.8067 0.00 -0.07 0.00 0.22
24 5.8067 0.00 0.00 0.00 0.20
25 20.0577 0.00 ( -6.05) 0.00 ( -0.25)
26 20.0579 0.00 ( -6.10) 0.00 ( -0.41)
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.
149348 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.498 45.498 45.497 ecceobj 0.128 0.128 0.128 incobj 2.982 2.982 2.982 qmin 38.770 38.821 38.813 qmax 51.886 51.857 51.693 amean 45.104 45.106 45.101 amin 44.698 44.711 44.702 amax 45.567 45.566 45.543 emean 0.122 0.121 0.122 emin 0.106 0.105 0.107 emax 0.139 0.138 0.137 imean 4.794 4.792 4.836 imin 4.116 4.115 4.160 imax 5.394 5.398 5.398 excite_mean 0.148 0.147 0.148 fracstop 1.000 1.000 1.000 cjmean 3.088 3.088 3.088 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 180.8 180.6 182.3 kozaiamp 180.0 179.9 179.9