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: 01QA298 # Created Fri Nov 22 02:08:15 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 25 observations of 25 # Arc: 14.14y # First observation: 2000/07/29 # Last observation: 2014/09/19 # Chi-squared of fit: 87.17 DOF: 44 RMS: 0.33 # Min/Max residuals: -0.66 1.18 # Exact a, adot, b, bdot, g, gdot: 1.607631E-05 2.658815E-02 -6.433273E-06 -1.136721E-02 2.659632E-02 -2.625323E-03 # Covariance matrix: 4.4378E-13 -2.7659E-13 -1.3125E-13 1.1583E-13 -9.9278E-14 -6.1293E-13 -2.7659E-13 2.7974E-13 1.3659E-13 -1.2077E-13 2.5497E-13 6.3588E-13 -1.3125E-13 1.3659E-13 2.2926E-13 -7.1931E-14 1.1822E-13 3.1284E-13 1.1583E-13 -1.2077E-13 -7.1931E-14 5.4211E-14 -1.0553E-13 -2.7655E-13 -9.9278E-14 2.5497E-13 1.1822E-13 -1.0553E-13 8.9388E-13 5.4146E-13 -6.1293E-13 6.3588E-13 3.1284E-13 -2.7655E-13 5.4146E-13 1.4569E-12 # lat0 lon0 xBary yBary zBary JD0 -5.126003 -51.323395 0.047790 -0.090786 -1.010100 2451754.708683 # Heliocentric elements and errors Epoch: 2451754.5000 = 2000/07/29 Mean Anomaly: 335.72233 +/- 0.014 Argument of Peri: 228.09586 +/- 0.019 Long of Asc Node: 117.12507 +/- 0.000 Inclination: 23.67342 +/- 0.000 Eccentricity: 0.18985065 +/- 0.0001 Semi-Major Axis: 46.23796814 +/- 0.0076 Time of Perihelion: 2459499.1374 +/- 26.7 Perihelion: 37.45965988 +/- 0.0077 Aphelion: 55.01627640 +/- 0.0101 Period (y) 314.4172 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.00540749 +/- 0.0008 Ecliptic Y -30.05279516 +/- 0.0010 Ecliptic Z -3.35959621 +/- 0.0001 Ecliptic XDOT 0.00189608 +/- 0.0000 Ecliptic YDOT 0.00200778 +/- 0.0000 Ecliptic ZDOT -0.00114118 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.60986569 +/- 0.0010 Geocenter to KBO 37.59928350 +/- 0.0013 # Hcoef: 7.32
The following table shows the complete astrometric record for 01QA298. 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 (01QA298) followed by the observatory code and reference code for the source of the astrometry.
2000 07 29.20794 20 50 14.10 -23 02 00.9 22.2R 01QA298 807 Cg3217 2000 07 29.32121 20 50 13.48 -23 02 04.1 01QA298 807 Cg3217 2001 08 19.11360 20 55 35.00 -23 23 34.6 21.8R 01QA298 807 Cd7926 2001 08 19.19162 20 55 34.59 -23 23 36.1 01QA298 807 Cd7926 2001 08 20.10093 20 55 29.95 -23 23 58.2 01QA298 807 Cd7926 2001 08 20.17923 20 55 29.56 -23 24 00.1 01QA298 807 Cd7926 2002 08 09.15297 21 03 41.16 -23 30 41.9 22.1R 01QA298 807 Cg3217 2002 08 09.30253 21 03 40.38 -23 30 45.9 01QA298 807 Cg3217 2002 08 11.17095 21 03 30.44 -23 31 37.2 01QA298 807 Cg3217 2002 08 12.16024 21 03 25.19 -23 32 03.4 01QA298 807 Cg3217 2002 08 12.23067 21 03 24.81 -23 32 05.3 01QA298 807 Cg3217 2008 08 01.34020 21 48 41.15 -24 08 30.3 22.4R 01QA298 688 Cz3488 2008 08 01.39365 21 48 40.87 -24 08 31.9 01QA298 688 Cz3488 2010 08 13.14832 22 02 50.60 -24 18 13.5 22.1R 01QA298 807 ~0NFN 2010 08 13.22114 22 02 50.20 -24 18 16.2 01QA298 807 ~0NFN 2010 08 13.25304 22 02 50.01 -24 18 17.2 01QA298 807 ~0NFN 2014 07 27.53780 22 34 34.250 -23 57 19.29 22.7G 01QA298 F51 C~343g 2014 07 29.50069 22 34 25.880 -23 58 39.40 22.8G 01QA298 F51 C~343g 2014 07 29.53508 22 34 25.739 -23 58 40.63 23.5G 01QA298 F51 C~343g 2014 07 30.52364 22 34 21.434 -23 59 20.69 23.9G 01QA298 F51 C~343g 2014 09 18.41153 22 30 10.471 -24 27 37.28 23.8G 01QA298 F51 C~343g 2014 09 18.42270 22 30 10.424 -24 27 37.10 22.8G 01QA298 F51 C~343g 2014 09 19.04024 22 30 07.43 -24 27 50.9 24.0V 01QA298 W84 C~2J8m 2014 09 19.10771 22 30 07.10 -24 27 52.3 01QA298 W84 C~2J8m 2014 09 19.20425 22 30 06.62 -24 27 54.5 01QA298 W84 C~2J8m
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 -0.04 0.00 -0.08
2 0.0003 0.00 -0.18 0.00 -0.18
3 1.0566 0.00 -0.04 0.00 -0.16
4 1.0568 0.00 -0.11 0.00 0.22
5 1.0593 0.00 -0.34 0.00 -0.12
6 1.0595 0.00 -0.12 0.00 -0.15
7 2.0286 0.00 0.13 0.00 -0.44
8 2.0290 0.00 0.56 0.00 -0.33
9 2.0341 0.00 0.19 0.00 -0.44
10 2.0368 0.00 0.06 0.00 0.12
11 2.0370 0.00 0.05 0.00 0.11
12 8.0086 0.00 -0.14 0.00 0.90
13 8.0087 0.00 -0.21 0.00 1.18
14 10.0395 0.00 0.24 0.00 0.54
15 10.0397 0.00 0.04 0.00 0.37
16 10.0398 0.00 -0.27 0.00 0.48
17 13.9941 0.00 0.07 0.00 -0.66
18 13.9994 0.00 -0.17 0.00 -0.36
19 13.9995 0.00 -0.00 0.00 -0.18
20 14.0022 0.00 -0.14 0.00 0.17
21 14.1388 0.00 -0.04 0.00 -0.45
22 14.1388 0.00 0.09 0.00 -0.01
23 14.1405 0.00 0.13 0.00 -0.22
24 14.1407 0.00 0.18 0.00 -0.11
25 14.1410 0.00 0.15 0.00 -0.19
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.
01QA298 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.339 46.339 46.339 ecceobj 0.191 0.191 0.191 incobj 23.657 23.657 23.657 qmin 36.750 36.750 36.750 qmax 56.157 56.142 56.157 amean 46.249 46.248 46.248 amin 45.853 45.842 45.853 amax 46.719 46.715 46.705 emean 0.187 0.187 0.187 emin 0.172 0.172 0.172 emax 0.203 0.203 0.203 imean 22.065 22.065 22.065 imin 21.636 21.635 21.638 imax 22.533 22.541 22.544 excite_mean 0.420 0.420 0.420 fracstop 1.000 1.000 1.000 cjmean 2.909 2.909 2.909 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 178.9 179.0 179.0 kozaiamp 180.0 180.0 180.0