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: 99JA132 # Created Wed Nov 27 02:07:58 2024 # Orbit generated from Bernstein formalism # Fitting 41 observations of 41 # Arc: 58.81d # First observation: 1999/03/21 # Last observation: 1999/05/19 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.027360 -0.000001 -0.002618 0.023862 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 24.93 DOF: 77 RMS: 0.14 # Min/Max residuals: -0.30 0.46 # Exact a, adot, b, bdot, g, gdot: 1.467650E-05 2.098275E-02 -2.110259E-06 -2.637523E-03 2.289686E-02 1.141484E-02 # Covariance matrix: 5.9883E-13 1.5031E-10 -4.8615E-15 9.0288E-13 2.0058E-11 -2.8155E-09 1.5031E-10 2.0645E-07 -7.2203E-12 1.3367E-09 2.6125E-08 -4.0800E-06 -4.8615E-15 -7.2203E-12 4.6162E-13 -3.0527E-12 -8.9984E-13 1.4726E-10 9.0288E-13 1.3367E-09 -3.0527E-12 3.0240E-11 1.6667E-10 -2.7237E-08 2.0058E-11 2.6125E-08 -8.9984E-13 1.6667E-10 3.3244E-09 -5.1038E-07 -2.8155E-09 -4.0800E-06 1.4726E-10 -2.7237E-08 -5.1038E-07 8.2593E-05 # lat0 lon0 xBary yBary zBary JD0 -0.181713 -177.641589 0.036616 -0.003430 -1.003624 2451258.803602 # Heliocentric elements and errors Epoch: 2451250.5000 = 1999/03/13 Mean Anomaly: 36.01420 +/- 32.292 Argument of Peri: 86.94373 +/- 0.545 Long of Asc Node: 0.90316 +/- 0.032 Inclination: 7.19075 +/- 0.162 Eccentricity: 0.52090854 +/- 0.4079 Semi-Major Axis: 58.81171960 +/- 32.4296 Time of Perihelion: 2434770.1860 +/- 5705.1 Perihelion: 28.17619246 +/- 28.5806 Aphelion: 89.44724673 +/- 54.8467 Period (y) 451.0285 +/- 373.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -44.63293752 +/- 0.1099 Ecliptic Y -1.80213744 +/- 0.0045 Ecliptic Z -0.13857892 +/- 0.0003 Ecliptic XDOT -0.00126166 +/- 0.0011 Ecliptic YDOT -0.00255411 +/- 0.0000 Ecliptic ZDOT -0.00031969 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.66951998 +/- 0.1098 Geocenter to KBO 43.67410558 +/- 0.1100 # Hcoef: 7.68
The following table shows the complete astrometric record for 99JA132. 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 (99JA132) followed by the observatory code and reference code for the source of the astrometry.
1999 03 21.302859 12 08 22.02 -01 06 16.7 99JA132 645 C~1fK7 1999 03 21.303692 12 08 22.02 -01 06 16.7 99JA132 645 C~1fK7 1999 03 21.306181 12 08 22.01 -01 06 16.6 99JA132 645 C~1fK7 1999 05 10.06595 12 05 15.04 -00 47 16.8 23.9R 99JA132 807 Ca5619 1999 05 10.07970 12 05 15.01 -00 47 16.5 24.2R 99JA132 807 Ca5619 1999 05 10.12422 12 05 14.87 -00 47 15.6 24.0R 99JA132 807 Ca5619 1999 05 10.13108 12 05 14.87 -00 47 15.7 23.8R 99JA132 807 Ca5619 1999 05 11.09815 12 05 12.33 -00 47 00.4 25.1R 99JA132 807 Ca5619 1999 05 11.11203 12 05 12.29 -00 47 00.1 24.0R 99JA132 807 Ca5619 1999 05 11.13300 12 05 12.24 -00 46 59.9 23.9R 99JA132 807 Ca5619 1999 05 11.14020 12 05 12.21 -00 46 59.6 24.1R 99JA132 807 Ca5619 1999 05 11.15394 12 05 12.17 -00 46 59.5 23.9R 99JA132 807 Ca5619 1999 05 11.16081 12 05 12.16 -00 46 59.4 23.8R 99JA132 807 Ca5619 1999 05 11.16768 12 05 12.14 -00 46 59.5 24.4R 99JA132 807 Ca5619 1999 05 18.03312 12 04 55.93 -00 45 23.2 24.2R 99JA132 807 Ca5619 1999 05 18.04000 12 04 55.92 -00 45 23.2 23.8R 99JA132 807 Ca5619 1999 05 18.04696 12 04 55.89 -00 45 23.1 24.3R 99JA132 807 Ca5619 1999 05 18.05383 12 04 55.86 -00 45 22.8 24.1R 99JA132 807 Ca5619 1999 05 18.06872 12 04 55.87 -00 45 22.7 24.1R 99JA132 807 Ca5619 1999 05 18.12638 12 04 55.71 -00 45 21.7 24.1R 99JA132 807 Ca5619 1999 05 18.13360 12 04 55.71 -00 45 22.0 24.1R 99JA132 807 Ca5619 1999 05 18.14048 12 04 55.68 -00 45 21.8 23.9R 99JA132 807 Ca5619 1999 05 18.14735 12 04 55.65 -00 45 21.6 24.2R 99JA132 807 Ca5619 1999 05 18.15422 12 04 55.64 -00 45 21.5 24.1R 99JA132 807 Ca5619 1999 05 19.00538 12 04 53.88 -00 45 10.8 23.6R 99JA132 807 Ca5619 1999 05 19.01225 12 04 53.87 -00 45 11.0 23.6R 99JA132 807 Ca5619 1999 05 19.01971 12 04 53.85 -00 45 10.8 23.8R 99JA132 807 Ca5619 1999 05 19.02658 12 04 53.83 -00 45 10.7 23.7R 99JA132 807 Ca5619 1999 05 19.03345 12 04 53.84 -00 45 10.7 24.0R 99JA132 807 Ca5619 1999 05 19.04032 12 04 53.81 -00 45 10.7 23.5R 99JA132 807 Ca5619 1999 05 19.04719 12 04 53.79 -00 45 10.6 23.7R 99JA132 807 Ca5619 1999 05 19.05406 12 04 53.78 -00 45 10.5 24.0R 99JA132 807 Ca5619 1999 05 19.06094 12 04 53.76 -00 45 10.3 23.7R 99JA132 807 Ca5619 1999 05 19.06781 12 04 53.74 -00 45 10.3 23.5R 99JA132 807 Ca5619 1999 05 19.07468 12 04 53.74 -00 45 10.2 23.9R 99JA132 807 Ca5619 1999 05 19.08169 12 04 53.72 -00 45 10.1 23.7R 99JA132 807 Ca5619 1999 05 19.08857 12 04 53.70 -00 45 10.0 23.5R 99JA132 807 Ca5619 1999 05 19.09544 12 04 53.69 -00 45 09.9 24.1R 99JA132 807 Ca5619 1999 05 19.10231 12 04 53.67 -00 45 09.8 23.3R 99JA132 807 Ca5619 1999 05 19.10918 12 04 53.66 -00 45 09.9 23.3R 99JA132 807 Ca5619 1999 05 19.11606 12 04 53.64 -00 45 09.7 23.7R 99JA132 807 Ca5619
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 0.06
2 0.0000 0.00 0.02 0.00 0.06
3 0.0000 -0.18 0.02 0.03 0.10
4 0.1362 -3026.56 0.03 -69.15 -0.30
5 0.1363 -3027.10 0.10 -69.05 -0.18
6 0.1364 -3029.38 -0.23 -69.06 -0.11
7 0.1364 -3029.34 0.11 -69.16 -0.19
8 0.1391 -3070.39 0.04 -70.27 -0.09
9 0.1391 -3071.06 -0.03 -70.23 -0.03
10 0.1392 -3071.83 0.10 -70.35 -0.11
11 0.1392 -3072.36 -0.13 -70.25 0.00
12 0.1392 -3072.95 -0.13 -70.40 -0.12
13 0.1392 -3073.13 -0.02 -70.37 -0.08
14 0.1393 -3073.36 0.04 -70.58 -0.28
15 0.1581 -3334.80 0.22 -78.92 -0.05
16 0.1581 -3334.93 0.33 -78.98 -0.10
17 0.1581 -3335.39 0.12 -79.07 -0.17
18 0.1581 -3335.92 -0.17 -78.97 -0.06
19 0.1582 -3335.82 0.46 -78.82 0.11
20 0.1583 -3338.42 -0.12 -78.86 0.17
21 0.1583 -3338.30 0.26 -79.13 -0.09
22 0.1584 -3338.79 0.00 -79.13 -0.08
23 0.1584 -3339.29 -0.25 -79.12 -0.06
24 0.1584 -3339.46 -0.18 -79.09 -0.02
25 0.1607 -3367.95 -0.14 -79.78 0.29
26 0.1607 -3368.01 0.04 -80.02 0.06
27 0.1608 -3368.36 -0.06 -79.95 0.14
28 0.1608 -3368.68 -0.14 -79.98 0.12
29 0.1608 -3368.54 0.23 -79.92 0.19
30 0.1608 -3368.95 0.05 -80.10 0.02
31 0.1608 -3369.27 -0.03 -80.13 0.01
32 0.1609 -3369.44 0.03 -80.10 0.05
33 0.1609 -3369.80 -0.09 -80.03 0.13
34 0.1609 -3370.07 -0.13 -80.15 0.02
35 0.1609 -3370.11 0.06 -80.06 0.12
36 0.1609 -3370.43 -0.02 -80.09 0.11
37 0.1609 -3370.74 -0.10 -80.12 0.09
38 0.1610 -3370.92 -0.04 -80.08 0.13
39 0.1610 -3371.24 -0.12 -80.11 0.12
40 0.1610 -3371.33 0.01 -80.26 -0.02
41 0.1610 -3371.69 -0.11 -80.20 0.05
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.
99JA132 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0