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: 99JB132
# Created Wed Nov 27 02:07:58 2024
# Orbit generated from Bernstein formalism
# Fitting 25 observations of 25
# Arc: 8.09d
# First observation: 1999/05/10
# Last observation: 1999/05/18
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.023536 0.000000 0.006271 0.026763 0.000000
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after 17 iterations -- oscilliatory solution
# Chi-squared of fit: 3.78 DOF: 45 RMS: 0.07
# Min/Max residuals: -0.11 0.18
# Exact a, adot, b, bdot, g, gdot:
1.545840E-05 2.647771E-02 3.842748E-06 6.279795E-03 2.729264E-02 -1.066545E-02
# Covariance matrix:
3.3245E-11 5.5681E-08 4.4227E-14 4.3324E-11 9.5966E-09 5.6168E-08
5.5681E-08 9.3502E-05 7.4257E-11 7.2651E-08 1.6114E-05 9.3631E-05
4.4227E-14 7.4257E-11 8.1584E-14 -3.7238E-12 1.2798E-11 7.6268E-11
4.3324E-11 7.2651E-08 -3.7238E-12 6.9111E-10 1.2540E-08 1.1137E-07
9.5966E-09 1.6114E-05 1.2798E-11 1.2540E-08 2.7770E-06 1.6275E-05
5.6168E-08 9.3631E-05 7.6268E-11 1.1137E-07 1.6275E-05 3.7356E-04
# lat0 lon0 xBary yBary zBary JD0
0.088874 -148.158990 -0.296045 0.001297 -0.971550 2451308.679093
# Heliocentric elements and errors
Epoch: 2451300.5000 = 1999/05/02
Mean Anomaly: 304.16424 +/- 57.999
Argument of Peri: 98.68351 +/- 68.637
Long of Asc Node: 211.93242 +/- 0.104
Inclination: 13.34345 +/- 4.646
Eccentricity: 0.36844793 +/- 0.6730
Semi-Major Axis: 41.19591462 +/- 21.5834
Time of Perihelion: 2466279.7345 +/- 10174.7
Perihelion: 26.01736505 +/- 30.8947
Aphelion: 56.37446420 +/- 40.5097
Period (y) 264.4170 +/- 207.80
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -31.78690095 +/- 1.9006
Ecliptic Y -20.09355263 +/- 1.1801
Ecliptic Z 0.05696399 +/- 0.0035
Ecliptic XDOT 0.00230831 +/- 0.0015
Ecliptic YDOT -0.00168275 +/- 0.0015
Ecliptic ZDOT 0.00062832 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.60533438 +/- 1.7258
Geocenter to KBO 36.63991402 +/- 2.2372
# Hcoef: 8.13
The following table shows the complete astrometric record for 99JB132. 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 (99JB132) followed by the observatory code and reference code for the source of the astrometry.
1999 05 10.17835 13 58 49.13 -12 01 49.2 23.5R 99JB132 807 Ca5619 1999 05 10.18522 13 58 49.10 -12 01 49.0 23.5R 99JB132 807 Ca5619 1999 05 10.19209 13 58 49.06 -12 01 48.8 23.4R 99JB132 807 Ca5619 1999 05 10.19896 13 58 49.04 -12 01 48.5 23.5R 99JB132 807 Ca5619 1999 05 10.20584 13 58 49.00 -12 01 48.3 23.5R 99JB132 807 Ca5619 1999 05 10.21271 13 58 48.96 -12 01 48.1 23.8R 99JB132 807 Ca5619 1999 05 10.21958 13 58 48.93 -12 01 47.9 23.6R 99JB132 807 Ca5619 1999 05 10.22645 13 58 48.89 -12 01 47.7 23.8R 99JB132 807 Ca5619 1999 05 10.23333 13 58 48.86 -12 01 47.5 24.0R 99JB132 807 Ca5619 1999 05 10.24021 13 58 48.82 -12 01 47.3 23.6R 99JB132 807 Ca5619 1999 05 10.24708 13 58 48.79 -12 01 47.1 23.3R 99JB132 807 Ca5619 1999 05 10.25395 13 58 48.77 -12 01 46.9 23.3R 99JB132 807 Ca5619 1999 05 10.26082 13 58 48.72 -12 01 46.7 23.2R 99JB132 807 Ca5619 1999 05 10.26769 13 58 48.69 -12 01 46.5 23.2R 99JB132 807 Ca5619 1999 05 10.27456 13 58 48.66 -12 01 46.2 23.4R 99JB132 807 Ca5619 1999 05 11.21926 13 58 44.11 -12 01 18.2 23.7R 99JB132 807 Ca5619 1999 05 11.23300 13 58 44.04 -12 01 17.7 23.4R 99JB132 807 Ca5619 1999 05 11.25362 13 58 43.93 -12 01 17.2 23.9R 99JB132 807 Ca5619 1999 05 18.18001 13 58 11.51 -11 57 55.9 23.5R 99JB132 807 Ca5619 1999 05 18.20139 13 58 11.40 -11 57 55.4 23.6R 99JB132 807 Ca5619 1999 05 18.21515 13 58 11.35 -11 57 54.9 23.7R 99JB132 807 Ca5619 1999 05 18.23605 13 58 11.25 -11 57 54.4 23.5R 99JB132 807 Ca5619 1999 05 18.24980 13 58 11.19 -11 57 53.9 23.7R 99JB132 807 Ca5619 1999 05 18.25677 13 58 11.15 -11 57 53.9 23.3R 99JB132 807 Ca5619 1999 05 18.26364 13 58 11.12 -11 57 53.7 23.4R 99JB132 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 -0.02 0.00 -0.04
2 0.0000 -0.48 0.03 0.04 -0.03
3 0.0000 -1.10 -0.05 0.02 -0.06
4 0.0001 -1.48 0.11 0.20 0.09
5 0.0001 -2.10 0.03 0.19 0.06
6 0.0001 -2.72 -0.06 0.17 0.02
7 0.0001 -3.20 0.00 0.21 0.03
8 0.0001 -3.82 -0.08 0.19 -0.00
9 0.0002 -4.30 -0.03 0.23 0.01
10 0.0002 -4.92 -0.11 0.21 -0.03
11 0.0002 -5.41 -0.05 0.25 -0.01
12 0.0002 -5.75 0.14 0.33 0.05
13 0.0002 -6.51 -0.08 0.27 -0.04
14 0.0002 -6.99 -0.03 0.30 -0.03
15 0.0003 -7.51 -0.01 0.43 0.08
16 0.0028 -79.82 0.18 3.64 -0.03
17 0.0029 -80.96 0.11 3.76 0.04
18 0.0029 -82.65 0.02 3.67 -0.11
19 0.0219 -598.60 0.01 28.05 0.09
20 0.0220 -600.28 -0.11 27.96 -0.07
21 0.0220 -601.15 0.04 28.18 0.10
22 0.0221 -602.70 0.02 28.14 -0.00
23 0.0221 -603.69 0.03 28.30 0.11
24 0.0221 -604.25 -0.01 28.10 -0.11
25 0.0221 -604.73 0.01 28.14 -0.10
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.
99JB132 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