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: 99JC132
# Created Wed Nov 27 02:07:58 2024
# Orbit generated from Bernstein formalism
# Fitting 24 observations of 24
# Arc: 1.10d
# First observation: 1999/05/10
# Last observation: 1999/05/11
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 16.34 DOF: 44 RMS: 0.15
# Min/Max residuals: -0.31 0.34
# Exact a, adot, b, bdot, g, gdot:
1.627734E-05 2.680247E-02 -1.759704E-06 -2.515562E-03 2.628493E-02 0.000000E+00
# Covariance matrix:
3.6329E-11 5.9971E-08 8.0656E-14 1.0698E-10 1.0056E-08 0.0000E+00
5.9971E-08 9.9391E-05 1.3355E-10 1.7715E-07 1.6651E-05 0.0000E+00
8.0656E-14 1.3355E-10 9.3658E-14 -3.1874E-11 2.2381E-11 0.0000E+00
1.0698E-10 1.7715E-07 -3.1874E-11 3.2282E-08 2.9687E-08 0.0000E+00
1.0056E-08 1.6651E-05 2.2381E-11 2.9687E-08 2.7904E-06 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 2.3897E-04
# lat0 lon0 xBary yBary zBary JD0
0.319906 -147.698414 -0.288226 0.005227 -0.973885 2451308.679093
# Heliocentric elements and errors
Epoch: 2451300.5000 = 1999/05/02
Mean Anomaly: 11.98640 +/- 314.645
Argument of Peri: 163.89501 +/- 21.321
Long of Asc Node: 36.03868 +/- 1.297
Inclination: 5.38929 +/- 2.063
Eccentricity: 0.03084610 +/- 0.5671
Semi-Major Axis: 40.22411958 +/- 21.0125
Time of Perihelion: 2448197.9814 +/- 267792.9
Perihelion: 38.98336217 +/- 30.5778
Aphelion: 41.46487698 +/- 31.4560
Period (y) 255.1162 +/- 199.90
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -32.81733385 +/- 2.0437
Ecliptic Y -21.09352068 +/- 1.2918
Ecliptic Z 0.21234040 +/- 0.0135
Ecliptic XDOT 0.00148793 +/- 0.0014
Ecliptic YDOT -0.00235182 +/- 0.0011
Ecliptic ZDOT -0.00026199 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.01229427 +/- 1.8557
Geocenter to KBO 38.04461216 +/- 2.4178
# Hcoef: 8.75
The following table shows the complete astrometric record for 99JC132. 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 (99JC132) followed by the observatory code and reference code for the source of the astrometry.
1999 05 10.17835 14 00 54.75 -11 58 19.8 24.6R 99JC132 807 Ca5619 1999 05 10.18522 14 00 54.73 -11 58 19.5 24.7R 99JC132 807 Ca5619 1999 05 10.19209 14 00 54.69 -11 58 19.5 24.2R 99JC132 807 Ca5619 1999 05 10.19896 14 00 54.65 -11 58 19.6 24.1R 99JC132 807 Ca5619 1999 05 10.20584 14 00 54.63 -11 58 19.2 23.8R 99JC132 807 Ca5619 1999 05 10.21271 14 00 54.57 -11 58 18.9 24.4R 99JC132 807 Ca5619 1999 05 10.21958 14 00 54.55 -11 58 18.6 24.6R 99JC132 807 Ca5619 1999 05 10.22645 14 00 54.52 -11 58 18.8 24.7R 99JC132 807 Ca5619 1999 05 10.24021 14 00 54.45 -11 58 18.7 24.4R 99JC132 807 Ca5619 1999 05 10.25395 14 00 54.38 -11 58 18.0 24.2R 99JC132 807 Ca5619 1999 05 10.26769 14 00 54.31 -11 58 17.8 24.5R 99JC132 807 Ca5619 1999 05 11.17804 14 00 50.01 -11 57 56.3 24.7R 99JC132 807 Ca5619 1999 05 11.19178 14 00 49.97 -11 57 55.8 24.7R 99JC132 807 Ca5619 1999 05 11.19865 14 00 49.93 -11 57 55.4 24.5R 99JC132 807 Ca5619 1999 05 11.20553 14 00 49.88 -11 57 55.4 24.3R 99JC132 807 Ca5619 1999 05 11.21239 14 00 49.85 -11 57 55.4 24.1R 99JC132 807 Ca5619 1999 05 11.21926 14 00 49.82 -11 57 55.1 24.1R 99JC132 807 Ca5619 1999 05 11.23300 14 00 49.74 -11 57 54.8 24.2R 99JC132 807 Ca5619 1999 05 11.23987 14 00 49.71 -11 57 54.6 24.2R 99JC132 807 Ca5619 1999 05 11.24674 14 00 49.66 -11 57 54.6 24.1R 99JC132 807 Ca5619 1999 05 11.25362 14 00 49.64 -11 57 54.1 23.6R 99JC132 807 Ca5619 1999 05 11.26048 14 00 49.61 -11 57 54.0 24.0R 99JC132 807 Ca5619 1999 05 11.26735 14 00 49.59 -11 57 54.0 24.0R 99JC132 807 Ca5619 1999 05 11.27422 14 00 49.56 -11 57 53.7 24.5R 99JC132 807 Ca5620
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 -0.03 0.00 0.05
2 0.0000 -0.38 0.10 0.18 0.24
3 0.0000 -0.93 0.07 -0.02 0.06
4 0.0001 -1.45 0.06 -0.32 -0.23
5 0.0001 -1.86 0.17 -0.04 0.06
6 0.0001 -2.79 -0.25 -0.06 0.05
7 0.0001 -3.17 -0.11 0.12 0.25
8 0.0001 -3.51 0.06 -0.22 -0.08
9 0.0002 -4.51 0.09 -0.48 -0.31
10 0.0002 -5.72 -0.09 -0.18 0.02
11 0.0002 -6.75 -0.10 -0.34 -0.13
12 0.0027 -73.39 0.04 -1.84 -0.22
13 0.0028 -74.12 0.34 -1.57 0.08
14 0.0028 -74.81 0.16 -1.40 0.26
15 0.0028 -75.49 -0.02 -1.65 0.02
16 0.0028 -75.91 0.08 -1.80 -0.12
17 0.0028 -76.42 0.07 -1.67 0.03
18 0.0029 -77.63 -0.11 -1.79 -0.07
19 0.0029 -78.11 -0.09 -1.76 -0.02
20 0.0029 -78.80 -0.26 -2.01 -0.26
21 0.0029 -79.25 -0.20 -1.64 0.12
22 0.0030 -79.70 -0.14 -1.70 0.08
23 0.0030 -79.97 0.09 -1.80 -0.01
24 0.0030 -80.49 0.09 -1.67 0.13
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.
99JC132 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