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: 99JD132 # Created Wed Dec 25 02:07:58 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 67 observations of 67 # Arc: 18.92y # First observation: 1999/05/10 # Last observation: 2018/04/10 # Chi-squared of fit: 89.48 DOF: 128 RMS: 0.20 # Min/Max residuals: -0.80 1.01 # Exact a, adot, b, bdot, g, gdot: 1.608272E-05 2.293799E-02 -3.111790E-06 -4.242182E-03 2.404642E-02 1.349064E-03 # Covariance matrix: 6.0620E-14 2.1566E-13 2.9502E-15 -4.1974E-14 4.7224E-13 1.4519E-12 2.1566E-13 2.0276E-12 2.7106E-14 -3.7974E-13 3.3641E-12 1.3135E-11 2.9502E-15 2.7106E-14 2.4873E-14 -9.4786E-15 4.5148E-14 1.7649E-13 -4.1974E-14 -3.7974E-13 -9.4786E-15 8.1901E-14 -6.3809E-13 -2.4735E-12 4.7224E-13 3.3641E-12 4.5148E-14 -6.3809E-13 6.5258E-12 2.2072E-11 1.4519E-12 1.3135E-11 1.7649E-13 -2.4735E-12 2.2072E-11 8.5561E-11 # lat0 lon0 xBary yBary zBary JD0 -0.282264 -147.962249 -0.292821 -0.005002 -0.972515 2451308.685963 # Heliocentric elements and errors Epoch: 2451308.5000 = 1999/05/10 Mean Anomaly: 76.50722 +/- 0.158 Argument of Peri: 97.66212 +/- 0.225 Long of Asc Node: 30.95088 +/- 0.000 Inclination: 10.51866 +/- 0.000 Eccentricity: 0.06482496 +/- 0.0004 Semi-Major Axis: 43.02880917 +/- 0.0119 Time of Perihelion: 2429398.7543 +/- 46.2 Perihelion: 40.23946814 +/- 0.0192 Aphelion: 45.81815020 +/- 0.0201 Period (y) 282.2586 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -35.91280182 +/- 0.0038 Ecliptic Y -22.82415473 +/- 0.0023 Ecliptic Z -0.20501001 +/- 0.0000 Ecliptic XDOT 0.00125455 +/- 0.0000 Ecliptic YDOT -0.00228542 +/- 0.0000 Ecliptic ZDOT -0.00048373 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.55243767 +/- 0.0034 Geocenter to KBO 41.58624614 +/- 0.0044 # Hcoef: 7.65
The following table shows the complete astrometric record for 99JD132. 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 (99JD132) followed by the observatory code and reference code for the source of the astrometry.
1999 05 10.18522 13 59 02.99 -12 26 47.7 23.7R 99JD132 807 Ca5620 1999 05 10.19209 13 59 02.96 -12 26 47.6 23.7R 99JD132 807 Ca5620 1999 05 10.19896 13 59 02.93 -12 26 47.4 23.9R 99JD132 807 Ca5620 1999 05 10.20584 13 59 02.91 -12 26 47.3 23.8R 99JD132 807 Ca5620 1999 05 10.21271 13 59 02.88 -12 26 47.2 23.9R 99JD132 807 Ca5620 1999 05 10.21958 13 59 02.84 -12 26 47.0 23.5R 99JD132 807 Ca5620 1999 05 10.23333 13 59 02.78 -12 26 46.6 23.9R 99JD132 807 Ca5620 1999 05 10.24708 13 59 02.71 -12 26 46.4 23.7R 99JD132 807 Ca5620 1999 05 10.25395 13 59 02.69 -12 26 46.2 24.2R 99JD132 807 Ca5620 1999 05 10.26082 13 59 02.65 -12 26 45.9 23.7R 99JD132 807 Ca5620 1999 05 10.27456 13 59 02.60 -12 26 45.7 23.9R 99JD132 807 Ca5620 1999 05 11.17804 13 58 58.62 -12 26 26.6 23.7R 99JD132 807 Ca5620 1999 05 11.18491 13 58 58.59 -12 26 26.2 23.7R 99JD132 807 Ca5620 1999 05 11.19178 13 58 58.56 -12 26 26.3 23.4R 99JD132 807 Ca5620 1999 05 11.19865 13 58 58.54 -12 26 26.1 23.5R 99JD132 807 Ca5620 1999 05 11.20553 13 58 58.50 -12 26 26.0 23.5R 99JD132 807 Ca5620 1999 05 11.21239 13 58 58.47 -12 26 25.8 23.7R 99JD132 807 Ca5620 1999 05 11.21926 13 58 58.44 -12 26 25.7 23.3R 99JD132 807 Ca5620 1999 05 11.22613 13 58 58.40 -12 26 25.6 23.5R 99JD132 807 Ca5620 1999 05 11.23300 13 58 58.37 -12 26 25.4 23.0R 99JD132 807 Ca5620 1999 05 11.23987 13 58 58.34 -12 26 25.2 23.3R 99JD132 807 Ca5620 1999 05 11.24674 13 58 58.31 -12 26 25.1 23.3R 99JD132 807 Ca5620 1999 05 11.25362 13 58 58.28 -12 26 24.9 23.4R 99JD132 807 Ca5620 1999 05 11.26048 13 58 58.25 -12 26 24.9 23.5R 99JD132 807 Ca5620 1999 05 11.26735 13 58 58.22 -12 26 24.7 23.3R 99JD132 807 Ca5620 1999 05 11.27422 13 58 58.20 -12 26 24.5 23.6R 99JD132 807 Ca5620 1999 05 18.18001 13 58 28.65 -12 24 01.8 23.6R 99JD132 807 Ca5620 1999 05 18.18765 13 58 28.63 -12 24 01.6 23.5R 99JD132 807 Ca5620 1999 05 18.19452 13 58 28.60 -12 24 01.5 23.9R 99JD132 807 Ca5620 1999 05 18.20139 13 58 28.58 -12 24 01.4 23.5R 99JD132 807 Ca5620 1999 05 18.20826 13 58 28.55 -12 24 01.3 23.4R 99JD132 807 Ca5620 1999 05 18.21515 13 58 28.52 -12 24 01.1 23.5R 99JD132 807 Ca5620 1999 05 18.22202 13 58 28.49 -12 24 01.1 23.6R 99JD132 807 Ca5620 1999 05 18.22889 13 58 28.46 -12 24 00.9 23.5R 99JD132 807 Ca5620 1999 05 18.23605 13 58 28.43 -12 24 00.8 23.7R 99JD132 807 Ca5620 1999 05 18.24293 13 58 28.40 -12 24 00.5 23.4R 99JD132 807 Ca5620 1999 05 18.24980 13 58 28.37 -12 24 00.5 23.4R 99JD132 807 Ca5620 1999 05 18.25677 13 58 28.35 -12 24 00.3 23.5R 99JD132 807 Ca5620 1999 05 18.26364 13 58 28.32 -12 23 59.9 23.4R 99JD132 807 Ca5620 1999 05 18.27050 13 58 28.29 -12 24 00.0 23.3R 99JD132 807 Ca5620 1999 05 19.12854 13 58 24.75 -12 23 42.9 23.5R 99JD132 807 Ca5620 1999 05 19.13541 13 58 24.72 -12 23 42.8 23.5R 99JD132 807 Ca5620 1999 05 19.14229 13 58 24.70 -12 23 42.6 23.6R 99JD132 807 Ca5620 1999 05 19.14915 13 58 24.67 -12 23 42.5 23.9R 99JD132 807 Ca5620 1999 05 19.15607 13 58 24.64 -12 23 42.3 23.6R 99JD132 807 Ca5620 1999 05 19.16294 13 58 24.61 -12 23 42.2 23.7R 99JD132 807 Ca5620 1999 05 19.16982 13 58 24.58 -12 23 42.0 23.7R 99JD132 807 Ca5620 1999 05 19.17669 13 58 24.56 -12 23 42.1 23.6R 99JD132 807 Ca5620 1999 05 19.18356 13 58 24.53 -12 23 41.9 23.6R 99JD132 807 Ca5620 1999 05 19.19043 13 58 24.49 -12 23 41.6 23.8R 99JD132 807 Ca5620 1999 05 19.19730 13 58 24.47 -12 23 41.6 23.9R 99JD132 807 Ca5620 1999 05 19.22727 13 58 24.34 -12 23 41.0 23.7R 99JD132 807 Ca5620 1999 05 19.23442 13 58 24.31 -12 23 40.6 23.8R 99JD132 807 Ca5620 1999 05 19.24130 13 58 24.28 -12 23 40.7 23.8R 99JD132 807 Ca5620 1999 05 19.25504 13 58 24.23 -12 23 40.4 23.9R 99JD132 807 Ca5620 1999 05 19.26191 13 58 24.19 -12 23 40.2 23.9R 99JD132 807 Ca5620 1999 05 19.26878 13 58 24.17 -12 23 40.2 24.0R 99JD132 807 Ca5620 2000 06 25.94209 14 01 07.21 -12 55 01.6 99JD132 950 Cb6484 2000 06 25.97586 14 01 07.20 -12 55 01.4 99JD132 950 Cb6484 2000 06 26.01143 14 01 07.11 -12 55 01.0 99JD132 950 Cb6484 2000 06 26.93890 14 01 05.55 -12 54 54.4 99JD132 950 Cb6484 2000 06 26.98511 14 01 05.45 -12 54 53.6 99JD132 950 Cb6484 2006 04 26.22589 14 33 24.39 -17 06 23.4 22.1R 99JD132 807 Cr3547 2006 04 26.31058 14 33 24.00 -17 06 21.7 99JD132 807 Cr3547 2006 04 27.22965 14 33 19.65 -17 06 03.7 99JD132 807 Cr3547 2018 04 10.33810 15 33 47.140 -23 55 08.76 99JD132 G37 C~2bGP 2018 04 10.41361 15 33 46.727 -23 55 06.65 99JD132 G37 C~2bGP
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 -0.17 0.00 0.13
2 0.0000 0.00 -0.16 0.00 0.09
3 0.0000 0.00 -0.15 0.00 0.14
4 0.0001 0.00 0.02 0.00 0.09
5 0.0001 0.00 0.03 0.00 0.04
6 0.0001 0.00 -0.11 0.00 0.09
7 0.0001 0.00 -0.08 0.00 0.20
8 0.0002 0.00 -0.20 0.00 0.10
9 0.0002 0.00 -0.04 0.00 0.15
10 0.0002 0.00 -0.18 0.00 0.31
11 0.0002 0.00 -0.01 0.00 0.21
12 0.0027 0.00 -0.04 0.00 0.04
13 0.0027 0.00 -0.03 0.00 0.29
14 0.0028 0.00 -0.02 0.00 0.05
15 0.0028 0.00 0.14 0.00 0.10
16 0.0028 0.00 0.00 0.00 0.05
17 0.0028 0.00 0.01 0.00 0.11
18 0.0028 0.00 0.02 0.00 0.06
19 0.0028 0.00 -0.12 0.00 0.01
20 0.0029 0.00 -0.11 0.00 0.07
21 0.0029 0.00 -0.10 0.00 0.12
22 0.0029 0.00 -0.09 0.00 0.07
23 0.0029 0.00 -0.08 0.00 0.12
24 0.0029 0.00 -0.07 0.00 -0.02
25 0.0030 0.00 -0.06 0.00 0.03
26 0.0030 0.00 0.10 0.00 0.08
27 0.0219 0.00 -0.14 0.00 -0.05
28 0.0219 0.00 0.04 0.00 -0.00
29 0.0219 0.00 0.03 0.00 -0.04
30 0.0219 0.00 0.16 0.00 -0.08
31 0.0220 0.00 0.15 0.00 -0.12
32 0.0220 0.00 0.13 0.00 -0.06
33 0.0220 0.00 0.12 0.00 -0.20
34 0.0220 0.00 0.10 0.00 -0.13
35 0.0220 0.00 0.10 0.00 -0.18
36 0.0221 0.00 0.09 0.00 -0.02
37 0.0221 0.00 0.07 0.00 -0.16
38 0.0221 0.00 0.21 0.00 -0.10
39 0.0221 0.00 0.19 0.00 0.16
40 0.0221 0.00 0.17 0.00 -0.07
41 0.0245 0.00 0.05 0.00 -0.06
42 0.0245 0.00 0.03 0.00 -0.09
43 0.0245 0.00 0.16 0.00 -0.03
44 0.0245 0.00 0.14 0.00 -0.07
45 0.0246 0.00 0.13 0.00 -0.00
46 0.0246 0.00 0.11 0.00 -0.04
47 0.0246 0.00 0.09 0.00 0.02
48 0.0246 0.00 0.22 0.00 -0.21
49 0.0246 0.00 0.20 0.00 -0.15
50 0.0247 0.00 0.03 0.00 0.01
51 0.0247 0.00 0.16 0.00 -0.12
52 0.0248 0.00 0.09 0.00 -0.12
53 0.0248 0.00 0.08 0.00 0.14
54 0.0248 0.00 0.06 0.00 -0.10
55 0.0248 0.00 0.17 0.00 -0.08
56 0.0249 0.00 -0.00 0.00 -0.01
57 0.0249 0.00 0.13 0.00 -0.15
58 1.1301 0.00 -0.53 0.00 -0.13
59 1.1302 0.00 0.24 0.00 -0.18
60 1.1303 0.00 -0.16 0.00 -0.06
61 1.1328 0.00 -0.09 0.00 -0.21
62 1.1329 0.00 -0.40 0.00 0.26
63 6.9625 0.00 -0.34 0.00 -0.32
64 6.9627 0.00 -0.07 0.00 -0.29
65 6.9652 0.00 0.04 0.00 -0.31
66 18.9190 0.00 0.94 0.00 -0.60
67 18.9192 0.00 -0.80 0.00 1.01
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.
99JD132 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.022 43.022 43.022 ecceobj 0.066 0.066 0.066 incobj 10.518 10.518 10.518 qmin 39.541 39.560 39.534 qmax 47.368 47.352 47.357 amean 43.330 43.330 43.330 amin 42.997 42.988 42.988 amax 43.692 43.682 43.682 emean 0.069 0.069 0.069 emin 0.056 0.056 0.056 emax 0.085 0.084 0.085 imean 9.714 9.714 9.714 imin 8.976 8.977 8.976 imax 10.323 10.324 10.325 excite_mean 0.183 0.183 0.183 fracstop 1.000 1.000 1.000 cjmean 3.053 3.053 3.053 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 181.0 181.1 180.8 kozaiamp 180.0 180.0 180.0