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: 99KL17
# Created Wed Nov 27 02:07:59 2024
# Orbit generated from Bernstein formalism
# Fitting 13 observations of 13
# Arc: 89.99d
# First observation: 1999/05/10
# Last observation: 1999/08/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.019567 -0.000001 0.000968 0.021545 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 6.11 DOF: 21 RMS: 0.12
# Min/Max residuals: -0.29 0.21
# Exact a, adot, b, bdot, g, gdot:
1.402480E-05 1.887989E-02 3.720059E-07 9.486496E-04 2.106537E-02 -6.896118E-03
# Covariance matrix:
7.5361E-13 -4.8340E-11 -2.9157E-16 3.8891E-14 -9.5003E-12 9.5595E-11
-4.8340E-11 1.3014E-08 -3.0293E-12 2.1353E-10 6.4440E-09 8.7986E-07
-2.9157E-16 -3.0293E-12 2.7864E-13 -1.2698E-12 -2.0130E-12 -3.2631E-10
3.8891E-14 2.1353E-10 -1.2698E-12 1.4149E-11 1.4273E-10 2.3199E-08
-9.5003E-12 6.4440E-09 -2.0130E-12 1.4273E-10 3.8225E-09 5.8519E-07
9.5595E-11 8.7986E-07 -3.2631E-10 2.3199E-08 5.8519E-07 9.4897E-05
# lat0 lon0 xBary yBary zBary JD0
0.014731 -51.278932 0.999432 -0.000168 -0.180853 2451308.874863
# Heliocentric elements and errors
Epoch: 2451300.5000 = 1999/05/02
Mean Anomaly: 307.17431 +/- 42.363
Argument of Peri: 96.40511 +/- 4.791
Long of Asc Node: 307.23846 +/- 0.008
Inclination: 2.89636 +/- 0.040
Eccentricity: 0.37791501 +/- 0.4944
Semi-Major Axis: 53.37042128 +/- 22.2137
Time of Perihelion: 2472197.8896 +/- 10517.9
Perihelion: 33.20093794 +/- 29.7860
Aphelion: 73.53990462 +/- 40.4121
Period (y) 389.9053 +/- 243.43
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 29.03667367 +/- 0.0872
Ecliptic Y -37.80211517 +/- 0.1087
Ecliptic Z 0.01221619 +/- 0.0000
Ecliptic XDOT 0.00135111 +/- 0.0008
Ecliptic YDOT 0.00224292 +/- 0.0010
Ecliptic ZDOT 0.00012309 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.66684884 +/- 0.1012
Geocenter to KBO 47.47127857 +/- 0.1393
# Hcoef: 8.72
The following table shows the complete astrometric record for 99KL17. 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 (99KL17) followed by the observatory code and reference code for the source of the astrometry.
1999 05 10.37412 20 44 34.80 -18 03 57.1 24.8R 99KL17 807 Ca5915 1999 05 11.36241 20 44 34.62 -18 03 57.2 24.7R 99KL17 807 Ca5915 1999 05 18.31688 20 44 31.06 -18 04 07.0 25.4R 99KL17 807 Ca5915 1999 05 18.39397 20 44 30.99 -18 04 07.3 24.8R 99KL17 807 Ca5915 1999 05 19.31241 20 44 30.23 -18 04 09.7 25.3R 99KL17 807 Ca5915 1999 05 19.38827 20 44 30.17 -18 04 10.1 25.0R 99KL17 807 Ca5915 1999 08 07.31958 20 40 11.45 -18 19 51.9 25.4R 99KL17 568 Ca6743 1999 08 07.37532 20 40 11.19 -18 19 52.6 25.1R 99KL17 568 Ca6743 1999 08 07.38051 20 40 11.16 -18 19 52.7 25.5R 99KL17 568 Ca6743 1999 08 07.38728 20 40 11.12 -18 19 52.8 25.0R 99KL17 568 Ca6743 1999 08 08.35451 20 40 06.96 -18 20 08.1 25.5R 99KL17 568 Ca6743 1999 08 08.35973 20 40 06.93 -18 20 08.1 25.3R 99KL17 568 Ca6743 1999 08 08.36496 20 40 06.88 -18 20 08.2 25.4R 99KL17 568 Ca6743
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 0.07
2 0.0027 -2.50 -0.01 0.58 0.10
3 0.0217 -54.07 -0.06 4.40 0.06
4 0.0220 -55.11 -0.13 4.37 -0.02
5 0.0245 -66.20 0.02 4.89 -0.01
6 0.0247 -67.13 0.14 4.73 -0.22
7 0.2435 -3872.36 0.21 49.10 -0.21
8 0.2437 -3876.11 0.06 49.37 0.03
9 0.2437 -3876.55 -0.05 49.38 0.04
10 0.2437 -3877.13 -0.18 49.43 0.08
11 0.2464 -3938.33 0.17 49.80 -0.07
12 0.2464 -3938.74 0.09 49.91 0.03
13 0.2464 -3939.45 -0.29 49.99 0.11
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.
99KL17 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