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: 00JF81
# Created Sat Apr 20 01:10:09 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 14.07y
# First observation: 2000/05/06
# Last observation: 2014/05/30
# Chi-squared of fit: 88.61 DOF: 42 RMS: 0.34
# Min/Max residuals: -0.71 0.50
# Exact a, adot, b, bdot, g, gdot:
1.712732E-05 2.120183E-02 1.151209E-06 4.697318E-04 2.260094E-02 -2.153632E-03
# Covariance matrix:
1.2419E-13 -4.5623E-14 9.4217E-16 -8.3076E-16 4.3091E-14 -1.2937E-13
-4.5623E-14 4.1998E-14 -1.0096E-15 9.0434E-16 -4.2549E-14 1.4097E-13
9.4217E-16 -1.0096E-15 9.1616E-14 -1.0139E-14 2.2246E-15 -3.7258E-15
-8.3076E-16 9.0434E-16 -1.0139E-14 3.2688E-15 -1.1294E-15 3.2963E-15
4.3091E-14 -4.2549E-14 2.2246E-15 -1.1294E-15 3.1491E-13 -1.6758E-13
-1.2937E-13 1.4097E-13 -3.7258E-15 3.2963E-15 -1.6758E-13 5.1341E-13
# lat0 lon0 xBary yBary zBary JD0
1.224175 -136.823638 -0.044885 0.021510 -1.014787 2451670.547483
# Heliocentric elements and errors
Epoch: 2451670.5000 = 2000/05/06
Mean Anomaly: 282.86574 +/- 0.035
Argument of Peri: 131.92353 +/- 0.048
Long of Asc Node: 179.99151 +/- 0.004
Inclination: 1.74679 +/- 0.000
Eccentricity: 0.10100645 +/- 0.0000
Semi-Major Axis: 45.82759330 +/- 0.0048
Time of Perihelion: 2475949.6696 +/- 18.0
Perihelion: 41.19871072 +/- 0.0046
Aphelion: 50.45647587 +/- 0.0055
Period (y) 310.2407 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -32.96160804 +/- 0.0008
Ecliptic Y -30.99235324 +/- 0.0007
Ecliptic Z 0.94531549 +/- 0.0000
Ecliptic XDOT 0.00194202 +/- 0.0000
Ecliptic YDOT -0.00168725 +/- 0.0000
Ecliptic ZDOT 0.00005145 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.25365326 +/- 0.0008
Geocenter to KBO 44.24603958 +/- 0.0011
# Hcoef: 7.17
The following table shows the complete astrometric record for 00JF81. 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 (00JF81) followed by the observatory code and reference code for the source of the astrometry.
2000 05 06.04674 14 44 25.26 -14 37 34.8 23.0R 00JF81 809 Cb5923 2000 05 06.14545 14 44 24.85 -14 37 33.0 00JF81 809 Cb5923 2000 05 06.24139 14 44 24.43 -14 37 31.0 00JF81 809 Cb5923 2000 05 06.33509 14 44 23.97 -14 37 28.7 00JF81 809 Cb5923 2000 05 07.30056 14 44 19.72 -14 37 09.6 00JF81 809 Cb5923 2000 06 26.97585 14 41 14.60 -14 23 25.1 00JF81 950 Cb7059 2000 06 27.01283 14 41 14.54 -14 23 25.1 00JF81 950 Cb7059 2000 06 27.02878 14 41 14.49 -14 23 25.2 00JF81 950 Cb7059 2000 06 28.00180 14 41 12.26 -14 23 15.8 00JF81 950 Cb7059 2000 06 28.03820 14 41 12.20 -14 23 15.8 00JF81 950 Cb7059 2001 04 29.42056 14 49 45.51 -14 59 59.5 22.8R 00JF81 695 Ci2627 2001 04 29.45182 14 49 45.38 -14 59 58.7 00JF81 695 Ci2627 2002 03 15.16366 14 57 23.82 -15 32 36.5 23.7R 00JF81 950 Cf4570 2002 03 15.19673 14 57 23.72 -15 32 36.3 00JF81 950 Cf4570 2002 03 15.23773 14 57 23.61 -15 32 35.8 23.6R 00JF81 950 Cf4570 2002 04 06.42633 14 56 14.45 -15 27 05.2 00JF81 696 Cf4570 2002 04 06.45289 14 56 14.35 -15 27 04.5 00JF81 696 Cf4570 2002 04 06.48315 14 56 14.23 -15 27 04.0 00JF81 696 Cf4570 2007 05 11.37392 15 18 43.73 -16 50 31.3 23.3R 00JF81 250 S~06AM 2007 05 11.38087 15 18 43.70 -16 50 31.2 00JF81 250 S~06AM 2007 05 11.38850 15 18 43.67 -16 50 31.1 00JF81 250 S~06AM 2007 05 11.43920 15 18 43.43 -16 50 30.2 00JF81 250 S~06AM 2014 05 30.24132 15 53 40.71 -18 41 00.3 23.5R 00JF81 695 C~1LJ2 2014 05 30.37149 15 53 40.06 -18 40 58.4 00JF81 695 C~1LJ2
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 -0.52 0.00 -0.02
2 0.0003 0.00 -0.01 0.00 -0.22
3 0.0005 0.00 0.18 0.00 -0.19
4 0.0008 0.00 -0.40 0.00 0.18
5 0.0034 0.00 -0.00 0.00 -0.42
6 0.1422 0.00 -0.27 0.00 0.37
7 0.1423 0.00 0.15 0.00 0.01
8 0.1423 0.00 -0.03 0.00 -0.24
9 0.1450 0.00 -0.10 0.00 -0.05
10 0.1451 0.00 0.26 0.00 -0.39
11 0.9812 0.00 0.20 0.00 -0.02
12 0.9813 0.00 0.36 0.00 0.14
13 1.8566 0.00 0.21 0.00 0.50
14 1.8567 0.00 -0.07 0.00 0.31
15 1.8568 0.00 -0.21 0.00 0.31
16 1.9175 0.00 0.34 0.00 0.26
17 1.9176 0.00 0.37 0.00 0.49
18 1.9177 0.00 0.30 0.00 0.46
19 7.0125 0.00 -0.24 0.00 -0.64
20 7.0126 0.00 -0.21 0.00 -0.67
21 7.0126 0.00 -0.14 0.00 -0.70
22 7.0127 0.00 -0.25 0.00 -0.71
23 14.0649 0.00 0.35 0.00 0.40
24 14.0652 0.00 -0.11 0.00 0.46
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.
00JF81 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.834 45.834 45.834 ecceobj 0.102 0.102 0.102 incobj 1.747 1.747 1.747 qmin 40.808 40.827 40.805 qmax 51.840 51.832 51.807 amean 46.176 46.176 46.176 amin 45.799 45.789 45.793 amax 46.576 46.586 46.584 emean 0.100 0.100 0.100 emin 0.087 0.087 0.087 emax 0.113 0.113 0.113 imean 2.445 2.445 2.445 imin 1.958 1.958 1.958 imax 2.840 2.839 2.842 excite_mean 0.109 0.109 0.109 fracstop 1.000 1.000 1.000 cjmean 3.114 3.114 3.114 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 174.2 174.1 174.1 kozaiamp 180.0 179.9 180.0