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: 00PX29
# Created Fri Apr 26 01:10:10 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 28 observations of 28
# Arc: 19.09y
# First observation: 2000/07/31
# Last observation: 2019/09/04
# Chi-squared of fit: 153.67 DOF: 50 RMS: 0.41
# Min/Max residuals: -0.54 0.95
# Exact a, adot, b, bdot, g, gdot:
1.659866E-05 2.268973E-02 -2.506599E-06 -2.511357E-03 2.389325E-02 -1.306379E-03
# Covariance matrix:
2.2420E-13 -1.2572E-13 -1.4265E-14 1.3829E-14 3.0873E-13 -2.7146E-13
-1.2572E-13 1.0107E-13 1.1869E-14 -1.1479E-14 -2.4586E-13 2.2524E-13
-1.4265E-14 1.1869E-14 8.0076E-14 -6.9482E-15 -2.8844E-14 2.6790E-14
1.3829E-14 -1.1479E-14 -6.9482E-15 2.6292E-15 2.8367E-14 -2.5918E-14
3.0873E-13 -2.4586E-13 -2.8844E-14 2.8367E-14 7.9033E-13 -5.5845E-13
-2.7146E-13 2.2524E-13 2.6790E-14 -2.5918E-14 -5.5845E-13 5.0859E-13
# lat0 lon0 xBary yBary zBary JD0
1.085370 -54.195669 -0.035533 0.019036 -1.014057 2451756.624613
# Heliocentric elements and errors
Epoch: 2451756.5000 = 2000/07/31
Mean Anomaly: 266.63500 +/- 0.145
Argument of Peri: 270.62502 +/- 0.123
Long of Asc Node: 135.34482 +/- 0.000
Inclination: 6.40529 +/- 0.000
Eccentricity: 0.05985765 +/- 0.0000
Semi-Major Axis: 42.56654265 +/- 0.0071
Time of Perihelion: 2478064.1830 +/- 44.9
Perihelion: 40.01860960 +/- 0.0070
Aphelion: 45.11447571 +/- 0.0078
Period (y) 277.7223 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 25.10884332 +/- 0.0009
Ecliptic Y -34.73456408 +/- 0.0013
Ecliptic Z 0.79267309 +/- 0.0000
Ecliptic XDOT 0.00201711 +/- 0.0000
Ecliptic YDOT 0.00164355 +/- 0.0000
Ecliptic ZDOT -0.00029040 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.86695115 +/- 0.0012
Geocenter to KBO 41.85290559 +/- 0.0016
# Hcoef: 7.56
The following table shows the complete astrometric record for 00PX29. 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 (00PX29) followed by the observatory code and reference code for the source of the astrometry.
2000 07 31.12387 20 31 34.74 -17 46 05.8 23.4R 00PX29 807 Ch1299 2000 07 31.19562 20 31 34.40 -17 46 07.6 00PX29 807 Ch1299 2000 08 05.34368 20 31 10.02 -17 47 43.4 00PX29 568 Cb8005 2000 08 05.39259 20 31 09.79 -17 47 44.6 23.4R 00PX29 568 Cb8005 2000 08 05.43348 20 31 09.60 -17 47 45.4 00PX29 568 Cb8005 2000 08 06.33657 20 31 05.27 -17 48 02.0 00PX29 568 Cb8005 2000 08 06.37780 20 31 05.06 -17 48 02.8 23.7R 00PX29 568 Cb8005 2000 08 06.41951 20 31 04.86 -17 48 03.6 00PX29 568 Cb8005 2000 09 23.25607 20 28 05.95 -18 00 29.7 23.5R 00PX29 568 Cc0967 2000 09 23.30561 20 28 05.83 -18 00 30.4 23.8R 00PX29 568 Cc0967 2000 09 23.35371 20 28 05.75 -18 00 30.8 24.4R 00PX29 568 Cc0967 2000 09 24.24408 20 28 03.79 -18 00 40.2 23.7R 00PX29 568 Cc0967 2000 09 24.29365 20 28 03.67 -18 00 40.7 23.5R 00PX29 568 Cc0967 2000 09 24.35187 20 28 03.54 -18 00 41.3 24.0R 00PX29 568 Cc0967 2001 07 25.35182 20 37 29.56 -17 33 13.1 22.8R 00PX29 568 Cd3308 2001 07 25.40974 20 37 29.28 -17 33 14.2 23.0R 00PX29 568 Cd3308 2001 07 25.46294 20 37 29.01 -17 33 15.3 23.1R 00PX29 568 Cd3308 2001 07 26.38082 20 37 24.66 -17 33 32.8 00PX29 568 Cd3308 2003 07 06.44015 20 49 48.33 -17 03 19.6 23.7R 00PX29 568 Ci2628 2003 07 07.44134 20 49 44.14 -17 03 37.3 00PX29 568 Ci2628 2003 07 07.49809 20 49 43.95 -17 03 38.5 00PX29 568 Ci2628 2007 05 20.71003 21 13 15.70 -15 59 29.6 23.8R 00PX29 250 S~06AN 2007 05 20.71698 21 13 15.70 -15 59 29.6 00PX29 250 S~06AN 2007 05 20.72462 21 13 15.70 -15 59 29.6 00PX29 250 S~06AN 2007 05 20.73156 21 13 15.69 -15 59 29.6 00PX29 250 S~06AN 2019 09 04.203790 22 12 31.334 -12 57 07.87 23.4G 00PX29 G37 C~3cUl 2019 09 04.275110 22 12 30.999 -12 57 09.98 00PX29 G37 C~3cUl 2019 09 04.325150 22 12 30.764 -12 57 11.33 00PX29 G37 C~3cUl
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 -0.38 0.00 0.09
2 0.0002 0.00 -0.26 0.00 -0.36
3 0.0143 0.00 0.74 0.00 0.22
4 0.0144 0.00 0.82 0.00 -0.07
5 0.0145 0.00 0.92 0.00 -0.10
6 0.0170 0.00 -0.29 0.00 0.11
7 0.0171 0.00 -0.48 0.00 0.08
8 0.0172 0.00 -0.48 0.00 0.06
9 0.1482 0.00 0.12 0.00 -0.20
10 0.1483 0.00 0.04 0.00 -0.38
11 0.1485 0.00 0.51 0.00 -0.27
12 0.1509 0.00 0.25 0.00 -0.34
13 0.1510 0.00 0.12 0.00 -0.32
14 0.1512 0.00 0.12 0.00 -0.33
15 0.9835 0.00 -0.34 0.00 -0.21
16 0.9837 0.00 -0.35 0.00 -0.20
17 0.9838 0.00 -0.54 0.00 -0.28
18 0.9863 0.00 -0.46 0.00 -0.26
19 2.9304 0.00 -0.09 0.00 0.16
20 2.9331 0.00 -0.30 0.00 0.21
21 2.9333 0.00 0.49 0.00 0.03
22 6.8024 0.00 -0.11 0.00 0.89
23 6.8024 0.00 -0.08 0.00 0.91
24 6.8025 0.00 -0.04 0.00 0.93
25 6.8025 0.00 -0.16 0.00 0.95
26 19.0940 0.00 0.19 0.00 -0.24
27 19.0942 0.00 0.07 0.00 -0.49
28 19.0943 0.00 -0.01 0.00 -0.54
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.
00PX29 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.647 42.646 42.647 ecceobj 0.060 0.060 0.060 incobj 6.400 6.400 6.400 qmin 38.303 38.322 38.221 qmax 47.210 47.238 47.227 amean 42.637 42.637 42.637 amin 42.302 42.299 42.300 amax 43.010 43.007 43.014 emean 0.075 0.075 0.075 emin 0.050 0.050 0.050 emax 0.100 0.100 0.100 imean 5.808 5.807 5.808 imin 4.579 4.579 4.579 imax 7.063 7.063 7.066 excite_mean 0.126 0.126 0.126 fracstop 1.000 1.000 1.000 cjmean 3.067 3.067 3.067 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 179.1 179.1 178.9 kozaiamp 180.0 180.0 180.0