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: 00PH30
# Created Tue Apr 1 01:08:07 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 26 observations of 26
# Arc: 24.16y
# First observation: 2000/08/05
# Last observation: 2024/10/01
# Chi-squared of fit: 96.36 DOF: 46 RMS: 0.34
# Min/Max residuals: -1.11 1.48
# Exact a, adot, b, bdot, g, gdot:
1.698678E-05 2.157846E-02 -2.246393E-06 -3.052854E-03 2.162241E-02 -8.162053E-03
# Covariance matrix:
1.2273E-13 -2.5592E-14 -5.3221E-15 2.9796E-15 -2.8096E-14 -2.9031E-14
-2.5592E-14 1.2219E-14 2.9769E-15 -1.6686E-15 8.5973E-15 1.6382E-14
-5.3221E-15 2.9769E-15 8.3912E-14 -4.6728E-15 5.2178E-16 4.2628E-15
2.9796E-15 -1.6686E-15 -4.6728E-15 7.3165E-16 -2.3358E-16 -2.3930E-15
-2.8096E-14 8.5973E-15 5.2178E-16 -2.3358E-16 2.2041E-13 -1.5426E-15
-2.9031E-14 1.6382E-14 4.2628E-15 -2.3930E-15 -1.5426E-15 2.3737E-14
# lat0 lon0 xBary yBary zBary JD0
0.390498 -55.660828 -0.148936 0.006626 -1.002534 2451761.821423
# Heliocentric elements and errors
Epoch: 2451762.5000 = 2000/08/06
Mean Anomaly: 338.64165 +/- 0.005
Argument of Peri: 241.84221 +/- 0.006
Long of Asc Node: 127.22890 +/- 0.000
Inclination: 8.05982 +/- 0.000
Eccentricity: 0.50410958 +/- 0.0001
Semi-Major Axis: 77.06365293 +/- 0.0153
Time of Perihelion: 2466422.6344 +/- 69.3
Perihelion: 38.21512718 +/- 0.0090
Aphelion: 115.91217867 +/- 0.0235
Period (y) 676.5230 +/- 0.20
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 26.78256611 +/- 0.0006
Ecliptic Y -38.92609134 +/- 0.0008
Ecliptic Z 0.31512492 +/- 0.0000
Ecliptic XDOT 0.00166744 +/- 0.0000
Ecliptic YDOT 0.00239795 +/- 0.0000
Ecliptic ZDOT -0.00039344 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.25115597 +/- 0.0008
Geocenter to KBO 46.24861631 +/- 0.0010
# Hcoef: 7.66
The following table shows the complete astrometric record for 00PH30. 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 (00PH30) followed by the observatory code and reference code for the source of the astrometry.
2000 08 05.32068 20 26 17.60 -18 47 43.3 24.6R 00PH30 568 Cb8005 2000 08 05.36494 20 26 17.44 -18 47 43.9 24.4R 00PH30 568 Cb8005 2000 08 05.41301 20 26 17.24 -18 47 44.5 00PH30 568 Cb8005 2000 08 06.35730 20 26 13.22 -18 48 00.2 24.2R 00PH30 568 Cb8005 2000 08 06.39871 20 26 13.03 -18 48 01.2 24.1R 00PH30 568 Cb8005 2001 07 24.38191 20 32 27.01 -18 36 30.4 00PH30 568 Ce0222 2001 07 24.42286 20 32 26.83 -18 36 31.1 23.7R 00PH30 568 Ce0222 2001 07 24.46359 20 32 26.65 -18 36 31.8 23.9R 00PH30 568 Ce0222 2001 07 25.50785 20 32 22.14 -18 36 49.9 00PH30 568 Ce0222 2001 09 20.14468 20 28 54.92 -18 50 55.8 00PH30 675 Ce0222 2001 09 20.19010 20 28 54.80 -18 50 56.6 00PH30 675 Ce0222 2002 06 07.51887 20 40 36.25 -18 16 07.1 00PH30 568 Cf8836 2002 06 07.57025 20 40 36.12 -18 16 07.8 00PH30 568 Cf8836 2002 06 08.40972 20 40 34.12 -18 16 16.4 00PH30 675 Cf8836 2002 06 08.46513 20 40 34.01 -18 16 16.8 24. R 00PH30 675 Cf8836 2002 08 09.11246 20 36 41.65 -18 32 36.8 22.5R 00PH30 807 Ch1299 2002 08 09.24592 20 36 41.06 -18 32 39.2 00PH30 807 Ch1299 2007 09 16.20569 21 02 09.94 -17 51 09.6 00PH30 675 Cy6671 2007 09 16.21052 21 02 09.89 -17 51 09.5 00PH30 675 Cy6671 2007 09 16.24156 21 02 09.80 -17 51 10.3 24.1R 00PH30 675 Cy6671 2007 09 16.24638 21 02 09.76 -17 51 10.0 00PH30 675 Cy6671 2020 08 12.268180 22 25 51.122 -13 40 47.70 23.7G 00PH30 G37 C~43p4 2020 08 12.317530 22 25 50.968 -13 40 49.56 00PH30 G37 C~43p4 2024 10 01.124330 22 49 28.504 -12 17 28.73 23.6G 00PH30 G37 C~8GhC 2024 10 01.167040 22 49 28.216 -12 17 29.90 00PH30 G37 C~8GhC 2024 10 01.209170 22 49 28.044 -12 17 30.86 00PH30 G37 C~8GhC
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 -0.26 0.00 -0.06
2 0.0001 0.00 0.21 0.00 0.08
3 0.0003 0.00 0.32 0.00 0.28
4 0.0028 0.00 -0.06 0.00 0.19
5 0.0030 0.00 -0.24 0.00 -0.12
6 0.9666 0.00 -0.20 0.00 -0.10
7 0.9667 0.00 -0.21 0.00 -0.09
8 0.9669 0.00 -0.23 0.00 -0.08
9 0.9697 0.00 -0.30 0.00 -0.11
10 1.1248 0.00 0.08 0.00 0.15
11 1.1249 0.00 -0.14 0.00 -0.19
12 1.8376 0.00 0.29 0.00 -0.09
13 1.8378 0.00 0.19 0.00 -0.25
14 1.8401 0.00 -0.14 0.00 0.14
15 1.8402 0.00 0.26 0.00 0.34
16 2.0090 0.00 0.16 0.00 -0.27
17 2.0094 0.00 0.00 0.00 -0.32
18 7.1126 0.00 0.60 0.00 0.08
19 7.1126 0.00 0.08 0.00 0.25
20 7.1127 0.00 0.23 0.00 -0.10
21 7.1127 0.00 -0.14 0.00 0.26
22 20.0190 0.00 -1.11 0.00 0.44
23 20.0192 0.00 -0.16 0.00 -0.02
24 24.1555 0.00 1.48 0.00 0.01
25 24.1556 0.00 -0.29 0.00 -0.21
26 24.1558 0.00 -0.35 0.00 -0.24
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.
00PH30 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 77.364 77.363 77.365 ecceobj 0.506 0.506 0.506 incobj 8.053 8.053 8.053 qmin 37.512 37.500 37.521 qmax 118.566 119.665 118.729 amean 76.878 77.156 76.916 amin 75.705 75.730 75.774 amax 78.416 78.950 78.523 emean 0.501 0.503 0.501 emin 0.490 0.491 0.491 emax 0.512 0.516 0.512 imean 6.776 6.702 6.751 imin 6.352 6.356 6.353 imax 7.242 7.136 7.196 excite_mean 0.514 0.516 0.515 fracstop 1.000 1.000 1.000 cjmean 3.139 3.139 3.138 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 198.6 198.3 199.2 kozaiamp 179.9 180.0 180.0