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: 04PV117 # Created Thu Apr 18 01:12:02 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 31 observations of 31 # Arc: 19.06y # First observation: 2004/08/15 # Last observation: 2023/09/06 # Chi-squared of fit: 24.37 DOF: 56 RMS: 0.16 # Min/Max residuals: -0.38 0.38 # Exact a, adot, b, bdot, g, gdot: 1.743786E-05 2.767526E-02 2.153518E-06 1.950484E-03 2.597018E-02 1.387882E-03 # Covariance matrix: 1.0221E-13 -1.5596E-14 1.0568E-15 -6.4346E-16 -3.2999E-14 -1.9138E-14 -1.5596E-14 3.8410E-14 -3.0050E-15 2.5063E-15 -9.6774E-14 7.6501E-14 1.0568E-15 -3.0050E-15 7.8095E-14 -7.0719E-15 7.0191E-15 -6.2495E-15 -6.4346E-16 2.5063E-15 -7.0719E-15 1.7024E-15 -6.4510E-15 5.2014E-15 -3.2999E-14 -9.6774E-14 7.0191E-15 -6.4510E-15 3.9413E-13 -1.9817E-13 -1.9138E-14 7.6501E-14 -6.2495E-15 5.2014E-15 -1.9817E-13 1.5874E-13 # lat0 lon0 xBary yBary zBary JD0 -1.575135 -51.928151 -0.259484 -0.026966 -0.982781 2453232.840773 # Heliocentric elements and errors Epoch: 2453232.5000 = 2004/08/15 Mean Anomaly: 19.03365 +/- 0.008 Argument of Peri: 313.33312 +/- 0.010 Long of Asc Node: 329.16428 +/- 0.000 Inclination: 4.33412 +/- 0.000 Eccentricity: 0.15137262 +/- 0.0001 Semi-Major Axis: 45.91483947 +/- 0.0062 Time of Perihelion: 2447224.2549 +/- 2.8 Perihelion: 38.96459006 +/- 0.0068 Aphelion: 52.86508888 +/- 0.0084 Period (y) 311.1271 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.54248723 +/- 0.0006 Ecliptic Y -30.91396377 +/- 0.0007 Ecliptic Z -1.05832402 +/- 0.0000 Ecliptic XDOT 0.00238860 +/- 0.0000 Ecliptic YDOT 0.00167255 +/- 0.0000 Ecliptic ZDOT 0.00020163 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.48574317 +/- 0.0007 Geocenter to KBO 38.50570386 +/- 0.0009 # Hcoef: 6.53
The following table shows the complete astrometric record for 04PV117. 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 (04PV117) followed by the observatory code and reference code for the source of the astrometry.
2004 08 15.34003 20 43 41.17 -19 46 12.3 22.5g 04PV117 568 C~0VDs 2004 08 15.37122 20 43 41.02 -19 46 12.7 22.7g 04PV117 568 C~0VDs 2004 08 15.39804 20 43 40.89 -19 46 13.2 22.6g 04PV117 568 C~0VDs 2004 08 16.30846 20 43 36.39 -19 46 28.6 22.8g 04PV117 568 C~0VDs 2004 10 04.23790 20 40 41.37 -19 55 15.6 22.4i 04PV117 568 C~0VDs 2004 10 04.28965 20 40 41.28 -19 55 15.8 22.3i 04PV117 568 C~0VDs 2004 10 04.34239 20 40 41.19 -19 55 15.8 22.3i 04PV117 568 C~0VDs 2005 07 12.24317 20 52 54.21 -19 03 42.8 22.6R 04PV117 809 C~0VDs 2005 07 12.29623 20 52 53.96 -19 03 43.9 22.2R 04PV117 809 C~0VDs 2005 07 12.34592 20 52 53.72 -19 03 44.9 22.5R 04PV117 809 C~0VDs 2005 07 13.22645 20 52 49.57 -19 04 01.4 23.0R 04PV117 809 C~0VDs 2005 07 26.46938 20 51 44.18 -19 08 14.6 22.5r 04PV117 568 C~0VDs 2005 07 26.49933 20 51 44.03 -19 08 15.3 22.6r 04PV117 568 C~0VDs 2005 07 26.52887 20 51 43.87 -19 08 15.8 22.4r 04PV117 568 C~0VDs 2005 07 29.35005 20 51 29.51 -19 09 10.7 22.5r 04PV117 568 C~0VDs 2005 08 02.34902 20 51 09.01 -19 10 27.8 04PV117 309 C~0VDs 2005 08 02.39900 20 51 08.75 -19 10 28.8 04PV117 309 C~0VDs 2006 05 02.47539 21 01 36.77 -18 20 09.3 22.3r 04PV117 695 C~0VDs 2006 05 03.48301 21 01 37.94 -18 20 05.3 21.9r 04PV117 695 C~0VDs 2006 05 04.48572 21 01 38.96 -18 20 02.1 21.9r 04PV117 695 C~0VDs 2013 06 06.26485 21 42 52.83 -14 19 01.6 22.3R 04PV117 304 C~0snl 2013 06 06.34013 21 42 52.73 -14 19 01.8 04PV117 304 C~0snl 2013 06 06.39503 21 42 52.63 -14 19 02.2 04PV117 304 C~0snl 2013 06 07.27083 21 42 51.58 -14 19 07.2 04PV117 304 C~0snl 2013 06 07.34125 21 42 51.48 -14 19 07.8 04PV117 304 C~0snl 2013 06 07.37863 21 42 51.43 -14 19 07.9 04PV117 304 C~0snl 2013 06 08.24081 21 42 50.32 -14 19 13.2 04PV117 304 C~0snl 2013 06 08.31897 21 42 50.19 -14 19 13.9 04PV117 304 C~0snl 2013 06 08.37729 21 42 50.12 -14 19 14.2 04PV117 304 C~0snl 2023 09 06.213220 22 32 41.269 -08 31 43.79 22.6G 04PV117 G37 C~7APT 2023 09 06.251930 22 32 41.087 -08 31 44.88 04PV117 G37 C~7APT
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 -0.07 0.00 -0.22
2 0.0001 0.00 0.05 0.00 -0.09
3 0.0002 0.00 0.14 0.00 -0.13
4 0.0027 0.00 0.19 0.00 -0.03
5 0.1366 0.00 0.07 0.00 -0.32
6 0.1368 0.00 0.07 0.00 -0.38
7 0.1369 0.00 0.09 0.00 -0.24
8 0.9060 0.00 -0.05 0.00 0.32
9 0.9061 0.00 0.02 0.00 0.21
10 0.9062 0.00 -0.01 0.00 0.12
11 0.9087 0.00 0.05 0.00 0.05
12 0.9449 0.00 -0.14 0.00 0.38
13 0.9450 0.00 -0.07 0.00 0.26
14 0.9451 0.00 -0.18 0.00 0.33
15 0.9528 0.00 -0.13 0.00 0.05
16 0.9637 0.00 0.02 0.00 -0.05
17 0.9639 0.00 -0.00 0.00 -0.11
18 1.7115 0.00 -0.04 0.00 -0.11
19 1.7143 0.00 0.20 0.00 0.08
20 1.7170 0.00 -0.19 0.00 -0.08
21 8.8075 0.00 0.31 0.00 -0.20
22 8.8077 0.00 0.22 0.00 0.04
23 8.8078 0.00 -0.24 0.00 -0.05
24 8.8102 0.00 -0.02 0.00 0.07
25 8.8104 0.00 -0.10 0.00 -0.09
26 8.8105 0.00 -0.09 0.00 0.04
27 8.8129 0.00 0.11 0.00 0.16
28 8.8131 0.00 -0.17 0.00 -0.02
29 8.8132 0.00 0.04 0.00 0.07
30 19.0578 0.00 0.03 0.00 0.01
31 19.0579 0.00 -0.01 0.00 -0.08
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.
04PV117 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.113 46.113 46.113 ecceobj 0.153 0.153 0.153 incobj 4.320 4.320 4.320 qmin 38.462 38.389 38.411 qmax 54.252 54.219 54.242 amean 46.139 46.142 46.141 amin 45.742 45.754 45.760 amax 46.588 46.603 46.589 emean 0.150 0.150 0.150 emin 0.137 0.137 0.137 emax 0.165 0.164 0.164 imean 5.546 5.546 5.544 imin 4.931 4.933 4.930 imax 6.129 6.128 6.118 excite_mean 0.179 0.179 0.179 fracstop 1.000 1.000 1.000 cjmean 3.088 3.088 3.088 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 177.3 177.3 177.4 kozaiamp 180.0 180.0 180.0