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: 01KH76 # Created Sat Nov 23 02:08:16 2024 # Orbit generated from Bernstein formalism # Fitting 16 observations of 19 # Arc: 4.91y # First observation: 2001/05/22 # Last observation: 2006/04/20 Preliminary a, adot, b, bdot, g, gdot: -0.000144 0.021902 -0.000009 0.001208 0.023011 0.000000 # Chi-squared of fit: 12.62 DOF: 26 RMS: 0.16 # Min/Max residuals: -0.28 0.37 # Exact a, adot, b, bdot, g, gdot: 1.442127E-05 2.162491E-02 1.483774E-06 1.193760E-03 2.286037E-02 -2.534445E-03 # Covariance matrix: 3.8103E-13 -3.4921E-13 7.6068E-15 -1.4502E-14 8.1850E-14 -2.2187E-12 -3.4921E-13 8.5676E-13 -2.5046E-14 4.6250E-14 5.9523E-13 7.1095E-12 7.6068E-15 -2.5046E-14 1.7485E-13 -4.7778E-14 -2.2658E-14 -2.2021E-13 -1.4502E-14 4.6250E-14 -4.7778E-14 2.8556E-14 4.0429E-14 4.0487E-13 8.1850E-14 5.9523E-13 -2.2658E-14 4.0429E-14 1.3512E-12 6.2474E-12 -2.2187E-12 7.1095E-12 -2.2021E-13 4.0487E-13 6.2474E-12 6.2277E-11 # lat0 lon0 xBary yBary zBary JD0 -0.752094 -111.248376 0.134501 -0.013385 -1.009749 2452051.735213 # Heliocentric elements and errors Epoch: 2452050.5000 = 2001/05/21 Mean Anomaly: 288.43123 +/- 0.052 Argument of Peri: 72.28060 +/- 0.059 Long of Asc Node: 261.60205 +/- 0.001 Inclination: 3.25967 +/- 0.000 Eccentricity: 0.12164268 +/- 0.0004 Semi-Major Axis: 45.87026383 +/- 0.0101 Time of Perihelion: 2474609.3181 +/- 14.5 Perihelion: 40.29048182 +/- 0.0195 Aphelion: 51.45004584 +/- 0.0207 Period (y) 310.6741 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -16.33918769 +/- 0.0008 Ecliptic Y -41.65383549 +/- 0.0021 Ecliptic Z -0.57412128 +/- 0.0000 Ecliptic XDOT 0.00251473 +/- 0.0000 Ecliptic YDOT -0.00065518 +/- 0.0000 Ecliptic ZDOT 0.00014714 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.74752150 +/- 0.0020 Geocenter to KBO 43.74381975 +/- 0.0022 # Hcoef: 6.47
The following table shows the complete astrometric record for 01KH76. 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 (01KH76) followed by the observatory code and reference code for the source of the astrometry.
2001 05 22.23447 16 27 37.32 -22 30 14.1 22.0R 01KH76 807 Cd1817 2001 05 22.31640 16 27 36.92 -22 30 13.0 01KH76 807 Cd1817 2001 06 10.03301 16 26 07.10 -22 26 41.7 22.9R 01KH76 304 Cd1817 2001 06 10.10826 16 26 06.74 -22 26 40.6 01KH76 304 Cd1817 2002 04 11.42770 16 35 42.72 -22 43 08.5 21.3R 01KH76 695 Cg5781 2002 04 11.47223 16 35 42.59 -22 43 08.1 01KH76 695 Cg5781 2002 06 16.24174 16 30 59.51 -22 32 59.4 22.1R 01KH76 695 Cf8904 2002 06 16.30401 16 30 59.24 -22 32 59.3 01KH76 695 Cf8904 2002 06 17.28437 16 30 54.71 -22 32 48.6 01KH76 695 Cf8904 2002 06 17.32334 16 30 54.50 -22 32 48.2 22.5R 01KH76 695 Cf8904 2002 07 07.21296 16 29 30.71 -22 29 28.0 23.4R 01KH76 695 Cf8904 2002 07 07.23947 16 29 30.59 -22 29 27.7 23.5R 01KH76 695 Cf8904 2002 07 07.25742 16 29 30.53 -22 29 27.7 23.3R 01KH76 695 Cf8904 2003 05 01.54943 16 39 56.02 -22 47 08.6 23.2R 01KH76 568 Ch9866 2003 05 01.59532 16 39 55.82 -22 47 08.1 01KH76 568 Ch9866 2006 04 20.37065 16 56 57.22 -23 03 22.1 22.1R 01KH76 250 S~06AP 2006 04 20.37505 16 56 57.20 -23 03 22.0 01KH76 250 S~06AP 2006 04 20.37945 16 56 57.19 -23 03 22.0 01KH76 250 S~06AP 2006 04 20.43341 16 56 57.02 -23 03 21.7 01KH76 250 S~06AP
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 0.11 0.00 -0.14
2 0.0002 -5.65 0.05 0.22 0.04
3 0.0515 -1268.38 -0.06 13.08 -0.12
4 0.0517 -1273.48 -0.10 13.37 0.14
5 0.8876 6763.98 -0.14 238.17 0.36
6 0.8877 6762.14 ( -0.18) 238.31 ( 0.50)
7 1.0678 2793.85 -0.04 266.02 0.37
8 1.0680 2790.14 0.36 265.55 -0.15
9 1.0706 2726.47 0.25 266.68 0.06
10 1.0707 2723.54 -0.13 266.64 -0.02
11 1.1252 1545.45 0.03 288.31 -0.14
12 1.1253 1543.76 -0.23 288.35 -0.13
13 1.1253 1542.94 -0.10 288.22 -0.28
14 1.9420 10273.22 ( -0.63) 488.14 ( 0.71)
15 1.9421 10270.40 ( -0.80) 488.26 ( 0.82)
16 4.9121 24501.24 0.05 1238.09 -0.05
17 4.9121 24500.95 -0.05 1238.16 0.02
18 4.9121 24500.81 0.01 1238.14 0.00
19 4.9122 24498.41 -0.01 1238.19 0.03
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.
01KH76 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.927 45.958 45.897 ecceobj 0.124 0.125 0.123 incobj 3.255 3.255 3.255 qmin 39.802 39.776 39.812 qmax 52.931 52.980 52.825 amean 46.204 46.235 46.173 amin 45.819 45.846 45.779 amax 46.641 46.662 46.596 emean 0.123 0.124 0.122 emin 0.110 0.111 0.109 emax 0.136 0.136 0.134 imean 4.998 4.996 5.000 imin 4.500 4.498 4.502 imax 5.454 5.457 5.454 excite_mean 0.151 0.151 0.150 fracstop 1.000 1.000 1.000 cjmean 3.100 3.101 3.100 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 178.5 178.6 178.4 kozaiamp 179.9 180.0 180.0