The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 93RO
# Created Fri May 2 02:36:25 2008
# Orbit generated from Bernstein formalism
# Fitting 40 observations of 40
# Arc: 5.98y
# First observation: 1993/09/14
# Last observation: 1999/09/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000662 0.040721 0.000052 -0.002642 0.031308 0.000000
# Chi-squared of fit: 771.18 DOF: 74 RMS: 0.78
# Min/Max residuals: -1.75 1.81
# Exact a, adot, b, bdot, g, gdot:
2.440582E-05 3.999665E-02 6.475277E-07 -2.596288E-03 3.275197E-02 -1.075592E-03
# Covariance matrix:
1.2390E-13 -1.0105E-13 -3.1979E-15 4.9252E-15 -2.7497E-14 -3.5037E-13
-1.0105E-13 1.3937E-13 5.1090E-15 -7.8419E-15 -3.9859E-15 5.5792E-13
-3.1979E-15 5.1090E-15 7.2585E-14 -2.4706E-14 -1.1749E-16 2.3232E-14
4.9252E-15 -7.8419E-15 -2.4706E-14 1.7160E-14 4.2339E-17 -3.5667E-14
-2.7497E-14 -3.9859E-15 -1.1749E-16 4.2339E-17 2.4831E-13 -3.2810E-15
-3.5037E-13 5.5792E-13 2.3232E-14 -3.5667E-14 -3.2810E-15 2.5375E-12
# lat0 lon0 xBary yBary zBary JD0
0.030295 -10.208368 -0.037860 0.000566 -1.005887 2449244.837097
# Heliocentric elements and errors
Epoch: 2449240.5000 = 1993/09/10
Mean Anomaly: 354.31276 +/- 0.010
Argument of Peri: 188.13283 +/- 0.015
Long of Asc Node: 170.30330 +/- 0.000
Inclination: 3.72023 +/- 0.000
Eccentricity: 0.19577794 +/- 0.0001
Semi-Major Axis: 39.14343147 +/- 0.0034
Time of Perihelion: 2450653.6415 +/- 2.4
Perihelion: 31.48001106 +/- 0.0035
Aphelion: 46.80685188 +/- 0.0046
Period (y) 244.9044 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 31.04439780 +/- 0.0005
Ecliptic Y -5.55724788 +/- 0.0001
Ecliptic Z 0.01618815 +/- 0.0000
Ecliptic XDOT 0.00050788 +/- 0.0000
Ecliptic YDOT 0.00330162 +/- 0.0000
Ecliptic ZDOT -0.00021717 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.53788041 +/- 0.0005
Geocenter to KBO 30.53251851 +/- 0.0005
# Hcoef: 8.01
The following table shows the complete astrometric record for 93RO. 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 (93RO) followed by the observatory code and reference code for the source of the astrometry.
1993 09 14.3364 23 22 25.55 -04 00 52.9 23. R 93RO 568 C22539 1993 09 14.5241 23 22 24.47 -04 00 59.9 93RO 568 C22539 1993 09 15.4216 23 22 19.41 -04 01 33.4 93RO 568 C22539 1993 09 15.4723 23 22 19.12 -04 01 35.1 93RO 568 C22539 1993 09 16.4090 23 22 13.83 -04 02 10.0 93RO 568 C22539 1993 09 16.4216 23 22 13.74 -04 02 10.1 93RO 568 C22539 1993 09 17.4060 23 22 08.18 -04 02 46.8 93RO 568 C22539 1993 09 17.4183 23 22 08.07 -04 02 47.4 93RO 568 C22539 1993 09 20.0877 23 21 53.2 -04 04 29. 93RO 950 YC22661 1994 08 10.31135 23 34 09.94 -02 54 17.6 93RO 809 C28036 1994 08 10.42059 23 34 09.47 -02 54 20.5 93RO 809 C28036 1994 08 15.06744 23 33 48.46 -02 56 42.2 93RO 950 C23955 1994 08 15.13596 23 33 48.16 -02 56 44.3 93RO 950 C23955 1994 08 16.07619 23 33 43.78 -02 57 14.6 93RO 950 C23955 1994 08 16.13994 23 33 43.43 -02 57 15.9 93RO 950 C23955 1994 09 05.5318 23 31 57.44 -03 09 15.6 23. R 93RO 568 A23904 1994 09 05.5409 23 31 57.40 -03 09 16.0 93RO 568 A23904 1994 09 05.5503 23 31 57.35 -03 09 16.5 93RO 568 A23904 1994 09 05.5583 23 31 57.29 -03 09 16.7 93RO 568 A23904 1994 09 07.4460 23 31 46.73 -03 10 26.8 93RO 568 A23904 1994 09 07.4581 23 31 46.69 -03 10 27.0 93RO 568 A23904 1994 09 07.4763 23 31 46.54 -03 10 27.9 93RO 568 A23904 1994 09 07.4879 23 31 46.51 -03 10 28.3 93RO 568 A23904 1994 10 08.03252 23 28 57.97 -03 29 19.3 23. 93RO 809 C24212 1994 10 08.20222 23 28 57.09 -03 29 24.9 93RO 809 C24212 1994 10 09.15667 23 28 52.27 -03 29 57.4 93RO 809 C24212 1994 10 09.28323 23 28 51.61 -03 30 01.7 93RO 809 C24212 1995 06 22.451 23 44 16.85 -01 56 55.7 93RO 675 C25381 1995 06 23.463 23 44 17.64 -01 56 52.7 93RO 675 C25381 1995 06 24.450 23 44 18.33 -01 56 50.4 93RO 675 C25381 1995 06 25.453 23 44 18.86 -01 56 49.2 93RO 675 C25381 1995 10 23.3996 23 36 25.76 -02 51 17.8 93RO 568 C26263 1995 10 23.4324 23 36 25.59 -02 51 18.8 93RO 568 C26263 1996 09 10.27010 23 48 50.42 -01 39 39.2 93RO 711 C27868 1996 09 10.30139 23 48 50.23 -01 39 39.6 93RO 711 C27868 1996 09 10.30933 23 48 50.22 -01 39 39.2 93RO 711 C27868 1997 09 08.44866 23 57 43.50 -00 51 32.3 93RO 675 C30579 1997 09 08.49495 23 57 43.23 -00 51 34.3 93RO 675 C30579 1999 09 08.35271 00 15 09.01 +00 42 36.7 93RO 568 Ch3030 1999 09 08.40432 00 15 08.70 +00 42 35.0 93RO 568 Ch3030
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 -1.05 0.00 -0.39 2 0.0005 -17.61 -0.95 -0.10 -0.33 3 0.0030 -100.40 -0.55 -1.20 -0.05 4 0.0031 -105.06 -0.42 -1.06 0.13 5 0.0057 -191.56 -0.14 -2.10 0.51 6 0.0057 -192.83 -0.23 -1.66 0.96 7 0.0084 -283.75 -0.01 -2.78 1.30 8 0.0084 -285.50 -0.60 -2.68 1.41 9 0.0157 -530.02 1.17 -8.85 -0.83 10 0.9034 11278.75 0.24 -482.93 -0.76 11 0.9037 11271.11 0.55 -482.81 -0.54 12 0.9164 10924.99 -1.27 -488.56 1.36 13 0.9166 10920.02 -0.90 -488.71 1.27 14 0.9192 10847.57 -0.88 -490.61 0.87 15 0.9194 10842.23 -1.18 -489.73 1.81 16 0.9752 9095.37 0.64 -523.71 -0.99 17 0.9752 9094.66 0.77 -523.84 -1.11 18 0.9753 9093.78 0.76 -524.00 -1.27 19 0.9753 9092.87 0.60 -523.83 -1.09 20 0.9805 8919.55 0.66 -525.79 -0.16 21 0.9805 8918.92 1.16 -525.73 -0.10 22 0.9805 8916.50 0.44 -525.67 -0.02 23 0.9806 8915.93 0.96 -525.86 -0.20 24 1.0642 6146.88 0.55 -569.43 -0.38 25 1.0647 6132.55 0.62 -569.39 -0.20 26 1.0673 6053.35 0.59 -570.81 -0.31 27 1.0676 6042.56 0.39 -570.87 -0.26 28 1.7690 21055.05 0.06 -929.06 -0.44 29 1.7717 21067.24 0.22 -931.02 -0.51 30 1.7744 21077.76 0.84 -933.03 -0.65 31 1.7772 21085.61 0.54 -935.09 -0.84 32 2.1056 13225.60 -0.07 -1123.99 0.50 33 2.1057 13222.86 -0.46 -1123.90 0.61 34 2.9896 25283.87 -1.75 -1613.43 -0.36 35 2.9896 25281.05 -1.60 -1612.65 0.44 36 2.9897 25281.07 -0.83 -1612.22 0.87 37 3.9839 33943.25 0.48 -2159.06 -0.68 38 3.9840 33938.61 0.18 -2159.28 -0.85 39 5.9822 51298.69 0.46 -3276.79 0.43 40 5.9824 51293.44 0.06 -3276.48 0.80
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.
93RO quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.585 39.595 39.575 ecceobj 0.205 0.205 0.204 incobj 3.706 3.706 3.706 qmin 30.987 30.964 30.965 qmax 48.756 48.686 48.700 amean 39.457 39.457 39.457 amin 38.906 38.925 38.919 amax 40.079 40.053 40.056 emean 0.199 0.199 0.200 emin 0.182 0.182 0.182 emax 0.217 0.216 0.216 imean 3.914 3.943 3.971 imin 3.196 3.240 3.229 imax 4.499 4.552 4.574 fracstop 1.000 1.000 1.000 cjmean 3.001 3.001 3.001 libcent 0 179.8 181.4 180.0 libamp 0 123.6 125.5 125.3 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 187.2 188.2 151.7 kozaiamp 180.0 179.9 180.0