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: 99CN119
# Created Wed Dec 25 02:07:55 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 21 observations of 21
# Arc: 19.83y
# First observation: 1999/02/11
# Last observation: 2018/12/09
# Chi-squared of fit: 59.49 DOF: 36 RMS: 0.30
# Min/Max residuals: -0.60 0.76
# Exact a, adot, b, bdot, g, gdot:
1.601289E-05 2.128990E-02 1.294305E-06 -2.949721E-04 2.289067E-02 -8.420898E-04
# Covariance matrix:
2.9649E-13 -7.7175E-14 -1.7264E-15 9.5786E-16 -2.4629E-13 -1.5520E-13
-7.7175E-14 3.8782E-14 9.7876E-16 -5.4415E-16 1.3744E-13 8.8161E-14
-1.7264E-15 9.7876E-16 1.8001E-13 -1.0952E-14 3.9686E-15 2.3095E-15
9.5786E-16 -5.4415E-16 -1.0952E-14 1.1076E-15 -2.0755E-15 -1.2775E-15
-2.4629E-13 1.3744E-13 3.9686E-15 -2.0755E-15 8.1280E-13 3.3687E-13
-1.5520E-13 8.8161E-14 2.3095E-15 -1.2775E-15 3.3687E-13 2.0701E-13
# lat0 lon0 xBary yBary zBary JD0
0.617105 129.691766 -0.218947 0.010218 -0.969001 2451220.806763
# Heliocentric elements and errors
Epoch: 2451220.5000 = 1999/02/11
Mean Anomaly: 235.17104 +/- 0.146
Argument of Peri: 271.39864 +/- 0.133
Long of Asc Node: 346.99765 +/- 0.002
Inclination: 1.00256 +/- 0.000
Eccentricity: 0.03945538 +/- 0.0000
Semi-Major Axis: 43.62299168 +/- 0.0060
Time of Perihelion: 2487711.3896 +/- 45.0
Perihelion: 41.90182977 +/- 0.0062
Aphelion: 45.34415359 +/- 0.0066
Period (y) 288.1253 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -28.67833459 +/- 0.0011
Ecliptic Y 34.21946763 +/- 0.0013
Ecliptic Z 0.47056393 +/- 0.0000
Ecliptic XDOT -0.00189704 +/- 0.0000
Ecliptic YDOT -0.00169446 +/- 0.0000
Ecliptic ZDOT -0.00003636 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.65021926 +/- 0.0012
Geocenter to KBO 43.68598587 +/- 0.0017
# Hcoef: 7.92
The following table shows the complete astrometric record for 99CN119. 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 (99CN119) followed by the observatory code and reference code for the source of the astrometry.
1999 02 11.30602 08 49 13.61 +18 25 05.4 24.1R 99CN119 568 Ca4178 1999 02 11.38707 08 49 13.22 +18 25 06.5 24.1R 99CN119 568 Ca4178 1999 02 18.43403 08 48 41.12 +18 27 10.7 24.1R 99CN119 568 Ca4178 1999 02 18.44567 08 48 41.07 +18 27 10.9 24.1R 99CN119 568 Ca4178 1999 12 30.63648 08 57 22.63 +17 51 04.1 99CN119 568 Ca8502 1999 12 31.61208 08 57 18.89 +17 51 20.3 99CN119 568 Ca8502 1999 12 31.63278 08 57 18.80 +17 51 20.3 99CN119 568 Ca8502 2001 03 24.16111 08 56 25.38 +17 53 31.3 24.0R 99CN119 695 Cc7487 2001 03 24.28410 08 56 25.03 +17 53 32.3 99CN119 695 Cc7487 2005 03 09.23670 09 16 45.79 +16 21 09.0 23.4R 99CN119 695 Cn0133 2005 03 09.31508 09 16 45.47 +16 21 10.4 99CN119 695 Cn0133 2005 03 10.23678 09 16 41.95 +16 21 25.9 99CN119 695 Cn0133 2013 03 12.14662 09 55 04.14 +13 02 38.1 23.3R 99CN119 695 C~0uco 2013 03 12.20930 09 55 03.92 +13 02 40.1 99CN119 695 C~0uco 2013 03 13.14064 09 55 00.16 +13 02 59.2 99CN119 695 C~0uco 2016 01 10.320804 10 13 40.91 +11 17 29.3 99CN119 W84 C~3i8v 2016 01 10.321950 10 13 40.93 +11 17 29.5 99CN119 W84 C~3i8v 2018 12 09.488810 10 28 42.68 +09 47 28.1 24.7r 99CN119 568 C~2rbJ 2018 12 09.513060 10 28 42.67 +09 47 28.1 24.8r 99CN119 568 C~2rbJ 2018 12 09.552920 10 28 42.65 +09 47 28.2 24.7r 99CN119 568 C~2rbJ 2018 12 09.594080 10 28 42.63 +09 47 28.2 24.7r 99CN119 568 C~2rbJ
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 -0.36 0.00 -0.23
2 0.0002 0.00 -0.47 0.00 -0.60
3 0.0195 0.00 -0.13 0.00 -0.26
4 0.0195 0.00 -0.09 0.00 -0.26
5 0.8825 0.00 -0.04 0.00 -0.22
6 0.8852 0.00 0.21 0.00 0.14
7 0.8852 0.00 0.09 0.00 -0.19
8 2.1132 0.00 0.74 0.00 0.76
9 2.1136 0.00 0.46 0.00 0.55
10 6.0724 0.00 -0.00 0.00 0.17
11 6.0726 0.00 -0.19 0.00 0.25
12 6.0751 0.00 -0.20 0.00 0.27
13 14.0803 0.00 -0.42 0.00 -0.41
14 14.0805 0.00 0.16 0.00 0.27
15 14.0831 0.00 0.17 0.00 -0.11
16 16.9117 0.00 -0.01 0.00 -0.04
17 16.9117 0.00 0.34 0.00 0.14
18 19.8253 0.00 -0.01 0.00 -0.00
19 19.8253 0.00 -0.03 0.00 -0.06
20 19.8255 0.00 -0.09 0.00 -0.04
21 19.8256 0.00 -0.14 0.00 -0.13
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.
99CN119 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.748 43.748 43.748 ecceobj 0.037 0.037 0.037 incobj 1.000 1.000 1.000 qmin 41.409 41.392 41.426 qmax 46.372 46.363 46.365 amean 43.798 43.798 43.798 amin 43.467 43.462 43.463 amax 44.150 44.148 44.150 emean 0.034 0.034 0.034 emin 0.017 0.017 0.017 emax 0.051 0.051 0.051 imean 2.285 2.285 2.285 imin 1.541 1.541 1.541 imax 2.880 2.880 2.881 excite_mean 0.053 0.053 0.053 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 173.0 173.0 173.0 kozaiamp 180.0 180.0 180.0