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: 04DL71
# Created Sun Dec 22 02:08:36 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 53 observations of 53
# Arc: 15.10y
# First observation: 2004/02/27
# Last observation: 2019/04/03
# Chi-squared of fit: 43.17 DOF: 100 RMS: 0.16
# Min/Max residuals: -0.41 0.48
# Exact a, adot, b, bdot, g, gdot:
1.576892E-05 2.200495E-02 -2.084316E-06 2.058167E-04 2.314844E-02 1.982232E-03
# Covariance matrix:
2.9573E-13 -3.0594E-14 6.3232E-17 -5.6904E-17 1.9548E-14 -2.8701E-14
-3.0594E-14 4.3972E-14 -2.5216E-16 4.1593E-16 5.4157E-14 1.4775E-13
6.3232E-17 -2.5216E-16 2.8204E-13 -2.2573E-14 -2.8850E-16 -8.8840E-16
-5.6904E-17 4.1593E-16 -2.2573E-14 2.0138E-15 5.9244E-16 1.4636E-15
1.9548E-14 5.4157E-14 -2.8850E-16 5.9244E-16 1.4344E-13 1.8957E-13
-2.8701E-14 1.4775E-13 -8.8840E-16 1.4636E-15 1.8957E-13 5.2022E-13
# lat0 lon0 xBary yBary zBary JD0
2.214868 170.970801 0.220071 0.037200 -0.960380 2453062.839203
# Heliocentric elements and errors
Epoch: 2453062.5000 = 2004/02/27
Mean Anomaly: 68.79032 +/- 0.020
Argument of Peri: 357.10266 +/- 0.026
Long of Asc Node: 94.94290 +/- 0.003
Inclination: 2.23515 +/- 0.000
Eccentricity: 0.08900150 +/- 0.0000
Semi-Major Axis: 45.29687744 +/- 0.0024
Time of Perihelion: 2431784.7509 +/- 6.3
Perihelion: 41.26538758 +/- 0.0025
Aphelion: 49.32836731 +/- 0.0029
Period (y) 304.8671 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -43.55068533 +/- 0.0007
Ecliptic Y 7.14453288 +/- 0.0001
Ecliptic Z 1.66945705 +/- 0.0000
Ecliptic XDOT -0.00064255 +/- 0.0000
Ecliptic YDOT -0.00254043 +/- 0.0000
Ecliptic ZDOT 0.00003353 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.16433754 +/- 0.0007
Geocenter to KBO 43.19942794 +/- 0.0007
# Hcoef: 7.24
The following table shows the complete astrometric record for 04DL71. 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 (04DL71) followed by the observatory code and reference code for the source of the astrometry.
2004 02 27.33846 11 30 19.41 +05 36 52.8 23.5R 04DL71 695 Ck5116 2004 02 27.43247 11 30 18.99 +05 36 54.8 04DL71 695 Ck5116 2004 03 15.22719 11 29 07.13 +05 44 42.6 22.9R 04DL71 695 Ck5116 2004 03 15.32049 11 29 06.76 +05 44 45.4 04DL71 695 Ck5116 2004 03 29.477147 11 28 07.00 +05 51 01.1 04DL71 T14 C~89L7 2004 03 29.493707 11 28 06.91 +05 51 01.5 04DL71 T14 C~89L7 2014 02 27.488832 12 15 52.44 +00 45 53.8 04DL71 T09 C~89L7 2014 02 27.503965 12 15 52.39 +00 45 54.0 04DL71 T09 C~89L7 2014 02 27.524776 12 15 52.30 +00 45 55.1 04DL71 T09 C~89L7 2014 02 27.538996 12 15 52.25 +00 45 55.0 04DL71 T09 C~89L7 2016 04 02.38998 12 22 27.05 +00 03 38.7 23.2i 04DL71 T09 C~89L7 2016 04 02.41732 12 22 26.94 +00 03 39.6 23.3i 04DL71 T09 C~89L7 2016 04 02.44189 12 22 26.84 +00 03 40.2 23.4i 04DL71 T09 C~89L7 2016 04 02.50172 12 22 26.58 +00 03 41.6 23.2i 04DL71 T09 C~89L7 2016 04 02.51521 12 22 26.53 +00 03 42.3 23.3i 04DL71 T09 C~89L7 2016 04 04.34598 12 22 18.93 +00 04 30.5 25.0g 04DL71 T09 C~89L7 2016 04 04.38940 12 22 18.74 +00 04 31.6 24.8g 04DL71 T09 C~89L7 2016 04 04.41508 12 22 18.64 +00 04 32.5 25.0g 04DL71 T09 C~89L7 2016 04 05.434293 12 22 14.43 +00 04 58.9 04DL71 T09 C~89L7 2016 04 05.552248 12 22 13.93 +00 05 02.0 04DL71 T09 C~89L7 2016 04 15.24895 12 21 34.89 +00 09 06.3 23.5y 04DL71 T09 C~89L7 2016 04 15.34534 12 21 34.49 +00 09 08.6 23.1y 04DL71 T09 C~89L7 2016 04 15.35761 12 21 34.46 +00 09 08.8 22.7y 04DL71 T09 C~89L7 2016 04 15.37727 12 21 34.37 +00 09 09.8 23.9y 04DL71 T09 C~89L8 2016 04 15.46204 12 21 34.03 +00 09 11.5 23.2y 04DL71 T09 C~89L8 2016 06 04.26227 12 19 20.68 +00 21 40.2 23.8z 04DL71 T09 C~89L8 2016 06 04.27037 12 19 20.68 +00 21 40.2 23.8z 04DL71 T09 C~89L8 2016 06 04.28926 12 19 20.65 +00 21 40.4 23.6z 04DL71 T09 C~89L8 2016 06 04.32707 12 19 20.61 +00 21 40.5 23.7z 04DL71 T09 C~89L8 2016 06 04.34327 12 19 20.59 +00 21 40.5 23.6z 04DL71 T09 C~89L8 2016 06 05.317193 12 19 19.61 +00 21 43.9 04DL71 T09 C~89L8 2016 06 05.32639 12 19 19.59 +00 21 43.7 24.1r 04DL71 T09 C~89L8 2016 06 05.33917 12 19 19.58 +00 21 43.7 24.0r 04DL71 T09 C~89L8 2016 06 05.34553 12 19 19.58 +00 21 43.9 23.9r 04DL71 T09 C~89L8 2016 06 05.356114 12 19 19.56 +00 21 44.0 04DL71 T09 C~89L8 2017 01 23.607577 12 30 40.09 -00 51 16.4 04DL71 T09 C~89L8 2017 01 23.651896 12 30 40.02 -00 51 15.9 04DL71 T09 C~89L8 2017 01 28.59194 12 30 32.34 -00 50 11.3 23.7z 04DL71 T09 C~89L8 2017 01 28.59808 12 30 32.32 -00 50 11.3 23.5z 04DL71 T09 C~89L8 2017 01 28.60345 12 30 32.32 -00 50 11.3 23.5z 04DL71 T09 C~89L8 2017 01 28.62228 12 30 32.28 -00 50 11.0 23.5z 04DL71 T09 C~89L8 2017 01 28.64799 12 30 32.24 -00 50 10.7 23.8z 04DL71 T09 C~8Gic 2017 01 28.65069 12 30 32.24 -00 50 10.8 23.6z 04DL71 T09 C~8Gic 2017 02 02.627627 12 30 22.62 -00 48 54.6 04DL71 T09 C~89L8 2017 02 02.636127 12 30 22.61 -00 48 54.4 04DL71 T09 C~89L8 2017 02 23.52167 12 29 24.37 -00 41 49.8 24.1r 04DL71 T09 C~89L8 2017 02 23.53583 12 29 24.33 -00 41 49.4 23.7r 04DL71 T09 C~89L8 2017 02 23.56346 12 29 24.22 -00 41 48.8 23.7r 04DL71 T09 C~89L8 2017 02 23.59748 12 29 24.09 -00 41 48.0 23.5r 04DL71 T09 C~89L8 2017 02 23.60592 12 29 24.08 -00 41 47.8 23.6r 04DL71 T09 C~89L8 2017 02 23.63774 12 29 23.96 -00 41 47.1 23.6r 04DL71 T09 C~89L8 2019 04 03.440043 12 35 41.72 -01 22 03.3 04DL71 T09 C~89L8 2019 04 03.464217 12 35 41.62 -01 22 02.6 04DL71 T09 C~89L8
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 0.04 0.00 0.48
2 0.0003 0.00 -0.28 0.00 -0.12
3 0.0462 0.00 -0.41 0.00 -0.31
4 0.0465 0.00 0.17 0.00 -0.08
5 0.0853 0.00 0.33 0.00 -0.00
6 0.0853 0.00 0.01 0.00 -0.02
7 10.0018 0.00 0.24 0.00 0.10
8 10.0018 0.00 0.35 0.00 -0.09
9 10.0019 0.00 0.19 0.00 0.48
10 10.0019 0.00 0.25 0.00 0.01
11 12.0960 0.00 -0.22 0.00 -0.10
12 12.0960 0.00 -0.13 0.00 0.08
13 12.0961 0.00 -0.07 0.00 0.03
14 12.0963 0.00 -0.16 0.00 -0.16
15 12.0963 0.00 -0.06 0.00 0.18
16 12.1013 0.00 -0.13 0.00 0.02
17 12.1014 0.00 -0.23 0.00 -0.02
18 12.1015 0.00 -0.11 0.00 0.21
19 12.1043 0.00 0.01 0.00 -0.10
20 12.1046 0.00 -0.07 0.00 -0.08
21 12.1312 0.00 0.17 0.00 -0.10
22 12.1314 0.00 -0.09 0.00 -0.12
23 12.1315 0.00 0.20 0.00 -0.22
24 12.1315 0.00 0.02 0.00 0.31
25 12.1318 0.00 -0.02 0.00 -0.04
26 12.2681 0.00 -0.14 0.00 -0.05
27 12.2681 0.00 -0.00 0.00 -0.08
28 12.2682 0.00 -0.13 0.00 0.05
29 12.2683 0.00 -0.09 0.00 0.01
30 12.2683 0.00 -0.12 0.00 -0.05
31 12.2710 0.00 0.05 0.00 -0.04
32 12.2710 0.00 -0.11 0.00 -0.27
33 12.2710 0.00 -0.06 0.00 -0.31
34 12.2711 0.00 0.04 0.00 -0.13
35 12.2711 0.00 -0.09 0.00 -0.06
36 12.9070 0.00 0.17 0.00 0.00
37 12.9071 0.00 0.07 0.00 -0.02
38 12.9206 0.00 -0.11 0.00 0.28
39 12.9206 0.00 -0.24 0.00 0.20
40 12.9206 0.00 -0.09 0.00 0.12
41 12.9207 0.00 -0.18 0.00 0.15
42 12.9208 0.00 -0.08 0.00 0.09
43 12.9208 0.00 -0.00 0.00 -0.05
44 12.9344 0.00 0.03 0.00 -0.08
45 12.9344 0.00 0.16 0.00 -0.02
46 12.9916 0.00 0.08 0.00 0.03
47 12.9916 0.00 0.22 0.00 0.09
48 12.9917 0.00 0.00 0.00 0.04
49 12.9918 0.00 -0.18 0.00 0.03
50 12.9918 0.00 0.10 0.00 0.03
51 12.9919 0.00 -0.05 0.00 -0.02
52 15.0968 0.00 0.17 0.00 -0.09
53 15.0969 0.00 0.22 0.00 -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.
04DL71 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.823 44.823 44.823 ecceobj 0.088 0.088 0.088 incobj 2.235 2.235 2.235 qmin 40.035 40.033 39.996 qmax 50.308 50.276 50.312 amean 45.025 45.026 45.025 amin 44.666 44.666 44.656 amax 45.426 45.420 45.412 emean 0.093 0.093 0.093 emin 0.078 0.078 0.078 emax 0.108 0.108 0.108 imean 0.715 0.715 0.715 imin 0.034 0.034 0.028 imax 1.242 1.242 1.242 excite_mean 0.094 0.094 0.094 fracstop 1.000 1.000 1.000 cjmean 3.103 3.103 3.103 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 166.0 165.9 166.0 kozaiamp 179.9 179.9 179.8