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: 385446 # Created Sun Dec 22 02:07:04 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 60 observations of 60 # Arc: 18.05y # First observation: 2003/08/25 # Last observation: 2021/09/12 # Chi-squared of fit: 461.61 DOF: 114 RMS: 0.49 # Min/Max residuals: -1.44 1.50 # Exact a, adot, b, bdot, g, gdot: 1.479931E-05 2.083056E-02 -1.016596E-06 -2.708294E-05 2.271027E-02 -2.242335E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -2.726519 -22.951617 0.098492 -0.048008 -1.009224 2452876.734503 # Heliocentric elements and errors Epoch: 2452876.5000 = 2003/08/25 Mean Anomaly: 259.01257 +/- 0.000 Argument of Peri: 21.98590 +/- 0.000 Long of Asc Node: 68.48811 +/- 0.000 Inclination: 2.66668 +/- 0.000 Eccentricity: 0.11564579 +/- 0.0000 Semi-Major Axis: 43.53989668 +/- 0.0000 Time of Perihelion: 2482313.5527 +/- 0.0 Perihelion: 38.50469096 +/- 0.0000 Aphelion: 48.57510240 +/- 0.0000 Period (y) 287.3024 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.39055291 +/- 0.0000 Ecliptic Y -17.63183784 +/- 0.0000 Ecliptic Z -2.09465169 +/- 0.0000 Ecliptic XDOT 0.00072523 +/- 0.0000 Ecliptic YDOT 0.00241207 +/- 0.0000 Ecliptic ZDOT 0.00000977 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.03835584 +/- 0.0000 Geocenter to KBO 44.03304728 +/- 0.0000 # Hcoef: 6.57
The following table shows the complete astrometric record for 385446. 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 (385446) followed by the observatory code and reference code for the source of the astrometry.
2003 08 25.23376 22 39 11.59 -11 27 14.7 21.6R 385446 807 Ci4592 2003 08 25.33868 22 39 11.12 -11 27 17.5 385446 807 Ci4592 2003 09 03.06904 22 38 33.66 -11 30 58.5 22.7R 385446 304 Ci4592 2003 09 03.29799 22 38 32.63 -11 31 03.9 385446 304 Ci4592 2003 10 23.06714 22 35 33.90 -11 47 04.7 23.0R 385446 304 Ci9432 2003 10 23.09793 22 35 33.83 -11 47 04.8 385446 304 Ci9432 2004 07 16.33143 22 46 05.21 -10 45 03.4 22.1R 385446 807 Co3932 2004 07 16.38293 22 46 05.05 -10 45 04.6 385446 807 Co3932 2004 10 12.13108 22 40 30.33 -11 18 31.2 22.8R 385446 695 Cr8411 2004 10 12.23634 22 40 29.99 -11 18 32.6 385446 695 Cr8411 2005 08 08.10293 22 49 20.74 -10 26 12.5 21.8R 385446 807 Co3932 2005 08 08.21996 22 49 20.27 -10 26 15.6 385446 807 Co3932 2005 08 09.10840 22 49 16.90 -10 26 37.6 385446 807 Co3932 2006 07 25.37402 22 54 39.93 -09 53 15.4 22.9R 385446 250 S~06Ad 2006 07 25.37842 22 54 39.91 -09 53 15.5 385446 250 S~06Ad 2006 07 25.38722 22 54 39.88 -09 53 15.7 385446 250 S~06Ad 2006 07 28.33854 22 54 30.57 -09 54 19.5 22.8R 385446 304 Cr5531 2006 07 28.39394 22 54 30.38 -09 54 20.5 385446 304 Cr5531 2007 07 25.13168 22 59 12.51 -09 25 09.0 23.4R 385446 250 S~06Ad 2007 07 25.14001 22 59 12.49 -09 25 09.2 385446 250 S~06Ad 2007 07 25.14765 22 59 12.47 -09 25 09.4 385446 250 S~06Ad 2007 07 25.18723 22 59 12.35 -09 25 10.2 385446 250 S~06Ad 2007 08 26.55946 22 57 12.22 -09 38 21.3 385446 250 S~06Ad 2007 08 26.56709 22 57 12.19 -09 38 21.5 385446 250 S~06Ad 2007 08 26.57473 22 57 12.16 -09 38 21.7 385446 250 S~06Ad 2007 08 26.58237 22 57 12.13 -09 38 21.9 385446 250 S~06Ad 2007 09 12.35681 22 56 00.48 -09 45 40.5 22.7r 385446 695 Cv8576 2007 09 12.40050 22 56 00.31 -09 45 41.2 23.0r 385446 695 Cv8576 2007 10 11.13460 22 54 08.03 -09 56 21.2 23.0R 385446 688 Cw0394 2007 10 11.21226 22 54 07.76 -09 56 22.7 385446 688 Cw0394 2008 08 04.75518 23 03 07.82 -09 01 04.0 385446 250 S~06Ad 2008 08 04.76143 23 03 07.79 -09 01 04.1 385446 250 S~06Ad 2008 08 04.76907 23 03 07.76 -09 01 04.3 385446 250 S~06Ad 2008 08 04.77810 23 03 07.73 -09 01 04.5 385446 250 S~06Ad 2008 08 04.82254 23 03 07.57 -09 01 05.6 385446 250 S~06Ad 2008 08 04.83226 23 03 07.54 -09 01 05.8 385446 250 S~06Ad 2008 08 04.83990 23 03 07.52 -09 01 06.0 385446 250 S~06Ad 2008 08 04.84615 23 03 07.50 -09 01 06.1 385446 250 S~06Ad 2008 08 20.60379 23 02 07.17 -09 07 43.2 385446 250 S~06Ad 2008 08 20.61004 23 02 07.14 -09 07 43.3 385446 250 S~06Ad 2008 08 20.61837 23 02 07.10 -09 07 43.5 385446 250 S~06Ad 2008 08 20.62740 23 02 07.07 -09 07 43.8 385446 250 S~06Ad 2008 08 20.67046 23 02 06.89 -09 07 44.9 385446 250 S~06Ad 2008 08 20.68018 23 02 06.85 -09 07 45.2 385446 250 S~06Ad 2008 08 20.68851 23 02 06.82 -09 07 45.4 385446 250 S~06Ad 2008 08 20.69476 23 02 06.80 -09 07 45.5 385446 250 S~06Ad 2013 11 20.66260 23 19 51.51 -07 11 27.7 23.4R 385446 250 S~0yM9 2013 11 20.66588 23 19 51.51 -07 11 27.7 385446 250 S~0yM9 2013 11 20.67026 23 19 51.50 -07 11 27.7 385446 250 S~0yM9 2013 11 20.67516 23 19 51.50 -07 11 27.7 385446 250 S~0yM9 2013 11 20.68005 23 19 51.49 -07 11 27.7 385446 250 S~0yM9 2013 11 20.68495 23 19 51.49 -07 11 27.8 385446 250 S~0yM9 2013 11 20.73032 23 19 51.44 -07 11 27.9 385446 250 S~0yM9 2013 11 20.73360 23 19 51.44 -07 11 27.9 385446 250 S~0yM9 2019 10 26.099770 23 48 29.992 -04 03 40.20 23.2G 385446 G37 C~3QpJ 2019 10 26.167870 23 48 29.727 -04 03 40.67 385446 G37 C~3QpJ 2019 10 26.269840 23 48 29.392 -04 03 43.39 385446 G37 C~3QpJ 2021 09 12.304350 00 00 55.204 -02 41 17.99 23.2G 385446 G37 C~590e 2021 09 12.364730 00 00 54.925 -02 41 19.75 385446 G37 C~590e 2021 09 12.425450 00 00 54.663 -02 41 21.30 385446 G37 C~590e
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 -0.14 0.00 0.17
2 0.0003 0.00 -0.37 0.00 0.05
3 0.0242 0.00 -0.57 0.00 1.14
4 0.0248 0.00 -1.03 0.00 1.50
5 0.1611 0.00 -0.13 0.00 -0.24
6 0.1612 0.00 -0.07 0.00 -0.02
7 0.8928 0.00 0.34 0.00 0.16
8 0.8929 0.00 0.10 0.00 -0.05
9 1.1332 0.00 0.02 0.00 -0.22
10 1.1335 0.00 -0.14 0.00 0.00
11 1.9545 0.00 0.54 0.00 -0.17
12 1.9548 0.00 0.27 0.00 -0.37
13 1.9572 0.00 0.53 0.00 -0.43
14 2.9162 0.00 0.46 0.00 -0.54
15 2.9162 0.00 0.36 0.00 -0.55
16 2.9162 0.00 0.32 0.00 -0.56
17 2.9243 0.00 0.75 0.00 -0.19
18 2.9245 0.00 0.66 0.00 0.03
19 3.9148 0.00 0.42 0.00 -0.33
20 3.9149 0.00 0.49 0.00 -0.36
21 3.9149 0.00 0.53 0.00 -0.40
22 3.9150 0.00 0.50 0.00 -0.37
23 4.0036 0.00 0.20 0.00 -0.22
24 4.0037 0.00 0.23 0.00 -0.22
25 4.0037 0.00 0.26 0.00 -0.22
26 4.0037 0.00 0.29 0.00 -0.22
27 4.0496 0.00 0.46 0.00 -0.00
28 4.0497 0.00 0.74 0.00 0.40
29 4.1284 0.00 0.55 0.00 0.24
30 4.1286 0.00 0.48 0.00 0.13
31 4.9460 0.00 0.40 0.00 0.04
32 4.9460 0.00 0.28 0.00 0.08
33 4.9460 0.00 0.23 0.00 0.07
34 4.9460 0.00 0.26 0.00 0.08
35 4.9462 0.00 0.20 0.00 0.04
36 4.9462 0.00 0.26 0.00 0.07
37 4.9462 0.00 0.36 0.00 0.05
38 4.9462 0.00 0.39 0.00 0.10
39 4.9894 0.00 -1.28 0.00 -0.09
40 4.9894 0.00 -1.35 0.00 -0.02
41 4.9894 0.00 -1.44 0.00 -0.00
42 4.9894 0.00 -1.34 0.00 -0.07
43 4.9896 0.00 -1.40 0.00 -0.04
44 4.9896 0.00 -1.41 0.00 -0.08
45 4.9896 0.00 -1.35 0.00 -0.07
46 4.9896 0.00 -1.27 0.00 -0.00
47 10.2407 0.00 0.16 0.00 -0.02
48 10.2407 0.00 0.21 0.00 -0.02
49 10.2408 0.00 0.12 0.00 -0.01
50 10.2408 0.00 0.20 0.00 0.01
51 10.2408 0.00 0.12 0.00 0.02
52 10.2408 0.00 0.19 0.00 -0.07
53 10.2409 0.00 0.13 0.00 -0.06
54 10.2409 0.00 0.18 0.00 -0.06
55 16.1694 0.00 0.10 0.00 -0.21
56 16.1696 0.00 -0.36 0.00 0.64
57 16.1698 0.00 -0.10 0.00 -0.12
58 18.0508 0.00 0.18 0.00 -0.02
59 18.0510 0.00 -0.08 0.00 -0.08
60 18.0512 0.00 -0.06 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.
385446 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 43.946 43.946 43.946 ecceobj 0.114 0.114 0.114 incobj 2.667 2.667 2.667 qmin 38.268 38.271 38.270 qmax 49.559 49.552 49.563 amean 43.727 43.727 43.727 amin 43.317 43.318 43.327 amax 44.176 44.172 44.184 emean 0.110 0.110 0.110 emin 0.097 0.097 0.097 emax 0.122 0.122 0.122 imean 1.131 1.132 1.129 imin 0.207 0.208 0.207 imax 1.892 1.891 1.895 excite_mean 0.112 0.112 0.112 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 libcent 0 180.7 181.1 178.7 libamp 0 112.3 111.4 112.1 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 193.8 192.4 195.5 kozaiamp 179.8 178.9 179.4