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: 778375 # Created Wed Apr 16 01:07:58 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 51 observations of 51 # Arc: 22.78y # First observation: 2001/12/20 # Last observation: 2024/10/01 # Chi-squared of fit: 191.03 DOF: 96 RMS: 0.34 # Min/Max residuals: -0.94 1.26 # Exact a, adot, b, bdot, g, gdot: 3.041181E-05 1.747180E-01 -2.366934E-06 -1.035599E-02 9.178231E-02 -2.505466E-02 # 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 18.980219 122.919976 0.552290 0.262526 -0.763557 2452263.811826 # Heliocentric elements and errors Epoch: 2452264.5000 = 2001/12/21 Mean Anomaly: 309.13202 +/- 0.000 Argument of Peri: 171.32277 +/- 0.000 Long of Asc Node: 21.08321 +/- 0.000 Inclination: 17.86827 +/- 0.000 Eccentricity: 0.21086937 +/- 0.0000 Semi-Major Axis: 12.98525793 +/- 0.0000 Time of Perihelion: 2454679.4953 +/- 0.0 Perihelion: 10.24706478 +/- 0.0000 Aphelion: 15.72345108 +/- 0.0000 Period (y) 46.7933 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -5.57317383 +/- 0.0000 Ecliptic Y 9.63198244 +/- 0.0000 Ecliptic Z 3.54360026 +/- 0.0000 Ecliptic XDOT -0.00405404 +/- 0.0000 Ecliptic YDOT -0.00334151 +/- 0.0000 Ecliptic ZDOT -0.00053499 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 11.67877920 +/- 0.0000 Geocenter to KBO 10.89542177 +/- 0.0000 # Hcoef: 11.47
The following table shows the complete astrometric record for 778375. 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 (778375) followed by the observatory code and reference code for the source of the astrometry.
2001 12 20.311083 08 42 31.76 +37 53 26.1 22.4r 778375 645 C~4qDT 2001 12 20.311912 08 42 31.75 +37 53 26.1 22.5i 778375 645 C~4qDT 2001 12 20.312741 08 42 31.74 +37 53 26.1 23.7u 778375 645 C~4qDT 2001 12 20.313571 08 42 31.72 +37 53 26.2 22.1z 778375 645 C~4qDT 2001 12 20.314400 08 42 31.71 +37 53 26.3 23.0g 778375 645 C~4qDT 2003 01 25.284614 09 21 08.84 +34 52 15.1 778375 645 C~4qDT 2003 01 25.285443 09 21 08.83 +34 52 15.1 778375 645 C~4qDT 2003 01 25.287931 09 21 08.77 +34 52 15.4 778375 645 C~4qDT 2004 03 17.327324 09 53 04.01 +30 23 43.3 22.0r 778375 645 C~4qDT 2004 03 17.328154 09 53 03.99 +30 23 43.3 21.9i 778375 645 C~4qDT 2004 03 17.328983 09 53 03.98 +30 23 43.4 23.9u 778375 645 C~4qDT 2004 03 17.329812 09 53 03.97 +30 23 43.4 21.3z 778375 645 C~4qDT 2004 03 17.330641 09 53 03.96 +30 23 43.5 22.3g 778375 645 C~4qDT 2004 04 15.229016 09 48 11.84 +30 01 25.9 778375 645 C~4qDT 2004 04 15.229845 09 48 11.82 +30 01 26.0 778375 645 C~4qDT 2004 04 15.232333 09 48 11.83 +30 01 25.6 778375 645 C~4qDT 2004 04 16.216430 09 48 07.04 +30 00 04.7 778375 645 C~4qDT 2004 04 16.217259 09 48 07.03 +30 00 04.6 778375 645 C~4qDT 2004 04 16.219747 09 48 07.00 +30 00 04.1 778375 645 C~4qDT 2005 02 04.285045 10 49 39.46 +23 28 21.1 22.1r 778375 645 C~4qDT 2005 02 04.285874 10 49 39.44 +23 28 21.1 21.7i 778375 645 C~4qDT 2005 02 04.286704 10 49 39.44 +23 28 21.3 23.3u 778375 645 C~4qDT 2005 02 04.287533 10 49 39.42 +23 28 21.4 21.4z 778375 645 C~4qDT 2005 02 04.288362 10 49 39.41 +23 28 21.5 22.6g 778375 645 C~4qDT 2008 03 15.31362 12 43 48.61 +00 05 02.3 20.9V 778375 691 C~4qDT 2008 03 15.33135 12 43 48.34 +00 05 03.1 21.3V 778375 691 C~4qDT 2008 03 15.34908 12 43 48.03 +00 05 04.0 21.2V 778375 691 C~4qDT 2010 04 12.46816 13 59 37.38 -16 30 01.1 21.6r 778375 F51 C~4qDT 2010 04 12.47705 13 59 37.26 -16 30 00.8 21.2r 778375 F51 C~4qDT 2010 05 11.97403 13 51 11.715 -16 04 21.36 21.4R 778375 809 C~0HKu 2010 05 12.05991 13 51 10.331 -16 04 17.04 21.7R 778375 809 C~0HKu 2010 05 12.14484 13 51 08.925 -16 04 13.36 21.1R 778375 809 C~0HKu 2010 05 13.23976 13 50 51.746 -16 03 14.47 21.1R 778375 809 C~0HKu 2010 05 13.30409 13 50 50.813 -16 03 10.65 778375 809 C~0HKu 2010 05 21.00285 13 48 56.826 -15 56 33.92 778375 807 C70575 2010 05 21.04762 13 48 56.205 -15 56 31.77 778375 807 C70575 2010 06 05.04171 13 45 56.387 -15 45 53.77 778375 807 C~0IRv 2010 06 05.11994 13 45 55.586 -15 45 51.26 778375 807 C~0IRv 2010 06 14.18946 13 44 39.79 -15 41 36.8 22.1R 778375 688 C~0Inc 2010 06 14.23384 13 44 39.42 -15 41 36.5 778375 688 C~0Inc 2010 07 07.99571 13 43 37.778 -15 40 55.79 21.7R 778375 807 C~0KZk 2010 07 08.11027 13 43 37.961 -15 40 58.27 21.9R 778375 807 C~0KZk 2011 04 14.47305 14 43 41.43 -24 02 43.7 21.5i 778375 F51 C~4qDT 2011 04 14.48453 14 43 41.25 -24 02 43.7 21.6i 778375 F51 C~4qDT 2013 05 04.379757 16 15 25.34 -35 31 57.3 778375 W84 C~4qDT 2013 05 04.381273 16 15 25.30 -35 31 57.4 778375 W84 C~4qDT 2013 05 04.382766 16 15 25.28 -35 31 57.5 778375 W84 C~4qDT 2018 07 24.286169 20 01 23.24 -40 16 03.3 778375 W84 C~4qDT 2018 07 24.299942 20 01 22.97 -40 16 03.9 778375 W84 C~4qDT 2024 10 01.185230 22 47 21.814 -22 11 20.57 23.8G 778375 G37 C~8GqU 2024 10 01.227090 22 47 21.344 -22 11 21.27 778375 G37 C~8GqU
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 0.13
2 0.0000 0.00 -0.02 0.00 0.05
3 0.0000 0.00 -0.01 0.00 -0.04
4 0.0000 0.00 -0.14 0.00 -0.02
5 0.0000 0.00 -0.13 0.00 -0.01
6 1.0978 0.00 0.05 0.00 -0.13
7 1.0978 0.00 0.13 0.00 -0.20
8 1.0978 0.00 -0.07 0.00 -0.10
9 2.2396 0.00 0.02 0.00 -0.17
10 2.2396 0.00 -0.10 0.00 -0.16
11 2.2396 0.00 -0.06 0.00 -0.05
12 2.2396 0.00 -0.03 0.00 -0.04
13 2.2396 0.00 0.01 0.00 0.07
14 2.3187 0.00 0.12 0.00 0.03
15 2.3187 0.00 -0.11 0.00 0.20
16 2.3187 0.00 0.23 0.00 0.00
17 2.3214 0.00 -0.07 0.00 0.15
18 2.3214 0.00 -0.16 0.00 0.12
19 2.3214 0.00 -0.43 0.00 -0.17
20 3.1266 0.00 0.13 0.00 -0.09
21 3.1266 0.00 0.02 0.00 -0.17
22 3.1266 0.00 0.21 0.00 -0.05
23 3.1266 0.00 0.10 0.00 -0.03
24 3.1266 0.00 0.14 0.00 -0.02
25 6.2341 0.00 -0.49 0.00 0.39
26 6.2341 0.00 -0.23 0.00 0.01
27 6.2342 0.00 -0.58 0.00 -0.28
28 8.3098 0.00 -0.05 0.00 -0.34
29 8.3098 0.00 0.49 0.00 -0.43
30 8.3906 0.00 0.09 0.00 1.10
31 8.3908 0.00 0.03 0.00 0.87
32 8.3911 0.00 -0.50 0.00 -0.01
33 8.3941 0.00 -0.01 0.00 -0.07
34 8.3942 0.00 1.26 0.00 0.23
35 8.4153 0.00 0.37 0.00 -0.68
36 8.4154 0.00 0.63 0.00 -0.71
37 8.4565 0.00 0.33 0.00 0.16
38 8.4567 0.00 0.25 0.00 -0.02
39 8.4815 0.00 -0.14 0.00 0.10
40 8.4817 0.00 -0.94 0.00 -0.58
41 8.5467 0.00 -0.13 0.00 1.11
42 8.5470 0.00 0.13 0.00 0.83
43 9.3146 0.00 -0.14 0.00 -0.32
44 9.3146 0.00 0.11 0.00 -0.50
45 11.3705 0.00 -0.07 0.00 -0.22
46 11.3705 0.00 -0.27 0.00 -0.29
47 11.3705 0.00 -0.17 0.00 -0.37
48 16.5913 0.00 0.00 0.00 0.06
49 16.5913 0.00 -0.24 0.00 -0.14
50 22.7813 0.00 0.00 0.00 -0.06
51 22.7814 0.00 0.19 0.00 -0.09
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.
778375 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 12.950 12.950 12.950 ecceobj 0.209 0.209 0.209 incobj 17.868 17.868 17.868 qmin 9.236 10.069 9.427 qmax 15.793 15.697 15.653 amean 12.219 12.641 12.339 amin 10.961 12.222 11.645 amax 13.016 12.978 12.950 emean 0.185 0.194 0.191 emin 0.144 0.167 0.161 emax 0.213 0.211 0.212 imean 16.723 17.010 16.867 imin 15.449 16.306 15.536 imax 17.842 17.842 17.842 excite_mean 0.343 0.351 0.348 fracstop 0.004 0.003 0.003 cjmean 3.667 3.596 3.645 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 210.8 272.7 194.3 kozaiamp 169.4 91.5 168.8