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: 554982 # Created Wed Dec 25 02:07:30 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 62 observations of 62 # Arc: 8.99y # First observation: 2012/05/14 # Last observation: 2021/05/12 # Chi-squared of fit: 69.78 DOF: 118 RMS: 0.19 # Min/Max residuals: -0.53 1.13 # Exact a, adot, b, bdot, g, gdot: 1.535849E-05 2.415913E-02 -1.046886E-06 -9.025339E-04 2.456785E-02 -7.502509E-04 # 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 -2.465133 -133.345506 -0.126156 -0.043304 -1.005049 2456061.941626 # Heliocentric elements and errors Epoch: 2456062.5000 = 2012/05/15 Mean Anomaly: 306.54022 +/- 0.000 Argument of Peri: 285.13323 +/- 0.000 Long of Asc Node: 358.39517 +/- 0.000 Inclination: 3.21405 +/- 0.000 Eccentricity: 0.03381750 +/- 0.0000 Semi-Major Axis: 42.52962847 +/- 0.0000 Time of Perihelion: 2471106.4001 +/- 0.0 Perihelion: 41.09138275 +/- 0.0000 Aphelion: 43.96787420 +/- 0.0000 Period (y) 277.3611 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.50863230 +/- 0.0000 Ecliptic Y -30.39011760 +/- 0.0000 Ecliptic Z -1.75071251 +/- 0.0000 Ecliptic XDOT 0.00201314 +/- 0.0000 Ecliptic YDOT -0.00178061 +/- 0.0000 Ecliptic ZDOT -0.00009678 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.70572881 +/- 0.0000 Geocenter to KBO 40.70364876 +/- 0.0000 # Hcoef: 6.23
The following table shows the complete astrometric record for 554982. 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 (554982) followed by the observatory code and reference code for the source of the astrometry.
2012 05 14.44086 14 53 46.580 -19 10 33.18 22.0G 554982 F51 C~2rXx 2012 06 08.30700 14 51 54.220 -19 02 12.85 22.6G 554982 F51 C~2rXx 2013 04 12.54190 15 01 54.272 -19 47 08.68 22.1G 554982 F51 C~2rXx 2013 05 05.39374 15 00 05.972 -19 40 17.54 22.3w 554982 F51 C~1vWz 2013 05 05.40855 15 00 05.888 -19 40 16.72 22.4w 554982 F51 C~1vWz 2013 05 05.42333 15 00 05.834 -19 40 16.57 22.4w 554982 F51 C~1vWz 2013 06 01.35873 14 57 56.671 -19 31 15.87 22.6w 554982 F51 C~1vWz 2013 06 01.37354 14 57 56.601 -19 31 15.58 22.6w 554982 F51 C~1vWz 2013 06 01.38835 14 57 56.532 -19 31 15.22 23.0w 554982 F51 C~1vWz 2013 06 01.40316 14 57 56.476 -19 31 15.03 22.4w 554982 F51 C~1vWz 2013 06 04.36746 14 57 43.516 -19 30 17.29 22.0G 554982 F51 C~2rXx 2014 03 12.58728 15 09 14.683 -20 18 01.59 22.2G 554982 F51 C~2rXx 2014 03 12.62306 15 09 14.585 -20 18 01.43 22.5G 554982 F51 C~2rXx 2014 04 30.45098 15 06 07.777 -20 07 51.67 22.3G 554982 F51 C~2rXx 2014 05 10.46446 15 05 18.173 -20 04 41.44 22.7G 554982 F51 C~2rXx 2014 05 10.47660 15 05 18.106 -20 04 41.24 22.6G 554982 F51 C~2rXx 2014 05 10.48869 15 05 18.028 -20 04 40.79 21.9G 554982 F51 C~2rXx 2014 05 10.50080 15 05 17.950 -20 04 40.57 22.1G 554982 F51 C~2rXx 2014 05 20.37838 15 04 29.225 -20 01 25.48 22.7w 554982 F51 C~1vWz 2014 05 20.38970 15 04 29.171 -20 01 25.48 22.6w 554982 F51 C~1vWz 2014 05 20.40100 15 04 29.123 -20 01 25.06 22.5w 554982 F51 C~1vWz 2014 05 20.41229 15 04 29.064 -20 01 24.89 22.6w 554982 F51 C~1vWz 2014 06 20.32203 15 02 15.748 -19 51 47.28 22.9G 554982 F51 C~2rXx 2015 01 23.64683 15 14 34.012 -20 38 07.61 22.6G 554982 F51 C~2rXx 2015 02 23.65219 15 15 11.388 -20 42 45.83 22.9G 554982 F51 C~2rXx 2015 02 24.63590 15 15 10.969 -20 42 48.57 22.5G 554982 F51 C~2rXx 2015 05 25.37171 15 09 44.484 -20 25 22.76 21.9G 554982 F51 C~2rXx 2015 06 11.31554 15 08 27.781 -20 20 03.63 22.6w 554982 F51 C~1vWz 2015 06 11.32672 15 08 27.739 -20 20 03.25 22.5w 554982 F51 C~1vWz 2015 06 11.33793 15 08 27.670 -20 20 03.11 22.3w 554982 F51 C~1vWz 2015 06 11.34914 15 08 27.653 -20 20 03.01 22.3w 554982 F51 C~1vWz 2015 07 19.27338 15 06 38.829 -20 11 17.75 23.1G 554982 F51 C~2rXx 2015 07 19.28435 15 06 38.807 -20 11 17.56 21.7G 554982 F51 C~2rXx 2015 07 19.29532 15 06 38.792 -20 11 17.50 22.1G 554982 F51 C~2rXx 2015 07 19.30630 15 06 38.764 -20 11 17.59 22.7G 554982 F51 C~2rXx 2016 03 07.58797 15 20 36.303 -21 06 46.79 21.8G 554982 F51 C~2rXy 2016 03 07.59900 15 20 36.299 -21 06 46.72 21.7G 554982 F51 C~2rXy 2016 03 07.62097 15 20 36.244 -21 06 46.45 22.0G 554982 F51 C~2rXy 2016 03 17.58705 15 20 16.707 -21 06 14.65 22.6G 554982 F51 C~2rXy 2016 05 07.44809 15 16 51.009 -20 55 36.07 22.4G 554982 F51 C~2rXy 2016 05 07.45920 15 16 50.952 -20 55 35.78 22.7G 554982 F51 C~2rXy 2016 05 07.47029 15 16 50.910 -20 55 35.33 22.3G 554982 F51 C~2rXy 2017 03 27.62869 15 25 31.413 -21 28 40.12 22.6G 554982 F51 C~2rXy 2017 04 26.48987 15 23 30.202 -21 22 45.31 22.3G 554982 F51 C~2rXy 2017 04 26.50108 15 23 30.142 -21 22 45.10 22.7G 554982 F51 C~2rXy 2017 04 26.51228 15 23 30.091 -21 22 45.08 23.2G 554982 F51 C~2rXy 2017 04 26.52350 15 23 30.040 -21 22 44.86 23.0G 554982 F51 C~2rXy 2017 05 19.44764 15 21 35.969 -21 16 11.22 22.2G 554982 F51 C~2rXy 2017 07 15.35931 15 17 57.818 -21 01 06.64 22.7G 554982 F51 C~2rXy 2018 04 10.33418 15 30 28.746 -21 49 30.08 21.9R 554982 G37 C~2bGy 2018 04 10.41002 15 30 28.468 -21 49 30.47 554982 G37 C~2bGy 2020 06 22.30003 15 36 20.494 -22 15 14.21 22.2w 554982 F51 C~3xqi 2020 06 22.31082 15 36 20.462 -22 15 13.96 22.1w 554982 F51 C~3xqi 2020 06 22.32162 15 36 20.405 -22 15 13.72 22.1w 554982 F51 C~3xqi 2020 06 22.33240 15 36 20.359 -22 15 13.58 22.3w 554982 F51 C~3xqi 2020 06 24.33329 15 36 12.483 -22 14 43.11 22.1w 554982 F51 C~3yMS 2020 06 24.34468 15 36 12.444 -22 14 42.96 22.3w 554982 F51 C~3yMS 2020 06 24.35610 15 36 12.408 -22 14 42.61 22.5w 554982 F51 C~3yMS 2021 05 12.455844 15 45 29.917 -22 47 39.05 22.1w 554982 F51 C~4n3G 2021 05 12.466297 15 45 29.851 -22 47 38.75 22.1w 554982 F51 C~4n3G 2021 05 12.476762 15 45 29.805 -22 47 38.81 21.9w 554982 F51 C~4n3G 2021 05 12.487237 15 45 29.745 -22 47 38.33 22.1w 554982 F51 C~4n3G
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 0.07 0.00 0.08
2 0.0681 0.00 -0.15 0.00 0.13
3 0.9120 0.00 -0.11 0.00 -0.53
4 0.9745 0.00 0.01 0.00 -0.16
5 0.9746 0.00 -0.13 0.00 0.37
6 0.9746 0.00 0.18 0.00 0.23
7 1.0484 0.00 0.10 0.00 -0.01
8 1.0484 0.00 0.06 0.00 -0.01
9 1.0485 0.00 0.03 0.00 0.06
10 1.0485 0.00 0.19 0.00 -0.05
11 1.0566 0.00 0.01 0.00 0.22
12 1.8265 0.00 0.25 0.00 0.00
13 1.8266 0.00 -0.02 0.00 -0.00
14 1.9603 0.00 -0.08 0.00 -0.07
15 1.9877 0.00 0.14 0.00 -0.27
16 1.9878 0.00 0.06 0.00 -0.31
17 1.9878 0.00 -0.19 0.00 -0.09
18 1.9878 0.00 -0.45 0.00 -0.11
19 2.0149 0.00 0.05 0.00 0.11
20 2.0149 0.00 0.08 0.00 -0.11
21 2.0149 0.00 0.20 0.00 0.08
22 2.0150 0.00 0.16 0.00 0.03
23 2.0996 0.00 -0.10 0.00 0.16
24 2.6946 0.00 -0.07 0.00 0.07
25 2.7795 0.00 0.03 0.00 -0.02
26 2.7822 0.00 0.02 0.00 -0.06
27 3.0279 0.00 -0.33 0.00 -0.21
28 3.0743 0.00 0.02 0.00 0.08
29 3.0743 0.00 0.10 0.00 0.26
30 3.0743 0.00 -0.22 0.00 0.19
31 3.0744 0.00 0.24 0.00 0.09
32 3.1782 0.00 0.08 0.00 0.02
33 3.1782 0.00 -0.02 0.00 0.11
34 3.1782 0.00 -0.01 0.00 0.08
35 3.1783 0.00 -0.20 0.00 -0.11
36 3.8142 0.00 0.05 0.00 -0.39
37 3.8143 0.00 0.25 0.00 -0.34
38 3.8143 0.00 -0.05 0.00 -0.09
39 3.8416 0.00 -0.03 0.00 0.05
40 3.9809 0.00 -0.11 0.00 -0.10
41 3.9809 0.00 -0.11 0.00 -0.01
42 3.9809 0.00 0.10 0.00 0.24
43 4.8684 0.00 -0.22 0.00 -0.02
44 4.9502 0.00 0.12 0.00 -0.03
45 4.9502 0.00 0.04 0.00 0.00
46 4.9502 0.00 0.09 0.00 -0.15
47 4.9503 0.00 0.14 0.00 -0.11
48 5.0130 0.00 -0.17 0.00 0.00
49 5.1688 0.00 0.03 0.00 -0.16
50 5.9053 0.00 -0.46 0.00 1.13
51 5.9055 0.00 -0.03 0.00 -0.07
52 8.1064 0.00 -0.03 0.00 -0.10
53 8.1064 0.00 0.15 0.00 -0.02
54 8.1064 0.00 -0.04 0.00 0.05
55 8.1065 0.00 -0.07 0.00 0.03
56 8.1120 0.00 0.06 0.00 0.04
57 8.1120 0.00 0.15 0.00 0.02
58 8.1120 0.00 0.29 0.00 0.20
59 8.9939 0.00 0.03 0.00 -0.18
60 8.9939 0.00 -0.14 0.00 -0.04
61 8.9939 0.00 -0.02 0.00 -0.26
62 8.9940 0.00 -0.10 0.00 0.07
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.
554982 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.424 42.424 42.424 ecceobj 0.034 0.034 0.034 incobj 3.219 3.219 3.219 qmin 40.561 40.563 40.572 qmax 45.099 45.143 45.057 amean 42.737 42.737 42.737 amin 42.414 42.414 42.415 amax 43.069 43.076 43.068 emean 0.029 0.029 0.029 emin 0.009 0.009 0.010 emax 0.047 0.048 0.047 imean 3.580 3.580 3.581 imin 2.457 2.456 2.456 imax 4.439 4.441 4.439 excite_mean 0.069 0.069 0.069 fracstop 1.000 1.000 1.000 cjmean 3.081 3.081 3.081 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 188.0 187.7 188.1 kozaiamp 180.0 180.0 179.9