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: 17EG53 # Created Wed Jul 17 01:11:32 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 45 observations of 45 # Arc: 18.03y # First observation: 2000/11/30 # Last observation: 2018/12/12 # Chi-squared of fit: 31.06 DOF: 84 RMS: 0.15 # Min/Max residuals: -0.48 0.30 # Exact a, adot, b, bdot, g, gdot: 1.429332E-05 1.982814E-02 1.474974E-06 2.362393E-03 2.214648E-02 -2.615688E-03 # Covariance matrix: 3.2062E-13 -2.7455E-14 7.0276E-15 -1.3249E-15 6.3516E-14 -3.2049E-14 -2.7455E-14 1.7847E-14 -1.6592E-15 1.9846E-15 2.3713E-14 4.5811E-14 7.0276E-15 -1.6592E-15 2.4784E-13 -1.6111E-14 4.8173E-15 -4.5879E-15 -1.3249E-15 1.9846E-15 -1.6111E-14 1.3906E-15 2.8763E-15 5.4461E-15 6.3516E-14 2.3713E-14 4.8173E-15 2.8763E-15 1.3117E-13 6.4608E-14 -3.2049E-14 4.5811E-14 -4.5879E-15 5.4461E-15 6.4608E-14 1.2572E-13 # lat0 lon0 xBary yBary zBary JD0 -15.945718 129.495018 0.855737 -0.131334 -0.459052 2451878.903429 # Heliocentric elements and errors Epoch: 2451878.5000 = 2000/11/30 Mean Anomaly: 261.95084 +/- 0.023 Argument of Peri: 46.54167 +/- 0.016 Long of Asc Node: 195.39843 +/- 0.000 Inclination: 17.06069 +/- 0.000 Eccentricity: 0.15072250 +/- 0.0000 Semi-Major Axis: 43.76658965 +/- 0.0025 Time of Perihelion: 2480682.5701 +/- 9.6 Perihelion: 37.16997988 +/- 0.0023 Aphelion: 50.36319942 +/- 0.0030 Period (y) 289.5491 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.25231473 +/- 0.0004 Ecliptic Y 34.42074202 +/- 0.0006 Ecliptic Z -12.40490638 +/- 0.0002 Ecliptic XDOT -0.00175279 +/- 0.0000 Ecliptic YDOT -0.00173268 +/- 0.0000 Ecliptic ZDOT 0.00036982 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.62199472 +/- 0.0005 Geocenter to KBO 45.15401272 +/- 0.0007 # Hcoef: 6.45
The following table shows the complete astrometric record for 17EG53. 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 (17EG53) followed by the observatory code and reference code for the source of the astrometry.
2000 11 30.402686 08 30 58.09 +02 28 10.5 17EG53 645 C~83F5 2000 11 30.406003 08 30 58.06 +02 28 10.3 17EG53 645 C~83F5 2001 02 20.164885 08 25 42.81 +02 41 05.4 17EG53 645 C~83F6 2001 02 20.165715 08 25 42.79 +02 41 05.2 17EG53 645 C~83F6 2001 02 20.168202 08 25 42.78 +02 41 05.2 17EG53 645 C~83F6 2010 01 09.231051 09 11 04.84 +00 57 53.4 17EG53 W91 C~83F6 2010 01 09.234245 09 11 04.82 +00 57 53.5 17EG53 W91 C~83F6 2010 01 25.317190 09 09 57.17 +01 01 32.4 17EG53 W91 C~83F6 2010 01 25.320401 09 09 57.15 +01 01 32.4 17EG53 W91 C~83F6 2013 03 27.125582 09 20 31.402 +00 56 48.33 22.0z 17EG53 W84 C~85J3 2013 04 03.053027 09 20 14.366 +01 00 12.97 22.4z 17EG53 W84 C~85J3 2015 04 11.051249 09 29 50.623 +00 42 19.01 22.5r 17EG53 W84 C~85J3 2015 04 11.053017 09 29 50.626 +00 42 19.46 17EG53 W84 C~85J3 2016 01 14.298553 09 40 21.419 -00 06 03.04 23.4g 17EG53 W84 C~85J3 2016 01 14.299935 09 40 21.411 -00 06 03.04 22.8r 17EG53 W84 C~85J3 2016 04 04.244078 09 35 02.15 +00 28 27.7 17EG53 T09 C~83F6 2016 04 04.255396 09 35 02.13 +00 28 28.0 17EG53 T09 C~83F6 2016 12 25.46448 09 46 25.33 -00 19 03.8 23.5r 17EG53 T09 C~81Bz 2016 12 25.46657 09 46 25.32 -00 19 03.5 23.4r 17EG53 T09 C~81Bz 2016 12 25.48124 09 46 25.29 -00 19 03.8 23.3r 17EG53 T09 C~81Bz 2016 12 25.49171 09 46 25.26 -00 19 03.7 23.3r 17EG53 T09 C~81Bz 2016 12 25.50217 09 46 25.26 -00 19 04.2 23.4r 17EG53 T09 C~81Bz 2017 01 21.56723 09 44 52.95 -00 15 27.8 22.1z 17EG53 T09 C~81Bz 2017 01 21.61644 09 44 52.73 -00 15 26.9 22.3z 17EG53 T09 C~81Bz 2017 01 21.63253 09 44 52.68 -00 15 26.6 22.2z 17EG53 T09 C~81Bz 2017 01 21.64058 09 44 52.64 -00 15 26.4 22.1z 17EG53 T09 C~81Bz 2017 01 26.47468 09 44 32.45 -00 14 05.8 22.1z 17EG53 T09 C~81Bz 2017 01 26.48538 09 44 32.39 -00 14 05.6 22.2z 17EG53 T09 C~81Bz 2017 01 26.49611 09 44 32.35 -00 14 05.4 22.0z 17EG53 T09 C~81Bz 2017 01 26.50952 09 44 32.30 -00 14 04.9 22.0z 17EG53 T09 C~81Bz 2017 01 28.43816 09 44 24.02 -00 13 29.7 23.9g 17EG53 T09 C~81Bz 2017 01 28.44234 09 44 24.01 -00 13 29.5 23.9g 17EG53 T09 C~81Bz 2017 01 28.45502 09 44 23.96 -00 13 29.3 23.9g 17EG53 T09 C~81Bz 2017 01 28.45712 09 44 23.95 -00 13 29.2 24.0g 17EG53 T09 C~81Bz 2017 01 28.46760 09 44 23.90 -00 13 28.8 23.9g 17EG53 T09 C~81Bz 2017 01 28.47182 09 44 23.88 -00 13 29.0 24.0g 17EG53 T09 C~81Bz 2017 03 01.042378 09 42 03.847 -00 00 19.24 23.4g 17EG53 W84 C~85J3 2017 03 04.41889 09 41 49.58 +00 01 22.0 22.3i 17EG53 T09 C~81Bz 2017 03 04.42156 09 41 49.56 +00 01 22.0 22.3i 17EG53 T09 C~81Bz 2017 03 06.35845 09 41 41.55 +00 02 21.3 22.3i 17EG53 T09 C~81Bz 2017 03 06.38871 09 41 41.43 +00 02 22.0 22.3i 17EG53 T09 C~81Bz 2017 03 06.40280 09 41 41.39 +00 02 22.6 22.3i 17EG53 T09 C~81Bz 2017 03 06.43499 09 41 41.24 +00 02 23.6 22.3i 17EG53 T09 C~81Bz 2018 02 09.320905 09 48 38.251 -00 20 37.43 22.0z 17EG53 W84 C~85J3 2018 12 12.302363 09 56 58.421 -00 40 30.25 23.6g 17EG53 W84 C~85J3
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 -0.02 0.00 0.05
2 0.0000 0.00 -0.36 0.00 -0.12
3 0.2239 0.00 0.25 0.00 0.16
4 0.2239 0.00 0.00 0.00 -0.06
5 0.2239 0.00 0.00 0.00 -0.12
6 9.1084 0.00 0.16 0.00 -0.04
7 9.1084 0.00 0.05 0.00 0.03
8 9.1524 0.00 0.13 0.00 0.23
9 9.1524 0.00 0.05 0.00 0.17
10 12.3196 0.00 -0.14 0.00 -0.17
11 12.3385 0.00 -0.11 0.00 -0.18
12 14.3591 0.00 -0.04 0.00 -0.17
13 14.3591 0.00 0.06 0.00 0.23
14 15.1209 0.00 0.06 0.00 -0.12
15 15.1209 0.00 0.02 0.00 -0.14
16 15.3425 0.00 -0.07 0.00 -0.02
17 15.3425 0.00 0.04 0.00 -0.05
18 16.0686 0.00 -0.16 0.00 -0.08
19 16.0686 0.00 -0.23 0.00 0.22
20 16.0687 0.00 -0.10 0.00 -0.08
21 16.0687 0.00 -0.13 0.00 0.02
22 16.0687 0.00 0.28 0.00 -0.48
23 16.1428 0.00 0.07 0.00 -0.07
24 16.1430 0.00 -0.15 0.00 0.07
25 16.1430 0.00 0.10 0.00 0.12
26 16.1430 0.00 0.00 0.00 0.20
27 16.1563 0.00 0.12 0.00 -0.02
28 16.1563 0.00 -0.08 0.00 -0.01
29 16.1563 0.00 0.01 0.00 -0.00
30 16.1564 0.00 0.14 0.00 0.26
31 16.1616 0.00 -0.13 0.00 -0.04
32 16.1616 0.00 -0.00 0.00 0.08
33 16.1617 0.00 0.08 0.00 0.04
34 16.1617 0.00 0.07 0.00 0.10
35 16.1617 0.00 0.01 0.00 0.30
36 16.1617 0.00 -0.01 0.00 0.02
37 16.2482 0.00 -0.10 0.00 -0.32
38 16.2574 0.00 -0.01 0.00 -0.15
39 16.2574 0.00 -0.14 0.00 -0.23
40 16.2627 0.00 -0.21 0.00 0.17
41 16.2628 0.00 -0.11 0.00 -0.06
42 16.2628 0.00 0.18 0.00 0.11
43 16.2629 0.00 -0.06 0.00 0.13
44 17.1935 0.00 0.02 0.00 -0.11
45 18.0312 0.00 0.26 0.00 0.18
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.
17EG53 quality flag:2 Type: SCATEXTD SCATEXTD SCATNEAR axisobj 43.641 43.641 43.642 ecceobj 0.151 0.151 0.151 incobj 17.066 17.066 17.066 qmin 33.358 33.343 33.345 qmax 54.560 54.582 54.617 amean 43.726 43.726 43.726 amin 43.318 43.339 43.335 amax 44.191 44.205 44.225 emean 0.147 0.148 0.147 emin 0.044 0.044 0.044 emax 0.235 0.235 0.235 imean 17.100 17.094 17.113 imin 14.548 14.542 14.564 imax 19.763 19.762 19.763 excite_mean 0.334 0.334 0.334 fracstop 1.000 1.000 1.000 cjmean 2.963 2.963 2.963 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 92.3 92.4 92.2 kozaiamp 53.2 53.0 53.2