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: 612217
# Created Sun Nov 24 02:07:39 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 64 observations of 64
# Arc: 23.02y
# First observation: 2001/04/26
# Last observation: 2024/05/04
# Chi-squared of fit: 114.41 DOF: 122 RMS: 0.24
# Min/Max residuals: -0.72 0.43
# Exact a, adot, b, bdot, g, gdot:
1.498961E-05 2.255081E-02 -7.704333E-07 -7.108926E-04 2.371961E-02 8.178076E-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
2.373958 -143.491693 0.008971 0.041819 -1.011515 2452025.564443
# Heliocentric elements and errors
Epoch: 2452026.5000 = 2001/04/27
Mean Anomaly: 108.77278 +/- 0.000
Argument of Peri: 14.81015 +/- 0.000
Long of Asc Node: 88.52631 +/- 0.000
Inclination: 2.94005 +/- 0.000
Eccentricity: 0.04080913 +/- 0.0000
Semi-Major Axis: 42.54377210 +/- 0.0000
Time of Perihelion: 2421401.9187 +/- 0.0
Perihelion: 40.80759758 +/- 0.0000
Aphelion: 44.27994663 +/- 0.0000
Period (y) 277.4995 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -34.67224935 +/- 0.0000
Ecliptic Y -25.65095033 +/- 0.0000
Ecliptic Z 1.74624811 +/- 0.0000
Ecliptic XDOT 0.00146168 +/- 0.0000
Ecliptic YDOT -0.00214775 +/- 0.0000
Ecliptic ZDOT -0.00007788 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.16460858 +/- 0.0000
Geocenter to KBO 42.15920811 +/- 0.0000
# Hcoef: 6.55
The following table shows the complete astrometric record for 612217. 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 (612217) followed by the observatory code and reference code for the source of the astrometry.
2001 04 26.06370 14 19 54.61 -11 26 46.0 22.7R 612217 809 Cd0940 2001 04 26.06370 14 19 54.61 -11 26 46.1 21.7R 612217 I03 Cl0812 2001 04 26.17021 14 19 54.12 -11 26 44.0 21.5R 612217 I03 Cl0812 2001 04 26.17021 14 19 54.12 -11 26 43.3 612217 809 Cd0940 2001 04 26.29482 14 19 53.52 -11 26 41.6 21.8R 612217 I03 Cl0812 2001 04 26.29482 14 19 53.52 -11 26 40.6 612217 809 Cd0940 2001 04 26.40156 14 19 53.06 -11 26 38.2 612217 809 Cd0940 2001 04 27.13784 14 19 49.70 -11 26 21.4 612217 809 Cd0940 2001 04 27.30981 14 19 48.91 -11 26 17.5 612217 809 Cd0940 2001 04 27.36375 14 19 48.66 -11 26 16.2 612217 809 Cd0940 2001 05 25.21555 14 17 47.24 -11 16 33.1 612217 309 Cd1312 2001 05 25.22042 14 17 47.22 -11 16 33.0 612217 309 Cd1312 2001 05 25.22712 14 17 47.20 -11 16 32.9 23. R 612217 309 Cd1312 2003 06 01.01684 14 27 12.24 -12 09 18.5 21.6R 612217 807 Ci2655 2003 06 01.10585 14 27 11.90 -12 09 16.9 612217 807 Ci2655 2003 07 06.27623 14 25 36.68 -12 03 10.6 22.7R 612217 568 Ci2655 2003 07 06.34710 14 25 36.61 -12 03 10.5 612217 568 Ci2655 2007 05 03.51003 14 49 08.37 -14 03 16.1 22.8R 612217 250 S~06AP 2007 05 03.51698 14 49 08.34 -14 03 16.0 612217 250 S~06AP 2007 05 03.52392 14 49 08.30 -14 03 15.9 612217 250 S~06AP 2007 05 03.53087 14 49 08.27 -14 03 15.7 612217 250 S~06AP 2007 05 08.24318 14 48 46.51 -14 01 39.6 22.2R 612217 304 Cu8806 2007 05 08.28983 14 48 46.27 -14 01 38.6 612217 304 Cu8806 2013 05 08.43408 15 18 49.142 -16 25 19.69 22.7G 612217 F51 C~36iU 2013 05 08.44817 15 18 49.076 -16 25 19.41 22.9G 612217 F51 C~36iU 2013 05 08.46225 15 18 49.002 -16 25 19.15 22.7G 612217 F51 C~36iU 2013 05 08.47639 15 18 48.925 -16 25 18.99 22.4G 612217 F51 C~36iU 2013 06 04.41508 15 16 45.262 -16 17 47.64 23.2G 612217 F51 C~36iU 2014 03 14.62089 15 27 12.610 -17 00 42.55 22.5G 612217 F51 C~36iU 2014 04 30.46155 15 24 30.532 -16 50 00.35 22.5G 612217 F51 C~36iU 2014 05 08.47847 15 23 53.289 -16 47 42.89 22.7G 612217 F51 C~36iU 2014 05 08.49059 15 23 53.235 -16 47 42.18 21.8G 612217 F51 C~36iU 2014 05 08.50270 15 23 53.179 -16 47 42.33 22.7G 612217 F51 C~36iU 2014 05 08.51482 15 23 53.113 -16 47 42.20 22.7G 612217 F51 C~36iU 2014 07 26.28985 15 19 19.463 -16 32 53.87 23.5G 612217 F51 C~36iU 2015 05 22.26927 15 27 53.60 -17 05 49.4 23.1V 612217 W84 C~1TiY 2015 05 23.18226 15 27 49.35 -17 05 34.7 612217 W84 C~1TiY 2015 05 24.18154 15 27 44.68 -17 05 18.6 612217 W84 C~1TiY 2015 05 24.42140 15 27 43.557 -17 05 15.13 22.3G 612217 F51 C~36iU 2015 05 24.43291 15 27 43.524 -17 05 15.10 22.4G 612217 F51 C~36iU 2015 05 24.44441 15 27 43.451 -17 05 14.85 23.6G 612217 F51 C~36iU 2015 05 24.45589 15 27 43.351 -17 05 14.65 23.1G 612217 F51 C~36iU 2015 05 25.40962 15 27 38.927 -17 04 59.40 22.8G 612217 F51 C~36iU 2015 06 11.35307 15 26 23.678 -17 00 47.00 22.3G 612217 F51 C~36iU 2015 07 19.27725 15 24 28.279 -16 55 07.21 22.8G 612217 F51 C~36iU 2016 05 07.46249 15 34 05.458 -17 31 04.45 22.1G 612217 F51 C~36iU 2016 05 07.47357 15 34 05.439 -17 31 04.37 22.7G 612217 F51 C~36iU 2016 05 07.48464 15 34 05.390 -17 31 04.06 23.5G 612217 F51 C~36iU 2017 03 25.58696 15 41 56.387 -18 01 32.45 23.2G 612217 F51 C~36iU 2017 04 26.49180 15 40 03.022 -17 54 48.24 23.6G 612217 F51 C~36iU 2017 04 26.50300 15 40 02.957 -17 54 48.18 23.2G 612217 F51 C~36iU 2017 04 26.51420 15 40 02.912 -17 54 48.04 22.8G 612217 F51 C~36iU 2017 04 26.52543 15 40 02.866 -17 54 47.81 23.4G 612217 F51 C~36iU 2017 05 19.41549 15 38 16.599 -17 48 53.67 22.6G 612217 F51 C~36iU 2017 05 19.42688 15 38 16.532 -17 48 53.52 23.6G 612217 F51 C~36iU 2017 05 19.43826 15 38 16.498 -17 48 52.80 22.4G 612217 F51 C~36iU 2017 05 19.44969 15 38 16.437 -17 48 53.05 22.7G 612217 F51 C~36iU 2017 07 15.33886 15 34 38.488 -17 37 59.69 23.4G 612217 F51 C~36iU 2018 05 19.43222 15 43 25.129 -18 09 23.32 21.6G 612217 F51 C~36iU 2018 05 19.44412 15 43 25.098 -18 09 23.60 22.1G 612217 F51 C~36iU 2018 05 19.45605 15 43 25.038 -18 09 23.26 22.5G 612217 F51 C~36iU 2018 05 19.46795 15 43 24.984 -18 09 22.88 22.6G 612217 F51 C~36iU 2024 05 04.362520 16 15 29.608 -20 03 02.40 22.7G 612217 G37 C~838o 2024 05 04.397680 16 15 29.436 -20 03 01.92 612217 G37 C~838o
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 0.03 0.00 0.05
2 0.0000 0.00 0.03 0.00 0.15
3 0.0003 0.00 0.08 0.00 0.43
4 0.0003 0.00 0.08 0.00 -0.27
5 0.0006 0.00 -0.24 0.00 0.28
6 0.0006 0.00 -0.24 0.00 -0.72
7 0.0009 0.00 0.25 0.00 0.22
8 0.0029 0.00 0.06 0.00 0.25
9 0.0034 0.00 0.19 0.00 0.23
10 0.0036 0.00 0.17 0.00 0.29
11 0.0798 0.00 0.08 0.00 0.33
12 0.0798 0.00 0.08 0.00 0.34
13 0.0798 0.00 0.18 0.00 0.32
14 2.0971 0.00 0.01 0.00 -0.26
15 2.0973 0.00 0.08 0.00 -0.12
16 2.1936 0.00 -0.35 0.00 -0.48
17 2.1938 0.00 0.19 0.00 -0.64
18 6.0190 0.00 -0.37 0.00 -0.31
19 6.0190 0.00 -0.34 0.00 -0.35
20 6.0191 0.00 -0.46 0.00 -0.40
21 6.0191 0.00 -0.43 0.00 -0.34
22 6.0320 0.00 0.39 0.00 0.11
23 6.0321 0.00 0.07 0.00 0.16
24 12.0339 0.00 0.11 0.00 -0.05
25 12.0339 0.00 0.14 0.00 -0.02
26 12.0339 0.00 0.04 0.00 -0.01
27 12.0340 0.00 -0.10 0.00 -0.10
28 12.1077 0.00 0.15 0.00 -0.34
29 12.8831 0.00 0.13 0.00 0.20
30 13.0114 0.00 0.42 0.00 -0.18
31 13.0333 0.00 0.02 0.00 -0.13
32 13.0333 0.00 0.08 0.00 0.37
33 13.0334 0.00 0.11 0.00 0.01
34 13.0334 0.00 -0.02 0.00 -0.07
35 13.2491 0.00 0.07 0.00 -0.06
36 14.0704 0.00 -0.59 0.00 0.24
37 14.0729 0.00 -0.12 0.00 0.16
38 14.0756 0.00 0.03 0.00 0.16
39 14.0763 0.00 0.01 0.00 -0.06
40 14.0763 0.00 0.34 0.00 -0.21
41 14.0763 0.00 0.07 0.00 -0.15
42 14.0764 0.00 -0.62 0.00 -0.13
43 14.0790 0.00 -0.30 0.00 -0.15
44 14.1254 0.00 -0.13 0.00 -0.09
45 14.2292 0.00 -0.33 0.00 -0.01
46 15.0319 0.00 -0.33 0.00 -0.04
47 15.0319 0.00 0.17 0.00 -0.14
48 15.0320 0.00 0.23 0.00 -0.01
49 15.9138 0.00 -0.07 0.00 0.10
50 16.0012 0.00 0.27 0.00 0.11
51 16.0012 0.00 0.04 0.00 0.01
52 16.0012 0.00 0.12 0.00 -0.02
53 16.0013 0.00 0.18 0.00 0.04
54 16.0639 0.00 0.03 0.00 -0.12
55 16.0640 0.00 -0.15 0.00 -0.15
56 16.0640 0.00 0.17 0.00 0.40
57 16.0640 0.00 0.09 0.00 -0.03
58 16.2198 0.00 0.07 0.00 -0.27
59 17.0633 0.00 -0.29 0.00 0.42
60 17.0633 0.00 0.12 0.00 -0.03
61 17.0634 0.00 0.08 0.00 0.13
62 17.0634 0.00 0.14 0.00 0.33
63 23.0234 0.00 0.06 0.00 0.03
64 23.0235 0.00 -0.14 0.00 0.12
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.
612217 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.467 42.467 42.467 ecceobj 0.040 0.040 0.040 incobj 2.939 2.939 2.939 qmin 39.523 39.516 39.521 qmax 46.311 46.323 46.288 amean 42.772 42.772 42.772 amin 42.437 42.439 42.436 amax 43.121 43.124 43.115 emean 0.050 0.050 0.050 emin 0.028 0.028 0.028 emax 0.074 0.074 0.074 imean 1.340 1.340 1.340 imin 0.056 0.056 0.056 imax 2.393 2.393 2.393 excite_mean 0.056 0.056 0.056 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 171.1 171.1 171.2 kozaiamp 180.0 180.0 179.9