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: 14YL50 # Created Sun Dec 22 02:10:14 2024 # Orbit generated from Bernstein formalism # Fitting 33 observations of 33 # Arc: 3.92y # First observation: 2014/12/16 # Last observation: 2018/11/15 Preliminary a, adot, b, bdot, g, gdot: 0.000061 0.030118 -0.000029 -0.003151 0.027635 0.000000 # Chi-squared of fit: 21.55 DOF: 60 RMS: 0.14 # Min/Max residuals: -0.37 0.36 # Exact a, adot, b, bdot, g, gdot: 1.999254E-05 3.032824E-02 -1.658321E-06 -3.201148E-03 2.637407E-02 2.707343E-03 # Covariance matrix: 1.0743E-13 -1.0409E-13 -2.2273E-15 8.4792E-15 -9.4945E-15 -6.2458E-13 -1.0409E-13 2.7164E-13 8.1041E-15 -3.0313E-14 1.7270E-14 2.1655E-12 -2.2273E-15 8.1041E-15 8.8103E-14 -3.6070E-14 -1.0589E-14 5.2556E-14 8.4792E-15 -3.0313E-14 -3.6070E-14 3.2386E-14 1.9027E-14 -2.3243E-13 -9.4945E-15 1.7270E-14 -1.0589E-14 1.9027E-14 6.3736E-13 1.2616E-12 -6.2458E-13 2.1655E-12 5.2556E-14 -2.3243E-13 1.2616E-12 2.1170E-11 # lat0 lon0 xBary yBary zBary JD0 -29.063882 24.844655 -0.842250 -0.246617 -0.444156 2457007.684690 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 12.59205 +/- 0.015 Argument of Peri: 234.50577 +/- 0.032 Long of Asc Node: 127.49291 +/- 0.001 Inclination: 29.15653 +/- 0.000 Eccentricity: 0.32395069 +/- 0.0001 Semi-Major Axis: 55.38263778 +/- 0.0117 Time of Perihelion: 2451734.8387 +/- 6.1 Perihelion: 37.44139379 +/- 0.0111 Aphelion: 73.32388178 +/- 0.0173 Period (y) 412.1627 +/- 0.13 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.17835131 +/- 0.0009 Ecliptic Y 14.90411734 +/- 0.0004 Ecliptic Z -18.41913748 +/- 0.0006 Ecliptic XDOT -0.00125044 +/- 0.0000 Ecliptic YDOT 0.00288720 +/- 0.0000 Ecliptic ZDOT -0.00042689 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.36834929 +/- 0.0008 Geocenter to KBO 37.91602440 +/- 0.0011 # Hcoef: 6.87
The following table shows the complete astrometric record for 14YL50. 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 (14YL50) followed by the observatory code and reference code for the source of the astrometry.
2014 12 16.183912 02 15 02.32 -17 26 03.9 22.9r 14YL50 W84 C~1yHA 2014 12 16.18392 02 15 02.345 -17 26 03.83 22.6r 14YL50 W84 C~4yVV 2014 12 16.185266 02 15 02.34 -17 26 03.5 22.9i 14YL50 W84 C~1yHA 2014 12 16.18527 02 15 02.346 -17 26 03.71 22.3i 14YL50 W84 C~4yVV 2014 12 20.168692 02 14 50.95 -17 24 23.9 23.6g 14YL50 W84 C~1yHA 2014 12 20.16870 02 14 50.959 -17 24 23.91 23.4g 14YL50 W84 C~4yVV 2014 12 20.170069 02 14 50.93 -17 24 23.8 22.8i 14YL50 W84 C~1yHA 2014 12 20.17007 02 14 50.948 -17 24 23.88 22.5i 14YL50 W84 C~4yVV 2014 12 24.16197 02 14 40.937 -17 22 29.97 23.0r 14YL50 W84 C~4yVV 2014 12 24.163310 02 14 40.94 -17 22 29.9 23.4g 14YL50 W84 C~1yHA 2014 12 24.16332 02 14 40.946 -17 22 29.84 23.5g 14YL50 W84 C~4yVV 2014 12 29.141528 02 14 30.52 -17 19 48.5 22.1z 14YL50 W84 C~352S 2014 12 29.142049 02 14 30.52 -17 19 48.6 23.1z 14YL50 W84 C~1yHA 2015 11 21.113588 02 23 43.95 -17 00 50.8 22.1z 14YL50 W84 C~1yHA 2015 11 21.11360 02 23 43.954 -17 00 50.92 22.2z 14YL50 W84 C~4yVV 2015 12 14.185567 02 22 08.95 -16 57 21.5 22.4i 14YL50 W84 C~1yHA 2015 12 14.18557 02 22 08.983 -16 57 21.92 22.1i 14YL50 W84 C~4yVV 2015 12 14.186944 02 22 08.95 -16 57 21.5 22.8r 14YL50 W84 C~1yHA 2015 12 14.18695 02 22 08.971 -16 57 21.90 22.5r 14YL50 W84 C~4yVV 2015 12 14.188287 02 22 08.93 -16 57 21.7 23.4g 14YL50 W84 C~1yHA 2015 12 14.18831 02 22 08.959 -16 57 21.94 23.1g 14YL50 W84 C~4yVV 2016 11 03.30268 02 32 05.995 -16 27 03.09 22.8r 14YL50 W84 C~4yVV 2016 11 03.30406 02 32 05.991 -16 27 03.10 23.3g 14YL50 W84 C~4yVV 2016 11 28.18779 02 30 04.446 -16 30 08.61 22.6i 14YL50 W84 C~4yVV 2016 12 30.08378 02 28 16.873 -16 19 49.36 22.5z 14YL50 W84 C~4yVV 2017 10 03.25087 02 41 26.956 -15 39 13.14 22.4z 14YL50 W84 C~4yVV 2017 10 19.27384 02 40 14.475 -15 48 58.78 22.9g 14YL50 W84 C~4yVV 2017 10 19.27520 02 40 14.471 -15 48 59.09 22.4i 14YL50 W84 C~4yVV 2017 10 19.27657 02 40 14.454 -15 48 59.04 22.9r 14YL50 W84 C~4yVV 2017 12 10.17808 02 36 05.916 -15 57 14.43 23.7g 14YL50 W84 C~4yVV 2018 01 17.09465 02 34 39.828 -15 37 44.28 23.7g 14YL50 W84 C~4yVV 2018 10 18.29380 02 47 06.221 -15 16 06.30 22.8r 14YL50 W84 C~4yVV 2018 11 15.28679 02 44 45.978 -15 26 23.65 22.4g 14YL50 W84 C~4yVV
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 -0.37 0.00 -0.05
2 0.0000 0.36 -0.02 -0.07 -0.12
3 0.0000 0.42 0.09 0.26 0.16
4 0.0000 0.42 0.09 0.04 -0.07
5 0.0109 -112.82 0.09 154.12 -0.01
6 0.0109 -112.70 0.21 154.06 -0.07
7 0.0109 -113.04 -0.10 154.32 0.13
8 0.0109 -112.83 0.11 154.15 -0.04
9 0.0218 -202.44 0.02 313.78 -0.15
10 0.0218 -202.38 0.11 313.83 -0.15
11 0.0218 -202.27 0.21 313.85 -0.13
12 0.0355 -279.53 -0.15 519.63 0.32
13 0.0355 -279.57 -0.19 519.54 0.20
14 0.9307 7485.66 -0.00 -1469.83 -0.05
15 0.9307 7485.66 0.01 -1469.97 -0.18
16 0.9938 6309.21 -0.09 -747.91 0.36
17 0.9938 6309.48 0.19 -748.48 -0.21
18 0.9938 6309.21 -0.03 -747.91 0.31
19 0.9938 6309.33 0.09 -748.40 -0.17
20 0.9939 6308.87 -0.33 -747.98 0.19
21 0.9939 6309.16 -0.03 -748.37 -0.20
22 1.8840 14936.77 0.03 -2447.62 -0.04
23 1.8840 14936.72 0.08 -2447.61 -0.05
24 1.9521 13250.41 -0.03 -1921.59 -0.03
25 2.0394 12068.26 0.13 -738.91 0.11
26 2.7983 23570.46 -0.04 -3092.78 0.01
27 2.8421 22361.26 0.07 -3200.27 0.11
28 2.8421 22361.08 -0.00 -3200.53 -0.15
29 2.8421 22360.87 -0.10 -3200.39 -0.00
30 2.9842 18846.01 -0.07 -2193.72 -0.08
31 3.0881 18172.31 0.02 -616.37 -0.00
32 3.8388 28694.05 -0.11 -3859.19 -0.05
33 3.9154 26553.31 0.16 -3577.75 0.11
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.
14YL50 quality flag:1 Type: 5:2EEE SCATNEAR 5:2EEE Type: 5:2EII axisobj 56.140 56.178 56.103 ecceobj 0.333 0.334 0.333 incobj 29.140 29.140 29.140 qmin 37.011 36.397 35.322 qmax 74.855 75.110 76.542 amean 55.461 55.462 55.461 amin 54.846 54.840 54.836 amax 56.202 56.227 56.223 emean 0.243 0.250 0.287 emin 0.196 0.176 0.228 emax 0.333 0.341 0.362 imean 30.169 29.928 28.855 imin 27.587 27.274 26.323 imax 31.290 31.585 30.599 excite_mean 0.560 0.560 0.563 fracstop 1.000 1.000 1.000 cjmean 2.818 2.817 2.818 libcent 0 182.0 -180.0 179.7 libamp 0 100.9 -180.0 84.1 libcent 1 195.4 -180.0 -180.0 libamp 1 159.8 -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 183.7 266.5 163.4 kozaiamp 47.2 50.2 70.2