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: 14RM74 # Created Sun Dec 22 02:10:01 2024 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 4.25y # First observation: 2014/09/04 # Last observation: 2018/12/03 Preliminary a, adot, b, bdot, g, gdot: 0.000115 0.024820 0.000088 -0.002889 0.023195 0.000000 # Chi-squared of fit: 9.88 DOF: 46 RMS: 0.11 # Min/Max residuals: -0.25 0.22 # Exact a, adot, b, bdot, g, gdot: 1.594368E-05 2.432967E-02 -2.214633E-06 -2.811561E-03 2.261735E-02 -2.419480E-03 # Covariance matrix: 2.1037E-13 1.5420E-15 3.4970E-14 -1.9134E-15 1.6575E-13 2.9952E-14 1.5420E-15 3.3097E-13 7.7303E-14 -5.6269E-14 2.9817E-13 3.5327E-12 3.4970E-14 7.7303E-14 1.4405E-13 -5.2949E-14 1.1054E-13 7.6814E-13 -1.9134E-15 -5.6269E-14 -5.2949E-14 3.6792E-14 -4.6682E-14 -6.8223E-13 1.6575E-13 2.9817E-13 1.1054E-13 -4.6682E-14 4.7065E-13 2.8015E-12 2.9952E-14 3.5327E-12 7.6814E-13 -6.8223E-13 2.8015E-12 4.3304E-11 # lat0 lon0 xBary yBary zBary JD0 -32.018437 47.155104 0.920863 -0.221310 -0.354201 2456904.895908 # Heliocentric elements and errors Epoch: 2456900.5000 = 2014/08/31 Mean Anomaly: 347.91269 +/- 0.022 Argument of Peri: 285.04570 +/- 0.052 Long of Asc Node: 149.58879 +/- 0.001 Inclination: 32.48452 +/- 0.000 Eccentricity: 0.35696763 +/- 0.0002 Semi-Major Axis: 67.36954233 +/- 0.0143 Time of Perihelion: 2463681.9258 +/- 12.2 Perihelion: 43.32079667 +/- 0.0152 Aphelion: 91.41828798 +/- 0.0229 Period (y) 552.9726 +/- 0.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.44870414 +/- 0.0008 Ecliptic Y 27.16793828 +/- 0.0008 Ecliptic Z -23.44194106 +/- 0.0007 Ecliptic XDOT -0.00245572 +/- 0.0000 Ecliptic YDOT 0.00168393 +/- 0.0000 Ecliptic ZDOT -0.00013317 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.57752148 +/- 0.0008 Geocenter to KBO 44.21384381 +/- 0.0013 # Hcoef: 6.92
The following table shows the complete astrometric record for 14RM74. 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 (14RM74) followed by the observatory code and reference code for the source of the astrometry.
2014 09 04.39513 03 34 17.450 -13 50 12.88 24.8g 14RM74 W84 C~4yUF 2014 09 04.39804 03 34 17.45 -13 50 13.2 23.1r 14RM74 W84 C~3cnV 2014 09 20.34370 03 33 57.459 -14 01 53.05 23.8g 14RM74 W84 C~4yUF 2014 09 27.33351 03 33 42.162 -14 06 52.57 23.9g 14RM74 W84 C~4yUF 2014 09 30.32338 03 33 34.505 -14 08 57.26 23.0i 14RM74 W84 C~4yUF 2014 10 28.35571 03 31 56.005 -14 25 37.09 23.2r 14RM74 W84 C~4yUF 2014 10 29.35824 03 31 51.787 -14 26 05.11 23.1i 14RM74 W84 C~4yUF 2014 10 31.29172 03 31 43.578 -14 26 57.35 23.6g 14RM74 W84 C~4yUF 2014 11 03.34516 03 31 30.368 -14 28 14.93 23.6r 14RM74 W84 C~4yUF 2014 11 21.25928 03 30 09.968 -14 33 33.71 23.3r 14RM74 W84 C~4yUF 2015 11 08.31969 03 36 56.747 -14 16 03.54 23.5r 14RM74 W84 C~4yUF 2015 11 08.32245 03 36 56.719 -14 16 03.80 23.4r 14RM74 W84 C~4yUF 2015 11 08.32382 03 36 56.717 -14 16 03.83 22.9i 14RM74 W84 C~4yUF 2015 11 08.32519 03 36 56.714 -14 16 03.73 24.2g 14RM74 W84 C~4yUF 2016 01 16.13187 03 32 38.51 -14 08 57.1 23.2r 14RM74 W84 C~3cnV 2016 01 16.13324 03 32 38.515 -14 08 56.95 23.3i 14RM74 W84 C~4yUF 2016 11 03.27391 03 43 03.650 -13 59 49.30 23.6r 14RM74 W84 C~4yUF 2016 11 03.27527 03 43 03.663 -13 59 49.02 23.3i 14RM74 W84 C~4yUF 2016 11 10.32002 03 42 32.488 -14 02 27.61 23.2r 14RM74 W84 C~4yUF 2016 11 10.32140 03 42 32.452 -14 02 27.58 24.3g 14RM74 W84 C~4yUF 2017 12 10.20199 03 46 07.605 -13 51 32.92 23.5g 14RM74 W84 C~4yUF 2018 02 03.08956 03 43 42.811 -13 28 49.71 22.8i 14RM74 W84 C~4yUF 2018 02 07.08011 03 43 41.768 -13 25 59.69 23.7g 14RM74 W84 C~4yUF 2018 11 27.15793 03 52 56.334 -13 35 30.06 23.1i 14RM74 W84 C~4yUF 2018 11 29.27886 03 52 46.597 -13 35 45.09 23.3r 14RM74 W84 C~4yUF 2018 12 03.20297 03 52 28.752 -13 36 02.76 23.7g 14RM74 W84 C~4yUF
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 0.22 0.00 0.05
2 0.0000 -0.09 0.19 -0.31 -0.14
3 0.0437 -474.47 -0.02 -591.46 0.07
4 0.0628 -771.56 -0.16 -817.27 -0.08
5 0.0710 -913.21 -0.06 -906.10 -0.04
6 0.1477 -2566.11 -0.02 -1470.26 -0.04
7 0.1505 -2632.75 -0.04 -1480.27 0.04
8 0.1558 -2761.81 0.07 -1497.58 0.12
9 0.1641 -2967.69 -0.07 -1519.23 0.16
10 0.2132 -4178.24 -0.08 -1504.69 -0.17
11 1.1771 1791.32 0.17 -2137.64 0.09
12 1.1771 1790.86 -0.11 -2137.78 -0.04
13 1.1771 1790.82 -0.05 -2137.80 -0.06
14 1.1771 1790.81 0.03 -2137.69 0.05
15 1.3655 -1695.69 -0.07 -680.03 0.01
16 1.3655 -1695.58 0.07 -679.91 0.08
17 2.1653 7188.31 -0.23 -2722.16 -0.06
18 2.1653 7188.58 0.13 -2721.95 0.17
19 2.1846 6707.86 0.15 -2743.49 -0.17
20 2.1846 6707.37 -0.25 -2743.31 0.01
21 3.2657 9900.74 -0.07 -3021.84 0.01
22 3.4160 8271.01 0.00 -1104.20 0.06
23 3.4269 8305.42 0.16 -936.86 -0.20
24 4.2293 15901.72 0.03 -3856.08 -0.00
25 4.2351 15760.83 -0.03 -3828.08 -0.03
26 4.2459 15505.59 0.03 -3767.38 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.
14RM74 quality flag:2 Type: 10:3EEEEEE10:3EEEEEE SCATNEAR axisobj 68.041 68.078 68.004 ecceobj 0.362 0.362 0.361 incobj 32.447 32.447 32.447 qmin 38.376 36.392 42.613 qmax 97.422 99.315 93.026 amean 67.186 67.186 67.186 amin 66.424 66.389 66.376 amax 68.197 68.262 68.169 emean 0.397 0.411 0.353 emin 0.346 0.346 0.342 emax 0.429 0.458 0.365 imean 29.430 28.674 31.348 imin 28.148 26.393 31.070 imax 31.404 31.408 31.593 excite_mean 0.632 0.632 0.629 fracstop 1.000 1.000 1.000 cjmean 2.835 2.835 2.835 libcent 0 201.4 194.7 -180.0 libamp 0 87.8 54.8 -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 305.0 318.4 174.1 kozaiamp 180.0 33.4 180.0