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: MA67393
# Created Wed May 8 01:19:19 2024
# Orbit generated from Bernstein formalism
# Fitting 11 observations of 11
# Arc: 56.06d
# First observation: 2015/02/18
# Last observation: 2015/04/15
Preliminary a, adot, b, bdot, g, gdot:
-0.000014 0.047145 -0.000005 0.004573 0.030471 0.000000
# Chi-squared of fit: 2.57 DOF: 16 RMS: 0.09
# Min/Max residuals: -0.24 0.14
# Exact a, adot, b, bdot, g, gdot:
1.686268E-05 2.989125E-02 2.964245E-06 4.585136E-03 2.763313E-02 3.899627E-03
# Covariance matrix:
6.4409E-13 3.0787E-10 -1.0593E-13 -1.6895E-13 5.1441E-11 6.2473E-11
3.0787E-10 6.1884E-07 -2.0289E-10 -7.3464E-10 1.0034E-07 -4.5230E-07
-1.0593E-13 -2.0289E-10 4.5603E-13 -3.0162E-12 -3.2939E-11 1.3672E-10
-1.6895E-13 -7.3464E-10 -3.0162E-12 4.2495E-11 -1.1711E-10 1.1279E-09
5.1441E-11 1.0034E-07 -3.2939E-11 -1.1711E-10 1.6282E-08 -7.0427E-08
6.2473E-11 -4.5230E-07 1.3672E-10 1.1279E-09 -7.0427E-08 1.1854E-06
# lat0 lon0 xBary yBary zBary JD0
2.427913 176.675981 0.457301 0.037125 -0.872117 2457071.795258
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 31.32536 +/- 10.272
Argument of Peri: 330.14434 +/- 15.671
Long of Asc Node: 160.88789 +/- 0.380
Inclination: 9.04044 +/- 0.218
Eccentricity: 0.18741366 +/- 0.0291
Semi-Major Axis: 43.49623317 +/- 1.7281
Time of Perihelion: 2447953.1330 +/- 2939.8
Perihelion: 35.34444483 +/- 1.8899
Aphelion: 51.64802152 +/- 2.4105
Period (y) 286.8704 +/- 17.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.94310718 +/- 0.1667
Ecliptic Y 2.60354430 +/- 0.0097
Ecliptic Z 1.53313208 +/- 0.0071
Ecliptic XDOT -0.00054153 +/- 0.0001
Ecliptic YDOT -0.00294091 +/- 0.0001
Ecliptic ZDOT 0.00047034 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.06645525 +/- 0.1661
Geocenter to KBO 36.18844414 +/- 0.1671
# Hcoef: 7.78
The following table shows the complete astrometric record for MA67393. 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 (MA67393) followed by the observatory code and reference code for the source of the astrometry.
2015 02 18.29448 11 51 39.778 +03 32 58.06 22.7R MA67393 695 2015 02 18.38762 11 51 39.384 +03 33 01.27 MA67393 695 2015 02 18.47664 11 51 38.989 +03 33 03.99 MA67393 695 2015 03 16.27118 11 49 38.313 +03 47 50.61 23.2R MA67393 G37 2015 03 16.34354 11 49 37.948 +03 47 53.30 MA67393 G37 2015 03 23.16519 11 49 04.237 +03 51 50.50 23.3R MA67393 695 2015 03 23.22929 11 49 03.919 +03 51 52.63 MA67393 695 2015 03 23.28872 11 49 03.612 +03 51 54.65 MA67393 695 2015 04 15.20534 11 47 17.068 +04 04 00.37 23.2R MA67393 695 2015 04 15.28229 11 47 16.757 +04 04 02.37 MA67393 695 2015 04 15.35550 11 47 16.447 +04 04 04.45 MA67393 695
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 0.05 0.00 -0.07
2 0.0003 -6.69 0.04 0.60 0.14
3 0.0005 -13.20 -0.09 0.74 -0.07
4 0.0711 -2023.28 0.04 96.01 -0.07
5 0.0713 -2029.36 -0.04 96.31 0.06
6 0.0900 -2586.68 0.00 113.55 0.07
7 0.0902 -2591.89 0.06 113.61 0.01
8 0.0903 -2596.91 -0.06 113.64 -0.07
9 0.1531 -4348.83 -0.24 146.87 -0.01
10 0.1533 -4353.90 0.10 146.86 -0.03
11 0.1535 -4358.99 0.14 146.93 0.03
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.
MA67393 quality flag:1 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 43.124 50.097 38.300 ecceobj 0.182 0.280 0.154 incobj 9.074 8.424 9.806 qmin 33.888 34.915 31.796 qmax 53.263 66.798 46.465 amean 43.284 50.336 38.661 amin 42.835 49.759 38.044 amax 43.834 51.128 39.336 emean 0.183 0.285 0.131 emin 0.151 0.268 0.102 emax 0.217 0.307 0.181 imean 9.140 7.149 9.074 imin 6.923 5.878 6.451 imax 11.480 8.463 11.105 excite_mean 0.242 0.311 0.206 fracstop 1.000 1.000 1.000 cjmean 3.022 3.057 2.998 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 179.2 174.7 183.5 kozaiamp 180.0 180.0 180.0