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: 19QN111 # Created Mon Apr 28 01:11:17 2025 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.10y # First observation: 2019/08/30 # Last observation: 2021/10/06 Preliminary a, adot, b, bdot, g, gdot: -0.000002 0.020305 -0.000000 0.000169 0.022202 0.000000 # Chi-squared of fit: 3.49 DOF: 14 RMS: 0.10 # Min/Max residuals: -0.17 0.23 # Exact a, adot, b, bdot, g, gdot: 1.449680E-05 2.033102E-02 -6.798534E-08 1.694853E-04 2.221529E-02 6.949016E-04 # Covariance matrix: 7.3901E-13 6.6829E-13 -2.8862E-15 3.9063E-15 1.6517E-12 1.8346E-11 6.6829E-13 4.1555E-12 -1.0109E-14 3.0140E-14 5.2121E-12 1.0290E-10 -2.8862E-15 -1.0109E-14 3.3942E-13 -2.1530E-13 -1.4896E-14 -2.5101E-13 3.9063E-15 3.0140E-14 -2.1530E-13 2.4166E-13 3.3258E-14 8.6293E-13 1.6517E-12 5.2121E-12 -1.4896E-14 3.3258E-14 8.0684E-12 1.2543E-10 1.8346E-11 1.0290E-10 -2.5101E-13 8.6293E-13 1.2543E-10 2.8239E-09 # lat0 lon0 xBary yBary zBary JD0 -2.655036 -7.880121 0.268279 -0.044827 -0.966814 2458725.713221 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 122.59576 +/- 2.155 Argument of Peri: 153.89836 +/- 2.154 Long of Asc Node: 71.66813 +/- 0.030 Inclination: 2.63984 +/- 0.000 Eccentricity: 0.03814663 +/- 0.0021 Semi-Major Axis: 45.01493008 +/- 0.0109 Time of Perihelion: 2421153.5218 +/- 660.1 Perihelion: 43.29776208 +/- 0.0956 Aphelion: 46.73209808 +/- 0.0957 Period (y) 302.0251 +/- 0.11 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 45.46588932 +/- 0.0057 Ecliptic Y -6.57023346 +/- 0.0008 Ecliptic Z -2.08516874 +/- 0.0003 Ecliptic XDOT 0.00043769 +/- 0.0000 Ecliptic YDOT 0.00247069 +/- 0.0000 Ecliptic ZDOT 0.00001667 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.98546496 +/- 0.0056 Geocenter to KBO 45.01404363 +/- 0.0058 # Hcoef: 8.66
The following table shows the complete astrometric record for 19QN111. 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 (19QN111) followed by the observatory code and reference code for the source of the astrometry.
2019 08 30.212420 23 35 15.666 -05 33 54.46 25.1r 19QN111 W84 C~7XLj 2019 08 30.387214 23 35 14.974 -05 33 59.08 25.1r 19QN111 W84 C~7XLj 2019 09 28.012277 23 33 18.582 -05 46 25.90 25.1r 19QN111 W84 C~7XLj 2019 09 28.177548 23 33 17.914 -05 46 29.87 25.1r 19QN111 W84 C~7XLj 2020 10 20.004233 23 36 11.080 -05 26 39.00 25.2r 19QN111 W84 C~7XLj 2020 10 20.172968 23 36 10.485 -05 26 41.97 25.2r 19QN111 W84 C~7XLj 2020 10 22.003924 23 36 04.554 -05 27 16.04 25.3r 19QN111 W84 C~7XLj 2020 10 22.173214 23 36 03.995 -05 27 19.10 25.3r 19QN111 W84 C~7XLj 2021 10 06.002765 23 41 19.293 -04 53 16.50 25.3r 19QN111 W84 C~7XLj 2021 10 06.167954 23 41 18.628 -04 53 20.76 25.3r 19QN111 W84 C~7XLj
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 -0.01 0.00 0.04
2 0.0005 -11.32 0.01 -0.15 -0.04
3 0.0788 -1902.42 -0.07 1.04 -0.06
4 0.0793 -1913.15 0.07 1.33 0.02
5 1.1411 932.19 0.10 72.15 -0.12
6 1.1416 922.86 -0.16 72.95 0.23
7 1.1466 828.04 0.06 76.76 -0.03
8 1.1471 819.17 0.00 77.25 0.01
9 2.1021 5954.84 0.17 81.14 0.10
10 2.1025 5944.01 -0.17 81.18 -0.14
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.
19QN111 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.069 45.102 45.036 ecceobj 0.033 0.034 0.033 incobj 2.641 2.641 2.641 qmin 42.688 42.686 42.603 qmax 47.436 47.447 47.353 amean 44.947 44.979 44.914 amin 44.603 44.629 44.567 amax 45.308 45.337 45.279 emean 0.033 0.033 0.033 emin 0.019 0.020 0.019 emax 0.047 0.047 0.046 imean 1.214 1.215 1.213 imin 0.730 0.737 0.723 imax 1.666 1.665 1.667 excite_mean 0.039 0.040 0.039 fracstop 1.000 1.000 1.000 cjmean 3.111 3.112 3.111 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 211.3 212.7 209.3 kozaiamp 180.0 180.0 180.0