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: 15RZ277
# Created Fri Nov 22 02:10:26 2024
# Orbit generated from Bernstein formalism
# Fitting 26 observations of 27
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000081 0.009739 -0.000002 -0.000981 0.014866 0.000000
# Chi-squared of fit: 14.24 DOF: 46 RMS: 0.13
# Min/Max residuals: -0.40 0.31
# Exact a, adot, b, bdot, g, gdot:
1.152959E-05 9.643277E-03 -1.556681E-06 -9.825581E-04 1.481764E-02 4.910633E-03
# Covariance matrix:
2.5170E-13 2.8728E-14 2.2372E-15 -1.8690E-14 2.4033E-13 8.7211E-12
2.8728E-14 1.5987E-13 3.1138E-15 -1.9123E-14 1.7613E-13 8.8754E-12
2.2372E-15 3.1138E-15 1.0770E-13 -6.8572E-14 6.6572E-15 6.8132E-13
-1.8690E-14 -1.9123E-14 -6.8572E-14 9.4371E-14 -4.3210E-14 -3.3810E-12
2.4033E-13 1.7613E-13 6.6572E-15 -4.3210E-14 4.3002E-13 2.0077E-11
8.7211E-12 8.8754E-12 6.8132E-13 -3.3810E-12 2.0077E-11 1.5617E-09
# lat0 lon0 xBary yBary zBary JD0
0.864607 6.529597 1.012823 -0.001179 0.084354 2457197.064548
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 76.33595 +/- 0.579
Argument of Peri: 45.24745 +/- 0.232
Long of Asc Node: 194.16112 +/- 0.002
Inclination: 5.84197 +/- 0.002
Eccentricity: 0.44553603 +/- 0.0024
Semi-Major Axis: 61.96214169 +/- 0.1659
Time of Perihelion: 2419414.6139 +/- 242.9
Perihelion: 34.35577505 +/- 0.1737
Aphelion: 89.56850832 +/- 0.2815
Period (y) 487.7506 +/- 1.96
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 67.06960606 +/- 0.0030
Ecliptic Y 6.65829869 +/- 0.0003
Ecliptic Z 1.01831180 +/- 0.0000
Ecliptic XDOT 0.00069899 +/- 0.0000
Ecliptic YDOT 0.00186747 +/- 0.0000
Ecliptic ZDOT -0.00016777 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 67.40698745 +/- 0.0030
Geocenter to KBO 67.48714988 +/- 0.0030
# Hcoef: 6.81
The following table shows the complete astrometric record for 15RZ277. 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 (15RZ277) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.56377 00 22 36.542 +03 23 11.81 25.5r 15RZ277 568 C~2lVO 2015 07 14.58367 00 22 37.618 +03 23 23.54 25.5r 15RZ277 568 C~2lVO 2015 07 19.56270 00 22 34.458 +03 23 04.18 25.0r 15RZ277 568 C~2lVO 2015 08 11.47114 00 22 04.245 +03 19 52.20 24.7r 15RZ277 568 C~2lVO 2015 09 08.38042 00 20 59.557 +03 12 50.45 24.8r 15RZ277 568 C~2lVO 2015 09 08.48459 00 20 59.272 +03 12 48.79 24.8r 15RZ277 568 C~2lVO 2015 09 08.52681 00 20 59.156 +03 12 48.05 25.1r 15RZ277 568 C~2lVO 2015 09 09.50371 00 20 56.503 +03 12 30.58 25.4w 15RZ277 568 C~2lVO 2015 09 10.44466 00 20 53.936 +03 12 13.66 25.0w 15RZ277 568 C~2lVO 2015 09 16.42676 00 20 37.245 +03 10 23.15 25.4w 15RZ277 568 C~2lVO 2015 10 03.34014 00 19 48.369 +03 04 58.03 23.8r 15RZ277 568 C~2lVO 2015 10 07.32360 00 19 36.852 +03 03 41.07 25.1r 15RZ277 568 C~2lVO 2015 10 07.37570 00 19 36.726 +03 03 39.87 24.6r 15RZ277 568 C~2lVO 2015 11 07.21826 00 18 16.804 +02 54 33.05 25.6w 15RZ277 568 C~2lVO 2015 11 07.27071 00 18 16.675 +02 54 32.43 25.5w 15RZ277 568 C~2lVO 2015 11 08.31542 00 18 14.427 +02 54 17.06 24.5w 15RZ277 568 C~2lVO 2015 12 07.29452 00 17 31.640 +02 49 01.65 25.6w 15RZ277 568 C~2lVO 2016 01 01.22389 00 17 30.235 +02 48 16.48 25.3w 15RZ277 568 C~2lVO 2016 09 05.55294 00 23 13.637 +03 23 34.34 25.2w 15RZ277 568 C~2lVO 2016 09 07.49232 00 23 08.485 +03 23 00.48 25.1w 15RZ277 568 C~2lVO 2016 09 26.57548 00 22 14.718 +03 17 04.95 25.7w 15RZ277 568 C~2lVO 2016 12 24.23886 00 19 34.578 +02 58 13.12 15RZ277 568 C~2lVO 2017 01 02.23941 00 19 38.722 +02 58 27.39 25.4w 15RZ277 568 C~2lVO 2017 09 15.45412 00 24 54.816 +03 30 42.61 27.0w 15RZ277 568 C~2lVO 2017 09 22.51940 00 24 34.823 +03 28 30.29 25.0w 15RZ277 568 C~2lVO 2017 11 22.37572 00 22 03.926 +03 11 22.39 25.4w 15RZ277 568 C~2lVO 2017 12 23.31586 00 21 40.902 +03 08 14.46 25.2w 15RZ277 568 C~2lVO
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 -0.26 0.00 0.10
2 0.0575 19.44 -0.03 4.39 -0.14
3 0.0712 -31.68 0.20 5.35 -0.15
4 0.1339 -523.13 0.18 8.20 0.12
5 0.2103 -1579.72 -0.05 4.70 -0.08
6 0.2106 -1584.30 0.05 4.87 0.08
7 0.2107 -1586.19 0.06 4.88 0.09
8 0.2134 -1629.59 0.03 4.58 0.08
9 0.2160 -1671.60 0.06 4.28 0.08
10 0.2323 -1944.92 -0.05 1.89 -0.25
11 0.2786 -2745.98 -0.14 -6.38 -0.02
12 0.2896 -2934.90 -0.12 -8.63 0.31
13 0.2897 -2937.11 0.17 -8.98 -0.03
14 0.3741 -4253.41 0.09 -36.00 -0.11
15 0.3743 -4255.43 -0.03 -35.80 0.12
16 0.3771 -4292.45 ( -0.04) -36.55 ( 0.47)
17 0.4565 -5006.36 -0.05 -71.63 -0.01
18 0.5247 -5043.63 0.03 -104.74 -0.14
19 1.2046 519.01 0.06 -199.17 -0.03
20 1.2099 434.76 0.07 -199.73 -0.04
21 1.2622 -445.35 -0.40 -207.49 0.03
22 1.5049 -3096.26 -0.15 -296.21 -0.04
23 1.5296 -3033.60 0.17 -307.73 -0.11
24 2.2310 2079.86 -0.08 -405.05 0.14
25 2.2504 1752.57 0.12 -408.23 -0.01
26 2.4170 -729.42 -0.05 -458.05 -0.17
27 2.5017 -1120.49 0.12 -494.04 0.17
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.
15RZ277 quality flag:2 Type: 3:1EE 3:1EE SCATNEAR axisobj 62.558 63.055 62.080 ecceobj 0.442 0.449 0.435 incobj 5.800 5.800 5.800 qmin 33.948 33.739 34.092 qmax 93.488 93.542 91.078 amean 62.631 62.629 60.852 amin 61.543 61.598 58.936 amax 64.008 63.989 62.882 emean 0.448 0.450 0.425 emin 0.435 0.439 0.403 emax 0.461 0.463 0.449 imean 6.031 6.054 6.010 imin 5.890 5.917 5.035 imax 6.208 6.208 6.922 excite_mean 0.460 0.462 0.438 fracstop 1.000 1.000 1.000 cjmean 3.045 3.042 3.054 libcent 0 179.8 179.7 -180.0 libamp 0 160.7 154.0 -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 165.9 171.4 183.2 kozaiamp 180.0 180.0 180.0