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: 15RZ280
# Created Fri Nov 22 02:10:28 2024
# Orbit generated from Bernstein formalism
# Fitting 33 observations of 34
# Arc: 1.60y
# First observation: 2015/06/23
# Last observation: 2017/01/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000101 0.024424 -0.000008 -0.004981 0.024692 0.000000
# Chi-squared of fit: 10.60 DOF: 60 RMS: 0.10
# Min/Max residuals: -0.31 0.29
# Exact a, adot, b, bdot, g, gdot:
1.462302E-05 2.391769E-02 -2.814309E-06 -4.928463E-03 2.431422E-02 3.501051E-03
# Covariance matrix:
2.2602E-13 9.6354E-14 5.8434E-15 -8.0852E-14 2.8253E-13 1.1735E-11
9.6354E-14 4.4819E-13 1.4526E-14 -1.5251E-13 4.5697E-13 2.2034E-11
5.8434E-15 1.4526E-14 1.0454E-13 -1.0477E-13 2.1203E-14 1.8093E-12
-8.0852E-14 -1.5251E-13 -1.0477E-13 2.4104E-13 -2.2568E-13 -1.4195E-11
2.8253E-13 4.5697E-13 2.1203E-14 -2.2568E-13 6.8250E-13 3.2613E-11
1.1735E-11 2.2034E-11 1.8093E-12 -1.4195E-11 3.2613E-11 2.0375E-09
# lat0 lon0 xBary yBary zBary JD0
2.966211 10.107553 1.005487 -0.007572 0.147885 2457197.024748
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 54.48948 +/- 0.128
Argument of Peri: 97.29767 +/- 0.291
Long of Asc Node: 202.95192 +/- 0.001
Inclination: 11.92609 +/- 0.001
Eccentricity: 0.13336561 +/- 0.0018
Semi-Major Axis: 43.80280078 +/- 0.0223
Time of Perihelion: 2441163.1615 +/- 35.7
Perihelion: 37.96101375 +/- 0.0817
Aphelion: 49.64458781 +/- 0.0833
Period (y) 289.9085 +/- 0.22
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.46280229 +/- 0.0014
Ecliptic Y 6.19275481 +/- 0.0002
Ecliptic Z 2.12820685 +/- 0.0001
Ecliptic XDOT -0.00005925 +/- 0.0000
Ecliptic YDOT 0.00271930 +/- 0.0000
Ecliptic ZDOT -0.00053375 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.98924061 +/- 0.0014
Geocenter to KBO 41.12818796 +/- 0.0014
# Hcoef: 8.32
The following table shows the complete astrometric record for 15RZ280. 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 (15RZ280) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.52397 00 32 27.987 +06 43 48.25 25.0r 15RZ280 568 C~2nvs 2015 07 19.58736 00 32 39.551 +06 45 47.06 25.0r 15RZ280 568 C~2nvs 2015 08 13.48399 00 31 56.818 +06 41 43.53 20.7r 15RZ280 568 C~2nvs 2015 08 19.54662 00 31 39.427 +06 39 55.00 24.0r 15RZ280 568 C~2nvs 2015 08 19.58802 00 31 39.264 +06 39 54.07 24.7r 15RZ280 568 C~2nvs 2015 08 19.61668 00 31 39.180 +06 39 53.50 24.9r 15RZ280 568 C~2nvs 2015 08 20.42114 00 31 36.702 +06 39 37.71 24.8r 15RZ280 568 C~2nvs 2015 08 20.47055 00 31 36.537 +06 39 36.77 24.5r 15RZ280 568 C~2nvs 2015 09 07.56844 00 30 30.896 +06 32 29.80 24.7w 15RZ280 568 C~2nvs 2015 09 09.39585 00 30 23.439 +06 31 39.95 24.7r 15RZ280 568 C~2nvs 2015 09 09.43729 00 30 23.265 +06 31 38.77 24.8r 15RZ280 568 C~2nvs 2015 09 09.47825 00 30 23.087 +06 31 37.64 24.6r 15RZ280 568 C~2nvs 2015 09 10.50253 00 30 18.855 +06 31 09.18 24.7w 15RZ280 568 C~2nvs 2015 09 18.46210 00 29 44.768 +06 27 17.99 25.4w 15RZ280 568 C~2nvs 2015 10 08.34986 00 28 15.472 +06 16 49.97 15RZ280 568 C~2nvs 2015 10 08.40249 00 28 15.246 +06 16 48.26 24.9w 15RZ280 568 C~2nvs 2015 10 09.31945 00 28 11.145 +06 16 18.54 15RZ280 568 C~2nvs 2015 11 10.44543 00 26 03.562 +05 59 56.93 25.3w 15RZ280 568 C~2nvs 2015 11 10.47307 00 26 03.468 +05 59 56.21 24.9w 15RZ280 568 C~2nvs 2015 11 15.26831 00 25 48.913 +05 57 51.91 24.8w 15RZ280 568 C~2nvs 2015 12 08.24411 00 25 03.273 +05 50 15.53 24.9w 15RZ280 568 C~2nvs 2016 01 01.30664 00 25 05.464 +05 47 24.73 24.9w 15RZ280 568 C~2nvs 2016 09 05.49449 00 36 14.490 +06 50 14.32 15RZ280 568 C~2nvs 2016 09 06.44869 00 36 10.736 +06 49 49.24 15RZ280 568 C~2nvs 2016 09 06.48996 00 36 10.546 +06 49 48.19 15RZ280 568 C~2nvs 2016 09 26.44752 00 34 45.001 +06 40 05.48 23.9w 15RZ280 568 C~2nvs 2016 11 03.37410 00 32 02.893 +06 20 15.61 15RZ280 568 C~2nvs 2016 11 03.40304 00 32 02.787 +06 20 14.77 15RZ280 568 C~2nvs 2016 11 03.43201 00 32 02.668 +06 20 13.89 15RZ280 568 C~2nvs 2016 11 03.46810 00 32 02.526 +06 20 13.03 15RZ280 568 C~2nvs 2016 11 04.25899 00 31 59.690 +06 19 50.14 15RZ280 568 C~2nvs 2016 12 25.25214 00 30 31.214 +06 04 44.48 24.5w 15RZ280 568 C~2nvs 2017 01 02.29442 00 30 38.120 +06 04 30.15 15RZ280 568 C~2nvs 2017 01 29.24980 00 31 43.904 +06 08 24.19 24.2w 15RZ280 568 C~2nvs
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 0.19 0.00 -0.08
2 0.0714 205.15 0.04 41.27 -0.07
3 0.1395 -475.88 -0.14 68.54 0.15
4 0.1561 -756.78 ( 0.44) 71.07 ( -0.04)
5 0.1562 -759.37 -0.05 71.17 0.03
6 0.1563 -760.75 0.03 71.14 -0.02
7 0.1585 -800.90 0.06 71.21 -0.06
8 0.1586 -803.53 -0.02 71.31 0.01
9 0.2082 -1870.78 -0.02 65.38 0.01
10 0.2132 -1992.58 -0.01 63.51 0.04
11 0.2133 -1995.43 -0.02 63.45 0.00
12 0.2134 -1998.31 -0.10 63.47 0.04
13 0.2162 -2067.50 0.10 62.25 -0.06
14 0.2380 -2625.62 0.03 50.81 -0.11
15 0.2925 -4097.06 -0.19 1.11 0.06
16 0.2926 -4100.83 0.01 0.88 -0.03
17 0.2951 -4168.77 0.03 -2.18 0.00
18 0.3831 -6306.23 -0.03 -148.43 -0.02
19 0.3832 -6307.81 -0.08 -148.53 0.03
20 0.3963 -6556.70 0.07 -176.37 0.02
21 0.4592 -7363.88 0.13 -324.63 -0.03
22 0.5251 -7401.83 0.01 -494.46 0.07
23 1.2046 3253.87 -0.10 -972.49 0.02
24 1.2072 3192.58 0.15 -973.60 -0.07
25 1.2073 3189.57 -0.14 -973.46 0.10
26 1.2619 1788.59 0.13 -1008.59 -0.15
27 1.3658 -900.83 0.02 -1150.64 0.06
28 1.3659 -902.62 0.05 -1150.79 0.05
29 1.3659 -904.59 -0.12 -1150.90 0.07
30 1.3660 -906.88 -0.16 -1150.85 0.29
31 1.3682 -954.76 -0.01 -1155.21 -0.00
32 1.5078 -2524.69 -0.10 -1466.37 -0.09
33 1.5298 -2435.71 -0.01 -1520.24 -0.31
34 1.6036 -1441.76 0.28 -1692.66 0.05
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.
15RZ280 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 44.247 44.321 44.176 ecceobj 0.139 0.143 0.134 incobj 11.876 11.876 11.876 qmin 37.524 37.368 37.674 qmax 50.874 51.084 50.533 amean 44.007 44.084 43.941 amin 43.639 43.721 43.584 amax 44.414 44.480 44.342 emean 0.130 0.135 0.125 emin 0.115 0.120 0.110 emax 0.146 0.149 0.140 imean 12.777 12.798 12.810 imin 12.127 12.121 12.119 imax 13.404 13.438 13.432 excite_mean 0.257 0.259 0.255 fracstop 1.000 1.000 1.000 cjmean 3.022 3.021 3.022 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 178.5 178.2 178.7 kozaiamp 180.0 180.0 180.0