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: 15RV280
# Created Tue Apr 1 01:10:34 2025
# Orbit generated from Bernstein formalism
# Fitting 22 observations of 22
# Arc: 1.55y
# First observation: 2015/07/14
# Last observation: 2017/01/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000038 0.028896 0.000014 0.005292 0.027104 0.000000
# Chi-squared of fit: 16.55 DOF: 38 RMS: 0.15
# Min/Max residuals: -0.49 0.39
# Exact a, adot, b, bdot, g, gdot:
1.791525E-05 2.831591E-02 1.816452E-06 5.259441E-03 2.664610E-02 9.972170E-04
# Covariance matrix:
3.6086E-13 3.8597E-13 -3.1255E-14 1.7655E-13 6.3578E-13 2.2179E-11
3.8597E-13 1.3190E-12 -7.3427E-14 4.3249E-13 1.3901E-12 5.4402E-11
-3.1255E-14 -7.3427E-14 1.3323E-13 -1.4657E-13 -8.9387E-14 -4.0879E-12
1.7655E-13 4.3249E-13 -1.4657E-13 4.1451E-13 5.1631E-13 2.6216E-11
6.3578E-13 1.3901E-12 -8.9387E-14 5.1631E-13 1.7517E-12 6.4907E-11
2.2179E-11 5.4402E-11 -4.0879E-12 2.6216E-11 6.4907E-11 3.3057E-09
# lat0 lon0 xBary yBary zBary JD0
1.695285 9.245819 0.993415 0.006619 -0.220320 2457218.034449
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 3.36354 +/- 0.873
Argument of Peri: 4.80395 +/- 1.107
Long of Asc Node: 358.79605 +/- 0.001
Inclination: 10.71673 +/- 0.001
Eccentricity: 0.11458115 +/- 0.0002
Semi-Major Axis: 42.63287135 +/- 0.0046
Time of Perihelion: 2456260.5320 +/- 246.6
Perihelion: 37.74794811 +/- 0.0105
Aphelion: 47.51779460 +/- 0.0110
Period (y) 278.3717 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.39875112 +/- 0.0018
Ecliptic Y 5.08244157 +/- 0.0003
Ecliptic Z 1.11037835 +/- 0.0001
Ecliptic XDOT -0.00038443 +/- 0.0000
Ecliptic YDOT 0.00287922 +/- 0.0000
Ecliptic ZDOT 0.00054326 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.75884980 +/- 0.0018
Geocenter to KBO 37.52893840 +/- 0.0019
# Hcoef: 9.38
The following table shows the complete astrometric record for 15RV280. 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 (15RV280) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.53366 00 31 17.963 +05 13 21.46 25.1r 15RV280 568 C~2nvr 2015 07 19.49853 00 31 14.823 +05 13 31.38 25.2r 15RV280 568 C~2nvr 2015 08 11.49021 00 30 31.271 +05 11 08.92 25.5r 15RV280 568 C~2nvr 2015 08 11.55462 00 30 31.070 +05 11 07.92 25.0r 15RV280 568 C~2nvr 2015 08 19.58390 00 30 05.698 +05 09 09.11 25.8r 15RV280 568 C~2nvr 2015 09 07.56274 00 28 49.346 +05 02 34.81 25.4w 15RV280 568 C~2nvr 2015 09 09.39169 00 28 41.056 +05 01 49.59 25.1r 15RV280 568 C~2nvr 2015 09 09.43322 00 28 40.866 +05 01 48.62 25.2r 15RV280 568 C~2nvr 2015 09 09.47414 00 28 40.669 +05 01 47.69 24.9r 15RV280 568 C~2nvr 2015 09 10.46103 00 28 36.133 +05 01 22.95 24.8w 15RV280 568 C~2nvr 2015 09 18.49367 00 27 57.965 +04 57 51.82 25.2w 15RV280 568 C~2nvr 2015 10 03.37463 00 26 44.153 +04 50 50.52 24.9w 15RV280 568 C~2nvr 2015 10 08.34456 00 26 19.392 +04 48 26.35 25.2w 15RV280 568 C~2nvr 2015 10 08.39721 00 26 19.145 +04 48 24.75 25.3w 15RV280 568 C~2nvr 2016 09 05.48640 00 34 31.487 +05 59 00.24 15RV280 568 C~2nvr 2016 09 06.44060 00 34 27.285 +05 58 37.95 15RV280 568 C~2nvr 2016 09 26.43130 00 32 51.939 +05 49 54.19 25.4w 15RV280 568 C~2nvr 2016 09 26.44752 00 32 51.865 +05 49 54.08 25.3w 15RV280 568 C~2nvr 2016 11 03.39147 00 29 52.410 +05 32 15.20 15RV280 568 C~2nvr 2016 11 03.45641 00 29 52.145 +05 32 13.35 15RV280 568 C~2nvr 2016 12 25.23477 00 28 10.914 +05 21 25.07 25.8w 15RV280 568 C~2nvr 2017 01 29.24980 00 29 29.100 +05 29 30.08 25.2w 15RV280 568 C~2nvr
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 -0.23 0.00 0.27
2 0.0136 -39.19 -0.02 27.61 -0.14
3 0.0765 -693.23 0.13 153.29 0.16
4 0.0767 -696.39 -0.10 153.55 0.05
5 0.0987 -1091.55 0.39 193.95 -0.49
6 0.1507 -2295.38 -0.09 282.20 0.11
7 0.1557 -2427.05 -0.07 289.61 -0.06
8 0.1558 -2430.05 0.00 289.84 -0.03
9 0.1559 -2433.12 -0.04 290.15 0.09
10 0.1586 -2505.17 0.04 294.21 0.08
11 0.1806 -3112.63 0.05 325.76 0.13
12 0.2213 -4292.82 0.08 375.31 -0.06
13 0.2349 -4689.94 -0.16 389.46 -0.00
14 0.2351 -4693.97 0.07 389.45 -0.18
15 1.1470 3734.27 0.08 1380.67 0.11
16 1.1496 3667.84 0.14 1384.80 -0.01
17 1.2044 2153.55 -0.23 1462.74 -0.12
18 1.2044 2152.50 0.02 1463.08 0.15
19 1.3083 -726.76 -0.14 1545.86 0.19
20 1.3085 -731.12 -0.21 1545.72 -0.04
21 1.4502 -2376.02 0.12 1547.46 -0.14
22 1.5461 -1111.72 0.19 1531.59 -0.07
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.
15RV280 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.080 43.112 43.050 ecceobj 0.124 0.125 0.123 incobj 10.669 10.670 10.669 qmin 36.724 36.693 36.766 qmax 49.212 49.345 49.177 amean 42.831 42.861 42.802 amin 42.478 42.506 42.451 amax 43.213 43.248 43.184 emean 0.118 0.120 0.117 emin 0.099 0.102 0.099 emax 0.140 0.141 0.139 imean 10.275 10.265 10.258 imin 9.278 9.270 9.224 imax 11.481 11.482 11.479 excite_mean 0.214 0.215 0.213 fracstop 1.000 1.000 1.000 cjmean 3.033 3.033 3.033 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 176.0 175.9 177.0 kozaiamp 180.0 180.0 179.9