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: 15RL277
# Created Sun Dec 22 02:10:27 2024
# Orbit generated from Bernstein formalism
# Fitting 17 observations of 17
# Arc: 1.26y
# First observation: 2015/06/23
# Last observation: 2016/09/27
Preliminary a, adot, b, bdot, g, gdot:
0.003451 0.416103 0.001511 0.006759 0.149044 0.000000
# Chi-squared of fit: 8.15 DOF: 28 RMS: 0.12
# Min/Max residuals: -0.22 0.30
# Exact a, adot, b, bdot, g, gdot:
4.550271E-05 4.506749E-01 8.442469E-07 9.052467E-03 1.577641E-01 2.871985E-01
# Covariance matrix:
9.0846E-13 -1.1306E-11 1.5586E-13 -3.8097E-13 -2.6809E-12 -2.4394E-11
-1.1306E-11 1.8069E-10 -2.6163E-12 6.1290E-12 4.5554E-11 3.9541E-10
1.5586E-13 -2.6163E-12 1.8980E-13 -2.9539E-13 -6.7101E-13 -5.7418E-12
-3.8097E-13 6.1290E-12 -2.9539E-13 7.9175E-13 1.5445E-12 1.3457E-11
-2.6809E-12 4.5554E-11 -6.7101E-13 1.5445E-12 1.1741E-11 9.9964E-11
-2.4394E-11 3.9541E-10 -5.7418E-12 1.3457E-11 9.9964E-11 8.6811E-10
# lat0 lon0 xBary yBary zBary JD0
2.714255 10.661897 1.004218 -0.007310 0.156247 2457197.106478
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 2.48737 +/- 0.001
Argument of Peri: 10.93426 +/- 0.003
Long of Asc Node: 299.48333 +/- 0.002
Inclination: 3.11432 +/- 0.000
Eccentricity: 0.84851766 +/- 0.0001
Semi-Major Axis: 34.28149627 +/- 0.0124
Time of Perihelion: 2456683.9467 +/- 0.0
Perihelion: 5.19304118 +/- 0.0028
Aphelion: 63.36995136 +/- 0.0231
Period (y) 200.7233 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 6.25076968 +/- 0.0001
Ecliptic Y 0.15571400 +/- 0.0000
Ecliptic Z 0.30022302 +/- 0.0000
Ecliptic XDOT 0.00343575 +/- 0.0000
Ecliptic YDOT 0.00859949 +/- 0.0000
Ecliptic ZDOT 0.00039301 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 6.25991232 +/- 0.0001
Geocenter to KBO 6.33857567 +/- 0.0001
# Hcoef: 16.21
The following table shows the complete astrometric record for 15RL277. 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 (15RL277) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.60570 00 34 54.953 +06 42 59.82 24.5r 15RL277 568 C~2jiA 2015 07 19.53712 00 40 48.452 +07 35 39.17 24.9r 15RL277 568 C~2jiA 2015 08 13.50040 00 40 41.089 +07 49 25.25 24.6r 15RL277 568 C~2jiA 2015 08 19.56300 00 39 49.119 +07 47 09.10 25.2r 15RL277 568 C~2jiA 2015 08 20.43842 00 39 40.214 +07 46 38.83 24.3r 15RL277 568 C~2jiA 2015 08 20.48764 00 39 39.645 +07 46 36.99 24.6r 15RL277 568 C~2jiA 2015 09 09.40442 00 34 49.043 +07 24 22.14 24.5r 15RL277 568 C~2jiA 2015 09 09.44553 00 34 48.286 +07 24 18.35 24.6r 15RL277 568 C~2jiA 2015 09 09.48644 00 34 47.507 +07 24 14.40 24.9r 15RL277 568 C~2jiA 2015 09 10.51074 00 34 28.813 +07 22 35.69 24.9w 15RL277 568 C~2jiA 2015 09 18.47260 00 31 55.406 +07 08 31.54 24.6w 15RL277 568 C~2jiA 2015 11 10.41159 00 16 27.158 +05 25 18.79 23.7w 15RL277 568 C~2jiA 2015 12 08.22307 00 15 26.656 +05 07 50.00 25.4w 15RL277 568 C~2jiA 2016 01 01.29622 00 19 58.562 +05 26 55.91 25.8w 15RL277 568 C~2jiA 2016 09 05.56240 02 00 40.432 +15 54 33.43 25.9w 15RL277 568 C~2jiA 2016 09 06.55374 02 00 30.858 +15 54 03.33 25.5w 15RL277 568 C~2jiA 2016 09 27.46659 01 55 45.224 +15 34 37.80 22.8w 15RL277 568 C~2jiA
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 -0.07 0.00 0.01
2 0.0710 6080.47 0.18 843.26 0.00
3 0.1393 6302.73 -0.15 1646.86 -0.09
4 0.1559 5538.00 0.14 1823.44 0.09
5 0.1583 5404.26 0.23 1847.35 -0.00
6 0.1585 5395.75 -0.18 1848.96 0.07
7 0.2130 896.30 -0.05 2316.66 0.06
8 0.2131 884.45 0.12 2317.61 0.09
9 0.2132 872.25 -0.10 2318.54 0.10
10 0.2160 577.74 -0.14 2337.29 0.02
11 0.2378 -1853.03 0.04 2462.03 -0.22
12 0.3828 -17053.63 -0.02 2299.46 -0.09
13 0.4589 -18311.39 0.03 1700.08 -0.12
14 0.5248 -14105.16 -0.03 1119.16 0.03
15 1.2045 87132.56 -0.12 3505.19 0.16
16 1.2072 86967.18 -0.18 3522.36 -0.15
17 1.2645 81971.53 0.30 3772.13 0.04
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.
15RL277 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 34.670 34.715 34.624 ecceobj 0.851 0.851 0.851 incobj 3.111 3.111 3.111 qmin 5.171 5.132 5.169 qmax 64.169 94.029 65.403 amean 34.670 36.262 34.992 amin 34.670 22.296 34.624 amax 34.670 49.760 35.360 emean 0.851 0.846 0.850 emin 0.851 0.767 0.850 emax 0.851 0.892 0.851 imean 4.667 5.414 4.673 imin 4.667 4.632 4.667 imax 4.667 6.652 4.678 excite_mean 0.855 0.851 0.854 fracstop 0.000 0.002 0.000 cjmean 1.992 2.016 1.991 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 11.0 85.2 11.7 kozaiamp 0.0 84.5 0.7