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: 15RS277
# Created Sun Dec 22 02:10:27 2024
# Orbit generated from Bernstein formalism
# Fitting 23 observations of 23
# Arc: 2.35y
# First observation: 2015/07/19
# Last observation: 2017/11/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000088 0.028264 -0.000005 -0.001870 0.027270 0.000000
# Chi-squared of fit: 5.94 DOF: 40 RMS: 0.09
# Min/Max residuals: -0.19 0.18
# Exact a, adot, b, bdot, g, gdot:
1.718260E-05 2.796693E-02 -1.101268E-06 -1.869020E-03 2.706034E-02 5.798634E-03
# Covariance matrix:
2.8868E-13 6.6086E-14 1.4662E-15 -1.7081E-14 2.6864E-13 5.3140E-12
6.6086E-14 6.6695E-13 1.4185E-14 -7.8239E-14 4.7455E-13 2.3905E-11
1.4662E-15 1.4185E-14 1.3117E-13 -1.0890E-13 9.7945E-15 7.7796E-13
-1.7081E-14 -7.8239E-14 -1.0890E-13 1.7929E-13 -6.3618E-14 -4.0252E-12
2.6864E-13 4.7455E-13 9.7945E-15 -6.3618E-14 5.6193E-13 1.9539E-11
5.3140E-12 2.3905E-11 7.7796E-13 -4.0252E-12 1.9539E-11 1.2271E-09
# lat0 lon0 xBary yBary zBary JD0
1.069459 9.572984 0.973521 0.005626 -0.296034 2457222.999319
# Heliocentric elements and errors
Epoch: 2457220.5000 = 2015/07/17
Mean Anomaly: 63.64753 +/- 0.084
Argument of Peri: 80.14762 +/- 0.029
Long of Asc Node: 203.72851 +/- 0.003
Inclination: 3.92597 +/- 0.001
Eccentricity: 0.18343631 +/- 0.0013
Semi-Major Axis: 39.27605789 +/- 0.0203
Time of Perihelion: 2441325.1785 +/- 17.0
Perihelion: 32.07140280 +/- 0.0524
Aphelion: 46.48071297 +/- 0.0552
Period (y) 246.1501 +/- 0.19
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.88377881 +/- 0.0010
Ecliptic Y 5.23418246 +/- 0.0002
Ecliptic Z 0.68974891 +/- 0.0000
Ecliptic XDOT 0.00010908 +/- 0.0000
Ecliptic YDOT 0.00288201 +/- 0.0000
Ecliptic ZDOT -0.00017806 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.25970422 +/- 0.0010
Geocenter to KBO 36.95444491 +/- 0.0010
# Hcoef: 9.08
The following table shows the complete astrometric record for 15RS277. 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 (15RS277) followed by the observatory code and reference code for the source of the astrometry.
2015 07 19.49853 00 33 29.781 +04 46 34.48 25.2r 15RS277 568 C~2lVN 2015 08 11.49021 00 32 48.793 +04 42 24.49 24.7r 15RS277 568 C~2lVN 2015 09 08.39679 00 31 05.151 +04 31 20.25 24.5r 15RS277 568 C~2lVN 2015 09 08.50096 00 31 04.663 +04 31 17.38 24.5r 15RS277 568 C~2lVN 2015 09 08.54456 00 31 04.467 +04 31 16.02 24.9r 15RS277 568 C~2lVN 2015 09 09.52009 00 31 00.053 +04 30 47.30 25.0w 15RS277 568 C~2lVN 2015 09 10.46103 00 30 55.772 +04 30 19.40 25.1w 15RS277 568 C~2lVN 2015 09 16.44783 00 30 27.764 +04 27 16.39 24.8w 15RS277 568 C~2lVN 2015 10 07.35040 00 28 44.828 +04 15 54.16 24.7r 15RS277 568 C~2lVN 2015 10 07.39951 00 28 44.582 +04 15 52.52 25.1r 15RS277 568 C~2lVN 2015 11 07.23924 00 26 26.358 +04 00 05.57 24.9w 15RS277 568 C~2lVN 2015 11 07.29177 00 26 26.154 +04 00 04.20 25.0w 15RS277 568 C~2lVN 2015 11 10.36966 00 26 14.968 +03 58 45.06 25.3w 15RS277 568 C~2lVN 2015 12 07.31568 00 25 09.392 +03 50 29.96 24.8w 15RS277 568 C~2lVN 2016 09 05.58308 00 37 23.104 +05 04 34.48 25.4w 15RS277 568 C~2lVN 2016 09 06.53219 00 37 18.984 +05 04 07.83 24.8w 15RS277 568 C~2lVN 2016 09 06.57428 00 37 18.783 +05 04 06.78 25.3w 15RS277 568 C~2lVN 2016 09 26.55688 00 35 44.744 +04 53 52.87 24.7w 15RS277 568 C~2lVN 2016 09 27.48878 00 35 40.156 +04 53 22.35 24.9w 15RS277 568 C~2lVN 2016 11 03.39726 00 32 46.940 +04 33 56.53 24.8w 15RS277 568 C~2lVN 2016 11 03.46220 00 32 46.689 +04 33 54.79 25.2w 15RS277 568 C~2lVN 2017 01 03.20730 00 31 14.137 +04 21 24.58 15RS277 568 C~2lVN 2017 11 22.37200 00 37 47.042 +04 58 15.37 24.6w 15RS277 568 C~2lVN
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 -0.17 0.00 0.00
2 0.0629 -661.66 0.01 11.44 -0.04
3 0.1394 -2347.71 0.18 11.67 -0.11
4 0.1396 -2355.55 0.10 11.91 0.11
5 0.1398 -2358.78 0.13 11.82 0.01
6 0.1424 -2430.77 -0.05 11.46 0.01
7 0.1450 -2500.61 -0.07 11.07 0.02
8 0.1614 -2957.75 -0.19 8.14 0.01
9 0.2186 -4642.19 -0.06 -10.77 -0.00
10 0.2188 -4646.22 -0.05 -10.82 -0.02
11 0.3032 -6921.90 0.02 -62.85 -0.00
12 0.3033 -6925.25 -0.02 -62.90 0.03
13 0.3118 -7110.50 0.10 -69.33 0.15
14 0.3855 -8209.20 0.01 -135.43 0.01
15 1.1337 3631.19 0.17 -377.06 -0.13
16 1.1363 3564.09 0.07 -377.43 -0.12
17 1.1364 3560.92 -0.07 -377.22 0.09
18 1.1911 2027.18 -0.08 -390.17 0.07
19 1.1937 1952.13 0.04 -391.30 -0.16
20 1.2947 -887.18 -0.10 -444.56 -0.02
21 1.2949 -891.31 0.14 -444.68 -0.04
22 1.4612 -2459.14 -0.06 -588.76 0.03
23 2.3460 3811.61 -0.06 -866.18 0.11
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.
15RS277 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.645 39.709 39.582 ecceobj 0.186 0.190 0.183 incobj 3.910 3.910 3.910 qmin 31.353 31.289 31.451 qmax 48.242 48.350 48.154 amean 39.457 39.457 39.457 amin 38.973 38.944 38.958 amax 40.015 40.047 40.025 emean 0.189 0.190 0.187 emin 0.170 0.173 0.170 emax 0.207 0.208 0.204 imean 4.786 4.893 4.803 imin 4.253 4.306 4.241 imax 5.360 5.394 5.399 excite_mean 0.206 0.209 0.205 fracstop 1.000 1.000 1.000 cjmean 3.003 3.002 3.004 libcent 0 180.7 179.9 180.1 libamp 0 103.8 110.8 104.6 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 166.7 190.3 167.7 kozaiamp 180.0 180.0 180.0