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: 15RR278
# Created Sun Dec 22 02:10:28 2024
# Orbit generated from Bernstein formalism
# Fitting 34 observations of 34
# Arc: 2.36y
# First observation: 2015/07/14
# Last observation: 2017/11/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000120 0.031130 0.000008 -0.000523 0.029157 0.000000
# Chi-squared of fit: 16.82 DOF: 62 RMS: 0.12
# Min/Max residuals: -0.32 0.27
# Exact a, adot, b, bdot, g, gdot:
1.711773E-05 3.070171E-02 -1.589637E-06 -5.152736E-04 2.897388E-02 3.994686E-03
# Covariance matrix:
1.6440E-13 -3.3055E-14 -2.5175E-15 -4.6031E-16 1.0985E-13 5.7057E-13
-3.3055E-14 4.4092E-13 -3.9688E-15 -2.4337E-15 2.5611E-13 9.3391E-12
-2.5175E-15 -3.9688E-15 1.0076E-13 -7.4314E-14 -5.6893E-15 -8.8072E-14
-4.6031E-16 -2.4337E-15 -7.4314E-14 9.4197E-14 -2.0275E-15 -6.3979E-14
1.0985E-13 2.5611E-13 -5.6893E-15 -2.0275E-15 2.9618E-13 6.1677E-12
5.7057E-13 9.3391E-12 -8.8072E-14 -6.3979E-14 6.1677E-12 2.5653E-10
# lat0 lon0 xBary yBary zBary JD0
2.531660 12.046352 1.002909 0.007704 -0.171945 2457218.063999
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 84.45192 +/- 0.070
Argument of Peri: 13.39541 +/- 0.052
Long of Asc Node: 261.09019 +/- 0.012
Inclination: 2.66804 +/- 0.000
Eccentricity: 0.09938125 +/- 0.0005
Semi-Major Axis: 34.68583928 +/- 0.0044
Time of Perihelion: 2439706.6426 +/- 14.2
Perihelion: 31.23871718 +/- 0.0181
Aphelion: 38.13296138 +/- 0.0183
Period (y) 204.2850 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.09492438 +/- 0.0006
Ecliptic Y 6.25150149 +/- 0.0001
Ecliptic Z 1.52452270 +/- 0.0000
Ecliptic XDOT -0.00023685 +/- 0.0000
Ecliptic YDOT 0.00291010 +/- 0.0000
Ecliptic ZDOT -0.00003191 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 34.69681986 +/- 0.0006
Geocenter to KBO 34.51384038 +/- 0.0006
# Hcoef: 9.67
The following table shows the complete astrometric record for 15RR278. 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 (15RR278) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.56321 00 40 19.762 +07 05 31.16 25.1r 15RR278 568 C~2lVR 2015 07 19.54121 00 40 18.048 +07 05 41.85 25.3r 15RR278 568 C~2lVR 2015 08 19.55891 00 39 12.461 +07 00 48.24 25.2r 15RR278 568 C~2lVR 2015 08 20.43431 00 39 09.368 +07 00 30.85 24.9r 15RR278 568 C~2lVR 2015 08 20.48358 00 39 09.196 +07 00 30.09 25.3r 15RR278 568 C~2lVR 2015 09 07.58083 00 37 53.412 +06 53 15.48 25.3w 15RR278 568 C~2lVR 2015 09 09.40852 00 37 44.703 +06 52 23.37 25.4r 15RR278 568 C~2lVR 2015 09 09.44963 00 37 44.502 +06 52 22.22 24.9r 15RR278 568 C~2lVR 2015 09 09.49055 00 37 44.299 +06 52 21.08 25.1r 15RR278 568 C~2lVR 2015 09 10.51481 00 37 39.335 +06 51 51.27 25.3w 15RR278 568 C~2lVR 2015 09 18.47788 00 36 59.288 +06 47 47.61 24.1w 15RR278 568 C~2lVR 2015 10 08.36567 00 35 13.381 +06 36 35.76 24.7w 15RR278 568 C~2lVR 2015 10 08.41827 00 35 13.089 +06 36 33.91 25.3w 15RR278 568 C~2lVR 2015 10 09.33525 00 35 08.179 +06 36 01.64 25.3w 15RR278 568 C~2lVR 2015 12 08.25463 00 31 17.821 +06 08 19.62 25.3w 15RR278 568 C~2lVR 2016 01 01.31705 00 31 15.897 +06 06 03.59 25.5w 15RR278 568 C~2lVR 2016 01 02.26815 00 31 17.157 +06 06 06.77 26.0w 15RR278 568 C~2lVR 2016 09 05.48236 00 44 40.538 +07 34 12.62 25.5w 15RR278 568 C~2lVR 2016 09 05.50664 00 44 40.428 +07 34 11.95 25.6w 15RR278 568 C~2lVR 2016 09 05.57499 00 44 40.106 +07 34 09.95 25.2w 15RR278 568 C~2lVR 2016 09 06.43656 00 44 36.175 +07 33 46.99 26.0w 15RR278 568 C~2lVR 2016 09 06.46082 00 44 36.050 +07 33 46.17 25.2w 15RR278 568 C~2lVR 2016 09 06.47701 00 44 35.970 +07 33 45.75 25.6w 15RR278 568 C~2lVR 2016 09 06.50211 00 44 35.847 +07 33 45.14 25.2w 15RR278 568 C~2lVR 2016 09 06.52410 00 44 35.755 +07 33 44.65 25.3w 15RR278 568 C~2lVR 2016 09 06.56619 00 44 35.558 +07 33 43.40 25.0w 15RR278 568 C~2lVR 2016 09 26.43941 00 42 55.524 +07 23 36.24 25.2w 15RR278 568 C~2lVR 2016 09 27.47990 00 42 49.965 +07 23 01.64 25.4w 15RR278 568 C~2lVR 2016 11 04.28877 00 39 36.437 +07 01 44.05 15RR278 568 C~2lVR 2016 11 04.34801 00 39 36.172 +07 01 42.13 15RR278 568 C~2lVR 2016 12 29.27436 00 37 44.070 +06 45 47.33 25.3w 15RR278 568 C~2lVR 2017 09 16.52330 00 50 28.594 +08 08 51.35 24.8w 15RR278 568 C~2lVR 2017 09 22.47675 00 49 58.231 +08 05 47.72 25.5w 15RR278 568 C~2lVR 2017 11 22.34591 00 45 05.673 +07 33 25.59 24.6w 15RR278 568 C~2lVR
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 0.27
2 0.0136 -19.28 0.19 19.84 -0.26
3 0.0986 -1032.56 0.16 132.79 0.25
4 0.1009 -1081.74 -0.26 134.87 -0.20
5 0.1011 -1084.40 -0.07 135.18 -0.07
6 0.1506 -2292.91 0.01 178.88 0.02
7 0.1556 -2432.66 -0.05 181.97 -0.01
8 0.1557 -2435.87 -0.03 182.09 0.02
9 0.1559 -2439.09 -0.03 182.23 0.06
10 0.1587 -2518.80 -0.05 183.90 0.03
11 0.1805 -3163.12 -0.32 194.59 0.22
12 0.2349 -4878.62 0.16 198.83 0.06
13 0.2351 -4883.35 0.09 198.85 0.07
14 0.2376 -4963.35 -0.09 198.06 -0.10
15 0.4016 -8779.03 0.05 29.04 -0.14
16 0.4675 -8859.42 -0.08 -84.59 -0.17
17 0.4701 -8840.87 0.25 -89.12 -0.09
18 1.1469 4244.48 -0.02 67.87 0.02
19 1.1470 4242.71 0.02 67.89 -0.02
20 1.1472 4237.52 -0.08 67.91 -0.16
21 1.1496 4174.72 0.19 69.56 -0.03
22 1.1496 4172.68 -0.02 69.53 -0.12
23 1.1497 4171.42 -0.06 69.60 -0.08
24 1.1497 4169.50 -0.09 69.75 0.01
25 1.1498 4168.05 0.11 69.84 0.04
26 1.1499 4164.86 0.10 69.83 -0.07
27 1.2043 2557.70 0.12 91.44 0.12
28 1.2072 2468.05 0.10 91.90 0.26
29 1.3107 -682.35 0.03 44.03 0.06
30 1.3108 -686.73 0.03 43.81 -0.04
31 1.4612 -2597.11 -0.14 -178.47 -0.01
32 2.1765 9824.44 0.04 -24.28 0.07
33 2.1928 9336.58 0.01 -19.23 -0.04
34 2.3594 4570.50 -0.20 -121.13 0.03
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.
15RR278 quality flag:3 Type: 5:4E 5:4E 5:4E axisobj 34.979 34.995 34.963 ecceobj 0.101 0.102 0.100 incobj 2.669 2.669 2.669 qmin 30.462 30.445 30.515 qmax 39.848 39.698 39.808 amean 34.943 34.943 34.943 amin 34.600 34.610 34.580 amax 35.321 35.286 35.334 emean 0.107 0.108 0.107 emin 0.087 0.088 0.087 emax 0.129 0.126 0.127 imean 4.162 4.153 4.226 imin 2.414 2.296 2.473 imax 5.556 5.717 5.405 excite_mean 0.130 0.131 0.131 fracstop 1.000 1.000 1.000 cjmean 2.998 2.998 2.998 libcent 0 180.8 179.7 180.2 libamp 0 74.7 67.0 83.8 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 182.0 182.2 177.8 kozaiamp 180.0 180.0 180.0