Orbit Fit and Astrometric record for 15RN280

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: 15RN280   
# Created Tue Nov 30 02:13:34 2021
# Orbit generated from Bernstein formalism
# Fitting     37 observations of     37
# Arc:   2.25y
# First observation: 2015/06/23
#  Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000087   0.017750   0.000005  -0.006268   0.021707   0.000000
# Chi-squared of fit:    10.59 DOF:     68 RMS:  0.09
# Min/Max residuals:    -0.41    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.309576E-05  1.738430E-02 -4.219655E-06 -6.167318E-03  2.142517E-02  5.386144E-04
# Covariance matrix:
  1.3684E-13  9.1039E-15  1.2472E-15 -2.6689E-14  1.2361E-13  2.4393E-12
  9.1039E-15  2.4729E-13  1.2696E-14 -8.9659E-14  2.0741E-13  8.1164E-12
  1.2472E-15  1.2696E-14  8.0390E-14 -7.0936E-14  1.2036E-14  8.8399E-13
 -2.6689E-14 -8.9659E-14 -7.0936E-14  1.5266E-13 -1.0485E-13 -5.3897E-12
  1.2361E-13  2.0741E-13  1.2036E-14 -1.0485E-13  3.1123E-13  9.5172E-12
  2.4393E-12  8.1164E-12  8.8399E-13 -5.3897E-12  9.5172E-12  4.8679E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.995073    7.970124    1.010408   -0.005629    0.109402  2457197.079268
# Heliocentric elements and errors
Epoch:              2457190.5000  =  2015/06/17
Mean Anomaly:          176.30293 +/-     0.459
Argument of Peri:      353.93060 +/-     0.462
Long of Asc Node:      195.13623 +/-     0.000
Inclination:            19.72335 +/-     0.001
Eccentricity:         0.12922109 +/-    0.0000
Semi-Major Axis:     41.25038560 +/-    0.0023
Time of Perihelion: 2506569.2597 +/-     123.3
Perihelion:          35.91996569 +/-    0.0028
Aphelion:            46.58080552 +/-    0.0032
Period (y)              264.9416 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           46.18820411 +/-    0.0012
Ecliptic Y            5.44744932 +/-    0.0002
Ecliptic Z            2.43858378 +/-    0.0001
Ecliptic XDOT        -0.00020164 +/-    0.0000
Ecliptic YDOT         0.00220903 +/-    0.0000
Ecliptic ZDOT        -0.00078336 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.57221912 +/-    0.0012
Geocenter to KBO     46.67406520 +/-    0.0012
# Hcoef:  7.60

The following table shows the complete astrometric record for 15RN280. 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 (15RN280) followed by the observatory code and reference code for the source of the astrometry.

2015 06  23.57849  00 24 31.768  +05 54 46.68  24.7r 15RN280   568  C~2nvq      
2015 06  23.58498  00 24 31.771  +05 54 46.71  24.4r 15RN280   568  C~2nvq      
2015 07  14.57552  00 24 38.219  +05 55 37.41  24.5r 15RN280   568  C~2nvq      
2015 07  19.55444  00 24 34.772  +05 55 16.72  24.2r 15RN280   568  C~2nvq      
2015 08  13.46762  00 23 50.960  +05 50 31.08  21.5r 15RN280   568  C~2nvq      
2015 08  13.52103  00 23 50.817  +05 50 30.03  24.1r 15RN280   568  C~2nvq      
2015 08  19.57132  00 23 34.162  +05 48 37.57  24.2r 15RN280   568  C~2nvq      
2015 08  19.60028  00 23 34.054  +05 48 36.97  24.5r 15RN280   568  C~2nvq      
2015 08  20.40327  00 23 31.729  +05 48 21.19  24.3r 15RN280   568  C~2nvq      
2015 08  20.45053  00 23 31.597  +05 48 20.09  24.3r 15RN280   568  C~2nvq      
2015 09  07.55043  00 22 30.509  +05 41 17.50  24.4w 15RN280   568  C~2nvq      
2015 09  09.37654  00 22 23.666  +05 40 29.12  24.4r 15RN280   568  C~2nvq      
2015 09  09.42093  00 22 23.504  +05 40 27.99  24.6r 15RN280   568  C~2nvq      
2015 09  09.46188  00 22 23.350  +05 40 26.86  24.8r 15RN280   568  C~2nvq      
2015 09  10.48550  00 22 19.455  +05 39 59.41  24.5w 15RN280   568  C~2nvq      
2015 09  18.44074  00 21 48.421  +05 36 17.70  24.5w 15RN280   568  C~2nvq      
2015 09  18.48843  00 21 48.221  +05 36 16.34  24.8w 15RN280   568  C~2nvq      
2015 10  08.32880  00 20 28.030  +05 26 24.28  24.6w 15RN280   568  C~2nvq      
2015 10  08.38143  00 20 27.817  +05 26 22.61  24.4w 15RN280   568  C~2nvq      
2015 10  09.29850  00 20 24.148  +05 25 54.74  24.5w 15RN280   568  C~2nvq      
2015 11  10.41160  00 18 31.395  +05 10 42.77  24.8w 15RN280   568  C~2nvq      
2015 11  15.27884  00 18 18.505  +05 08 45.94  24.8w 15RN280   568  C~2nvq      
2015 12  08.22307  00 17 39.397  +05 01 42.33  24.7w 15RN280   568  C~2nvq      
2016 01  01.28580  00 17 42.755  +04 58 53.77  24.9w 15RN280   568  C~2nvq      
2016 09  05.49854  00 26 54.732  +05 46 05.10  24.4w 15RN280   568  C~2nvq      
2016 09  05.51877  00 26 54.654  +05 46 04.65  24.6w 15RN280   568  C~2nvq      
2016 09  06.49401  00 26 51.082  +05 45 39.33  25.1w 15RN280   568  C~2nvq      
2016 09  07.45899  00 26 47.519  +05 45 14.12  24.4w 15RN280   568  C~2nvq      
2016 09  07.50445  00 26 47.348  +05 45 13.04  24.6w 15RN280   568  C~2nvq      
2016 09  26.53383  00 25 32.577  +05 36 14.83  24.7w 15RN280   568  C~2nvq      
2016 10  30.34461  00 23 21.993  +05 19 33.35  24.6w 15RN280   568  C~2nvq      
2016 11  03.29848  00 23 08.950  +05 17 45.99  24.1w 15RN280   568  C~2nvq      
2016 12  24.26796  00 21 51.029  +05 03 28.69  23.6w 15RN280   568  C~2nvq      
2017 01  02.25760  00 21 58.284  +05 03 08.96  23.9w 15RN280   568  C~2nvq      
2017 01  26.23696  00 22 49.184  +05 05 45.40  24.7w 15RN280   568  C~2nvq      
2017 09  15.44018  00 30 37.663  +05 45 51.52  24.5w 15RN280   568  C~2nvq      
2017 09  22.50534  00 30 09.648  +05 42 29.78  24.4w 15RN280   568  C~2nvq      

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    -0.05       0.00    -0.07
     2   0.0000      0.05    -0.12       0.01    -0.06
     3   0.0575    108.47     0.10       8.47    -0.01
     4   0.0711     53.05     0.15       9.83    -0.03
     5   0.1393   -660.34     0.22       6.55     0.20
     6   0.1395   -662.72     0.14       6.43     0.09
     7   0.1560   -935.48    -0.11       1.70    -0.10
     8   0.1561   -937.19    -0.41       1.79     0.01
     9   0.1583   -975.30    -0.01       1.05     0.10
    10   0.1584   -977.55     0.08       0.83    -0.10
    11   0.2080  -1982.15    -0.01     -25.46     0.02
    12   0.2130  -2095.11    -0.11     -29.33    -0.01
    13   0.2131  -2097.78     0.03     -29.41    -0.01
    14   0.2132  -2100.34     0.07     -29.53    -0.07
    15   0.2160  -2164.60    -0.03     -31.65     0.01
    16   0.2378  -2677.88     0.18     -51.21    -0.04
    17   0.2379  -2681.16     0.10     -51.27     0.01
    18   0.2923  -4015.49     0.00    -118.79     0.10
    19   0.2924  -4019.07    -0.00    -119.06     0.02
    20   0.2949  -4080.45    -0.06    -122.85     0.05
    21   0.3828  -5989.49    -0.04    -289.25     0.02
    22   0.3962  -6212.85     0.07    -319.70    -0.04
    23   0.4590  -6918.30    -0.07    -475.44    -0.05
    24   0.5249  -6939.51    -0.01    -650.13     0.03
    25   1.2044   1753.09    -0.02   -1322.94    -0.03
    26   1.2045   1751.84    -0.03   -1322.89     0.05
    27   1.2072   1692.86    -0.08   -1325.09    -0.04
    28   1.2098   1634.05    -0.07   -1327.24    -0.05
    29   1.2099   1631.28    -0.01   -1327.22     0.05
    30   1.2620    393.30    -0.04   -1380.29    -0.05
    31   1.3546  -1793.85     0.09   -1527.63    -0.04
    32   1.3654  -2015.29    -0.14   -1548.95     0.03
    33   1.5050  -3424.27    -0.08   -1874.06    -0.12
    34   1.5296  -3332.59    -0.03   -1935.22     0.05
    35   1.5952  -2572.27     0.24   -2093.42    -0.03
    36   2.2310   4806.29     0.10   -2647.87    -0.05
    37   2.2503   4342.25    -0.03   -2668.66     0.13

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.

15RN280    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.576    41.583    41.568
ecceobj         0.120     0.120     0.120
incobj         19.616    19.617    19.616
qmin           34.950    34.972    35.112
qmax           48.130    48.156    48.024
amean          41.396    41.414    41.402
amin           41.046    41.071    41.066
amax           41.784    41.788    41.784
emean           0.134     0.134     0.131
emin            0.116     0.117     0.112
emax            0.152     0.153     0.151
imean          19.940    19.933    20.013
imin           19.235    19.209    19.284
imax           20.715    20.729    20.744
excite_mean     0.366     0.367     0.367
fracstop        1.000     1.000     1.000
cjmean          2.912     2.913     2.912

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       178.1     178.3     179.5
kozaiamp        180.0     180.0     179.9