Orbit Fit and Astrometric record for 15RJ277

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: 15RJ277   
# Created Sun Nov 24 02:10:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     46 observations of     46
# Arc:   9.95y
# First observation: 2014/10/21
#  Last observation: 2024/10/01
# Chi-squared of fit:     7.60 DOF:     86 RMS:  0.07
# Min/Max residuals:    -0.18    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.734190E-05  2.685864E-02  2.054634E-06  2.488084E-03  2.564133E-02 -4.181047E-03
# Covariance matrix:
  2.0861E-13 -1.4158E-13  1.1052E-14 -1.1648E-14 -8.8696E-14 -4.2076E-13
 -1.4158E-13  1.2236E-13 -1.0103E-14  1.0440E-14  5.1518E-14  3.7652E-13
  1.1052E-14 -1.0103E-14  5.1646E-14 -1.1151E-14 -3.5510E-15 -3.2613E-14
 -1.1648E-14  1.0440E-14 -1.1151E-14  6.4080E-15  4.3531E-15  3.3650E-14
 -8.8696E-14  5.1518E-14 -3.5510E-15  4.3531E-15  1.1510E-13  1.5900E-13
 -4.2076E-13  3.7652E-13 -3.2613E-14  3.3650E-14  1.5900E-13  1.2134E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.701964    7.110090   -0.345718    0.027958   -0.935064  2456951.712178
# Heliocentric elements and errors
Epoch:              2456952.5000  =  2014/10/22
Mean Anomaly:          323.04777 +/-     0.008
Argument of Peri:       71.81222 +/-     0.013
Long of Asc Node:      350.17648 +/-     0.001
Inclination:             5.53250 +/-     0.000
Eccentricity:         0.20417839 +/-    0.0000
Semi-Major Axis:     46.63561040 +/-    0.0028
Time of Perihelion: 2468892.7399 +/-       9.8
Perihelion:          37.11362650 +/-    0.0030
Aphelion:            56.15759431 +/-    0.0039
Period (y)              318.4819 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.56543309 +/-    0.0005
Ecliptic Y            5.28582222 +/-    0.0001
Ecliptic Z            1.15834173 +/-    0.0000
Ecliptic XDOT        -0.00081007 +/-    0.0000
Ecliptic YDOT         0.00278479 +/-    0.0000
Ecliptic ZDOT         0.00025240 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.93385553 +/-    0.0005
Geocenter to KBO     38.99967046 +/-    0.0005
# Hcoef:  7.24

The following table shows the complete astrometric record for 15RJ277. 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 (15RJ277) followed by the observatory code and reference code for the source of the astrometry.

2014 10  21.211400 00 23 25.00   +04 23 07.1   23.5g 15RJ277   W84  C~39pK      
2014 10  28.172188 00 22 55.98   +04 20 02.2   23.2r 15RJ277   W84  C~39pK      
2014 10  29.174618 00 22 52.00   +04 19 36.6   23.6g 15RJ277   W84  C~39pK      
2014 10  29.180174 00 22 51.96   +04 19 36.3   22.5i 15RJ277   W84  C~39pK      
2014 11  13.046019 00 21 59.27   +04 13 52.7   23.4r 15RJ277   W84  C~39pK      
2015 06  23.51987  00 34 14.805  +05 35 44.00  23.5r 15RJ277   568  C~2jiA      
2015 07  14.61234  00 34 29.088  +05 38 47.94  23.3r 15RJ277   568  C~2jiA      
2015 08  13.47990  00 33 42.424  +05 35 54.35  23.2r 15RJ277   568  C~2jiA      
2015 08  13.50863  00 33 42.340  +05 35 53.91  23.2r 15RJ277   568  C~2jiA      
2015 08  13.53336  00 33 42.275  +05 35 53.63        15RJ277   568  C~2jiA      
2015 08  19.54254  00 33 24.385  +05 34 21.82  23.4r 15RJ277   568  C~2jiA      
2015 08  19.58390  00 33 24.249  +05 34 20.89  23.2r 15RJ277   568  C~2jiA      
2015 08  19.61259  00 33 24.144  +05 34 20.36  23.3r 15RJ277   568  C~2jiA      
2015 08  20.41707  00 33 21.586  +05 34 06.79  23.3r 15RJ277   568  C~2jiA      
2015 08  20.46648  00 33 21.421  +05 34 05.89  23.3r 15RJ277   568  C~2jiA      
2015 09  07.56274  00 32 13.369  +05 27 48.76  23.5w 15RJ277   568  C~2jiA      
2015 09  09.39169  00 32 05.612  +05 27 04.14  23.1r 15RJ277   568  C~2jiA      
2015 09  09.43322  00 32 05.445  +05 27 03.15  23.2r 15RJ277   568  C~2jiA      
2015 09  09.47414  00 32 05.262  +05 27 02.09  23.2r 15RJ277   568  C~2jiA      
2015 09  10.49775  00 32 00.859  +05 26 36.73  23.3w 15RJ277   568  C~2jiA      
2015 09  18.45683  00 31 25.435  +05 23 09.54  23.1w 15RJ277   568  C~2jiA      
2015 09  18.49368  00 31 25.275  +05 23 08.58  23.2w 15RJ277   568  C~2jiA      
2015 10  08.34456  00 29 52.439  +05 13 47.39  23.4w 15RJ277   568  C~2jiA      
2015 10  08.39722  00 29 52.190  +05 13 45.92  23.3w 15RJ277   568  C~2jiA      
2015 10  09.31422  00 29 47.907  +05 13 19.44  23.3w 15RJ277   568  C~2jiA      
2015 11  10.43997  00 27 34.041  +04 59 08.13  23.1w 15RJ277   568  C~2jiA      
2015 12  08.23879  00 26 29.357  +04 51 43.04  23.5w 15RJ277   568  C~2jiA      
2016 09  05.47427  00 37 50.531  +06 12 50.50        15RJ277   568  C~2jiA      
2016 09  06.42847  00 37 46.598  +06 12 28.32        15RJ277   568  C~2jiA      
2016 09  06.46893  00 37 46.421  +06 12 27.37        15RJ277   568  C~2jiA      
2016 09  26.43536  00 36 16.888  +06 03 46.36  23.3w 15RJ277   568  C~2jiA      
2016 09  26.44752  00 36 16.834  +06 03 45.92  23.4w 15RJ277   568  C~2jiA      
2016 10  26.40787  00 33 58.714  +05 49 34.27  23.3r 15RJ277   568  C~2jiA      
2016 10  26.47363  00 33 58.431  +05 49 32.54  23.3r 15RJ277   568  C~2jiA      
2016 11  03.39147  00 33 26.251  +05 46 05.90        15RJ277   568  C~2jiA      
2016 11  03.40304  00 33 26.206  +05 46 05.62        15RJ277   568  C~2jiA      
2016 11  03.45641  00 33 25.988  +05 46 04.27        15RJ277   568  C~2jiA      
2016 11  03.46810  00 33 25.950  +05 46 03.97        15RJ277   568  C~2jiA      
2016 12  25.25214  00 31 46.885  +05 34 21.55        15RJ277   568  C~2jiA      
2016 12  29.24332  00 31 49.307  +05 34 29.54  23.5w 15RJ277   568  C~2jiA      
2017 01  02.29442  00 31 53.355  +05 34 47.71  23.6w 15RJ277   568  C~2jiA      
2017 01  03.21350  00 31 54.514  +05 34 53.33  23.7w 15RJ277   568  C~2jiA      
2017 01  30.22844  00 33 03.076  +05 41 26.01  23.7w 15RJ277   568  C~2jiA      
2024 10  01.349940 01 22 28.949  +12 00 41.30  23.2G 15RJ277   G37  C~8HAJ      
2024 10  01.393440 01 22 28.735  +12 00 39.90        15RJ277   G37  C~8HAJ      
2024 10  01.437060 01 22 28.514  +12 00 39.01        15RJ277   G37  C~8HAJ      

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    -0.11       0.00    -0.16
     2   0.0191      0.00    -0.07       0.00     0.05
     3   0.0218      0.00     0.25       0.00     0.15
     4   0.0218      0.00    -0.01       0.00    -0.01
     5   0.0625      0.00    -0.07       0.00    -0.05
     6   0.6716      0.00     0.14       0.00    -0.02
     7   0.7294      0.00     0.08       0.00    -0.07
     8   0.8111      0.00    -0.00       0.00     0.04
     9   0.8112      0.00    -0.04       0.00    -0.00
    10   0.8113      0.00     0.05       0.00     0.06
    11   0.8277      0.00     0.06       0.00     0.23
    12   0.8279      0.00     0.05       0.00    -0.01
    13   0.8279      0.00    -0.12       0.00    -0.05
    14   0.8301      0.00     0.04       0.00     0.01
    15   0.8303      0.00     0.02       0.00    -0.05
    16   0.8798      0.00    -0.05       0.00    -0.04
    17   0.8848      0.00    -0.18       0.00    -0.03
    18   0.8849      0.00     0.03       0.00     0.00
    19   0.8850      0.00    -0.03       0.00    -0.05
    20   0.8878      0.00     0.02       0.00     0.03
    21   0.9096      0.00    -0.11       0.00     0.01
    22   0.9097      0.00     0.06       0.00     0.05
    23   0.9641      0.00     0.02       0.00    -0.02
    24   0.9642      0.00     0.06       0.00     0.02
    25   0.9667      0.00     0.05       0.00     0.02
    26   1.0547      0.00    -0.02       0.00     0.02
    27   1.1308      0.00     0.07       0.00     0.03
    28   1.8761      0.00    -0.00       0.00    -0.02
    29   1.8788      0.00     0.07       0.00    -0.01
    30   1.8789      0.00    -0.01       0.00    -0.01
    31   1.9335      0.00    -0.05       0.00     0.07
    32   1.9336      0.00     0.01       0.00    -0.03
    33   2.0156      0.00     0.01       0.00     0.01
    34   2.0158      0.00     0.03       0.00     0.06
    35   2.0375      0.00    -0.01       0.00    -0.04
    36   2.0375      0.00     0.00       0.00    -0.03
    37   2.0376      0.00    -0.12       0.00    -0.04
    38   2.0377      0.00     0.00       0.00    -0.04
    39   2.1794      0.00     0.06       0.00    -0.07
    40   2.1904      0.00     0.03       0.00     0.01
    41   2.2015      0.00    -0.02       0.00    -0.04
    42   2.2040      0.00     0.13       0.00     0.01
    43   2.2779      0.00    -0.01       0.00     0.11
    44   9.9470      0.00     0.05       0.00     0.11
    45   9.9471      0.00     0.03       0.00    -0.17
    46   9.9472      0.00    -0.10       0.00     0.06

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.

15RJ277    quality flag:2

Type:       SCATNEAR CLASSICAL  SCATNEAR

axisobj        47.086    47.105    47.067
ecceobj         0.209     0.210     0.207
incobj          5.509     5.509     5.509
qmin           36.268    36.296    36.334
qmax           57.643    57.739    57.516
amean          46.707    46.729    46.690
amin           46.290    46.308    46.262
amax           47.240    47.242    47.218
emean           0.204     0.205     0.203
emin            0.187     0.190     0.187
emax            0.221     0.223     0.220
imean           5.882     5.899     5.892
imin            4.939     4.985     4.976
imax            6.881     6.873     6.879
excite_mean     0.228     0.229     0.227
fracstop        1.000     1.000     1.000
cjmean          3.070     3.069     3.070

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       180.7     181.8     181.5
kozaiamp        180.0     180.0     180.0