Orbit Fit and Astrometric record for 15RC279

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: 15RC279   
# Created Fri Dec  3 02:13:29 2021
# Orbit generated from Bernstein formalism
# Fitting     39 observations of     39
# Arc:   2.25y
# First observation: 2015/06/23
#  Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000061   0.039550   0.000062   0.012635   0.030422   0.000000
# Chi-squared of fit:    16.88 DOF:     72 RMS:  0.12
# Min/Max residuals:    -0.33    0.31
# Exact a, adot, b, bdot, g, gdot:
  2.008049E-05  3.882690E-02  6.636914E-06  1.257481E-02  2.985868E-02  9.813565E-03
# Covariance matrix:
  1.3659E-13  1.1107E-13 -1.5531E-14  4.4954E-14  1.8149E-13  1.8899E-12
  1.1107E-13  8.8319E-13 -8.2054E-14  2.8849E-13  7.1036E-13  1.1985E-11
 -1.5531E-14 -8.2054E-14  8.7884E-14 -8.9303E-14 -6.9905E-14 -1.2771E-12
  4.4954E-14  2.8849E-13 -8.9303E-14  1.9502E-13  2.3157E-13  4.7780E-12
  1.8149E-13  7.1036E-13 -6.9905E-14  2.3157E-13  6.7444E-13  9.6533E-12
  1.8899E-12  1.1985E-11 -1.2771E-12  4.7780E-12  9.6533E-12  1.9783E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.407044    7.249738    1.011699   -0.003975    0.096823  2457197.075148
# Heliocentric elements and errors
Epoch:              2457190.5000  =  2015/06/17
Mean Anomaly:            4.14351 +/-     0.006
Argument of Peri:      338.49770 +/-     0.039
Long of Asc Node:      358.09780 +/-     0.000
Inclination:            18.08409 +/-     0.000
Eccentricity:         0.68437624 +/-    0.0003
Semi-Major Axis:    100.34031008 +/-    0.0659
Time of Perihelion: 2452965.0027 +/-       4.7
Perihelion:          31.66978600 +/-    0.0334
Aphelion:           169.01083416 +/-    0.1141
Period (y)             1005.1280 +/-      0.99
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.22207730 +/-    0.0009
Ecliptic Y            3.20733448 +/-    0.0001
Ecliptic Z            1.40685471 +/-    0.0000
Ecliptic XDOT         0.00039208 +/-    0.0000
Ecliptic YDOT         0.00363282 +/-    0.0000
Ecliptic ZDOT         0.00118987 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.40617690 +/-    0.0009
Geocenter to KBO     33.49109841 +/-    0.0009
# Hcoef:  9.17

The following table shows the complete astrometric record for 15RC279. 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 (15RC279) followed by the observatory code and reference code for the source of the astrometry.

2015 06  23.57437  00 22 48.618  +05 05 16.83  24.4r 15RC279   568  C~2lVT      
2015 07  14.57959  00 23 00.535  +05 10 58.13  25.2r 15RC279   568  C~2lVT      
2015 07  19.55858  00 22 56.429  +05 11 34.23  24.4r 15RC279   568  C~2lVT      
2015 08  13.46351  00 21 58.923  +05 10 27.12  23.8r 15RC279   568  C~2lVT      
2015 08  13.46762  00 21 58.896  +05 10 26.91  24.0r 15RC279   568  C~2lVT      
2015 08  13.50453  00 21 58.757  +05 10 26.28  24.6r 15RC279   568  C~2lVT      
2015 08  13.55793  00 21 58.568  +05 10 25.80  24.6r 15RC279   568  C~2lVT      
2015 08  13.61289  00 21 58.378  +05 10 25.09  24.3r 15RC279   568  C~2lVT      
2015 08  19.57132  00 21 36.348  +05 09 11.53  24.1r 15RC279   568  C~2lVT      
2015 08  19.60028  00 21 36.236  +05 09 10.94  24.4r 15RC279   568  C~2lVT      
2015 08  20.39916  00 21 33.093  +05 08 59.94  24.2r 15RC279   568  C~2lVT      
2015 08  20.44552  00 21 32.893  +05 08 59.19  24.3r 15RC279   568  C~2lVT      
2015 09  07.55043  00 20 10.282  +05 03 18.73  24.3w 15RC279   568  C~2lVT      
2015 09  09.37654  00 20 01.025  +05 02 36.81  24.1r 15RC279   568  C~2lVT      
2015 09  09.42093  00 20 00.790  +05 02 35.90  24.2r 15RC279   568  C~2lVT      
2015 09  09.46188  00 20 00.575  +05 02 34.92  24.3r 15RC279   568  C~2lVT      
2015 09  10.48141  00 19 55.330  +05 02 10.84  24.4w 15RC279   568  C~2lVT      
2015 09  18.44074  00 19 13.223  +04 58 53.01  24.8w 15RC279   568  C~2lVT      
2015 09  18.48843  00 19 12.971  +04 58 51.94  24.5w 15RC279   568  C~2lVT      
2015 10  08.32880  00 17 24.628  +04 49 50.77  24.7w 15RC279   568  C~2lVT      
2015 10  08.38143  00 17 24.318  +04 49 49.12  24.8w 15RC279   568  C~2lVT      
2015 10  09.29849  00 17 19.392  +04 49 23.66  24.3w 15RC279   568  C~2lVT      
2016 09  06.53623  00 27 24.762  +06 37 40.09        15RC279   568  C~2lVT      
2016 09  06.57833  00 27 24.545  +06 37 39.28        15RC279   568  C~2lVT      
2016 09  27.49284  00 25 34.301  +06 29 06.83  24.3w 15RC279   568  C~2lVT      
2016 10  30.32669  00 22 44.544  +06 14 15.09        15RC279   568  C~2lVT      
2016 10  30.33074  00 22 44.522  +06 14 14.90        15RC279   568  C~2lVT      
2016 10  30.36491  00 22 44.378  +06 14 14.25        15RC279   568  C~2lVT      
2016 11  02.28217  00 22 31.496  +06 13 02.87        15RC279   568  C~2lVT      
2016 11  03.27521  00 22 27.273  +06 12 39.26        15RC279   568  C~2lVT      
2016 11  03.28100  00 22 27.232  +06 12 38.86        15RC279   568  C~2lVT      
2016 11  03.32774  00 22 27.051  +06 12 38.17        15RC279   568  C~2lVT      
2016 11  03.33353  00 22 27.015  +06 12 37.83        15RC279   568  C~2lVT      
2016 12  24.25721  00 20 50.254  +06 03 39.79  26.7w 15RC279   568  C~2lVT      
2016 12  24.27988  00 20 50.282  +06 03 39.84  24.8w 15RC279   568  C~2lVT      
2017 01  02.24497  00 21 02.226  +06 05 01.14  24.7w 15RC279   568  C~2lVT      
2017 01  26.23123  00 22 17.181  +06 13 23.33  24.6w 15RC279   568  C~2lVT      
2017 09  16.48602  00 33 43.312  +08 06 11.88  24.5w 15RC279   568  C~2lVT      
2017 09  22.43395  00 33 11.815  +08 03 47.38        15RC279   568  C~2lVT      

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     0.10       0.00     0.00
     2   0.0575    298.67     0.03     242.86     0.02
     3   0.0711    256.65    -0.07     300.30    -0.02
     4   0.1393   -558.68     0.31     579.12     0.20
     5   0.1393   -559.13     0.07     579.09     0.12
     6   0.1394   -561.29    -0.14     579.33    -0.05
     7   0.1396   -564.07    -0.09     580.01     0.02
     8   0.1397   -566.96    -0.06     580.48    -0.13
     9   0.1560   -898.26    -0.04     643.46    -0.13
    10   0.1561   -900.03    -0.05     643.58    -0.33
    11   0.1583   -947.50     0.11     652.10     0.02
    12   0.1584   -950.54    -0.08     652.60     0.01
    13   0.2080  -2218.64    -0.08     829.94     0.06
    14   0.2130  -2362.25     0.04     846.40     0.02
    15   0.2131  -2365.84     0.04     846.96     0.15
    16   0.2132  -2369.17     0.01     847.33     0.13
    17   0.2160  -2450.67    -0.03     856.36    -0.01
    18   0.2378  -3106.80    -0.24     924.82    -0.17
    19   0.2380  -3110.69    -0.04     925.34    -0.08
    20   0.2923  -4812.20     0.27    1072.92     0.09
    21   0.2924  -4817.11    -0.09    1073.25     0.04
    22   0.2949  -4894.83     0.01    1079.20     0.07
    23   1.2073   5978.13    -0.08    3464.54    -0.11
    24   1.2074   5974.84    -0.12    3465.07    -0.01
    25   1.2647   4261.83     0.19    3642.33    -0.04
    26   1.3546   1583.84     0.11    3824.26     0.02
    27   1.3546   1583.46     0.03    3824.21    -0.04
    28   1.3547   1581.23     0.30    3824.47     0.06
    29   1.3626   1376.53    -0.25    3835.03     0.11
    30   1.3654   1309.35     0.07    3838.31    -0.02
    31   1.3654   1308.63    -0.25    3838.18    -0.17
    32   1.3655   1305.88     0.21    3838.62     0.08
    33   1.3655   1305.25    -0.02    3838.52    -0.04
    34   1.5049   -233.18    -0.13    3916.95     0.09
    35   1.5050   -232.78    -0.00    3916.83    -0.05
    36   1.5296    -36.95    -0.06    3920.75     0.01
    37   1.5952   1188.63     0.01    3938.44     0.08
    38   2.2338  13263.17     0.03    6146.40     0.02
    39   2.2501  12774.05    -0.03    6196.12    -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.

15RC279    quality flag:3

Type:       CENTAURS  CENTAURS  CENTAURS

axisobj       103.253   103.532   102.976
ecceobj         0.693     0.694     0.692
incobj         18.026    18.025    18.026
qmin           29.298    29.537    29.699
qmax          221.278   189.915   197.148
amean         114.728   101.950   105.762
amin           99.483    96.303    96.971
amax          126.591   110.592   114.347
emean           0.728     0.695     0.703
emin            0.681     0.667     0.678
emax            0.751     0.718     0.726
imean          16.395    17.206    17.457
imin           14.032    15.321    15.397
imax           19.097    19.591    19.791
excite_mean     0.782     0.755     0.764
fracstop        1.000     1.000     1.000
cjmean          2.826     2.822     2.826

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       148.7     172.1     155.2
kozaiamp        180.0     180.0     180.0