Orbit Fit and Astrometric record for 15RC277

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: 15RC277   
# Created Mon Dec  6 02:13:27 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     38 observations of     38
# Arc:   5.40y
# First observation: 2015/06/23
#  Last observation: 2020/11/14
# Chi-squared of fit:    11.95 DOF:     70 RMS:  0.10
# Min/Max residuals:    -0.20    0.40
# Exact a, adot, b, bdot, g, gdot:
  1.482241E-05  2.312524E-02 -6.816981E-06 -1.045253E-02  2.448882E-02  3.224160E-03
# Covariance matrix:
  1.1695E-13 -5.3645E-15 -3.8774E-15  3.4300E-15  7.5575E-14 -5.4462E-14
 -5.3645E-15  1.5164E-13  2.7858E-14 -6.6890E-14  1.1370E-13  1.3620E-12
 -3.8774E-15  2.7858E-14  6.8114E-14 -4.0096E-14  1.6043E-14  3.3319E-13
  3.4300E-15 -6.6890E-14 -4.0096E-14  6.1856E-14 -4.5049E-14 -7.7263E-13
  7.5575E-14  1.1370E-13  1.6043E-14 -4.5049E-14  1.6697E-13  9.3435E-13
 -5.4462E-14  1.3620E-12  3.3319E-13 -7.7263E-13  9.3435E-13  1.5660E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.351147   11.102113    1.002976   -0.006639    0.164064  2457197.102358
# Heliocentric elements and errors
Epoch:              2457196.5000  =  2015/06/23
Mean Anomaly:           34.48184 +/-     0.025
Argument of Peri:      127.69853 +/-     0.041
Long of Asc Node:      194.91415 +/-     0.000
Inclination:            24.34988 +/-     0.000
Eccentricity:         0.15749057 +/-    0.0001
Semi-Major Axis:     46.23093379 +/-    0.0033
Time of Perihelion: 2446199.2191 +/-       8.2
Perihelion:          38.94999772 +/-    0.0068
Aphelion:            53.51186985 +/-    0.0073
Period (y)              314.3455 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.06551444 +/-    0.0007
Ecliptic Y            6.84110581 +/-    0.0001
Ecliptic Z            1.67497951 +/-    0.0000
Ecliptic XDOT        -0.00009984 +/-    0.0000
Ecliptic YDOT         0.00260936 +/-    0.0000
Ecliptic ZDOT        -0.00115276 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.67980000 +/-    0.0007
Geocenter to KBO     40.83489787 +/-    0.0007
# Hcoef:  7.96

The following table shows the complete astrometric record for 15RC277. 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 (15RC277) followed by the observatory code and reference code for the source of the astrometry.

2015 06  23.60158  00 37 07.154  +06 33 20.57  24.2r 15RC277   568  C~2fCK      
2015 07  14.55012  00 37 24.585  +06 34 15.97  24.2r 15RC277   568  C~2fCK      
2015 07  19.52115  00 37 23.005  +06 33 52.29  24.0r 15RC277   568  C~2fCK      
2015 08  13.54153  00 36 43.618  +06 28 22.71  24.2r 15RC277   568  C~2fCK      
2015 08  13.56200  00 36 43.546  +06 28 22.15  23.8r 15RC277   568  C~2fCK      
2015 08  19.55071  00 36 27.008  +06 26 14.83  23.8r 15RC277   568  C~2fCK      
2015 08  19.59211  00 36 26.853  +06 26 13.64  24.2r 15RC277   568  C~2fCK      
2015 08  19.62083  00 36 26.769  +06 26 13.24  24.1r 15RC277   568  C~2fCK      
2015 08  20.42524  00 36 24.379  +06 25 54.47  23.9r 15RC277   568  C~2fCK      
2015 08  20.47472  00 36 24.231  +06 25 53.33  24.1r 15RC277   568  C~2fCK      
2015 09  07.57262  00 35 20.183  +06 17 45.20  24.1w 15RC277   568  C~2fCK      
2015 09  09.40034  00 35 12.833  +06 16 49.22  23.9r 15RC277   568  C~2fCK      
2015 09  09.44140  00 35 12.665  +06 16 47.97  24.0r 15RC277   568  C~2fCK      
2015 09  09.48235  00 35 12.497  +06 16 46.65  24.2r 15RC277   568  C~2fCK      
2015 09  10.50662  00 35 08.313  +06 16 14.76  24.1w 15RC277   568  C~2fCK      
2015 10  08.35519  00 33 05.764  +06 00 24.15  24.0w 15RC277   568  C~2fCK      
2015 10  08.40774  00 33 05.525  +06 00 22.32  24.0w 15RC277   568  C~2fCK      
2015 10  09.32476  00 33 01.417  +05 59 49.61  23.9w 15RC277   568  C~2fCK      
2015 11  10.45092  00 30 52.748  +05 41 49.43  24.2w 15RC277   568  C~2fCK      
2015 12  08.24937  00 29 50.533  +05 30 49.70  24.3w 15RC277   568  C~2fCK      
2016 01  01.31185  00 29 51.005  +05 26 55.57  24.5w 15RC277   568  C~2fCK      
2016 01  02.26295  00 29 52.151  +05 26 53.51  24.6w 15RC277   568  C~2fCK      
2016 09  05.50258  00 41 24.040  +06 16 29.45  24.6w 15RC277   568  C~2fCK      
2016 09  06.45678  00 41 20.345  +06 16 01.04  24.3w 15RC277   568  C~2fCK      
2016 09  06.49805  00 41 20.179  +06 15 59.74  23.9w 15RC277   568  C~2fCK      
2016 09  26.43536  00 39 55.728  +06 05 09.22  24.1w 15RC277   568  C~2fCK      
2016 09  26.45968  00 39 55.624  +06 05 08.41  24.1w 15RC277   568  C~2fCK      
2016 11  03.42622  00 37 12.815  +05 43 22.70  25.8w 15RC277   568  C~2fCK      
2016 11  04.27124  00 37 09.716  +05 42 56.22  24.2w 15RC277   568  C~2fCK      
2016 11  04.33051  00 37 09.496  +05 42 54.37  24.2w 15RC277   568  C~2fCK      
2016 12  29.26796  00 35 39.783  +05 25 30.24  24.5w 15RC277   568  C~2fCK      
2017 01  03.23891  00 35 44.826  +05 25 18.71  23.5w 15RC277   568  C~2fCK      
2017 01  30.22844  00 36 51.393  +05 28 31.75  24.1w 15RC277   568  C~2fCK      
2017 11  22.36083  00 42 08.761  +05 32 44.63  23.9w 15RC277   568  C~2fCK      
2017 12  23.28786  00 41 27.160  +05 24 19.80  24.6w 15RC277   568  C~2fCK      
2017 12  23.30180  00 41 27.139  +05 24 19.78  24.5w 15RC277   568  C~2fCK      
2020 11  14.096580 01 00 08.712  +05 29 29.10  24.5G 15RC277   G37  C~4Nzc      
2020 11  14.152930 01 00 08.515  +05 29 27.77        15RC277   G37  C~4Nzc      

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     0.02       0.00     0.02
     2   0.0574      0.00     0.01       0.00    -0.06
     3   0.0710      0.00    -0.05       0.00    -0.04
     4   0.1395      0.00     0.40       0.00    -0.02
     5   0.1395      0.00     0.13       0.00    -0.17
     6   0.1559      0.00     0.23       0.00     0.23
     7   0.1560      0.00    -0.20       0.00    -0.01
     8   0.1561      0.00    -0.15       0.00     0.24
     9   0.1583      0.00    -0.09       0.00    -0.03
    10   0.1584      0.00    -0.01       0.00    -0.03
    11   0.2080      0.00     0.12       0.00    -0.01
    12   0.2130      0.00    -0.06       0.00     0.03
    13   0.2131      0.00    -0.03       0.00     0.05
    14   0.2132      0.00     0.00       0.00    -0.01
    15   0.2160      0.00    -0.02       0.00    -0.02
    16   0.2923      0.00     0.04       0.00    -0.01
    17   0.2924      0.00     0.06       0.00     0.03
    18   0.2949      0.00     0.00       0.00     0.01
    19   0.3829      0.00    -0.13       0.00    -0.03
    20   0.4590      0.00     0.03       0.00     0.03
    21   0.5249      0.00    -0.08       0.00     0.03
    22   0.5275      0.00    -0.00       0.00     0.03
    23   1.2044      0.00    -0.05       0.00    -0.06
    24   1.2070      0.00    -0.00       0.00     0.02
    25   1.2071      0.00    -0.02       0.00    -0.04
    26   1.2617      0.00    -0.14       0.00    -0.04
    27   1.2618      0.00    -0.04       0.00    -0.01
    28   1.3657      0.00     0.01       0.00    -0.05
    29   1.3680      0.00    -0.01       0.00    -0.00
    30   1.3682      0.00     0.02       0.00    -0.00
    31   1.5186      0.00     0.24       0.00    -0.01
    32   1.5322      0.00     0.10       0.00     0.06
    33   1.6061      0.00    -0.14       0.00     0.05
    34   2.4169      0.00    -0.08       0.00     0.01
    35   2.5015      0.00     0.22       0.00    -0.12
    36   2.5016      0.00    -0.09       0.00    -0.03
    37   5.3949      0.00    -0.01       0.00    -0.05
    38   5.3951      0.00     0.01       0.00     0.14

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.

15RC277    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.707    46.707    46.707
ecceobj         0.165     0.165     0.165
incobj         24.244    24.244    24.244
qmin           38.352    38.304    38.309
qmax           54.989    55.019    54.992
amean          46.458    46.460    46.459
amin           46.072    46.072    46.070
amax           46.904    46.900    46.904
emean           0.157     0.158     0.158
emin            0.144     0.144     0.144
emax            0.172     0.173     0.173
imean          24.505    24.493    24.493
imin           24.138    24.112    24.124
imax           24.824    24.801    24.805
excite_mean     0.444     0.444     0.444
fracstop        1.000     1.000     1.000
cjmean          2.880     2.880     2.880

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       187.4     188.3     188.1
kozaiamp        179.9     179.9     180.0