Orbit Fit and Astrometric record for 15RH279

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: 15RH279   
# Created Tue Apr 23 01:10:44 2019
# Orbit generated from Bernstein formalism
# Fitting   35 observations of   35
# Arc:   2.50y
# First observation: 2015/06/23
#  Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000034   0.026701   0.000005  -0.004708   0.024304   0.000000
# Chi-squared of fit:    17.05 DOF:   64 RMS:  0.12
# Min/Max residuals:    -0.30    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.750620E-05  2.585104E-02 -2.840767E-06 -4.570947E-03  2.357090E-02 -6.225729E-03
# Covariance matrix:
  1.8496E-13  5.1138E-14  1.4798E-15 -1.8406E-14  1.6856E-13  1.9667E-12
  5.1138E-14  5.1920E-13  2.1955E-14 -1.0494E-13  4.4232E-13  1.0892E-11
  1.4798E-15  2.1955E-14  1.1210E-13 -7.8122E-14  1.6502E-14  6.5202E-13
 -1.8406E-14 -1.0494E-13 -7.8122E-14  1.0028E-13 -9.1924E-14 -2.8283E-12
  1.6856E-13  4.4232E-13  1.6502E-14 -9.1924E-14  4.9219E-13  9.6058E-12
  1.9667E-12  1.0892E-11  6.5202E-13 -2.8283E-12  9.6058E-12  2.9212E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.730734    8.408794    1.009496   -0.003461    0.117622  2457197.056068
# Heliocentric elements and errors
Epoch:              2457190.5000  =  2015/06/17
Mean Anomaly:          343.09302 +/-     0.026
Argument of Peri:      218.31651 +/-     0.073
Long of Asc Node:      196.72753 +/-     0.000
Inclination:            10.20775 +/-     0.001
Eccentricity:         0.46334099 +/-    0.0006
Semi-Major Axis:     70.54045371 +/-    0.0548
Time of Perihelion: 2467353.4371 +/-       9.9
Perihelion:          37.85617035 +/-    0.0539
Aphelion:           103.22473708 +/-    0.0921
Period (y)              592.4689 +/-      0.69
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.97767024 +/-    0.0013
Ecliptic Y            5.18594305 +/-    0.0002
Ecliptic Z            1.28128140 +/-    0.0000
Ecliptic XDOT        -0.00114074 +/-    0.0000
Ecliptic YDOT         0.00286083 +/-    0.0000
Ecliptic ZDOT        -0.00055247 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.31619650 +/-    0.0012
Geocenter to KBO     42.42519190 +/-    0.0013
# Hcoef:  8.81

The following table shows the complete astrometric record for 15RH279. 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 (15RH279) followed by the observatory code and reference code for the source of the astrometry.

2015 06  23.55529  00 28 09.365  +04 55 30.18  24.9r 15RH279   568  C~2lVT      
2015 07  14.60008  00 28 22.567  +04 56 52.46  25.4r 15RH279   568  C~2lVT      
2015 08  19.60440  00 27 22.010  +04 50 04.34  24.6r 15RH279   568  C~2lVT      
2015 08  20.40889  00 27 19.625  +04 49 47.79  25.3r 15RH279   568  C~2lVT      
2015 08  20.45757  00 27 19.464  +04 49 46.96  24.9r 15RH279   568  C~2lVT      
2015 09  07.55453  00 26 16.660  +04 42 37.42  25.1w 15RH279   568  C~2lVT      
2015 09  09.38065  00 26 09.557  +04 41 48.10  25.1r 15RH279   568  C~2lVT      
2015 09  09.42501  00 26 09.364  +04 41 47.04  24.9r 15RH279   568  C~2lVT      
2015 09  09.46595  00 26 09.210  +04 41 45.78  25.1r 15RH279   568  C~2lVT      
2015 09  10.48959  00 26 05.167  +04 41 17.78  25.4w 15RH279   568  C~2lVT      
2015 09  18.44605  00 25 32.707  +04 37 31.84  24.9w 15RH279   568  C~2lVT      
2015 10  08.33404  00 24 08.015  +04 27 31.05  25.1w 15RH279   568  C~2lVT      
2015 10  08.38664  00 24 07.787  +04 27 29.32  24.8w 15RH279   568  C~2lVU      
2015 10  09.30372  00 24 03.919  +04 27 01.36  24.9w 15RH279   568  C~2lVU      
2015 12  08.22831  00 21 10.527  +04 03 52.57  25.3w 15RH279   568  C~2lVU      
2016 09  05.47023  00 32 24.839  +05 04 21.97  24.6w 15RH279   568  C~2lVU      
2016 09  06.42437  00 32 21.210  +05 03 57.00  25.4w 15RH279   568  C~2lVU      
2016 09  06.46487  00 32 21.046  +05 03 55.94  24.8w 15RH279   568  C~2lVU      
2016 09  25.34339  00 31 03.614  +04 54 56.11  25.2w 15RH279   568  C~2lVU      
2016 09  25.44037  00 31 03.204  +04 54 53.36  25.8w 15RH279   568  C~2lVU      
2016 09  26.42319  00 30 58.985  +04 54 23.24  24.8w 15RH279   568  C~2lVU      
2016 10  30.34865  00 28 39.184  +04 37 29.76  25.1w 15RH279   568  C~2lVU      
2016 10  30.35270  00 28 39.175  +04 37 30.00  27.0w 15RH279   568  C~2lVU      
2016 11  03.30427  00 28 25.222  +04 35 43.61  24.9w 15RH279   568  C~2lVU      
2016 11  03.31006  00 28 25.199  +04 35 43.47  25.1w 15RH279   568  C~2lVU      
2016 11  03.35669  00 28 25.021  +04 35 42.10  25.0w 15RH279   568  C~2lVU      
2016 11  03.36248  00 28 25.010  +04 35 42.10  25.0w 15RH279   568  C~2lVU      
2016 12  24.27431  00 27 03.262  +04 22 52.97  24.8w 15RH279   568  C~2lVU      
2017 01  02.26396  00 27 11.979  +04 23 03.77  24.3w 15RH279   568  C~2lVU      
2017 01  02.28151  00 27 12.001  +04 23 03.90  24.7w 15RH279   568  C~2lVU      
2017 01  29.22410  00 28 20.927  +04 28 16.11  24.9w 15RH279   568  C~2lVU      
2017 09  16.51863  00 37 50.534  +05 20 39.54  24.9w 15RH279   568  C~2lVU      
2017 09  22.47204  00 37 25.572  +05 17 45.54  25.8w 15RH279   568  C~2lVU      
2017 11  22.34219  00 33 35.322  +04 49 36.17  25.1w 15RH279   568  C~2lVU      
2017 12  23.31121  00 33 02.141  +04 43 41.80  24.9w 15RH279   568  C~2lVU      

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    -0.03       0.00    -0.05
  2   0.0576    213.75     0.28      -2.32    -0.01
  3   0.1562   -778.91     0.14     -19.70     0.05
  4   0.1584   -818.20    -0.05     -20.82    -0.20
  5   0.1585   -820.74    -0.15     -20.63     0.01
  6   0.2081  -1852.91    -0.06     -43.94     0.11
  7   0.2131  -1969.96     0.02     -47.23    -0.04
  8   0.2132  -1973.03    -0.13     -47.06     0.19
  9   0.2133  -1975.64    -0.05     -47.31    -0.01
 10   0.2161  -2042.24     0.03     -49.11    -0.05
 11   0.2379  -2577.39     0.02     -64.56    -0.16
 12   0.2923  -3978.53     0.01    -114.67     0.14
 13   0.2925  -3982.35    -0.05    -114.91     0.03
 14   0.2950  -4046.56     0.09    -117.66     0.06
 15   0.4591  -6980.53    -0.02    -363.61     0.09
 16   1.2044   3718.45     0.02   -1016.34    -0.15
 17   1.2070   3658.76     0.01   -1017.96    -0.03
 18   1.2071   3656.09    -0.07   -1017.97     0.01
 19   1.2588   2379.63    -0.25   -1058.58     0.17
 20   1.2591   2372.92     0.01   -1058.69     0.25
 21   1.2618   2303.09    -0.10   -1061.53    -0.11
 22   1.3547    -17.12     0.01   -1168.64    -0.07
 23   1.3547    -17.15     0.23   -1168.37     0.22
 24   1.3655   -250.83     0.15   -1183.74    -0.12
 25   1.3655   -251.20     0.12   -1183.74    -0.09
 26   1.3656   -254.19    -0.13   -1183.95    -0.14
 27   1.3657   -254.34     0.06   -1183.88    -0.06
 28   1.5050  -1681.29    -0.14   -1407.48    -0.30
 29   1.5297  -1557.25     0.07   -1449.09    -0.12
 30   1.5297  -1556.90     0.08   -1449.10    -0.06
 31   1.6035   -486.55    -0.22   -1569.54     0.32
 32   2.2340   8581.78    -0.03   -2027.84    -0.07
 33   2.2503   8169.90     0.07   -2041.89     0.12
 34   2.4169   4338.85    -0.03   -2245.37     0.10
 35   2.5017   3743.22     0.08   -2376.15    -0.01

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.

15RH279    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        71.843    71.983    71.704
ecceobj         0.471     0.473     0.470
incobj         10.162    10.162    10.162
qmin           36.929    37.024    37.160
qmax          106.746   106.930   106.262
amean          70.877    71.051    70.724
amin           69.958    70.050    69.739
amax           72.194    72.394    72.054
emean           0.466     0.467     0.463
emin            0.455     0.457     0.453
emax            0.479     0.479     0.475
imean          10.108    10.210    10.214
imin            9.585     9.857     9.991
imax           10.802    10.680    10.624
excite_mean     0.498     0.500     0.496
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.099

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       182.2     204.3     190.1
kozaiamp        180.0     180.0     180.0