Orbit Fit and Astrometric record for 15RR277

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: 15RR277   
# Created Sun Apr 21 01:10:09 2019
# Orbit generated from Bernstein formalism
# Fitting   47 observations of   47
# Arc:   2.50y
# First observation: 2015/06/23
#  Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.000122   0.017388   0.000016   0.002411   0.021488   0.000000
# Chi-squared of fit:     9.50 DOF:   88 RMS:  0.08
# Min/Max residuals:    -0.24    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.293904E-05  1.705586E-02  1.685432E-06  2.405328E-03  2.122775E-02  2.915428E-03
# Covariance matrix:
  2.4645E-13  1.1269E-13 -1.0262E-14  4.3254E-14  3.3111E-13  9.4540E-12
  1.1269E-13  3.1016E-13 -1.1367E-14  4.8891E-14  4.1654E-13  1.0711E-11
 -1.0262E-14 -1.1367E-14  1.0400E-13 -7.8602E-14 -2.7603E-14 -1.5005E-12
  4.3254E-14  4.8891E-14 -7.8602E-14  9.8657E-14  1.1408E-13  5.8613E-12
  3.3111E-13  4.1654E-13 -2.7603E-14  1.1408E-13  7.7565E-13  2.4877E-11
  9.4540E-12  1.0711E-11 -1.5005E-12  5.8613E-12  2.4877E-11  1.2693E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.392905    6.767135    1.012474    0.000701    0.088446  2457197.071038
# Heliocentric elements and errors
Epoch:              2457190.5000  =  2015/06/17
Mean Anomaly:          136.14120 +/-     0.356
Argument of Peri:      205.37715 +/-     0.338
Long of Asc Node:        8.32652 +/-     0.000
Inclination:             8.02383 +/-     0.001
Eccentricity:         0.24342983 +/-    0.0007
Semi-Major Axis:     39.26461465 +/-    0.0150
Time of Perihelion: 2423205.4810 +/-      86.6
Perihelion:          29.70643609 +/-    0.0315
Aphelion:            48.82279321 +/-    0.0348
Period (y)              246.0425 +/-      0.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           46.80684941 +/-    0.0019
Ecliptic Y            4.53543898 +/-    0.0002
Ecliptic Z           -0.32290371 +/-    0.0000
Ecliptic XDOT         0.00011383 +/-    0.0000
Ecliptic YDOT         0.00222278 +/-    0.0000
Ecliptic ZDOT         0.00030771 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.02717964 +/-    0.0019
Geocenter to KBO     47.10815035 +/-    0.0020
# Hcoef:  7.78

The following table shows the complete astrometric record for 15RR277. 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 (15RR277) followed by the observatory code and reference code for the source of the astrometry.

2015 06  23.57026  00 25 28.508  +02 19 32.35  24.4r 15RR277   568  C~2lVN      
2015 07  14.58775  00 25 32.482  +02 20 17.71  24.7r 15RR277   568  C~2lVN      
2015 07  19.56683  00 25 28.509  +02 19 56.84  24.7r 15RR277   568  C~2lVN      
2015 08  11.46704  00 24 47.589  +02 15 56.40  24.4r 15RR277   568  C~2lVN      
2015 08  11.51158  00 24 47.459  +02 15 55.87  24.4r 15RR277   568  C~2lVN      
2015 09  08.37633  00 23 16.826  +02 06 44.27  24.2r 15RR277   568  C~2lVN      
2015 09  08.48053  00 23 16.414  +02 06 41.77  24.0r 15RR277   568  C~2lVN      
2015 09  08.52274  00 23 16.244  +02 06 40.83  24.2r 15RR277   568  C~2lVN      
2015 09  09.49961  00 23 12.498  +02 06 17.85  24.3w 15RR277   568  C~2lVN      
2015 09  10.44054  00 23 08.857  +02 05 55.62  24.6w 15RR277   568  C~2lVN      
2015 09  16.42148  00 22 45.204  +02 03 30.94  24.2w 15RR277   568  C~2lVN      
2015 10  03.33607  00 21 35.695  +01 56 26.68  24.1r 15RR277   568  C~2lVN      
2015 10  03.34821  00 21 35.639  +01 56 26.31  24.5w 15RR277   568  C~2lVN      
2015 10  03.40227  00 21 35.404  +01 56 25.07  24.6w 15RR277   568  C~2lVN      
2015 10  07.28650  00 21 19.427  +01 54 47.82  24.5r 15RR277   568  C~2lVN      
2015 10  07.31809  00 21 19.298  +01 54 46.88  24.1r 15RR277   568  C~2lVN      
2015 10  07.37159  00 21 19.068  +01 54 45.61  24.7r 15RR277   568  C~2lVN      
2016 09  05.54890  00 26 50.719  +02 38 51.49  24.3w 15RR277   568  C~2lVN      
2016 09  07.48826  00 26 43.438  +02 38 07.25  24.5w 15RR277   568  C~2lVN      
2016 09  07.53459  00 26 43.257  +02 38 06.17  24.6w 15RR277   568  C~2lVN      
2016 09  26.57548  00 25 27.071  +02 30 22.52  24.2w 15RR277   568  C~2lVN      
2016 10  27.36317  00 23 24.812  +02 18 01.86  24.6w 15RR277   568  C~2lVN      
2016 10  27.43514  00 23 24.553  +02 18 00.41  24.6w 15RR277   568  C~2lVN      
2016 10  27.44458  00 23 24.515  +02 18 00.06  24.9w 15RR277   568  C~2lVN      
2016 10  27.45037  00 23 24.509  +02 17 59.83  25.3w 15RR277   568  C~2lVN      
2016 10  28.31680  00 23 21.428  +02 17 41.46  24.7w 15RR277   568  C~2lVN      
2016 10  28.32258  00 23 21.408  +02 17 41.43  25.1w 15RR277   568  C~2lVN      
2016 10  28.34764  00 23 21.318  +02 17 40.95  24.8w 15RR277   568  C~2lVN      
2016 10  29.28623  00 23 18.005  +02 17 21.04  24.6w 15RR277   568  C~2lVN      
2016 10  29.38909  00 23 17.634  +02 17 18.91  24.7w 15RR277   568  C~2lVN      
2016 10  30.33565  00 23 14.344  +02 16 59.19  24.5w 15RR277   568  C~2lVN      
2016 11  02.24820  00 23 04.464  +02 16 00.18  24.4w 15RR277   568  C~2lVN      
2016 11  03.22971  00 23 01.198  +02 15 40.81  24.6r 15RR277   568  C~2lVN      
2016 11  03.28691  00 23 01.026  +02 15 39.78  24.2w 15RR277   568  C~2lVN      
2016 11  03.33931  00 23 00.850  +02 15 38.69  24.7w 15RR277   568  C~2lVN      
2016 11  04.25321  00 22 57.885  +02 15 20.93  24.5w 15RR277   568  C~2lVN      
2016 11  04.31874  00 22 57.661  +02 15 19.83  24.7w 15RR277   568  C~2lVN      
2016 12  24.23886  00 21 37.778  +02 08 10.08  25.1w 15RR277   568  C~2lVN      
2016 12  24.25172  00 21 37.782  +02 08 10.12  24.7w 15RR277   568  C~2lVN      
2017 01  02.23941  00 21 43.763  +02 09 04.31  23.8w 15RR277   568  C~2lVN      
2017 01  26.22433  00 22 30.783  +02 14 49.02  24.5w 15RR277   568  C~2lVN      
2017 01  27.25017  00 22 33.730  +02 15 09.85  24.4w 15RR277   568  C~2lVN      
2017 01  27.25763  00 22 33.754  +02 15 10.04  24.3w 15RR277   568  C~2lVN      
2017 01  28.24596  00 22 36.670  +02 15 30.40        15RR277   568  C~2lVN      
2017 01  28.25342  00 22 36.696  +02 15 30.72  24.9w 15RR277   568  C~2lVN      
2017 11  22.37572  00 25 33.133  +02 41 36.26  24.6w 15RR277   568  C~2lVN      
2017 12  23.31586  00 24 59.415  +02 38 46.74  25.0w 15RR277   568  C~2lVN      

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     0.02
  2   0.0575     72.64    -0.05      18.12    -0.00
  3   0.0712      9.70     0.04      22.49    -0.06
  4   0.1339   -648.70     0.15      44.13    -0.11
  5   0.1340   -650.70     0.02      44.42     0.11
  6   0.2103  -2116.67     0.12      75.18     0.02
  7   0.2106  -2123.33     0.01      75.32    -0.00
  8   0.2107  -2126.04    -0.05      75.47     0.07
  9   0.2134  -2186.71     0.02      76.58     0.00
 10   0.2159  -2245.64    -0.03      77.76     0.05
 11   0.2323  -2628.56     0.05      85.20    -0.04
 12   0.2786  -3753.67     0.04     108.05    -0.03
 13   0.2787  -3754.58    -0.05     108.05    -0.06
 14   0.2788  -3758.31    -0.11     108.30     0.09
 15   0.2894  -4016.85     0.05     113.84     0.07
 16   0.2895  -4019.00     0.02     113.74    -0.08
 17   0.2897  -4022.67    -0.05     113.94     0.02
 18   1.2046   1589.85     0.03     577.88    -0.03
 19   1.2099   1472.14     0.03     580.34     0.00
 20   1.2100   1469.22    -0.00     580.42     0.00
 21   1.2622    237.25    -0.15     605.72     0.10
 22   1.3465  -1738.61    -0.18     650.13    -0.01
 23   1.3467  -1742.75    -0.08     650.34     0.06
 24   1.3467  -1743.41    -0.19     650.24    -0.06
 25   1.3467  -1743.58    -0.02     650.06    -0.24
 26   1.3491  -1793.26     0.01     651.47    -0.10
 27   1.3491  -1793.55     0.06     651.56    -0.02
 28   1.3492  -1794.98     0.09     651.65     0.02
 29   1.3517  -1848.46    -0.04     653.01    -0.02
 30   1.3520  -1854.41    -0.07     653.26     0.02
 31   1.3546  -1907.51    -0.03     654.66     0.00
 32   1.3626  -2066.87     0.11     659.06    -0.02
 33   1.3653  -2119.50    -0.21     660.65     0.06
 34   1.3654  -2122.27     0.09     660.72     0.03
 35   1.3656  -2125.13     0.06     660.77    -0.03
 36   1.3681  -2172.97     0.08     662.04    -0.13
 37   1.3682  -2176.49     0.04     662.36     0.06
 38   1.5049  -3446.42     0.08     741.71     0.05
 39   1.5049  -3446.35     0.09     741.72     0.04
 40   1.5296  -3342.54    -0.08     755.99    -0.03
 41   1.5952  -2558.71    -0.07     793.52    -0.01
 42   1.5980  -2509.89    -0.07     795.17     0.06
 43   1.5980  -2509.49    -0.02     795.20     0.07
 44   1.6008  -2461.28     0.02     796.60    -0.03
 45   1.6008  -2460.80     0.14     796.74     0.09
 46   2.4170    587.05    -0.13    1188.68     0.02
 47   2.5017     55.95     0.24    1232.72    -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.

15RR277    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.554    39.597    39.512
ecceobj         0.236     0.238     0.234
incobj          7.978     7.978     7.977
qmin           28.284    28.278    28.333
qmax           51.312    51.264    51.054
amean          39.455    39.455    39.454
amin           39.100    39.101    39.068
amax           39.946    39.925    39.958
emean           0.247     0.239     0.250
emin            0.205     0.193     0.202
emax            0.285     0.284     0.282
imean           7.836     8.479     7.357
imin            5.127     5.338     4.855
imax           10.867    11.155    10.708
excite_mean     0.284     0.283     0.283
fracstop        1.000     1.000     1.000
cjmean          2.960     2.960     2.960

libcent 0       180.5     180.3     179.9
libamp  0        31.4      33.9      46.4
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       241.3     219.8     254.1
kozaiamp         95.4     179.9      69.5