Orbit Fit and Astrometric record for 01RY143

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: 01RY143   
# Created Fri May 25 01:37:22 2018
# Orbit generated from Bernstein formalism
# Fitting   50 observations of   50
# Arc:  15.97y
# First observation: 2001/09/12
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
   0.000091   0.019082  -0.000042   0.002226   0.023129   0.000000
# Chi-squared of fit:    12.54 DOF:   94 RMS:  0.09
# Min/Max residuals:    -0.29    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.514221E-05  1.928009E-02  7.774126E-07  2.251108E-03  2.218062E-02  2.636075E-03
# Covariance matrix:
  2.5670E-13 -1.8483E-14  1.0674E-16 -9.6077E-17  3.9851E-14 -3.7923E-15
 -1.8483E-14  3.3464E-14 -2.2941E-15  3.8622E-15  4.3310E-14  1.2302E-13
  1.0674E-16 -2.2941E-15  2.3747E-13 -1.8053E-14 -2.9926E-15 -8.8378E-15
 -9.6077E-17  3.8622E-15 -1.8053E-14  1.9875E-15  5.2142E-15  1.4874E-14
  3.9851E-14  4.3310E-14 -2.9926E-15  5.2142E-15  1.4466E-13  1.6454E-13
 -3.7923E-15  1.2302E-13 -8.8378E-15  1.4874E-14  1.6454E-13  4.7381E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.834930   16.187416    0.454278    0.028581   -0.895976  2452164.871723
# Heliocentric elements and errors
Epoch:              2452160.5000  =  2001/09/08
Mean Anomaly:          119.59405 +/-     0.017
Argument of Peri:      241.91980 +/-     0.012
Long of Asc Node:        0.61238 +/-     0.000
Inclination:             6.91235 +/-     0.000
Eccentricity:         0.15053032 +/-    0.0000
Semi-Major Axis:     42.20410196 +/-    0.0020
Time of Perihelion: 2418891.6723 +/-       4.1
Perihelion:          35.85110519 +/-    0.0023
Aphelion:            48.55709874 +/-    0.0028
Period (y)              274.1828 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.26466195 +/-    0.0007
Ecliptic Y           12.38203742 +/-    0.0002
Ecliptic Z            1.44365983 +/-    0.0000
Ecliptic XDOT        -0.00036834 +/-    0.0000
Ecliptic YDOT         0.00237471 +/-    0.0000
Ecliptic ZDOT         0.00028835 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.98651217 +/-    0.0007
Geocenter to KBO     45.08439840 +/-    0.0008
# Hcoef:  7.03

The following table shows the complete astrometric record for 01RY143. 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 (01RY143) followed by the observatory code and reference code for the source of the astrometry.

2001 09  12.37098  00 56 48.34   +08 03 36.7   23.4R 01RY143   695  Ce0436      
2001 09  12.45779  00 56 48.01   +08 03 34.9         01RY143   695  Ce0436      
2001 10  19.36157  00 54 15.65   +07 48 49.7   23.2R 01RY143   695  Ce0436      
2001 10  20.36038  00 54 11.49   +07 48 24.8         01RY143   695  Ce0436      
2001 10  21.17073  00 54 08.16   +07 48 04.4         01RY143   695  Ce0436      
2001 10  21.23198  00 54 07.90   +07 48 03.1         01RY143   695  Ce0436      
2013 09  02.44494  01 43 53.939  +14 15 10.03  23.6r 01RY143   568  C~2SCV      
2013 09  02.48778  01 43 53.822  +14 15 09.64  23.8r 01RY143   568  C~2SCV      
2013 09  03.46375  01 43 51.187  +14 14 59.48  23.8r 01RY143   568  C~2SCV      
2013 09  03.51035  01 43 51.061  +14 14 58.90  23.7r 01RY143   568  C~2SCV      
2013 10  08.52484  01 41 45.230  +14 05 17.32  23.3r 01RY143   568  C~2SCV      
2013 11  01.52560  01 40 02.696  +13 56 10.30  23.6r 01RY143   568  C~2SCV      
2013 11  29.26953  01 38 18.951  +13 45 59.86  23.6r 01RY143   568  C~2SCV      
2013 12  04.41381  01 38 03.741  +13 44 23.40  23.6r 01RY143   568  C~2SCV      
2013 12  05.30424  01 38 01.273  +13 44 07.61  23.6r 01RY143   568  C~2SCV      
2014 01  02.21022  01 37 13.251  +13 38 14.42  23.7r 01RY143   568  C~2SCV      
2014 01  02.26526  01 37 13.220  +13 38 14.03  23.7r 01RY143   568  C~2SCV      
2014 01  02.31840  01 37 13.183  +13 38 13.69  23.5r 01RY143   568  C~2SCV      
2014 07  26.52974  01 48 32.643  +14 44 33.24  23.7r 01RY143   568  C~2SCV      
2014 07  26.57297  01 48 32.654  +14 44 33.56  23.6r 01RY143   568  C~2SCV      
2014 08  24.54028  01 48 06.927  +14 44 52.78  23.7r 01RY143   568  C~2SCV      
2014 08  30.44562  01 47 54.005  +14 44 11.41  23.5r 01RY143   568  C~2SCV      
2014 08  30.55222  01 47 53.717  +14 44 10.49  23.8r 01RY143   568  C~2SCV      
2014 09  18.47076  01 46 57.411  +14 40 23.55  23.7r 01RY143   568  C~2SCV      
2014 09  18.51348  01 46 57.260  +14 40 22.88  23.6r 01RY143   568  C~2SCV      
2014 09  23.51178  01 46 39.215  +14 39 01.60  23.6r 01RY143   568  C~2SCV      
2014 10  22.29484  01 44 40.654  +14 29 12.39  23.6r 01RY143   568  C~2SCV      
2014 10  22.33958  01 44 40.463  +14 29 11.36  23.5r 01RY143   568  C~2SCV      
2014 10  22.38432  01 44 40.259  +14 29 10.35  23.5r 01RY143   568  C~2SCV      
2014 10  23.48145  01 44 35.508  +14 28 45.19  23.4r 01RY143   568  C~2SCV      
2014 10  25.49739  01 44 26.818  +14 27 58.73  23.4r 01RY143   568  C~2SCV      
2014 11  21.26474  01 42 38.645  +14 17 48.81  23.7r 01RY143   568  C~2SCV      
2014 11  21.27445  01 42 38.611  +14 17 48.54  23.7r 01RY143   568  C~2SCV      
2014 11  21.42970  01 42 38.033  +14 17 45.19  23.5r 01RY143   568  C~2SCV      
2015 01  28.27933  01 41 12.371  +14 06 22.55  25.0r 01RY143   568  C~2SCV      
2015 10  09.40974  01 49 29.949  +15 02 31.86  23.6w 01RY143   568  C~2SCV      
2015 10  09.42762  01 49 29.869  +15 02 31.50  23.6w 01RY143   568  C~2SCV      
2015 10  09.45292  01 49 29.762  +15 02 31.05  23.7w 01RY143   568  C~2SCV      
2015 10  09.47042  01 49 29.688  +15 02 30.67  23.8w 01RY143   568  C~2SCV      
2015 10  09.51628  01 49 29.490  +15 02 29.75  23.7w 01RY143   568  C~2SCW      
2015 10  13.35876  01 49 13.267  +15 01 09.29        01RY143   568  C~2SCW      
2015 10  13.42514  01 49 12.981  +15 01 07.83        01RY143   568  C~2SCW      
2015 10  14.47894  01 49 08.477  +15 00 45.29  23.6r 01RY143   568  C~2SCW      
2015 10  14.54658  01 49 08.187  +15 00 43.87        01RY143   568  C~2SCW      
2015 12  06.20482  01 45 42.668  +14 41 33.62  23.4r 01RY143   568  C~2SCW      
2015 12  06.27161  01 45 42.477  +14 41 32.46  23.7r 01RY143   568  C~2SCW      
2015 12  07.40784  01 45 39.264  +14 41 11.89  23.9w 01RY143   568  C~2SCW      
2016 09  27.46659  01 54 07.949  +15 34 09.40  23.8w 01RY143   568  C~2SCW      
2017 08  25.58743  01 59 37.837  +16 07 50.29  24.0w 01RY143   568  C~2SCW      
2017 08  30.60899  01 59 27.517  +16 07 22.94  23.9w 01RY143   568  C~2SCW      

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    -0.29       0.00     0.17
  2   0.0002     -5.22    -0.25       0.23     0.17
  3   0.1013  -2435.07     0.27      58.75    -0.20
  4   0.1040  -2501.71     0.07      59.73     0.01
  5   0.1062  -2555.25     0.07      60.09    -0.15
  6   0.1064  -2559.32     0.10      60.39     0.08
  7  11.9728  47685.55    -0.00    5475.90    -0.08
  8  11.9729  47683.73     0.01    5476.13    -0.04
  9  11.9756  47642.17    -0.01    5479.95     0.00
 10  11.9757  47640.15     0.02    5480.04    -0.11
 11  12.0716  45623.85     0.18    5571.68    -0.04
 12  12.1373  43959.06    -0.08    5579.56     0.06
 13  12.2133  42258.06     0.06    5536.35    -0.13
 14  12.2274  42006.46    -0.01    5523.66    -0.03
 15  12.2298  41965.60    -0.15    5521.47     0.16
 16  12.3062  41153.82    -0.01    5435.51     0.04
 17  12.3063  41153.24     0.09    5435.30    -0.01
 18  12.3065  41152.59     0.09    5435.17     0.02
 19  12.8683  52354.96     0.01    5750.35    -0.01
 20  12.8685  52355.23     0.04    5750.61    -0.02
 21  12.9478  51989.86    -0.08    5900.59    -0.05
 22  12.9639  51787.61     0.33    5926.45    -0.11
 23  12.9642  51783.10    -0.05    5927.03    -0.03
 24  13.0160  50885.60    -0.02    5994.95    -0.01
 25  13.0161  50883.18     0.00    5995.07    -0.03
 26  13.0298  50592.73    -0.03    6008.74     0.01
 27  13.1086  48668.06     0.02    6047.63     0.02
 28  13.1087  48664.93     0.09    6047.62    -0.02
 29  13.1089  48661.63    -0.02    6047.70     0.02
 30  13.1119  48584.07    -0.09    6047.85     0.02
 31  13.1174  48442.09     0.01    6047.73    -0.08
 32  13.1907  46665.91    -0.04    6017.81    -0.01
 33  13.1907  46665.32    -0.04    6017.73    -0.08
 34  13.1911  46655.81    -0.17    6017.49    -0.05
 35  13.3769  45179.04    -0.01    5804.83     0.02
 36  14.0727  53584.73     0.01    6506.88    -0.05
 37  14.0727  53583.43    -0.04    6506.93    -0.03
 38  14.0728  53581.71     0.00    6507.04     0.03
 39  14.0728  53580.50     0.00    6507.04     0.01
 40  14.0730  53577.28    -0.02    6507.15     0.05
 41  14.0835  53312.15     0.02    6511.28     0.06
 42  14.0837  53307.46     0.02    6511.31     0.00
 43  14.0865  53233.80    -0.02    6512.27     0.03
 44  14.0867  53229.07     0.05    6512.37     0.05
 45  14.2309  49834.27    -0.04    6445.53     0.07
 46  14.2311  49831.09     0.04    6445.39     0.10
 47  14.2342  49777.23    -0.09    6441.96     0.04
 48  15.0420  58342.73    -0.09    6958.24     0.02
 49  15.9513  63963.36     0.02    7309.75     0.05
 50  15.9651  63799.71    -0.02    7333.59     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.

01RY143    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        42.373    42.380    42.367
ecceobj         0.150     0.149     0.150
incobj          6.892     6.892     6.892
qmin           33.790    33.900    32.764
qmax           51.831    51.428    52.655
amean          42.460    42.479    42.324
amin           41.693    41.721    41.708
amax           43.006    42.990    43.009
emean           0.144     0.137     0.181
emin            0.104     0.097     0.140
emax            0.205     0.199     0.226
imean          10.687    10.494    11.508
imin            7.490     7.488     7.491
imax           12.391    12.089    13.810
excite_mean     0.236     0.229     0.270
fracstop        1.000     1.000     1.000
cjmean          3.016     3.020     2.991

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       178.3     179.8     183.2
kozaiamp        180.0     180.0     180.0