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 Tue Nov 20 02:07:59 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   50 observations of   50
# Arc:  15.97y
# First observation: 2001/09/12
#  Last observation: 2017/08/30
# Chi-squared of fit:    12.50 DOF:   94 RMS:  0.09
# Min/Max residuals:    -0.34    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.515764E-05  1.928014E-02  7.833429E-07  2.251109E-03  2.218062E-02  2.636115E-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:              2452164.5000  =  2001/09/12
Mean Anomaly:          119.60637 +/-     0.017
Argument of Peri:      241.92168 +/-     0.012
Long of Asc Node:        0.61234 +/-     0.000
Inclination:             6.91234 +/-     0.000
Eccentricity:         0.15052872 +/-    0.0000
Semi-Major Axis:     42.20430720 +/-    0.0020
Time of Perihelion: 2418892.0013 +/-       5.3
Perihelion:          35.85134698 +/-    0.0023
Aphelion:            48.55726742 +/-    0.0028
Period (y)              274.1848 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.26467080 +/-    0.0007
Ecliptic Y           12.38204071 +/-    0.0002
Ecliptic Z            1.44366039 +/-    0.0000
Ecliptic XDOT        -0.00036833 +/-    0.0000
Ecliptic YDOT         0.00237472 +/-    0.0000
Ecliptic ZDOT         0.00028835 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.98644528 +/-    0.0007
Geocenter to KBO     45.08435892 +/-    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    -0.34       0.00     0.04
  2   0.0002      0.00    -0.30       0.00     0.05
  3   0.1013      0.00     0.32       0.00    -0.08
  4   0.1040      0.00     0.06       0.00     0.04
  5   0.1062      0.00     0.12       0.00    -0.12
  6   0.1064      0.00     0.06       0.00     0.11
  7  11.9728      0.00     0.03       0.00    -0.08
  8  11.9729      0.00     0.03       0.00    -0.03
  9  11.9756      0.00    -0.01       0.00    -0.00
 10  11.9757      0.00     0.06       0.00    -0.09
 11  12.0716      0.00     0.19       0.00     0.02
 12  12.1373      0.00    -0.09       0.00     0.03
 13  12.2133      0.00     0.10       0.00    -0.10
 14  12.2274      0.00     0.00       0.00    -0.03
 15  12.2298      0.00    -0.20       0.00     0.09
 16  12.3062      0.00    -0.02       0.00     0.03
 17  12.3063      0.00     0.08       0.00     0.02
 18  12.3065      0.00     0.07       0.00     0.05
 19  12.8683      0.00     0.02       0.00    -0.01
 20  12.8685      0.00     0.05       0.00    -0.01
 21  12.9478      0.00    -0.05       0.00    -0.07
 22  12.9639      0.00     0.35       0.00     0.00
 23  12.9642      0.00    -0.03       0.00    -0.05
 24  13.0160      0.00    -0.01       0.00    -0.01
 25  13.0161      0.00     0.01       0.00    -0.02
 26  13.0298      0.00    -0.03       0.00     0.01
 27  13.1086      0.00     0.02       0.00     0.02
 28  13.1087      0.00     0.09       0.00     0.01
 29  13.1089      0.00    -0.02       0.00     0.02
 30  13.1119      0.00    -0.09       0.00    -0.01
 31  13.1174      0.00     0.04       0.00    -0.07
 32  13.1907      0.00    -0.03       0.00    -0.02
 33  13.1907      0.00    -0.00       0.00    -0.08
 34  13.1911      0.00    -0.13       0.00    -0.10
 35  13.3769      0.00    -0.01       0.00     0.01
 36  14.0727      0.00     0.04       0.00    -0.04
 37  14.0727      0.00    -0.02       0.00    -0.04
 38  14.0728      0.00    -0.01       0.00     0.03
 39  14.0728      0.00     0.00       0.00     0.01
 40  14.0730      0.00    -0.03       0.00     0.04
 41  14.0835      0.00     0.00       0.00     0.06
 42  14.0837      0.00     0.03       0.00     0.01
 43  14.0865      0.00    -0.02       0.00     0.02
 44  14.0867      0.00     0.03       0.00     0.07
 45  14.2309      0.00    -0.06       0.00     0.05
 46  14.2311      0.00     0.00       0.00     0.10
 47  14.2342      0.00    -0.10       0.00     0.01
 48  15.0420      0.00    -0.08       0.00    -0.01
 49  15.9513      0.00     0.01       0.00     0.06
 50  15.9651      0.00    -0.03       0.00     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        42.375    42.375    42.375
ecceobj         0.149     0.150     0.149
incobj          6.892     6.892     6.892
qmin           33.893    33.821    33.884
qmax           50.939    50.797    50.808
amean          42.098    42.098    42.098
amin           41.714    41.690    41.714
amax           42.576    42.601    42.565
emean           0.141     0.141     0.140
emin            0.106     0.108     0.107
emax            0.197     0.194     0.195
imean          10.509    10.490    10.535
imin            7.489     7.489     7.489
imax           12.351    12.320    12.355
excite_mean     0.232     0.231     0.232
fracstop        1.000     1.000     1.000
cjmean          3.015     3.015     3.015

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       180.1     180.2     179.9
kozaiamp        179.9     180.0     179.9