Orbit Fit and Astrometric record for 13AS183

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: 13AS183   
# Created Sun Mar 24 01:09:28 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   94 observations of   94
# Arc:  13.93y
# First observation: 2004/04/14
#  Last observation: 2018/03/18
# Chi-squared of fit:    97.42 DOF:  182 RMS:  0.18
# Min/Max residuals:    -0.91    0.61
# Exact a, adot, b, bdot, g, gdot:
  1.836441E-05  3.093026E-02  7.667352E-06  1.150742E-02  2.708537E-02  2.465162E-03
# Covariance matrix:
  1.6177E-13 -2.1790E-14  4.6187E-15 -4.9100E-15 -5.4862E-14 -3.2900E-14
 -2.1790E-14  1.0594E-14 -5.2052E-15  3.4326E-15  6.1774E-16  2.1517E-14
  4.6187E-15 -5.2052E-15  9.1323E-14 -9.4632E-15  2.6235E-15 -1.1324E-14
 -4.9100E-15  3.4326E-15 -9.4632E-15  1.9927E-15  1.7040E-16  7.5324E-15
 -5.4862E-14  6.1774E-16  2.6235E-15  1.7040E-16  5.5062E-14  3.2318E-15
 -3.2900E-14  2.1517E-14 -1.1324E-14  7.5324E-15  3.2318E-15  4.7290E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.848958  116.298486   -1.000128   -0.003335   -0.028227  2453109.643396
# Heliocentric elements and errors
Epoch:              2453110.5000  =  2004/04/15
Mean Anomaly:            7.46620 +/-     0.001
Argument of Peri:      321.72021 +/-     0.002
Long of Asc Node:      135.44768 +/-     0.000
Inclination:            21.65702 +/-     0.000
Eccentricity:         0.41201260 +/-    0.0000
Semi-Major Axis:     61.82106723 +/-    0.0044
Time of Perihelion: 2449428.3616 +/-       0.6
Perihelion:          36.35000864 +/-    0.0034
Aphelion:            87.29212582 +/-    0.0066
Period (y)              486.0858 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.15435670 +/-    0.0001
Ecliptic Y           32.44703634 +/-    0.0003
Ecliptic Z           -4.40253154 +/-    0.0000
Ecliptic XDOT        -0.00297711 +/-    0.0000
Ecliptic YDOT        -0.00104594 +/-    0.0000
Ecliptic ZDOT         0.00112531 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.96564932 +/-    0.0003
Geocenter to KBO     36.92029285 +/-    0.0003
# Hcoef:  6.67

The following table shows the complete astrometric record for 13AS183. 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 (13AS183) followed by the observatory code and reference code for the source of the astrometry.

2004 04  14.142653 07 47 55.09   +14 09 40.1   22.4V 13AS183   645  C~2aHi      
2004 04  14.143483 07 47 55.09   +14 09 40.1         13AS183   645  C~2aHi      
2004 04  14.145970 07 47 55.09   +14 09 40.1         13AS183   645  C~2aHi      
2004 04  15.140699 07 47 56.24   +14 09 55.3   22.2V 13AS183   645  C~2aHi      
2004 04  15.141528 07 47 56.24   +14 09 55.3         13AS183   645  C~2aHi      
2004 04  15.144016 07 47 56.24   +14 09 55.4         13AS183   645  C~2aHi      
2004 12  12.487948 08 03 04.66   +13 45 24.2   22.6V 13AS183   645  C~2aHi      
2004 12  12.488778 08 03 04.65   +13 45 24.2         13AS183   645  C~2aHi      
2004 12  12.491265 08 03 04.64   +13 45 24.2         13AS183   645  C~2aHi      
2004 12  13.348619 08 03 01.16   +13 45 34.6   22.4V 13AS183   645  C~2aHi      
2004 12  13.349448 08 03 01.16   +13 45 34.7   22.1V 13AS183   645  C~2aHi      
2004 12  13.351936 08 03 01.15   +13 45 34.7   23.0V 13AS183   645  C~2aHi      
2004 12  20.424877 08 02 30.59   +13 47 10.2   22.4V 13AS183   645  C~2aHi      
2004 12  20.425707 08 02 30.59   +13 47 10.2         13AS183   645  C~2aHi      
2004 12  20.428194 08 02 30.58   +13 47 10.2         13AS183   645  C~2aHi      
2011 01  27.53768  08 45 25.107  +15 32 18.38  22.4G 13AS183   F51  C~2rXw      
2011 01  29.35973  08 45 15.538  +15 33 08.32  21.8G 13AS183   F51  C~2rXw      
2012 01  15.56378  08 53 57.714  +15 38 21.48  22.3i 13AS183   F51  C~1w3t      
2012 02  22.43319  08 50 45.256  +15 55 48.64  22.6w 13AS183   F51  C~1w3t      
2013 01  10.53040  09 01 43.858  +15 46 50.14  22.7w 13AS183   F51  C~1w3t      
2013 01  10.54427  09 01 43.765  +15 46 50.87  22.5w 13AS183   F51  C~1w3t      
2013 01  10.55813  09 01 43.700  +15 46 50.85  22.4w 13AS183   F51  C~1w3t      
2013 01  10.57198  09 01 43.629  +15 46 51.09  22.5w 13AS183   F51  C~1w3t      
2013 02  03.34088  08 59 44.292  +15 57 50.71  22.2w 13AS183   F51  C~1w3t      
2013 02  03.35550  08 59 44.211  +15 57 51.22  22.5w 13AS183   F51  C~1w3t      
2013 02  03.37016  08 59 44.138  +15 57 51.62  22.1w 13AS183   F51  C~1w3t      
2013 02  03.38481  08 59 44.072  +15 57 51.96  22.2w 13AS183   F51  C~1w3t      
2013 03  03.25695  08 57 28.724  +16 10 41.76  22.2w 13AS183   F51  C~1w3t      
2013 03  03.27126  08 57 28.646  +16 10 42.01  22.6w 13AS183   F51  C~1w3t      
2013 03  03.28565  08 57 28.615  +16 10 42.73  22.6w 13AS183   F51  C~1w3t      
2013 03  03.30000  08 57 28.533  +16 10 43.03  22.5w 13AS183   F51  C~1w3t      
2013 05  30.27950  08 56 51.856  +16 24 53.75  22.1w 13AS183   F51  C~1w3t      
2014 01  05.45942  09 09 28.624  +15 53 47.05  22.4w 13AS183   F51  C~1w3t      
2014 01  05.47460  09 09 28.559  +15 53 47.12  22.4w 13AS183   F51  C~1w3t      
2014 01  24.38580  09 07 59.491  +16 02 21.15  21.8w 13AS183   F51  C~1w3t      
2014 01  24.39898  09 07 59.406  +16 02 21.74  21.7w 13AS183   F51  C~1w3t      
2014 01  24.41219  09 07 59.355  +16 02 22.29  21.7w 13AS183   F51  C~1w3t      
2014 11  26.56821  09 18 27.275  +15 49 32.52  22.8G 13AS183   F51  C~2rXw      
2015 01  17.41039  09 15 52.689  +16 07 11.51  22.6G 13AS183   F51  C~2rXw      
2015 01  17.42240  09 15 52.642  +16 07 12.12  22.8G 13AS183   F51  C~2rXw      
2015 01  17.43442  09 15 52.598  +16 07 12.32  22.4G 13AS183   F51  C~2rXw      
2015 01  17.44649  09 15 52.531  +16 07 12.68  22.2G 13AS183   F51  C~2rXw      
2015 01  17.57142  09 15 51.952  +16 07 15.80  22.5G 13AS183   F51  C~2rXw      
2015 01  17.58372  09 15 51.856  +16 07 16.59  22.7G 13AS183   F51  C~2rXw      
2015 01  17.59608  09 15 51.806  +16 07 16.84  22.7G 13AS183   F51  C~2rXw      
2015 01  17.60848  09 15 51.750  +16 07 17.21  22.7G 13AS183   F51  C~2rXw      
2015 01  20.37441  09 15 38.541  +16 08 35.92  22.1G 13AS183   F51  C~2rXw      
2015 01  20.38644  09 15 38.479  +16 08 36.18  22.1G 13AS183   F51  C~2rXw      
2015 01  20.39849  09 15 38.428  +16 08 36.63  22.2G 13AS183   F51  C~2rXw      
2015 01  20.41073  09 15 38.366  +16 08 37.02  22.1G 13AS183   F51  C~2rXw      
2015 10  12.62730  09 24 09.337  +15 57 10.30  22.0G 13AS183   F51  C~2rXw      
2015 11  08.59391  09 25 23.308  +15 54 45.48  22.0G 13AS183   F51  C~2rXw      
2016 01  07.59304  09 23 49.452  +16 09 46.07  22.6G 13AS183   F51  C~2rXw      
2016 01  07.60795  09 23 49.391  +16 09 46.78  22.6G 13AS183   F51  C~2rXw      
2016 01  07.62282  09 23 49.305  +16 09 46.72  22.2G 13AS183   F51  C~2rXw      
2016 01  07.63784  09 23 49.244  +16 09 47.15  22.2G 13AS183   F51  C~2rXw      
2016 01  18.44622  09 23 01.788  +16 14 47.53  22.8G 13AS183   F51  C~2rXw      
2016 01  31.36311  09 21 59.109  +16 21 09.13  23.0G 13AS183   F51  C~2rXw      
2016 02  02.38792  09 21 48.925  +16 22 10.29  22.8G 13AS183   F51  C~2rXw      
2016 02  02.39953  09 21 48.875  +16 22 10.47  22.3G 13AS183   F51  C~2rXw      
2016 02  02.41116  09 21 48.812  +16 22 10.93  22.1G 13AS183   F51  C~2rXw      
2016 02  03.40402  09 21 43.809  +16 22 40.76  22.7G 13AS183   F51  C~2rXw      
2016 03  03.29925  09 19 22.594  +16 36 34.33  22.6G 13AS183   F51  C~2rXw      
2016 03  03.31244  09 19 22.554  +16 36 34.72  23.0G 13AS183   F51  C~2rXw      
2016 03  03.32569  09 19 22.532  +16 36 34.70  22.5G 13AS183   F51  C~2rXw      
2016 12  23.61184  09 31 45.166  +16 10 02.97  22.3G 13AS183   F51  C~2rXw      
2016 12  23.62440  09 31 45.137  +16 10 02.92  22.7G 13AS183   F51  C~2rXw      
2016 12  23.63702  09 31 45.104  +16 10 03.29  22.2G 13AS183   F51  C~2rXw      
2016 12  23.64970  09 31 45.066  +16 10 03.41  22.7G 13AS183   F51  C~2rXw      
2017 01  21.65334  09 29 51.220  +16 22 58.89  22.7G 13AS183   F51  C~2rXw      
2017 01  24.42677  09 29 38.087  +16 24 21.98  22.6G 13AS183   F51  C~2rXw      
2017 01  24.64761  09 29 37.040  +16 24 28.68  23.6G 13AS183   F51  C~2rXw      
2017 01  28.38202  09 29 18.916  +16 26 21.79  22.1G 13AS183   F51  C~2rXw      
2017 01  28.39435  09 29 18.849  +16 26 22.26  22.4G 13AS183   F51  C~2rXw      
2017 01  28.40655  09 29 18.798  +16 26 22.72  22.5G 13AS183   F51  C~2rXw      
2017 01  28.41872  09 29 18.740  +16 26 23.09  22.3G 13AS183   F51  C~2rXw      
2017 02  05.63045  09 28 37.932  +16 30 33.70  22.2G 13AS183   F51  C~2rXw      
2017 02  18.48759  09 27 33.746  +16 37 00.32  22.6G 13AS183   F51  C~2rXw      
2017 02  22.35934  09 27 14.844  +16 38 53.27  22.2G 13AS183   F51  C~2rXw      
2017 03  17.24305  09 25 35.063  +16 48 45.85  22.5G 13AS183   F51  C~2rXw      
2017 05  22.25564  09 24 38.208  +16 57 36.14  22.3G 13AS183   F51  C~2rXw      
2017 11  20.57474  09 39 23.981  +16 06 38.52  22.6G 13AS183   F51  C~2rXw      
2018 01  14.56074  09 37 26.510  +16 24 41.18  22.5G 13AS183   F51  C~2rXw      
2018 01  14.57304  09 37 26.455  +16 24 41.39  22.2G 13AS183   F51  C~2rXw      
2018 01  14.58539  09 37 26.387  +16 24 41.68  22.2G 13AS183   F51  C~2rXw      
2018 02  12.35834  09 35 09.611  +16 39 19.88  22.5G 13AS183   F51  C~2rXw      
2018 02  12.37163  09 35 09.540  +16 39 20.27  22.4G 13AS183   F51  C~2rXw      
2018 02  12.38497  09 35 09.463  +16 39 20.67  22.8G 13AS183   F51  C~2rXw      
2018 02  12.39864  09 35 09.408  +16 39 21.32  22.2G 13AS183   F51  C~2rXw      
2018 03  08.27500  09 33 15.966  +16 50 43.81  23.3G 13AS183   F51  C~2rXw      
2018 03  08.28818  09 33 15.928  +16 50 44.17  22.6G 13AS183   F51  C~2rXw      
2018 03  08.30134  09 33 15.871  +16 50 44.57  22.3G 13AS183   F51  C~2rXw      
2018 03  08.31470  09 33 15.820  +16 50 44.73  22.8G 13AS183   F51  C~2rXw      
2018 03  18.26727  09 32 35.254  +16 54 45.12  23.1G 13AS183   F51  C~2rXw      

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    -0.10       0.00    -0.18
  2   0.0000      0.00    -0.11       0.00    -0.19
  3   0.0000      0.00    -0.15       0.00    -0.23
  4   0.0027      0.00    -0.01       0.00    -0.08
  5   0.0027      0.00    -0.03       0.00    -0.09
  6   0.0027      0.00    -0.07       0.00    -0.03
  7   0.6635      0.00     0.28       0.00    -0.05
  8   0.6635      0.00     0.19       0.00    -0.06
  9   0.6635      0.00     0.19       0.00    -0.09
 10   0.6659      0.00    -0.15       0.00     0.00
 11   0.6659      0.00    -0.10       0.00     0.09
 12   0.6659      0.00    -0.09       0.00     0.06
 13   0.6852      0.00    -0.00       0.00     0.13
 14   0.6852      0.00     0.06       0.00     0.12
 15   0.6852      0.00     0.08       0.00     0.08
 16   6.7882      0.00     0.26       0.00     0.02
 17   6.7932      0.00     0.09       0.00     0.00
 18   7.7547      0.00    -0.07       0.00     0.30
 19   7.8584      0.00    -0.03       0.00     0.04
 20   8.7430      0.00     0.30       0.00     0.02
 21   8.7431      0.00    -0.10       0.00     0.39
 22   8.7431      0.00    -0.08       0.00     0.01
 23   8.7431      0.00    -0.16       0.00    -0.11
 24   8.8082      0.00     0.04       0.00     0.08
 25   8.8082      0.00    -0.03       0.00     0.16
 26   8.8083      0.00     0.04       0.00     0.14
 27   8.8083      0.00     0.20       0.00     0.06
 28   8.8846      0.00     0.01       0.00     0.13
 29   8.8847      0.00    -0.22       0.00     0.01
 30   8.8847      0.00     0.25       0.00     0.36
 31   8.8848      0.00    -0.04       0.00     0.29
 32   9.1256      0.00     0.30       0.00    -0.34
 33   9.7285      0.00     0.08       0.00     0.20
 34   9.7285      0.00     0.10       0.00    -0.12
 35   9.7803      0.00     0.05       0.00    -0.18
 36   9.7803      0.00    -0.21       0.00     0.03
 37   9.7803      0.00     0.04       0.00     0.20
 38  10.6186      0.00    -0.03       0.00     0.14
 39  10.7605      0.00    -0.25       0.00    -0.13
 40  10.7605      0.00    -0.09       0.00     0.14
 41  10.7606      0.00     0.11       0.00    -0.00
 42  10.7606      0.00    -0.02       0.00     0.01
 43  10.7609      0.00     0.33       0.00    -0.39
 44  10.7610      0.00    -0.23       0.00     0.06
 45  10.7610      0.00    -0.08       0.00    -0.04
 46  10.7610      0.00    -0.03       0.00    -0.02
 47  10.7686      0.00    -0.05       0.00    -0.02
 48  10.7686      0.00    -0.09       0.00    -0.11
 49  10.7687      0.00     0.03       0.00    -0.00
 50  10.7687      0.00     0.00       0.00     0.03
 51  11.4948      0.00    -0.09       0.00    -0.42
 52  11.5687      0.00    -0.91       0.00    -0.28
 53  11.7329      0.00     0.01       0.00     0.01
 54  11.7330      0.00     0.03       0.00     0.32
 55  11.7330      0.00    -0.33       0.00    -0.13
 56  11.7330      0.00    -0.30       0.00    -0.10
 57  11.7626      0.00     0.14       0.00     0.05
 58  11.7980      0.00     0.13       0.00    -0.07
 59  11.8035      0.00    -0.12       0.00     0.19
 60  11.8036      0.00     0.02       0.00     0.02
 61  11.8036      0.00    -0.03       0.00     0.13
 62  11.8063      0.00    -0.05       0.00     0.07
 63  11.8854      0.00    -0.78       0.00     0.20
 64  11.8855      0.00    -0.48       0.00     0.24
 65  11.8855      0.00     0.09       0.00    -0.13
 66  12.6940      0.00    -0.22       0.00     0.29
 67  12.6940      0.00    -0.09       0.00    -0.04
 68  12.6940      0.00    -0.02       0.00     0.04
 69  12.6941      0.00    -0.01       0.00    -0.12
 70  12.7735      0.00     0.09       0.00    -0.13
 71  12.7811      0.00     0.17       0.00    -0.18
 72  12.7817      0.00     0.61       0.00    -0.11
 73  12.7919      0.00     0.02       0.00    -0.14
 74  12.7919      0.00    -0.06       0.00    -0.04
 75  12.7920      0.00     0.08       0.00     0.04
 76  12.7920      0.00     0.12       0.00     0.04
 77  12.8145      0.00    -0.03       0.00    -0.00
 78  12.8497      0.00     0.21       0.00    -0.17
 79  12.8603      0.00     0.04       0.00     0.20
 80  12.9229      0.00    -0.07       0.00     0.03
 81  13.1037      0.00     0.16       0.00     0.10
 82  13.6028      0.00     0.14       0.00    -0.16
 83  13.7534      0.00     0.13       0.00     0.02
 84  13.7534      0.00     0.11       0.00    -0.13
 85  13.7534      0.00    -0.11       0.00    -0.19
 86  13.8322      0.00     0.13       0.00    -0.11
 87  13.8322      0.00     0.07       0.00    -0.13
 88  13.8323      0.00    -0.07       0.00    -0.14
 89  13.8323      0.00     0.15       0.00     0.09
 90  13.8977      0.00    -0.16       0.00    -0.01
 91  13.8977      0.00     0.15       0.00     0.01
 92  13.8978      0.00     0.17       0.00     0.07
 93  13.8978      0.00     0.29       0.00    -0.12
 94  13.9251      0.00    -0.18       0.00     0.08

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.

13AS183    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        61.671    61.671    61.671
ecceobj         0.411     0.411     0.411
incobj         21.705    21.705    21.705
qmin           35.376    35.294    35.367
qmax           88.249    88.381    88.358
amean          61.230    61.246    61.229
amin           60.547    60.500    60.547
amax           62.208    62.238    62.156
emean           0.406     0.406     0.406
emin            0.393     0.390     0.392
emax            0.421     0.423     0.422
imean          20.351    20.353    20.405
imin           19.790    19.671    19.696
imax           20.971    21.199    21.040
excite_mean     0.535     0.535     0.535
fracstop        1.000     1.000     1.000
cjmean          2.936     2.936     2.935

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       161.5     160.0     161.4
kozaiamp        180.0     180.0     180.0