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: 14UP250
# Created Mon Apr 28 01:10:12 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 5.79y
# First observation: 2014/10/28
# Last observation: 2020/08/12
# Chi-squared of fit: 15.52 DOF: 48 RMS: 0.13
# Min/Max residuals: -0.45 0.36
# Exact a, adot, b, bdot, g, gdot:
1.221006E-05 1.645709E-02 -5.000620E-06 -6.176307E-03 2.049976E-02 6.589283E-03
# Covariance matrix:
1.7022E-13 -8.7078E-14 -1.0864E-14 1.9032E-14 -3.6763E-14 -6.0125E-13
-8.7078E-14 1.0790E-13 1.8698E-14 -3.2911E-14 2.9087E-14 1.0402E-12
-1.0864E-14 1.8698E-14 1.4326E-13 -4.1443E-14 1.1237E-14 2.1296E-13
1.9032E-14 -3.2911E-14 -4.1443E-14 2.6278E-14 -1.8506E-14 -3.7371E-13
-3.6763E-14 2.9087E-14 1.1237E-14 -1.8506E-14 2.9713E-13 5.8107E-13
-6.0125E-13 1.0402E-12 2.1296E-13 -3.7371E-13 5.8107E-13 1.1808E-11
# lat0 lon0 xBary yBary zBary JD0
3.071166 3.261731 -0.513245 0.045859 -0.851380 2456958.663308
# Heliocentric elements and errors
Epoch: 2456958.5000 = 2014/10/28
Mean Anomaly: 61.59038 +/- 0.022
Argument of Peri: 67.77368 +/- 0.015
Long of Asc Node: 191.79194 +/- 0.000
Inclination: 20.90379 +/- 0.000
Eccentricity: 0.36228768 +/- 0.0002
Semi-Major Axis: 52.21498677 +/- 0.0095
Time of Perihelion: 2433380.7936 +/- 10.7
Perihelion: 33.29814052 +/- 0.0108
Aphelion: 71.13183303 +/- 0.0157
Period (y) 377.3123 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 49.45152549 +/- 0.0013
Ecliptic Y 3.33422163 +/- 0.0001
Ecliptic Z 2.61321556 +/- 0.0001
Ecliptic XDOT 0.00079199 +/- 0.0000
Ecliptic YDOT 0.00224205 +/- 0.0000
Ecliptic ZDOT -0.00077644 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 49.63239099 +/- 0.0013
Geocenter to KBO 48.78084847 +/- 0.0013
# Hcoef: 6.11
The following table shows the complete astrometric record for 14UP250. 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 (14UP250) followed by the observatory code and reference code for the source of the astrometry.
2014 10 28.16253 00 07 04.91 +04 06 53.3 22.9r 14UP250 W84 C~3coQ 2014 10 28.16391 00 07 04.899 +04 06 53.33 24.0g 14UP250 W84 C~4yUz 2014 10 28.16809 00 07 04.886 +04 06 53.08 22.7i 14UP250 W84 C~4yUz 2014 10 29.16670 00 07 01.829 +04 06 27.10 22.9r 14UP250 W84 C~4yUz 2014 10 29.17083 00 07 01.814 +04 06 27.06 22.1i 14UP250 W84 C~4yUz 2014 11 13.03961 00 06 22.117 +04 00 31.63 23.6g 14UP250 W84 C~4yUz 2014 11 13.04097 00 06 22.097 +04 00 31.64 22.3i 14UP250 W84 C~4yUz 2014 11 14.04307 00 06 19.861 +04 00 10.08 23.2r 14UP250 W84 C~4yUz 2016 09 11.19680 00 17 49.333 +04 33 54.83 22.4z 14UP250 W84 C~4yUz 2016 09 11.24154 00 17 49.177 +04 33 53.53 22.7i 14UP250 W84 C~4yUz 2016 09 22.13414 00 17 09.067 +04 29 00.28 22.8r 14UP250 W84 C~4yUz 2016 09 22.13551 00 17 09.031 +04 29 00.18 24.1g 14UP250 W84 C~4yUz 2016 12 05.06192 00 13 40.055 +03 59 56.28 22.6i 14UP250 W84 C~4yUz 2016 12 05.07978 00 13 40.043 +03 59 56.07 22.8r 14UP250 W84 C~4yUz 2017 08 22.31356 00 22 47.891 +04 44 14.64 23.5i 14UP250 W84 C~4yUz 2017 08 22.31495 00 22 47.893 +04 44 14.58 23.7g 14UP250 W84 C~4yUz 2017 09 27.17044 00 20 44.815 +04 29 20.86 22.7z 14UP250 W84 C~4yUz 2017 10 22.17470 00 19 14.009 +04 17 49.15 22.7r 14UP250 W84 C~4yUz 2017 10 22.17608 00 19 14.015 +04 17 49.22 22.6i 14UP250 W84 C~4yUz 2017 10 22.17745 00 19 13.996 +04 17 49.02 23.5g 14UP250 W84 C~4yUz 2019 11 01.25065 00 26 22.22 +04 18 51.5 23.8g 14UP250 T09 C~7bK3 2019 11 01.25344 00 26 22.22 +04 18 51.5 24.2g 14UP250 T09 C~7bK3 2019 11 01.31285 00 26 22.04 +04 18 50.0 23.8g 14UP250 T09 C~7bK3 2019 11 01.40287 00 26 21.76 +04 18 48.0 24.0g 14UP250 T09 C~7bK3 2019 11 01.48029 00 26 21.51 +04 18 45.3 24.2g 14UP250 T09 C~7bK3 2020 08 12.351140 00 34 31.527 +04 53 55.17 23.1G 14UP250 G37 C~443e 2020 08 12.421940 00 34 31.389 +04 53 54.03 14UP250 G37 C~443e
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 0.07 0.00 0.08
2 0.0000 0.00 -0.03 0.00 0.15
3 0.0000 0.00 -0.03 0.00 0.01
4 0.0027 0.00 0.02 0.00 -0.01
5 0.0028 0.00 -0.01 0.00 0.06
6 0.0435 0.00 0.17 0.00 -0.03
7 0.0435 0.00 -0.08 0.00 0.01
8 0.0462 0.00 -0.03 0.00 -0.04
9 1.8728 0.00 0.05 0.00 0.04
10 1.8729 0.00 0.16 0.00 -0.10
11 1.9027 0.00 0.10 0.00 0.01
12 1.9027 0.00 -0.36 0.00 -0.06
13 2.1051 0.00 -0.10 0.00 -0.07
14 2.1052 0.00 -0.03 0.00 -0.06
15 2.8177 0.00 -0.07 0.00 0.05
16 2.8177 0.00 0.02 0.00 0.02
17 2.9158 0.00 0.20 0.00 -0.10
18 2.9843 0.00 0.01 0.00 -0.08
19 2.9843 0.00 0.17 0.00 0.03
20 2.9843 0.00 -0.05 0.00 -0.14
21 5.0105 0.00 -0.17 0.00 0.16
22 5.0105 0.00 -0.04 0.00 0.23
23 5.0107 0.00 0.06 0.00 0.17
24 5.0109 0.00 0.10 0.00 0.36
25 5.0111 0.00 -0.03 0.00 -0.45
26 5.7911 0.00 -0.14 0.00 -0.11
27 5.7913 0.00 0.16 0.00 -0.09
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.
14UP250 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 52.677 52.677 52.676 ecceobj 0.363 0.363 0.363 incobj 20.811 20.811 20.811 qmin 32.633 32.358 32.436 qmax 73.593 73.649 73.608 amean 52.586 52.474 52.412 amin 51.807 51.714 51.438 amax 53.421 53.394 53.303 emean 0.355 0.358 0.358 emin 0.329 0.335 0.331 emax 0.379 0.381 0.381 imean 21.458 21.193 21.191 imin 20.374 20.272 20.191 imax 22.426 22.304 22.193 excite_mean 0.510 0.509 0.509 fracstop 1.000 1.000 1.000 cjmean 2.871 2.871 2.871 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 182.6 179.3 181.7 kozaiamp 180.0 180.0 180.0