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: 15NY53
# Created Sun Oct 19 01:11:03 2025
# Orbit generated from Bernstein formalism
# Fitting 17 observations of 17
# Arc: 8.10d
# First observation: 2015/07/15
# Last observation: 2015/07/23
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.057232 0.000001 0.012483 0.036766 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 10.53 DOF: 29 RMS: 0.14
# Min/Max residuals: -0.27 0.27
# Exact a, adot, b, bdot, g, gdot:
2.330302E-05 5.191738E-02 6.735731E-06 1.315620E-02 3.548853E-02 -2.339065E-03
# Covariance matrix:
1.4461E-12 2.7702E-09 -1.9855E-13 -3.8766E-10 6.3160E-10 5.1535E-09
2.7702E-09 7.0375E-06 -5.0047E-10 -9.7908E-07 1.5934E-06 1.1479E-05
-1.9855E-13 -5.0047E-10 3.7608E-13 5.2034E-11 -1.1340E-10 -9.5842E-10
-3.8766E-10 -9.7908E-07 5.2034E-11 1.3750E-07 -2.2165E-07 -1.4612E-06
6.3160E-10 1.5934E-06 -1.1340E-10 -2.2165E-07 3.6091E-07 2.7575E-06
5.1535E-09 1.1479E-05 -9.5842E-10 -1.4612E-06 2.7575E-06 3.4402E-04
# lat0 lon0 xBary yBary zBary JD0
8.203141 -19.362789 0.756454 0.097207 -0.673656 2457218.938919
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 358.47405 +/- 7.365
Argument of Peri: 39.43159 +/- 48.801
Long of Asc Node: 310.75096 +/- 1.912
Inclination: 16.49541 +/- 0.958
Eccentricity: 0.66503262 +/- 0.0874
Semi-Major Axis: 85.62640176 +/- 18.5115
Time of Perihelion: 2458437.2299 +/- 5907.1
Perihelion: 28.68205111 +/- 9.7221
Aphelion: 142.57075240 +/- 31.7188
Period (y) 792.3549 +/- 256.95
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 26.70037839 +/- 0.4454
Ecliptic Y -10.18581690 +/- 0.1565
Ecliptic Z 4.02079215 +/- 0.0681
Ecliptic XDOT 0.00102054 +/- 0.0013
Ecliptic YDOT 0.00387969 +/- 0.0005
Ecliptic ZDOT 0.00097890 +/- 0.0002
# Distances at JD0 (AU)
Heliocenter to KBO 28.85875676 +/- 0.4159
Geocenter to KBO 28.17811964 +/- 0.4770
# Hcoef: 9.47
The following table shows the complete astrometric record for 15NY53. 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 (15NY53) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.43813 22 36 07.87 +00 01 17.6 24.6r 15NY53 T09 C~90Hh 2015 07 15.46513 22 36 07.77 +00 01 17.8 24.6r 15NY53 T09 C~90Hh 2015 07 15.50197 22 36 07.61 +00 01 17.8 24.0r 15NY53 T09 C~90Hh 2015 07 15.52198 22 36 07.53 +00 01 17.8 24.6r 15NY53 T09 C~90Hh 2015 07 21.43097 22 35 43.30 +00 00 58.0 24.0i 15NY53 T09 C~90Hh 2015 07 21.47095 22 35 43.11 +00 00 57.6 23.9i 15NY53 T09 C~90Hh 2015 07 21.50079 22 35 42.98 +00 00 57.5 24.2i 15NY53 T09 C~90Hh 2015 07 21.60369 22 35 42.50 +00 00 56.8 24.2i 15NY53 T09 C~90Hh 2015 07 22.41099 22 35 38.98 +00 00 51.9 23.6z 15NY53 T09 C~90Hh 2015 07 22.43280 22 35 38.86 +00 00 51.9 23.7z 15NY53 T09 C~90Hh 2015 07 22.45169 22 35 38.79 +00 00 51.9 23.8z 15NY53 T09 C~90Hh 2015 07 22.51114 22 35 38.52 +00 00 51.4 23.8z 15NY53 T09 C~90Hh 2015 07 23.41460 22 35 34.45 +00 00 45.4 23.4y 15NY53 T09 C~90Hh 2015 07 23.44064 22 35 34.34 +00 00 45.4 23.4y 15NY53 T09 C~90Hh 2015 07 23.46338 22 35 34.21 +00 00 45.2 23.5y 15NY53 T09 C~90Hh 2015 07 23.50977 22 35 34.03 +00 00 44.7 24.0y 15NY53 T09 C~90Hh 2015 07 23.53710 22 35 33.89 +00 00 44.5 23.7y 15NY53 T09 C~90Hh
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 -0.04 0.00 -0.18
2 0.0001 -1.32 0.13 0.75 -0.00
3 0.0002 -3.54 -0.06 1.65 0.12
4 0.0002 -4.65 -0.07 2.10 0.14
5 0.0164 -348.97 0.20 120.14 0.02
6 0.0165 -351.76 -0.02 120.84 -0.08
7 0.0166 -353.61 0.06 121.48 -0.04
8 0.0169 -360.54 -0.22 123.53 -0.06
9 0.0191 -411.32 0.09 138.81 -0.24
10 0.0192 -412.99 -0.15 139.48 0.01
11 0.0192 -413.96 0.12 139.88 0.03
12 0.0194 -417.91 0.10 140.93 -0.10
13 0.0218 -476.75 -0.13 158.28 0.06
14 0.0219 -478.28 0.09 158.90 0.17
15 0.0220 -480.16 -0.27 159.45 0.27
16 0.0221 -482.85 0.17 160.00 -0.09
17 0.0222 -484.87 -0.01 160.60 -0.02
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.
15NY53 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0