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: 23VQ17
# Created Sun Oct 19 01:12:25 2025
# Orbit generated from Bernstein formalism
# Fitting 28 observations of 29
# Arc: 1.29y
# First observation: 2023/11/11
# Last observation: 2025/02/23
Preliminary a, adot, b, bdot, g, gdot:
0.001180 0.135208 0.000042 0.033559 0.076252 0.000000
# Chi-squared of fit: 38.79 DOF: 50 RMS: 0.21
# Min/Max residuals: -0.74 0.54
# Exact a, adot, b, bdot, g, gdot:
2.911487E-05 1.348423E-01 8.201284E-06 3.357130E-02 7.172874E-02 -1.713646E-02
# Covariance matrix:
1.9988E-13 4.2047E-12 -3.6825E-14 1.2202E-12 1.3421E-12 3.3113E-11
4.2047E-12 2.4109E-10 -2.1504E-12 6.9416E-11 6.2278E-11 1.9171E-09
-3.6825E-14 -2.1504E-12 8.8168E-14 -6.8881E-13 -5.5042E-13 -1.7142E-11
1.2202E-12 6.9416E-11 -6.8881E-13 2.0306E-11 1.7903E-11 5.5284E-10
1.3421E-12 6.2278E-11 -5.5042E-13 1.7903E-11 1.7125E-11 4.9192E-10
3.3113E-11 1.9171E-09 -1.7142E-11 5.5284E-10 4.9192E-10 1.5277E-08
# lat0 lon0 xBary yBary zBary JD0
7.995629 50.218879 0.028062 0.136489 -0.972971 2460259.824353
# Heliocentric elements and errors
Epoch: 2460250.5000 = 2023/11/02
Mean Anomaly: 352.14641 +/- 0.048
Argument of Peri: 51.78570 +/- 0.153
Long of Asc Node: 22.40839 +/- 0.001
Inclination: 15.75428 +/- 0.001
Eccentricity: 0.45835961 +/- 0.0004
Semi-Major Axis: 26.85043646 +/- 0.0122
Time of Perihelion: 2461359.1410 +/- 6.8
Perihelion: 14.54328093 +/- 0.0127
Aphelion: 39.15759199 +/- 0.0208
Period (y) 139.1346 +/- 0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 9.49189119 +/- 0.0005
Ecliptic Y 11.34961750 +/- 0.0006
Ecliptic Z 1.93929329 +/- 0.0001
Ecliptic XDOT -0.00448828 +/- 0.0000
Ecliptic YDOT 0.00266602 +/- 0.0000
Ecliptic ZDOT 0.00117800 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 14.92215381 +/- 0.0006
Geocenter to KBO 13.94141356 +/- 0.0008
# Hcoef: 10.35
The following table shows the complete astrometric record for 23VQ17. 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 (23VQ17) followed by the observatory code and reference code for the source of the astrometry.
2023 11 11.323552 03 01 39.742 +25 29 20.29 21.9G 23VQ17 V00 C~7XVT 2023 11 11.329687 03 01 39.648 +25 29 20.44 22.3G 23VQ17 V00 C~7XVT 2023 11 11.335796 03 01 39.565 +25 29 19.97 21.9G 23VQ17 V00 C~7XVT 2023 11 11.341908 03 01 39.511 +25 29 19.82 21.9G 23VQ17 V00 C~7XVT 2023 11 18.323198 03 00 07.667 +25 25 19.42 22.2w 23VQ17 F52 C~7XVT 2023 11 18.336265 03 00 07.485 +25 25 18.84 21.8w 23VQ17 F52 C~7XVT 2023 11 18.349318 03 00 07.310 +25 25 18.51 21.8w 23VQ17 F52 C~7XVT 2023 11 20.18051 02 59 43.52 +25 24 10.8 22.2R 23VQ17 291 C~7XVT 2023 11 20.20984 02 59 43.13 +25 24 09.3 23VQ17 291 C~7XVT 2023 11 20.23694 02 59 42.74 +25 24 08.1 23VQ17 291 C~7XVT 2023 11 21.16310 02 59 30.84 +25 23 33.5 22.0G 23VQ17 291 C~7XVT 2023 11 21.18408 02 59 30.59 +25 23 32.9 22.0G 23VQ17 291 C~7XVT 2023 11 23.167574 02 59 05.180 +25 22 17.00 21.9G 23VQ17 I52 C~7XVT 2023 11 23.178332 02 59 05.010 +25 22 16.90 21.8G 23VQ17 I52 C~7XVT 2023 11 23.189088 02 59 04.880 +25 22 16.30 21.4G 23VQ17 I52 C~7XVT 2023 12 03.27873 02 57 01.56 +25 15 28.9 22.0R 23VQ17 291 C~7XVT 2023 12 03.32396 02 57 01.04 +25 15 27.0 21.8R 23VQ17 291 C~7XVT 2023 12 03.36311 02 57 00.58 +25 15 24.9 21.8R 23VQ17 291 C~7XVT 2023 12 04.08357 02 56 52.32 +25 14 55.0 22.1G 23VQ17 291 C~7XVT 2023 12 04.09709 02 56 52.18 +25 14 54.6 21.8G 23VQ17 291 C~7XVT 2023 12 04.11064 02 56 52.01 +25 14 53.9 22.2G 23VQ17 291 C~7XVT 2023 12 16.87754 02 54 38.61 +25 06 06.5 21.5G 23VQ17 A05 C~7bVp 2023 12 16.90414 02 54 38.36 +25 06 05.0 21.6G 23VQ17 A05 C~7bVp 2023 12 16.93052 02 54 38.11 +25 06 04.0 21.4G 23VQ17 A05 C~7bVp 2024 12 03.432488 03 28 31.324 +29 10 40.44 22.2w 23VQ17 F52 C~953V 2024 12 03.443392 03 28 31.179 +29 10 39.88 21.9w 23VQ17 F52 C~953V 2024 12 03.454233 03 28 31.037 +29 10 39.63 21.9w 23VQ17 F52 C~953V 2025 02 23.107830 03 23 37.971 +28 32 38.48 22.2G 23VQ17 G37 C~953V 2025 02 23.152400 03 23 38.335 +28 32 38.49 23VQ17 G37 C~953V
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 0.13 0.00 -0.17
2 0.0000 -1.18 0.08 0.50 0.21
3 0.0000 -2.39 -0.01 0.37 -0.04
4 0.0001 -3.13 0.37 0.43 -0.11
5 0.0192 -1264.20 0.13 122.35 -0.12
6 0.0192 -1266.73 -0.01 122.49 -0.19
7 0.0192 -1269.10 0.01 122.85 -0.05
8 0.0242 -1597.36 -0.08 149.84 0.19
9 0.0243 -1602.86 -0.25 149.92 -0.19
10 0.0244 -1608.26 -0.74 150.27 -0.25
11 0.0269 -1772.69 -0.18 163.18 -0.03
12 0.0270 -1776.11 0.19 163.57 0.05
13 0.0324 -2127.81 -0.05 189.41 0.34
14 0.0325 -2130.05 ( -0.36) 189.97 ( 0.75)
15 0.0325 -2131.91 -0.30 189.90 0.54
16 0.0601 -3850.89 -0.09 282.16 0.25
17 0.0602 -3858.20 0.11 282.39 0.19
18 0.0603 -3864.78 0.01 282.19 -0.24
19 0.0623 -3980.74 0.14 286.13 -0.25
20 0.0624 -3982.67 0.42 286.30 -0.18
21 0.0624 -3985.08 0.22 286.30 -0.28
22 0.0973 -5872.17 0.04 311.75 0.37
23 0.0974 -5875.86 -0.07 311.32 -0.04
24 0.0975 -5879.40 -0.06 311.36 0.03
25 1.0626 24277.01 0.02 7359.99 0.07
26 1.0626 24275.00 -0.02 7359.88 -0.08
27 1.0626 24273.11 0.05 7360.06 0.07
28 1.2862 19941.20 -0.05 6030.74 0.05
29 1.2863 19945.90 -0.01 6029.60 -0.12
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.
23VQ17 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 26.610 26.877 26.350 ecceobj 0.454 0.456 0.452 incobj 15.757 15.761 15.753 qmin 14.538 14.204 14.335 qmax 38.985 40.403 38.265 amean 26.619 26.781 26.076 amin 26.355 26.469 25.774 amax 26.905 27.506 26.383 emean 0.435 0.460 0.442 emin 0.425 0.451 0.431 emax 0.455 0.469 0.453 imean 16.228 15.820 15.683 imin 15.635 15.323 15.400 imax 16.692 16.624 16.003 excite_mean 0.517 0.535 0.518 fracstop 0.008 0.005 0.004 cjmean 2.751 2.730 2.757 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 76.2 66.2 63.1 kozaiamp 25.7 14.5 10.7