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: 03QM91 # Created Fri Apr 26 01:11:27 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 58 observations of 58 # Arc: 17.14y # First observation: 2003/08/25 # Last observation: 2020/10/15 # Chi-squared of fit: 20.45 DOF: 110 RMS: 0.10 # Min/Max residuals: -0.42 0.29 # Exact a, adot, b, bdot, g, gdot: 1.709159E-05 2.461024E-02 5.977739E-07 1.260137E-03 2.472546E-02 -2.164454E-04 # Covariance matrix: 2.9650E-13 -4.0239E-14 3.0850E-15 -1.2098E-15 2.1240E-14 -5.7820E-14 -4.0239E-14 1.2341E-14 -1.4375E-15 5.5664E-16 1.3100E-14 2.6501E-14 3.0850E-15 -1.4375E-15 2.2754E-13 -1.8494E-14 -1.4759E-15 -3.5900E-15 -1.2098E-15 5.5664E-16 -1.8494E-14 1.6933E-15 5.4183E-16 1.3924E-15 2.1240E-14 1.3100E-14 -1.4759E-15 5.4183E-16 1.0995E-13 2.5356E-14 -5.7820E-14 2.6501E-14 -3.5900E-15 1.3924E-15 2.5356E-14 6.6323E-14 # lat0 lon0 xBary yBary zBary JD0 -0.860736 -7.466299 0.362537 -0.014177 -0.948053 2452876.866633 # Heliocentric elements and errors Epoch: 2452876.5000 = 2003/08/25 Mean Anomaly: 333.65422 +/- 0.025 Argument of Peri: 12.54459 +/- 0.027 Long of Asc Node: 8.02110 +/- 0.000 Inclination: 3.05165 +/- 0.000 Eccentricity: 0.04137537 +/- 0.0000 Semi-Major Axis: 42.96833896 +/- 0.0023 Time of Perihelion: 2460405.3711 +/- 10.4 Perihelion: 41.19050814 +/- 0.0027 Aphelion: 44.74616978 +/- 0.0028 Period (y) 281.6638 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.98698602 +/- 0.0005 Ecliptic Y -5.73320494 +/- 0.0001 Ecliptic Z -0.60755852 +/- 0.0000 Ecliptic XDOT 0.00032717 +/- 0.0000 Ecliptic YDOT 0.00269910 +/- 0.0000 Ecliptic ZDOT 0.00014005 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.39049154 +/- 0.0005 Geocenter to KBO 40.44416828 +/- 0.0005 # Hcoef: 6.39
The following table shows the complete astrometric record for 03QM91. 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 (03QM91) followed by the observatory code and reference code for the source of the astrometry.
2003 08 25.36589 23 33 56.24 -03 45 12.8 20.0R 03QM91 807 Ci4137 2003 08 26.28761 23 33 52.41 -03 45 37.2 03QM91 807 Ci4137 2003 08 26.39198 23 33 51.98 -03 45 39.9 03QM91 807 Ci4137 2003 10 22.14651 23 29 50.38 -04 10 37.4 22.2R 03QM91 695 Cj4699 2003 10 22.23381 23 29 50.07 -04 10 39.4 03QM91 695 Cj4699 2013 09 08.19297 00 23 43.856 +02 26 18.19 23.7g 03QM91 W84 C~4yD1 2013 09 08.19297 00 23 43.85 +02 26 18.2 23.9g 03QM91 W84 C~3cWO 2013 09 09.201343 00 23 39.59 +02 25 51.2 23.4g 03QM91 W84 C~351P 2013 09 11.30726 00 23 30.643 +02 24 55.30 23.3g 03QM91 W84 C~4yD1 2013 09 11.30726 00 23 30.66 +02 24 55.3 23.6g 03QM91 W84 C~3cWO 2013 09 28.10761 00 22 15.797 +02 17 04.64 23.1g 03QM91 W84 C~4yD1 2013 09 28.10761 00 22 15.80 +02 17 04.6 23.3g 03QM91 W84 C~3cWO 2013 09 30.154525 00 22 06.47 +02 16 06.2 22.4r 03QM91 W84 C~351P 2013 09 30.15804 00 22 06.453 +02 16 06.07 22.1i 03QM91 W84 C~4yD1 2013 09 30.15804 00 22 06.45 +02 16 06.1 22.2i 03QM91 W84 C~3cWO 2013 10 03.09360 00 21 53.116 +02 14 42.36 23.1g 03QM91 W84 C~4yD1 2013 10 03.09360 00 21 53.12 +02 14 42.3 23.6g 03QM91 W84 C~3cWO 2013 10 04.15441 00 21 48.299 +02 14 12.07 22.9g 03QM91 W84 C~4yD1 2013 10 04.15441 00 21 48.30 +02 14 12.1 23.3g 03QM91 W84 C~3cWO 2013 10 13.09473 00 21 08.327 +02 10 01.19 21.8z 03QM91 W84 C~4yD1 2013 10 13.09473 00 21 08.33 +02 10 01.2 22.0z 03QM91 W84 C~3cWO 2013 10 13.11927 00 21 08.216 +02 10 00.52 22.1i 03QM91 W84 C~4yD1 2013 10 13.11927 00 21 08.22 +02 10 00.5 22.1i 03QM91 W84 C~3cWO 2013 11 22.07262 00 18 48.213 +01 55 31.03 22.4r 03QM91 W84 C~4yD1 2013 11 22.07262 00 18 48.21 +01 55 31.0 22.5r 03QM91 W84 C~3cWO 2013 11 22.07399 00 18 48.207 +01 55 31.02 22.4i 03QM91 W84 C~4yD1 2013 11 22.07399 00 18 48.21 +01 55 31.0 22.5i 03QM91 W84 C~3cWO 2013 11 23.09414 00 18 45.95 +01 55 17.3 22.1i 03QM91 W84 C~3cWO 2014 10 29.13917 00 25 07.887 +02 40 57.70 21.9z 03QM91 W84 C~4yD1 2014 10 29.13917 00 25 07.89 +02 40 57.7 22.2z 03QM91 W84 C~3cWO 2014 11 13.09322 00 24 15.810 +02 35 34.01 22.1z 03QM91 W84 C~4yD1 2014 11 13.09322 00 24 15.81 +02 35 34.0 22.1z 03QM91 W84 C~3cWO 2016 08 14.255914 00 40 25.94 +04 27 49.7 21.9z 03QM91 W84 C~351P 2016 08 14.25644 00 40 25.950 +04 27 49.58 22.3z 03QM91 W84 C~4yD1 2016 09 09.29019 00 38 55.877 +04 18 39.64 22.4i 03QM91 W84 C~4yD1 2016 09 09.29019 00 38 55.88 +04 18 39.6 22.4i 03QM91 W84 C~3cWO 2016 09 09.29156 00 38 55.876 +04 18 39.60 22.5r 03QM91 W84 C~4yD1 2016 09 09.29156 00 38 55.88 +04 18 39.6 22.5r 03QM91 W84 C~3cWO 2016 09 09.29293 00 38 55.862 +04 18 39.49 23.5g 03QM91 W84 C~4yD1 2016 09 09.29293 00 38 55.86 +04 18 39.5 23.5g 03QM91 W84 C~3cWO 2016 09 11.17435 00 38 48.070 +04 17 51.75 21.9z 03QM91 W84 C~4yD1 2016 09 11.17435 00 38 48.07 +04 17 51.7 22.0z 03QM91 W84 C~3cWO 2016 11 08.14735 00 34 38.843 +03 52 04.82 22.5i 03QM91 W84 C~4yD1 2016 11 08.14735 00 34 38.84 +03 52 04.8 22.5i 03QM91 W84 C~3cWO 2016 11 08.14874 00 34 38.839 +03 52 04.70 22.2z 03QM91 W84 C~4yD1 2016 11 08.14874 00 34 38.84 +03 52 04.8 22.2z 03QM91 W84 C~3cWO 2016 11 26.11142 00 33 46.695 +03 46 42.59 22.5r 03QM91 W84 C~4yD1 2016 11 26.11142 00 33 46.69 +03 46 42.6 22.4r 03QM91 W84 C~3cWO 2016 11 30.09280 00 33 38.364 +03 45 51.83 22.2i 03QM91 W84 C~4yD1 2016 11 30.09280 00 33 38.36 +03 45 51.9 22.4i 03QM91 W84 C~3cWO 2016 11 30.09417 00 33 38.363 +03 45 51.78 22.9g 03QM91 W84 C~4yD1 2016 11 30.09417 00 33 38.36 +03 45 51.8 23.0g 03QM91 W84 C~3cWO 2017 09 27.26238 00 42 45.454 +04 48 10.30 22.2i 03QM91 W84 C~4yD1 2017 09 27.26376 00 42 45.448 +04 48 10.31 22.6r 03QM91 W84 C~4yD1 2017 09 27.26512 00 42 45.440 +04 48 10.33 23.6g 03QM91 W84 C~4yD1 2020 10 15.34187 00 56 47.776 +06 31 23.72 22.3w 03QM91 F51 C~49MH 2020 10 15.35295 00 56 47.724 +06 31 23.14 22.6w 03QM91 F51 C~49MH 2020 10 15.36406 00 56 47.670 +06 31 23.23 22.4w 03QM91 F51 C~49MH
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 -0.27 0.00 -0.07
2 0.0025 0.00 -0.08 0.00 0.04
3 0.0028 0.00 0.14 0.00 0.12
4 0.1582 0.00 0.08 0.00 0.15
5 0.1584 0.00 0.05 0.00 -0.06
6 10.0392 0.00 -0.10 0.00 0.06
7 10.0392 0.00 -0.19 0.00 0.07
8 10.0420 0.00 -0.42 0.00 -0.29
9 10.0478 0.00 0.00 0.00 0.11
10 10.0478 0.00 0.26 0.00 0.11
11 10.0937 0.00 0.17 0.00 -0.17
12 10.0937 0.00 0.12 0.00 -0.13
13 10.0994 0.00 0.03 0.00 -0.03
14 10.0994 0.00 -0.03 0.00 -0.03
15 10.0994 0.00 0.02 0.00 -0.06
16 10.1074 0.00 0.19 0.00 0.01
17 10.1074 0.00 0.13 0.00 0.07
18 10.1103 0.00 0.15 0.00 0.03
19 10.1103 0.00 0.13 0.00 0.00
20 10.1348 0.00 0.11 0.00 -0.07
21 10.1348 0.00 0.07 0.00 -0.08
22 10.1348 0.00 0.11 0.00 -0.09
23 10.1348 0.00 0.05 0.00 -0.07
24 10.2442 0.00 -0.04 0.00 -0.07
25 10.2442 0.00 0.01 0.00 -0.04
26 10.2442 0.00 0.01 0.00 -0.06
27 10.2442 0.00 -0.04 0.00 -0.04
28 10.2470 0.00 0.01 0.00 -0.09
29 11.1780 0.00 -0.00 0.00 0.13
30 11.1780 0.00 -0.05 0.00 0.13
31 11.2190 0.00 0.05 0.00 -0.04
32 11.2190 0.00 0.05 0.00 -0.05
33 12.9716 0.00 -0.19 0.00 0.09
34 12.9716 0.00 -0.02 0.00 -0.02
35 13.0429 0.00 0.03 0.00 -0.01
36 13.0429 0.00 -0.01 0.00 0.03
37 13.0429 0.00 0.12 0.00 0.02
38 13.0429 0.00 0.06 0.00 0.02
39 13.0429 0.00 -0.09 0.00 -0.05
40 13.0429 0.00 -0.06 0.00 -0.06
41 13.0481 0.00 -0.05 0.00 0.24
42 13.0481 0.00 -0.05 0.00 0.29
43 13.2068 0.00 -0.06 0.00 0.00
44 13.2068 0.00 -0.02 0.00 0.02
45 13.2068 0.00 0.01 0.00 0.03
46 13.2068 0.00 -0.00 0.00 -0.07
47 13.2560 0.00 -0.09 0.00 -0.08
48 13.2560 0.00 -0.02 0.00 -0.09
49 13.2669 0.00 -0.11 0.00 0.09
50 13.2669 0.00 -0.05 0.00 0.02
51 13.2669 0.00 -0.06 0.00 0.01
52 13.2669 0.00 -0.02 0.00 -0.01
53 14.0914 0.00 0.01 0.00 0.01
54 14.0914 0.00 0.02 0.00 0.06
55 14.0914 0.00 -0.01 0.00 0.12
56 17.1416 0.00 0.07 0.00 0.03
57 17.1416 0.00 0.06 0.00 -0.25
58 17.1417 0.00 0.03 0.00 0.15
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.
03QM91 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.418 43.418 43.418 ecceobj 0.050 0.050 0.051 incobj 3.036 3.036 3.036 qmin 40.084 40.085 40.084 qmax 46.458 46.452 46.463 amean 43.183 43.183 43.183 amin 42.850 42.849 42.847 amax 43.530 43.534 43.532 emean 0.050 0.050 0.050 emin 0.029 0.029 0.029 emax 0.068 0.068 0.068 imean 2.954 2.955 2.954 imin 1.944 1.945 1.945 imax 3.916 3.915 3.916 excite_mean 0.072 0.072 0.072 fracstop 1.000 1.000 1.000 cjmean 3.085 3.085 3.085 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 180.0 180.1 180.2 kozaiamp 179.9 180.0 180.0