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: 02PP149
# Created Sun Dec 22 02:08:23 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 19 observations of 20
# Arc: 17.15y
# First observation: 2000/07/31
# Last observation: 2017/09/23
# Chi-squared of fit: 85.43 DOF: 32 RMS: 0.37
# Min/Max residuals: -0.90 0.71
# Exact a, adot, b, bdot, g, gdot:
1.493222E-05 2.286443E-02 -8.091334E-06 -1.582688E-02 2.666818E-02 2.087928E-03
# Covariance matrix:
3.6663E-13 -1.5029E-14 -4.6641E-14 2.1637E-14 6.7075E-13 -7.4049E-14
-1.5029E-14 2.6221E-14 2.7478E-14 -1.2689E-14 1.6431E-13 4.4455E-14
-4.6641E-14 2.7478E-14 1.9452E-13 -3.2286E-14 4.4373E-14 6.5774E-14
2.1637E-14 -1.2689E-14 -3.2286E-14 1.0915E-14 -2.0170E-14 -3.0406E-14
6.7075E-13 1.6431E-13 4.4373E-14 -2.0170E-14 3.3076E-12 7.6296E-14
-7.4049E-14 4.4455E-14 6.5774E-14 -3.0406E-14 7.6296E-14 1.0594E-13
# lat0 lon0 xBary yBary zBary JD0
2.694127 -23.425919 0.485291 0.041730 -0.890269 2451756.825523
# Heliocentric elements and errors
Epoch: 2451756.5000 = 2000/07/31
Mean Anomaly: 40.50650 +/- 0.078
Argument of Peri: 127.62940 +/- 0.094
Long of Asc Node: 159.66669 +/- 0.000
Inclination: 34.67940 +/- 0.000
Eccentricity: 0.08924082 +/- 0.0002
Semi-Major Axis: 41.02559113 +/- 0.0119
Time of Perihelion: 2440957.0181 +/- 21.4
Perihelion: 37.36443366 +/- 0.0125
Aphelion: 44.68674859 +/- 0.0144
Period (y) 262.7789 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.99997235 +/- 0.0023
Ecliptic Y -15.68621634 +/- 0.0010
Ecliptic Z 1.76223131 +/- 0.0001
Ecliptic XDOT 0.00119264 +/- 0.0000
Ecliptic YDOT 0.00204395 +/- 0.0000
Ecliptic ZDOT -0.00161282 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.39476468 +/- 0.0022
Geocenter to KBO 37.49786265 +/- 0.0026
# Hcoef: 6.95
The following table shows the complete astrometric record for 02PP149. 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 (02PP149) followed by the observatory code and reference code for the source of the astrometry.
2000 07 31.32478 22 29 16.53 -06 35 40.1 22.9R 02PP149 807 Ch1309 2000 07 31.40464 22 29 16.20 -06 35 42.7 02PP149 807 Ch1309 2000 08 27.14216 22 27 13.00 -06 51 32.4 22.2R 02PP149 807 Ch1309 2000 08 27.21448 22 27 12.68 -06 51 35.0 02PP149 807 Ch1309 2002 08 11.33940 22 40 59.56 -07 24 19.8 21.8R 02PP149 807 Cg3357 2002 08 12.30468 22 40 55.22 -07 24 54.8 02PP149 807 Cg3357 2002 08 12.38292 22 40 54.72 -07 24 57.4 02PP149 807 Cg3357 2003 09 06.15565 22 45 12.53 -08 01 19.9 23.2R 02PP149 304 Ci4537 2003 09 06.20869 22 45 12.28 -08 01 22.0 02PP149 304 Ci4537 2005 08 29.35080 22 58 12.30 -08 37 10.9 22.5R 02PP149 250 S~06AW 2005 08 29.35751 22 58 12.26 -08 37 11.2 02PP149 250 S~06AX 2005 08 29.36423 22 58 12.23 -08 37 11.5 02PP149 250 S~06AX 2006 08 22.25005 23 04 57.53 -08 51 57.2 21.9R 02PP149 807 Cs2529 2006 08 23.17462 23 04 53.33 -08 52 32.8 02PP149 807 Cs2529 2006 08 23.24187 23 04 53.02 -08 52 35.4 02PP149 807 Cs2529 2010 09 17.23863 23 27 35.60 -10 22 11.3 22.1R 02PP149 688 C~0NFk 2010 09 17.28378 23 27 35.35 -10 22 13.2 02PP149 688 C~0NFk 2017 09 23.33587 00 09 38.72 -12 15 44.4 23.0R 02PP149 G37 C~2LPo 2017 09 23.38991 00 09 38.41 -12 15 46.0 02PP149 G37 C~2LPo 2017 09 23.42765 00 09 38.23 -12 15 48.9 02PP149 G37 C~2LPo
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 -0.17 0.00 -0.35
2 0.0002 0.00 -0.03 0.00 -0.40
3 0.0734 0.00 -0.13 0.00 -0.34
4 0.0736 0.00 0.41 0.00 -0.20
5 2.0288 0.00 0.23 0.00 0.44
6 2.0314 0.00 -0.21 0.00 0.13
7 2.0316 0.00 ( -2.36) 0.00 ( 0.34)
8 3.0988 0.00 -0.61 0.00 0.23
9 3.0989 0.00 -0.47 0.00 0.18
10 5.0788 0.00 0.71 0.00 0.00
11 5.0788 0.00 0.59 0.00 -0.04
12 5.0788 0.00 0.62 0.00 -0.07
13 6.0587 0.00 -0.27 0.00 0.02
14 6.0612 0.00 -0.12 0.00 0.45
15 6.0614 0.00 -0.08 0.00 0.48
16 10.1298 0.00 0.25 0.00 -0.17
17 10.1299 0.00 -0.24 0.00 -0.34
18 17.1472 0.00 0.48 0.00 0.12
19 17.1473 0.00 -0.28 0.00 0.57
20 17.1474 0.00 -0.27 0.00 -0.90
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.
02PP149 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.093 41.093 41.093 ecceobj 0.091 0.091 0.091 incobj 34.654 34.654 34.654 qmin 36.731 36.716 36.734 qmax 45.461 45.462 45.425 amean 40.995 40.984 40.979 amin 40.678 40.667 40.647 amax 41.341 41.336 41.322 emean 0.087 0.088 0.087 emin 0.075 0.075 0.074 emax 0.100 0.101 0.100 imean 33.892 33.890 33.892 imin 33.613 33.612 33.607 imax 34.215 34.207 34.213 excite_mean 0.564 0.564 0.564 fracstop 1.000 1.000 1.000 cjmean 2.665 2.665 2.665 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 186.8 185.7 186.5 kozaiamp 180.0 180.0 180.0