The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 145451 # Created Fri May 2 02:36:23 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 107 observations of 108 # Arc: 30.04y # First observation: 1976/11/17 # Last observation: 2006/11/30 # Chi-squared of fit: 192.29 DOF: 208 RMS: 0.24 # Min/Max residuals: -0.65 1.61 # Exact a, adot, b, bdot, g, gdot: 1.784755E-05 2.703045E-02 5.728535E-07 -1.989368E-03 2.412794E-02 -1.064533E-02 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -28.811566 -13.874143 -0.921632 -0.168026 -0.305452 2443099.946636 # Heliocentric elements and errors Epoch: 2443100.5000 = 1976/11/18 Mean Anomaly: 348.55599 +/- 0.000 Argument of Peri: 318.15637 +/- 0.000 Long of Asc Node: 84.76729 +/- 0.000 Inclination: 28.76460 +/- 0.000 Eccentricity: 0.61734976 +/- 0.0000 Semi-Major Axis: 91.68628134 +/- 0.0000 Time of Perihelion: 2453294.1723 +/- 0.0 Perihelion: 35.08377753 +/- 0.0000 Aphelion: 148.28878515 +/- 0.0000 Period (y) 877.9398 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.81514041 +/- 0.0000 Ecliptic Y -7.89219020 +/- 0.0000 Ecliptic Z -19.97391665 +/- 0.0000 Ecliptic XDOT -0.00040480 +/- 0.0000 Ecliptic YDOT 0.00326076 +/- 0.0000 Ecliptic ZDOT 0.00038454 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.76112044 +/- 0.0000 Geocenter to KBO 41.44606608 +/- 0.0000 # Hcoef: 4.44
The following table shows the complete astrometric record for 145451. 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 (145451) followed by the observatory code and reference code for the source of the astrometry.
1976 11 17.44609 23 59 42.74 -31 43 04.6 145451 260 x2484 1976 11 17.44609 23 59 42.74 -31 43 04.6 145451 260 x2484 1999 10 13.41757 02 45 02.33 -08 21 32.0 20.0V 145451 705 Cr5138 1999 10 13.42089 02 45 02.32 -08 21 32.1 20.5 145451 705 Cr5138 2000 09 26.41949 02 53 22.22 -06 51 15.2 20.1V 145451 705 Cr5138 2000 09 26.42281 02 53 22.21 -06 51 15.3 20.7 145451 705 Cr5138 2000 11 27.16418 02 48 09.14 -07 11 15.3 20.0V 145451 705 Cr5138 2000 11 27.16751 02 48 09.13 -07 11 15.2 20.6 145451 705 Cr5138 2001 10 22.47580 02 58 31.94 -05 41 41.5 20.3R 145451 644 Cr5138 2001 10 22.49947 02 58 31.80 -05 41 42.0 20.3R 145451 644 Cr5138 2001 10 28.34685 02 58 00.76 -05 43 53.6 19.7R 145451 644 Cr5138 2001 10 28.36763 02 58 00.64 -05 43 54.0 19.6R 145451 644 Cr5138 2001 10 28.38828 02 58 00.55 -05 43 54.5 19.6R 145451 644 Cr5138 2001 12 14.09448 02 53 58.30 -05 47 06.5 20.2R 145451 644 Cr5138 2001 12 14.11684 02 53 58.19 -05 47 05.9 20.2R 145451 644 Cr5138 2002 10 05.43920 03 07 01.71 -04 10 54.2 20.1R 145451 644 Cr5138 2002 10 05.44963 03 07 01.62 -04 10 54.7 19.5R 145451 644 Cr5138 2002 10 05.45998 03 07 01.61 -04 10 54.6 19.6R 145451 644 Cr5138 2002 10 06.43839 03 06 57.47 -04 11 24.3 19.6R 145451 644 Cr5138 2002 10 06.44882 03 06 57.44 -04 11 24.2 20.0R 145451 644 Cr5138 2002 10 06.45926 03 06 57.37 -04 11 24.8 20.3R 145451 644 Cr5138 2002 10 10.43631 03 06 39.90 -04 13 21.6 19.4R 145451 644 Cr5138 2002 10 10.44677 03 06 39.82 -04 13 21.4 19.5R 145451 644 Cr5138 2002 10 10.45737 03 06 39.83 -04 13 21.7 19.4R 145451 644 Cr5138 2002 10 28.41032 03 05 10.12 -04 20 54.0 20.2R 145451 644 Cr5138 2002 11 06.34203 03 04 21.35 -04 23 39.7 20.1R 145451 644 Cr5138 2002 11 06.36314 03 04 21.22 -04 23 40.1 20.3R 145451 644 Cr5138 2002 11 06.38420 03 04 21.09 -04 23 40.4 19.5R 145451 644 Cr5138 2002 12 07.26000 03 01 36.31 -04 26 06.3 19.8R 145451 644 Cr5138 2002 12 07.28250 03 01 36.19 -04 26 06.5 19.7R 145451 644 Cr5138 2002 12 07.31936 03 01 36.02 -04 26 06.0 19.9R 145451 644 Cr5138 2002 12 13.15464 03 01 09.03 -04 25 09.0 20.3R 145451 644 Cr5138 2002 12 13.17590 03 01 08.93 -04 25 09.1 20.3R 145451 644 Cr5138 2002 12 13.19711 03 01 08.85 -04 25 08.9 19.7R 145451 644 Cr5138 2005 09 03.45120 03 29 31.16 +00 12 35.0 20.7 145451 705 Cv1675 2005 09 03.45453 03 29 31.15 +00 12 34.9 20.2V 145451 705 Cv1675 2005 09 09.46437 03 29 24.55 +00 10 04.0 20.1V 145451 705 Cr5138 2005 09 09.46769 03 29 24.55 +00 10 04.0 20.7 145451 705 Cr5138 2005 09 14.42137 03 29 16.26 +00 07 54.6 20.2V 145451 705 Cr5138 2005 09 14.42469 03 29 16.25 +00 07 54.4 20.7 145451 705 Cr5138 2005 09 25.45476 03 28 48.95 +00 02 58.0 20.1V 145451 705 Cr5138 2005 09 25.45808 03 28 48.93 +00 02 57.8 20.6 145451 705 Cr5138 2005 09 27.41873 03 28 42.88 +00 02 04.9 20.1V 145451 705 Cr5138 2005 09 27.42205 03 28 42.86 +00 02 04.6 20.7 145451 705 Cr5138 2005 09 30.46109 03 28 32.79 +00 00 42.7 20.1V 145451 705 Cr5138 2005 09 30.46441 03 28 32.77 +00 00 42.6 20.6 145451 705 Cr5138 2005 10 01.40584 03 28 29.51 +00 00 17.2 20.0V 145451 705 Cr5138 2005 10 01.40916 03 28 29.47 +00 00 17.6 20.6 145451 705 Cr5138 2005 10 14.41623 03 27 36.88 -00 05 19.9 20.0V 145451 705 Cr5138 2005 10 14.41956 03 27 36.85 -00 05 19.8 20.6 145451 705 Cr5138 2005 10 22.37832 03 26 59.04 -00 08 27.0 20.2V 145451 705 Cr5138 2005 10 22.38164 03 26 59.02 -00 08 27.1 20.3 145451 705 Cr5138 2005 10 23.47036 03 26 53.57 -00 08 51.2 20.0V 145451 705 Cr5138 2005 10 23.47368 03 26 53.55 -00 08 51.4 20.5 145451 705 Cr5138 2005 10 25.38977 03 26 43.84 -00 09 32.6 20.0V 145451 705 Cr5138 2005 10 25.39309 03 26 43.81 -00 09 32.7 20.6 145451 705 Cr5138 2005 10 26.47731 03 26 38.23 -00 09 55.5 20.1V 145451 705 Cr5138 2005 10 26.48063 03 26 38.21 -00 09 55.6 20.6 145451 705 Cr5138 2005 10 27.39450 03 26 33.48 -00 10 14.3 20.1V 145451 705 Cr5138 2005 10 27.39782 03 26 33.46 -00 10 14.4 20.8 145451 705 Cr5138 2005 10 30.36231 03 26 17.85 -00 11 13.2 20.0V 145451 705 Cr5138 2005 10 30.36563 03 26 17.83 -00 11 13.3 20.5 145451 705 Cr5138 2005 11 02.47864 03 26 01.09 -00 12 11.0 19.8V 145451 705 Cr5138 2005 11 02.48197 03 26 01.06 -00 12 11.1 20.4 145451 705 Cr5138 2005 11 05.41863 03 25 45.03 -00 13 01.0 20.5 145451 705 Cv1675 2005 11 05.42196 03 25 45.00 -00 13 01.1 20.0V 145451 705 Cv1675 2005 11 07.41003 03 25 34.04 -00 13 32.6 20.0V 145451 705 Cr5138 2005 11 07.41335 03 25 34.02 -00 13 32.6 20.5 145451 705 Cr5138 2005 11 10.37134 03 25 17.58 -00 14 15.5 19.9V 145451 705 Cr5138 2005 11 10.37466 03 25 17.56 -00 14 15.6 20.5 145451 705 Cr5138 2005 11 13.31247 03 25 01.12 -00 14 53.6 20.0V 145451 705 Cr5138 2005 11 13.31579 03 25 01.10 -00 14 53.7 20.5 145451 705 Cr5138 2005 11 22.37478 03 24 10.39 -00 16 18.8 20.6 145451 705 Cv1675 2005 11 22.37810 03 24 10.37 -00 16 18.9 20.0V 145451 705 Cv1675 2005 11 23.36602 03 24 04.89 -00 16 25.1 20.5 145451 705 Cv1675 2005 11 23.36934 03 24 04.87 -00 16 25.1 20.0V 145451 705 Cv1675 2005 11 26.36479 03 23 48.33 -00 16 40.1 20.6 145451 705 Cv1675 2005 11 26.36810 03 23 48.31 -00 16 40.2 20.0V 145451 705 Cv1675 2005 12 01.35115 03 23 21.31 -00 16 51.8 20.5 145451 705 Cv1675 2005 12 01.35447 03 23 21.28 -00 16 51.9 20.0V 145451 705 Cv1675 2006 10 16.41639 03 34 32.79 +01 17 16.1 19.4R 145451 705 Cs2985 2006 10 16.43365 03 34 32.72 +01 17 15.8 19.3R 145451 705 Cs2985 2006 10 16.45178 03 34 32.62 +01 17 15.0 19.6R 145451 705 Cs2985 2006 10 16.45852 03 34 32.58 +01 17 14.9 19.4R 145451 705 Cs2985 2006 10 16.46815 03 34 32.55 +01 17 14.8 19.3R 145451 705 Cs2985 2006 10 21.47628 03 34 09.08 +01 15 22.5 20.0V 145451 705 Cs4094 2006 10 21.47960 03 34 09.05 +01 15 22.4 20.5 145451 705 Cs4094 2006 10 28.38804 03 33 34.38 +01 12 59.6 20.0V 145451 705 Cs6505 2006 10 28.39136 03 33 34.36 +01 12 59.5 20.6 145451 705 Cs6505 2006 10 31.38602 03 33 18.65 +01 12 03.0 20.0V 145451 705 Cs6505 2006 10 31.38934 03 33 18.63 +01 12 03.0 20.6 145451 705 Cs6505 2006 11 02.35656 03 33 08.13 +01 11 27.8 19.9V 145451 705 Cs6505 2006 11 02.35989 03 33 08.11 +01 11 27.7 20.4 145451 705 Cs6505 2006 11 09.40678 03 32 29.56 +01 09 35.3 20.0V 145451 705 Ct5401 2006 11 09.41010 03 32 29.53 +01 09 35.2 20.6 145451 705 Ct5401 2006 11 13.38393 03 32 07.35 +01 08 42.5 20.0V 145451 705 Ct5401 2006 11 13.38725 03 32 07.33 +01 08 42.3 20.5 145451 705 Ct5401 2006 11 16.39528 03 31 50.42 +01 08 07.8 19.9V 145451 705 Ct5401 2006 11 16.39860 03 31 50.40 +01 08 07.8 20.4 145451 705 Ct5401 2006 11 19.37815 03 31 33.62 +01 07 38.6 20.0V 145451 705 Ct5401 2006 11 19.38147 03 31 33.60 +01 07 38.4 20.5 145451 705 Ct5401 2006 11 21.39982 03 31 22.26 +01 07 21.5 19.9V 145451 705 Ct5401 2006 11 21.40314 03 31 22.24 +01 07 21.5 20.5 145451 705 Ct5401 2006 11 26.37608 03 30 54.47 +01 06 50.2 20.0V 145451 705 Ct5401 2006 11 26.37940 03 30 54.45 +01 06 50.2 20.6 145451 705 Ct5401 2006 11 30.79467 03 30 30.26 +01 06 35.2 19.7R 145451 143 Ct5401 2006 11 30.84391 03 30 29.91 +01 06 35.0 19.1R 145451 143 Ct5401 2008 02 07.78534 03 33 56.14 +02 51 36.8 18.9R 145451 130 Cx9032
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 0.01 0.00 1.61 2 0.0000 0.00 0.20 0.00 -0.37 3 22.9020 0.00 0.17 0.00 -0.23 4 22.9021 0.00 0.27 0.00 -0.24 5 23.8576 0.00 0.15 0.00 -0.20 6 23.8576 0.00 0.19 0.00 -0.19 7 24.0266 0.00 0.18 0.00 -0.33 8 24.0266 0.00 0.29 0.00 -0.24 9 24.9282 0.00 -0.08 0.00 0.13 10 24.9283 0.00 -0.31 0.00 0.20 11 24.9443 0.00 -0.34 0.00 0.42 12 24.9443 0.00 -0.43 0.00 0.45 13 24.9444 0.00 -0.08 0.00 0.38 14 25.0723 0.00 0.56 0.00 0.04 15 25.0723 0.00 0.35 0.00 0.31 16 25.8809 0.00 0.08 0.00 0.21 17 25.8809 0.00 -0.60 0.00 0.03 18 25.8809 0.00 -0.09 0.00 0.44 19 25.8836 0.00 -0.16 0.00 0.06 20 25.8836 0.00 0.07 0.00 0.47 21 25.8837 0.00 -0.30 0.00 0.18 22 25.8946 0.00 0.03 0.00 -0.11 23 25.8946 0.00 -0.44 0.00 0.39 24 25.8946 0.00 0.44 0.00 0.39 25 25.9438 0.00 -0.22 0.00 0.60 26 25.9682 0.00 0.10 0.00 0.23 27 25.9683 0.00 -0.06 0.00 0.16 28 25.9683 0.00 -0.24 0.00 0.19 29 26.0529 0.00 -0.10 0.00 0.24 30 26.0529 0.00 -0.25 0.00 -0.12 31 26.0530 0.00 -0.10 0.00 0.11 32 26.0690 0.00 -0.60 0.00 0.54 33 26.0691 0.00 -0.65 0.00 0.18 34 26.0691 0.00 -0.42 0.00 0.13 35 28.7940 0.00 0.12 0.00 -0.03 36 28.7940 0.00 0.01 0.00 -0.05 37 28.8105 0.00 0.03 0.00 -0.05 38 28.8105 0.00 0.11 0.00 0.04 39 28.8240 0.00 0.24 0.00 -0.05 40 28.8240 0.00 0.19 0.00 -0.16 41 28.8542 0.00 0.12 0.00 -0.02 42 28.8542 0.00 -0.03 0.00 -0.13 43 28.8596 0.00 0.10 0.00 0.06 44 28.8596 0.00 -0.04 0.00 -0.15 45 28.8679 0.00 0.16 0.00 -0.02 46 28.8679 0.00 0.04 0.00 -0.03 47 28.8705 0.00 0.36 0.00 -0.13 48 28.8705 0.00 -0.06 0.00 0.35 49 28.9061 0.00 0.27 0.00 -0.10 50 28.9062 0.00 0.05 0.00 0.09 51 28.9279 0.00 0.18 0.00 0.05 52 28.9280 0.00 0.14 0.00 0.02 53 28.9309 0.00 0.18 0.00 -0.02 54 28.9309 0.00 0.14 0.00 -0.14 55 28.9362 0.00 0.28 0.00 -0.03 56 28.9362 0.00 0.09 0.00 -0.06 57 28.9392 0.00 0.16 0.00 -0.09 58 28.9392 0.00 0.13 0.00 -0.12 59 28.9417 0.00 0.22 0.00 0.02 60 28.9417 0.00 0.18 0.00 -0.01 61 28.9498 0.00 0.22 0.00 -0.05 62 28.9498 0.00 0.19 0.00 -0.09 63 28.9583 0.00 0.23 0.00 -0.21 64 28.9583 0.00 0.06 0.00 -0.25 65 28.9664 0.00 0.20 0.00 -0.02 66 28.9664 0.00 0.03 0.00 -0.06 67 28.9718 0.00 0.21 0.00 -0.07 68 28.9718 0.00 0.19 0.00 -0.02 69 28.9799 0.00 0.30 0.00 0.08 70 28.9800 0.00 0.28 0.00 0.02 71 28.9880 0.00 0.11 0.00 -0.02 72 28.9880 0.00 0.10 0.00 -0.08 73 29.0128 0.00 0.15 0.00 0.03 74 29.0128 0.00 0.13 0.00 -0.04 75 29.0155 0.00 0.23 0.00 -0.02 76 29.0155 0.00 0.21 0.00 0.00 77 29.0237 0.00 0.09 0.00 0.00 78 29.0237 0.00 0.07 0.00 -0.08 79 29.0374 0.00 0.23 0.00 -0.04 80 29.0374 0.00 0.04 0.00 -0.13 81 29.9109 0.00 -0.17 0.00 -0.01 82 29.9110 0.00 -0.02 0.00 0.08 83 29.9110 0.00 -0.27 0.00 -0.30 84 29.9111 0.00 -0.40 0.00 -0.24 85 29.9111 0.00 -0.19 0.00 -0.12 86 29.9248 0.00 0.16 0.00 0.05 87 29.9248 0.00 -0.05 0.00 0.02 88 29.9437 0.00 0.17 0.00 0.01 89 29.9437 0.00 0.13 0.00 -0.02 90 29.9519 0.00 0.16 0.00 0.06 91 29.9519 0.00 0.13 0.00 0.12 92 29.9573 0.00 0.13 0.00 0.14 93 29.9573 0.00 0.11 0.00 0.10 94 29.9766 0.00 0.18 0.00 -0.05 95 29.9766 0.00 0.01 0.00 -0.11 96 29.9875 0.00 0.12 0.00 0.05 97 29.9875 0.00 0.11 0.00 -0.11 98 29.9958 0.00 0.09 0.00 -0.07 99 29.9958 0.00 0.07 0.00 -0.04 100 30.0039 0.00 0.01 0.00 0.05 101 30.0039 0.00 -0.01 0.00 -0.12 102 30.0095 0.00 0.15 0.00 -0.09 103 30.0095 0.00 0.14 0.00 -0.06 104 30.0231 0.00 0.20 0.00 -0.07 105 30.0231 0.00 0.18 0.00 -0.05 106 30.0352 0.00 0.86 0.00 -0.15 107 30.0353 0.00 -0.34 0.00 -0.25 108 31.2234 0.00 ( -2.06) 0.00 ( -1.43)
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.
145451 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 92.975 92.975 92.975 ecceobj 0.622 0.622 0.622 incobj 28.727 28.727 28.727 qmin 33.389 33.358 33.399 qmax 152.555 151.167 151.553 amean 91.039 90.487 90.451 amin 89.098 88.782 88.557 amax 93.626 93.406 92.975 emean 0.614 0.614 0.611 emin 0.595 0.595 0.590 emax 0.633 0.631 0.632 imean 27.311 27.039 27.322 imin 26.041 25.971 26.041 imax 28.609 28.495 28.676 fracstop 1.000 1.000 1.000 cjmean 2.770 2.770 2.770 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 130.5 131.2 133.3 kozaiamp 180.0 180.0 180.0