DASO Circular No. 66 Issued: 2006 Sept. 1, 20:24 UT The DISTANT ARTIFICIAL SATELLITES OBSERVATION (DASO) Circulars are a private publication by staff of the Minor Planet Center and are intended to disseminate astrometric observations of distant artificial satellites. Editor: Gareth V. Williams (gwilliams@cfa.harvard.edu) Astrometry submissions to mpc@cfa.harvard.edu (Subject line = "ART SAT") Observations: 6Q0B44E C2006 09 01.06169 00 07 09.40 -22 21 58.3 D0066204 6Q0B44E C2006 09 01.06736 00 07 12.21 -22 22 52.9 19.6 R D0066204 6Q0B44E C2006 09 01.07304 00 07 15.03 -22 23 47.5 D0066204 Observer details: 204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector + CCD. Orbital elements: 6Q0B44E Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC M 280.67293 (2000.0) P Q n 0.97257962 Peri. 23.04893 +0.14305822 -0.98970010 a 1.0089104 Node 58.72659 +0.90707726 +0.12897078 e 0.0310103 Incl. 0.35507 +0.39591058 +0.06213088 P 1.01 H 30.5 G 0.15 U 4 Residuals in seconds of arc K068S 703 0.6- 0.5+ K068S 673 0.2+ 0.9+ K068U J95 0.0 0.4+ K068S 703 0.4+ 0.7- K068S 673 0.0 0.3+ K068U J77 1.6+ 1.8- K068S 703 0.1+ 1.0- K068S E12 0.6- 0.6- K068V 204 1.6- 0.1- K068S 703 0.1+ 0.8- K068S E12 0.4+ 0.0 K068V 204 1.1- 0.1+ K068S 703 (2.0- 2.3+) K068T 703 0.6- 0.7+ K068V 204 (2.4- 4.1+) K068S 703 0.3+ 1.4+ K068T 703 1.8- 0.4- K068V F84 0.2+ 0.0 K068S 703 0.0 0.3- K068T 703 0.5- 0.6- K068V F84 0.1- 0.4- K068S 703 1.2- 0.6+ K068T 703 0.2- 0.0 K068V F84 0.3+ 0.7- K068S 673 0.7+ 0.7+ K068T 703 1.0- 1.8+ K0691 204 0.0 0.4+ K068S 673 1.1+ 0.1- K068T 703 1.3- 0.8- K0691 204 0.1+ 0.7+ K068S E12 0.2- 0.1- K068T J95 0.3+ 0.5- K0691 204 0.0 0.6+ Geocentric orbital elements for various epochs: Epoch T (JD) Peri. Node Incl. e a/km P/d YYYYMMDD (Referred to Earth equator) 20060910 2453965.06007 107.48832 154.22443 40.43209 0.2940724 722125 70.3 20060908 2453965.04181 110.57372 154.33979 40.46188 0.2794293 735410 72.2 20060906 2453965.12016 114.24033 154.38695 40.47860 0.2658017 749322 74.3 20060904 2453965.29147 118.15587 154.38760 40.47858 0.2539478 762419 76.2 20060902 2453965.53203 121.98956 154.37294 40.46851 0.2439387 773458 77.9 20060831 2453965.80358 125.44702 154.35217 40.44850 0.2354291 781402 79.1 20060829 2453966.04973 128.20946 154.32635 40.40991 0.2275867 785161 79.6 20060827 2453966.21353 130.01418 154.30352 40.34158 0.2190352 783758 79.4 20060825 2453966.26758 130.79986 154.30342 40.23668 0.2082826 776821 78.4 20060823 2453966.23286 130.78945 154.35195 40.09962 0.1945703 765130 76.6 20060821 2453966.16967 130.42552 154.46767 39.94954 0.1786141 750748 74.5 The above orbital elements show perigees around 2006 Jan. 19.8 (geocentric distance 0.00282 AU), Mar. 27.6 (0.00418 AU), June 1.4 (0.00301 AU), Aug. 19.0 (0.00411 AU) and Oct. 18.8 (0.00340 AU). Apogees occur around 2006 Feb. 18.1 (0.00623 AU), May 3.0 (0.00600 AU), July 4.9 (0.00636 AU), Sept. 19.0 (0.00617 AU) and Nov. 28.1 (0.00644 AU). +-------------------------------------------------------------------------+ | The DISTANT ARTIFICAL-SATELLITES OBSERVERS Circulars are prepared as | | a private publication by staff of the Minor Planet Center. | | Back issues are available at: ftp://cfa-ftp.harvard.edu/pub/DASO/ | | Archives of published (and referenceable) observations are at: | | ftp://cfa-ftp.harvard.edu/pub/DASO/Obs/ | | Http access available at http://cfa-www.harvard.edu/~gwilliams/DASO/ | | Free e-mail subscriptions: send your e-mail address to the editor. | | Astrometry submission to mpc@cfa.harvard.edu with subject "ART SAT". | | These circulars are copyrighted publications, but free use of any and | | all information contained herein may be made provided that the normal | | scientific procedures for referencing material are followed. | +-------------------------------------------------------------------------+ DASO Circular No. 66 Issued: 2006 Sept. 1, 20:24 UT