March 19, 2010A11:52:31 UT Orbital elements: C/2010 F1 (Boattini) Epoch 2009 Nov. 25.0 TT = JDT 2455160.5 T 2009 Nov. 11.31233 TT Sato q 3.5857637 (2000.0) P Q n 0.00201809 Peri. 127.64958 -0.49823325 -0.83239021 a 62.0167849 Node 344.44864 +0.16267075 +0.18517529 e 0.9421808 Incl. 64.84365 +0.85164655 -0.52233768 P 488.39 From 76 observations 2010 Feb. 20-Mar. 19, mean residual 0".49. Epoch 2010 Mar. 25.0 TT = JDT 2455280.5 T 2009 Nov. 11.29973 TT Sato q 3.5857274 (2000.0) P Q n 0.00200620 Peri. 127.64616 -0.49818193 -0.83241944 a 62.2615351 Node 344.44834 +0.16265865 +0.18519167 e 0.9424086 Incl. 64.84391 +0.85167889 -0.52228528 P 491.28 Residuals in seconds of arc 100220 703 0.4- 1.3- 100317 B09 0.1+ 0.3- 100318 H01 0.5- 0.4- 100220 703 0.4+ 0.3+ 100317 B09 0.6+ 0.2- 100318 H10 0.1- 0.1+ 100220 703 0.3+ 0.1+ 100317 B09 0.6+ 0.1+ 100318 G58 0.3- 0.7- 100220 703 0.4- 1.0+ 100318 H75 0.5- 0.4- 100318 H36 0.0 0.4- 100317 703 1.2+ 0.4- 100318 H75 0.5- 0.3- 100318 H10 0.0 0.0 100317 703 0.3+ 0.4- 100318 H75 0.6- 0.7- 100318 H36 0.1+ 0.1+ 100317 703 0.2+ 0.9+ 100318 H26 0.4- 0.8+ 100318 H36 0.1- 0.4- 100317 703 0.4+ 0.2+ 100318 H26 0.4- 0.4+ 100318 H06 0.2+ 0.1+ 100317 703 0.1+ 0.7+ 100318 H26 0.3- 0.6+ 100318 H06 0.4+ 0.2+ 100317 703 0.0 0.0 100318 926 0.1+ 0.1+ 100318 H06 0.5+ 0.5+ 100317 703 0.1+ 0.6+ 100318 926 0.0 0.1- 100318 H21 0.3- 0.2- 100317 G96 0.4- 0.3- 100318 926 0.6- 0.4- 100318 H21 0.1- 0.1- 100317 G96 0.7- 0.1- 100318 H01 0.5- 0.3- 100318 H21 0.4- 0.3- 100317 G96 0.4- 0.8- 100318 H05 0.5+ 0.6+ 100318 854 0.1+ 0.4+ 100317 G96 0.4- 0.4- 100318 H01 0.5- 0.2- 100318 854 0.5+ 0.1- 100317 703 1.1+ 0.0 100318 H05 0.3+ 0.8+ 100318 H06 0.4+ 0.1- 100317 G96 0.5- 0.9- 100318 H01 0.5- 0.3- 100318 H06 0.1+ 0.8+ 100317 G96 0.4- 1.0- 100318 G58 0.3+ 0.0 100319 H45 0.6- 0.5+ 100317 G96 0.4- 0.8- 100318 H05 0.6+ 0.2- 100319 H45 0.1+ 0.3+ 100317 G96 0.7- 0.6- 100318 H21 0.6- 0.6- 100319 H45 0.4+ 0.3+ 100317 703 0.3- 1.1+ 100318 G58 0.1+ 0.4+ 100319 H45 0.4+ 0.3+ 100317 703 0.8+ 1.9+ 100318 H21 0.3- 0.3- 100319 H45 0.3+ 0.1+ 100317 703 0.7+ 0.5+ 100318 H36 0.0 0.1- 100319 H45 0.6+ 0.2- 100317 703 0.5+ 0.9+ 100318 H10 0.1- 0.1+ 100319 H45 0.1- 0.8- 100317 A13 0.4- 0.3- 100318 H21 0.1+ 0.1- 100317 A13 0.5+ 0.2- 100318 H36 0.1- 0.1+ March 18, 2010A20:06:03 UT Orbit-1 Orbital elements: C/2010 F1 (Boattini) T 2009 Nov. 13.80725 TT Sato q 3.6343127 (2000.0) P Q Peri. 128.40058 -0.50711299 -0.82340819 Node 343.79936 +0.15674350 +0.20239841 e 1.0 Incl. 65.87260 +0.84750687 -0.53012624 From 61 observations 2010 Feb. 20-Mar. 18, mean residual 0".70. Orbit-2 Orbital elements: C/2010 F1 (Boattini) T 2009 Nov. 11.90086 TT Sato q 3.5876937 (2000.0) P Q n 0.00198304 Peri. 127.77593 -0.50004571 -0.83126548 a 62.7453282 Node 344.44171 +0.16298629 +0.18502284 e 0.9428213 Incl. 64.85471 +0.85052322 -0.52417960 P 497.02 From 69 observations 2010 Feb. 20-Mar. 18, mean residual 0".50. --