June 24, 2015A20:20:26 UT Orbital elements: C/2015 M1 (PANSTARRS) = P10lTdi T 2015 May 16.46179 TT Sato q 2.0966715 (2000.0) P Q Peri. 164.36314 +0.02970306 +0.55776536 Node 100.30823 -0.98345515 +0.16466429 e 1.0 Incl. 57.46625 -0.17870002 -0.81350076 From 43 observations 2015 June 20-22, mean residual 0".43. L = 271.7, B =+13.1. Residuals in seconds of arc 150620 F51 0.3+ 0.1+ 150621 H36 1.0- 0.7+ 150621 568 0.1- 0.0 150620 F51 0.3+ 0.1+ 150621 W96 0.7+ 0.1+ 150621 568 0.1- 0.0 150620 F51 0.2+ 0.2+ 150621 W96 0.9- 0.3- 150621 E23 0.2- 1.0- 150621 B74 0.2+ 0.4- 150621 W96 0.3- 0.2- 150621 E23 0.9+ 0.2- 150621 B74 0.4+ 0.2- 150621 926 0.4+ 0.3+ 150621 E23 0.4- 0.1- 150621 B74 0.2+ 0.7- 150621 W96 0.3+ 0.0 150621 E23 0.8+ 0.7- 150621 958 0.2- 0.1- 150621 926 0.1- 0.2- 150621 Q62 0.4+ 0.1+ 150621 958 0.5- 0.7- 150621 926 0.3- 0.1- 150621 Q62 0.4+ 0.2+ 150621 958 0.4- 0.2- 150621 926 0.5- 0.7+ 150621 Q62 0.3+ 0.6+ 150621 807 0.0 0.3+ 150621 926 0.1- 0.6+ 150622 474 0.4+ 0.4+ 150621 807 0.4+ 0.0 150621 926 0.1- 0.1+ 150622 474 0.0 0.1+ 150621 807 0.0 0.4- 150621 926 0.5- 0.5+ 150622 474 0.8- 0.0 150621 807 0.3+ 0.1- 150621 926 0.4- 0.0 150622 474 0.1+ 0.5- 150621 807 0.1- 0.2+ 150621 926 1.0+ 0.4+ 150621 H36 0.8- 0.8+ 150621 568 0.2- 0.0 June 22, 2015A12:03:18 UT Orbital elements: P10lTdi T 2015 May 17.6186 TT Sato q 2.101383 (2000.0) P Q Peri. 164.9256 +0.0358093 +0.5557450 Node 100.3180 -0.9818278 +0.1745544 e 1.0 Incl. 57.5899 -0.1863651 -0.8128212 From 33 observations 2015 June 20-21, mean residual 0".45. June 21, 2015A12:33:03 UT Orbital elements: P10lTdi T 2015 May 3.8541 TT Sato q 2.033163 (2000.0) P Q Peri. 157.9183 -0.0436175 +0.5775692 Node 100.1780 -0.9948076 +0.0499915 e 1.0 Incl. 55.9152 -0.0919529 -0.8148096 From 24 observations 2015 June 20-21, mean residual 0".32. --