2017 May 24, 05:51:45 UT Orbital elements: C/2017 K1 (PANSTARRS) = P10Btbf T 2018 Apr. 27.84910 TT Sato q 7.1916414 (2000.0) P Q Peri. 7.57104 -0.77688119 -0.54527897 Node 225.71202 -0.59828909 +0.48344379 e 1.0 Incl. 153.90732 -0.19622891 +0.68480139 From 17 observations 2017 May 21-23, mean residual 0".26. Residuals in seconds of arc 170521 F51 0.0 0.0 170522 691 0.0 0.5+ 170523 691 0.9+ 0.4- 170521 F51 0.0 0.1- 170522 Q62 0.2- 0.3- 170523 568 0.0 0.3+ 170521 F51 0.1+ 0.1+ 170522 Q62 0.0 0.0 170523 568 0.1- 0.2+ 170521 F51 0.0 0.1+ 170522 Q62 0.3- 0.2+ 170523 568 0.1- 0.2+ 170522 691 0.3+ 0.0 170523 691 0.3- 0.2- 170523 568 0.1- 0.3+ 170522 691 0.1- 0.5- 170523 691 0.1- 0.4- 2017 May 23, 22:02:20 UT Orbital elements: P10Btbf T 2018 Aug. 30.05866 TT Sato q 6.8155972 (2000.0) P Q Peri. 18.18891 -0.86082960 -0.39474050 Node 226.00485 -0.50448619 +0.57906928 e 1.0 Incl. 153.48404 -0.06682876 +0.71334333 From 13 observations 2017 May 21-23, mean residual 0".27. --