2021 March 22, 13:57:14 UT Orbital elements: C/2021 D2 (ZTF) Epoch 2022 Feb. 10.0 TT = JDT 2459620.5 T 2022 Feb. 4.17974 TT Sato q 2.9443623 (2000.0) P Q z +0.0000242 Peri. 125.09172 -0.26419739 -0.52748893 +/-0.0003136 Node 305.69656 +0.15171660 +0.80403073 e 0.9999285 Incl. 83.84519 +0.95246092 -0.27439027 From 44 observations 2021 Feb. 19-Mar. 21, mean residual 0".28. Epoch 2021 Apr. 16.0 TT = JDT 2459320.5 T 2022 Feb. 4.18453 TT Sato q 2.9445540 (2000.0) P Q z +0.0001548 Peri. 125.08731 -0.26414555 -0.52747783 +/-0.0003136 Node 305.69429 +0.15165778 +0.80406620 e 0.9995443 Incl. 83.84599 +0.95248467 -0.27430763 Residuals in seconds of arc 210219 I41 0.2- 0.3- 210311 N51 0.2- 0.0 210318 Z08 0.0 0.1- 210219 I41 0.0 0.0 210311 N51 0.1- 0.1- 210318 Z08 0.1+ 0.3+ 210219 I41 0.0 0.1+ 210311 N51 0.0 0.0 210318 G40 0.0 0.2- 210219 I41 0.2+ 0.1+ 210311 N51 0.2+ 0.8+ 210318 G40 0.7- 0.0 210309 I41 0.1+ 0.4- 210311 N51 0.4- 0.7+ 210318 Q11 0.2- 0.3+ 210309 I41 0.0 0.3- 210312 033 0.0 0.0 210318 Q11 0.3- 0.0 210309 I41 0.1+ 0.1- 210312 033 0.1+ 0.1+ 210319 H06 0.4- 0.1- 210309 I41 0.1+ 0.1- 210312 033 0.1- 0.1- 210319 H06 0.3- 0.2- 210309 I41 0.4+ 0.1- 210313 204 0.0 0.4- 210319 H06 0.1+ 0.0 210310 L01 0.0 0.3- 210313 204 0.3+ 0.2- 210319 Q11 0.0 0.3- 210310 L01 0.6- 0.8+ 210315 I89 0.3+ 0.2- 210319 Q11 0.1- 0.2- 210310 L01 0.0 0.0 210315 I89 0.5+ 0.2- 210319 Q11 0.0 0.3- 210310 291 0.0 0.3+ 210315 J04 0.2- 0.3- 210321 K83 0.5+ 0.4+ 210310 291 0.0 0.1+ 210315 J04 0.1+ 0.1- 210321 K83 0.6+ 0.6+ 210310 291 0.1+ 0.2+ 210315 J04 0.1- 0.0 --