2025 February 27, 08:28:51 UT Orbital elements: C/2025 D1 (Groeller) Epoch 2026 May 20.0 TT = JDT 2461180.5 T 2028 May 22.45574 TT Sato q 14.1158061 (2000.0) P Q z -0.0002221 Peri. 185.95840 -0.68444124 +0.00019860 +/-0.0000059 Node 312.90339 +0.70325413 +0.26392174 e 1.0031358 Incl. 84.44935 +0.19228579 -0.96454408 From 36 observations 2018 June 6-2025 Feb. 26, mean residual 0".36. Epoch 2025 Mar. 26.0 TT = JDT 2460760.5 T 2028 May 19.58893 TT Sato q 14.1199425 (2000.0) P Q z -0.0002142 Peri. 185.87939 -0.68433408 -0.00051989 +/-0.0000059 Node 312.89688 +0.70298327 +0.26510978 e 1.0030250 Incl. 84.46841 +0.19365278 -0.96421809 Residuals in seconds of arc 180606 V00 0.1+ 0.1+ 250220 V00 0.2+ 0.1+ 250221 I52 0.5- 0.4- 180607 V00 0.0 0.1- 250220 V06 0.1+ 0.1- 250221 I52 0.4- 0.6+ 180609 V00 0.1- 0.1+ 250220 V06 0.0 0.0 250221 K77 0.2- 0.4- 180618 V00 0.5+ 0.2- 250220 V06 0.1+ 0.1- 250221 K77 0.8- 0.3- 190209 V00 0.3- 0.1- 250220 V06 1.0+ 0.4- 250221 G00 0.5+ 0.8+ 190212 V00 0.1- 0.3+ 250220 587 0.0 0.2- 250221 G00 0.4- 0.0 220202 T14 0.2+ 0.0 250220 587 0.2+ 0.0 250221 G00 0.6+ 0.1+ 220530 T09 0.2- 0.2- 250220 587 0.3+ 0.1+ 250222 W62 0.1+ 0.2+ 220530 T09 0.2- 0.2+ 250221 691 0.2- 0.6- 250222 W62 0.2+ 0.3- 250220 V00 0.6+ 0.0 250221 I52 1.1- 0.7+ 250222 W62 0.1+ 0.2- 250220 V00 0.3+ 0.0 250221 691 0.6+ 0.0 250226 Q11 0.3- 0.0 250220 V00 0.1+ 0.1+ 250221 I52 0.5- 0.2+ 250226 Q11 0.4- 0.1+ 2025 February 23, 08:09:23 UT Orbital elements: C/2025 D1 (Groeller) Epoch 2028 May 29.0 TT = JDT 2461920.5 T 2028 May 28.26120 TT Sato q 14.1125135 (2000.0) P Q z -0.0002401 Peri. 186.11319 -0.68443468 +0.00217592 +/-0.0000059 Node 312.90418 +0.70396808 +0.26213534 e 1.0033881 Incl. 84.45933 +0.18967897 -0.96502867 From 34 observations 2018 June 6-2025 Feb. 22, mean residual 0".36. Epoch 2025 Mar. 26.0 TT = JDT 2460760.5 T 2028 May 19.57810 TT Sato q 14.1199985 (2000.0) P Q z -0.0002150 Peri. 185.87905 -0.68433420 -0.00052413 +/-0.0000059 Node 312.89689 +0.70298155 +0.26511392 e 1.0030364 Incl. 84.46840 +0.19365857 -0.96421695 --