C/2023 A1 (Leonard) _ CK23A010 _ C8T3Z82 object, MPEC 2023-B66, CBET 5208
В настоящее время открытая комета находится на расстоянии менее 5° (рис. №2) к северо-востоку от видимой невооружённым глазом кометы C/2022 E3 (ZTF)
C/2023 A1 (Leonard) / CK23A010 (e=1.000, i=94.8°, q=1.836 AU, TP=2023 Mar. 18.75 TT) was picked up at 1259 UT on 9 Jan. by program code 1 via the Mt. Lemmon Survey (MLS), which observed it at Jan. 9.54-56p4, 10.48-49p3, and 12.54-55p2. This detection was confirmed by program code 35 via La Palma (Jan. 10.21-26p3), Visnjan Obs. (Jan. 10.98-99p3), Modra Obs. (Jan. 11.16-18p3), NEOWISE (Jan. 12.03p1, 12.22p2, 12.29p1, 12.42p1, 12.48p1, 12.55p1, 12.61p1, 12.68p1, 12.74p1, 12.81p1, 12.87p1 & 12.94p1), Sormano2 Obs. (Jan. 12.09-13p3), program code 1 via the Catalina Sky Survey (CSS) (Jan. 13.49-51p4), Farra d'Isonzo Obs. (Jan. 14.14-16p3), Chante-Perdrix Obs. (Jan. 14.20-23p3), SATINO-1 (Jan. 14.23-24p2 & 16.17-19p2), AstroColauri Obs. (Jan. 15.10-12p2), ATLAS Haleakala (Jan. 15.59-62p4), B. Lutkenhoner via Slooh.com Canary Islands Obs. (Jan. 16.24-27p2), Comet Hunter Obs. (Jan. 16.33-36p3), Clixby Obs. (Jan. 17.03-04p5), Schafsweide Obs. (Jan. 17.95-97p2 & 21.02-04p2), Olmen Obs. (Jan. 18.17p3 & 21.08p2), program code 2 via Slooh.com Canary Islands Obs. (Jan. 21.26-27p2), Hidetaka Sato via iTelescope Obs. Auberry (Jan. 21.57p3), and St. Pardon de Conques Obs. (Jan. 22.12-13p3).
Orbital elements:
C/2023 A1 (Leonard)
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5
T 2023 Mar. 18.75138 TT Rudenko
q 1.8359255 (2000.0) P Q
z -0.0000664 Peri. 159.24586 -0.71740025 -0.21214290
+/-0.0017633 Node 318.24700 +0.41052646 +0.64082836
e 1.0001220 Incl. 94.81013 +0.56285426 -0.73779022
From 81 observations 2023 Jan. 9-22, mean residual 0".5.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2022 12 23 15 47 50.0 +47 16 34 2.1198 2.1272 77.0 26.8 19.4
...
2023 01 07 15 47 56.3 +51 00 00 1.8612 2.0403 85.8 28.7 18.9
...
2023 01 15 15 44 08.8 +54 02 44 1.7200 1.9990 91.2 29.5 18.7
...
2023 01 21 15 38 01.5 +56 54 20 1.6158 1.9707 95.5 29.8 18.5
2023 01 22 15 36 36.8 +57 26 00 1.5988 1.9662 96.2 29.8 18.5
2023 01 23 15 35 03.7 +57 58 33 1.5819 1.9618 97.0 29.9 18.4
...
2023 01 29 15 22 05.9 +61 31 54 1.4838 1.9366 101.4 29.9 18.2
...
2023 02 06 14 48 58.7 +66 55 17 1.3663 1.9070 107.2 29.6 18.0
...
2023 02 21 11 47 34.9 +74 20 23 1.2156 1.8648 115.2 28.7 17.6
подробности следуют...