C/2025 A4 (PanSTARRS) _ CK25A040 _ P2255WF object ..

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C/2025 A4 (PanSTARRS) _ CK25A040 _ P2255WF object (Jan. 18.71 UT), MPEC 2025-B11, CBET 5496
Ø кометного ядра 3380 м

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C/2025 A4 (PANSTARRS) / CK25A040 (q=3.822 AU, Q=21.903 AU, TP=2025 Jan. 14.07 TT) was picked up at 1506 UT on 3 Jan. by PS2, which observed it at Jan. 3.63-65p3. This detection was confirmed by program code 6 via the Mt. Lemmon Survey (MLS) (Dec. 21.54-55p3), Visnjan Obs. (Jan. 4.05-06p4), Weryk/CFHT (Jan. 4.64p3), E.J. Christensen via the Mt. Lemmon Survey (MLS) (Jan. 5.47-48p4), PS1 (Jan. 5.61-64p3), R. Weryk via Univ. of Hawaii 88-inch telescope (UH88) (Jan. 6.60p2), F.D. Romanov via the Liverpool Telescope (Jan. 7.22p3), Sormano2 Obs. (Jan. 8.09-13p3), Schiaparelli Obs. (Jan. 8.15p1 & 8.20p1), and F. Ocana via Calar Alto Schmidt (Jan. 16.22-23p2).

Orbital elements:
C/2025 A4 (PANSTARRS)
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Jan. 14.06524 TT Veres
q 3.8224333 (2000.0) P Q
n 0.02719473 Peri. 102.98698 -0.85296552 -0.15657539
a 10.9516505 Node 69.86355 -0.13822423 -0.85213494
e 0.6509719 Incl. 32.02890 +0.50333278 -0.49934977
P 36.2
From 32 observations 2024 Dec. 21-2025 Jan. 16, mean residual 0".3.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2024 12 19 13 19 33.2 +25 50 22 3.8472 3.8269 81.5 14.7 21.2
...
2025 01 03 13 33 06.9 +25 57 29 3.6647 3.8232 91.8 14.9 21.0
...
2025 01 11 13 39 09.2 +26 11 22 3.5694 3.8225 97.4 14.8 21.0
...
2025 01 17 13 43 03.7 +26 26 07 3.4999 3.8225 101.7 14.6 20.9
2025 01 18 13 43 39.5 +26 28 55 3.4885 3.8225 102.4 14.6 20.9
2025 01 19 13 44 14.3 +26 31 48 3.4772 3.8226 103.1 14.5 20.9
...
2025 01 25 13 47 22.1 +26 51 04 3.4109 3.8232 107.4 14.2 20.9
...
2025 02 02 13 50 33.0 +27 21 13 3.3274 3.8248 113.2 13.7 20.8
...
2025 02 17 13 53 13.8 +28 26 27 3.1912 3.8300 123.8 12.4 20.8



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