C/2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object ..

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C/2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT), MPEC 2025-X47, CBET 5643
Ø кометного ядра 1027 м

C2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT) _ MPEC 2025-X47, CBET 5643 _ 2025 mag _ 09 12 2025 _ 1.gif

C2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT) _ MPEC 2025-X47, CBET 5643 _ 18 00 UTC + 3 мск _ 05 12 2025 _ 1.gif

C2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT) _ MPEC 2025-X47, CBET 5643 _ 05 12 2025 _ 2.png

C2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT) _ MPEC 2025-X47, CBET 5643 _ 05 12 2025 _ 3.png

C2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT) _ MPEC 2025-X47, CBET 5643 _ 06 12 2025 _ 1.png

C2025 W2 (ATLAS) _ CK25W020 _ A11vZ28 object (Dec. 5.69 UT) _ MPEC 2025-X47, CBET 5643 _ 05 12 2025 _ 2.png

C/2025 W2 (ATLAS) / CK25W020 (i=94.7°, q=1.453 AU, Q=53.099 AU, TP=2025 Dec. 7.84 TT) was picked up at 1438 UT on 28 Nov. by program code 0 via ATLAS Mauna Loa, which observed it at Nov. 28.61-64p4. This detection was confirmed by E.J. Christensen via the Mt. Lemmon Survey (MLS) (Oct. 26.52-53p4), Pan-STARRS 1 (PS1) (Nov. 8.58-62p4), E.J. Christensen via the Catalina Sky Survey (CSS) (Nov. 14.48p2), program code 0 via the Zwicky Transient Facility (ZTF) (Nov. 27.47p2 & 28.43-47p2), Farra d'Isonzo Obs. (Nov. 29.04-05p3), Monte Viseggi Obs. (Nov. 29.76p2), San Marcello Pistoiese Obs. (Nov. 29.92-93p2), Cewanee Obs. at DSNM (Nov. 30.46p2), Hidetaka Sato via iTelescope Obs. Beryl Jct. (Dec. 1.55p2), 29PREMOTE Obs. (Dec. 1.73-80p5), and Muensterschwarzach Obs. (Dec. 2.21-23p5).

Orbital elements:
C/2025 W2 (ATLAS)
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 7.84086 TT Pike
q 1.4531832 (2000.0) P Q
n 0.00720467 Peri. 41.03579 +0.04281140 +0.07151237
a 26.5497179 Node 90.83984 +0.43243450 -0.90048899
e 0.9452656 Incl. 94.70684 +0.90064843 +0.42895869
P 137
From 38 observations 2025 Oct. 26-Dec. 2, mean residual 0".5.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2025 11 05 09 27 57.4 +37 32 53 1.1499 1.5224 90.3 40.6 20.0
...
2025 11 20 10 43 16.2 +56 59 54 0.9606 1.4741 98.3 41.6 19.5
...
2025 11 28 12 14 40.8 +67 19 56 0.9334 1.4596 98.9 41.9 19.4
...
2025 12 04 14 10 39.7 +71 37 36 0.9513 1.4542 97.3 42.2 19.4
2025 12 05 14 32 44.6 +71 51 17 0.9573 1.4537 96.9 42.3 19.4
2025 12 06 14 54 48.5 +71 56 01 0.9641 1.4534 96.4 42.4 19.4
...
2025 12 12 16 50 11.6 +69 49 12 1.0203 1.4543 93.0 42.5 19.6
...
2025 12 20 18 20 29.0 +63 49 11 1.1276 1.4629 87.4 42.2 19.8
...
2026 01 04 19 33 08.4 +53 36 46 1.3811 1.5009 76.8 39.6 20.4



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