C/2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object ..

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C/2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT), MPEC 2026-A16 (A/2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671
Ø кометного ядра 26562 м

C2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT) _ MPEC 2026-A16 (A2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671 _ 2026 mag _ 20 03 2026 _ 1.gif

C2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT) _ MPEC 2026-A16 (A2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671 _ 2026 mag _ 08 03 2026 _ 1.gif

C2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT) _ MPEC 2026-A16 (A2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671 _ 18 00 UTC + 3 мск _ 18 03 2026 _ 1.gif

C2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT) _ MPEC 2026-A16 (A2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671 _ 18 03 2026 _ 1.png

C2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT) _ MPEC 2026-A16 (A2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671 _ 18 03 2026 _ 2.png

C2025 Y1 (ATLAS) _ CK25Y010 _ A11wV1l object (Jan. 6.69 UT) _ MPEC 2026-A16 (A2025 Y1 _ AK25Y010), CBET 5651, MPEC 2026-F33, CBET 5671 _ 18 03 2026 _ 3.png

C/2025 Y1 (ATLAS) / CK25Y010 (q=2.601 AU, Q=16816.480 AU, TP=2027 Oct. 13.96 TT) was picked up at 1340 UT on 26 Dec. 2025 by program code 0 via ATLAS Haleakala, which observed it at 2025 Dec. 26.57-61p7, 2025 Dec. 27.59-61p4, and 2026 Jan. 13.53-54p4. This detection was confirmed by WFST (2025 Nov. 19.97p3, 2026 Jan. 5.89-96p3, 2026 Jan. 7.88-95p3, 2026 Jan. 8.90p1, 2026 Jan. 8.95p1, 2026 Jan. 10.86p1, 2026 Jan. 10.97p1, 2026 Jan. 11.92-96p3, 2026 Jan. 12.85-86p2, 2026 Jan. 12.96p1, 2026 Jan. 13.86p1, 2026 Jan. 13.93-97p2, 2026 Jan. 14.89-97p3, 2026 Jan. 15.89-96p3, 2026 Jan. 17.89-96p3, 2026 Jan. 18.89-96p3, 2026 Jan. 20.88-96p3, 2026 Jan. 21.88p1, 2026 Jan. 21.92-96p2, 2026 Jan. 22.87p1, 2026 Jan. 22.91p1, 2026 Jan. 22.95p1, 2026 Feb. 3.88-94p3, 2026 Feb. 10.86p1, 2026 Feb. 10.91p1, 2026 Feb. 10.95p1, 2026 Feb. 13.82p1, 2026 Feb. 13.89p1, 2026 Feb. 13.94p1, 2026 Feb. 15.82p1, 2026 Feb. 15.94p1, 2026 Feb. 17.83p1, 2026 Feb. 17.90p1, 2026 Feb. 17.95p1, 2026 Feb. 19.83p1, 2026 Feb. 19.94p1, 2026 Feb. 20.83p1, 2026 Feb. 20.90-94p2, 2026 Feb. 21.89p1, 2026 Feb. 21.93p1, 2026 Feb. 22.83-87p2, 2026 Feb. 22.95p1 & 2026 Feb. 23.90-94p2), A. Hale via LCO Tenerife Aqawan A#2 (2025 Dec. 27.22-24p3 & 2025 Dec. 29.23-24p3), program code 0 via Pan-STARRS 2 (PS2) (2025 Dec. 27.59-64p4 & 2026 Feb. 18.51-55p4), Baihuashan Obs. (2025 Dec. 27.87-92p3 & 2025 Dec. 29.87-91p3), program code 0 via ATLAS TDO (2025 Dec. 28.18-22p4, 2026 Feb. 20.13-17p4 & 2026 Feb. 21.13-17p4), Teplice Obs. (2025 Dec. 28.22-23p4), K. Dankov via Slooh.com Canary Islands Obs. (2025 Dec. 28.27-28p2 & 2025 Dec. 31.27-28p3), Castaneda/ZTF (2025 Dec. 28.50p1), K. Yoshimoto via iTelescope Obs. Beryl Jct. (2025 Dec. 28.55-56p3), AZM Martinsberg (2025 Dec. 29.16-18p3), J.D. Armstrong via LCO Cerro Tololo B (2025 Dec. 29.34-35p4), T. Savin via AlfaStar Obs. (2025 Dec. 30.07-08p3), T. Savin via StarBlazer Obs. (2025 Dec. 30.08-10p3), Starhopper Obs. (2025 Dec. 30.12-13p3), Hidetaka Sato via iTelescope Chile (2025 Dec. 30.35p2), Tree Gate Farm Obs. (2025 Dec. 31.47-50p3, 2026 Jan. 1.41-47p3 & 2026 Jan. 4.39-43p3), So. Utsunomiya (2025 Dec. 31.81-83p3, 2026 Jan. 3.81-83p4, 2026 Jan. 13.75-77p3, 2026 Jan. 29.70-71p2 & 2026 Feb. 12.73-74p2), L. Buzzi via Schiaparelli Obs. (Jan. 1.20-23p3), VdS Remote Obs. (Jan. 2.06-11p3), Auger Obs. (Jan. 3.29-33p2 & Feb. 25.33-35p2), M. Junius via IAS Remote Obs. (Jan. 4.11-12p3, 5.11-12p3 & 6.11-12p3), NovaCanet Obs. (Jan. 6.21-23p3), Montcabre Obs. (Jan. 8.19-25p3), program code 0 via ATLAS Mauna Loa (Jan. 12.62-65p4, 30.57-60p4, Feb. 17.43-52p8, 20.41p4 & 23.43-47p4), Pearce/Perth Obs. (Jan. 12.79-82p3, Feb. 21.66-67p3, 22.68-69p3, 25.72-73p3, 26.65-66p3, 27.64-66p3, 28.64-65p3 & March 1.64-65p3), program code 0 via ATLAS Sutherland (Jan. 14.09-10p4, Feb. 15.96-01p4, 18.98-03p4, 21.91-96p4, 28.00-02p4, March 9.03-08p4 & 11.96-01p4), program code 0 via Koeditz Obs. (Jan. 19.09-11p2 & 21.09-11p2), program code 0 via ATLAS Chile (Jan. 19.36-37p4, Feb. 12.22p1, 12.30-32p4, 18.24-29p6, 24.27-31p3 & March 2.21-24p4), Buchloe Obs. (Jan. 20.20p3), K. Shima via Gravitational-wave Optical Transient Observer Yatsugatake (Jan. 20.75-76p2, 22.78-79p2, Feb. 13.77-78p2, 15.83p2, 17.77-78p2, 19.77-78p2 & 20.76-77p2), Purple Mountain Obs. Jiama'erdeng (Jan. 25.95-99p3), Prystavski/iTelObs-Chile (Jan. 30.35-36p2, 31.32-36p2 & Feb. 15.33-34p2), Atlante Obs. (Jan. 31.15-16p3 & Feb. 1.15-17p3), Xuyi Sta. (Feb. 11.88-91p3 & 20.75-78p3), Weizmann Obs. (Feb. 12.02p1, 12.07-14p3, 13.04p1, 13.09-13p2, 25.96p1, 26.00p1, 26.04p1, 26.12p1, 26.95p1, 26.99p1, 27.03p1 & 27.08p1), M. Mattiazzo via Strathalbyn Obs. (Feb. 12.60p3), Mardella Obs. (Feb. 13.70-74p6 & 15.74-75p3), program code 1 via Schiaparelli Southern Obs. (Feb. 15.02-04p2), Novichonok & Zhornichenko/Simeis (Feb. 18.03-04p4), Tacande Obs. (Feb. 19.21-22p3), Hirao Obs. (Feb. 20.64-67p3), Hiratsuka Obs. (Feb. 21.56-57p2), Nazaret Obs. (Feb. 23.15-22p3), Sassari Obs. (Feb. 23.99-02p2), Olmen Obs. (Feb. 25.00p2, 26.06-07p3, March 1.04-05p3 & 9.04-05p3), Gromme Obs. (Feb. 27.05-06p3, March 2.07-09p3 & 5.08-09p3), Comet Hunter Obs. (Feb. 27.26-30p3), Tarbatness Obs. (Feb. 27.00-01p3), Pear Tree Obs. (Feb. 28.28-32p3), Kysuce Obs. (March 11.88-89p3), and MLS/Christensen (March 12.35-37p4).

Orbital elements:
C/2025 Y1 (ATLAS)
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Oct. 13.95770 TT Pike
q 2.6006686 (2000.0) P Q
z +0.0001189 Peri. 124.31251 +0.36237578 +0.93019766
+/-0.0000956 Node 166.55505 -0.91622450 +0.36702916
e 0.9996907 Incl. 14.55890 -0.17092824 +0.00468029
From 416 observations 2025 Nov. 19-2026 Mar. 12, mean residual 0".4.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2026 02 15 13 13 34.3 -00 37 30 5.6359 6.2975 128.4 7.1 18.0
...
2026 03 02 13 11 02.2 +00 07 37 5.3558 6.1859 144.1 5.4 17.9
...
2026 03 10 13 08 51.4 +00 36 08 5.2283 6.1263 152.5 4.3 17.8
...
2026 03 16 13 06 53.5 +00 59 00 5.1440 6.0816 158.7 3.4 17.7
2026 03 17 13 06 32.4 +01 02 54 5.1310 6.0741 159.7 3.3 17.7
2026 03 18 13 06 10.9 +01 06 50 5.1183 6.0666 160.7 3.1 17.7
...
2026 03 24 13 03 54.5 +01 30 44 5.0480 6.0218 166.5 2.2 17.6
...
2026 04 01 13 00 37.3 +02 02 55 4.9714 5.9620 171.8 1.4 17.5
...
2026 04 16 12 54 07.0 +03 00 48 4.8806 5.8497 163.5 2.8 17.4



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