C/2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object ..

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C/2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object, MPEC 2023-B225, CBET 5211, CBET 5212

C2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object (Jan. 31.90 UT) _ MPEC 2023-B225 _ CBET 5211 _ 2023 mag _ 07 02 2023 _ 1.gif

C2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object (Jan. 31.90 UT) _ MPEC 2023-B225 _ CBET 5211 _ 2023 mag _ 08 02 2023 _ 1.png

C2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object (Jan. 31.90 UT), MPEC 2023-B225, CBET 5211 _ 22 00 UTC + 3 мск _ 31 01 2023 _ 1.gif

C2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object (Jan. 31.90 UT) _ MPEC 2023-B225 _ CBET 5211 _ Halley-type Comet (JPL) _ P 87.077 _ 01 02 2023 _ 2.png

C2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object (Jan. 31.90 UT) _ MPEC 2023-B225 _ CBET 5211 _ Halley-type Comet (JPL) _ P 87.077 _ 01 02 2023 _ 1.png

C2022 Y2 (Lemmon) _ CK22Y020 _ C8Q7YP2 object (Jan. 31.90 UT) _ MPEC 2023-B225 _ CBET 5211 _ 2023 mag _ 01 02 2023 _ 1.png

C/2022 Y2 (Lemmon) / CK22Y020 (i=165.9°, q=2.545 AU, Q=39.254 AU, TP=2023 Mar. 22.64 TT) was picked up at 1114 UT on 24 Dec. 2022 by program code 1 via the Mt. Lemmon Survey (MLS), which observed it at Dec. 24.47-49p8. This detection was confirmed by Steward Obs. Mt. Lemmon Station (Dec. 24.53-54p4, 25.40-42p4 & Jan. 9.36-37p4), Hidetaka Sato via iTelescope Obs. Auberry (Dec. 26.43-44p2), SATINO-1 (Dec. 27.21-23p2 & Jan. 21.94-01p3), Farpoint Obs. (Dec. 29.39p3), program code 1 via Univ. of Hawaii 88-inch telescope (UH88) (Dec. 31.53p2), Sormano Obs. (Jan. 5.95p2), Visnjan Obs. (Jan. 10.93-94p3), St. Pardon de Conques Obs. (Jan. 12.02-03p2), Comet Hunter Obs. (Jan. 16.19-22p3), Schafsweide Obs. (Jan. 18.83-86p2, 20.93p1 & 20.98p1), Cosmos Obs. (Jan. 18.94-98p5), Dave Balam via Dominion Astrophysical Obs. (DomAO) (Jan. 19.39-41p5, 29.30-32p5 & 30.29-31p5), Southern Utsunomiya Obs. (Jan. 20.72-73p2, 21.54-57p2, 28.63-64p2 & 29.55-56p2), Great Shefford Obs. (Jan. 21.02-03p2), Tebbutt Obs. (Jan. 22.18-20p3), Chante-Perdrix Obs. (Jan. 24.82-85p3), PASTIS Obs. (Jan. 24.91-92p3), program code 1 via the Catalina Sky Survey (CSS) (Jan. 25.31-33p4 & 27.26-28p4), Farra d'Isonzo Obs. (Jan. 26.86-91p3), B. Lutkenhoner via Slooh.com Canary Islands Obs. (Jan. 27.03-05p2), Schiaparelli Obs. (Jan. 28.04p1 & 28.12-15p3), Olmen Obs. (Jan. 28.85-87p4 & 30.90-92p4), Muensterschwarzach Obs. (Jan. 29.80-82p4), Modra Obs. (Jan. 30.01-03p4), and AstroColauri Obs. (Jan. 31.78-82p2).

Orbital elements:
C/2022 Y2 (Lemmon)
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5
T 2023 Mar. 22.63600 TT Bell
q 2.5449810 (2000.0) P Q
n 0.01133484 Peri. 105.55067 -0.33787939 +0.93005906
a 19.6272307 Node 216.34812 +0.74296109 +0.35769534
e 0.8703342 Incl. 165.90700 +0.57779437 +0.08392964
P 87.0
From 102 observations 2022 Dec. 24-2023 Jan. 29, mean residual 0".6.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 01 01 10 58 06.6 +26 46 53 2.0070 2.6700 122.7 18.0 19.3
...
2023 01 16 10 11 57.7 +33 58 15 1.7552 2.6287 146.0 12.1 18.9
...
2023 01 24 09 36 11.6 +37 46 20 1.6813 2.6099 155.7 8.9 18.8
...
2023 01 30 09 04 46.6 +40 08 06 1.6600 2.5973 157.4 8.4 18.7
2023 01 31 08 59 15.8 +40 27 59 1.6594 2.5953 157.1 8.5 18.7
2023 02 01 08 53 41.7 +40 46 40 1.6597 2.5933 156.5 8.7 18.7
...
2023 02 07 08 19 42.9 +42 11 10 1.6789 2.5825 150.4 10.9 18.7
...
2023 02 15 07 35 57.3 +42 49 38 1.7484 2.5701 138.2 14.9 18.8
...
2023 03 02 06 31 24.9 +41 19 01 1.9839 2.5534 114.1 20.8 19.1


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