P/2021 L4 (PanSTARRS) = P/2012 Q3 _ PK12Q030 ..

[Gremlin]

P/2021 L4 (PanSTARRS) _ PK21L040 _ P11h3rz object (June 23.12 UT), MPEC 2021-M77, CBET 4986 = P/2012 Q3 _ PK12Q030 _ object no data, MPEC 2023-B135, CBET 5210

P2021 L4 (PanSTARRS) _ PK21L040 _ P11h3rz object (June 23.12 UT), MPEC 2021-M77, CBET 4986 = P2012 Q3 _ PK12Q030 _ object no data _ 2025 mag _ 08 10 2022 _ 1.gif

P2021 L4 (PanSTARRS) _ PK21L040 _ P11h3rz object (June 23.12 UT), MPEC 2021-M77, CBET 4986 = P2012 Q3 _ PK12Q030 _ object no data _ 2023 mag _ 08 02 2023 _ 1.png

P2021 L4 (PanSTARRS) = P2012 Q3 _ PK12Q030 _ 12 00 UTC + 3 мск _ 28 01 2023 _ 1.gif

P2021 L4 (PanSTARRS) _ PK21L040 _ P11h3rz object (June 23.12 UT), MPEC 2021-M77, CBET 4986 = P2012 Q3 _ PK12Q030, MPEC 2023-B135, CBET 5210 _ Encke-type Comet (JPL) _ P 2056.83 _ 28 01 2023 _ 2.png

P2021 L4 (PanSTARRS) _ PK21L040 _ P11h3rz object (June 23.12 UT), MPEC 2021-M77, CBET 4986 = P2012 Q3 _ PK12Q030, MPEC 2023-B135, CBET 5210 _ Encke-type Comet (JPL) _ P 2056.83 _ 28 01 2023 _ 1.png

P/2012 Q3 / PK12Q030 was picked up at 1200 UT on 18 Aug. 2012 by program code 6 via Canada-France-Hawaii Telescope, which observed it at 2012 Aug. 18.50-54p2. This detection was confirmed by program code 5 via Canada-France-Hawaii Telescope (2012 Aug. 28.47p1, 2012 Sept. 12.40p1 & 2012 Sept. 14.43p1).

Orbital elements:
P/2021 L4 (PANSTARRS)
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5
T 2025 Apr. 20.73682 TT Rudenko
q 2.7919881 (2000.0) P Q
n 0.17493009 Peri. 234.40952 -0.43196638 -0.86348663
a 3.1663557 Node 243.20588 +0.89269016 -0.36822432
e 0.1182330 Incl. 16.95947 +0.12848862 -0.34467620
P 5.63
From 49 observations 2012 Aug. 18-2022 Sept. 17, mean residual 0".3.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2022 12 28 20 45 38.7 -03 39 59 4.2018 3.4939 39.1 10.2 22.1
...
2023 01 12 21 04 05.9 -02 37 11 4.3080 3.4861 29.5 8.0 22.1
...
2023 01 20 21 14 09.9 -01 57 08 4.3507 3.4817 24.8 6.8 22.1
...
2023 01 26 21 21 46.8 -01 24 14 4.3760 3.4783 21.5 5.9 22.1
2023 01 27 21 23 03.2 -01 18 32 4.3796 3.4778 20.9 5.8 22.1
2023 01 28 21 24 19.7 -01 12 46 4.3831 3.4772 20.4 5.7 22.1
...
2023 02 03 21 31 59.0 -00 36 51 4.4006 3.4737 17.5 4.9 22.1
...
2023 02 11 21 42 12.4 +00 14 16 4.4149 3.4688 14.6 4.1 22.1
...
2023 02 26 22 01 19.0 +01 59 16 4.4131 3.4593 13.7 3.9 22.1


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