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kometare Aktivität: COMET C/2021 S4 (Tsuchinshan)
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Autor:  Michael Möller [ 08. Oktober 2021, 09:09:30 AM ]
Betreff des Beitrags:  kometare Aktivität: COMET C/2021 S4 (Tsuchinshan)

COMET C/2021 S4 (Tsuchinshan)

R. Haver and R. Gorelli report cometary activity of an asteroidal NEOCP
candidate in forty 90-second images taken on Oct. 2 UT by Frasso Sabino (157),
noting a diffuse 8" coma. Prediscovery images were reported dating back to early
September. Additional reports of cometary features are as follows:

OC Date Reporter Coma Tail PA Exposures

F52 2021-09-08 R. Weryk 0".5 4x45s
F51 2021-09-30 R. Weryk 0".4 4x60s


Orbital elements:

C/2021 S4 (Tsuchinshan)
Epoch 2024 Jan. 11.0 TT = JDT 2460320.5
T 2023 Dec. 27.95259 TT Rudenko
q 6.7719600 (2000.0) P Q
z +0.0089731 Peri. 71.77783 +0.22527628 -0.97387959
+/-0.0000000 Node 5.44661 +0.74166676 +0.15248214
e 0.9392347 Incl. 17.43856 +0.63180773 +0.16824904
From 34 observations 2021 Sept. 8-Oct. 7, mean residual 0".7.

C/2021 S4 (Tsuchinshan)
Epoch 2021 July 5.0 TT = JDT 2459400.5
T 2023 Dec. 26.37088 TT Rudenko
q 6.7765939 (2000.0) P Q
z +0.0091677 Peri. 71.60610 +0.22801471 -0.97324023
+/-0.0000000 Node 5.45775 +0.74121029 +0.15451847
e 0.9378740 Incl. 17.44196 +0.63136091 +0.17008086
From 34 observations 2021 Sept. 8-Oct. 7, mean residual 0".7.

MPEC 2021-T167

Autor:  Michael Möller [ 09. Oktober 2021, 01:32:38 AM ]
Betreff des Beitrags:  Re: kometare Aktivität: COMET C/2021 S4 (Tsuchinshan)

auch CBET 5052

mag 20 Anfang Oktober

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