[Iaude] MPEC N01: COMET P/2020 M2 = P/2012 SB6 (Lemmon)
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Jun 30 20:53:53 EDT 2020
M.P.E.C. 2020-N01 Issued 2020 July 1, 00:11 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET P/2020 M2 = P/2012 SB6 (Lemmon)
H. Sato, Tokyo, Japan reports he recovery of comet P/2012 SB6 (Lemmon) on
exposures taken on June 29 UT from iTelescope Observatory, Siding Spring (Q62)
and June 30 UT from iTelescope Observatory, Mayhill (H06). He notes a strongly
condensed 12" coma and a hint of a 10" fan-like westward tail.
Observations:
PK20M020*1C2020 06 29.82484 02 52 33.97 +19 24 15.6 VEN001Q62
PK20M020 1C2020 06 29.82758 02 52 34.24 +19 24 17.9 17.8 TVEN001Q62
PK20M020 |C2020 06 30.43562 02 53 41.89 +19 31 19.6 VEN001H06
PK20M020 |C2020 06 30.43954 02 53 42.33 +19 31 22.2 VEN001H06
PK20M020 |C2020 06 30.44347 02 53 42.74 +19 31 25.1 17.6 TVEN001H06
Observer details:
H06 iTelescope Observatory, Mayhill. Observer H. Sato. 0.43-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
Orbital elements:
P/2020 M2
Epoch 2012 Nov. 9.0 TT = JDT 2456240.5
T 2012 Oct. 31.97307 TT Rudenko
q 2.4064482 (2000.0) P Q
n 0.12745359 Peri. 12.78702 +0.92559062 -0.37720050
a 3.9105214 Node 9.55718 +0.32834362 +0.75846559
e 0.3846222 Incl. 10.98970 +0.18834136 +0.53146001
P 7.73
>From 182 observations 2012 Sept. 14-2020 June 30, mean residual 0".5.
P/2020 M2
Epoch 2020 May 31.0 TT = JDT 2459000.5
T 2020 June 19.24735 TT Rudenko
q 2.2768753 (2000.0) P Q
n 0.13174734 Peri. 14.38773 +0.92385967 -0.38177228
a 3.8250884 Node 8.21140 +0.32973961 +0.75803134
e 0.4047522 Incl. 10.92892 +0.19430673 +0.52880849
P 7.48
>From 182 observations 2012 Sept. 14-2020 June 30, mean residual 0".5.
P/2020 M2
Epoch 2027 Dec. 21.0 TT = JDT 2461760.5
T 2027 Dec. 21.34816 TT Rudenko
q 2.2844444 (2000.0) P Q
n 0.13132847 Peri. 14.57971 +0.92304201 -0.38376311
a 3.8332174 Node 8.14125 +0.33126994 +0.75746540
e 0.4040400 Incl. 10.91719 +0.19558547 +0.52817804
P 7.50
>From 182 observations 2012 Sept. 14-2020 June 30, mean residual 0".5.
P/2020 M2
Epoch 2020 May 31.0 TT = JDT 2459000.5
T 2020 June 19.24735 TT Rudenko
q 2.2768753 (2000.0) P Q
n 0.13174734 Peri. 14.38773 +0.92385967 -0.38177228
a 3.8250884 Node 8.21140 +0.32973961 +0.75803134
e 0.4047522 Incl. 10.92892 +0.19430673 +0.52880849
P 7.48
>From 182 observations 2012 Sept. 14-2020 June 30, mean residual 0".5.
P/2020 M2
Epoch 2012 Nov. 9.0 TT = JDT 2456240.5
T 2012 Oct. 31.97307 TT Rudenko
q 2.4064482 (2000.0) P Q
n 0.12745359 Peri. 12.78702 +0.92559062 -0.37720050
a 3.9105214 Node 9.55718 +0.32834362 +0.75846559
e 0.3846222 Incl. 10.98970 +0.18834136 +0.53146001
P 7.73
>From 182 observations 2012 Sept. 14-2020 June 30, mean residual 0".5.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2020 06 01 01 58 44.8 +13 22 35 2.9864 2.2807 38.4 16.0 18.0
...
2020 06 16 02 26 48.5 +16 36 43 2.8738 2.2770 45.3 18.5 17.9
...
2020 06 24 02 41 44.4 +18 15 05 2.8097 2.2771 49.1 19.7 17.8
...
2020 06 30 02 52 53.2 +19 26 16 2.7600 2.2782 51.9 20.6 17.8
2020 07 01 02 54 44.3 +19 37 54 2.7516 2.2785 52.4 20.7 17.8
2020 07 02 02 56 35.3 +19 49 28 2.7431 2.2787 52.9 20.8 17.8
...
2020 07 08 03 07 38.7 +20 57 32 2.6917 2.2809 55.8 21.6 17.7
...
2020 07 16 03 22 14.0 +22 24 35 2.6211 2.2851 59.8 22.6 17.7
...
2020 07 31 03 48 50.4 +24 56 21 2.4834 2.2968 67.6 24.1 17.6
(Last issue was M.P.E.C. 2020-M141)
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-N01
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