MPEC 2021-L11 : COMET C/2021 J1 (Maury-Attard)
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M.P.E.C. 2021-L11 Issued 2021 June 2, 04:33 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2021 J1 (Maury-Attard)
A. Maury and G. Attard report the discovery of a comet in stacked survey
images taken by MAP (W94) on May 9 UT. They report a condensed 6" coma and a
broad 10" tail at position angle 30-330 deg. Additional reports of cometary
features are as follows:
OC Date Reporter Coma Tail PA Exposures
Y00 2021-05-11 C. Jacques 12" 270 15x35s
L81 2021-05-12 L. Demetz 4" 5" 310 17x60s
X02 2021-05-16 E. Guido 7" 27x30s
Observations:
CK21J010*KC2021 05 09.33269 20 05 56.87 -35 16 23.5 VEL011W94
CK21J010 KC2021 05 09.33839 20 05 56.65 -35 16 41.3 17.6 GVEL011W94
CK21J010 KC2021 05 09.34402 20 05 56.37 -35 16 59.2 19.4 GVEL011W94
CK21J010 KC2021 05 09.36523 20 05 55.28 -35 18 05.2 19.4 GVEL011W95
CK21J010 KC2021 05 09.37053 20 05 55.00 -35 18 21.9 19.1 GVEL011W95
CK21J010 KC2021 05 09.37585 20 05 54.71 -35 18 38.0 18.9 GVEL011W95
CK21J010 KC2021 05 10.28904 20 05 07.98 -36 05 55.7 19.3 GVEL011W95
CK21J010 KC2021 05 10.29430 20 05 07.72 -36 06 12.6 19.1 GVEL011W95
CK21J010 KC2021 05 10.29957 20 05 07.37 -36 06 29.1 19.0 GVEL011W95
CK21J010 KC2021 05 10.35201 20 05 04.41 -36 09 14.1 VEL011W95
CK21J010 KC2021 05 10.35730 20 05 04.13 -36 09 29.9 19.1 GVEL011W95
CK21J010 KC2021 05 10.36261 20 05 03.86 -36 09 47.2 19.0 GVEL011W95
CK21J010 KC2021 05 11.16527820 04 19.26 -36 51 50.7 19.3 GXEL011Y00
CK21J010 KC2021 05 11.16794020 04 19.16 -36 51 58.8 19.5 GXEL011Y00
CK21J010 KC2021 05 11.17105320 04 19.00 -36 52 09.4 19.5 GXEL011Y00
CK21J010 KC2021 05 12.08834 20 03 23.68 -37 40 46.3 VEL011L81
CK21J010 KC2021 05 12.10029 20 03 22.88 -37 41 24.9 20.3 GVEL011L81
CK21J010 KC2021 05 12.18341 20 03 17.98 -37 45 49.0 19.6 GVEL011W95
CK21J010 KC2021 05 12.18871 20 03 17.65 -37 46 04.7 19.0 GVEL011W95
CK21J010 KC2021 05 12.19398 20 03 17.27 -37 46 22.3 19.1 GVEL011W95
CK21J010 1C2021 05 13.67463 20 01 38.09 -39 06 00.9 VEL011Q62
CK21J010 1C2021 05 13.67908 20 01 37.77 -39 06 15.7 19.1 GVEL011Q62
CK21J010 KC2021 05 14.17580 20 01 02.10 -39 33 13.6 19.1 GVEL011W95
CK21J010 KC2021 05 14.18113 20 01 01.70 -39 33 31.3 19.1 GVEL011W95
CK21J010 KC2021 05 14.18646 20 01 01.36 -39 33 49.2 19.6 GVEL011W95
CK21J010 KC2021 05 14.33803 20 00 49.66 -39 42 06.1 19.0 GVEL011W94
CK21J010 KC2021 05 14.34364 20 00 49.30 -39 42 24.7 18.4 GVEL011W94
CK21J010 KC2021 05 14.34931 20 00 48.91 -39 42 43.7 18.9 GVEL011W94
CK21J010 KC2021 05 15.23022 19 59 41.11 -40 30 57.6 VEL011W95
CK21J010 KC2021 05 15.23554 19 59 40.76 -40 31 15.9 18.3 GVEL011W95
CK21J010 KC2021 05 15.24087 19 59 40.19 -40 31 33.6 17.4 GVEL011W95
CK21J010 {C2021 05 15.76606 19 58 57.10 -41 00 30.6 20.2 GVEL011Q62
CK21J010 {C2021 05 15.77035 19 58 56.78 -41 00 45.6 20.5 GVEL011Q62
CK21J010 KC2021 05 16.22631 19 58 18.77 -41 25 59.2 18.1 GVEL011W95
CK21J010 KC2021 05 16.23158 19 58 18.09 -41 26 16.8 VEL011W95
CK21J010 KC2021 05 16.23687 19 58 17.77 -41 26 35.3 19.4 GVEL011W95
CK21J010 KC2021 05 16.32606 19 58 09.77 -41 31 32.1 19.8 GVEL011X02
CK21J010 KC2021 05 16.33734 19 58 08.82 -41 32 09.4 19.7 GVEL011X02
CK21J010 KC2021 05 17.29483 19 56 43.13 -42 25 30.2 19.1 GVEL011W95
CK21J010 KC2021 05 17.30012 19 56 42.63 -42 25 47.2 18.4 GVEL011W95
CK21J010 KC2021 05 17.30541 19 56 42.09 -42 26 05.7 18.8 GVEL011W95
CK21J010 KC2021 05 18.30799 19 55 05.77 -43 22 18.6 19.4 GVEL011W95
CK21J010 KC2021 05 18.31327 19 55 05.15 -43 22 35.7 19.3 GVEL011W95
CK21J010 KC2021 05 18.31853 19 55 04.64 -43 22 53.7 18.9 GVEL011W95
CK21J010 KC2021 05 18.65024 19 54 31.26 -43 41 30.6 19.3 RqEL011E94
CK21J010 KC2021 05 18.66071 19 54 30.23 -43 42 04.8 19.3 RqEL011E94
CK21J010 KC2021 05 18.66688 19 54 29.42 -43 42 28.7 19.3 RqEL011E94
CK21J010 KC2021 05 19.36050 19 53 16.96 -44 21 38.9 19.9 GVEL011W95
CK21J010 KC2021 05 19.36581 19 53 16.41 -44 21 56.8 19.5 GVEL011W95
CK21J010 KC2021 05 19.37181 19 53 15.65 -44 22 16.4 19.7 GVEL011W95
CK21J010 KC2021 05 20.36662 19 51 25.55 -45 18 36.2 19.4 GVEL011W95
CK21J010 KC2021 05 20.37209 19 51 24.85 -45 18 54.9 19.1 GVEL011W95
CK21J010 KC2021 05 20.37740 19 51 24.20 -45 19 12.3 19.3 GVEL011W95
CK21J010 KC2021 05 22.17116319 47 46.78 -47 01 08.6 19.3 GXEL011Y00
CK21J010 KC2021 05 22.17607119 47 46.18 -47 01 25.5 20.0 GXEL011Y00
CK21J010 KC2021 05 22.18301519 47 45.23 -47 01 48.6 20.2 GXEL011Y00
CK21J010 KC2021 05 22.18832219 47 44.47 -47 02 07.7 20.2 GXEL011Y00
CK21J010 KC2021 05 23.38021 19 45 04.45 -48 09 56.6 19.2 GVEL011W95
CK21J010 KC2021 05 23.38554 19 45 03.75 -48 10 14.2 19.5 GVEL011W95
CK21J010 KC2021 05 23.39084 19 45 02.89 -48 10 32.7 19.1 GVEL011W95
CK21J010 KC2021 05 24.31700 19 42 50.60 -49 03 11.6 20.5 GVEL011X03
CK21J010 KC2021 05 24.32623 19 42 49.10 -49 03 42.1 19.8 GVEL011X03
CK21J010 KC2021 05 24.33420 19 42 47.89 -49 04 09.3 19.7 GVEL011X03
CK21J010 KC2021 05 25.40900 19 40 03.49 -50 05 02.0 20.2 GVEL011X03
CK21J010 KC2021 05 25.41950 19 40 01.89 -50 05 39.8 20.1 GVEL011X03
CK21J010 KC2021 05 25.42999 19 40 00.27 -50 06 14.9 20.4 GVEL011X03
CK21J010 KC2021 05 30.22976 19 25 23.58 -54 33 14.1 19.6 GVEL011W95
CK21J010 KC2021 05 30.23510 19 25 22.28 -54 33 30.1 19.1 GVEL011W95
CK21J010 KC2021 05 30.24041 19 25 21.33 -54 33 47.2 19.6 GVEL011W95
CK21J010 KC2021 06 01.06519 19 18 38.68 -56 11 30.8 18.5 GVEL011W95
CK21J010 KC2021 06 01.07047 19 18 37.57 -56 11 47.8 19.7 GVEL011W95
CK21J010 KC2021 06 01.07575 19 18 36.24 -56 12 04.9 19.6 GVEL011W95
Observer details:
E94 Possum Observatory, Gisborne. Observer J. Drummond. 0.41-m f/4.5
Newtonian reflector + CCD.
L81 Skygems Namibia Remote Observatory. Observers L. Buzzi, L. Demetz.
Measurers A. Aletti, L. Buzzi. 0.51-m f/6.7 astrograph + CCD.
Q62 iTelescope Observatory, Siding Spring. Observers H. Sato, N. Paul.
0.51-m f/6.8 astrograph + CCD + f/4.5 focal reducer, 0.5-m f/6.8
astrograph + CCD.
W94 MAP, San Pedro de Atacama. Observers A. Maury, G. Attard. Measurers A.
Maury, G. Attard, D. Parrott. 0.28-m f/2.2 Schmidt + CCD.
W95 Observatorio Panameno, San Pedro de Atacama. Observers A. Maury, G.
Attard, J. Fabrega. Measurers A. Maury, G. Attard, D. Parrott. 0.40-m
f/3.8 reflector + CCD.
X02 Telescope Live, El Sauce. Observers E. Guido, M. Rocchetto, E. Bryssinck,
M. Fulle, G. Milani, C. Nassef, G. Savini, A. Valvasori. Measurer E.
Guido. 0.61-m f/6.5 astrograph + CCD.
X03 Observatoire SADR, Poroto. Observers J. L. Virlichie, P. Traverse.
0.35-m f/4.7 Newtonian reflector + CCD.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel, J.
Barros. Measurer C. Jacques. 0.45-m f/2.9 reflector + CCD.
Orbital elements:
C/2021 J1 (Maury-Attard)
Epoch 2021 Mar. 7.0 TT = JDT 2459280.5
T 2021 Feb. 19.45631 TT Rudenko
q 1.7403767 (2000.0) P Q
n 0.00729229 Peri. 147.31134 +0.00084728 -0.05570554
a 26.3366220 Node 88.31687 -0.98711322 -0.15981936
e 0.9339180 Incl. 92.71459 +0.16002118 -0.98557327
P 135
From 72 observations 2021 May 9-June 1, mean residual 0".6.
C/2021 J1 (Maury-Attard)
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5
T 2021 Feb. 19.45473 TT Rudenko
q 1.7403827 (2000.0) P Q
n 0.00730104 Peri. 147.31011 +0.00084512 -0.05572451
a 26.3155716 Node 88.31612 -0.98710985 -0.15983982
e 0.9338649 Incl. 92.71540 +0.16004195 -0.98556888
P 135
From 72 observations 2021 May 9-June 1, mean residual 0".6.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2021 05 03 20 09 45.7 -30 05 23 1.4530 1.9610 104.2 29.9 19.2
...
2021 05 18 19 55 35.9 -43 04 55 1.3288 2.0511 121.8 24.8 19.2
...
2021 05 26 19 38 29.1 -50 38 22 1.3036 2.1034 130.0 21.6 19.3
...
2021 06 01 19 18 53.3 -56 08 03 1.3074 2.1444 134.6 19.7 19.4
2021 06 02 19 14 55.5 -57 00 29 1.3100 2.1513 135.1 19.4 19.4
2021 06 03 19 10 44.5 -57 51 55 1.3132 2.1583 135.7 19.2 19.4
...
2021 06 09 18 40 40.0 -62 33 53 1.3440 2.2010 137.4 18.2 19.6
...
2021 06 17 17 47 04.0 -67 12 56 1.4147 2.2597 136.1 18.1 19.8
...
2021 07 02 15 51 16.5 -70 03 01 1.6229 2.3745 126.7 20.1 20.3
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-L11
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