MPEC 2023-L19 : COMET C/2023 K1 (ATLAS)
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M.P.E.C. 2023-L19 Issued 2023 June 5, 19:31 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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/2023 K1 (ATLAS)
N. Erasmus reports the discovery of a comet in four 30-second survey
images taken on May 27 UT by ATLAS South Africa (M22), noting a diffuse
15" coma extending towards position angle 285 deg. Additional reports
of cometary features are as follows:
OC Date Reporter Coma Tail PA Exposures
M28 2023-05-28 N. Erasmus 10" 5x30s
W57 2023-05-29 F. Ocana 14" 13" 265-295 15x116s
Q62 2023-05-29 H. Sato 12" 20" 200-265 12x30s
Q62 2023-05-29 N. Paul 9" 15x60s
M21 2023-05-29 A. Aletti 11" 30" 220-290 18x60s
W85 2023-05-30 M. Micheli 8" 15" 265
W87 2023-05-30 M. Micheli 8" 20" 270
Q63 2023-05-30 M. Micheli 10" 15" 260
X07 2023-06-01 T. Prystavski 18" 30" 240-283
Observations:
CK23K010* C2023 05 27.09383122 58 48.053-61 49 58.98 18.64cVEL019M22
CK23K010 C2023 05 27.09532822 58 47.837-61 50 02.11 17.63cVEL019M22
CK23K010 C2023 05 27.10174322 58 47.314-61 50 17.38 17.76cVEL019M22
CK23K010 C2023 05 27.11319722 58 46.226-61 50 43.26 17.76cVEL019M22
CK23K010 C2023 05 28.16594 22 57 11.87 -62 30 29.9 18.0 GVEL019M28
CK23K010 C2023 05 28.16755 22 57 11.70 -62 30 33.8 17.9 GVEL019M28
CK23K010 C2023 05 28.16916 22 57 11.51 -62 30 37.4 17.9 GVEL019M28
CK23K010 C2023 05 28.17076 22 57 11.36 -62 30 41.0 18.0 GVEL019M28
CK23K010 C2023 05 28.17236 22 57 11.19 -62 30 44.8 17.9 GVEL019M28
CK23K010 C2023 05 29.01273 22 55 48.38 -63 03 12.7 18.1 GVEL019M28
CK23K010 C2023 05 29.01436 22 55 48.13 -63 03 16.9 18.0 GVEL019M28
CK23K010 C2023 05 29.01597 22 55 47.90 -63 03 20.5 18.0 GVEL019M28
CK23K010 C2023 05 29.01772 22 55 47.86 -63 03 24.6 18.0 GVEL019M28
CK23K010 C2023 05 29.01933 22 55 47.62 -63 03 28.3 18.0 GVEL019M28
CK23K010 KC2023 05 29.14369 22 55 34.66 -63 08 24.4 VEL019M21
CK23K010 KC2023 05 29.15585 22 55 33.42 -63 08 53.2 18.4 GVEL019M21
CK23K010 C2023 05 29.38721 22 55 09.06 -63 17 54.4 17.2 GVEL019W79
CK23K010 C2023 05 29.39315 22 55 08.18 -63 18 10.0 17.2 GVEL019W79
CK23K010 1C2023 05 29.39793122 55 07.507-63 18 23.50 18.3 GVEL019W57
CK23K010 1C2023 05 29.41000622 55 06.283-63 18 52.72 18.5 GVEL019W57
CK23K010 {C2023 05 29.76758 22 54 27.139-63 33 01.98 18.0 GVEL019Q62
CK23K010 {C2023 05 29.77530 22 54 26.172-63 33 20.92 17.7 GVEL019Q62
CK23K010 1C2023 05 29.81529 22 54 21.64 -63 34 56.1 VEL019Q62
CK23K010 1C2023 05 29.81733 22 54 21.44 -63 35 01.0 VEL019Q62
CK23K010 1C2023 05 29.81936 22 54 21.17 -63 35 05.8 17.6 GVEL019Q62
CK23K010 0C2023 05 30.29408022 53 26.858-63 54 04.56 18.6 GVEL019W85
CK23K010 0C2023 05 30.29490222 53 26.768-63 54 06.58 18.9 GVEL019W85
CK23K010 0C2023 05 30.29572822 53 26.657-63 54 08.64 18.8 GVEL019W85
CK23K010 0C2023 05 30.29653222 53 26.577-63 54 10.54 19.3 GVEL019W85
CK23K010 0C2023 05 30.29733922 53 26.485-63 54 12.51 19.5 GVEL019W85
CK23K010 0C2023 05 30.29813222 53 26.371-63 54 14.46 18.8 GVEL019W85
CK23K010 0C2023 05 30.34679322 53 20.505-63 56 12.94 18.9 GVEL019W87
CK23K010 0C2023 05 30.34761122 53 20.399-63 56 14.91 19.1 GVEL019W87
CK23K010 0C2023 05 30.34843422 53 20.310-63 56 16.90 19.1 GVEL019W87
CK23K010 0C2023 05 30.34923522 53 20.212-63 56 18.96 19.0 GVEL019W87
CK23K010 0C2023 05 30.35003322 53 20.107-63 56 20.77 19.1 GVEL019W87
CK23K010 0C2023 05 30.35082322 53 20.030-63 56 22.73 18.9 GVEL019W87
CK23K010 (C2023 05 30.58458822 52 51.986-64 05 46.64 18.2 GVEL019E10
CK23K010 (C2023 05 30.58597222 52 51.771-64 05 49.77 18.1 GVEL019E10
CK23K010 (C2023 05 30.65940322 52 42.840-64 08 50.32 18.4 GVEL019E10
CK23K010 (C2023 05 30.66080522 52 42.670-64 08 53.85 18.4 GVEL019E10
CK23K010 0C2023 05 30.67077522 52 41.431-64 09 18.35 18.1 GVEL019Q63
CK23K010 0C2023 05 30.67158822 52 41.301-64 09 20.60 19.9 GVEL019Q63
CK23K010 0C2023 05 30.67240122 52 41.264-64 09 22.26 18.5 GVEL019Q63
CK23K010 0C2023 05 30.67319822 52 41.119-64 09 24.36 19.8 GVEL019Q63
CK23K010 0C2023 05 30.67399622 52 41.026-64 09 26.01 18.6 GVEL019Q63
CK23K010 0C2023 05 30.67484622 52 40.928-64 09 28.49 19.7 GVEL019Q63
CK23K010 {C2023 05 30.69447 22 52 38.402-64 10 16.28 17.9 GVEL019Q62
CK23K010 {C2023 05 30.69968 22 52 37.807-64 10 29.10 18.1 GVEL019Q62
CK23K010 {C2023 05 30.70487 22 52 37.118-64 10 42.17 18.1 GVEL019Q62
CK23K010 KC2023 06 01.03029 22 49 41.75 -65 05 20.4 17.4 VZEL019M49
CK23K010 KC2023 06 01.04454 22 49 39.79 -65 05 56.2 17.8 VZEL019M49
CK23K010 KC2023 06 01.05777 22 49 37.79 -65 06 29.9 17.9 VZEL019M49
CK23K010 3C2023 06 01.38072 22 48 50.83 -65 20 04.3 16.8 TVEL019X07
CK23K010 3C2023 06 01.38581 22 48 50.17 -65 20 17.1 VEL019X07
CK23K010 KC2023 06 02.38433 22 46 15.14 -66 02 47.3 18.6 GVEL019X03
CK23K010 KC2023 06 02.40747 22 46 11.19 -66 03 47.0 17.8 GVEL019X03
CK23K010 KC2023 06 02.42087 22 46 08.99 -66 04 21.7 18.7 GVEL019X03
Observer details:
E10 Siding Spring-Faulkes Telescope South. Observers T. Santana-Ros, M.
Micheli, F. Ocana, L. Conversi. Measurer M. Micheli. 2.0-m f/10
reflector + CCD.
M21 Schiaparelli Southern Observatory, Hakos. Observers A. Aletti, F.
Bellini, L. Buzzi, G. Galli. Measurer A. Aletti. 0.36-m f/8.4 reflector
+ CCD.
M22 ATLAS South Africa, Sutherland. Observers L. Denneau, R. Siverd, J.
Tonry, H. Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A.
Lawrence, J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector +
CCD.
M28 Lesedi Telescope-SAAO Observatory, Sutherland. Observers N. Erasmus, S.
Potter, C. van Gend, S. Chandra. Measurers N. Erasmus, T. Ngwane. 1.0-m
f/8 Reflector + CCD.
M49 IAS Remote Observatory, Hakos. Observers D. Husar, M. Junius. Measurer
D. Husar. 0.25-m f/4.6 reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observers N. Paul, H. Sato. 0.3-m
f/9.0 Ritchey-Chretien - Closed + CCD, 0.51-m f/6.8 astrograph + CCD.
Q63 Siding Spring-LCO A. Observers T. Santana-Ros, M. Micheli, F. Ocana, L.
Conversi. Measurer M. Micheli. 1.0-m reflector + CCD.
W57 ESA TBT La Silla Observatory. Observers F. Ocana, L. Conversi, M.
Micheli, R. Kresken. Measurers F. Ocana, M. Micheli. 0.56-m f/2.52
astrograph prime-focus corrector + 4K CCD.
W79 Cerro Tololo-LCO Aqawan B #1. Observer A. Hale. 0.4-m f/10 Schmidt-
Cassegrain + CCD.
W85 Cerro Tololo-LCO A. Observers T. Santana-Ros, M. Micheli, F. Ocana, L.
Conversi. Measurer M. Micheli. 1.0-m reflector + CCD.
W87 Cerro Tololo-LCO C. Observers T. Santana-Ros, M. Micheli, F. Ocana, L.
Conversi. Measurer M. Micheli. 1.0-m reflector + CCD.
X03 Observatoire SADR, Poroto. Observers J. L. Virlichie, P. Traverse, H.
Roy. Measurer P. Traverse. 0.35-m f/4.7 Newtonian reflector + CCD.
X07 iTelescope Deep Sky Chile, Rio Hurtado. Observer T. Prystavski. 0.51-m
f/6.8 Corrected Dall-Kirkham + CCD.
Orbital elements:
C/2023 K1 (ATLAS)
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5
T 2023 Sept. 10.00718 TT Rudenko
q 2.0273550 (2000.0) P Q
z +0.0253781 Peri. 338.65809 -0.48090755 -0.74249724
+/-0.0019679 Node 224.09818 -0.67568108 -0.02505995
e 0.9485496 Incl. 137.92816 -0.55873339 +0.66938020
From 58 observations 2023 May 27-June 2, mean residual 0".5.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 05 06 23 08 41.1 -51 54 41 2.4084 2.5005 83.3 23.6 18.9
...
2023 05 21 23 05 02.2 -58 19 49 2.0555 2.4063 97.5 24.6 18.4
...
2023 05 29 22 55 49.4 -63 02 42 1.8806 2.3590 105.2 24.5 18.1
...
2023 06 04 22 41 26.6 -67 13 14 1.7613 2.3251 110.9 24.1 17.9
2023 06 05 22 38 01.3 -67 57 54 1.7427 2.3195 111.8 24.0 17.9
2023 06 06 22 34 12.3 -68 43 16 1.7245 2.3140 112.7 23.9 17.8
...
2023 06 12 21 59 20.1 -73 24 17 1.6253 2.2819 117.7 23.2 17.6
...
2023 06 20 20 07 35.4 -78 46 08 1.5245 2.2414 122.6 22.5 17.4
...
2023 07 05 15 09 23.6 -72 14 51 1.4590 2.1735 121.8 23.4 17.2
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-L19
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