[Iaude] MPEC F54: COMET C/2019 E3 (ATLAS)
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Thu Mar 21 15:21:17 EDT 2019
M.P.E.C. 2019-F54 Issued 2019 Mar. 21, 19:12 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 C/2019 E3 (ATLAS)
Initially reported as a new NEO candidate, D. Young (T08) subsequently
reported that the object appeared cometary in the discovery images, with a
15" FWHM (compared to 5" for nearby field stars) in four stacked 30s exposures.
P. Kilmartin (474, Mar. 6) described a circular ~10" moderately-condensed coma.
T. Lister (W86, Mar. 6) reported a ~10" coma. M. Micheli (J04, Mar. 8)
described a coma with a 5" FWHM in 3" seeing. H. Sato (Q62, Mar. 7) reported
a strongly-condensed 15" coma and no tail in ten stacked 60s exposures.
Observations:
CK19E030* C2019 03 05.42678010 14 03.12 -37 05 03.2 18.45oVEF054T08
CK19E030 C2019 03 05.43322810 14 03.07 -37 05 02.4 17.87oVEF054T08
CK19E030 C2019 03 05.44151510 14 02.74 -37 05 01.0 18.86oVEF054T08
CK19E030 C2019 03 05.45626010 14 02.39 -37 05 00.8 18.92oVEF054T08
CK19E030 C2019 03 05.94833610 13 50.61 -37 04 51.3 20.1 GVEF054K92
CK19E030 C2019 03 05.95003010 13 50.56 -37 04 51.2 20.1 GVEF054K92
CK19E030 C2019 03 05.95173110 13 50.51 -37 04 51.1 20.0 GVEF054K92
CK19E030 C2019 03 05.95342410 13 50.47 -37 04 51.0 20.1 GVEF054K92
CK19E030 |C2019 03 06.03759 10 13 48.52 -37 04 48.7 19.7 VuEF054807
CK19E030 |C2019 03 06.04316 10 13 48.36 -37 04 48.7 19.6 VuEF054807
CK19E030 |C2019 03 06.04886 10 13 48.23 -37 04 48.5 20.1 VuEF054807
CK19E030 C2019 03 06.23613410 13 43.71 -37 04 44.8 20.2 GVEF054W86
CK19E030 C2019 03 06.23886610 13 43.64 -37 04 45.1 20.3 GVEF054W86
CK19E030 C2019 03 06.24160410 13 43.55 -37 04 44.7 20.2 GVEF054W86
CK19E030 C2019 03 06.24433810 13 43.49 -37 04 44.9 20.2 GVEF054W86
CK19E030 KC2019 03 06.49969 10 13 37.39 -37 04 38.3 19.4 GVEF054474
CK19E030 KC2019 03 06.50326 10 13 37.29 -37 04 38.3 19.6 GVEF054474
CK19E030 KC2019 03 06.50682 10 13 37.22 -37 04 38.5 19.3 GVEF054474
CK19E030 KC2019 03 06.51038 10 13 37.17 -37 04 37.5 19.9 GVEF054474
CK19E030 KC2019 03 07.46348 10 13 14.37 -37 04 15.1 18.6 RUEF054Q62
CK19E030 KC2019 03 07.46834 10 13 14.29 -37 04 14.2 18.5 RUEF054Q62
CK19E030 KC2019 03 07.46928 10 13 14.27 -37 04 14.4 18.3 RUEF054Q62
CK19E030 KC2019 03 07.47374 10 13 14.17 -37 04 14.2 18.5 RUEF054Q62
CK19E030 1C2019 03 07.57721 10 13 11.68 -37 04 11.5 VEF054Q62
CK19E030 1C2019 03 07.57991 10 13 11.57 -37 04 11.1 VEF054Q62
CK19E030 1C2019 03 07.58260 10 13 11.49 -37 04 10.8 18.3 GVEF054Q62
CK19E030 C2019 03 08.97417610 12 38.478-37 03 30.81 19.7 GVEF054J04
CK19E030 C2019 03 08.97528010 12 38.491-37 03 30.61 19.8 GVEF054J04
CK19E030 C2019 03 08.97638610 12 38.435-37 03 30.67 19.2 GVEF054J04
CK19E030 |C2019 03 13.16077 10 11 00.20 -37 00 47.3 19.4 VuEF054807
CK19E030 |C2019 03 13.16992 10 11 00.02 -37 00 46.7 19.7 VuEF054807
CK19E030 |C2019 03 13.17876 10 10 59.78 -37 00 46.3 19.6 VuEF054807
CK19E030 KC2019 03 13.25505 10 10 57.96 -37 00 42.7 19.1 VqEF054I47
CK19E030 KC2019 03 13.27598 10 10 57.51 -37 00 41.6 19.0 VqEF054I47
CK19E030 C2019 03 13.29916410 10 56.93 -37 00 40.5 18.7 RtEF054W87
CK19E030 C2019 03 13.30155810 10 56.88 -37 00 40.4 18.5 RtEF054W87
CK19E030 C2019 03 13.30394710 10 56.82 -37 00 40.3 18.7 RtEF054W87
CK19E030 C2019 03 13.30633210 10 56.77 -37 00 40.2 18.9 RtEF054W87
CK19E030 |C2019 03 16.05314 10 09 53.68 -36 58 20.9 19.8 VuEF054807
CK19E030 |C2019 03 16.05869 10 09 53.52 -36 58 20.6 19.1 VuEF054807
CK19E030 |C2019 03 21.06128 10 08 01.64 -36 53 08.4 19.5 VuEF054807
CK19E030 |C2019 03 21.07043 10 08 01.43 -36 53 08.0 19.5 VuEF054807
CK19E030 |C2019 03 21.07929 10 08 01.22 -36 53 07.6 19.8 VuEF054807
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
I47 Pierre Auger Observatory, Malargue. Observer M. Masek. 0.3-m f/6.8
reflector + CCD.
J04 ESA Optical Ground Station, Tenerife. Observer D. Abreu. Measurers
M. Micheli, D. Koschny, A. Knoefel, M. Busch, E. Schwab. 1.0-m f/4.4
reflector + CCD.
K92 Sutherland-LCO B. Observers T. Lister, J. Chatelain, E. Gomez,
S. Greenstreet. Measurer T. Lister. 1.0-m f/8.0 Ritchey-Chretien + CCD.
Q62 iTelescope Observatory, Siding Spring. Observers C. Jacques, E. Pimentel,
J. Barros, H. Sato. Measurers C. Jacques, H. Sato. 0.43-m f/6.8
reflector + CCD, 0.51-m f/6.8 astrograph + CCD + f/4.5 focal reducer.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, A. Heinze,
H. Weiland, H. Flewelling. Measurers L. Denneau, J. Tonry, A. Heinze,
H. Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, D. Young,
N. Erasmus. 0.5-m reflector + CCD.
W86 Cerro Tololo-LCO B. Observers T. Lister, J. Chatelain, E. Gomez,
S. Greenstreet. Measurer T. Lister. 1.-m f/8.0 Ritchey-Chretien + CCD.
W87 Cerro Tololo-LCO C. Observers J. D. Armstrong, J. O. Teagarden. 1.0-m
f/8 Ritchey-Chretien + CCD.
Orbital elements:
C/2019 E3 (ATLAS)
Epoch 2023 Dec. 2.0 TT = JDT 2460280.5
T 2023 Nov. 16.82444 TT MPCW
q 10.3513515 (2000.0) P Q
z +0.0015810 Peri. 280.43575 +0.15392547 +0.96265621
+/-0.0023053 Node 347.06216 +0.26162534 -0.25705971
e 0.9836343 Incl. 84.10651 -0.95281642 +0.08493134
>From 43 observations 2019 Mar. 5-21, mean residual 0".3.
C/2019 E3 (ATLAS)
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5
T 2023 Nov. 12.72417 TT MPCW
q 10.3556045 (2000.0) P Q
z +0.0009530 Peri. 280.30766 +0.15153859 +0.96291065
+/-0.0023053 Node 347.02949 +0.26147260 -0.25686009
e 0.9901310 Incl. 84.06598 -0.95324086 +0.08261946
>From 43 observations 2019 Mar. 5-21, mean residual 0".3.
Ephemeris:
C/2019 E3 (ATLAS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2019 02 19 10 19 52.0 -37 03 19 13.0086 13.6813 131.3 3.1 19.4
...
2019 03 06 10 13 49.4 -37 04 50 12.9092 13.6330 135.4 2.9 19.4
...
2019 03 14 10 10 40.8 -37 00 07 12.8779 13.6073 135.7 2.9 19.4
...
2019 03 20 10 08 25.0 -36 54 21 12.8644 13.5881 135.1 3.0 19.4
2019 03 21 10 08 03.0 -36 53 13 12.8629 13.5849 135.0 3.0 19.4
2019 03 22 10 07 41.1 -36 52 02 12.8617 13.5817 134.8 3.0 19.4
...
2019 03 28 10 05 34.6 -36 44 02 12.8592 13.5625 133.3 3.1 19.4
...
2019 04 05 10 02 59.3 -36 31 10 12.8683 13.5370 130.3 3.2 19.4
...
2019 04 20 09 58 59.2 -36 02 19 12.9203 13.4893 122.7 3.6 19.4
Gareth V. Williams (C) Copyright 2019 MPC M.P.E.C. 2019-F54
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