MPEC 2013-J52 : COMET P/2013 EW90 (TENAGRA)
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M.P.E.C. 2013-J52 Issued 2013 May 13, 04:23 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 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 P/2013 EW90 (TENAGRA)
Observations:
PK13E90W C2013 02 16.40285 11 54 57.08 +07 25 40.8 20.4 ToEJ052691
PK13E90W C2013 02 16.42061 11 54 56.68 +07 25 52.5 20.5 ToEJ052691
PK13E90W C2013 02 16.43826 11 54 56.30 +07 26 05.3 20.5 ToEJ052691
PK13E90W C2013 03 03.18634 11 48 25.01 +10 24 49.6 19.0 ToEJ052926
PK13E90W C2013 03 03.20194 11 48 24.52 +10 25 01.0 19.0 ToEJ052926
PK13E90W C2013 03 03.20637 11 48 24.33 +10 25 04.4 oEJ052691
PK13E90W C2013 03 03.21578 11 48 24.07 +10 25 11.3 19.1 ToEJ052926
PK13E90W C2013 03 03.22405 11 48 23.79 +10 25 17.6 oEJ052691
PK13E90W C2013 03 03.24176 11 48 23.19 +10 25 30.0 oEJ052691
PK13E90W C2013 03 14.36891 11 42 12.81 +12 40 41.5 18.7 TuEJ052703
PK13E90W C2013 03 14.37501 11 42 12.67 +12 40 44.6 18.9 TuEJ052703
PK13E90W C2013 03 14.38122 11 42 12.45 +12 40 50.0 18.9 TuEJ052703
PK13E90W C2013 03 14.38740 11 42 12.16 +12 40 53.6 19.1 TuEJ052703
PK13E90W C2013 03 14.39354 11 42 11.91 +12 40 58.2 18.9 TuEJ052703
PK13E90W C2013 04 04.22010 11 31 05.84 +16 16 23.5 19.2 TuEJ052703
PK13E90W C2013 04 04.22510 11 31 05.59 +16 16 24.0 19.3 TuEJ052703
PK13E90W C2013 04 04.23348 11 31 05.44 +16 16 29.8 19.5 TuEJ052703
PK13E90W C2013 04 04.24101 11 31 05.23 +16 16 33.4 19.5 TuEJ052703
PK13E90W C2013 04 10.18139 11 28 38.10 +17 03 45.9 19.4 TuEJ052G96
PK13E90W C2013 04 10.18693 11 28 37.95 +17 03 47.9 19.4 TuEJ052G96
PK13E90W C2013 04 10.19214 11 28 37.84 +17 03 50.4 19.2 TuEJ052G96
PK13E90W C2013 04 10.19738 11 28 37.74 +17 03 52.6 19.3 TuEJ052G96
PK13E90W C2013 04 11.55861 11 28 08.08 +17 13 40.0 19.6 TrEJ052D29
PK13E90W C2013 04 11.55966 11 28 08.13 +17 13 40.2 19.5 TrEJ052D29
PK13E90W C2013 04 11.57759 11 28 07.64 +17 13 47.5 19.4 TrEJ052D29
PK13E90W C2013 04 11.57865 11 28 07.61 +17 13 48.6 19.4 TrEJ052D29
PK13E90W C2013 04 11.59659 11 28 07.24 +17 13 56.1 19.2 TrEJ052D29
PK13E90W C2013 04 11.59769 11 28 07.17 +17 13 56.2 19.2 TrEJ052D29
PK13E90W C2013 04 13.13927 11 27 35.78 +17 24 32.4 19.4 TNEJ052I41
PK13E90W C2013 04 13.16785 11 27 35.19 +17 24 44.2 19.5 TNEJ052I41
PK13E90W C2013 04 13.20828 11 27 34.36 +17 25 00.3 19.6 TNEJ052I41
PK13E90W C2013 04 18.14310 11 26 08.82 +17 55 30.7 19.7 TNEJ052I41
PK13E90W C2013 04 18.17226 11 26 08.34 +17 55 40.7 19.3 TNEJ052I41
PK13E90W C2013 04 18.20475 11 26 07.84 +17 55 51.6 19.6 TNEJ052I41
PK13E90W |C2013 04 30.14392 11 24 23.65 +18 48 46.3 cEJ052H06
PK13E90W |C2013 04 30.14821 11 24 23.61 +18 48 46.7 18.8 TcEJ052H06
PK13E90W |C2013 05 02.17256 11 24 20.84 +18 54 58.2 cEJ052H06
PK13E90W |C2013 05 02.17489 11 24 20.84 +18 54 58.7 cEJ052H06
PK13E90W |C2013 05 02.17722 11 24 20.81 +18 54 59.6 19.5 TcEJ052H06
PK13E90W 7C2013 05 03.42093 11 24 21.16 +18 58 23.0 19.7 TtEJ052F65
PK13E90W 7C2013 05 03.42639 11 24 21.16 +18 58 24.1 tEJ052F65
PK13E90W 7C2013 05 03.43189 11 24 21.19 +18 58 25.0 tEJ052F65
PK13E90W KC2013 05 04.90959 11 24 24.01 +19 02 04.9 tEJ052204
PK13E90W KC2013 05 04.92989 11 24 24.07 +19 02 07.5 19.3 TtEJ052204
PK13E90W KC2013 05 06.85878 11 24 31.17 +19 06 19.2 tEJ052204
PK13E90W KC2013 05 06.87351 11 24 31.29 +19 06 21.4 tEJ052204
PK13E90W KC2013 05 06.89350 11 24 31.32 +19 06 22.7 19.4 TtEJ052204
PK13E90W C2013 05 07.13056311 24 32.56 +19 06 51.9 20.6 TtEJ052711
PK13E90W C2013 05 07.13420911 24 32.58 +19 06 52.1 20.9 TtEJ052711
PK13E90W C2013 05 07.14512511 24 32.62 +19 06 53.5 20.8 TtEJ052711
PK13E90W C2013 05 07.14876311 24 32.63 +19 06 53.7 20.6 TtEJ052711
PK13E90W C2013 05 07.15604711 24 32.65 +19 06 54.7 20.4 TtEJ052711
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
691 Steward Observatory, Kitt Peak. Observers T. H. Bressi. 0.9-m
Spacewatch telescope.
703 Catalina Sky Survey. Observer R. E. Hill. Measurers A. Boattini,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
R. A. Kowalski, S. M. Larson, R. H. McNaught, F. C. Shelly. 0.68-m
Schmidt + CCD.
711 McDonald Observatory. Observers L. Buzzi, T. Vorobjov, S. Foglia,
P. Miller, T. Lister. Measurers T. Lister, L. Buzzi, S. Foglia. 1.0-m
f/8 Ritchey-Chretien + CCD.
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD. 0.36-m f/11
Schmidt-Cassegrain + CCD.
D29 Purple Mountain Observatory, XuYi Station. Observers H. B. Zhao, B. Li,
H. Lu, Y. Xia, R. Q. Hong, L. F. Hu. Measurers H. B. Zhao, H. Lu,
G. Zhaori. 1.04-m f/1.8 Schmidt + CCD.
F65 Haleakala-Faulkes Telescope North. Observers P. Miller, P. Roche,
A. Tripp, R. Miles, R. Holmes, S. Foglia, L. Buzzi. Measurers L. Buzzi,
S. Foglia, T. Vorobjov, T. Lister. 2.0-m f/10 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer A. Boattini. Measurers A. Boattini,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
R. A. Kowalski, S. M. Larson, R. H. McNaught, F. C. Shelly. 1.5-m
reflector + CCD.
H06 iTelescope Observatory, Mayhill. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
I41 Palomar Mountain--PTF. Measurer A. Waszczak. 1.2-m f/2.44 Schmidt
+ CCD.
Orbital elements:
P/2013 EW90 (Tenagra)
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5
T 2012 Oct. 11.84051 TT MPC
q 3.3003350 (2000.0) P Q
n 0.11850763 Peri. 346.03197 -0.84504417 -0.50449673
a 4.1049246 Node 160.36159 +0.52709410 -0.84165067
e 0.1960060 Incl. 31.81056 +0.08984517 +0.19263229
P 8.32
From 52 observations 2013 Feb. 16-May 7, mean residual 0".5.
P/2013 EW90 (Tenagra)
Epoch 2021 Mar. 7.0 TT = JDT 2459280.5
T 2021 Feb. 15.49183 TT MPC
q 3.3141092 (2000.0) P Q
n 0.11802887 Peri. 346.34632 -0.84716595 -0.50075633
a 4.1160175 Node 160.29313 +0.52340864 -0.84402716
e 0.1948263 Incl. 31.78755 +0.09139609 +0.19199282
P 8.35
From 52 observations 2013 Feb. 16-May 7, mean residual 0".5.
P/2013 EW90 (Tenagra)
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5
T 2012 Oct. 12.11237 TT MPC
q 3.3004412 (2000.0) P Q
n 0.11846855 Peri. 346.08036 -0.84546616 -0.50379341
a 4.1058273 Node 160.36139 +0.52638707 -0.84209939
e 0.1961568 Incl. 31.80784 +0.09002017 +0.19251187
P 8.32
From 52 observations 2013 Feb. 16-May 7, mean residual 0".5.
Ephemeris:
P/2013 EW90 (Tenagra)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2013 04 13 11 27 38.4 +17 23 37 2.5498 3.3864 140.8 10.8 19.3
...
2013 04 28 11 24 31.3 +18 41 22 2.7156 3.4005 125.5 13.9 19.5
...
2013 05 06 11 24 27.6 +19 04 33 2.8185 3.4084 117.8 15.2 19.6
...
2013 05 12 11 25 09.6 +19 14 19 2.9006 3.4145 112.3 15.9 19.6
2013 05 13 11 25 20.3 +19 15 20 2.9147 3.4155 111.4 16.0 19.7
2013 05 14 11 25 32.0 +19 16 12 2.9288 3.4166 110.5 16.1 19.7
...
2013 05 20 11 27 03.9 +19 18 06 3.0149 3.4229 105.2 16.6 19.7
...
2013 05 28 11 30 01.0 +19 12 35 3.1327 3.4314 98.5 17.0 19.8
...
2013 06 12 11 38 04.4 +18 41 10 3.3574 3.4482 86.5 17.1 20.0
Gareth V. Williams (C) Copyright 2013 MPC M.P.E.C. 2013-J52
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