[Iaude] MPEC H53: 2017 HW2 [a=1.79,e=0.46,i=5.3,H=26.5]
mpec at si.edu
mpec at si.edu
Sun Apr 23 10:31:20 EDT 2017
M.P.E.C. 2017-H53 Issued 2017 Apr. 23, 14:27 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 http://www.minorplanetcenter.net/ ISSN 1523-6714
2017 HW2
Observations:
K17H02W* C2017 04 22.33287 15 22 12.61 +23 55 41.2 21.4 VqEH053G96
K17H02W C2017 04 22.33791 15 22 18.80 +23 55 41.0 20.9 VqEH053G96
K17H02W C2017 04 22.34383 15 22 26.20 +23 55 40.3 20.8 VqEH053G96
K17H02W C2017 04 22.34810 15 22 31.55 +23 55 39.9 20.6 VqEH053G96
K17H02W C2017 04 22.37095315 22 59.10 +23 55 28.8 21.2 GUEH053H01
K17H02W C2017 04 22.37703715 23 06.72 +23 55 27.2 20.7 GUEH053H01
K17H02W C2017 04 22.38662015 23 18.75 +23 55 24.4 19.8 GUEH053H01
K17H02W C2017 04 22.39204415 23 25.58 +23 55 22.5 20.3 GUEH053H01
K17H02W KC2017 04 22.97937 15 37 37.40 +23 49 05.8 UEH053J95
K17H02W KC2017 04 22.99130 15 37 54.96 +23 48 57.4 UEH053J95
K17H02W KC2017 04 23.00354 15 38 12.91 +23 48 48.7 21.0 GUEH053J95
K17H02W C2017 04 23.35967 15 47 38.68 +23 43 51.4 20.5 RoEH053926
K17H02W C2017 04 23.36437 15 47 46.03 +23 43 45.8 20.5 RoEH053926
K17H02W C2017 04 23.36903 15 47 53.31 +23 43 39.5 20.5 RoEH053926
K17H02W C2017 04 23.42304 15 49 18.24 +23 42 18.8 21.7 VqEH053I52
K17H02W C2017 04 23.42526 15 49 21.64 +23 42 14.7 20.7 VqEH053I52
K17H02W C2017 04 23.42637 15 49 23.35 +23 42 13.1 20.8 VqEH053I52
Observer details:
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer R. G. Matheny. Measurers E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2017 HW2 Earth MOID = 0.0090 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 320.79045 (2000.0) P Q
n 0.40998917 Peri. 201.23274 -0.36902196 +0.92692549
a 1.7945454 Node 47.18257 -0.83880323 -0.30061087
e 0.4587023 Incl. 5.32372 -0.40028981 -0.22459351
P 2.40 H 26.5 G 0.15 U 7
Residuals in seconds of arc
170422 G96 0.3+ 0.1- 170422 H01 0.1- 0.1- 170423 926 0.2+ 0.3-
170422 G96 0.6- 0.2+ 170422 H01 0.0 0.2- 170423 926 0.3+ 0.6-
170422 G96 0.0 0.1+ 170422 J95 0.1- 0.6+ 170423 I52 1.2+ 0.8+
170422 G96 0.6+ 0.2+ 170422 J95 0.4+ 0.1- 170423 I52 0.4- 0.2+
170422 H01 0.1- 0.2- 170423 J95 0.3- 0.5- 170423 I52 1.1- 0.4+
170422 H01 0.1- 0.1- 170423 926 0.1- 0.7-
Ephemeris:
2017 HW2 a,e,i = 1.79, 0.46, 5 q = 0.9714
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 03 24 13 05 08.5 +17 11 16 0.1993 1.1833 157.4 18.9 24.3
...
2017 04 08 13 28 07.2 +20 27 25 0.1098 1.0993 151.9 25.4 23.1
...
2017 04 16 14 02 12.9 +22 32 04 0.06742 1.0606 146.8 31.2 22.1
...
2017 04 22 15 15 02.1 +23 56 31 0.03906 1.0351 139.4 39.2 21.1
2017 04 23 15 38 01.7 +23 50 54 0.03499 1.0312 136.8 41.8 20.9
2017 04 24 16 06 32.9 +23 24 45 0.03130 1.0275 133.3 45.4 20.8
...
2017 04 30 20 29 44.3 +04 30 44 0.02599 1.0070 88.6 89.9 21.8
...
2017 05 08 23 02 48.9 -11 50 06 0.05764 0.9864 65.2 111.7 24.5
...
2017 05 23 00 03 57.7 -15 42 56 0.1317 0.9711 68.1 104.7 25.9
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-H53
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