[Iaude] MPEC E54: 2018 ET1 [a=1.28,e=0.24,i=7.8,H=26.4]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Mar 10 16:19:17 EST 2018
M.P.E.C. 2018-E54 Issued 2018 Mar. 10, 21:16 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
2018 ET1
Observations:
K18E01T* C2018 03 07.23596 09 26 35.02 +50 41 49.1 21.1 GUEE054G96
K18E01T C2018 03 07.24118 09 26 32.20 +50 41 33.1 20.9 GUEE054G96
K18E01T C2018 03 07.24641 09 26 29.43 +50 41 16.9 20.7 GUEE054G96
K18E01T C2018 03 07.25162 09 26 26.45 +50 41 00.2 20.6 GUEE054G96
K18E01T C2018 03 07.33610909 25 39.86 +50 36 03.5 20.6 GUEE054H01
K18E01T C2018 03 07.34248509 25 36.53 +50 35 39.9 21.3 GUEE054H01
K18E01T C2018 03 07.34950809 25 32.85 +50 35 13.6 21.2 GUEE054H01
K18E01T C2018 03 07.35775309 25 28.60 +50 34 42.5 20.9 GUEE054H01
K18E01T C2018 03 07.38664 09 25 14.23 +50 33 01.9 21.0 GUEE054I52
K18E01T C2018 03 07.38830 09 25 13.44 +50 32 55.5 20.8 GUEE054I52
K18E01T C2018 03 07.38996 09 25 12.61 +50 32 49.4 21.8 GUEE054I52
K18E01T C2018 03 07.39162 09 25 11.67 +50 32 42.7 20.9 GUEE054I52
K18E01T C2018 03 08.31394 09 18 17.44 +49 39 03.9 20.7 GUEE054G96
K18E01T C2018 03 08.31469 09 18 17.02 +49 39 01.4 21.6 GUEE054G96
K18E01T C2018 03 08.31544 09 18 16.57 +49 38 57.0 21.2 GUEE054G96
K18E01T C2018 03 08.31620 09 18 16.09 +49 38 54.3 21.2 GUEE054G96
K18E01T C2018 03 10.25170 09 00 36.85 +46 57 58.3 19.8 GUEE054I52
K18E01T C2018 03 10.25229 09 00 36.47 +46 57 54.9 20.1 GUEE054I52
K18E01T C2018 03 10.25288 09 00 35.98 +46 57 50.9 20.0 GUEE054I52
K18E01T C2018 03 10.25347 09 00 35.49 +46 57 46.5 20.7 GUEE054I52
Observer details:
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers B. M. Africano,
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. 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. Observers B. M. Africano,
D. C. Fuls, J. A. Johnson. Measurers B. M. Africano, 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. L. Seaman, F. C. Shelly. 1.0-m reflector
+ CCD.
Orbital elements:
2018 ET1 Earth MOID = 0.0050 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 347.43242 (2000.0) P Q
n 0.67775228 Peri. 208.78385 -0.92043618 +0.39065115
a 1.2835774 Node 354.16030 -0.32776352 -0.79046790
e 0.2388533 Incl. 7.76366 -0.21299838 -0.47175436
P 1.45 H 26.4 G 0.15 U 6
Residuals in seconds of arc
180307 G96 0.1- 0.4+ 180307 H01 0.8+ 0.3+ 180308 G96 0.5+ 0.4-
180307 G96 0.2+ 0.3+ 180307 I52 0.4- 0.7- 180308 G96 0.2+ 0.2+
180307 G96 1.1+ 0.2+ 180307 I52 0.2+ 0.6- 180310 I52 0.0 0.1-
180307 G96 0.1- 0.3- 180307 I52 0.3+ 0.2- 180310 I52 0.8+ 0.3+
180307 H01 0.6+ 0.3+ 180307 I52 0.7- 0.3- 180310 I52 0.5+ 0.2+
180307 H01 0.7+ 0.3+ 180308 G96 0.2+ 0.1- 180310 I52 0.2+ 0.3-
180307 H01 0.6+ 0.2+ 180308 G96 0.5+ 0.6+
Ephemeris:
2018 ET1 a,e,i = 1.28, 0.24, 8 q = 0.9770
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 02 08 10 33 46.1 +52 03 13 0.1375 1.0962 140.7 34.8 23.7
...
2018 02 23 10 15 39.9 +54 08 15 0.08194 1.0497 135.8 41.0 22.7
...
2018 03 03 09 50 16.0 +53 02 44 0.05417 1.0284 132.2 45.6 21.9
...
2018 03 09 09 12 41.7 +48 49 34 0.03401 1.0144 128.7 49.8 20.9
2018 03 10 09 03 17.2 +47 22 29 0.03075 1.0122 127.9 50.7 20.7
2018 03 11 08 52 28.5 +45 30 04 0.02755 1.0101 127.0 51.8 20.5
...
2018 03 17 06 57 19.7 +08 07 34 0.01203 0.9987 108.0 71.4 19.3
...
2018 03 25 02 24 37.6 -59 27 03 0.02576 0.9870 66.1 112.5 22.7
...
2018 04 09 00 01 37.9 -60 19 59 0.07499 0.9771 69.0 106.9 24.7
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-E54
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