MPEC 2018-A89 : 2018 AG4
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M.P.E.C. 2018-A89 Issued 2018 Jan. 15, 18:34 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 AG4
Observations:
K18A04G* C2018 01 14.24939 07 04 02.68 +52 02 31.6 18.3 GUEA089703
K18A04G C2018 01 14.25477 07 03 58.91 +52 01 26.2 18.1 GUEA089703
K18A04G C2018 01 14.26014 07 03 54.98 +52 00 21.2 18.2 GUEA089703
K18A04G C2018 01 14.31025 07 03 18.37 +51 49 40.9 17.6 GUEA089I52
K18A04G C2018 01 14.31038 07 03 18.26 +51 49 38.9 17.9 GUEA089I52
K18A04G C2018 01 14.31050 07 03 18.18 +51 49 37.5 17.9 GUEA089I52
K18A04G C2018 01 14.31063 07 03 18.08 +51 49 35.9 17.6 GUEA089I52
K18A04G C2018 01 14.31094807 03 15.10 +51 49 14.4 18.1 GUEA089H01
K18A04G C2018 01 14.31893507 03 09.28 +51 47 26.2 18.0 GUEA089H01
K18A04G C2018 01 14.32655507 03 03.72 +51 45 41.6 17.9 GUEA089H01
K18A04G C2018 01 14.32904 07 03 04.49 +51 45 26.7 18.2 GUEA089I52
K18A04G C2018 01 14.32917 07 03 04.41 +51 45 24.9 18.1 GUEA089I52
K18A04G C2018 01 14.32929 07 03 04.30 +51 45 22.9 17.6 GUEA089I52
K18A04G C2018 01 14.32942 07 03 04.22 +51 45 21.6 18.0 GUEA089I52
K18A04G C2018 01 14.33533607 02 57.34 +51 43 39.6 17.9 GUEA089H01
K18A04G KC2018 01 14.78386 07 00 07.57 +49 44 00.6 17.8 RqEA089A17
K18A04G KC2018 01 14.78718 07 00 05.30 +49 43 06.3 17.7 RqEA089A17
K18A04G KC2018 01 14.79173 07 00 02.23 +49 41 51.5 18.0 RqEA089A17
K18A04G KC2018 01 14.79659 06 59 53.26 +49 41 54.2 18.1 VtEA089L04
K18A04G KC2018 01 14.79864 06 59 57.47 +49 39 57.2 17.9 RqEA089A17
K18A04G KC2018 01 14.79998 06 59 50.68 +49 40 57.3 18.0 VtEA089L04
K18A04G KC2018 01 14.80505 06 59 46.85 +49 39 31.9 17.9 VtEA089L04
K18A04G C2018 01 14.84527006 59 47.878+49 27 43.78 17.9 GUEA089J04
K18A04G C2018 01 14.84550306 59 47.708+49 27 39.99 17.8 GUEA089J04
K18A04G C2018 01 14.84573506 59 47.546+49 27 36.26 17.8 GUEA089J04
K18A04G KC2018 01 14.93771 06 58 06.36 +48 57 49.0 17.9 RUEA089K87
K18A04G KC2018 01 14.94093 06 58 03.54 +48 56 45.0 18.4 RUEA089K87
K18A04G KC2018 01 14.94458 06 58 00.44 +48 55 31.4 18.0 RUEA089K87
K18A04G KC2018 01 14.94823 06 57 57.26 +48 54 17.4 18.0 RUEA089K87
K18A04G KC2018 01 14.95187 06 57 54.08 +48 53 03.8 18.0 RUEA089K87
K18A04G KC2018 01 14.95549 06 57 51.01 +48 51 49.1 17.7 RUEA089K87
K18A04G KC2018 01 14.95912 06 57 47.79 +48 50 34.6 18.4 RUEA089K87
K18A04G KC2018 01 14.97011 06 57 38.23 +48 46 47.0 17.8 RUEA089K87
K18A04G KC2018 01 14.97346 06 57 35.33 +48 45 36.4 17.7 RUEA089K87
K18A04G KC2018 01 14.97699 06 57 32.23 +48 44 22.2 18.1 RUEA089K87
K18A04G KC2018 01 14.98064 06 57 29.04 +48 43 05.1 17.8 RUEA089K87
K18A04G KC2018 01 14.98429 06 57 25.89 +48 41 47.5 17.6 RUEA089K87
K18A04G KC2018 01 14.98794 06 57 22.69 +48 40 29.7 17.8 RUEA089K87
K18A04G KC2018 01 14.99159 06 57 19.46 +48 39 11.6 18.2 RUEA089K87
K18A04G KC2018 01 14.99530 06 57 16.20 +48 37 51.3 17.9 RUEA089K87
K18A04G KC2018 01 15.00291 06 57 02.17 +48 35 02.1 17.5 RoEA089K88
K18A04G KC2018 01 15.00401 06 57 01.24 +48 34 38.1 17.7 RoEA089K88
K18A04G KC2018 01 15.00511 06 57 00.30 +48 34 13.7 17.4 RoEA089K88
K18A04G KC2018 01 15.00620 06 56 59.36 +48 33 48.7 17.5 RoEA089K88
K18A04G KC2018 01 15.04377 06 57 45.06 +48 20 35.6 18.1 VUEA089W34
K18A04G KC2018 01 15.05603 06 57 35.07 +48 16 33.7 17.8 VUEA089W34
K18A04G KC2018 01 15.07939 06 57 14.99 +48 08 41.6 18.2 VUEA089W34
K18A04G KC2018 01 15.08790 06 57 07.39 +48 05 44.8 17.7 VUEA089W34
K18A04G #C2018 01 15.09985 06 57 12.94 +47 59 50.1 17.9 VqEA089H06
K18A04G #C2018 01 15.10271 06 57 10.60 +47 58 51.2 17.7 VqEA089H06
K18A04G C2018 01 15.17509 06 56 09.61 +47 32 33.7 16.4 GUEA089I52
K18A04G C2018 01 15.17521 06 56 09.49 +47 32 31.2 15.8 GUEA089I52
K18A04G C2018 01 15.17534 06 56 09.37 +47 32 28.1 16.7 GUEA089I52
K18A04G C2018 01 15.17546 06 56 09.21 +47 32 25.3 16.4 GUEA089I52
K18A04G KC2018 01 15.21905 06 55 19.22 +47 16 09.7 oEA089711
K18A04G KC2018 01 15.21989 06 55 18.33 +47 15 48.9 oEA089711
K18A04G KC2018 01 15.22073 06 55 17.45 +47 15 28.7 oEA089711
K18A04G KC2018 01 15.22162 06 55 16.47 +47 15 06.9 oEA089711
K18A04G KC2018 01 15.22250 06 55 15.58 +47 14 45.4 oEA089711
K18A04G KC2018 01 15.22332 06 55 14.67 +47 14 25.6 oEA089711
K18A04G KC2018 01 15.22414 06 55 13.82 +47 14 05.5 oEA089711
K18A04G KC2018 01 15.22498 06 55 12.91 +47 13 45.0 oEA089711
K18A04G KC2018 01 15.22586 06 55 11.98 +47 13 23.3 oEA089711
K18A04G C2018 01 15.24746 06 54 55.93 +47 02 12.0 17.8 rEA089718
K18A04G C2018 01 15.24965 06 54 53.60 +47 01 15.5 17.5 rEA089718
K18A04G C2018 01 15.25131 06 54 51.88 +47 00 35.1 17.7 rEA089718
K18A04G C2018 01 15.25297 06 54 50.27 +46 59 52.2 17.4 rEA089718
K18A04G C2018 01 15.25464 06 54 48.48 +46 59 09.8 17.9 rEA089718
Observer details:
703 Catalina Sky Survey. Observer J. A. Johnson. 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.
0.68-m Schmidt + 10K CCD.
711 McDonald Observatory. Observer J. G. Ries. 2.1-m reflector + CCD + focal
reducer.
718 Tooele. Observer P. Wiggins. 0.35-m f/5.5 Schmidt-Cassegrain + CCD.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6 Schmidt-Cassegrain + 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.
H06 iTelescope Observatory, Mayhill. Observer M. Suzuki. 0.50-m f/6.8
reflector + CCD + f/4.5 focal reducer.
I52 Steward Observatory, Mt. Lemmon Station. Observer J. A. Johnson.
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.
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers
M. Micheli, D. Koschny, M. Busch, E. Schwab, A. Knoefel. 1.0-m f/4.4
reflector + CCD.
K87 Dettelbach Vineyard Observatory. Observer B. Haeusler. 0.30-m
Schmidt-Cassegrain + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L04 ROASTERR-1 Observatory, Cluj-Napoca. Observer L. Hudin. 0.3-m f/5
reflector + CCD.
W34 Squirrel Valley Observatory, Columbus. Observer R. L. Flynn. 0.20-m f/10
Schmidt-Cassegrain + CCD + f/7.0 focal reducer.
Orbital elements:
2018 AG4 Earth MOID = 0.0044 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 234.08614 (2000.0) P Q
n 0.70032428 Peri. 235.83349 -0.97723186 -0.13091454
a 1.2558466 Node 296.13536 +0.19522991 -0.86297565
e 0.2901499 Incl. 10.71868 -0.08308528 -0.48799017
P 1.41 H 26.0 G 0.15 U 6
Residuals in seconds of arc
180114 703 0.3- 0.2+ 180114 J04 0.0 0.3+ 180115 W34 0.1+ 0.7+
180114 703 0.4+ 0.3- 180114 J04 0.1+ 0.3+ 180115 W34 0.0 0.1+
180114 703 0.2- 0.1+ 180114 K87 0.3+ 0.4- 180115 H06 0.2+ 0.2-
180114 I52 0.1+ 0.1+ 180114 K87 0.1- 0.2+ 180115 H06 0.3+ 0.5-
180114 I52 0.1- 0.2- 180114 K87 0.4+ 0.0 180115 I52 0.1+ 0.1-
180114 I52 0.0 0.0 180114 K87 0.1+ 0.1- 180115 I52 0.1+ 0.1+
180114 I52 0.0 0.2+ 180114 K87 0.1- 0.3+ 180115 I52 0.1+ 0.1-
180114 H01 0.0 0.0 180114 K87 0.6+ 0.4- 180115 I52 0.3- 0.2-
180114 H01 0.0 0.0 180114 K87 0.1- 0.3- 180115 711 0.2- 0.3+
180114 H01 0.0 0.0 180114 K87 0.1+ 0.1+ 180115 711 0.2- 0.1-
180114 I52 0.1- 0.0 180114 K87 0.3+ 0.3- 180115 711 0.1- 0.2+
180114 I52 0.1+ 0.0 180114 K87 0.1+ 0.2- 180115 711 0.4- 0.1+
180114 I52 0.1- 0.3- 180114 K87 0.1+ 0.1- 180115 711 0.0 0.1+
180114 I52 0.0 0.2+ 180114 K87 0.5+ 0.1- 180115 711 0.4- 0.3+
180114 H01 0.1- 0.0 180114 K87 0.4+ 0.1+ 180115 711 0.1- 0.3+
180114 A17 0.1+ 0.1+ 180114 K87 0.0 0.4+ 180115 711 0.3- 0.4+
180114 A17 0.3- 0.1+ 180114 K87 0.2- 0.1+ 180115 711 0.2- 0.3+
180114 A17 0.1- 0.1- 180115 K88 0.3- 0.1+ 180115 718 0.3+ 0.3+
180114 L04 0.1- 0.4- 180115 K88 0.1- 0.6+ 180115 718 0.3- 1.0-
180114 A17 0.1- 0.2- 180115 K88 0.0 0.6+ 180115 718 0.3- 0.5+
180114 L04 0.3- 0.2- 180115 K88 0.0 0.1- 180115 718 0.8+ 0.4-
180114 L04 0.1+ 0.1+ 180115 W34 0.7- 1.0- 180115 718 0.2+ 0.4-
180114 J04 0.1+ 0.2+ 180115 W34 0.1+ 0.4-
Ephemeris:
2018 AG4 a,e,i = 1.26, 0.29, 11 q = 0.8915
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 12 16 07 22 52.3 +58 27 32 0.1794 1.1273 139.8 34.3 24.0
...
2017 12 31 07 27 04.4 +60 04 36 0.09357 1.0588 142.1 34.8 22.4
...
2018 01 08 07 22 30.8 +59 09 54 0.05030 1.0240 143.1 35.2 21.0
...
2018 01 14 07 05 33.4 +52 48 20 0.01860 0.9994 147.8 31.6 18.7
2018 01 15 06 57 27.1 +48 36 57 0.01344 0.9954 150.9 28.7 17.9
2018 01 16 06 43 36.2 +39 14 25 0.0084600.9915 156.9 22.9 16.7
...
2018 01 22 20 11 56.0 -70 03 14 0.02433 0.9688 50.3 128.6 23.4
...
2018 01 30 19 44 39.2 -64 41 50 0.06650 0.9420 48.1 128.8 25.6
...
2018 02 14 19 48 07.5 -60 36 24 0.1470 0.9051 52.3 120.3 26.5
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-A89
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