MPEC 2018-R186: 2018 RD7
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M.P.E.C. 2018-R186 Issued 2018 Sept. 15, 22:58 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 RD7
Observations:
K18R07D* C2018 09 13.18537 22 07 23.89 -19 20 40.1 19.0 GUER186703
K18R07D C2018 09 13.19077 22 07 31.33 -19 20 11.0 19.1 GUER186703
K18R07D C2018 09 13.20155 22 07 46.19 -19 19 14.0 18.9 GUER186703
K18R07D C2018 09 13.31330 22 10 18.96 -19 08 58.3 19.0 GUER186I52
K18R07D C2018 09 13.31355 22 10 19.30 -19 08 56.7 18.4 GUER186I52
K18R07D C2018 09 13.31379 22 10 19.60 -19 08 55.2 18.8 GUER186I52
K18R07D C2018 09 13.31403 22 10 19.95 -19 08 54.0 18.7 GUER186I52
K18R07D KC2018 09 13.44583 22 13 39.72 -18 52 52.3 qER186E23
K18R07D KC2018 09 13.45972 22 13 58.48 -18 51 39.3 19.1 VqER186E23
K18R07D KC2018 09 13.47361 22 14 17.17 -18 50 23.6 19.0 VqER186E23
K18R07D KC2018 09 13.92800 22 24 42.86 -18 12 27.9 19.1 GVER186J95
K18R07D KC2018 09 13.93159 22 24 47.49 -18 12 07.8 19.2 GVER186J95
K18R07D KC2018 09 13.93514 22 24 52.10 -18 11 48.8 19.3 GVER186J95
K18R07D KC2018 09 13.97644 22 25 42.80 -18 07 42.4 18.9 VER186104
K18R07D KC2018 09 13.97959 22 25 46.81 -18 07 24.4 18.7 VER186104
K18R07D KC2018 09 13.98274 22 25 50.85 -18 07 06.1 19.0 VER186104
K18R07D C2018 09 14.15315 22 29 49.19 -17 50 31.8 18.7 GVER186I52
K18R07D C2018 09 14.15333 22 29 49.46 -17 50 30.9 18.7 GVER186I52
K18R07D C2018 09 14.15352 22 29 49.70 -17 50 30.0 18.9 GVER186I52
K18R07D C2018 09 14.15370 22 29 49.93 -17 50 29.3 19.3 GVER186I52
K18R07D KC2018 09 14.17289 22 30 10.66 -17 49 05.3 18.5 RqER186H36
K18R07D KC2018 09 14.17968 22 30 19.11 -17 48 27.9 18.4 RqER186H36
K18R07D KC2018 09 14.18646 22 30 27.50 -17 47 49.8 18.5 RqER186H36
K18R07D KC2018 09 14.19324 22 30 35.90 -17 47 12.5 18.7 RqER186H36
K18R07D KC2018 09 14.23049422 31 20.31 -17 43 42.7 19.3 VuER186H21
K18R07D KC2018 09 14.23312922 31 23.57 -17 43 27.9 19.4 VuER186H21
K18R07D KC2018 09 14.23733022 31 28.74 -17 43 03.9 19.4 VuER186H21
K18R07D KC2018 09 14.91907 22 45 44.49 -16 39 22.3 18.4 RoER186K88
K18R07D KC2018 09 14.92267 22 45 48.60 -16 39 02.4 18.3 RoER186K88
K18R07D KC2018 09 15.07913 22 49 03.88 -16 23 50.3 18.6 RuER186850
K18R07D KC2018 09 15.08621 22 49 11.88 -16 23 12.5 18.1 RuER186850
K18R07D KC2018 09 15.09334 22 49 19.86 -16 22 34.0 18.5 RuER186850
K18R07D KC2018 09 15.10048 22 49 27.80 -16 21 54.9 19.8 RuER186850
K18R07D KC2018 09 15.10762 22 49 35.74 -16 21 16.5 19.6 RuER186850
K18R07D C2018 09 15.18841 22 51 09.71 -16 13 42.0 19.2 GVER186I52
K18R07D C2018 09 15.18859 22 51 09.90 -16 13 41.2 19.5 GVER186I52
K18R07D C2018 09 15.18981 22 51 11.24 -16 13 34.8 20.1 GVER186I52
K18R07D C2018 09 15.19000 22 51 11.43 -16 13 33.8 19.1 GVER186I52
K18R07D KC2018 09 15.23696522 51 58.14 -16 09 34.7 19.1 VuER186H21
K18R07D KC2018 09 15.24084622 52 02.37 -16 09 13.0 19.6 VuER186H21
K18R07D KC2018 09 15.24521822 52 07.12 -16 08 48.5 19.4 VuER186H21
K18R07D KC2018 09 15.45713422 56 13.30 -15 44 59.1 19.3 GVER186474
K18R07D KC2018 09 15.45836922 56 14.59 -15 44 52.6 19.3 GVER186474
K18R07D KC2018 09 15.45898622 56 15.21 -15 44 49.2 19.1 GVER186474
K18R07D KC2018 09 15.46022222 56 16.54 -15 44 42.8 18.9 GVER186474
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
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.
703 Catalina Sky Survey. Observer H. Groeller. Measurers B. M. Africano,
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
R. L. Seaman, F. C. Shelly. 0.68-m Schmidt + 10K CCD.
850 Cordell-Lorenz Observatory, Sewanee. Observer D. T. Durig. 0.3-m f/7.6
Schmidt-Cassegrain + CCD.
E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.61-m f/4.5
astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers E. J. Christensen,
H. Groeller, R. A. Kowalski. Measurers B. M. Africano, E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
F. C. Shelly. 1.0-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
Orbital elements:
2018 RD7 Earth MOID = 0.0092 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 303.66369 (2000.0) P Q
n 0.36243996 Peri. 167.47960 +0.84571196 +0.53354171
a 1.9482529 Node 160.26509 -0.49217871 +0.78726559
e 0.4770896 Incl. 1.73505 -0.20623143 +0.30910539
P 2.72 H 25.1 G 0.15 U 6
Residuals in seconds of arc
180913 703 0.3+ 0.1- 180913 104 0.4+ 0.1+ 180915 850 1.0+ 0.6-
180913 703 0.0 0.3+ 180914 I52 0.8- 0.0 180915 850 0.6+ 0.4-
180913 703 0.0 0.4- 180914 I52 0.2- 0.0 180915 850 0.2- 0.2+
180913 I52 0.2+ 0.2- 180914 I52 0.2- 0.2- 180915 850 0.7- 0.1+
180913 I52 0.2+ 0.0 180914 I52 0.1- 0.4- 180915 I52 0.1- 0.4+
180913 I52 0.2- 0.2+ 180914 H36 0.4+ 0.2- 180915 I52 0.2- 0.3+
180913 I52 0.1+ 0.0 180914 H36 0.6+ 0.5- 180915 I52 0.2- 0.1+
180913 E23 0.9- 1.1+ 180914 H36 0.3+ 0.1- 180915 I52 0.4- 0.1+
180913 E23 0.3- 0.6- 180914 H36 0.3+ 0.6- 180915 H21 0.1- 0.0
180913 E23 0.3+ 0.1+ 180914 H21 0.2- 0.5+ 180915 H21 0.0 0.0
180913 J95 0.1- 0.2+ 180914 H21 0.1- 0.3+ 180915 H21 0.2- 0.1+
180913 J95 0.2- 0.3+ 180914 H21 0.2- 0.3+ 180915 474 0.5+ 0.2+
180913 J95 0.3+ 0.5- 180914 K88 0.1- 0.3+ 180915 474 0.1+ 0.0
180913 104 0.4+ 0.1- 180914 K88 0.1- 0.0 180915 474 0.4- 0.1+
180913 104 0.2+ 0.1- 180915 850 0.6+ 0.4- 180915 474 0.2- 0.3-
Ephemeris:
2018 RD7 a,e,i = 1.95, 0.48, 2 q = 1.0188
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 08 16 15 41 46.6 -12 58 07 0.1088 1.0248 93.3 80.6 23.2
...
2018 08 31 17 06 55.6 -19 32 54 0.05587 1.0209 100.2 76.7 21.6
...
2018 09 08 19 42 12.0 -24 03 34 0.03745 1.0312 128.1 50.2 19.9
...
2018 09 14 22 26 16.8 -18 02 27 0.04072 1.0443 159.4 19.8 19.2
2018 09 15 22 47 20.8 -16 28 50 0.04287 1.0469 163.1 16.2 19.2
2018 09 16 23 05 59.6 -14 57 35 0.04537 1.0496 166.1 13.3 19.3
...
2018 09 22 00 18 35.9 -07 53 08 0.06535 1.0684 170.6 8.8 19.9
...
2018 09 30 01 00 24.7 -02 59 26 0.09920 1.0992 169.3 9.7 20.9
...
2018 10 15 01 26 56.0 +00 57 15 0.1759 1.1719 172.4 6.5 22.2
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-R186
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