MPEC 2018-R124: 2018 RD4
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2018-R123
Read MPEC 2018-R125
M.P.E.C. 2018-R124 Issued 2018 Sept. 11, 17:06 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 RD4
Observations:
K18R04D* C2018 09 10.22573 23 22 38.81 -03 14 04.5 17.6 GVER124703
K18R04D C2018 09 10.23101 23 23 13.07 -03 16 30.5 18.5 GVER124703
K18R04D C2018 09 10.24158 23 24 22.20 -03 21 26.6 18.1 GVER124703
K18R04D C2018 09 10.41401 23 42 15.90 -04 36 49.2 18.2 GVER124703
K18R04D C2018 09 10.41419 23 42 16.97 -04 36 53.6 18.5 GVER124703
K18R04D C2018 09 10.41436 23 42 18.00 -04 36 57.7 18.3 GVER124703
K18R04D C2018 09 10.41454 23 42 19.04 -04 37 02.2 VER124703
K18R04D KC2018 09 10.90947 00 30 36.92 -07 34 28.2 18.4 VER124104
K18R04D KC2018 09 10.91229 00 30 50.16 -07 35 18.5 18.5 VER124104
K18R04D KC2018 09 10.91511 00 31 03.42 -07 36 08.7 18.4 VER124104
K18R04D KC2018 09 10.97113200 35 17.62 -07 52 38.4 19.1 GVER124L01
K18R04D KC2018 09 10.97231200 35 22.92 -07 52 57.6 19.4 GVER124L01
K18R04D KC2018 09 10.97349000 35 28.18 -07 53 17.1 19.2 GVER124L01
K18R04D KC2018 09 10.97574400 35 38.36 -07 53 55.8 19.2 GVER124L01
K18R04D HC2018 09 10.99949 00 37 28.70 -08 00 33.9 VER124204
K18R04D KC2018 09 11.00567 00 37 55.98 -08 02 15.6 18.3 GVER124204
K18R04D C2018 09 11.21922 00 54 29.64 -08 51 28.1 18.6 G ER124I52
K18R04D C2018 09 11.21960 00 54 31.14 -08 51 34.2 18.9 G ER124I52
K18R04D C2018 09 11.22037 00 54 34.19 -08 51 44.7 18.1 G ER124I52
K18R04D KC2018 09 11.60982201 18 04.41 -09 49 14.3 18.2 RVER124474
K18R04D KC2018 09 11.61047801 18 06.44 -09 49 21.1 18.8 RVER124474
K18R04D KC2018 09 11.61113401 18 08.44 -09 49 27.8 18.5 RVER124474
K18R04D KC2018 09 11.61179001 18 10.44 -09 49 34.7 18.7 RVER124474
K18R04D KC2018 09 11.61244601 18 12.46 -09 49 41.3 18.9 RVER124474
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 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 D. C. Fuls. 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.
I52 Steward Observatory, Mt. Lemmon Station. Observer 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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2018 RD4 Earth MOID = 0.0052 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 276.17216 (2000.0) P Q
n 0.51721129 Peri. 169.53462 +0.92027180 +0.39068589
a 1.5370596 Node 167.40286 -0.36575316 +0.87849488
e 0.3434396 Incl. 5.67031 -0.13901235 +0.27497507
P 1.91 H 28.5 G 0.15 U 5
Residuals in seconds of arc
180910 703 0.4- 0.0 180910 104 0.0 0.2- 180911 I52 0.4- 0.4+
180910 703 (3.3- 1.3+) 180910 104 0.1+ 0.1- 180911 I52 0.5- 0.2-
180910 703 (3.7+ 1.3-) 180910 L01 0.1- 0.5- 180911 I52 0.5- 0.4+
180910 703 0.4+ 0.0 180910 L01 0.2- 0.1+ 180911 474 0.0 0.1-
180910 703 0.1+ 0.0 180910 L01 0.7- 0.4+ 180911 474 0.3+ 0.1-
180910 703 0.1+ 0.1+ 180910 L01 0.2+ 0.4- 180911 474 0.1+ 0.0
180910 703 0.6- 0.1+ 180910 204 0.5+ 0.5+ 180911 474 0.0 0.1-
180910 104 0.7+ 0.4- 180911 204 0.3+ 0.1- 180911 474 0.2+ 0.1+
Ephemeris:
2018 RD4 a,e,i = 1.54, 0.34, 6 q = 1.0092
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 08 12 16 11 27.5 +15 00 44 0.09492 1.0289 96.7 78.0 26.2
...
2018 08 27 16 27 07.3 +15 07 43 0.04685 1.0105 88.7 88.7 25.0
...
2018 09 04 17 07 55.6 +15 04 21 0.02015 1.0096 92.3 86.6 23.1
...
2018 09 10 22 54 43.8 -01 10 34 0.0060211.0131 174.1 5.8 17.9
2018 09 11 00 37 16.9 -07 45 04 0.0076161.0140 159.5 20.3 18.9
2018 09 12 01 37 37.5 -10 55 06 0.01019 1.0150 145.1 34.5 20.0
...
2018 09 18 03 13 17.4 -14 15 10 0.02968 1.0228 126.2 52.5 22.8
...
2018 09 26 03 33 00.1 -14 33 45 0.05702 1.0383 127.3 50.2 24.2
...
2018 10 11 03 33 37.4 -14 04 15 0.1092 1.0814 137.4 38.7 25.4
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-R124
Read MPEC 2018-R123
Read MPEC 2018-R125
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)