MPEC 2018-D78 : 2018 DW1
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M.P.E.C. 2018-D78 Issued 2018 Feb. 27, 15:00 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 DW1
Observations:
K18D01W* C2018 02 25.20240 10 43 23.16 +19 12 14.0 19.0 GUED078G96
K18D01W C2018 02 25.20751 10 43 29.09 +19 12 10.2 20.0 GUED078G96
K18D01W C2018 02 25.21263 10 43 35.04 +19 12 06.0 19.9 GUED078G96
K18D01W C2018 02 25.21773 10 43 41.02 +19 12 02.6 19.8 GUED078G96
K18D01W C2018 02 25.25107510 44 18.92 +19 11 29.6 19.3 GUED078H01
K18D01W C2018 02 25.25474010 44 23.19 +19 11 26.4 19.9 GUED078H01
K18D01W C2018 02 25.25555 10 44 25.39 +19 11 31.5 19.6 GUED078I52
K18D01W C2018 02 25.25665 10 44 26.69 +19 11 30.6 19.7 GUED078I52
K18D01W C2018 02 25.25774 10 44 27.96 +19 11 29.5 19.9 GUED078I52
K18D01W C2018 02 25.25886 10 44 29.28 +19 11 28.5 19.7 GUED078I52
K18D01W C2018 02 25.26435310 44 34.50 +19 11 17.3 20.3 GUED078H01
K18D01W C2018 02 25.27241910 44 44.01 +19 11 09.2 19.5 GUED078H01
K18D01W C2018 02 25.80052 10 57 48.82 +18 55 36.3 19.0 VSED078033
K18D01W C2018 02 25.80149 10 57 50.41 +18 55 35.0 19.2 VSED078033
K18D01W C2018 02 25.80248 10 57 52.03 +18 55 33.6 19.7 VSED078033
K18D01W C2018 02 25.80345 10 57 53.63 +18 55 31.9 19.8 VSED078033
K18D01W KC2018 02 25.84621 10 59 05.61 +18 54 05.9 UED078J95
K18D01W KC2018 02 25.85060 10 59 12.96 +18 53 58.0 UED078J95
K18D01W KC2018 02 25.85500 10 59 20.33 +18 53 50.9 19.2 GUED078J95
K18D01W C2018 02 25.85931 10 59 25.62 +18 54 00.2 19.2 VSED078033
K18D01W C2018 02 25.86036 10 59 27.39 +18 53 58.1 19.2 VSED078033
K18D01W C2018 02 25.86142 10 59 29.14 +18 53 56.1 18.9 VSED078033
K18D01W C2018 02 25.86248 10 59 30.89 +18 53 54.3 19.1 VSED078033
K18D01W C2018 02 25.86353 10 59 32.65 +18 53 52.5 18.9 VSED078033
K18D01W C2018 02 25.86460 10 59 34.42 +18 53 50.3 19.3 VSED078033
K18D01W C2018 02 25.86565 10 59 36.14 +18 53 48.6 19.5 VSED078033
K18D01W C2018 02 25.86670 10 59 37.91 +18 53 46.5 19.1 VSED078033
K18D01W C2018 02 26.22139 11 10 57.38 +18 40 38.7 19.0 GUED078I52
K18D01W C2018 02 26.22157 11 10 57.77 +18 40 38.7 19.8 GUED078I52
K18D01W C2018 02 26.22193 11 10 58.46 +18 40 37.3 19.2 GUED078I52
K18D01W C2018 02 26.23084 11 11 16.17 +18 40 16.0 19.1 GUED078703
K18D01W C2018 02 26.24139 11 11 37.24 +18 39 46.6 19.0 GUED078703
K18D01W C2018 02 26.24667 11 11 48.04 +18 39 33.2 19.2 GUED078703
K18D01W C2018 02 27.36955 12 08 33.11 +16 44 06.5 18.4 GUED078I52
K18D01W C2018 02 27.36973 12 08 33.88 +16 44 04.2 18.2 GUED078I52
K18D01W C2018 02 27.36991 12 08 34.59 +16 44 02.2 18.0 GUED078I52
K18D01W C2018 02 27.37009 12 08 35.34 +16 44 00.3 18.2 GUED078I52
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers U. Laux,
B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
703 Catalina Sky Survey. Observer R. A. Kowalski. 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.
G96 Mt. Lemmon Survey. 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.
1.5-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 R. A. Kowalski.
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:
2018 DW1 Earth MOID = 0.0034 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 355.73081 (2000.0) P Q
n 0.34918821 Peri. 216.07097 -0.88776121 +0.46029507
a 1.9972373 Node 351.33371 -0.41766540 -0.80816932
e 0.5584174 Incl. 1.10741 -0.19348295 -0.36741093
P 2.82 H 26.8 G 0.15 U 7
Residuals in seconds of arc
180225 G96 0.3+ 0.5+ 180225 033 0.8+ 0.0 180225 033 0.5+ 0.3-
180225 G96 0.3- 0.3+ 180225 033 0.7+ 0.1+ 180226 I52 0.3- 0.4-
180225 G96 0.7- 0.2- 180225 033 0.9+ 0.1- 180226 I52 0.1+ 0.0
180225 G96 0.5- 0.1+ 180225 J95 0.4- 0.2+ 180226 I52 0.2- 0.5-
180225 H01 0.0 0.1- 180225 J95 0.4- 0.4- 180226 703 0.8- 1.1+
180225 H01 0.4- 0.1+ 180225 J95 0.4- 0.1- 180226 703 1.1- 0.4-
180225 I52 0.4+ 0.1+ 180225 033 0.1+ 0.4+ 180226 703 2.1+ 0.5+
180225 I52 0.5+ 0.1+ 180225 033 0.5+ 0.2+ 180227 I52 0.3- 0.2+
180225 I52 0.4+ 0.0 180225 033 0.4+ 0.0 180227 I52 0.2+ 0.1-
180225 I52 0.4+ 0.0 180225 033 0.3+ 0.1+ 180227 I52 0.1- 0.1-
180225 H01 0.2- 0.1+ 180225 033 0.5+ 0.1+ 180227 I52 0.2+ 0.0
180225 H01 0.1- 0.1- 180225 033 0.4+ 0.2-
180225 033 0.7+ 0.2- 180225 033 0.1+ 0.0
Ephemeris:
2018 DW1 a,e,i = 2.00, 0.56, 1 q = 0.8819
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 01 28 09 29 10.3 +18 38 57 0.2451 1.2259 168.5 9.2 24.8
...
2018 02 12 09 38 10.7 +19 07 14 0.1229 1.1096 174.7 4.7 22.9
...
2018 02 20 09 54 53.5 +19 25 54 0.06448 1.0524 170.7 8.8 21.6
...
2018 02 26 11 03 23.4 +18 52 31 0.02336 1.0129 167.9 11.8 19.4
2018 02 27 11 45 08.4 +17 41 41 0.01726 1.0066 161.5 18.2 18.9
2018 02 28 13 04 07.9 +13 54 16 0.01220 1.0005 144.9 34.7 18.7
...
2018 03 06 20 11 41.9 -17 29 59 0.03641 0.9661 43.9 134.6 25.7
...
2018 03 14 20 54 42.2 -18 32 23 0.09224 0.9279 42.2 134.0 27.6
...
2018 03 29 21 20 06.9 -17 52 45 0.2012 0.8860 51.2 118.7 27.8
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-D78
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