MPEC 2023-F123 : 2018 RW6
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Read MPEC 2023-F124
M.P.E.C. 2023-F123 Issued 2023 March 24, 12:49 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 RW6
Revision to MPEC 2018-R179
Additional Observations:
K18R06W C2023 03 21.95215012 03 58.28 +16 52 54.9 20.2 RoEF123K88
K18R06W C2023 03 21.95454612 03 58.16 +16 53 06.6 20.3 RoEF123K88
K18R06W C2023 03 21.95694512 03 58.13 +16 53 18.4 20.3 RoEF123K88
K18R06W KC2023 03 21.97818312 03 57.76 +16 55 03.8 20.1 RoEF123K88
K18R06W KC2023 03 21.98171912 03 57.69 +16 55 20.9 20.0 RoEF123K88
K18R06W KC2023 03 21.98525712 03 57.61 +16 55 38.8 20.0 RoEF123K88
K18R06W hC2023 03 22.00362212 03 57.36 +16 57 10.3 20.4 GVEF123L01
K18R06W hC2023 03 22.00572612 03 57.28 +16 57 20.4 20.3 GVEF123L01
K18R06W hC2023 03 22.00740912 03 57.27 +16 57 29.0 20.1 GVEF123L01
K18R06W hC2023 03 22.00909212 03 57.29 +16 57 37.2 20.2 GVEF123L01
K18R06W hC2023 03 22.01077512 03 57.19 +16 57 45.6 20.3 GVEF123L01
K18R06W hC2023 03 22.01253512 03 57.18 +16 57 53.8 20.0 GVEF123L01
K18R06W KC2023 03 22.01729212 03 57.36 +16 58 18.9 19.7 GXEF123I93
K18R06W KC2023 03 22.02215912 03 57.26 +16 58 42.3 19.9 GXEF123I93
K18R06W KC2023 03 22.02678212 03 57.18 +16 59 05.5 20.2 GXEF123I93
K18R06W mC2023 03 22.85886 12 03 45.93 +18 08 11.6 20.4 wVEF123O49
K18R06W mC2023 03 22.86236 12 03 45.86 +18 08 29.3 20.4 wVEF123O49
K18R06W mC2023 03 22.86584 12 03 45.78 +18 08 45.7 20.3 wVEF123O49
K18R06W KC2023 03 22.89248112 03 46.89 +18 10 52.9 20.0 RoEF123K88
K18R06W KC2023 03 22.89396 12 03 47.65 +18 11 04.6 19.5 GVEF123J04
K18R06W KC2023 03 22.89615 12 03 47.59 +18 11 15.9 19.7 GVEF123J04
K18R06W KC2023 03 22.89778512 03 46.74 +18 11 19.6 20.0 RoEF123K88
K18R06W KC2023 03 22.89833 12 03 47.54 +18 11 26.5 20.1 GVEF123J04
K18R06W KC2023 03 22.94636712 03 45.99 +18 15 23.4 20.2 GVEF123104
K18R06W KC2023 03 22.95080 12 03 45.88 +18 15 44.2 20.7 RrEF123106
K18R06W KC2023 03 22.95606 12 03 45.81 +18 16 11.4 20.8 RrEF123106
K18R06W KC2023 03 22.95640212 03 45.81 +18 16 13.6 20.7 GVEF123104
K18R06W KC2023 03 22.96133 12 03 45.60 +18 16 36.6 20.2 RrEF123106
K18R06W KC2023 03 22.96455212 03 45.71 +18 16 54.0 20.7 GVEF123104
K18R06W KC2023 03 22.96659 12 03 45.47 +18 17 03.1 20.4 RrEF123106
K18R06W KC2023 03 23.01754 12 03 45.01 +18 21 23.4 19.9 G EF123J43
K18R06W KC2023 03 23.02499 12 03 44.86 +18 22 00.4 19.9 G EF123J43
K18R06W KC2023 03 23.02522412 03 44.44 +18 21 56.5 20.2 GVEF123L01
K18R06W KC2023 03 23.03047312 03 44.34 +18 22 22.4 20.2 GVEF123L01
K18R06W KC2023 03 23.03242 12 03 44.70 +18 22 37.4 19.9 G EF123J43
K18R06W KC2023 03 23.03728312 03 44.23 +18 22 56.4 20.4 GVEF123L01
K18R06W KC2023 03 23.03972812 03 44.18 +18 23 08.8 20.2 GVEF123L01
K18R06W KC2023 03 23.04248112 03 44.13 +18 23 22.4 20.3 GVEF123L01
K18R06W 1C2023 03 23.92175 12 03 33.74 +19 36 40.4 20.2 VXEF123033
K18R06W 1C2023 03 23.92302 12 03 33.72 +19 36 46.6 20.4 VXEF123033
K18R06W 1C2023 03 23.92429 12 03 33.71 +19 36 53.1 20.4 VXEF123033
K18R06W 1C2023 03 23.92561 12 03 33.67 +19 36 59.8 20.5 VXEF123033
K18R06W KC2023 03 24.18180612 03 30.95 +19 58 28.6 20.2 GXEF123858
K18R06W KC2023 03 24.18864812 03 30.84 +19 59 03.0 20.0 GXEF123858
K18R06W KC2023 03 24.19555012 03 30.69 +19 59 37.9 19.9 GXEF123858
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3
Schmidt + CCD.
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m F4 Reflector + CCD.
106 Crni Vrh. Observer H. Mikuz. 0.6-m f/3.3 Deltagraph + CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m f/8.1
Schmidt-Cassegrain + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, M. Micheli, F.
Ocana, L. Conversi. Measurers A. Knofel, M. Micheli, F. Ocana, R.
Kresken, M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.
J43 Oukaimeden Observatory, Marrakech. Observer C. Rinner. 0.5-m f/3
reflector + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
O49 Purple Mountain Observatory, Yaoan Station. Observers F. Li, Y. Yuan, J.
Chen, A. Zhu, Y. N. Fu. Measurers B. Li, H. B. Zhao. 0.8-m f/10 Ritchey-
Chretien +2048 CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230321 K88 28+ 7+ 230324 858 27+ 8+ MPO461092 +17.0 days
Orbital elements:
2018 RW6 Earth MOID = 0.3712 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 318.58553 (2000.0) P Q
n 0.38537327 Peri. 77.43264 -0.34093807 +0.93681350
a 1.8701724 Node 171.32206 -0.92800543 -0.34870677
e 0.3910920 Incl. 31.29279 +0.15022371 -0.02800085
P 2.56 H 20.99 G 0.15 U 3
Residuals in seconds of arc
180912 G96 0.5+ 0.8+ 180917 V06 0.0 0.1- 230322 K88 0.7- 0.0
180912 G96 0.7- 0.4+ 180917 V06 0.4- 0.2- 230322 J04 0.1- 0.2-
180912 G96 0.1- 0.2- 180920 H21 0.8- 0.2- 230322 104 0.5- 0.2+
180912 G96 0.4- 0.3+ 180920 H21 0.9- 0.1- 230322 106 0.0 0.5-
180912 G96 0.4+ 0.4+ 180920 H21 1.1- 0.0 230322 106 0.5+ 0.4+
180912 G96 0.0 0.2- 230321 K88 0.7+ 0.4+ 230322 104 0.3- 0.3+
180912 G96 0.5- 0.0 230321 K88 0.4- 0.2+ 230322 106 1.1- 0.7-
180912 G96 0.4+ 0.2- 230321 K88 0.2- 0.1+ 230322 104 0.6+ 0.0
180913 H21 0.0 0.2+ 230321 K88 0.2+ 0.2+ 230322 106 1.5- 0.5-
180913 926 0.1- 0.6- 230321 K88 0.2+ 0.2- 230323 J43 0.1+ 0.2+
180913 H21 0.1+ 0.0 230321 K88 0.1- 0.1+ 230323 J43 0.2+ 0.0
180913 H21 0.1+ 0.6+ 230322 L01 0.1+ 0.0 230323 L01 0.0 0.3+
180913 926 0.2- 0.3- 230322 L01 0.5- 0.3- 230323 L01 0.0 0.1+
180913 I52 0.0 0.4- 230322 L01 0.2- 0.0 230323 J43 0.1+ 0.1-
180913 I52 0.2+ 0.4- 230322 L01 0.6+ 0.2- 230323 L01 0.2+ 0.1+
180913 I52 0.5- 0.2+ 230322 L01 0.4- 0.1- 230323 L01 0.2+ 0.4+
180913 I52 0.5- 0.2- 230322 L01 0.1- 0.7- 230323 L01 0.2+ 0.3+
180914 I52 0.2- 0.0 230322 I93 0.1+ 0.5+ 230323 033 0.2+ 0.1+
180914 I52 0.3- 0.3- 230322 I93 0.0 0.3- 230323 033 0.3+ 0.1-
180914 I52 0.1+ 0.2- 230322 I93 0.2+ 0.0 230323 033 0.5+ 0.1+
180915 711 0.3+ 0.2- 230322 O49 0.6+ 0.5+ 230323 033 0.3+ 0.1+
180915 711 0.7+ 0.1+ 230322 O49 0.5+ 0.8+ 230324 858 0.1+ 0.1+
180915 711 0.4+ 0.0 230322 O49 0.2+ 0.1- 230324 858 0.3+ 0.0
180915 H21 0.2+ 0.2+ 230322 K88 0.0 0.2- 230324 858 0.1+ 0.2+
180915 H21 0.1- 0.2+ 230322 J04 0.4+ 0.2-
180917 V06 0.3- 0.6+ 230322 J04 0.1+ 0.1+
Ephemeris:
2018 RW6 a,e,i = 1.87, 0.39, 31 q = 1.1388
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 02 22 12 02 52.6 -11 07 31 0.6071 1.5317 146.3 21.0 21.9
...
2023 03 09 12 05 30.8 +00 50 08 0.4684 1.4526 166.8 9.0 20.8
...
2023 03 17 12 04 52.2 +10 14 57 0.4212 1.4115 170.1 7.0 20.4
...
2023 03 23 12 03 45.2 +18 19 56 0.4007 1.3814 160.9 13.6 20.5
2023 03 24 12 03 32.5 +19 43 20 0.3985 1.3764 159.1 15.0 20.5
2023 03 25 12 03 19.6 +21 06 58 0.3968 1.3715 157.2 16.3 20.5
...
2023 03 31 12 02 07.3 +29 23 16 0.3935 1.3425 145.8 24.7 20.7
...
2023 04 08 12 01 21.4 +39 25 18 0.4061 1.3056 131.4 35.1 21.1
...
2023 04 23 12 06 16.9 +53 04 10 0.4620 1.2431 110.2 49.3 21.6
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-F123
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