[Iaude] MPEC U211: 2008 WK61 [a=1.66,e=0.42,i=17.2,H=20.83]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Oct 23 10:21:45 EDT 2023
M.P.E.C. 2023-U211 Issued 2023 October 23, 14:20 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2008 WK61
Revision to MPEC 2008-W64
Additional Observations:
K08W61K 1C2023 10 19.33392506 22 43.964+54 01 20.24 20.60GVEU211G96
K08W61K 1C2023 10 19.33910706 22 46.218+54 01 15.53 20.83GVEU211G96
K08W61K 1C2023 10 19.34428306 22 48.446+54 01 10.34 20.40GVEU211G96
K08W61K 1C2023 10 19.34945606 22 50.729+54 01 05.34 20.56GVEU211G96
K08W61K C2023 10 19.37900006 23 03.400+54 00 37.18 20.5 GVEU211H01
K08W61K C2023 10 19.38240406 23 04.878+54 00 33.79 20.7 GVEU211H01
K08W61K C2023 10 19.39358806 23 09.725+54 00 22.73 20.6 GVEU211H01
K08W61K C2023 10 19.39958806 23 12.311+54 00 16.73 20.7 GVEU211H01
K08W61K KC2023 10 19.44592 06 23 31.86 +53 59 28.7 21.0 VqEU211734
K08W61K KC2023 10 19.45021 06 23 33.77 +53 59 25.0 20.7 VqEU211734
K08W61K KC2023 10 19.45449 06 23 35.56 +53 59 20.2 qEU211734
K08W61K mC2023 10 19.49732506 23 54.517+53 58 36.48 VEU211I52
K08W61K mC2023 10 19.49799206 23 54.899+53 58 35.80 VEU211I52
K08W61K mC2023 10 19.50073206 23 56.044+53 58 33.17 20.33GVEU211I52
K08W61K mC2023 10 19.50140006 23 56.245+53 58 31.98 21.52GVEU211I52
K08W61K C2023 10 22.57794306 47 00.537+52 51 21.13 20.78wXEU211F52
K08W61K C2023 10 22.59141706 47 06.470+52 51 00.10 20.35wXEU211F52
K08W61K C2023 10 22.60486806 47 12.358+52 50 39.54 20.71wXEU211F52
K08W61K C2023 10 22.61831606 47 18.252+52 50 18.47 20.86wXEU211F52
K08W61K KC2023 10 23.03957406 50 31.070+52 38 40.20 19.6 GVEU211J95
K08W61K KC2023 10 23.04822106 50 35.026+52 38 27.13 20.3 GVEU211J95
K08W61K KC2023 10 23.34645506 52 50.67 +52 30 12.9 21.1 VuEU211H21
K08W61K KC2023 10 23.35764406 52 55.61 +52 29 54.4 21.0 VuEU211H21
K08W61K KC2023 10 23.36202706 52 57.57 +52 29 47.5 20.8 VuEU211H21
K08W61K KC2023 10 23.47623006 53 49.045+52 26 34.91 20.62GVEU211I52
K08W61K KC2023 10 23.47840206 53 50.010+52 26 31.27 20.64GVEU211I52
K08W61K KC2023 10 23.48057206 53 50.968+52 26 27.56 20.55GVEU211I52
Observer details:
734 Farpoint Observatory, Eskridge. Observers D. Cromer, G. Hug, D. Goodin,
R. Valentine. Measurer G. Hug. 0.69-m f/3.54 reflector + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer D. Rankin. Measurers E. C. Beshore, D. Fay,
J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. K.
Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 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 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers G. J. Leonard, J. B.
Fazekas. Measurers E. C. Beshore, D. Fay, J. B. Fazekas, D. C. Fuls, A.
R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231019 G96 3.40- 2.91- 231023 I52 3.37- 3.44- E2023-P78 -1.57 days
Orbital elements:
2008 WK61 PHA, Earth MOID = 0.0213 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 314.87992 (2000.0) P Q
n 0.46061149 Peri. 212.60319 -0.25248437 -0.92536538
a 1.6605280 Node 253.38706 +0.93893290 -0.16370373
e 0.4198453 Incl. 17.16187 +0.23378760 -0.34190641
P 2.14 H 20.83 G 0.15 U 0
Residuals in seconds of arc
081121 704 0.1- 0.5+ 081126 204 0.2- 0.1- 231019 G96 0.1- 0.3-
081121 704 0.2+ 0.5+ 081126 204 0.1+ 0.1- 231019 G96 0.1+ 0.4-
081121 704 0.3- 0.1+ 081127 H55 0.1- 0.0 231019 H01 0.1- 0.0
081121 704 0.2+ 0.1+ 081127 H55 0.1- 0.1+ 231019 H01 0.0 0.0
081121 704 0.4- 0.7+ 081127 H55 0.2- 0.0 231019 H01 0.1+ 0.0
081124 704 0.3+ 0.7+ 081127 H55 0.2- 0.0 231019 H01 0.0 0.1-
081124 704 0.6+ 1.4+ 081128 J95 0.0 0.1- 231019 734 0.0 0.2+
081124 704 0.4+ 0.7+ 081128 J95 0.1+ 0.2- 231019 734 0.6+ 1.0+
081124 704 0.1- 0.2+ 081128 J95 0.0 0.0 231019 734 0.1+ 0.7+
081124 704 0.8+ 0.4+ 081201 704 0.5+ 0.2+ 231019 I52 0.2- 0.0
081124 704 0.5- 0.4+ 081201 704 0.3+ 0.0 231019 I52 0.6+ 0.0
081124 704 0.4+ 0.5+ 081201 704 0.7+ 0.0 231019 I52 0.3+ 0.3+
081124 704 0.2- 0.3+ 081201 704 0.2+ 0.5+ 231019 I52 0.4- 0.2-
081124 J95 0.2- 0.0 081201 704 0.6+ 0.7+ 231022 F52 0.0 0.0
081124 J95 0.1- 0.1+ 081202 H45 0.0 0.2- 231022 F52 0.2+ 0.4-
081124 J95 0.2- 0.2- 081202 H45 0.3- 0.3+ 231022 F52 0.0 0.1-
081124 J95 0.2- 0.0 081202 H45 0.2+ 0.2+ 231022 F52 0.0 0.1-
081124 J95 0.1- 0.1- 081202 H45 0.1- 0.7- 231023 J95 0.1- 0.3+
081125 H36 0.2- 0.2+ 081202 H45 0.1- 0.0 231023 J95 0.5+ 0.9+
081125 H36 0.1+ 0.2- 081202 H45 0.1+ 0.4- 231023 H21 0.3+ 0.2+
081125 H36 0.1+ 0.3- 081202 H45 0.2- 0.1- 231023 H21 0.1- 0.2+
081126 J95 0.1- 0.2- 081207 H55 0.2+ 0.0 231023 H21 0.0 0.6+
081126 J95 0.2+ 0.2- 081207 H55 0.2+ 0.2+ 231023 I52 0.0 0.1-
081126 J95 0.0 0.1- 081207 H55 0.0 0.0 231023 I52 0.1+ 0.0
081126 204 0.2- 0.0 081207 H55 0.1- 0.1+ 231023 I52 0.0 0.0
081126 204 0.1- 0.1- 231019 G96 0.1+ 0.3-
081126 204 0.0 0.2- 231019 G96 0.1+ 0.1-
Ephemeris:
2008 WK61 a,e,i = 1.66, 0.42, 17 q = 0.9634
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 09 23 03 48 28.1 +52 14 07 0.6059 1.3300 108.9 45.6 22.1
...
2023 10 08 05 05 35.3 +55 03 21 0.4698 1.2386 109.6 49.5 21.5
...
2023 10 16 05 58 32.1 +54 45 45 0.4047 1.1915 108.9 52.3 21.2
...
2023 10 22 06 42 37.2 +53 05 49 0.3602 1.1574 107.8 55.0 20.9
2023 10 23 06 50 11.2 +52 39 52 0.3531 1.1519 107.5 55.5 20.9
2023 10 24 06 57 47.3 +52 10 56 0.3462 1.1464 107.3 56.0 20.9
...
2023 10 30 07 43 23.6 +48 08 11 0.3079 1.1143 105.2 59.3 20.6
...
2023 11 07 08 40 56.7 +39 14 37 0.2668 1.0747 101.0 64.9 20.4
...
2023 11 22 10 08 33.9 +12 45 44 0.2348 1.0133 89.5 77.1 20.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-U211
More information about the Iaude
mailing list