MPEC 2023-O23 : 2012 YF8
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M.P.E.C. 2023-O23 Issued 2023 July 17, 18:33 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
2012 YF8
Revision to MPEC 2013-A52
Additional Observations:
K12Y08F KC2023 07 14.87481 18 57 12.888-49 07 53.44 18.1 GXEO023L87
K12Y08F KC2023 07 14.87634 18 57 12.840-49 07 47.75 18.3 GXEO023L87
K12Y08F KC2023 07 14.88096 18 57 13.070-49 07 22.08 18.3 GXEO023L87
K12Y08F C2023 07 15.03269 18 57 18.32 -48 53 41.5 19.4 GVEO023M28
K12Y08F C2023 07 15.03423 18 57 18.38 -48 53 33.2 19.4 GVEO023M28
K12Y08F V2023 07 15.03498718 57 25.81 -48 53 24.6 WEO023247
K12Y08F v2023 07 15.0349871 289.14670 -30.52631 1710 EO023247
K12Y08F C2023 07 15.03581 18 57 18.44 -48 53 24.7 19.4 GVEO023M28
K12Y08F V2023 07 15.03712918 57 25.94 -48 53 13.7 WEO023247
K12Y08F v2023 07 15.0371291 289.14670 -30.52631 1710 EO023247
K12Y08F C2023 07 15.03737 18 57 18.53 -48 53 16.4 19.4 GVEO023M28
K12Y08F V2023 07 15.03926218 57 26.01 -48 53 03.2 WEO023247
K12Y08F v2023 07 15.0392621 289.14670 -30.52631 1710 EO023247
K12Y08F KB2023 07 15.08940018 57 25.707-48 49 04.63 19.8 GXEO023Y05
K12Y08F KB2023 07 15.09598318 57 25.888-48 48 29.91 20.0 GXEO023Y05
K12Y08F KB2023 07 15.10237218 57 26.090-48 47 56.94 18.7 GXEO023Y05
Observer details:
247 Roving Observer. Observers A. Schnabel, D. Ruhela. Measurer S. Deen.
0.43-m reflector + CCD.
L87 Moonbase South Observatory, Hakos. Observer G. Duszanowicz. Measurer J.
Camarasa. 0.28-m f/1.9 reflector + CCD.
M28 Lesedi Telescope-SAAO Observatory, Sutherland. Observers N. Erasmus, S.
Potter, C. van Gend, S. Chandra. Measurers N. Erasmus, T. Ngwane. 1.0-m
f/8 Reflector + CCD.
Y05 SONEAR Wykrota-CEAMIG, Serra da Piedade. Observer C. Jacques. 0.45-m
f/2.9 reflector + CMO.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230714 L87 57+ 23+ 230715 Y05 56+ 23+ MPO250163 +9.71 days
Orbital elements:
2012 YF8 Earth MOID = 0.0476 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 329.53134 (2000.0) P Q
n 0.38712712 Peri. 144.03357 -0.94586521 +0.31994578
a 1.8645197 Node 54.71535 -0.31120062 -0.84633148
e 0.6314439 Incl. 3.83045 -0.09215844 -0.42586116
P 2.55 H 22.25 G 0.15 U 1
Residuals in seconds of arc
121222 F51 0.1+ 0.1+ 130109 703 0.2+ 0.2+ 130112 204 0.2+ 0.0
121222 F51 0.0 0.1+ 130109 291 0.0 0.1- 130112 204 0.0 0.1+
121222 F51 0.0 0.0 130109 291 0.1+ 0.0 230714 L87 0.5- 1.3+
121222 F51 0.0 0.1- 130109 291 0.3+ 0.0 230714 L87 1.5- 1.0-
121223 H01 0.0 0.0 130110 704 0.3- 0.4- 230714 L87 0.8- 0.3+
121223 H01 0.2+ 0.1+ 130110 704 2.4- 0.4+ 230715 M28 1.0+ 0.9-
121223 H01 0.3+ 0.0 130110 704 0.7+ 0.5+ 230715 M28 0.9+ 1.0-
121223 H01 0.1- 0.1- 130110 704 0.0 0.6+ 230715 247 0.2- 0.9+
130109 703 0.6- 0.3+ 130110 H01 0.1+ 0.6- 230715 M28 0.9+ 1.0-
130109 703 0.2- 0.0 130110 H01 0.2+ 0.1- 230715 247 0.1+ 1.0+
130109 703 0.2- 0.0 130110 H01 0.1+ 0.0 230715 M28 1.1+ 1.2-
130109 703 0.3- 0.2- 130110 H01 0.0 0.1+ 230715 247 0.1- 0.7+
130109 703 0.5+ 1.1+ 130111 F51 0.3+ 0.0 230715 Y05 0.2- 0.2+
130109 703 0.4- 0.3+ 130111 F51 0.1- 0.1- 230715 Y05 0.3- 0.6+
130109 703 0.7+ 0.2- 130112 204 0.4+ 0.0 230715 Y05 0.2- 0.3+
Ephemeris:
2012 YF8 a,e,i = 1.86, 0.63, 4 q = 0.6872
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 06 17 07 12 10.9 +13 20 23 0.1655 0.8675 24.1 151.4 26.7
...
2023 07 02 07 50 57.8 -60 11 56 0.04874 1.0131 84.5 92.8 19.0
...
2023 07 10 18 46 54.7 -59 41 38 0.09660 1.0947 142.3 34.6 18.8
...
2023 07 16 18 58 21.4 -47 33 49 0.1549 1.1562 152.7 23.8 19.6
2023 07 17 18 59 14.9 -46 20 30 0.1651 1.1665 153.4 22.9 19.8
2023 07 18 19 00 02.1 -45 15 02 0.1755 1.1767 154.0 22.2 19.9
...
2023 07 24 19 03 37.6 -40 31 42 0.2403 1.2379 155.0 20.3 20.6
...
2023 08 01 19 07 42.3 -36 47 42 0.3327 1.3183 152.1 21.1 21.5
...
2023 08 16 19 16 55.1 -32 45 09 0.5250 1.4646 142.5 24.9 22.8
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