MPEC 2021-J206 : 2016 YF8
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M.P.E.C. 2021-J206 Issued 2021 May 13, 19:47 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
2016 YF8
Revision to MPEC 2016-Y80
Additional Observations:
K16Y08F C2021 05 12.35578 16 21 27.69 -13 02 05.2 21.9 GVEJ206G96
K16Y08F C2021 05 12.36607 16 21 26.41 -13 01 50.9 22.1 GVEJ206G96
K16Y08F C2021 05 12.37122 16 21 25.84 -13 01 44.4 21.7 GVEJ206G96
K16Y08F C2021 05 12.49165916 21 12.257-12 58 56.68 21.72wUEJ206F51
K16Y08F C2021 05 12.50364116 21 10.803-12 58 40.33 22.02wUEJ206F51
K16Y08F C2021 05 12.51563216 21 09.351-12 58 23.89 21.75wUEJ206F51
K16Y08F C2021 05 12.52762016 21 07.891-12 58 07.45 21.75wUEJ206F51
K16Y08F KC2021 05 13.23618516 19 47.83 -12 42 04.0 22.0 VuEJ206H21
K16Y08F KC2021 05 13.24064616 19 47.28 -12 41 57.8 22.1 VuEJ206H21
K16Y08F KC2021 05 13.33728016 19 35.92 -12 39 43.8 21.67GVEJ206I52
K16Y08F KC2021 05 13.34400316 19 35.09 -12 39 34.7 21.21GVEJ206I52
K16Y08F KC2021 05 13.35072416 19 34.28 -12 39 25.2 21.42GVEJ206I52
K16Y08F KC2021 05 13.60748916 19 04.24 -12 33 05.4 20.8 GVEJ206474
K16Y08F KC2021 05 13.61100716 19 03.84 -12 33 00.6 21.7 GVEJ206474
K16Y08F KC2021 05 13.61452516 19 03.39 -12 32 55.2 20.6 GVEJ206474
K16Y08F KC2021 05 13.61804316 19 03.01 -12 32 50.9 20.8 GVEJ206474
Observer details:
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.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer K. W. Wierzchos. Measurers B. Gray, D.
Rankin, F. C. Shelly. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 1.3-m f/4.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer T. A. Pruyne.
Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
210512 G96 0.69- 0.04- 210513 474 0.70- 0.04- MPO403124 -0.30 days
Orbital elements:
2016 YF8 Earth MOID = 0.0684 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 89.50612 (2000.0) P Q
n 0.78002994 Peri. 181.98074 +0.76883580 -0.63403929
a 1.1687686 Node 217.78728 +0.58852667 +0.75237554
e 0.2092693 Incl. 7.78328 +0.25005574 +0.17867631
P 1.26 H 22.43 G 0.15 U 2
Residuals in seconds of arc
161222 C51 0.9+ 0.1+ 161229 Q62 0.7- 0.1- 170120 474 0.4- 0.2-
161222 C51 0.5+ 0.1+ 161229 Q62 1.3- 0.6- 170120 474 0.4- 0.0
161222 C51 0.2+ 0.2+ 161229 Q62 0.7- 0.5- 170127 474 0.1+ 0.0
161223 C51 1.1+ 0.5- 161229 474 0.1+ 0.4+ 170127 474 0.1+ 0.3+
161223 C51 1.0+ 0.1- 161229 474 0.4+ 0.8+ 170127 474 0.1- 0.2-
161223 C51 0.4+ 0.1- 161229 474 0.1+ 0.2+ 210512 G96 0.2+ 0.0
161223 C51 0.7+ 0.2- 161229 474 0.2- 0.0 210512 G96 0.4- 0.2+
161223 C51 1.0+ 0.4- 161229 474 0.5+ 0.1+ 210512 G96 0.3+ 0.3-
161227 Q62 1.0- 0.2- 161230 474 0.1- 0.6- 210512 F51 0.1- 0.0
161227 Q62 (9.2- 0.7+) 161230 474 0.2+ 0.1+ 210512 F51 0.0 0.0
161227 474 0.3- 0.0 161230 474 0.0 0.2+ 210512 F51 0.1+ 0.0
161227 474 0.5+ 0.2- 161231 807 0.0 0.0 210512 F51 0.1+ 0.0
161227 474 0.1- 0.6- 161231 807 0.0 0.1+ 210513 H21 0.1- 0.0
161227 Q62 (8.9- 1.6+) 161231 807 0.1+ 0.1+ 210513 H21 0.2- 0.1+
161227 474 0.2- 0.3+ 170101 474 0.0 0.3+ 210513 I52 0.0 0.1-
161227 Q62 0.6- 0.0 170101 474 0.1+ 0.0 210513 I52 0.0 0.2-
161227 Q62 (6.7- 2.5+) 170101 474 0.3- 0.0 210513 I52 0.3+ 0.1+
161227 Q62 0.6- 0.4- 170101 474 0.4- 0.1- 210513 474 0.6- 0.2-
161228 I11 0.1+ 0.0 170116 807 0.1+ 0.1- 210513 474 0.2- 0.2-
161228 I11 0.2+ 0.1+ 170116 807 0.2+ 0.1+ 210513 474 0.5- 0.3+
161228 I11 0.2+ 0.0 170116 807 0.1+ 0.0 210513 474 0.3+ 0.2-
161228 I11 0.1+ 0.1+ 170120 474 0.3- 0.1-
Ephemeris:
2016 YF8 a,e,i = 1.17, 0.21, 8 q = 0.9242
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 13 16 48 24.0 -21 32 18 0.5443 1.4133 129.6 33.1 23.2
...
2021 04 28 16 42 06.9 -17 54 25 0.4576 1.4094 146.0 23.6 22.6
...
2021 05 06 16 32 16.1 -15 20 28 0.4220 1.4044 155.8 17.1 22.2
...
2021 05 12 16 22 07.7 -13 09 54 0.4016 1.3994 163.2 12.1 21.9
2021 05 13 16 20 14.7 -12 47 12 0.3988 1.3985 164.3 11.3 21.9
2021 05 14 16 18 18.9 -12 24 17 0.3962 1.3975 165.3 10.6 21.8
...
2021 05 20 16 05 57.8 -10 04 32 0.3842 1.3910 169.1 7.9 21.6
...
2021 05 28 15 48 37.6 -07 02 24 0.3783 1.3808 163.9 11.8 21.7
...
2021 06 12 15 20 14.5 -02 31 41 0.3954 1.3564 144.3 25.9 22.3
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-J206
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