[Iaude] MPEC Y85: 2020 YL2 [a=1.84,e=0.57,i=2.9,H=25.0]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Dec 22 03:24:32 EST 2020
M.P.E.C. 2020-Y85 Issued 2020 December 22, 08:23 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 YL2
Observations:
K20Y02L C2020 12 19.38708 09 15 01.62 -25 09 40.0 VEY085703
K20Y02L C2020 12 19.39243 09 13 56.37 -24 55 45.7 VEY085703
K20Y02L C2020 12 19.39778 09 12 52.01 -24 41 54.6 17.0 GVEY085703
K20Y02L* C2020 12 21.50969807 22 21.92 +05 49 27.6 17.81cVEY085T08
K20Y02L C2020 12 21.54887007 21 45.05 +05 58 26.6 17.85cVEY085T08
K20Y02L C2020 12 21.57714807 21 19.37 +06 04 44.7 18.24cVEY085T08
K20Y02L 4C2020 12 21.86116307 18 34.48 +07 00 05.2 18.0 GVEY085Z84
K20Y02L 4C2020 12 21.86232707 18 33.71 +07 00 18.8 18.1 GVEY085Z84
K20Y02L 4C2020 12 21.86490907 18 31.96 +07 00 47.7 17.7 GVEY085Z84
K20Y02L 4C2020 12 21.86619907 18 31.09 +07 01 01.2 18.5 GVEY085Z84
K20Y02L 4C2020 12 21.86749007 18 30.17 +07 01 16.5 17.6 GVEY085Z84
K20Y02L KC2020 12 22.18766907 15 19.88 +07 54 40.3 18.1 GVEY085W33
K20Y02L |C2020 12 22.19575 07 15 11.92 +08 01 41.9 18.3 VuEY085807
K20Y02L C2020 12 22.19602307 15 21.60 +07 55 56.1 18.39GVEY085I52
K20Y02L KC2020 12 22.19773707 15 13.70 +07 56 11.2 18.2 GVEY085W33
K20Y02L |C2020 12 22.19802 07 15 10.50 +08 02 02.3 18.1 VuEY085807
K20Y02L |C2020 12 22.20030 07 15 09.05 +08 02 22.3 17.9 VuEY085807
K20Y02L C2020 12 22.20168107 15 18.33 +07 56 47.6 17.69GVEY085I52
K20Y02L C2020 12 22.20734007 15 15.04 +07 57 39.0 17.67GVEY085I52
K20Y02L KC2020 12 22.20771807 15 07.56 +07 57 41.2 17.7 GVEY085W33
K20Y02L C2020 12 22.21300107 15 11.74 +07 58 30.0 18.38GVEY085I52
K20Y02L KC2020 12 22.24898107 14 43.75 +08 03 22.9 18.0 VuEY085H21
K20Y02L KC2020 12 22.25092007 14 42.60 +08 03 39.8 18.1 VuEY085H21
K20Y02L KC2020 12 22.25508507 14 40.11 +08 04 16.2 18.0 VuEY085H21
Observer details:
703 Catalina Sky Survey. Observer H. Groeller. Measurers D. Rankin, B. Gray,
F. C. Shelly. 1.5-m reflector + 10K CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
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.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, A. Heinze, H.
Weiland. Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, H.
Flewelling, A. Fitzsimmons, J. Robinson, N. Erasmus. 0.5-m reflector +
CCD.
W33 Transit Dreams Observatory, Campobello. Observer D. Wilde. 0.36-m
Schmidt-Cassegrain + CCD.
Z84 Calar Alto-Schmidt. Observer E. Petrescu. Measurers E. Petrescu, D.
Koschny, L. Conversi, M. Micheli, E. Schwab. 0.8-m f/3 Schmidt + CCD.
Orbital elements:
2020 YL2 Earth MOID = 0.0036 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 15.66672 (2000.0) P Q
n 0.39470640 Peri. 120.94625 +0.90953316 -0.41248713
a 1.8405739 Node 263.45733 +0.36166425 +0.84594734
e 0.5722559 Incl. 2.94412 +0.20481309 +0.33797554
P 2.50 H 25.04 G 0.15 U 7
Residuals in seconds of arc
201219 703 0.9+ 0.4- 201221 Z84 0.1+ 0.1+ 201222 807 0.3- 0.1-
201219 703 0.9- 0.4+ 201221 Z84 0.1+ 0.8- 201222 I52 0.1+ 0.1-
201219 703 (0.5- 2.5+) 201221 Z84 0.1+ 0.8- 201222 I52 0.1+ 0.0-
201221 T08 0.2- 0.4+ 201221 Z84 0.6- 0.1+ 201222 W33 0.1- 0.2+
201221 T08 0.4+ 0.1+ 201221 Z84 0.6- 0.1+ 201222 I52 0.2+ 0.1-
201221 T08 0.1+ 0.2- 201222 W33 0.0- 0.3+ 201222 H21 0.2- 0.0+
201221 Z84 0.0+ 0.4- 201222 807 0.1- 0.1- 201222 H21 0.0+ 0.1+
201221 Z84 0.2+ 0.1+ 201222 I52 0.0- 0.1- 201222 H21 0.2+ 0.3+
201221 Z84 0.2+ 0.1+ 201222 W33 0.1+ 0.0+
201221 Z84 0.1+ 0.1+ 201222 807 0.0- 0.1+
Ephemeris:
2020 YL2 a,e,i = 1.84, 0.57, 3 q = 0.7873
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 22 18 31 16.8 -17 31 43 0.2341 0.8160 38.0 131.8 27.3
...
2020 12 07 18 37 05.6 -18 04 20 0.09944 0.8955 24.3 153.1 28.8
...
2020 12 15 18 21 09.4 -22 15 38 0.03284 0.9521 11.8 167.8 32.5
...
2020 12 21 07 30 45.0 +03 24 37 0.01758 0.9990 149.7 29.7 17.6
2020 12 22 07 16 53.0 +07 27 33 0.02557 1.0071 155.8 23.6 18.2
2020 12 23 07 09 31.4 +09 34 17 0.03367 1.0152 159.4 19.9 18.7
...
2020 12 29 06 55 18.4 +13 33 44 0.08333 1.0652 168.9 10.2 20.4
...
2021 01 06 06 50 38.7 +14 57 42 0.1523 1.1341 171.4 7.4 21.8
...
2021 01 21 06 50 02.5 +16 11 04 0.2958 1.2661 160.1 15.3 23.8
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y85
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