MPEC 2009-F66 : 1999 FJ21
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M.P.E.C. 2009-F66 Issued 2009 Mar. 23, 20:23 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 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 http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 FJ21
Revision to MPEC 1999-F34
Additional Observations:
J99F21J C2009 03 23.31241 10 42 23.11 +55 54 30.4 19.2 V EF066703
J99F21J C2009 03 23.31855 10 42 21.99 +55 53 51.0 19.4 V EF066703
J99F21J C2009 03 23.32468 10 42 21.13 +55 53 11.4 19.3 V EF066703
J99F21J C2009 03 23.33075 10 42 19.90 +55 52 33.1 19.4 V EF066703
J99F21J C2009 03 23.35704 10 42 15.40 +55 49 45.1 19.2 V EF066703
J99F21J C2009 03 23.35777 10 42 15.33 +55 49 40.8 19.3 V EF066703
J99F21J C2009 03 23.35848 10 42 15.22 +55 49 37.3 19.0 V EF066703
J99F21J C2009 03 23.35921 10 42 15.08 +55 49 32.1 19.0 V EF066703
J99F21J C2009 03 23.39838 10 42 08.58 +55 45 19.7 19.2 R EF066854
J99F21J C2009 03 23.39933 10 42 08.41 +55 45 13.4 19.5 R EF066854
J99F21J C2009 03 23.82577 10 41 09.48 +55 00 17.7 EF066J95
J99F21J C2009 03 23.82982 10 41 08.84 +54 59 52.8 EF066J95
J99F21J C2009 03 23.83386 10 41 08.21 +54 59 27.4 19.1 R EF066J95
Observer details:
703 Catalina Sky Survey. Observer A. Boattini. Measurers E. C. Beshore,
A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.68-m Schmidt + CCD.
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 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
090323 703 1.59- 0.98+ 090323 J95 1.59- 0.97+ MPC 35087 +0.60 day
Orbital elements:
1999 FJ21 Earth MOID = 0.0589 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 115.40421 (2000.0) P Q
n 0.68507152 Peri. 67.62189 +0.07231728 -0.98952178
a 1.2744186 Node 19.51830 +0.72072082 -0.03476530
e 0.2745840 Incl. 21.96457 +0.68944304 +0.14013572
P 1.44 H 20.3 G 0.15 U 4
Residuals in seconds of arc
990322 691 0.3- 0.4+ 990326 327 0.4- 1.9- 990523 693 0.7- 0.5+
990322 691 0.6- 0.2+ 990327 557 0.3+ 0.4- 990523 693 1.2- 0.3+
990322 691 0.2- 0.2+ 990327 557 0.6+ 0.4+ 090323 703 0.2+ 0.5+
990323 691 0.8+ 0.2+ 990327 557 0.2+ 0.2- 090323 703 0.3- 0.2+
990323 691 1.1- 0.1+ 990327 557 0.4+ 0.0 090323 703 1.3+ 0.4-
990324 691 0.7+ 0.2+ 990410 426 0.5- 0.3- 090323 703 0.3- 0.0
990324 691 1.0- 1.7- 990410 426 0.2+ 0.4+ 090323 703 0.5- 0.0
990324 691 0.8+ 0.3+ 990410 426 0.3- 0.1+ 090323 703 0.1- 0.3+
990325 046 2.0+ 0.7+ 990411 422 1.2- 0.3- 090323 703 0.0 1.4+
990325 046 0.3+ 1.0+ 990412 426 1.5+ 0.2- 090323 703 0.2- 0.8+
990325 557 0.4- 0.3+ 990412 426 0.1+ 0.1+ 090323 854 0.0 0.5-
990325 557 0.3+ 0.2- 990412 422 0.2- 0.2+ 090323 854 0.1- 0.7-
990325 557 0.4+ 0.6+ 990412 422 0.4+ 0.1- 090323 J95 0.1+ 0.3-
990326 422 0.8+ 0.2+ 990412 422 0.0 0.3+ 090323 J95 0.0 0.0
990326 422 0.3+ 0.5+ 990419 422 0.5+ 0.5- 090323 J95 0.1- 0.1-
990326 327 (4.3+ 0.8+) 990419 422 0.2- 1.2-
990326 327 (2.3+ 1.0-) 990523 693 0.0 1.5+
Ephemeris:
1999 FJ21 a,e,i = 1.27, 0.27, 22 q = 0.9245
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 03 20 10 52.95 +61 41.2 0.270 1.145 117.3 50.6 19.6
2009 03 30 10 30.91 +44 23.5 0.292 1.189 124.6 43.8 19.7
2009 04 09 10 26.23 +29 15.6 0.340 1.232 126.0 41.1 20.0
2009 04 19 10 28.93 +17 34.6 0.408 1.275 123.2 41.3 20.5
2009 04 29 10 35.82 +08 53.0 0.493 1.316 118.5 42.3 21.0
2009 05 09 10 45.54 +02 19.2 0.587 1.355 113.5 43.1 21.5
2009 05 19 10 57.26 -02 48.9 0.689 1.392 108.4 43.6 21.9
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-F66
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