Everyone,

Asteroid 2000 ET70 (H=18.1) will be making a close flyby of the Earth
on Feb 19th 2012 at a distance of 0.0454 AU.
We are scheduled to observe it with the Arecibo planetary radar from
Feb 12th-17th, with an expected signal-to-noise (SNR) exceeding 1000
per day and also with Goldstone from Feb 15th-19th.
There is no need for astrometry, but lightcurve observations that
identify the spin period would be quite valuable in our shape modeling
efforts.
The asteroid will brighten to Vmag < 17 on Jan 29th when it will be at
a DEC of +37 degrees and a solar elongation of 85 degrees.
At closest approach it is expected to reach Vmag ~ 13, DEC of -8
degrees and a solar elongation of 135 degrees.

Asteroid 2011 CP4 (H=21.2) will be making a close approach on Feb
~23rd at a distance of ~0.023 AU
We are scheduled to observe it with the Arecibo planetary radar from
Feb 21st-25th, with comparable SNR. We are also scheduled to observe
this target with Goldstone from Feb 22nd-24th.
For this object we are requesting both astrometry and lightcurve observations.
Radar observations are conditional on optical recovery due to current
1-2 degree position uncertainties.
The asteroid will brighten above mag. 20 in mid-Feb 2012.
Please send astrometry to the MPC as usual.


We will also observe 2002 QC7 (H=19.9) with Arecibo with an expected
SNR of 200/day.
Thanks in advance for the help!

Shantanu Naidu
UCLA graduate student
http://www2.ess.ucla.edu/~spn/
(on behalf of the radar team)