2003 UV11 Goldstone Radar Observations Planning


Background


This asteroid was discovered on Oct. 21, 2003 by LONEOS in
Flagstaff, Arizona.  2003 UV11 has an absolute magnitude of 19.3, suggesting
a diameter within a factor of two of 430 meters, and recent partial lightcurves
obtained by B. D. Warner suggest a rotation period of 20-25 hours.  2003 UV11 will approach
within 0.013 AU (~5 lunar distances) on Oct. 30, 2010, when it will be a very strong radar target.

The primary objective at Goldstone is to use radar speckle tracking (in collaboration with Michael Busch)
to determine 2003 UV11's spin vector, which will greatly facilitate 3D shape estimation.
This will be a bistatic experiment using S-band CW transmissions at Arecibo and reception 
of echoes at DSS-13 and DSS-15.  We will not use DSS-14 for these observations.

One short Goldstone track is scheduled on October 29.
Arecibo observations are scheduled from October 27-30.

Arecibo is scheduled to transmit CW continuously from 2300-2330 UTC on Oct. 29.
Currently Arecibo's pointing is restricted to only 16 degrees away from zenith (i.e., 
horizons = 74 degrees; normally horizons at Arecibo are at 70.3 deg) due to work on the platform. 

Recent work at Arecibo has increased the transmitter power to at least 700 kW, so
previous SNR estimates on this planning page have all been adjusted upward to 
reflect the improvement.

2003 UV11 is an excellent optical target until Nov 1st when it becomes a day time object.

2003 UV11 has been classified as a "Potentially Hazardous Asteroid" by the Minor Planet Center.
Orbital and Physical Characteristics  
 orbit type               Apollo
 semimajor axis           1.451 AU     
 eccentricity             0.76
 inclination              6.0 deg       
 perihelion distance      0.344 AU     
 aphelion distance        2.558 AU     
 absolute magnitude (H)   19.3
 diameter                 0.43 km   (plus/minus a factor of two)
 rotation period          roughly 20-25 hours (B. D. Warner, pers. comm.)
 pole direction           unknown  
 lightcurve amplitude     unknown
 spectral class           unknown

Last update: 2010 Oct 27

Discovery

M.P.E.C. 2003-U39                                Issued 2003 Oct. 22, 05:54 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.

         Supported in part by the Steven and Michele Kirsch Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2003 UV11

Observations:
     K03U11V* C2003 10 21.22741 01 56 19.55 +08 33 46.7          16.2 R      699
     K03U11V  C2003 10 21.24737 01 56 10.83 +08 33 15.3                      699
     K03U11V  C2003 10 21.26740 01 56 01.99 +08 32 43.3                      699
     K03U11V  C2003 10 21.28646 01 55 53.38 +08 32 12.8          16.7        704
     K03U11V  C2003 10 21.28745 01 55 53.10 +08 32 11.7                      699
     K03U11V  C2003 10 21.29846 01 55 48.05 +08 31 54.0          17.0        704
     K03U11V  C2003 10 21.31067 01 55 42.60 +08 31 34.1          16.7        704
     K03U11V  C2003 10 21.32247 01 55 37.34 +08 31 15.0          16.9        704
     K03U11V  C2003 10 21.33418 01 55 32.11 +08 30 56.0          16.8        704
     K03U11V 5C2003 10 21.36303 01 55 19.63 +08 30 10.1          16.5 R      673
     K03U11V 5C2003 10 21.36384 01 55 19.28 +08 30 08.8                      673
     K03U11V 5C2003 10 21.36476 01 55 18.86 +08 30 07.3                      673
     K03U11V 5C2003 10 21.36557 01 55 18.50 +08 30 06.0                      673
     K03U11V 5C2003 10 21.36648 01 55 18.10 +08 30 04.5                      673
     K03U11V 5C2003 10 21.36730 01 55 17.76 +08 30 03.1                      673
     K03U11V  C2003 10 21.40527 01 54 59.98 +08 28 54.9          16.2 R      649
     K03U11V  C2003 10 21.40669 01 54 59.36 +08 28 52.5          16.4 R      649
     K03U11V  C2003 10 21.40813 01 54 58.72 +08 28 50.2          16.2 R      649
     K03U11V 5C2003 10 22.20249 01 48 56.22 +08 05 37.2          16.5 R      673
     K03U11V 5C2003 10 22.20341 01 48 55.74 +08 05 35.3                      673
     K03U11V 5C2003 10 22.20434 01 48 55.24 +08 05 33.6                      673
     K03U11V 5C2003 10 22.20527 01 48 54.81 +08 05 32.0                      673
     K03U11V 5C2003 10 22.20619 01 48 54.34 +08 05 30.0                      673
     K03U11V 5C2003 10 22.20712 01 48 53.87 +08 05 28.3                      673
     K03U11V  C2003 10 22.22518 01 48 43.52 +08 04 51.4          16.1 R      649
     K03U11V  C2003 10 22.22696 01 48 42.62 +08 04 48.0          16.1 R      649
     K03U11V  C2003 10 22.22873 01 48 41.70 +08 04 44.7          16.1 R      649

Observer details:
649 Powell Observatory, Louisburg.  Observers R. Trentman, R. Fredrick.
    0.75-m Newtonian + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.6-m
    reflector + CCD.
699 Lowell Observatory-LONEOS.  Observer B. A. Skiff.  0.59-m LONEOS Schmidt
    + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
    H. Stange.  Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers.  1.0-m
    f/2.15 reflector + CCD.

Orbital elements:
2003 UV11
Epoch 2003 Oct. 8.0 TT = JDT 2452920.5                  MPC
M 318.94627              (2000.0)            P               Q
n   0.57231352     Peri.  124.94479     -0.91895206     -0.39046113
a   1.4367462      Node    32.17492     +0.31936003     -0.81918530
e   0.7615196      Incl.    5.96975     +0.23137909     -0.42008993
P   1.72           H   19.9           G   0.15
From 27 observations 2003 Oct. 21-22.

Ephemeris:
2003 UV11                a,e,i = 1.44, 0.76, 6                   q = 0.3426
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 10 18    02 14.44   +09 41.1    0.216    1.209   168.9     9.1    17.6
2003 10 20    02 04.20   +09 03.7    0.189    1.184   173.2     5.7    17.1
2003 10 22    01 50.54   +08 12.3    0.163    1.158   177.0     2.6    16.6
2003 10 24    01 31.80   +06 59.3    0.137    1.131   173.3     5.9    16.3
2003 10 26    01 05.22   +05 11.0    0.114    1.105   164.8    13.6    16.2
2003 10 28    00 26.24   +02 24.8    0.093    1.077   152.9    24.9    16.1
2003 10 30    23 28.41   -01 48.3    0.076    1.049   135.9    41.2    16.0
2003 11 01    22 08.09   -07 22.1    0.068    1.021   113.2    63.3    16.3
2003 11 03    20 37.17   -12 25.6    0.069    0.993    88.4    87.6    17.2
2003 11 05    19 19.29   -15 11.5    0.081    0.963    67.3   108.3    18.4
2003 11 07    18 23.79   -16 08.2    0.098    0.934    52.0   123.2    19.8

Kyle E. Smalley              (C) Copyright 2003 MPC           M.P.E.C. 2003-U39

Read MPEC 2003-U38 

SNR Calculation

Target Name:    2003 UV11
HMag:           19.3
Diameter:       0.43 km  (plus/minus a factor of two)
Period:         20 h     B. D. Warner, pers. comm.

SNR estimates below assume Ptx = 700 kW at Arecibo.

SNRs at Arecibo and DSS-13/DSS-15 assuming Arecibo horizon = 74 degrees:
                                                  <--Arecibo-->    Goldstone  
                                                #    SNR/  SNR/     SNR/
 Start date    UT  window    RA, dec  dist    runs   date  run      run  
---------------------------------------------------------------------------
2010 Oct 23    04:10-06:21    43  16  0.103     35    190     31
2010 Oct 24    04:01-06:12    42  16  0.089     40    340     53
2010 Oct 25    03:50-06:02    41  16  0.074     48    690    100
2010 Oct 26    03:37-05:49    38  17  0.060     58   1600    210
2010 Oct 27    03:17-05:29    34  18  0.046     74   4600    540
2010 Oct 28    02:44-04:55    27  20  0.032     98  18000   1800
2010 Oct 29    01:37-03:39    10  22  0.020    136 110000   9300
2010 Oct 29-30 22:52-00:45   328  21  0.013    182 560000  42000   1100
2010 Oct 30    19:51-21:07   280   6  0.016    101 200000  20000

After Oct. 30 2003 UV11 moves too far south for Arecibo to track.


Track Assignments


Goldstone track at DSS-13 and DSS-15:
        UT          UT          PDT                  Duration  Round-trip
DOY     Date        TX Window   TX Window            hh:mm     time (sec)  SNR/RTT
---     ----        ---------   ---------            --------- -------     -------
302-303 Oct 29-30   2240-0055   1540-1755  Oct 29     2:15       13         1100   Total time available
                    2300-2330   1600-1630  Oct 29     0:30                         Receive S-band CW transmissions from Arecibo       
                    2330-0045    We will try to receive Arecibo 20 MHz (7.5 m) imaging transmissions.

- - - - - - - - - - - - - - - - - - -

Arecibo Tracks
The table below lists Arecibo view periods for horizons at 74 degrees (due to work
on the platform; normally the horizons are at 70.3 deg).

Horizon = 74 degrees:
        UT          UT          PDT                  AST                      Duration  
DOY     Date        TX Window   TX Window            TX Window                hh:mm     
---     ----        ---------   ---------            ---------                --------- 
300     Oct 27      0317 0529   2017 2229  Oct 26    2333 0112  Oct 26/27     2:12      
301     Oct 28      0244 0455   1944 2155  Oct 27    2300 0038  Oct 27/28     2:11      
302     Oct 29      0137 0339   1837 2039  Oct 28    2153 2323  Oct 28        2:02      
302/303 Oct 29/30   2252 0045   1552 1745  Oct 29    1906 2031  Oct 29        1:53      
303     Oct 30      1951 2107   1251 1407  Oct 30    1551 1707  Oct 30        1:16      

Uncertainties

From Jon Giorgini, Oct 19 2010:
With 375 optical measurements (1996-Oct-12 to 2010-Oct-17),
2003 UV11 solution #29 was computed.  3-sigma uncertainties
S-band are tabulated below:

 Date__(UT)__HR:MN   POS_3sigma  DOP_S_3sig   RT_delay_3sig
 2010-Oct-27 00:00        2.534        2.07        0.000520
 2010-Oct-28 00:00        3.400        1.86        0.000568
 2010-Oct-29 00:00        4.758        1.44        0.000649
 2010-Oct-30 00:00        8.079        1.44        0.000656
 2010-Oct-31 00:00        9.401        2.73        0.000285

---------------------------------------------------------------------

Apparent Magnitudes and Solar Elongations:

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.  APmag            delta    S-O-T /r
 2010-Oct-19 00:00      45.83749  14.63418  16.68 0.16579666541372 157.6403 /L
 2010-Oct-20 00:00      45.44951  14.77375  16.42 0.15082957617973 158.9720 /L
 2010-Oct-21 00:00      44.96100  14.94052  16.14 0.13593234191073 160.3937 /L
 2010-Oct-22 00:00      44.33727  15.14408  15.82 0.12110494141276 161.9348 /L
 2010-Oct-23 00:00      43.52446  15.39896  15.47 0.10634921917240 163.6391 /L
 2010-Oct-24 00:00      42.43436  15.72810  15.06 0.09167058954857 165.5738 /L
 2010-Oct-25 00:00      40.91199  16.16991  14.58 0.07708165835554 167.8425 /L
 2010-Oct-26 00:00      38.65916  16.79320  14.01 0.06261080784208 170.5803 /L
 2010-Oct-27 00:00      35.02455  17.73135  13.29 0.04832580783857 173.6216 /L
 2010-Oct-28 00:00      28.30129  19.25749  12.57 0.03441401738357 172.7442 /T
 2010-Oct-29 00:00      12.68712  21.74475  12.02 0.02155360506929 158.8872 /T
 2010-Oct-30 00:00     327.74991  20.47405  12.13 0.01320833387320 116.7041 /T
 2010-Oct-31 00:00     274.54622   4.05961  15.16 0.01769712667788  61.7747 /T
 2010-Nov-01 00:00     254.97884  -4.09172   n.a. 0.02967574430629  39.7959 /T


Setups


NOTE: This primarily a CW experiment at Goldstone.

Estimated bandwidth: ~0.6 Hz  (D = 0.43 km, P = 20 h)
Note that we're receiving at S-band!

CW setup:
---------------------------------------------------------------------------
TX polarization           LCP (at Arecibo)
RCV polarization          LCP & RCP
Frequency hops:           None           Arecibo does not hop their transmitter.                       
Dwell                     30 seconds     Create a new file every 30 seconds.
Other parts of the setup will be very different from regular CW 
observations, so the usual setups don't apply in this case.

Bandwidth:                
Sampling interval:        
VME FFT for PSD files:    

- - - - - - - - - - 

After CW observations conclude at 23:30 UTC, Arecibo will probably switch 
20 MHz (7.5 meter) resolution binary phase-coded delay-Doppler imaging.  
We will switch ephemerides and try to receive
images until the object sets at Arecibo at 0045 UTC.

We will post more information about the imaging observations soon.





Instructions

NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/2003UV11/raw/
DSS 13, DSS 15:
---------------
OSOD was set up on aardvark. Only the 2380 MHz receiver predicts
are intended to be used, so as to receive the Arecibo transmissions to
geocenter at 2380MHz:

/export/data3/osod/ops/2003uv11/
Files for use at DSS-15:
    PRDX.OUT.01-99-15.s29         DSS-15
   PUNCH.OUT.01-99-15.s29         DSS-15

Files for use at DSS-13:
    PRDX.OUT.01-99-13.s29         DSS-13
   PUNCH.OUT.01-99-13.s29         DSS-13


Files for bistatic imaging after the CW observations conclude:
 PRDX.OUT.01-01-13.s29
PUNCH.OUT.01-01-13.s29

 PRDX.OUT.01-01-15.s29
PUNCH.OUT.01-01-15.s29
These files are specific for Arecibo transmissions to each antenna.


2003 UV11 POINTING:


POINTING  
Date (UTC)  hhmmss      RA        Dec      OSOD

DSS-13 Macros (for 20 MHz imaging)

Macro A
 2010 OCT 29 23:30     20.6838 329.375      29
 2010 OCT 29 23:40     20.6130 328.918 
 2010 OCT 29 23:50     20.5407 328.460 

Macro B
 2010 OCT 29 23:50     20.5407 328.460 
 2010 OCT 30 00:00     20.4668 328.000 
 2010 OCT 30 00:10     20.3915 327.539 

Macro C
 2010 OCT 30 00:10     20.3915 327.539 
 2010 OCT 30 00:20     20.3146 327.077 
 2010 OCT 30 00:30     20.2362 326.613 

Macro D
 2010 OCT 30 00:30     20.2362 326.613 
 2010 OCT 30 00:40     20.1563 326.149 
 2010 OCT 30 00:50     20.0749 325.684 



DSS-15 Macros (for 20 MHz imaging)
 
Macro A
 2010 OCT 29 23:30     20.6832 329.375 
 2010 OCT 29 23:40     20.6124 328.918 
 2010 OCT 29 23:50     20.5401 328.460 

Macro B
 2010 OCT 29 23:50     20.5401 328.460 
 2010 OCT 30 00:00     20.4663 328.000 
 2010 OCT 30 00:10     20.3909 327.539 

Macro C
 2010 OCT 30 00:10     20.3909 327.539 
 2010 OCT 30 00:20     20.3140 327.077 
 2010 OCT 30 00:30     20.2356 326.613 

Macro D
 2010 OCT 30 00:30     20.2356 326.613 
 2010 OCT 30 00:40     20.1557 326.149 
 2010 OCT 30 00:50     20.0743 325.684 



PRDX.OUT.s??? TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL

2003 UV11 GOLDSTONE MASTERLOG

============================================================================== Receive TX Setup hops dwell code ncoh FFT runs start -stop OSOD offset Poln Notes ------------------------------------------------------------------------------ POINTING TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD
Dr. Lance A. M. Benner | PHONE: (818) 354-7412 Mail Stop 300-233 | FAX: (818) 354-9476 Jet Propulsion Laboratory | email: lance.benner@jpl.nasa.gov California Institute of Technology | Plan: To live long and prosper Pasadena, CA 91109-8099 http://echo.jpl.nasa.gov/asteroids/2003UV11/2003UV11_planning.html

Asteroid Radar Astronomy
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