Goldstone Radar Observations Planning: 2001 AV43


Background


2001 AV43 was discovered on January 5, 2001 by LINEAR.
Its absolute magnitude of 24.4 suggests a diameter within a factor of two of about 40 meters.
2001 AV43 has a rapid rotation period 0.17 hours and a lightcurve amplitude of 1.2 magnitudes, suggesting
a shape with substantial elongation (C. Hergenrother, pers. comm.).  A weak radar detection was obtained at Arecibo shortly 
after discovery.

This asteroid will approach within 0.007 AU (about 2.7 lunar distances) on November 18, 2013, when it will be
a strong radar target at Goldstone and Arecibo.  The SNRs should be strong enough for imaging.

This object had large orbital uncertainties until it was observed by station W85 (Las Cumbres Observatory 
Global Telescope A) at Cerro Tololo, Chile, on Sep. 13, 2013.   The uncertainties are now
small enough that pointing will not be a problem during the radar observations on Nov. 11.  
Orbital and Physical Characteristics  
Provisional Designation  2001 AV43
Discoverer               LINEAR        
Discovery date           2001 Jan 05
orbit type               Apollo        
Close approach dist.     0.045 AU      
Close approach dist.     17.5 LD       
Close approach date      Sep 24        

semimajor axis           1.278 AU
eccentricity             0.239    
inclination              0.28 deg       
perihelion distance      0.973 AU      
aphelion distance        1.583 AU      
Tisserand parameter      5.036    Not cometary

absolute magnitude (H)   24.4
diameter                 40 meters +- a factor of two
optical albedo           ?
rotation period          0.166+-0.003 h    Whiteley et al. 2002; Hergenrother et al., in prep.
lightcurve amplitude     1.2 mag   C. Hergenrother, pers. comm.
pole direction           ?           
spectral class           ?

Last update: 2013 November 15

FUTURE CLOSE APPROACHES Date (CT) Body CA Dist MinDist MaxDist Vrel TCA3Sg Nsigs P_i/p ---------------------- ----- ------- ------- ------- ------ ------ ------ ------- A.D. 2013 Nov 18.89887 Earth .007600 .007599 .007600 3.605 1.01 1.03E5 .000000 A.D. 2027 Aug 23.19248 Mars .057208 .057187 .057230 4.530 12.18 52888. .000000 A.D. 2029 Nov 11.07468 Moon .001645 .001634 .001657 4.876 20.72 18321. .000000 A.D. 2029 Nov 11.67127 Earth .002117 .002101 .002133 3.993 27.39 18532. .000000 A.D. 2078 Dec 15.21955 Earth .004684 .004425 .010436 3.892 10309. 2652.8 .000000 A.D. 2081 Dec 11.13605 Earth .004951 .004563 .252208 3.783 4.44E5 3325.3 .000000 NOTE: post-epoch CA list was truncated due to Earth TCA3Sg exceeding the set limit. Computed using JPL/Horizons solution 20.

Discovery MPEC

2001 AV43
http://www.minorplanetcenter.net/mpec/K01/K01A52.html


SNR Calculations

GOLDSTONE SNRS

2001 AV43:  D = 0.04 km,  P = 0.17 h,  OC albedo = 0.1
                            
w  DOY     Date            window          RA, dec   dist    runs      SNR/day   SNR/run
45 312-313 2013 Nov 08-09  22:50-06:30    332,  -8  0.021     601         38         2
45 313-314 2013 Nov 09-10  22:40-06:15    329,  -9  0.019     650         54         2
45 314-315 2013 Nov 10-11  22:25-06:00    327,  -9  0.018     708         78         3 * Scheduled

46 315-316 2013 Nov 11-12  22:10-05:40    324,  -9  0.016     775        110         5
46 316-317 2013 Nov 12-13  21:55-05:20    320,  -9  0.014     853        180         7 * Scheduled
46 317-318 2013 Nov 13-14  21:30-04:55    314, -10  0.012     945        280        10
46 319-320 2013 Nov 14-15  21:05-04:20    308, -10  0.011    1050        440        15
46 321-322 2013 Nov 15-16  20:30-03:40    300, -10  0.010    1167        710        23
46 323-324 2013 Nov 16-17  19:45-02:55    289, -10  0.009    1288       1100        33 * Scheduled
46 324-325 2013 Nov 17-18  18:45-02:00    276,  -9  0.008    1395       1500        43

47 325-326 2013 Nov 18-19  17:40-01:00    261,  -8  0.008    1461       1700        48
47 323-324 2013 Nov 19-20  16:30-00:05    246,  -7  0.008    1463       1500        44
47 324     2013 Nov 20     15:30-23:15    233,  -5  0.009    1402       1200        34
47 325     2013 Nov 21     14:35-22:35    223,  -3  0.010    1301        780        24
47 326     2013 Nov 22     13:50-22:05    214,  -2  0.011    1186        490        16
47 327     2013 Nov 23     13:15-21:40    208,   0  0.013    1074        310        10   Enters the beam at Arecibo
47 328     2013 Nov 24     12:50-21:20    203,   0  0.014     973        190         7

48 329     2013 Nov 25     12:30-21:05    199,  +1  0.016     885        130         5
48 330     2013 Nov 26     12:10-20:50    196,  +2  0.018     808         84         3
48 331     2013 Nov 27     11:55-20:40    194,  +2  0.020     742         58         2

Rise-set times changed by a maximum of about 12 minutes relative to the solution available prior
to when astrometry was obtained in Sep. 2013.

Goldstone SNRs assume Ptx = 450 kW and Tsys = 17 K 

- - - - - - - - - - -

ARECIBO SNRS
                             
 start date    window       RA, dec   dist   runs  SNR/day   SNR/run
2013 Nov 23  13:49-14:34    209,  -1  0.012   101   1400       150  Scheduled
2013 Nov 24  13:16-14:20    204,   0  0.014   134   1200       110  Scheduled
2013 Nov 25  12:51-14:05    200,  +1  0.016   138    920        85
2013 Nov 26  12:30-13:53    197,  +1  0.017   134    680        64
2013 Nov 27  12:14-13:41    194,  +2  0.019   129    500        49
2013 Nov 28  11:59-13:31    192,  +2  0.021   123    370        37  Scheduled 
2013 Nov 29  11:47-13:22    190,  +2  0.023   116    280        29  Scheduled
2013 Nov 30  11:36-13:13    189,  +3  0.025   114    210        22  Scheduled
2013 Dec 01  11:27-13:05    188,  +3  0.027   108    160        18  Scheduled
2013 Dec 02  11:18-12:58    187,  +3  0.029   102    130        14
2013 Dec 03  11:10-12:51    186,  +3  0.031    96    100        12
2013 Dec 04  11:02-12:44    185,  +3  0.033    91     80         9

Arecibo SNRs assume Ptx = 900 kW and Tsys = 23 K.  Currently Arecibo system parameters are
closer to Ptx = 500 kW and Tsys = 30 K, so the numbers above are probably optimistic.

Track Assignments


315 0000 0130 0415 0445  DSS-14  GSSR   AST 2001 AV43   
316 2315 0045 0405 0435  DSS-14  GSSR   AST 2001 AV43    
320 2045 2215 0040 0110  DSS-14  GSSR   AST 2001 AV43    

               UT         UT          PST                   Duration Round-trip  SNR/ 
week  DOY      Date       TX Window   TX Window             hh:mm    time (sec)  Run 
46    315      Nov 11     0030-0415   1630-2015 Nov 10       3:45     17           3     Begin 30 minutes into precal
46    317      Nov 12-13  2345-0405   1545-2005 Nov 12       4:20     14           7     Begin 30 minutes into precal
46    320-321  Nov 16-17  2115-0040   1315-1640 Nov 16       3:25      8.5        33     Begin 30 minutes into precal

The RTT on Nov. 16-17 is so short that we will probably get only about 5 seconds of data 
during each transmit/receive cycle.  Even so, we're going to do these observations monostatically
because the SNRs will be much higher and because the 8.5 second RTT should still provide
5 seconds of data per run.  The asteroid's Doppler broadening is sufficiently large that 5 seconds of 
data will still resolve the echoes in Doppler frequency.

The combined Goldstone + Arecibo data are going to provide really thorough rotation coverage
by this object: we'll see many rotations during each track.



Arecibo tracks:

         UT        UT          PST         AST          Duration   Round-trip   SNR/
DOY     Date       TX Window   TX Window   TX Window    hh:mm      time (sec)   Run 
---     ----       ---------   ---------   ---------    --------   ---------    -----
327     Nov 23     1349-1434   0539-0634   0949-1034    00:45       12          150
328     Nov 24     1316-1420   0516-0620   0916-1020    01:04       14          110
...skip three days due to conflicts...
332     Nov 28     1159-1331   0359-0531   0759-0931    01:32       21           37
333     Nov 29     1147-1322   0347-0522   0747-0922    01:35       23           29
334     Nov 30     1136-1313   0336-0513   0736-0913    01:37       25           22
335     Dec  1     1127-1305   0327-0505   0727-0905    01:38       27           18


Uncertainties

From Jon Giorgini, 2013 November 15:

I incremented to s37 by deweighting the now-apparent 4-6" outlier
discovery data, based on the comments about a 3-sigma update last
Tuesday.

The difference is
s37:2013 NOV 16 22:00      8.5799774681   103593.857 339.6678 -10.0226 289.577
s35:2013 NOV 16 22:00      8.5800113920   103592.216 339.6682 -10.0228 289.576
                           ------------   ----------
                           0.0000339           1.641

So 33.9 usec and 1.64 Hz different, both about 1.4 sigma. So it is
probably worthwhile going with s37 and its discounted outlier data.

Formal 3-sigma uncertainties with s37:

 Date__(UT)__HR:MN  POS_3sigma   DOP_X_3sig  RT_delay_3sig
 2013-Nov-16 21:00       4.459         3.41       0.000070
 2013-Nov-16 22:00       4.474         3.48       0.000072
 2013-Nov-16 23:00       4.487         3.52       0.000073
 2013-Nov-17 00:00       4.499         3.53       0.000075
 2013-Nov-17 01:00       4.508         3.52       0.000076

I doubt the outliers in 2000 are dynamics-related, since data from
other sites starting four months later does not share the problem.

- - - - - - - - - - 

From Jon Giorgini, 2013 November 8: 

For 2001 AV43, 103 optical measurements (2000-Aug-30 to 3013-Oct-28) were
combined with the one Doppler measurement obtained in 2001 at Arecibo to
estimate orbit solution #27.

OSOD with nominal predicts has been established on aardvark in the 
/2001av43 sub-directory.

Formal 3-sigma X-band uncertainties for s27:

 Date__(UT)__HR:MN  POS_3sigma   DOP_X_3sig  RT_delay_3sig
 2013-Nov-11 00:00       5.163         1.46       0.001089
 2013-Nov-12 00:00       6.600         2.57       0.001075
 2013-Nov-13 00:00       8.580         4.26       0.001049
 2013-Nov-14 00:00      11.341         6.90       0.001006
 2013-Nov-15 00:00      15.185        11.04       0.000933
 2013-Nov-16 00:00      20.362        17.32       0.000814
 2013-Nov-17 00:00      26.646        25.83       0.000630

- - - - - - - - - -

From Horizons, 2013 Sep. 24, Solution #16, #obs =  56 (2000-2013)

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2013-Nov-01 00:00 *   341.30130  -7.19121 0.03659566864287      3.025        0.51        1.85       0.001464
 2013-Nov-02 00:00 *   340.48808  -7.31809 0.03467698641829      3.135        0.49        1.79       0.001482
 2013-Nov-03 00:00 *m  339.60304  -7.44874 0.03276420009164      3.265        0.48        1.73       0.001498
 2013-Nov-04 00:00 *m  338.63169  -7.58430 0.03085716811649      3.423        0.45        1.64       0.001515
 2013-Nov-05 00:00 *m  337.55554  -7.72615 0.02895599027444      3.619        0.42        1.54       0.001530
 2013-Nov-06 00:00 *m  336.35074  -7.87604 0.02706112859563      3.871        0.39        1.40       0.001544
 2013-Nov-07 00:00 *m  334.98612  -8.03617 0.02517358473735      4.201        0.34        1.24       0.001556
 2013-Nov-08 00:00 *m  333.42032  -8.20921 0.02329514926799      4.642        0.29        1.04       0.001567
 2013-Nov-09 00:00 *m  331.59779  -8.39835 0.02142875075091      5.244        0.25        0.90       0.001574
 2013-Nov-10 00:00 *m  329.44278  -8.60719 0.01957895942960      6.081        0.29        1.04       0.001577
 2013-Nov-11 00:00 *m  326.85035  -8.83936 0.01775274848427      7.259        0.47        1.69       0.001574 *
 2013-Nov-12 00:00 *m  323.67288  -9.09749 0.01596069725374      8.939        0.81        2.96       0.001562
 2013-Nov-13 00:00 *m  319.70028  -9.38058 0.01421895620037     11.359        1.39        5.04       0.001535 *
 2013-Nov-14 00:00 *m  314.63274  -9.67800 0.01255250261333     14.864        2.31        8.40       0.001485
 2013-Nov-15 00:00 *m  308.05189  -9.95586 0.01100044551937     19.911        3.80       13.81       0.001398
 2013-Nov-16 00:00 *m  299.42034 -10.13031 0.00962394285077     26.929        6.12       22.23       0.001251
 2013-Nov-17 00:00 *   288.20638 -10.02960 0.00851486452087     35.747        9.35       33.97       0.001015 *
 2013-Nov-18 00:00 *   274.30813  -9.39573 0.00779463680796     44.415       12.74       46.29       0.000676
 2013-Nov-19 00:00 *   258.71070  -8.05092 0.00758045083655     48.919       14.35       52.17       0.000313
 2013-Nov-20 00:00 *   243.46100  -6.17094 0.00791709731449     46.691       13.00       47.25       0.000401
 2013-Nov-21 00:00 *   230.37051  -4.20851 0.00874268101624     39.809        9.94       36.14       0.000745
 2013-Nov-22 00:00 *   220.03400  -2.50484 0.00993606271352     31.984        6.99       25.39       0.001026
 2013-Nov-23 00:00 *   212.14976  -1.15655 0.01138128299698     25.241        4.81       17.47       0.001228
 2013-Nov-24 00:00 *   206.15701  -0.12578 0.01299327505424     20.006        3.36       12.19       0.001372
 2013-Nov-25 00:00 *   201.55070   0.65813 0.01471575085824     16.072        2.41        8.76       0.001476
 2013-Nov-26 00:00 *   197.95139   1.25867 0.01651238419473     13.121        1.79        6.50       0.001554
 2013-Nov-27 00:00 *   195.08996   1.72413 0.01835947386509     10.884        1.37        4.99       0.001614
 2013-Nov-28 00:00 *   192.77776   2.08933 0.02024115216714      9.162        1.09        3.95       0.001661
 2013-Nov-29 00:00 *   190.88156   2.37914 0.02214646988716      7.814        0.88        3.21       0.001700
 2013-Nov-30 00:00 *   189.30591   2.61142 0.02406764822089      6.742        0.73        2.67       0.001732
 2013-Dec-01 00:00 *   187.98124   2.79913 0.02599902156040      5.877        0.63        2.27       0.001760

Solution 16 represents an enormous improvement.  It will still be helpful to get additional astrometry,
but the pointing uncertainties on the first track (Nov. 11) are small enough for the radar observations.

- - - - - - - - - 

Previous solution (not recorded, but probably #14), from the summer of 2013:

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2013-Nov-01 00:00 *   341.56324  -7.07555 0.03623173466258   4167.094      719.94     2616.60       1.461973
 2013-Nov-03 00:00 *m  339.85936  -7.33035 0.03238867338910   4113.454      701.59     2549.89       1.508816
 2013-Nov-05 00:00 *m  337.79814  -7.60508 0.02856935184356   3956.268      674.46     2451.29       1.553782
 2013-Nov-07 00:00 *m  335.20022  -7.91269 0.02477650996662   3614.571      626.28     2276.20       1.596100
 2013-Nov-09 00:00 *m  331.75455  -8.27309 0.02102241349713   2946.177      523.61     1903.04       1.633756
 2013-Nov-11 00:00 *m  326.88920  -8.71351 0.01733970193893   1955.833      269.06      977.88       1.661093
 2013-Nov-13 00:00 *m  319.48406  -9.25455 0.01380585217302   3712.040      442.50     1608.24       1.661056
 2013-Nov-15 00:00 *m  307.25820  -9.81640 0.01060691372046  11963.060     2592.64     9422.85       1.578852
 2013-Nov-17 00:00 *   286.22839  -9.78276 0.00819909318185  29607.952     8329.03    30271.46       1.250797
 2013-Nov-19 00:00 *   255.57530  -7.51941 0.00745336852881  46516.146    14020.88    50958.25       0.466612
 2013-Nov-21 00:00 *   227.64040  -3.62989 0.00883179243788  40017.342     9944.09    36141.34       0.398350
 2013-Nov-23 00:00 *   210.31582  -0.74926 0.01160366685582  26765.522     5006.59    18196.22       0.917878
 2013-Nov-25 00:00 *   200.32320   0.92480 0.01500848066900  17903.163     2596.58     9437.16       1.190773

**********************************************************************************************

Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination:
(JPL/Horizons solution 16)

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.            delta  APmag    S-O-T /r  T-O-M/Illu%
 2013-Oct-11 00:00     351.90650  -4.59042 0.07959771594134  20.40 153.0981 /T   75.9/ 39.2
 2013-Oct-13 00:00     351.10800  -4.85125 0.07512646056387  20.35 150.2892 /T   46.9/ 61.9
 2013-Oct-15 00:00     350.28911  -5.10764 0.07077257321241  20.28 147.4610 /T   18.5/ 82.0
 2013-Oct-17 00:00     349.44683  -5.35908 0.06651892580117  20.22 144.6109 /T   11.6/ 95.4
 2013-Oct-19 00:00     348.57554  -5.60561 0.06235061569845  20.15 141.7338 /T   38.5/100.0
 2013-Oct-21 00:00     347.66699  -5.84764 0.05825500661236  20.07 138.8217 /T   65.0/ 95.8
 2013-Oct-23 00:00     346.71005  -6.08583 0.05422132444133  19.98 135.8641 /T   90.6/ 84.5
 2013-Oct-25 00:00     345.68995  -6.32116 0.05024017895953  19.89 132.8469 /T  115.4/ 68.5
 2013-Oct-27 00:00     344.58671  -6.55506 0.04630330568348  19.79 129.7510 /T  140.1/ 50.0
 2013-Oct-29 00:00     343.37277  -6.78960 0.04240355855960  19.68 126.5500 /T  165.1/ 31.2
 2013-Oct-31 00:00     342.00929  -7.02775 0.03853502146326  19.56 123.2068 /T  167.3/ 14.4
 2013-Nov-02 00:00     340.44001  -7.27376 0.03469314402867  19.43 119.6677 /T  139.5/  3.0
 2013-Nov-04 00:00     338.58019  -7.53389 0.03087507101672  19.29 115.8515 /T  109.7/  0.3
 2013-Nov-06 00:00     336.29552  -7.81781 0.02708085856481  19.13 111.6296 /T   78.5/  8.2
 2013-Nov-08 00:00     333.36130  -8.14055 0.02331682485914  18.95 106.7867 /T   46.6/ 25.3
 2013-Nov-10 00:00     329.38068  -8.52407 0.01960274541410  18.77 100.9429 /T   14.2/ 47.3
 2013-Nov-12 00:00     323.61089  -8.99339 0.01598678907500  18.61  93.3904 /T   19.0/ 69.2
 2013-Nov-14 00:00     314.58203  -9.54247 0.01258097145520  18.53  82.7387 /T   54.5/ 86.7
 2013-Nov-16 00:00     299.41591  -9.95052 0.00965392723688  18.86  66.3114 /T   95.1/ 97.3
 2013-Nov-18 00:00     274.42084  -9.18081 0.00782159563405   n.a.  41.0084 /T  143.6/ 99.8
 2013-Nov-20 00:00     243.67697  -5.98054 0.00793254069573   n.a.  15.8655 /T  156.2/ 94.7
 2013-Nov-22 00:00     220.23376  -2.36251 0.00993866360326   n.a.  24.4206 /L  111.2/ 83.2
 2013-Nov-24 00:00     206.30827  -0.01753 0.01298728606976   n.a.  38.4225 /L   74.0/ 67.1
 2013-Nov-26 00:00     198.06491   1.34480 0.01650101139464   n.a.  48.0981 /L   42.3/ 48.3
 2013-Nov-28 00:00     192.86548   2.16046 0.02022615918766   n.a.  55.0338 /L   14.3/ 28.9
 2013-Nov-30 00:00     189.37578   2.67188 0.02405001664170  21.17  60.3720 /L   21.1/ 11.9
 2013-Dec-02 00:00     186.91298   3.00434 0.02791669827347  21.18  64.7373 /L   50.7/  1.5
 2013-Dec-04 00:00     185.10471   3.22529 0.03179577980641  21.21  68.4788 /L   81.8/  1.5
 2013-Dec-06 00:00     183.73540   3.37290 0.03566948042252  21.26  71.8005 /L  112.8/ 12.9
 2013-Dec-08 00:00     182.67415   3.46979 0.03952601341633  21.31  74.8270 /L  142.6/ 32.2
 2013-Dec-10 00:00     181.83736   3.53036 0.04335568599969  21.35  77.6381 /L  169.1/ 54.1

Setups


We're going to start with the following setup, which should produce an echo relatively quickly,
and then we'll do ranging measurements.  Then we'll decide what to do next based on
the SNRs.  We're expecting a bandwidth of about 20 Hz.

CW setup:
---------------------------------------------------------------------------
TX polarization           RCP
RCV polarization          LCP & RCP
Frequency hops:           no hopping...round trip time is too short
Bandwidth:                4000 Hz 
Sampling interval:        1250 x 0.1 usec
FFT for PFS files:        2048 for 1.95 Hz resolution 

Ranging setups:
---------------------------------------------------------------------------
10-usec
baud             10 usec
code            127
PRP            1270 usec
FFT             128   
ncoh              1 
bandwidth       787 Hz   
resolution      12.3 Hz
TXOFF          +100Hz  (echo in bin 32 + 8 = 40)
---------------------------------------------------------------------------
11-usec 
baud             11 usec
code            127
PRP            1397 usec
FFT              64  
ncoh              1 
bandwidth       716 Hz   
resolution      11.2 Hz
TXOFF          +100 Hz  (echo in bin 32 + 9= 41) 
-------------------------------------------------------------------------

_____________________________________________________________________
POSSIBLE RANGING SETUPS: (code=127, FFT=64, single-pol'n) 
   These are from JX, w/ max-band (min-acc) options from Ray Jurgens.
   Currently configured for 5-sec records.
_______________________________________________________________________
 Setup        Baud        RP         1-acc 1-acc      
            usec   m      usec        band   res    acc  band     res 
_______________________________________________________________________
 
JX1XS110  11.000 1650    1397.0      715.8  11.2      2   358     5.6
JX1XS070   7.000 1050     889.0     1124.9  17.6      3   375     5.9
                                                      
JX1XS020   2.000  300     254.0     3937.0  61.5     12   328     5.1
                                                      4   984    15.4 

JX1XS010   1.000  150     127.0     7874.0 123.0     41   192     3.0 
                                                      8   984    15.4 

JX1XS005   0.500   75      63.5    15748.0 246.1    123   128     2.0 
                                                     15  1050    16.4 

JX1XS002   0.250   37.5    31.75   31496.1 492.1    492    64     1.0
                                                     30  1050    16.4 
 
JX1XS001   0.125   18.75   15.875  62992.1 984.3   1970    32     0.5 
                                                     60  1050    16.4 
____________________________________________________________________


Instructions

NOTE: Data should be moved to the appropriate subdirectories in aardvark:/export/data0/2001av43/raw/

2001 AV43 POINTING:

  OSOD and predicts will be on aardvark:

...not available yet...


POINTING  
                                                          TX Offsets    
Date (UTC)   DOY  hhmmss    RA        Dec         Macro   LHA     Dec    RTT    OSOD

... not available yet...

Transmit offsets are given in millidegrees.  


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

2001 AV43 GOLDSTONE MASTERLOG

============================================================================== Receive TX Setup hops dwell code ncoh FFT runs start -stop OSOD offset Poln Notes ------------------------------------------------------------------------------
Dr. Lance A. M. Benner | PHONE: (818) 354-7412 Mail Stop 183-610 | FAX: (818) 393-4445 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/2001AV43/2001AV43_planning.html

Asteroid Radar Astronomy
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