2002 AY1 Goldstone Radar Observations Planning


Background


2002 AY1 was discovered on January 7, 2002 by LINEAR.  It was observed at Arecibo
two days later, which provided rough information about its dimensions, shape, and a 
constraint on its rotation period, but otherwise, there are no known physical observations
of this object and many of its characteristics are unknown.

2002 AY1 will approach within 0.0381 AU (15 lunar distances) on January 7, 2013, when it
will be a moderately strong radar target at Goldstone.
Its absolute magnitude of 20.6 suggests a diameter within a factor of two of 0.24 km.
Arecibo images obtained in 2002 suggest that this is a contact binary.  The 2002 radar 
observations yielded a circular polarization ratio of 0.21+-0.02, which is somewhat 
below the average for the NEA population as a whole.

We plan to observe 2002 AY1 on two days at Goldstone.  Observations that had been planned
for Arecibo have been cancelled due to equipment problems.

2002 AY1 will reach 16th magnitude in early January of 2013, when it should be a good
target for lightcurves and perhaps spectroscopy.

Due to its size and the proximity of its orbit to Earth's, the Minor Planet Center has
classified 2002 AY1 as a "Potentially Hazardous Asteroid."
Orbital and Physical Characteristics  
 orbit type               Aten
 semimajor axis           0.779 AU     
 eccentricity             0.438
 inclination              29.9 deg       
 perihelion distance      0.438 AU     
 aphelion distance        1.120 AU     
 absolute magnitude (H)   20.6
 diameter                ~0.24 km   
 rotation period          likely slower than 8 h (Arecibo radar data)
 pole direction           unknown
 lightcurve amplitude     unknown
 spectral class           unknown

Last update: 2013 January 7

Discovery MPEC


M.P.E.C. 2002-A30                                Issued 2002 Jan. 8, 22:52 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://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2002 AY1

Observations:
     K02A01Y* C2002 01 07.07338 01 12 53.88 +49 44 50.4          17.4        704
     K02A01Y  C2002 01 07.08889 01 12 45.84 +49 37 20.0          17.8        704
     K02A01Y  C2002 01 07.10454 01 12 37.78 +49 29 44.4          17.9        704
     K02A01Y  C2002 01 07.12074 01 12 29.54 +49 21 52.3          17.9        704
     K02A01Y  C2002 01 07.13655 01 12 21.56 +49 14 09.7          18.2        704
     K02A01Y  C2002 01 08.25545 01 05 15.33 +40 03 10.7          17.4 R      649
     K02A01Y  C2002 01 08.25647 01 05 14.82 +40 02 36.3          17.9 R      649
     K02A01Y  C2002 01 08.26418 01 05 12.41 +39 58 46.4          17.1 R      649
     K02A01Y  C2002 01 08.26519 01 05 12.35 +39 58 16.5          16.7 R      649
     K02A01Y  C2002 01 08.79954 01 02 35.62 +35 35 00.3          17.1 R      046
     K02A01Y tC2002 01 08.80323 01 02 34.46 +35 33 09.3          17.4 R      046
     K02A01Y tC2002 01 08.80342 01 02 34.36 +35 33 03.0          17.2 R      046
     K02A01Y tC2002 01 08.80359 01 02 34.30 +35 33 00.4          17.3 R      046
     K02A01Y tC2002 01 08.80377 01 02 34.11 +35 32 58.9          17.2 R      046

Observer details:
046 Klet.  Observer M. Tichy.  0.57-m f/5.2 reflector + CCD.
649 Powell Observatory, Louisburg.  Observers R. Fredrick, R. Trentman.
    Measurer R. Trentman.  0.75-m Newtonian + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli.  Measurers
    J. Stuart, R. Sayer, J. B. Evans, H. Viggh.  1.0-m f/2.15 reflector + CCD.

Orbital elements:
2002 AY1                                                             PHA 0.026D
Epoch 2002 Jan. 6.0 TT = JDT 2452280.5                  MPC
M 245.70092              (2000.0)            P               Q
n   1.43355693     Peri.  323.77545     -0.23900020     +0.84636387
a   0.7789796      Node   287.90000     -0.73103768     -0.47945982
e   0.4384080      Incl.   30.01199     -0.63911096     +0.23191913
P   0.69           H   20.9           G   0.15
From 12 observations 2002 Jan. 7-8.

Ephemeris:
2002 AY1                 a,e,i = 0.78, 0.44, 30                  q = 0.4375
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2002 01 06    01 22.50   +58 04.9    0.071    1.011   111.0    65.3    17.5
2002 01 07    01 13.48   +50 19.9    0.068    1.006   107.4    68.9    17.5
.
.

2002 02 04    00 19.08   -35 27.2    0.266    0.824    46.1   120.4    22.5
2002 02 05    00 17.36   -35 57.1    0.275    0.816    45.3   120.9    22.6

Brian G. Marsden             (C) Copyright 2002 MPC           M.P.E.C. 2002-A30


SNR Calculation

Target Name:   2002 AY1

D         = 0.24 km  
Period    = 8.0 h  based on 2002 Arecibo data, likely a lower bound    
OC albedo = 0.1      (A relatively conservative lower bound)

                         UT                               #                 max
week DOY start date    window        RA, dec   dist    runs        SNR   SNR/run
------------------------------------------------------------------------
  1  366 2012 Dec 31  01:33-23:50    166, +75  0.084     504         14         1 circumpolar
  1  366 2012 Dec 31  23:50-23:05    160, +78  0.075     560         22         1 circumpolar
  1    1 2013 Jan  1  23:05-21:24    147, +82  0.067     626         35         2 circulpolar
  1    2 2013 Jan  2  21:24-18:34    112, +85  0.060     699         56         2 circumpolar
  1    3 2013 Jan  3  18:34-15:58     55, +83  0.054     779         86         3 circumpolar
  1    4 2013 Jan  4  15:58-12:25     29, +77  0.048     874        130         5 circumpolar
  1    5 2013 Jan  5  16:53-09:40     19, +67  0.042     795        190         8 
  1    6 2013 Jan  6  18:22-08:15     14, +54  0.039     675        240        10
  2    7 2013 Jan  7  19:04-07:16     11, +39  0.038     598        250        11
  2    8 2013 Jan  8  19:35-06:29      9, +25  0.040     512        200        10
  2    9 2013 Jan  9  20:01-05:49      8, +12  0.043     424        140         7
  2   10 2013 Jan 10  20:23-05:13      7,  +2  0.049     343         80         5
  2   11 2013 Jan 11  20:43-04:42      6,  -6  0.056     277         44         3
  2   12 2013 Jan 12  21:01-04:13      6, -12  0.063     225         25         2
  2   13 2013 Jan 13  21:17-03:46      5, -17  0.072     184         14         1

Goldstone SNRs assume Ptx = 435 kW and Tsys = 18 K

Arecibo SNRs:

Assumptions:  D = 0.24 km,  P = 8.000 hr,  OC albedo = 0.100

                UT                                #                 max
 start date    window        RA, dec   dist     runs        SNR   SNR/run
-------------------------------------------------------------------------
2013 Jan  8  20:35-23:08      9, +27  0.039      114       2800       280
2013 Jan  9  20:22-23:00      8, +14  0.043      109       2100       210
2013 Jan 10  20:42-22:23      7,  +3  0.048       63        950       140

Arecibo SNRs assume Ptx = 800 kW and Tsys = 20 K.

Track Assignments


Goldstone tracks:

        UT         UT          PDT                 Duration   RTT    SNR/  
DOY     Date       TX Window   TX Window           hh:mm      (sec)  Run 
---     ----       ---------   ---------           ---------  -----  ----
  6     Jan 06     0200 0940   1800-0140 Jan 5-6    7:40       42     10   Overlaps Apophis from 0750-0940
  8     Jan 08     0230 0715   1830-2315 Jan 7      4:45       38     10   Back-to-back with Apophis with 15 minutes between when 2002 AY1 sets and when Apophis rises

Time for the 2002 AY1 track on Jan. 8  is 15 minutes into precal.


Requested Arecibo tracks:

        UT       UT          AST         PDT         Duration  Round-trip  SNR/   
DOY     Date     TX Window   TX Window   TX Window   hh:mm     time (sec)  Run 
---     ----     ---------   ---------   ---------   --------- ---------   ---

CANCELLED DUE TO EQUIPMENT PROBLEMS

This object is too far north for Arecibo to track before Jan. 8 and too far south
after Jan. 10.


Uncertainties

From Jon Giorigini, 2013 January 4:

With 73 optical measurements (2002-Jan-7 to 2013-Jan-2) and
2 delay and 1 Doppler from Arecibo in 2002, 2002 AY1 orbit
solution #25 was estimated. OSOD with nominal predicts was
established on aardvark in the /2002ay1 sub-directory.

Formal 3-sigma X-band uncertainties:

 Date__(UT)__HR:MN  POS_3sigma   DOP_X_3sig  RT_delay_3sig
 2013-Jan-05 00:00       1.175         5.68       0.000524
 2013-Jan-06 00:00       1.246         4.95       0.000513
 2013-Jan-07 00:00       1.406         4.57       0.000503
 2013-Jan-08 00:00       1.684         5.62       0.000488
 2013-Jan-09 00:00       1.954         7.12       0.000469

The small dataset was messy and needed clean-up as far as 
night-to-night biases by station. If it was all identified, 
the above uncertainties should be fine. If not, some potential 
exists for larger offsets than statistically suggested.

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

From Horizons, 2012 Sep 27, Solution #12, #obs = 58 (2010-2012):

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2013-Jan-01 00:00 *   163.46189  76.70450 0.07940273235079     11.439        8.43       30.64       0.002323
 2013-Jan-02 00:00 *   154.54759  80.18418 0.07078960363678     12.374        9.96       36.20       0.002657
 2013-Jan-03 00:00 *   129.52176  83.81580 0.06258867817223     13.218       11.75       42.69       0.003053
 2013-Jan-04 00:00 *    66.17866  84.02297 0.05498729444728     13.713       13.56       49.30       0.003517
 2013-Jan-05 00:00 *    30.71524  77.60018 0.04827148287638     13.346       14.69       53.41       0.004039
 2013-Jan-06 00:00 *    19.09235  67.49312 0.04286066287702     11.343       13.56       49.27       0.004567
 2013-Jan-07 00:00 *    13.86126  54.62069 0.03929761035095      7.379        8.13       29.55       0.004980
 2013-Jan-08 00:00 *    10.94489  39.97611 0.03810296795121      5.496        1.89        6.87       0.005111
 2013-Jan-09 00:00 *     9.09603  25.36072 0.03948980176977     10.047       10.77       39.13       0.004886
 2013-Jan-10 00:00 *     7.81938  12.48929 0.04320693856190     14.025       15.50       56.34       0.004402
 2013-Jan-11 00:00 *m    6.88108   2.08150 0.04872013734948     15.731       16.08       58.45       0.003828
 2013-Jan-12 00:00 *m    6.15662  -6.00794 0.05549276925740     15.850       14.63       53.19       0.003277

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

Apparent Magnitudes, Solar Elongations, Lunar Elongations, and Lunar Illumination:

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.            delta  APmag    S-O-T /r  T-O-M/Illu%
 2013-Jan-01 00:00     163.46131  76.73302 0.07941861441040  17.25 118.6707 /L   68.0/ 88.2
 2013-Jan-02 00:00     154.51822  80.21489 0.07080794981688  17.00 118.7170 /L   74.6/ 81.0
 2013-Jan-03 00:00     129.34621  83.84375 0.06261005694194  16.74 118.3617 /L   83.9/ 72.4
 2013-Jan-04 00:00      65.83651  84.01892 0.05501237219062  16.49 117.3387 /T   95.7/ 62.6
 2013-Jan-05 00:00      30.58428  77.57690 0.04830092478707  16.27 115.2331 /T  109.7/ 51.9
 2013-Jan-06 00:00      19.03092  67.46859 0.04289483482795  16.12 111.5027 /T  124.9/ 40.9
 2013-Jan-07 00:00      13.82539  54.60366 0.03933601163925  16.11 105.7277 /T  137.4/ 30.1
 2013-Jan-08 00:00      10.92123  39.97283 0.03814376284136  16.29  98.1570 /T  138.8/ 20.0
 2013-Jan-09 00:00       9.07928  25.37223 0.03953033017820  16.66  89.9614 /T  126.1/ 11.4
 2013-Jan-10 00:00       7.80700  12.51140 0.04324505770561  17.15  82.4914 /T  107.3/  4.9
 2013-Jan-11 00:00       6.87169   2.10887 0.04875490332170  17.67  76.4067 /T   87.9/  1.1
 2013-Jan-12 00:00       6.14939  -5.97907 0.05552413523607  18.17  71.6852 /T   70.0/  0.2
 2013-Jan-13 00:00       5.56803 -12.21902 0.06314527548959  18.62  68.0382 /T   54.0/  2.2
 2013-Jan-14 00:00       5.08279 -17.07559 0.07134237985178  19.02  65.1686 /T   40.7/  6.7
 2013-Jan-15 00:00       4.66428 -20.91445 0.07993541139726  19.37  62.8473 /T   31.4/ 13.4

Setups


For the January 8 2002 AY1 track, we'll start with the CW setup below, do 10 runs,
and then switch to 1/4 usec BPC imaging for the rest of the track.

We will stop no later than 07:00 in order to reconfigure for Apophis, which 
enters the beam at 07:30.


CW Setup:
TX polarization           RCP
RCV polarization          LCP & RCP
Frequency hops:           no hops
Bandwidth:                4000 Hz 
Sampling interval:        2500 x 0.1 usec
VME FFT for PSD files:    4096 for 0.98-Hz resolution 

Ranging setups:
---------------------------------------------------------------------------
10-usec
baud             10 usec
code            127
PRP            1270 usec
FFT             128   
ncoh              1 
bandwidth       787 Hz   
resolution      6.15 Hz
TXOFF          +100Hz  (echo in bin 64+16=80)
---------------------------------------------------------------------------
11-usec 
baud             11 usec
code            127
PRP            1397 usec
FFT             128  
ncoh              1 
bandwidth       716 Hz   
resolution      5.6 Hz
TXOFF          +100 Hz  (echo in bin 64+18=82) 
-------------------------------------------------------------------------
1-usec 
baud            1 usec
code            255
FFT             256
ncoh             6
bandwidth        653.6 Hz   
resolution       2.55 Hz
TXOFF           +50 Hz -> echo would be centered at 128 + 20 = 148
-------------------------------------------------------------------------
0.125-usec imaging
baud            0.125 usec
code            511
FFT             1024
ncoh            150 
bandwidth       104.4  Hz     
resolution      0.1 Hz
TXOFF          +10 Hz -> echo would be centered at 512 + 98 = 610

_____________________________________________________________________
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/data0/2002AY1/raw/

2002 AY1 POINTING:

  OSOD and predicts are on aardvark 

BPC:
/export/data3/osod/ops/2002ay1/PRDX.OUT.14f-14-14.s25
                               /PUNCH.OUT.14f-14-14.s25
                               /EPH.OUT.s25
WFG:
/export/data3/osod/ops/2002ay1/PRDX.OUT.14v-14-14.s25
                              /PUNCH.OUT.14v-14-14.s25


POINTING  
                                                  TX Offsets    
Date (UTC)  DOY  hhmmss    RA        Dec   Macro   LHA    Dec    RTT    OSOD
2013 01 06  006  010000  18.9968 67.0890    A                    42.6    25
2013 01 06  006  020000  18.6755 66.6004    A                    42.4
2013 01 06  006  030000  18.3641 66.1040    A       3.6  -5.9    42.2
2013 01 06  006  040000  18.0644 65.5998    A                    42.0
2013 01 06  006  050000  17.7777 65.0883    AB                   41.9
2013 01 06  006  060000  17.5053 64.5701     B                   41.7
2013 01 06  006  070000  17.2476 64.0457     B      2.9  -6.1    41.5
2013 01 06  006  080000  17.0048 63.5161     B                   41.4
2013 01 06  006  090000  16.7764 62.9822     B                   41.2


2013 01 08  008  010000  11.0156 39.4299    A                    38.0    29
2013 01 08  008  020000  10.9061 38.8060    A                    38.0
2013 01 08  008  030000  10.7994 38.1803    A                    38.1
2013 01 08  008  040000  10.6965 37.5532    A       1.1  -6.7    38.1
2013 01 08  008  050000  10.5985 36.9252    A                    38.1
2013 01 08  008  060000  10.5058 36.2971    A                    38.1
2013 01 08  008  070000  10.4190 35.6694    A                    38.2

Transmit offsets are given in millidegrees.  


PRDX.OUT.14f-14-14.s25 TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL 2013 JAN 06 02:00 42.3934392957 437843.649 0.2573 66.6004 18.676 58.825 2013 JAN 06 02:10 42.3628087715 436146.174 2.8168 66.5182 18.623 58.864 2013 JAN 06 02:20 42.3322974390 434442.932 5.3760 66.4358 18.571 58.831 2013 JAN 06 02:30 42.3019056748 432734.714 7.9349 66.3532 18.518 58.726 2013 JAN 06 02:40 42.2716337937 431022.317 10.4935 66.2703 18.467 58.548 2013 JAN 06 02:50 42.2414820603 429306.548 13.0518 66.1873 18.415 58.299 2013 JAN 06 03:00 42.2114506886 427588.220 15.6097 66.1040 18.364 57.981 2013 JAN 06 03:10 42.1815398234 425868.146 18.1674 66.0205 18.313 57.595 2013 JAN 06 03:20 42.1517495644 424147.147 20.7247 65.9368 18.263 57.144 2013 JAN 06 03:30 42.1220799477 422426.043 23.2817 65.8529 18.213 56.630 2013 JAN 06 03:40 42.0925309459 420705.650 25.8383 65.7687 18.163 56.056 2013 JAN 06 03:50 42.0631024805 418986.787 28.3946 65.6844 18.113 55.426 2013 JAN 06 04:00 42.0337944219 417270.266 30.9506 65.5998 18.064 54.743 2013 JAN 06 04:10 42.0046065778 415556.892 33.5061 65.5151 18.016 54.011 2013 JAN 06 04:20 41.9755386902 413847.464 36.0613 65.4301 17.967 53.232 2013 JAN 06 04:30 41.9465904641 412142.772 38.6161 65.3450 17.919 52.411 2013 JAN 06 04:40 41.9177615370 410443.595 41.1706 65.2596 17.872 51.550 2013 JAN 06 04:50 41.8890514925 408750.699 43.7246 65.1741 17.825 50.654 2013 JAN 06 05:00 41.8604598700 407064.836 46.2783 65.0883 17.778 49.725 2013 JAN 06 05:10 41.8319861447 405386.742 48.8315 65.0024 17.731 48.766 2013 JAN 06 05:20 41.8036297528 403717.136 51.3844 64.9163 17.685 47.781 2013 JAN 06 05:30 41.7753900686 402056.718 53.9368 64.8300 17.640 46.771 2013 JAN 06 05:40 41.7472664304 400406.166 56.4889 64.7435 17.594 45.741 2013 JAN 06 05:50 41.7192581174 398766.139 59.0405 64.6569 17.550 44.692 2013 JAN 06 06:00 41.6913643756 397137.271 61.5918 64.5701 17.505 43.627 2013 JAN 06 06:10 41.6635843892 395520.169 64.1426 64.4831 17.461 42.548 2013 JAN 06 06:20 41.6359173314 393915.418 66.6930 64.3959 17.418 41.457 2013 JAN 06 06:30 41.6083623046 392323.571 69.2430 64.3086 17.375 40.357 2013 JAN 06 06:40 41.5809183858 390745.157 71.7926 64.2211 17.332 39.249 2013 JAN 06 06:50 41.5535846159 389180.670 74.3418 64.1335 17.290 38.136 2013 JAN 06 07:00 41.5263600086 387630.575 76.8905 64.0457 17.248 37.019 2013 JAN 06 07:10 41.4992435334 386095.307 79.4389 63.9578 17.206 35.900 2013 JAN 06 07:20 41.4722341433 384575.262 81.9868 63.8697 17.165 34.781 2013 JAN 06 07:30 41.4453307459 383070.807 84.5343 63.7815 17.124 33.663 2013 JAN 06 07:40 41.4185322554 381582.271 87.0814 63.6932 17.084 32.548 2013 JAN 06 07:50 41.3918375270 380109.947 89.6281 63.6047 17.044 31.438 2013 JAN 06 08:00 41.3652454276 378654.091 92.1744 63.5161 17.005 30.334 2013 JAN 06 08:10 41.3387547889 377214.923 94.7203 63.4274 16.966 29.237 2013 JAN 06 08:20 41.3123644347 375792.623 97.2658 63.3386 16.927 28.150 2013 JAN 06 08:30 41.2860731776 374387.332 99.8109 63.2497 16.889 27.072 2013 JAN 06 08:40 41.2598798279 372999.152 102.3556 63.1606 16.851 26.007 2013 JAN 06 08:50 41.2337831776 371628.147 104.8999 63.0715 16.814 24.955 2013 JAN 06 09:00 41.2077820219 370274.338 107.4438 62.9822 16.776 23.918 2013 JAN 08 02:20 38.0415643436 -39479.384 15.0477 38.5976 10.870 77.589 2013 JAN 08 02:30 38.0444204438 -42013.702 17.5723 38.4933 10.852 75.651 2013 JAN 08 02:40 38.0474539401 -44540.686 20.0969 38.3890 10.835 73.694 2013 JAN 08 02:50 38.0506642600 -47058.860 22.6214 38.2847 10.817 71.722 2013 JAN 08 03:00 38.0540507346 -49566.763 25.1458 38.1803 10.799 69.742 2013 JAN 08 03:10 38.0576126000 -52062.946 27.6701 38.0759 10.782 67.755 2013 JAN 08 03:20 38.0613489712 -54545.983 30.1943 37.9714 10.765 65.764 2013 JAN 08 03:30 38.0652588908 -57014.467 32.7183 37.8669 10.747 63.770 2013 JAN 08 03:40 38.0693412836 -59467.015 35.2422 37.7623 10.730 61.775 2013 JAN 08 03:50 38.0735949849 -61902.274 37.7660 37.6578 10.713 59.780 2013 JAN 08 04:00 38.0780187365 -64318.918 40.2897 37.5532 10.697 57.786 2013 JAN 08 04:10 38.0826111949 -66715.655 42.8133 37.4486 10.680 55.794 2013 JAN 08 04:20 38.0873709071 -69091.228 45.3367 37.3439 10.663 53.804 2013 JAN 08 04:30 38.0922963536 -71444.419 47.8599 37.2393 10.647 51.816 2013 JAN 08 04:40 38.0973859310 -73774.048 50.3830 37.1346 10.631 49.833 2013 JAN 08 04:50 38.1026379342 -76078.980 52.9060 37.0299 10.614 47.853 2013 JAN 08 05:00 38.1080506071 -78358.123 55.4289 36.9252 10.598 45.879 2013 JAN 08 05:10 38.1136220923 -80610.434 57.9515 36.8205 10.583 43.910 2013 JAN 08 05:20 38.1193504804 -82834.920 60.4740 36.7158 10.567 41.948 2013 JAN 08 05:30 38.1252337947 -85030.636 62.9964 36.6111 10.551 39.992 2013 JAN 08 05:40 38.1312699741 -87196.695 65.5186 36.5064 10.536 38.044 2013 JAN 08 05:50 38.1374569168 -89332.262 68.0407 36.4017 10.521 36.104 2013 JAN 08 06:00 38.1437924584 -91436.560 70.5626 36.2971 10.506 34.173 2013 JAN 08 06:10 38.1502743751 -93508.872 73.0843 36.1924 10.491 32.251 2013 JAN 08 06:20 38.1569004150 -95548.540 75.6058 36.0877 10.476 30.340 2013 JAN 08 06:30 38.1636682555 -97554.968 78.1272 35.9831 10.462 28.440 2013 JAN 08 06:40 38.1705755545 -99527.622 80.6485 35.8785 10.447 26.551 2013 JAN 08 06:50 38.1776199280 -101466.033 83.1695 35.7739 10.433 24.676 2013 JAN 08 07:00 38.1847989549 -103369.797 85.6904 35.6694 10.419 22.814 2013 JAN 08 07:10 38.1921102013 -105238.576 88.2112 35.5649 10.405 20.967

2002 AY1 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 183-601 | 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/2002AY1/2002AY1_planning.html

Asteroid Radar Astronomy
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