(163364) 2002 OD20 Goldstone Radar Observations Planning


Background


2002 OD20 was discovered by the NEAT Survey (Palomar Mountain) on July 21, 2002.  
Its physical characteristics are unknown except for its absolute magnitude of 18.8, 
which suggests a diameter within a factor of two of ~540 meters. 

2002 OD20 will approach within 0.0388 AU (15.1 lunar distances) on May 23, its closest approach 
to Earth in this century.
  
2002 OD20 should be a moderately strong radar target at Goldstone and we have two tracks planned on May 18 and 20. 
Two tracks are scheduled at Arecibo on May 3 and 4 as the object is inbound, so we are likely to learn more
about it prior to the first track at Goldstone.  It will be too far south for Arecibo
to observe during the closest approach.

Update on May 3: Efforts to observe this object at Arecibo on May 3 were unsuccessful, suggesting that the
asteroid is smaller and/or less reflective than expected.  Arecibo observations on May 4 have been cancelled.

2002 OD20 will be a good optical target in early June when the asteroid will reach 14th magnitude and
when the Moon is gone. 

2002 OD20  has been classified as a "Potentially Hazardous Asteroid" (PHA) by the IAU's Minor Planet Center.
Orbital and Physical Characteristics  
 orbit type               Apollo
 semimajor axis           1.364 AU
 eccentricity             0.369
 inclination              4.2 deg
 perihelion distance      0.369 AU
 aphelion distance        1.867 AU
 absolute magnitude (H)   18.8
 diameter                 540 m (+- a factor of two)
 rotation period         ~3 h         (J. Pollock, pers. comm.)
                          2.455 h     (Leura Observatory, pers. comm.)
 pole direction           unknown
 lightcurve amplitude     ~0.3 mag    (J. Pollock, pers. comm.)
 spectral class           unknown

Last update: 2013 June 17

Discovery MPEC


M.P.E.C. 2002-O43                                Issued 2002 July 29, 18:45 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 OD20
 
Observations:
     K02O20D* C2002 07 21.44193 22 13 15.89 -02 37 50.9          20.2        644
     K02O20D  C2002 07 21.45238 22 13 14.89 -02 37 53.0          20.4        644
     K02O20D  C2002 07 21.46271 22 13 13.90 -02 37 55.2          20.3        644
     K02O20D 1C2002 07 22.39378 22 11 48.14 -02 41 16.6                      658
     K02O20D 1C2002 07 22.39550 22 11 48.01 -02 41 17.5                      658
     K02O20D 1C2002 07 22.39751 22 11 47.75 -02 41 17.7                      658
     K02O20D 1C2002 07 22.39976 22 11 47.55 -02 41 18.5                      658
     K02O20D 1C2002 07 22.40148 22 11 47.36 -02 41 18.6                      658
     K02O20D  C2002 07 22.44632 22 11 42.93 -02 41 26.2          20.0        644
     K02O20D  C2002 07 22.45670 22 11 41.92 -02 41 28.4          20.0        644
     K02O20D  C2002 07 22.46718 22 11 40.86 -02 41 30.8          20.3        644
     K02O20D 1C2002 07 29.67749 21 59 23.95 -03 16 53.2                      413
     K02O20D 1C2002 07 29.67908 21 59 23.81 -03 16 53.9                      413
     K02O20D 1C2002 07 29.68067 21 59 23.62 -03 16 54.7                      413
 
Observer details:
413 Siding Spring.  Observers G. J. Garradd, R. H. McNaught.  Measurer R. H. 
    McNaught.  1.0-m f/8 reflector + CCD.
644 Palomar Mountain/NEAT.  Observers E. F. Helin, S. Pravdo, K. Lawrence,
    K. Kuluhiwa, M. Hicks, R. Thicksten.  1.2-m Schmidt + CCD.
658 National Research Council of Canada.  Observer G. B. Poole.  Measurer 
    J. Clem.  1.82-m Plaskett reflector + CCD.
 
Orbital elements:
2002 OD20                                                            PHA 0.030
Epoch 2002 July 25.0 TT = JDT 2452480.5                 MPC
M 105.42668              (2000.0)            P               Q
n   0.61953053     Peri.  274.13752     -0.99274231     -0.09615522
a   1.3627857      Node   260.35567     +0.11669989     -0.91532055
e   0.3715295      Incl.    4.20145     -0.02904904     -0.39107860
P   1.59           H   18.1           G   0.15
>From 14 observations 2002 July 21-29.

Ephemeris:
2002 OD20                a,e,i = 1.36, 0.37, 4                   q = 0.8565
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2002 07 15    22 22.08   -02 23.1    0.709    1.601   135.4    26.5    19.6
2002 07 25    22 07.59   -02 52.0    0.688    1.640   148.1    19.1    19.3
2002 08 04    21 49.35   -03 53.2    0.684    1.677   161.2    11.3    19.1
2002 08 14    21 29.78   -05 17.4    0.702    1.710   170.8     5.5    18.9
2002 08 24    21 11.86   -06 49.5    0.744    1.740   164.8     8.8    19.3
2002 09 03    20 57.84   -08 15.6    0.808    1.767   152.9    15.1    19.7
2002 09 13    20 48.87   -09 27.0    0.892    1.791   141.3    20.6    20.1
2002 09 23    20 45.03   -10 19.8    0.990    1.812   130.7    24.8    20.5
2002 10 03    20 45.75   -10 53.6    1.100    1.829   121.1    27.9    20.9
2002 10 13    20 50.33   -11 09.4    1.217    1.843   112.3    30.1    21.2
2002 10 23    20 58.02   -11 08.4    1.339    1.855   104.3    31.3    21.4
2002 11 02    21 08.16   -10 52.1    1.463    1.863    96.8    31.9    21.6
2002 11 12    21 20.27   -10 21.4    1.587    1.867    89.8    32.0    21.8
2002 11 22    21 33.92   -09 37.5    1.708    1.869    83.2    31.7    22.0

Timothy B. Spahr             (C) Copyright 2002 MPC           M.P.E.C. 2002-O43


SNR Calculation

2002OD20:  
D = 0.54 km,     (a conservative lower bound)
P = 2.0 h,       (We assumed a rapid rotation period in order to place a lower bound on the SNRs)
OC albedo = 0.1
                                                                    SNR/      SNR/
w  DOY  start date    window        RA, dec   dist    runs          day       run
20 135  May 15        19:39-02:59    107, -12  0.059     243         57         4
20 136  May 16        19:58-03:00    111, -14  0.055     253         74         5
20 137  May 17        20:22-03:01    115, -17  0.051     260         95         7
20 138  May 18        20:52-03:03    120, -19  0.047     264        120         8
20 139  May 19        21:30-03:05    126, -23  0.044     262        150        10
21 140  May 20        22:16-03:08    133, -26  0.042     252        170        12
21 141  May 21        23:13-03:10    141, -29  0.040     234        180        13
21 142  May 23        00:21-03:11    151, -32  0.039     208        170        13
21 143  May 24        01:41-03:06    161, -34  0.039     179        150        12
...object too far south for Goldstone from May 25-27...
22 148  May 28        03:59-05:18    198, -34  0.047     148         71         6
22 149  May 29        03:53-06:08    205, -33  0.051     151         57         5
22 150  May 30        03:50-06:47    210, -32  0.055     151         44         4
22 151  May 31        03:48-07:17    215, -30  0.060     150         35         3
22 152  Jun  1        03:47-07:41    219, -29  0.064     147         27         2
22 153  Jun  2        03:45-08:00    222, -28  0.069     144         21         2

Goldstone SNRs assume Ptx = 440 kW 


Arecibo SNRs  : Tsys = 23 K,  P = 800 kW,  elev >= 70.31 deg 
                                                  #         SNR/      SNR/
 start date    window        RA, dec   dist     runs        day       run
2013 Apr 27  18:35-20:31     82,  +5  0.157       22         15         3
2013 Apr 28  18:36-20:28     83,  +4  0.151       22         17         4
2013 Apr 29  18:37-20:25     84,  +4  0.145       22         19         5
2013 Apr 30  18:38-20:22     84,  +3  0.140       22         22         5
2013 May  1  18:39-20:18     85,  +3  0.134       22         24         6
2013 May  2  18:41-20:15     86,  +2  0.128       21         27         6
2013 May  3  18:44-20:11     87,  +2  0.122       21         30         7
2013 May  4  18:48-20:06     88,  +1  0.117       20         33         8
2013 May  5  18:53-20:01     89,  +1  0.111       18         36         9
2013 May  6  19:00-19:54     90,   0  0.105       15         37        10
2013 May  7  19:13-19:43     91,  -1  0.100        9         32        11

Track Assignments


 DAY START BOT  EOT  END FACILITY USER   ACTIVITY      
 139 2035 2205 0125 0155  DSS-14  GSSR   AST 2002 OD20 
 141 2340 0110 0355 0425  DSS-14  GSSR   AST 2002 OD20 
        
Goldstone tracks:

         UT         UT            PDT                 AST                 Duration   Round-trip     
 DOY     Date       TX Window     TX Window           TX window           hh:mm      time (sec)   SNR/Run 
 ---     ----       ---------     ---------           ---------           ---------  ---------    -------
139-140  May 19-20  2140-0125     1440-1825 May 19    1740-2125 May 19     3:45        47            8  overlap with 2013 HT15 2140-0125 UT
142      May 22     0010-0355	  1710-2055 May 21    2010-2355 May 21     3:45        41           12  overlap with 2013 HT15 0010-0258 UT

NOTE: TXON in the table above corresponds to when transmit authorization starts.

We expect that 2013 HT15 will be a weak target but we intend to try it for a while just in 
case the SNRs are stronger than expected.

2002 OD20 also overlaps the view period for 2013 JM22 on May 19 for the entire track.



Arecibo tracks:

         UT         UT            PST                AST                 Duration   Round-trip     
 DOY     Date       TX Window     TX Window          TX window           hh:mm      time (sec)   SNR/Run 
 ---     ----       ---------     ---------          ---------           ---------  ---------    -------
 123     May 03     1844-2011     1144-1311 May 03   1444-1611 May 03    01:27        122           7    No echoes
 124     May 04     1848-2006	  1148-1306 May 04   1448-1606 May 04    01:18        117           8    Cancelled


Uncertainties

From Horizons, 2013 May 03, Solution 59, # obs: 221 (2001-2013)

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.            delta POS_3sigma  DOP_S_3sig  DOP_X_3sig  RT_delay_3sig
 2013-May-03 00:00 *    86.00448   2.26355 0.12690124807956      2.248        0.29        1.06       0.001536
 2013-May-04 00:00 *    86.86823   1.69662 0.12119574782398      2.365        0.29        1.06       0.001533
 2013-May-05 00:00 *    87.78990   1.08359 0.11554238243673      2.491        0.30        1.07       0.001530
 2013-May-06 00:00 *    88.77945   0.41789 0.10994435570011      2.626        0.30        1.10       0.001528
 2013-May-07 00:00 *    89.84876  -0.30828 0.10440565029768      2.770        0.31        1.14       0.001527
 2013-May-08 00:00 *m   91.01205  -1.10419 0.09893127192691      2.926        0.33        1.20       0.001528
 2013-May-09 00:00 *m   92.28653  -1.98095 0.09352755934822      3.093        0.36        1.30       0.001530
 2013-May-10 00:00 *m   93.69316  -2.95179 0.08820258390711      3.274        0.39        1.43       0.001533
 2013-May-11 00:00 *m   95.25771  -4.03251 0.08296667003712      3.468        0.44        1.60       0.001539
 2013-May-12 00:00 *m   97.01206  -5.24193 0.07783307868091      3.677        0.50        1.82       0.001546
 2013-May-13 00:00 *m   98.99599  -6.60226 0.07281890814736      3.902        0.57        2.07       0.001555
 2013-May-14 00:00 *m  101.25941  -8.13930 0.06794627967102      4.144        0.65        2.36       0.001567
 2013-May-15 00:00 *m  103.86518  -9.88218 0.06324388193766      4.403        0.74        2.67       0.001580
 2013-May-16 00:00 *m  106.89255 -11.86192 0.05874893553701      4.681        0.83        3.00       0.001594
 2013-May-17 00:00 *m  110.44072 -14.10807 0.05450957283597      4.980        0.92        3.34       0.001608
 2013-May-18 00:00 *m  114.63172 -16.64136 0.05058744947980      5.305        1.02        3.69       0.001620
 2013-May-19 00:00 *m  119.60991 -19.46055 0.04706001250068      5.664        1.14        4.15       0.001626
 2013-May-20 00:00 *m  125.53259 -22.52135 0.04402115054758      6.074        1.35        4.89       0.001623
 2013-May-21 00:00 *m  132.54252 -25.70964 0.04157802605390      6.550        1.70        6.19       0.001603
 2013-May-22 00:00 *m  140.71109 -28.82086 0.03984139400845      7.089        2.23        8.12       0.001561

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

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

 Date__(UT)__HR:MN     R.A._(J2000.0)_DEC.  APmag            delta     S-O-T /r  T-O-M/Illu%
 2013-May-01 00:00      84.42243   3.28985   n.a. 0.13849225507769   47.0156 /T  149.4/ 66.6
 2013-May-02 00:00      85.19461   2.79984   n.a. 0.13268969444623   47.0457 /T  137.7/ 55.4
 2013-May-03 00:00      86.00911   2.27404   n.a. 0.12693444007474   47.1375 /T  125.7/ 44.2
 2013-May-04 00:00      86.87311   1.70775   n.a. 0.12122868916262   47.3002 /T  113.9/ 33.5
 2013-May-05 00:00      87.79503   1.09544   n.a. 0.11557506113333   47.5443 /T  102.3/ 23.9
 2013-May-06 00:00      88.78485   0.43054   n.a. 0.10997675810607   47.8822 /T   91.0/ 15.5
 2013-May-07 00:00      89.85442  -0.29473   n.a. 0.10443776055386   48.3284 /T   80.1/  8.8
 2013-May-08 00:00      91.01797  -1.08965   n.a. 0.09896307121887   48.9004 /T   69.7/  4.0
 2013-May-09 00:00      92.29270  -1.96527   n.a. 0.09355902488645   49.6186 /T   59.8/  1.0
 2013-May-10 00:00      93.69956  -2.93481   n.a. 0.08823368752394   50.5080 /T   50.6/  0.0
 2013-May-11 00:00      95.26429  -4.01405   n.a. 0.08299737624733   51.5983 /T   42.3/  0.9
 2013-May-12 00:00      97.01877  -5.22178   n.a. 0.07786334199188   52.9257 /T   35.3/  3.6
 2013-May-13 00:00      99.00273  -6.58015   n.a. 0.07284866932642   54.5340 /T   30.2/  8.0
 2013-May-14 00:00     101.26603  -8.11493   n.a. 0.06797546058462   56.4763 /T   27.6/ 13.9
 2013-May-15 00:00     103.87148  -9.85517  17.41 0.06327237849626   58.8163 /T   27.9/ 21.1
 2013-May-16 00:00     106.89820 -11.83186  17.08 0.05877660827981   61.6294 /T   30.6/ 29.4
 2013-May-17 00:00     110.44524 -14.07450  16.71 0.05453623494405   65.0027 /T   34.7/ 38.5
 2013-May-18 00:00     114.63443 -16.60384  16.33 0.05061285287008   69.0303 /T   39.3/ 48.2
 2013-May-19 00:00     119.60982 -19.41872  15.93 0.04708383471802   73.8043 /T   43.9/ 58.3
 2013-May-20 00:00     125.52839 -22.47510  15.52 0.04404298903236   79.3945 /T   48.1/ 68.3
 2013-May-21 00:00     132.53258 -25.65937  15.13 0.04159741149167   85.8162 /T   51.7/ 77.8
 2013-May-22 00:00     140.69368 -28.76771  14.76 0.03985783679685   92.9899 /T   54.5/ 86.3
 2013-May-23 00:00     149.92644 -31.51724  14.44 0.03892124395788  100.7107 /T   56.9/ 93.2
 2013-May-24 00:00     159.91276 -33.61367  14.19 0.03884915209185  108.6555 /T   59.3/ 97.9
 2013-May-25 00:00     170.11410 -34.86085  14.01 0.03965082428043  116.4441 /T   62.5/ 99.9
 2013-May-26 00:00     179.91909 -35.24034  13.90 0.04128098559314  123.7311 /T   67.0/ 98.9
 2013-May-27 00:00     188.84432 -34.89760  13.85 0.04365345251720  130.2791 /T   73.0/ 95.0
 2013-May-28 00:00     196.64438 -34.05553  13.84 0.04666248230046  135.9779 /T   80.5/ 88.4
 2013-May-29 00:00     203.28971 -32.92862  13.88 0.05020176837924  140.8211 /T   89.2/ 79.7
 2013-May-30 00:00     208.88059 -31.67987  13.95 0.05417607288646  144.8664 /T   98.6/ 69.6
 2013-May-31 00:00     213.56846 -30.41549  14.03 0.05850583746208  148.2003 /T  108.6/ 58.8
 2013-Jun-01 00:00     217.50864 -29.19680  14.13 0.06312732462661  150.9165 /T  118.8/ 47.9
 2013-Jun-02 00:00     220.83944 -28.05488  14.24 0.06799067603268  153.1038 /T  129.2/ 37.4
 2013-Jun-03 00:00     223.67610 -27.00229  14.35 0.07305737411935  154.8414 /T  139.7/ 27.7
 2013-Jun-04 00:00     226.11174 -26.04113  14.47 0.07829782414052  156.1982 /T  150.2/ 19.1
 2013-Jun-05 00:00     228.22052 -25.16791  14.59 0.08368931572222  157.2332 /T  160.5/ 12.0
 2013-Jun-06 00:00     230.06129 -24.37653  14.72 0.08921440256916  157.9971 /T  170.2/  6.4
 2013-Jun-07 00:00     231.68079 -23.65991  14.84 0.09485965241207  158.5327 /T  173.6/  2.5
 2013-Jun-08 00:00     233.11635 -23.01087  14.97 0.10061469651591  158.8769 /T  165.2/  0.4
 2013-Jun-09 00:00     234.39793 -22.42258  15.10 0.10647151123482  159.0608 /T  154.9/  0.2
 2013-Jun-10 00:00     235.54977 -21.88878  15.22 0.11242387546501  159.1107 /T  144.2/  1.7


Setups



We don't know anything about the spin state of 2002 OD20, so 
we will start with a relative coarse Doppler resolution in order to quickly see the echo.

CW setup:
---------------------------------------------------------------------------
TX polarization           RCP
RCV polarization          LCP & RCP
Frequency hops:           2
Dwells:                   20                   
Bandwidth:                4000 Hz 
Sampling interval:        2500 x 0.1 usec 
PFS FFT:             :    1024 for 3.9 Hz res 

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            127
FFT             512
ncoh             128
bandwidth        61.3 Hz   
resolution       0.12 Hz
TXOFF           +8 Hz -> echo would be centered at 256 + 67=323
-------------------------------------------------------------------------------
0.25-usec ranging 
baud            0.25 usec
code            255
FFT             128
ncoh             16
bandwidth       980  Hz     
resolution       7.7 Hz
TXOFF          +80 Hz -> echo would be centered at 64 + 10 = 74
-------------------------------------------------------------------------------
0.125-usec ranging 
baud            0.125 usec
code            255
FFT             128
ncoh             32
bandwidth       980  Hz     
resolution       7.7 Hz
TXOFF          +80 Hz -> echo would be centered at 64 + 10 = 74

_____________________________________________________________________
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/data0/2002OD20/raw/

2002 OD20 POINTING:

  OSOD and predicts are aardvark:

Monostatic with the new waveform generator:
/export/data3/osod/ops/a163364/PRDX.OUT.14v-14-14.s61
                              /PUNCH.OUT.14v-14-14.s61
                              /EPH.OUT.s61

POINTING 
                                                       TX Offsets    
Date (UTC)   DOY  hhmmss    RA        Dec      Macro   LHA     Dec  RTT    OSOD
2013 05 19   139  210000   124.9155  -22.1703    A    -3.20  -1.70   44.3   s61
2013 05 19   139  220000   125.1699  -22.3041    A    -3.10  -1.70   44.2
2013 05 19   139  230000   125.4243  -22.4373    A    -3.10  -1.70   44.0
2013 05 20   140  000000   125.6794  -22.5697    A    -3.20  -1.70   43.9
2013 05 20   140  010000   125.9361  -22.7012    A    -3.20  -1.60   43.8
2013 05 20   140  020000   126.1951  -22.8318    A    -3.10  -1.60   43.7
2013 05 20   140  030000   126.4573  -22.9615    A    -3.20  -1.60   43.6

Transmit offsets are given in millidegrees.  


PRDX.OUT.14f-14-14.s61 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL 2013 MAY 19 21:00 44.2904241444 295091.585 310.8872 -22.1703 124.916 15.975 2013 MAY 19 21:10 44.2697740572 294119.766 313.3516 -22.1926 124.958 17.397 2013 MAY 19 21:20 44.2491930278 293121.144 315.8160 -22.2150 125.000 18.773 2013 MAY 19 21:30 44.2286829029 292096.839 318.2804 -22.2373 125.043 20.098 2013 MAY 19 21:40 44.2082454492 291048.013 320.7449 -22.2596 125.085 21.370 2013 MAY 19 21:50 44.1878823290 289975.876 323.2094 -22.2819 125.128 22.585 2013 MAY 19 22:00 44.1675951395 288881.676 325.6738 -22.3041 125.170 23.741 2013 MAY 19 22:10 44.1473853822 287766.704 328.1383 -22.3264 125.212 24.835 2013 MAY 19 22:20 44.1272544667 286632.287 330.6027 -22.3486 125.255 25.862 2013 MAY 19 22:30 44.1072037011 285479.785 333.0672 -22.3708 125.297 26.820 2013 MAY 19 22:40 44.0872343186 284310.592 335.5316 -22.3930 125.339 27.706 2013 MAY 19 22:50 44.0673474322 283126.131 337.9961 -22.4152 125.382 28.516 2013 MAY 19 23:00 44.0475440613 281927.852 340.4605 -22.4373 125.424 29.246 2013 MAY 19 23:10 44.0278251301 280717.228 342.9249 -22.4595 125.467 29.896 2013 MAY 19 23:20 44.0081914371 279495.754 345.3893 -22.4816 125.509 30.460 2013 MAY 19 23:30 43.9886436971 278264.945 347.8536 -22.5037 125.552 30.938 2013 MAY 19 23:40 43.9691825107 277026.329 350.3179 -22.5257 125.594 31.326 2013 MAY 19 23:50 43.9498083713 275781.448 352.7822 -22.5477 125.637 31.624 2013 MAY 20 00:00 43.9305216706 274531.855 355.2465 -22.5697 125.679 31.830 2013 MAY 20 00:10 43.9113226700 273279.109 357.7107 -22.5917 125.722 31.942 2013 MAY 20 00:20 43.8922115502 272024.773 0.1748 -22.6137 125.765 31.960 2013 MAY 20 00:30 43.8731883604 270770.412 2.6389 -22.6356 125.808 31.885 2013 MAY 20 00:40 43.8542530477 269517.589 5.1030 -22.6575 125.850 31.716 2013 MAY 20 00:50 43.8354054425 268267.862 7.5669 -22.6794 125.893 31.454 2013 MAY 20 01:00 43.8166452876 267022.782 10.0309 -22.7012 125.936 31.101 2013 MAY 20 01:10 43.7979722033 265783.890 12.4947 -22.7231 125.979 30.658 2013 MAY 20 01:20 43.7793856882 264552.712 14.9585 -22.7449 126.022 30.127 2013 MAY 20 01:30 43.7608851554 263330.761 17.4222 -22.7666 126.065 29.511 2013 MAY 20 01:40 43.7424699060 262119.528 19.8859 -22.7884 126.108 28.813 2013 MAY 20 01:50 43.7241391372 260920.484 22.3494 -22.8101 126.152 28.034 2013 MAY 20 02:00 43.7058919508 259735.075 24.8129 -22.8318 126.195 27.179 2013 MAY 20 02:10 43.6877273271 258564.721 27.2763 -22.8535 126.239 26.250 2013 MAY 20 02:20 43.6696441762 257410.811 29.7396 -22.8751 126.282 25.250 2013 MAY 20 02:30 43.6516412839 256274.702 32.2028 -22.8968 126.326 24.183 2013 MAY 20 02:40 43.6337173629 255157.717 34.6659 -22.9184 126.370 23.053 2013 MAY 20 02:50 43.6158710347 254061.141 37.1289 -22.9399 126.413 21.862 2013 MAY 20 03:00 43.5981008108 252986.219 39.5918 -22.9615 126.457 20.613

2002 OD20 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/2002OD20/2002OD20_planning.html

Asteroid Radar Astronomy
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