1999JM8.208.log

H = 15 ==> diameter = 3.1 km; assume period = 12 days (!), equatorial view, radar albedo
= 0.1.  Assume optimal parameters for Goldstone and Tsys = 31 K, sensitivity = 7.3 K/Jy
for Arecibo.  Tracks in bold are those scheduled for observations, where the times
shown and SNR/date correspond to the actual tracks.

                           ------------GOLDSTONE----------  -------------ARECIBO-----------
                                            Max                              Max
                                    Dat     Run    UTC               Dat     Run    UTC
    Date   RA  Decl Delta  Runs     SNR     SNR   Window    Runs     SNR     SNR   Window
1999  7 18 190  58  0.105   190    1400     100 19:55-07:15    0       0       0      -
1999  7 20 183  61  0.094    23     720     160 02:30-03:40    0       0       0      -
1999  7 21 178  62  0.088    22     860     180 17:40-18:45    0       0       0      -
1999  7 23 164  65  0.078    27    1600     290 00:30-01:40    0       0       0      -
1999  7 24 154  65  0.073    82    3300     350 16:55-20:15    0       0       0      -
1999  7 27 119  62  0.062    41    4100     640 01:30-02:55    0       0       0      -
1999  7 28 108  59  0.059    56    5500     730 17:10-19:00    0       0       0      -
1999  7 31  86  43  0.057    92    8100     850 17:00-19:55    0       0       0      -
1999  8  1  80  37  0.058   132    9400     810 11:45-16:00   53   47000    6400 12:17-14:00
1999  8  2  76  32  0.060   327   12000     720 10:30-21:53   72   71000    8400 11:35-14:00
1999  8  3  73  26  0.062   302   10000     620 10:24-21:23   82   66000    7200 11:09-13:59
1999  8  4  71  21  0.066   277    7900     520 10:24-20:53   65   48000    6000 11:00-13:44
1999  8  5  68  16  0.069   254    6200     420 10:24-20:30   65   41000    5000 11:00-13:29

Goldstone Track Assignments

                        UTC              PDT
UTC        UTC    TRANSMIT WINDOW  TRANSMIT WINDOW
1999      1999       START STOP               START STOP
DOY       Date       hhmm-hhmm                hhmm-hhmm     DURATION

199       Jul 18     1955-0715    Sun Jul 18  1255-0015      11:20
201       Jul 20     0230-0340    Mon Jul 19  1930-2040       1:10
202       Jul 21     1740-1845    Wed Jul 21  1040-1145       1:05
204       Jul 23     0030-0140    Thu Jul 22  1730-1840       1:10
205       Jul 24     1655-2015    Sat Jul 24  0955-1315       3:20
208       Jul 27     0130-0255    Mon Jul 26  1830-1955       1:25
209       Jul 28     1710-1900    Wed Jul 28  1010-1200       1:50 **
212       Jul 31     1700-1955    Sat Jul 31  1000-1255       2:55 **
213       Aug  1     1145-1600    Sun Aug  1  0445-0900       4:05 ** 

** = Tracks that have DSS-13 support

Total duration: 28:20

Arecibo Track Assignments


                        UTC              PDT              AST
UTC        UTC    TRANSMIT WINDOW  TRANSMIT WINDOW  TRANSMIT WINDOW
1999      1999       START STOP       START STOP       START STOP
DOY       Date       hhmm-hhmm        hhmm-hhmm        hhmm-hhmm      Duration

213       Aug 1      1217-1400        0517-0700        0817-1000        1:43
214       Aug 2      1135-1400        0435-0700        0735-1000        2:25
215       Aug 3      1109-1359        0409-0659        0709-0959        2:50
216       Aug 4      1100-1344        0400-0634        0700-0944        2:44
217       Aug 5      1100-1329        0400-0629        0700-0929        2:29

During the track on DOY 208 (!), the strategy will be to get a
CW detection and then we'll devote the rest of the track to
0.25 us x 0.05 Hz imaging.  

CW setup for the sixth track:

TX polarization           RCP
RCV polarization          LCP
Frequencies:              2
Dwell:                    30 seconds
Bandwidth:                1000 Hz
Sampling interval:        10000 x 0.1 usec
VMT FFT for PSD files:    4096 for 0.244-Hz resolution


Possible ranging setups:
---------------------------------------------------------------------------
127 x 64 10-usec single sample

baud            10 usec
code            127
gates           127
FFT             64
CLT             11
ncoh            2
bandwidth       394 Hz   
resolution      6.15 Hz
TXOFF           TBD
incoh sums      64 => 10.4 sec/record
---------------------------------------------------------------------------
127 x 64 11-usec single sample.

baud            11 usec
code            127
gates           127
PRP             1397
FFT             64
CLT             11
ncoh            2
bandwidth       357.9 Hz   
resolution      5.59 Hz
TXOFF           TBD
-------------------------------------------------------------------------
0.125-usec ranging

setup           JX1XS001  
baud            0.125 usec
code            127
gates           127
FFT             64
ncoh            1968
bandwidth       32.008 Hz     
resolution      0.5001 Hz
TXOFF           6 Hz = 12 cells, => cell 44
incoh sums      4 looks=> 8 sec/record => expect records per run ~ RTT/8
CLT gate        34.8

_____________________________________________________________________
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 
_______________________________________________________________________

Ray Jurgens and Carl Franck have added 3 new configurations that
provide range over-sampling.  The original long baud configurations
are set up as follows:

Config.    baud   over  range   FFT     coh     BW      Res
           micro  samp  gates   freqs   sums    Hz      Hz
           sec

JX1XS0700   7.0     1   127     64      3       375     5.86
JX1XS1000  10.0     1   127     64      2       394     6.15
JX1XS1100  11.0     1   127     64      2       358     5.59

We added the following to the JX set:

JX1XS0350   7.0     2   254     64      3       375     5.86
JX1XS0500  10.0     2   254     64      2       394     6.15
JX1XS0550  11.0     2   254     64      2       358     5.59

These new configurations have exactly the same coverage in range
and Doppler frequency as the previus set.  They provide 2 range samples
per baud filling in the deep hole between gates in the original set.  The
only disadvantages in using these are that they record more data in a 
given amount of time for the same amount of integration, and the display
is crowded if you try to show all gates at one time.  

SNR tests using the these are essentially identical to the originals.

____________________________________________________________________
RANGING SETUPS from Toutatis 1992: (code=255, FFT=256, 1 channel)
____________________________________________________________________
Setup     Baud   NACC       bandwidth  resolution   1/res'n   CLT
                               Hz         Hz          sec     gate
____________________________________________________________________

TU1XS01   0.125    123      255.06      0.9963        1.00    34
                   890       35.25      0.1377        7.26
                  1471       21.327     0.08331      12.00
                  2210       14.196     0.05545      18.03
                  2942       10.664     0.04166      24.01
                  3309        9.4810    0.03704      27.00
                  3700        8.4791    0.03312      30.19
                  7400        4.2395    0.01656      60.38
                 14800        2.1198    0.00828     120.77
                     
TU1XS02   0.25     123      127.5       0.498    
TU1XS04   0.500    307       25.5       0.100      
TU1XS08   1.000    153       25.6       0.100      
TU1XS16   2.000      4      490.2       1.915     
TU1XS32   4.000      2      490.2       1.915      
TU1XS33   4.125      2      475.3       1.857      
TU1XS80  10.000      1      392.2       1.532                 11      
TU1XS88  11.000      1      356.5       1.393                 11 


Instructions
NOTE: Data should be moved to the appropriate subdirectories in
      intruder:/d1/1999JM8/raw/

1999 JM8 POINTING: 


For these observations, we need the following files:

            PRDX.OUT.s21
           PUNCH.OUT.s21

These files are created in:  intruder:/export/data2/osod/ops/1999jm8/

and are copied to:           intruder:/d1/1999JM8/support/

POINTING  

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

1999 07 27   208  010000 118.9043 62.1455    A                        61.6  21
1999 07 27   208  020000 118.4271 62.0178    A      0.0081  -0.0022   61.5  21
1999 07 27   208  030000 117.9569 61.8883    A                        61.3  21

PRDX.OUT.s21
RECEIVER    U.T.         RANGE         DOPPLER      LHA      DEC      AZ      EL 
 1999 JUL 27 01:30     61.5117743587   264385.219  91.2416  62.0819 327.184  30.260  
 1999 JUL 27 01:40     61.4932596358   263905.006  93.8279  62.0606 327.648  29.117  
 1999 JUL 27 01:50     61.4747778424   263445.628  96.4140  62.0392 328.153  27.989  
 1999 JUL 27 02:00     61.4563275188   263007.057  98.9999  62.0178 328.698  26.877  
 1999 JUL 27 02:10     61.4379072089   262589.220 101.5856  61.9963 329.282  25.782  
 1999 JUL 27 02:20     61.4195154631   262192.000 104.1711  61.9748 329.903  24.705  
 1999 JUL 27 02:30     61.4011508425   261815.240 106.7564  61.9532 330.561  23.648  
 1999 JUL 27 02:40     61.3828119179   261458.738 109.3415  61.9316 331.253  22.612  
 1999 JUL 27 02:50     61.3644972795   261122.251 111.9264  61.9100 331.980  21.598  
 1999 JUL 27 03:00     61.3462055333   260805.492 114.5111  61.8883 332.739  20.608  


================================================================================

BEGIN ELECTRONIC LOG

Present: Benner, Jurgens, Rose, Franck, Kelley, Ostro remote at ACM in Ithaca

Using Solution 21: it was nearly dead-on during the last track so I didn't 
update it.


0043: Randy can't get the AC software to load... We've tried to call Joseph
but we haven't reached him yet.  If ac doesn't load we'll run manually with 
the LMC.

0115: Randy got the AC loaded.  We're ready to go.

TX Power = 440 kW for CW

 TX  polarization             RCP
 RCV polarization             1=RCP=OC=15.36 K at zenith
                              2=LCP=SC=16.53 K at zenith

Ch 1 Tsys =  yyyyy on point (xxxx deg el)
Ch 2      =  yyyyy

Starting CW setup:
TX  polarization              RCP
 RCV polarization             both
 Frequencies:                 2
 Dwell:                       30 seconds
 Bandwidth:                   1000 Hz
 Sampling interval:           10000 x 0.1 usec
 VME FFT for PSD files:       4096 for 0.244-Hz resolution

This will push things a bit because the RTT is about 62 sec.  The
echo is so strong that it won't matter.  

cw loopback OK

013011: beam is up

Echo is about 3 Hz wide, wider than on previous days.  
Doppler offset is 0.2-0.3 Hz, about the same as the previous track.




For the 0.25 us setup, we need to remember that the echo has drifted
down due to the +0.2 Hz Doppler offset we saw during the last track.
That means that the total delay drift relative to the ephemeris should
be about 5 usec or about 20 gates.  If we put in a +100 gate txoffset,
that wouldn't put us up far enough to avoid splitting the image in the
real-time display.  ==> Use txoff = 150 gates.  Recall that the echo
will be about 90 gates deep


Configure for 0.25 us x 0.05 Hz
===============================
setup             
baud            0.25 usec
code            255
gates           255
FFT             256
ncoh            1230
bandwidth       12.753 Hz     
resolution      0.04982 Hz
TXOFF           +2.5 Hz, +150 gates (37.5 us) =  +50 Doppler cells  
incoh sums      xxx looks=> xxx sec/record 
CLT gate        22

loopback: ok
coldsky: ok

014843: beam is up

LE of echo is at gate 32.  Echo is stronger on the negative edge--asymmetric
again.  

Problem with the Mac display: keeps clearing after each sum, so the display
doesn't accumulate.  This setup is pushing as far in Doppler as I'm
willing to go.  

0204: Carl fixed the display problem.  Seeing more structure in the 
image--not just the strong return along the negative edge.  

0219: there's a protruberance reminiscent of the pointy feature we saw on 
the first day except that it's more obvious in today's image.

0230: going smoothly, almost *too* smoothly.  Ray has a grad student here--
they stepped out to look at another antennas.  Actually, it probably wasn't 
wise of me to let him go--if we have problems we could be in trouble for the remaining 
23 minutes of the track.  They wanted to see 24 before the Sun sets.

0255: end of track.  We completed 30 ranging cycles.  This was the easiest
track yet.

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

ASTROMETRY
==========
0459: The CW echo is very close to 3 Hz wide and centered on +0.5 Hz.  
We obtained the CW echoes at about 01:30

 1999 JUL 27 01:30     61.5117743587   264385.219 
                                           +0.5 +/-0.3 Hz
                                       --------
                                       264385.7 +/-0.3 Hz

  1999 07 27 01:30:00    P  264385.7D0  0.3    8560.D6  -14  -14 Benner, L.
  Corr'n of +0.5 Hz to soln 21 from center freq of cw echo w/0.24 Hz res'n

It's getting late so I'll do the range and update the orbit tomorrow when I'm more alert.

...Resuming on 1999 July 28 05:18 UTC...

DOY 205
-------
We did 10 us, 11 us, and 0.5 us ranging on DOY 205.  The CLT for the 10 and 11 us 
setups was gate 11.  The echo LE for both bauds is in gate 9 and the TE is in 
gate 11.  Given that we've seen a delay extent of about 20 us in the high-res
images, the ephemeris is good.  That's why I didn't update soln 21 on DOY 205.

The 0.5 us images on DOY 205 were offset in range by +50 gates (+25 us) so they
wouldn't split on gate 1.  From a weighted sum of all the images, the LE is in
gate 14 and the TE near gate 59, using the 2-sigma levels as an estimator.  
Thus the true LE was in gate -36 and the true TE was in gate 9.  The CLT 
was in gate 17, so our COM corrn (assuming COM = TE) is -8 gates or -4 us.
For that estimate I adopt 1-sigma uncertainties of 5 us, which is about 25%
of the visible delay extent in most of the images.  One caveat is that the
delay extent on DOY 205 is the largest we've seen thus far--3.65 km.  

Epoch: 1999 July 24 19:00:00

 1999 JUL 24 19:00     69.4267960044
                       -0.000004 +/- 5 us
                       ----------
                       69.426792 +/- 5 us

RANGE
  1937 12 02 19:50:00    R 42.590780605 10.000 8510.D6  -14      Reber,G.
  yyyy mm dd HH:MM:SS type obsrvbl(sec) weight frq(Hz) xstn rstn observer...

Report:
  1999 07 24 19:00:00    R 69.426792     5.0   8560.D6  -14      Benner, L.
  Corrn of -4 us to soln 21 w/0.5 us baud.  Assume COM = TE +/- 5 us.


DOY 208
-------
We used solution 21 again.  The Doppler correction on DOY 205 was about +0.5 Hz,
so in roughly 54 hours between the tracks on DOY 205 and 208 I expected the echo
to drift -(0.42 us/h*Hz)(0.5 Hz)(54 h) = -11 us.  Consequently, I chose a
tx range offset of +150 gates to put the entire echo above gate 1 to avoid 
splitting it.  The LE is in gate 20 and the TE is near gate 92 (using the 2-sigma
levels).  Removing the offset, the LE was in gate -130 and the TE was in gate -58.
So the echo was drifting down (i.e. toward Earth) as expected.  The CLT was in
gate 22 giving a total displacement of 22-(-58) = 80 gates.  If we assume that
the COM = TE +/- an uncertainty, then the COM is at -80 gates or -20 us.  That's 
more than I expected given the Doppler uncertainties but it's in the ballpark.
Again adopt 5 us as an uncertainty--that puts the ephermeris well within the 
target.  

Epoch: 1999 July 27 02:30:00

 1999 JUL 27 02:30     61.4011508425
                       -0.000020 +/- 5 us
                       ---------
                       61.40113 +/- 5 us

RANGE
  1937 12 02 19:50:00    R 42.590780605 10.000 8510.D6  -14      Reber,G.
  yyyy mm dd HH:MM:SS type obsrvbl(sec) weight frq(Hz) xstn rstn observer...

  1999 07 27 02:30:00    R 61.40113      5.0   8560.D6  -14      Benner, L.
  Corr'n of -20 us to soln 21 w/0.25 us baud.  Assume COM = TE +/- 5 us.

UPDATE THE ORBIT
================
osod

I added all four...

cmod 21

dis cmod o

^L                 Observations, Residuals and Residual Differences  -  Pass 2
                      Observation        Obs    J2000 Residuals      Sigmas    Res. Differences
     Date(UTC)       R.A.      Dec.      Code   R.A.cosD    Dec.    R.A. Dec  Predicted-2nd Pass
*** WARNING: CAPRCH never entered triple mode
*** WARNING: CAPRCH never entered triple mode
AR1999 727.104167  23000      61.40113   -14      -2.52  Delay      5.000         0.00
*** WARNING: TPM data predicted
AP1999 727.062500  13000    264385.7D0   -14      -0.12  Doppler    0.300         0.00
*** WARNING: TPM data predicted
AR1999 724.791667 190000     69.426792   -14       3.18  Delay      5.000         0.00
*** WARNING: TPM data predicted
AP1999 724.708333 170000    420950.7D0   -14       0.15  Doppler    0.300         0.00
*** WARNING: TPM data predicted
AP1999 721.736111 174000    528308.3D0   -14       0.35  Doppler    0.400         0.00
*** WARNING: TPM data predicted
AR1999 720.125000  30000    92.6270694   -14      -4.12  Delay     10.000         0.00
*** WARNING: TPM data predicted
AP1999 720.111111  24000    547278.4D0   -14       0.04  Doppler    0.300         0.00
*** WARNING: TPM data predicted
AP1999 718.895833 213000    580912.4D0   -14       0.05  Doppler    0.400         0.00


 ----- Radar Residuals -----     Delay   Doppler   Radar+Optical
 Maximum Residual Difference     0.000     0.000
 Normalized RMS                  0.526     0.490        0.644
 No. Delay, Doppler Obs.:   3,  5

osod > stat

Pass 1 Weighted Residual Statistics "res1":
 
    Type     # pts           Mean           Std dev.           RMS
    ----     -----       ------------     ------------     ------------
1.  opt RA     220        0.60023E-01      0.45684E+00      0.45973E+00
2.  opt DEC    220       -0.88355E-01      0.67488E+00      0.67911E+00
3.  dly          3       -0.86063E+01      0.10703E+02      0.12265E+02
4.  dop          5        0.34480E+00      0.21203E+00      0.39351E+00
 

Pass 2 Weighted Residual Statistics "res2":
 
    Type     # pts           Mean           Std dev.           RMS
    ----     -----       ------------     ------------     ------------
1.  opt RA     220        0.67982E-01      0.45801E+00      0.46200E+00
2.  opt DEC    220       -0.74682E-01      0.67316E+00      0.67577E+00
3.  dly          3       -0.11520E+01      0.38380E+01      0.33387E+01
4.  dop          5        0.92600E-01      0.17255E+00      0.17998E+00

iter 21

iter 22

eph 23

pred

x




================================================================================

MASTERLOG
=========
                                                          rcsta  rcend
file        setup    Bandwidth  osod  TXoff       Runs  HHMMSS-HHMMSS  Comments
------------------------------------------------------------------------------------
99208        CW        1000      21                 2   013115-013422
jm20803 0.25usx0.05Hz    12.75   21 2.5Hz,37.5us   30   014947-025407


PROBLEMS
========
1. hi-res ranging setup didn't integrate more than one look at first.
   Carl fixed it.
2. Randy had trouble loading the AC software.  Ultimately he succeeded.


Things to do before leaving
===========================
0. update the orbit                                     ==>
1. transfer ranging data -> intruder then ftp to JPL 	==> DONE
2. transfer cw data      -> intruder then ftp to JPL	==> DONE
3. transfer tx/rcv logs to intruder and then to JPL	==> DONE
4. write protect all data and log files	at JPL		==> DONE
5. update website on reason				==> DONE 
6. set up log file for the next track			==> 
7. critique 						==> DONE
8. get the data package					==> DONE
9. back up the data ->  exabyte tape & write protect it	==> DONE
10.organize hardcopies  				==> DONE
11.ftp observational log -> JPL and write protect it	==> DONE
12.e-mail brief summary of results -> co-authors        ==> sent to Steve and Scott
13.e-mail brief summary -> Ralph & Larry                ==> 
14.reduce the images on intruder and ftp --> JPL        ==> DONE
15.update the masterlog & ftp it --> JPL                ==> DONE

Draft critique
==============
Excellent track!  Images are outstanding; asteroid has a very
strange shape.  Everything went very smoothly.