AO19 phased array feed

apr 2013


Topics

Pre installation:

Sources
ip addresses
arduino cal ctrl
Equipment,receiver weights
byu documentation
What we did:

results

Sources:

byu19 jun/aug 2010


Places to look on disc:



Pre installation:

     

Sources:  (top)

    Strong lband calibration sources available:

Source
Cat
Flux Jy
*-->1665
 Notes
point src calibrators
J0108+133
N
10.31*
maj,min :18.1,<16.2 . flux@1665. chris say 4' size?
J0137+331 (3C48)
C
13.67*
This transits @noon around 19apr10. freq @ 1665
J0318+164 (CTA21)
C 7.17*
flux @1665
J0437+296(3C123) N 54.9 maj,min 27.7,<18
J0502+252 N 5.7
maj,min  , 15.4,<18.5
J0521+166 (3C138)
C 8.27*
8% polarized @1600MHz
J1229+020 (3C273) N
54
maj,min 21.5,<15.9
J1331+305 (3C286)
C 13.32*
9% polarized @1600MHz.
J1330+251 (3C287)
N 6.26*
maj,min  < 16.0 < 15.55
J1347+122 N 5.02*
maj,min <18.2 < 17.1
J2014+23 (3C409) N
11.23*
maj,min 21,<14.8 (at 1665Mhz via chris salter).
J2123+250 (3C433)
N
10.27
maj,min 19,<13.9 (chris says 2')
J2232+117
N
7.2
maj,min <19,<17
J2253+161 (3C454.3) C 13.34* This is a variable. Strength probably different.
extended sources
J0534+22(crab)
N
324
maj,min 127,127
053428.03 +2202 02.5
M87 (.25 deg) image
M87 (.25 deg) contour map: (.ps) (.pdf)
123049.46 122321.6
N 138
maj,min 48.4 18.7
J1648+0504 (3C348) Hercules A

47
at least a double...
16 51 11.70 +04 59 19.0 23Jy
16 51 3.85 +04 59 41.9 11.1 Jy
16 51 4.94 +04 59 42.3 8.5 Jy
192342.51 143031.1
 (W51 image .5 deg square)
W51 contour map (.ps) (.pdf)
N 36.8
maj,min 83.9,63.7
B2018+295 (3C410)
C 8.65
size:41 arc secs
B2121+248 (3C433)
C 10.63
size 120 arc secs




J1538+147 (.ps) (.pdf) contour map
N
.012
12 mJy (peak) nvss source . 40 sec integrations.

Source ra,dec, flux and AST rise times  (top)


  processing:x101/ao19/sources/srcsched.pro


Ip addresses

The ip addresses, gateways to use:



arduino cal ctrl

    There is a cal multiplexor in the Cornell rack on the rotary floor. It selects which dipole will receiver the cal rf signal (from the noise diode)



byu documentation




History of what we did: (top)


20jun13 weight on rotary floor  (top)

    The weights on the turret floor for the jul13 experiment are:

equipment
weight (lbs)
notes
dewar
400
495 with mount - 95 lbs of mount
weighted in xmter room.
dewar mount
40
guess by steve
Cornell rack
450lbs
weighed in transmitter room.(450)
includes most cables/
byu rack
195 lb
weighed in xmter room
no cables
total
1085bs


rcv
weight (lbs)
notes
sbh
150
denis weighed it in lab
cbh
250

800
85
just used value from old 610 system
probably light since we have refrig
sbw
244

cb
254

total
983

    So we will be adding 102 lbs extra to the floor.


Other:

   

results


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