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public:meetings:glowbi2008:tutorial_monday [2008-11-14 23:53] – fill in James M Anderson | public:meetings:glowbi2008:tutorial_monday [2017-03-08 15:27] (current) – external edit 127.0.0.1 | ||
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This tutorial session is intended to get people familiar with the basic concepts of radio interferometry. | This tutorial session is intended to get people familiar with the basic concepts of radio interferometry. | ||
+ | |||
+ | |||
+ | History: | ||
+ | 2008 Nov ?? Initial version | ||
+ | 2010 NOv 14 Update for 31DEC10 AIPS | ||
====== Step 1 --- Figure Out What to Observe (Reduce) ====== | ====== Step 1 --- Figure Out What to Observe (Reduce) ====== | ||
Line 29: | Line 34: | ||
'' | '' | ||
+ | You should be able to download them from | ||
+ | [[ftp:// | ||
+ | [[ftp:// | ||
+ | |||
+ | While you are there, grab the new set of commands from | ||
+ | [[ftp:// | ||
====== Step 3 --- Start up AIPS ====== | ====== Step 3 --- Start up AIPS ====== | ||
Line 77: | Line 88: | ||
calcode ' '\\ | calcode ' '\\ | ||
clron\\ | clron\\ | ||
+ | outdisk 1\\ | ||
go\\ | go\\ | ||
'' | '' | ||
Line 86: | Line 98: | ||
'' | '' | ||
+ | indisk 1\\ | ||
pcat | pcat | ||
'' | '' | ||
Line 155: | Line 168: | ||
< | < | ||
- | | + | |
File = 19810926 | File = 19810926 | ||
- | Freq = 1.446150006 GHz Ncor = 4 No. vis = | + | Freq = 1.446150006 GHz Ncor = 4 No. vis = |
Scan summary listing | Scan summary listing | ||
Scan Source | Scan Source | ||
- | 1 1148-001 | + | 1 1148-001 |
- | 2 1148-001 | + | 2 1148-001 |
- | 3 SUN : 0000 | + | 3 SUN : 0000 |
- | 4 SUN : 0000 | + | 4 SUN : 0000 |
- | 5 1148-001 | + | 5 1148-001 |
- | 6 SUN : 0000 | + | 6 SUN : 0000 |
- | 7 SUN : 0000 | + | 7 SUN : 0000 |
- | 8 1148-001 | + | 8 1148-001 |
- | 9 SUN : 0000 | + | 9 SUN : 0000 |
- | 10 SUN : 0000 | + | 10 SUN : 0000 |
- | 11 1148-001 | + | 11 1148-001 |
- | 12 SUN : 0000 | + | 12 SUN : 0000 |
- | 13 SUN : 0000 | + | 13 SUN : 0000 |
- | 14 1148-001 | + | 14 1148-001 |
- | 15 SUN : 0000 | + | 15 SUN : 0000 |
- | 16 SUN : 0000 | + | 16 SUN : 0000 |
- | 17 1148-001 | + | 17 1148-001 |
- | 18 SUN : 0000 | + | 18 SUN : 0000 |
- | 19 SUN : 0000 | + | 19 SUN : 0000 |
- | 20 1148-001 | + | 20 1148-001 |
- | 21 SUN : 0000 | + | 21 SUN : 0000 |
- | 22 SUN : 0000 | + | 22 SUN : 0000 |
- | 23 1148-001 | + | 23 1148-001 |
- | 24 SUN : 0000 | + | 24 SUN : 0000 |
- | 25 SUN : 0000 | + | 25 SUN : 0000 |
- | 26 1148-001 | + | 26 1148-001 |
- | 27 SUN : 0000 | + | 27 SUN : 0000 |
- | 28 SUN : 0000 | + | 28 SUN : 0000 |
- | 29 1148-001 | + | 29 1148-001 |
- | 30 SUN : 0000 | + | 30 SUN : 0000 |
- | 31 SUN : 0000 | + | 31 SUN : 0000 |
- | 32 1148-001 | + | 32 1148-001 |
- | 33 SUN : 0000 | + | 33 SUN : 0000 |
- | 34 SUN : 0000 | + | 34 SUN : 0000 |
- | 35 1148-001 | + | 35 1148-001 |
- | 36 SUN : 0000 | + | 36 SUN : 0000 |
- | 37 SUN : 0000 | + | 37 SUN : 0000 |
- | 38 1148-001 | + | 38 1148-001 |
- | 39 SUN : 0000 | + | 39 SUN : 0000 |
- | 40 SUN : 0000 | + | 40 SUN : 0000 |
- | 41 1148-001 | + | 41 1148-001 |
- | 42 SUN : 0000 | + | 42 SUN : 0000 |
- | 43 SUN : 0000 | + | 43 SUN : 0000 |
- | 44 1148-001 | + | 44 1148-001 |
- | 45 SUN : 0000 | + | 45 SUN : 0000 |
- | 46 SUN : 0000 | + | 46 SUN : 0000 |
- | 47 1148-001 | + | 47 1148-001 |
- | 48 SUN : 0000 | + | 48 SUN : 0000 |
- | 49 SUN : 0000 | + | 49 SUN : 0000 |
- | 50 1148-001 | + | 50 1148-001 |
- | 51 SUN : 0000 | + | 51 SUN : 0000 |
- | 52 SUN : 0000 | + | 52 SUN : 0000 |
- | 53 1148-001 | + | 53 1148-001 |
- | 54 SUN : 0000 | + | 54 SUN : 0000 |
- | 55 SUN : 0000 | + | 55 SUN : 0000 |
- | 56 1148-001 | + | 56 1148-001 |
- | 57 SUN : 0000 | + | 57 SUN : 0000 |
- | 58 SUN : 0000 | + | 58 SUN : 0000 |
- | 59 1148-001 | + | 59 1148-001 |
- | 60 SUN : 0000 | + | 60 SUN : 0000 |
- | 61 SUN : 0000 | + | 61 SUN : 0000 |
- | 62 1148-001 | + | 62 1148-001 |
- | 63 SUN : 0000 | + | 63 SUN : 0000 |
- | 64 SUN : 0000 | + | 64 SUN : 0000 |
- | 65 1148-001 | + | 65 1148-001 |
- | 66 SUN : 0000 | + | 66 SUN : 0000 |
- | 67 SUN : 0000 | + | 67 SUN : 0000 |
- | 68 1148-001 | + | 68 1148-001 |
- | 69 SUN : 0000 | + | 69 SUN : 0000 |
- | 70 SUN : 0000 | + | 70 SUN : 0000 |
- | 71 1148-001 | + | 71 1148-001 |
- | 72 SUN : 0000 | + | 72 SUN : 0000 |
- | 73 SUN : 0000 | + | 73 SUN : 0000 |
- | 74 1148-001 | + | 74 1148-001 |
- | 75 SUN : 0000 | + | 75 SUN : 0000 |
- | 76 SUN : 0000 | + | 76 SUN : 0000 |
- | 77 SUN : 0000 | + | |
- | | + | |
Source summary | Source summary | ||
Line 244: | Line 256: | ||
ID Source | ID Source | ||
- | 1 1148-001 | + | 1 1148-001 |
- | 2 SUN : 0000 | + | 2 SUN : 0000 |
- | 3 3C286 : 0000 | + | 3 3C286 : 0000 |
ID Source | ID Source | ||
Line 612: | Line 624: | ||
'' | '' | ||
- | task ' | ||
- | sources ' '\\ | ||
- | stokes ' '\\ | ||
- | bif 0\\ | ||
- | eif 0\\ | ||
- | timer 0\\ | ||
- | antenna 0\\ | ||
- | basel 0\\ | ||
- | flagver 1\\ | ||
- | opcode ' | ||
- | reason 'bad start' | ||
- | aparm 0\\ | ||
- | aparm(2) 15/60\\ | ||
- | go\\ | ||
- | antenna 6,0\\ | ||
- | aparm(2) 35/60\\ | ||
- | go\\ | ||
task ' | task ' | ||
antenna 23,0\\ | antenna 23,0\\ | ||
Line 662: | Line 657: | ||
bif 0\\ | bif 0\\ | ||
eif 0\\ | eif 0\\ | ||
+ | timer 0\\ | ||
flagver 0\\ | flagver 0\\ | ||
dparm 0\\ | dparm 0\\ | ||
Line 807: | Line 803: | ||
optype ' | optype ' | ||
aparm 0\\ | aparm 0\\ | ||
- | aparm(2)=3\\ | + | aparm(2)=4\\ |
zerosp 0\\ | zerosp 0\\ | ||
go\\ | go\\ | ||
Line 813: | Line 809: | ||
< | < | ||
- | vlb054> SETJY1: Task SETJY (release of 31DEC08) begins | + | vlb054> SETJY1: Task SETJY (release of 31DEC10) begins |
vlb054> SETJY1: **WARNING: OPCODE=CALC AND FREQID = -1 | vlb054> SETJY1: **WARNING: OPCODE=CALC AND FREQID = -1 | ||
vlb054> SETJY1: | vlb054> SETJY1: | ||
- | vlb054> SETJY1: A source model for this calibrator | + | vlb054> SETJY1: A source model for this calibrator |
- | vlb054> SETJY1: | + | vlb054> SETJY1: |
vlb054> SETJY1: / Flux calculated using known spectrum | vlb054> SETJY1: / Flux calculated using known spectrum | ||
vlb054> SETJY1: BIF = 1 EIF = 1 /Range of IFs | vlb054> SETJY1: BIF = 1 EIF = 1 /Range of IFs | ||
- | vlb054> SETJY1: ' | + | vlb054> SETJY1: ' |
- | vlb054> SETJY1: / Using (1990) VLA or Reynolds (1934-638) coefficients | + | vlb054> SETJY1: / Using (1995.2) VLA or Reynolds (1934-638) coefficients |
vlb054> SETJY1: Appears to have ended successfully | vlb054> SETJY1: Appears to have ended successfully | ||
- | vlb054> SETJY1: vlb054 | + | vlb054> SETJY1: vlb054 |
</ | </ | ||
Line 873: | Line 869: | ||
'' | '' | ||
+ | UVFIX change in April means we have to regenerate NX table\\ | ||
+ | |||
+ | '' | ||
+ | task ' | ||
+ | getn 3\\ | ||
+ | cparm 0\\ | ||
+ | cparm(3)= -1\\ | ||
+ | bparm 0\\ | ||
+ | go\\ | ||
+ | '' | ||
Line 887: | Line 893: | ||
uvrange 0\\ | uvrange 0\\ | ||
antennas 0\\ | antennas 0\\ | ||
+ | timer 0\\ | ||
refant 24\\ | refant 24\\ | ||
weightit 1\\ | weightit 1\\ | ||
Line 1371: | Line 1378: | ||
What have you learned? | What have you learned? | ||
+ | |||
+ | Does your image look like this image? | ||
+ | {{http:// | ||
+ | |||
+ | What is different? | ||
+ | |||
+ | Have a look at http:// | ||
+ | |||