In [1]:
### How to use the online plotter to show mapping mbfits  ###
#  Mode: specified subscans/ complete scans##
#  File Filter: EFFBG*.fits  ## to choose fits files
#  FeBe: S45mm-OPTOCBE       ## select backends
#  average mode: average subscans (binned)
#  continuum baseline order (removal): -1
#  To show maps:
#  mapping: (select) compute maps
In [2]:
### How to use Peter Mueller's toolboxes which are convenient for quicklook####
#   slogin observer4 -l ygong
### Toolbox (setting in the bash):
    #alias toolbox='/homes/peter/Test_Toolbox2/toolbox2.py'
    #alias nod3='/homes/peter/New_NOD3/nod3.py'
    #export PYTHONPATH=/homes/peter/New_NOD3/lib/python2.7/site-packages/

### A detail describtion of toolbox can be found via 
### https://eff100mwiki.mpifr-bonn.mpg.de/doku.php?id=information_for_astronomers:user_guide:reduc_pointing    
### toolbox plot='/xs' (or '/ops') febe='S45mm-SPECPOL' scan=7173 waterfall spcreate (or spmask=spmask)
#   right mouse to zoom in 
#   left click + space --> flag data  ---> may choose "repair" to repair the data
### stard nod3 to quicklook the data 
#   nod3
In [3]:
########### Polarimeter test     ########
#   During the polarimeter test of linear polarized signals, Q is 50% of I, try to change attenuation power of ADC (+3dB)
#   It works fine afterwards.
In [5]:
############ observation strategy ##########
## time: 13.02 2018 2-17 LST, 17-8 CET
## Goal, 3C273, 1' sampling, 2 directions (AZ/EL mapping), 30'x30' size
## Switch between polarized and unpolarized sources for a range in parallactic angles
## 10'x10', latitude mapping
## Polarized sources : 3c138, 3C286, W44 (18:56:10.650, 01:13:21.30 J2000)
## unpolarized sources: 3C147, 3C295, NGC7027
## A long stripe through W3 (L=133.9476, B=1.0650), 15' wide to convolve the stripe to the Urumqi resolution.
## frequency setups: low frequency 4-6 GHz, 1024 channels
In [ ]:
###### observation logs ##########
# Scan.No.     source       notes
# 7147         NGC7027      pointing
# 7148         NGC7027      focus
# 7149         NGC7027      focus    z=-2.1 mm
# 7150         NGC7027      pointing   dcol=-0.4"  beam1=140.5"  dNulE=-0.5"   beam2=137.8"
# 7151         NGC7027      small maps 10'x10' (canceled)
# 7152         NGC7027      small maps 10'X10'  11 subscans, 1 subscan:12seconds
#                           Equatorial system  
#                           Direction: latitude (scanning direction)
#                           projection: Cartesian
#                           scanning_in: Azimuth/Elevation system
#                           scanning velocity: 50"/sec
#                           scanning spacing: 1'
# 7153         3C147        pointing   dcol=5.7" beam1=137.2"  dNulE=22.7"  beam2=183.8"
# 7154         3C147        scanning in Coordinated system, the other settings are the same as scan 7152
# 7155         3C138        all observational settings are the same as 7154
# 7156         3C147        it is wrong, coordinates are those of 3C138
# 7157         3C138        the same setting
# 7158         3C147        the same setting
# 7159         3C138        the same setting
# 7160         3C147        the same setting, the Elevation is too high
# 7161         3C138        the same setting
# 7162         3C84         pointing, dcol=-7.1" beam1=135.8"  dNulE=-14.4" beam2=132.6
# 7163         W3OH         15'x240' map (canceled?)
# 7164         W3OH         Galactic coordinate system (scanning in the Galactic system, coordinates given in degrees)
#                           scanDirection: Latitude
#                           scanVelocity: 5'/sec
#                           scanspacing: 1'          (EL=60)
# 7165         3C138        pointing  dcol=4.8"  beam1=133.7"  dNulE=5.0 beam2=133.7" (EL=55)
# 7166         3C138        focus
# 7167         3C138        map
# 7168         3C147        pointing (results are not good due to RFI)
# 7169         3C147        pointing dcol=4.5" beam1=136.6" dNulE=-6.1" beam2=134.8  (EL=74)
# 7170         3C147        map, setting as scan 7154
# 7171         3C138        map
# 7172         3C147        map
# 7173         3C138        map
# 7174         3C147        map
# 7175         3C138        map
# 7176         3C147        map
# 7177         3C138        map
# 7178         3C147        but the coordinates are 3C138
# 7179         3C147        map
# 7180         3C138        map   (EL=37)
# 7181         3C147        map
# 7182         3C138        map
# 7183         3C147        map
# 7184         3C138        map
# 7185         3C147        map
# 7186         3C138        map
# 7187         3C147        map
# 7188         3C138        map
# 7189         3C147        map
# 7190         3C138        map
# 7191         3C147        map
# 7192         3C286        pointing
# 7193         3C286        map
# 7194         3C295        this is canceled because the topology is not set.
# 7195         3C295        map
# 7196         3C286        map 
# 7197         3C295        map
# 7198         3C286        map
# 7199         3C295        map
# 7200         3C286        map
# 7201         3C295        map
# 7202         3C286        map
# 7203         3C295        map
# 7204         3C286        map
# 7205         3C295        map
# 7206         3C286        map
# 7207         3C273        AZ/EL scanning, 30'x30' mapping, latitude direction
#                           50"/sec, 1' spacing,  (EL=39)
# 7208         3C273        longitude direction (others are the same as scan 7207)
# 7209         3C286        pointing   dcol=0.3" dNulE=5  beam=136.4  (EL=63)
# 7210         3C286        10'x10' mapping
# 7211         3C295        warning, canceled
# 7212         3C295        map
# 7213         3C286        map
# 7214         3C295        map
# 7215         3C286        timeout canceled SPECPOL: comfingure, SPECPOL ERROR found
# 7216         3C286        map
# 7217         3C295        map
# 7218         3C286        map  (EL=68)
# 7219         3C295        map  (EL=78)
# 7220         3C286        map  (EL=69)
# 7221         3C295        10'x10' mapping (EL=82)
# 7222         3C273        canceled 
# 7223         3C273        pointing  dcol =-3.8"  beam1=135.6  dNulE=7.9" beam2=136.1"
# 7224         3C273        30'x30' map AZ/EL scanning latitude
# 7225         3C273        longtitude 
# 7226         3C196        pointing  dcol=11.1" beam1= 138.9"  dNulE=-8.5"  beam2=136.5"
# 7227         W3           canceled 
# 7228         W3           15'x240'  coordinates in Galactic 
#                            latitute,   5'/sec, 1' spacing      (EL=22)
# 7229         3C286        pointing canceled
# 7230         3C286        pointing dcol=-6.2" beam1=136.6" dNulE=-4.4" beam2=135.8" 
# 7231         3C286        mapping 10'x 10'  latitude coordinate system
#                           50"/sec, 1' spacing
# 7232         3C295        map
# 7233         3C286        map
# 7234         3C295        map
# 7235         3C286        map
# 7236         1741-038     pointing
# 7237         W44          60'x60'  coordinate system latitude
#                           2'/sec,  1' spacing
#                           latitude (50 min in total once)
# 7238         W44          60'x60'  coordinate system longitude
#                           2.5'/sec, 1' spacing
#                           longitude (39 min in total once)