Useful information for observations: List of astronomical Target, Pako scripts, Real Time Analysis, Observing strategies
Contents
List of Astronomical Target for Nika November 2014 run10 = Open Pool2
FXD: First version (2 Nov 2014)
Back to the NIKA OP2/run10 page
The nominal NIKA frequencies for this run are 260 and 150 GHz (ie 1.15 and 2.00 mm).
References and results are written in this private page
1. Planets and Asteroids
Venus, Mars, Uranus, Neptune for photometric calibration (primary calibrators) and sky field-of-view geometry.
FluxMars NIKA1mm= 230.772 NIKA2mm= 77.7652
FluxUranus NIKA1mm= 42.9928 NIKA2mm= 18.0207
FluxNeptune NIKA1mm= 16.5436 NIKA2mm= 6.93438
Here are the ephemeris for all planets
The near and far sidelobes could be measured with Jupiter and Saturn.
MOON RA 07:14:50.5779 Dec 17:03:52.553 Az -134.55002 El -22.82794 Sun.D. 120.6 Vel. 0.045
SUN RA 15:07:24.8718 Dec -17:33:00.644 Az 84.63940 El -22.71966 Sun.D. 0.0 Vel. -0.393 SUN is within Sun avoidance ( 0.0 deg)
MERCURY RA 14:10:28.1623 Dec -11:13:40.212 Az 99.25574 El -30.43942 Sun.D. 15.2 Vel. 32.562
- DE= 1.23 DS= 0.37 Maj= 5.49 Min= 5.49 PA= 26.39 TB=450.00 S( 100.0)= 76.20 Frequency 100.0: Beam 24.0 Tmb 15.90 Flux 74.83 Size 24.2
VENUS RA 15:25:48.7523 Dec -18:17:27.031 Az 81.37757 El -19.48715 Sun.D. 4.4 Vel. -1.506
- DE= 1.71 DS= 0.72 Maj= 9.77 Min= 9.77 PA= 14.85 TB=350.00 S( 100.0)= 187.68 Frequency 100.0: Beam 24.0 Tmb 37.66 Flux 177.28 Size 24.7
MARS RA 18:53:43.1517 Dec -24:20:32.821 Az 44.94284 El 13.20044 Sun.D. 52.9 Vel. 8.120
- DE= 1.74 DS= 1.39 Maj= 5.38 Min= 5.36 PA= 20.01 TB=216.88 S( 100.0)= 34.91 Frequency 100.0: Beam 24.0 Tmb 7.29 Flux 34.31 Size 24.2
JUPITER RA 09:36:15.7977 Dec 14:58:09.693 Az -169.80201 El -37.36777 Sun.D. 87.8 Vel. -27.115
- DE= 5.25 DS= 5.30 Maj= 37.51 Min= 35.08 PA= 20.93 TB=170.00 S( 100.0)= 1243.32 Frequency 100.0: Beam 24.0 Tmb 132.42 Flux 623.36 Size 32.1
SATURN RA 15:33:07.7411 Dec -17:11:01.654 Az 81.31497 El -17.42276 Sun.D. 6.1 Vel. 2.897
- DE=10.93 DS= 9.95 Maj= 15.14 Min= 13.51 PA= 0.99 TB=150.00 S( 100.0)= 170.05 Frequency 100.0: Beam 24.0 Tmb 32.01 Flux 150.71 Size 25.4
URANUS RA 00:49:43.8163 Dec 04:34:52.841 Az -58.23928 El 41.11010 Sun.D. 143.9 Vel. 17.706
- DE=19.20 DS=20.01 Maj= 3.65 Min= 3.54 PA=255.46 TB=132.00 S( 100.0)= 9.41 Frequency 100.0: Beam 24.0 Tmb 1.98 Flux 9.34 Size 24.1
NEPTUNE RA 22:27:42.9850 Dec -10:26:29.060 Az -5.97253 El 42.30363 Sun.D. 105.5 Vel. 28.863
- DE=29.69 DS=29.97 Maj= 2.26 Min= 2.20 PA=330.00 TB=125.00 S( 100.0)= 3.42 Frequency 100.0: Beam 24.0 Tmb 0.72 Flux 3.41 Size 24.0
2. Usual bright quasars
- for image quality, linearity checks, and pointing sessions and photometry
3. Secondary calibrators
- for image quality, linearity checks, and pointing sessions and photometry
Here is IRAM old published report: Secondary Calibrators Lisenfeld report, and, more recent list updated till the end of the MAMBO pool in 2010: Secondary Calibrators MAMBO pool database.
Here is the full detailed formatted list Full list with fluxes, which translates to this .sou file for pako
Here is a list of IRAM pointing sources with fluxes at 3mm and 2mm (I miss fluxes at 1mm, SL) FluxForPointingSources
Interface with the telescope: PaKo
Short manual on useful "Pako for Nika" see on Granada computers on the NIKA directory Pako_helpv17.txt
- Pako scripts are in the Pako subdirectory
- Before starting the pointing session, we may be requested to move the azimuth by 60deg to reset the inclinometer of the az axis.
- Always stay at more that 1 deg from the Sun. There are internal safeties that prevent the antenna to point to the Sun, but we may not get error messages.
- try to get sources uniformly distributed on the sky, hence give priority to high elevation sources that are usually harder to reach.
- Do one focus at the beginning. No need to do more focus than one every 2-3hours.
The antenna can point between 60 and 460 degrees in azimuth, between 20 and 80 degrees in elevation.
- If a source is available both at low and high azimuth, use command SET TOPO LOW (or SET TOPO HIGH) to stay on the source without moving.
- The minimum number of sources to observe for the pointing model is 15. 30 is good enough.
- the pointing sources should be observed on 'short' period, e.g. 3-4 hours to avoid daily pointing variations
New PaKo features for NIKA, to be tested
(this is just the copy and paste from Hans's email for now; I will put un form tomorrow -SL)
to start pako test version in project t21 on mrt-astro (!!!)
- === =========
============================================================
slogin to mrt-astro (!!!)
slogin t21@mrt-astro
t21@mrt-lx2:~$ ls -l PaKoTest/
... -rw-r
1 t21 t21 1672 Oct 7 12:46 ini.pako -rw-r
1 t21 t21 1672 May 27 2013 ini.pako~ -rw-r--r-- 1 t21 t21 9119 Oct 7 14:41 NIKA2013R6.edb -rw-r--r-- 1 t21 t21 11841 Jun 15 2013 NIKA2013R6.sou -rw-r--r-- 1 t21 t21 2992 Oct 7 12:40 NIKAkidOffsetA.config -rw-r--r-- 1 t21 t21 2591 Oct 7 12:40 NIKAkidOffsetB.config -rw-r--r-- 1 t21 t21 0 Oct 7 17:02 pakoDisplayBackend.txt -rw-r--r-- 1 t21 t21 0 Oct 7 17:02 pakoDisplay.txt
- → note the configuration files NIKAkidOffsetA.config NIKAkidOffsetB.config
goPakoTest
- → should start pakoDisplay and pako
PAKO> show I-SHOW, paKo Revision v 1.2.3 2014-03-31
- → this is the test version
PAKO> receiver bolo nika PAKO> source Uranus
LISSAJOUS =========
Lissajous /Focus: maps at different focus positions done as subscans
different types of Lissajous (focus, pointing, ...) can be identified by specific information in the NCS messages
Lissajous /Focus uses the current focus as the reference value
Lissajous /Focus: maps at different focus positions done as subscans
PAKO> lissajous /default /tOtf 60 /focus -2 -1 0 1 2 Z
This commands a scan with five subscans, each a lissajous curve, done with focusOffsets -2 -1 0 1 2 mm in the standard focus direction Z
These offsets are added to the focus value specified with SET FOCUS
PAKO> lissajous /default /tOtf 60 /focus -1.5 0 1.5 X
- → 3 lissajous subscans with focusOffsets -1.5 0 1.5 mm in direction X
PAKO> lissajous /default /tOtf 60 /focus +2.2 -2.2 0.0 Y
- → 3 lissajous with +2.2 -2.2 0.0 mm in direction Y
PAKO> lissajous /default /tOtf 60 /focus no
- → turn Lissajous option /focus off,
- i.e., command a scan with a single Lissajous curve
The values for the focus values set with SET FOCUS, the focus offsets in each subscan, and the focus direction are all in the pako/NCS XML file.
In the NCS messages lissajous with /focus is distinguished from lissajous /focus no by <Data Name="observingMode">Lissajous</Data> <Data Name="purpose">focus</Data>
e.g., <Notice LogId="scanInfo.overview" TimeStamp="2014-10-06T09:31:32.550" Process="coCS.py" Host="mrt-lx1"><Data Name="observingMode">Lissajous</Data><Data Name="sourceName">Jupiter</Data><Data Name="rx.use">E090</Data><Data Name="job">3893</Data><Data Name="purpose">focus</Data><Data Name="switcher.nPhases">1</Data><Data Name="project">tt-ncs</Data><Data Name="scanId">2014-10-06.89</Data><Data Name="p4p5">11.56 -4.2 (124 min)</Data><Data Name="rx.E090.lineName">CS(2-1)</Data><Data Name="switcher.timePerRecord">0.1</Data><Data Name="comments">my remarks</Data><Data Name="queue">tt-ncs</Data><Data Name="switcher.nCycles">1</Data><Data Name="switcher.mode">totalPower</Data><Data Name="subscans">6</Data><Data Name="switcher.timePerPhase">0.1</Data></Notice> 1272.8
observingMode and purpose are also in the XML file
NOTE: of course, the parameters (amplitude etc.) for the Lissajous curves can
- be specified the usual way
Lissajous /Pointing: designate Lissajous to be for Pointing
PAKO> lissajous /pointing
PAKO> lissajous /pointing no
- → turn lissajous /pointing off
In the NCS messages lissajous with /pointing is distinguished from lissajous /pointing no by <Data Name="observingMode">Lissajous</Data> <Data Name="purpose">pointing</Data>
e.g, <Notice LogId="scanInfo.overview" TimeStamp="2014-10-06T09:24:31.128" Process="coCS.py" Host="mrt-lx1"><Data Name="observingMode">Lissajous</Data><Data Name="sourceName">Jupiter</Data><Data Name="rx.use">E090</Data><Data Name="job">3892</Data><Data Name="purpose">pointing</Data><Data Name="switcher.nPhases">1</Data><Data Name="project">tt-ncs</Data><Data Name="scanId">2014-10-06.88</Data><Data Name="p4p5">11.56 -4.2 (117 min)</Data><Data Name="rx.E090.lineName">CS(2-1)</Data><Data Name="switcher.timePerRecord">0.1</Data><Data Name="comments">my remarks</Data><Data Name="queue">tt-ncs</Data><Data Name="switcher.nCycles">1</Data><Data Name="switcher.mode">totalPower</Data><Data Name="subscans">2</Data><Data Name="switcher.timePerPhase">0.1</Data></Notice> 851.3
observingMode and purpose are also in the XML file
NOTE 1: the only effect of lissajous /pointing is to set purpose to pointing in the XML and messages
NOTE 2 -- TBD:
-- set <Data Name="purpose">map</Data> if /focus NO and /lissajous NO (default) -- include purpose in TAPAS
/TUNE =====
optional tune subscan as first subscan for observing modes: Lissajous, Otfmap, Pointing, Focus
PAKO> lissajous /default /tune -22 33 /tTune 15
- → command a Lissajous scan with a "tune" subscan before the Lissajous subscan
- -22 and 33 are the position offsets for the tune subscan
- the offsets are in the system specified by /system 15 is the time for the tune subscan
- -22 and 33 are the position offsets for the tune subscan
PAKO> otfmap /def /ref no /tune 11 22 /tTune 12
- → OTFMAP with a tune subscan at the start
- (other notes as for Lissajous)
PAKO> pointing /def /tune -200 0 /tTune 11
- → POINTING with a tune subscan at the start
- offsets for the tune subscan are in the horizontalTrue system (same as the pointing subscans)
PAKO> focus /def /tune -200 0 /tTune 11
- → FOCUS with a tune subscan at the start
- offsets for the tune subscan are in the horizontalTrue system
In all these 4 obs. modes /tune NO turns the tune subscan off
look-up tables for Nasmyth offsets of NIKA pixels =================================================
PAKO> offsets /clear
- → clear all explicitly set offsets
PAKO> receiver bolo nika 666 ... I-RECEIVER, looking for Nasmyth offsets for NIKA pixel 666 ... I-RECEIVER, opened file NIKAkidOffsetB.config I-RECEIVER, found offsets for NIKA pixel 666 : 36.900 -27.600 I-RECEIVER, Bolometer NIKA connected
- → select NIKA pixel 666
- paKo finds Nasmyth (receiver) offsets 36.900 -27.600 [arc sec]
PAKO> pointing /def PAKO> start
- → start a pointing scan with Nasmyth offsets 36.900 -27.600
PAKO> offsets 33 -44 /system Nasmyth PAKO> start
- → start a pointing scan with Nasmyth offsets 33 -44 → offsets set explicitly with OFFSETS /system Nasmyth take priority
- over values from look-up
NOTE 1: the sample configuration files NIKAkidOffsetA.config and
- NIKAkidOffsetB.config are based on those in the email from Xavier 2014-07-08
NOTE 2: for now paKo looks for files in its working directory,
- it should also look for files in a general directory of config files
NOTE -- TBD:
- -- decide with Walter where the configuration files for general use should live -- discuss with Walter some general standards for configuration files
DIY- Tip ========
special version of the source command to do the scan at the current azimuth
in scripts for DIY tips use a source command of the form:
SOURCE TipCurrentAzimuth HO 180 10 !! "Source" at current azimuth ! !! elevation 10 [deg]
The special source name "TipCurrentAzimuth" indicates that the specified azimuth 180 [deg] will be replaced by the current azimuth.