User Tools

Site Tools


start

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
start [2018/03/06 02:21]
intema [Interactive Access]
start [2019/07/17 07:44] (current)
intema
Line 22: Line 22:
 News will be posted here and on our [[https://​www.facebook.com/​TGSSADR/​|Facebook page]]. News will be posted here and on our [[https://​www.facebook.com/​TGSSADR/​|Facebook page]].
  
 +   * 22-Aug-2018:​ Since 1-2 weeks there have been some issues with the VO server where TGSS ADR is hosted. As a result, also NASA SkyView has not been working correctly for TGSS ADR. Please know that the problem is being addressed, and SkyView is expected to properly work again in a matter of days.
    * 01-Dec-2017:​ A special version of TGSS ADR1 has been combined with NVSS to create a spectral index map and catalog of approx. 80 percent of the radio sky. The public data release page is found [[spidx|here]].    * 01-Dec-2017:​ A special version of TGSS ADR1 has been combined with NVSS to create a spectral index map and catalog of approx. 80 percent of the radio sky. The public data release page is found [[spidx|here]].
    * 15-Nov-2016:​ The TGSS-based LOFAR Sky Model Creator now has a flux cutoff option to exclude sources below a certain threshold. This can be used to speed up the initial calibration by using fewer model sources.    * 15-Nov-2016:​ The TGSS-based LOFAR Sky Model Creator now has a flux cutoff option to exclude sources below a certain threshold. This can be used to speed up the initial calibration by using fewer model sources.
Line 46: Line 47:
  
 The TGSS ADR survey products are hosted by the ASTRON virtual observatory (VO) system. This system complies with the VO standard and can be accessed directly by tools like [[http://​www.star.bris.ac.uk/​~mbt/​topcat/​|TOPCAT]]. The VO system provides three services, for which web-based interfaces are available: The TGSS ADR survey products are hosted by the ASTRON virtual observatory (VO) system. This system complies with the VO standard and can be accessed directly by tools like [[http://​www.star.bris.ac.uk/​~mbt/​topcat/​|TOPCAT]]. The VO system provides three services, for which web-based interfaces are available:
-   * [[http://​vo.astron.nl/​tgssadr/​q_fits/​imgs/​form|TGSSADR Image Archive]] containing 5336 mosaic images of 5x5 square degrees covering the survey area. +   * [[https://​vo.astron.nl/​tgssadr/​q_fits/​imgs/​form|TGSSADR Image Archive]] containing 5336 mosaic images of 5x5 square degrees covering the survey area. 
-   * [[http://​vo.astron.nl/​tgssadr/​q_fits/​cutout/​form|TGSSADR Image Cutout Service]] provides cutout images of up to 1x1 square degrees anywhere in the survey area. +   * [[https://​vo.astron.nl/​tgssadr/​q_fits/​cutout/​form|TGSSADR Image Cutout Service]] provides cutout images of up to 1x1 square degrees anywhere in the survey area. 
-   * [[http://​vo.astron.nl/​tgssadr/​q/​cone/​form|TGSSADR Source Catalogue]] provides access to the 0.63 Million radio source catalog extracted from the full survey area.+   * [[https://​vo.astron.nl/​tgssadr/​q/​cone/​form|TGSSADR Source Catalogue]] provides access to the 0.63 Million radio source catalog extracted from the full survey area.
 The VO service links are given here: The VO service links are given here:
-   * [[http://​vo.astron.nl/​tgssadr/​q/​cone/​scs.xml|TGSSADR VO Source Cone Search (SCS)]] +   * [[https://​vo.astron.nl/​tgssadr/​q/​cone/​scs.xml|TGSSADR VO Source Cone Search (SCS)]] 
-   * [[http://​vo.astron.nl/​tgssadr/​q_fits/​imgs/​siap.xml|TGSSADR VO Simple Image Access (SIA)]]+   * [[https://​vo.astron.nl/​tgssadr/​q_fits/​imgs/​siap.xml|TGSSADR VO Simple Image Access (SIA)]]
  
 The 5x5 square degree mosaic images that form the basis of TGSS ADR1 are available for direct download [[http://​tgssadr.strw.leidenuniv.nl/​mosaics/​|here]] (5336 FITS images; 32 MB each). Note that there is a factor 3.6(!) redundancy in the sky coverage, mainly to guarantee up to 1x1 square degree cutouts anywhere in the survey area. The 5x5 square degree mosaic images that form the basis of TGSS ADR1 are available for direct download [[http://​tgssadr.strw.leidenuniv.nl/​mosaics/​|here]] (5336 FITS images; 32 MB each). Note that there is a factor 3.6(!) redundancy in the sky coverage, mainly to guarantee up to 1x1 square degree cutouts anywhere in the survey area.
Line 73: Line 74:
 <code python> <code python>
 import pyvo as vo import pyvo as vo
-url = 'http://​vo.astron.nl/​tgssadr/​q/​cone/​scs.xml'​+url = 'https://​vo.astron.nl/​tgssadr/​q/​cone/​scs.xml'​
 t = vo.conesearch( url, pos = vo.object2pos( 'NGC 5939' ), radius = 30.0 ) t = vo.conesearch( url, pos = vo.object2pos( 'NGC 5939' ), radius = 30.0 )
 print t.votable print t.votable
Line 103: Line 104:
  
 You can use the TGSS ADR source catalog for generating a BBS-compatible Global Sky Model to calibrate your LOFAR data. Either fill out the form below, or run something like \\ You can use the TGSS ADR source catalog for generating a BBS-compatible Global Sky Model to calibrate your LOFAR data. Either fill out the form below, or run something like \\
-//wget -O GSM.txt <​nowiki>'​http://​tgssadr.strw.leidenuniv.nl/​cgi-bin/​gsmv3.cgi?​coord=3c323&​radius=3&​unit=deg&​deconv=y&​cutoff=0.3'</​nowiki>​+//wget -O GSM.txt <​nowiki>'​http://​tgssadr.strw.leidenuniv.nl/​cgi-bin/​gsmv4.cgi?​coord=3c323&​radius=3&​unit=deg&​deconv=y&​cutoff=0.3'</​nowiki>​
 // //
  
 <​html>​ <​html>​
-<form name="​TGSSGSM"​ method="​POST"​ action="​cgi-bin/​gsmv3.cgi">  ​+<form name="​TGSSGSM"​ method="​POST"​ action="​cgi-bin/​gsmv4.cgi">  ​
 Position =  <input type="​text"​ name="​coord"​ /> Position =  <input type="​text"​ name="​coord"​ />
 (NED/Simbad Object or RA,​Dec) ​ (NED/Simbad Object or RA,​Dec) ​
Line 186: Line 187:
 <!-- End of StatCounter Code for Default Guide --> <!-- End of StatCounter Code for Default Guide -->
 </​html>​ </​html>​
-\\ Feedback: [[intema@strw.leidenuniv.nl|Click here]]+\\ Feedback: [[huib.intema@curtin.edu.au|Click here]]
start.1520302902.txt.gz · Last modified: 2018/03/06 02:21 by intema