VLBI array: Multi-Element Radio-Linked Interferometer Network (MERLIN)

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MERLIN antennas. Image: Alastair Gunn

Wavelength	151 MHz to 24 GHz
Angular resolution	40 milliarcseconds at 5 GHz
Website	http://www.merlin.ac.uk

Observatory: Long Wavelength Array (LWA) USA

The Long Wavelength Array (LWA) is a radio telescope under construction in central New Mexico USA.  It is one of only a few observatories to work with such low frequencies
When complete, it will consist of 53 stations, with a total of 13,000 dipole antennas strategically placed in an area nearly 400 kms in diameter, to scan the sky at HF and VHF frequencies. Each antenna stands about 1.5 m high and about 2.7 m across the base. The first station, with 256 antennas, is scheduled to start surveying the sky in summer 2011. 

Long Wavelength Array
Location	adjacent to the Very Large Array in New Mexico.
Coordinates	34°04′N 107°38′W
Wavelength	3.4–30 m (10–88 MHz)
Built	2009–
First light	7 April 2011
Telescope style	phased array of 50 stations, each with 256 dipole antennas
Diameter	400 km
Collecting area	1 square kilometer
Mounting	fixed
Website	lwa.phys.unm.edu	[2010 info as at July 2012]

 ^{- from Wiki}

Observatory: MeerKAT

MeerKAT is the Southern Hemisphere's most powerful radio telescope. It will form 25% of the SKA Phase 1 dish array in South Africa.KAT-7 is the current configuration of seven receivers.

Technical Specifications

Number of antennae	64
Dish diameter	13.5 m
Minimum baseline	29 m
Maximum baseline	20 km
Frequency bands (receivers)	0.58 – 1.015 GHz, 1 – 1.75 GHz, 8 – 14.5 GHz

Links:
http://www.ska.ac.za/meerkat/index.php MeerKAT home
http://www.ast.uct.ac.za/laduma/Home.html   The Laduma survey
http://en.wikipedia.org/wiki/MeerKAT  Wiki page

Orbiting observatory: Nuclear Spectroscopic Telescope Array (NuSTAR)

NuSTAR is a CalTech/NASA orbiting X-ray telescope,

News:
http://www.disclose.tv/news/NuSTAR_Successfully_Deploys_Huge_Mast/85396

 Links:

http://www.nasa.gov/mission_pages/nustar/main/index.html
http://www.nustar.caltech.edu/
http://en.wikipedia.org/wiki/NuSTAR

Observatory: Australian SKA Pathfinder (ASKAP)

ASKAP is situated in a radio qiuet zone (RQZ) at the Murchison Radio-astronomy Observatory (MRO), approximately 315km northeast of Geraldton in Western Australia.

ASKAP consists of:

• Thirty-six 12m antennas 
• with a max. baseline of about 6 km., 
• working as a single instrument
• to scan the skies for radio waves at a frequency range from 700 MHz to 1.8 GHz 
• with 36 independent beams, "each of about 1 square degree, yield overlapping to a 30 square degree field-of-view at 1.4 GHz". 
• Currently being retrofitted with new Aussie tech, phased array feed receivers, to expand their width of field.

• Information on ASKAP's antennas
• Information on ASKAP's receivers
• Information on ASKAP's smart feeds
• Information on ASKAP's digital systems
• Information on ASKAP's data transport and signal transmission systems
• Information on ASKAP's computing architecture
• Information on the Parkes Testbed Facility
• Latest ASKAP Update newsletter