LOFAR ELAIS-N1: Low-Frequency Radio Sky Observations at ~150 MHz

11 observation runs of approximately 8 hours each, plus calibration target data, were conducted by the International LOFAR Telescope during its cycle 2. The data are measurement sets containing cross-correlated data and metadata for the ELAIS-N1 sky field, divided into 371 frequency sub-bands per target centered at ~150 MHz. The dataset is hosted by the Institute for Astronomy, University of Edinburgh.

Use Cases

• Process low-frequency radio interferometry data based on the measurement set (MS) format described
• Analyze celestial sources in the ELAIS-N1 field based on the cross-correlated data
• Calibrate radio telescope observations using the included calibration target data mentioned in the description
• Study spectral properties across 371 frequency sub-bands centered at ~150 MHz

Strengths

• Includes calibration target observations before and after the main target field, which is critical for data quality
• Data are divided into 371 frequency sub-bands per target, providing spectral granularity
• Observations consist of 11 runs of about 8 hours each, offering a substantial total observation time

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Last update date is unknown; freshness unverified

Provenance

Source

Institute for Astronomy, University of Edinburgh

Collection Method

Observations from the International LOFAR Telescope during cycle 2.

Time Range

Cycle 2 of LOFAR observations (specific dates unknown).

Freshness

Last updated date is unknown.

Geography

Sky field ELAIS-N1 (coordinates: 16:10:01 +54:30:36).