Learmonth Solar Radio
SPASE version 2.2.3
Display Data Product: Australian Space Weather Forecasting Centre Learmonth Solar Observatory Solar Radio Data
- Resource ID
- spase://ASWS/DisplayData/Solar Radio/Lem_Solar_Radio
- Name
- Australian Space Weather Forecasting Centre Learmonth Solar Observatory Solar Radio Data
- Alternate name
- Description
-
The discrete frequencies Solar Radio data, also known as Radio Interference Monitoring Sets (RIMS), is obtained from Learmonth Solar Observatory, Western Australia, Australia. A radio telescope with three parabolic dish antennae to monitor solar radio flux on 8 discrete frequencies in the range 245-15400 MHz. The three parabolic dish antennae feed eight, single frequency, radio telescopes. The largest antenna, 28 feet (8.5 meters) diameter, is used to monitor 245, 410 and 610 MHz. An 8 feet (2.4 meters) dish is used to monitor the microwave frequencies of 1415, 2695, 4995 and 8800 MHz. A small 3 feet (1 meter) dish monitors the high microwave frequency of 15400 MHz. Radio telescope outputs are digitised (1 Hz sampling rate), collected by computer and transferred to Sydney WDC for process and archive. Observers in Learmonth also send DVDs with RIMS (2 DVD per year) to Sydney as backup for the data. Up to date, we have archived four different formats of RIMS data. They are SRD (from 2005), APL(1999-2008), LSR(1991-2006) and rdata(2003-2005). All of them are available on our data server and the website. All of the data files are online plottable and downloadable.
- Additional information
-
- World Data Centre: Data Display and Download
-
includes browse display interface, and link to data availability chart
- Language
- en
- Documentation
-
includes descriptions of Observation Log format, data format
- Language
- en
- Real Time Display
-
Real Time display of solar radio (245-15400 MHz) during daylight hours in Learmonth
- Language
- en
- Acknowledgement
-
We are thankful to the United States Air Force at Learmonth Solar Observatory for supplying the RIMS instrumentation and data flow, as well as the USAF staff for maintaining and providing the solar radio data in near real time.
- Contact
-
Role Person 1. General contact spase://SMWG/Person/Kehe.Wang 2. Metadata contact spase://SMWG/Person/Kehe.Wang - Release date
- 2016-06-27 17:00:00
- Repository
-
- Name
- spase://SMWG/Repository/SWS
- Availability
- Online
- Access rights
- Open
- URL
-
- https access to dynamic spectra plots
-
https access to the Learmonth Solar Radio data files
- Language
- en
- Format
- Text
- Encoding
- None
- Acknowledgement
- Instrument
- spase://ASWS/Instrument/Ground/Learmonth/Solar_Radio
- Measurement type
- Passive waves
- Temporal description
-
- Start date
- 1991-01-01 05:00:00
- Relative stop date
- 2 days ago
- Note
-
Data are current to within a day or two.
- Display cadence
- 12 hours
- Observed regions
- Earth.Magnetosphere
- Heliosphere.Inner
- Heliosphere.Outer
- Sun
- Caveats
-
The time span for each plot varies, generally spanning daylight hours.
- Keywords
- Discrete frequency solar radio
- Radio telescope
- Solar radio burst
- Solar radio flux
Parameters
Parameter #1
- Name
- Frequency
- Description
-
8 discrete frequencies used to monitor solar radio flux.
- Caveats
- Cadence
- 1 second
- Units
- Wave type
- Electromagnetic
- Quantity
- ACElectricField
- Qualifier
- Magnitude
- Pseudo
- Frequency range
-
- Spectral range
- RadioFrequency
- Low frequency
- 254
- High frequency
- 15400
- Units
- MHz
Parameter #2
- Name
- Solar Radio Flux Value(SFU)
- Description
-
The Solar Flux Unit (SFU) is a convenient measure of spectral flux density often used in solar radio observations: 1 SFU = 10^4 Jy = 10^{−22} Watts meter^{−2}Hz^{−1} = 10^{−19}erg s^{−1}cm^{−2}Hz^{−1}.
- Caveats
-
A local radio interference, clouds (for high frequence) etc.
- Cadence
- 1 second
- Units
- SFU
- Valid minimum
- 0
- Valid maximum
- 500,000
- Quantity
- Electromagnetic
- Qualifier
- Spectral
