SPASE version 2.2.3

Display Data Product: Australian Space Weather Forecasting Centre Learmonth Observatory Spectrograms

Resource ID

spase://ASWS/DisplayData/Spectrograph/Lem_Spectrograph

Name

Australian Space Weather Forecasting Centre Learmonth Observatory Spectrograms

Alternate name

Description

Culgoora and Learmonth Observatories dynamic spectrogram plots display frequency in MHz on the vertical axis and time in UT on the horizontal axis. The time span for each plot varies, generally spanning local day time hours with time resolution of 3 seconds. The frequency range is 18 - 1800 MHz for Culgoora spectrogams and 25 - 180 MHz for Learmonth spectrograms. The intensity values are color coded and are expressed as relative logarithmic units (0 to 255). The Culgoora spectrograms consist of 4 frequency bands: 18-57, 57-180, 180-570 570 -1800 MHz and Learmonth has 2 bands: 25-75, 75-180 MHz. The two Learmonth bands are each divided into 400 frequency steps. Culgoora spectrograph data is available since November 1992, Learmonth data since June 2000.

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

Software

Language

en

Real Time Display

Real Time display of spectrograph (18-180 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 spectrograph instrumentation, as well as the USAF staff for maintaining and providing the spectrograph 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

2015-10-19 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 GIF images, thumbnails, event logs and raw data files

Language

en

Format

GIF

Encoding

None

Acknowledgement

Instrument

spase://ASWS/Instrument/Ground/Learmonth/Radiospectrograph

Measurement type

Passive waves

Temporal description

Start date

2000-06-16 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

Dynamic Spectrogram

Jovian Decametric Radiation

Solar radio burst

Spectrogram

Transmitter

Type II Solar radio burst

Type III Solar radio burst

Type IV Solar radio burst

Parameters