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April 4, 2010
Space Weather Prediction Center (SWPC)
Solar Radio Flux Data Lists
=============================================================================
Solar Radio Flux Data
Air Force 245, 410, and 610 MHz Data Resumes
April 4, 2010-- The 28ft radio antennas at all four Air Force RSTN sites:
Learmonth, Sagamore Hill, Palehua, and San Vito are operational.
IFLUX and BURST data at 245, 410 and 610MHz have resumed beginning with
Palehua on March 18th.
====================================================================
====================================================================
The Solar Radio Flux lists contain noon flux values from Penticton, Canada
and the U.S. Air Force Radio Solar Telescope Network (RSTN) sites. The RSTN
sites are Learmonth, Australia; San Vito, Italy; Sagamore Hill, Mass.; and
Palehua, Hawaii. RSTN sites measure the solar radio flux within one hour of
central meridian passage (CMP), that is near their local noon. Penticton
records values 3 times a day with the 2000 UTC value being closest to central
meridian passage.
Location Lat Lon Local Noon
(reporting time)
San Vito 40.40N 17.43E 1200 UTC
Sag Hill 42.38N 70.49W 1700 UTC
Penticton 49.30N 119.35W 2000 UTC
Learmonth 22.13S 114.60E 0500 UTC
Palehua 21.24N 158.06W 2300 UTC
All values from the USAF stations are adjusted to 1 A.U.
The Pentiction values are NOT adjusted to 1 A.U. Adjusted and unadjusted values
from Pentiction are available at the National Geophysical Data Center about
one month later. See http://www.ngdc.noaa.gov/stp/
The output is a table with one row for each frequency and one column for each
site. The value is the flux, missing values are shown as -1. Values range
from 1 to 999.
Radio Flux lists updated hourly at 30 minutes past the hour.
Radio Bursts list updates twice an hour at 10 and 40 minutes past the hour.
For ftp users,
ftp.swpc.noaa.gov
cd pub/lists/radio
Filenames: rad.txt
7day_rad.txt
30day_rad.txt
45day_rad.txt
radio_bursts.txt
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Solar Radio Burst Event Summary Lists
Added in October 2001.
See About Radio Burst List (README2 file) for a description.
Solar Radio Spectrum
Level of Origin Freq (MHz) Wavelength
--------------------------------------------------
Lower Chromosphere 15400 1.9 cm
8800 3.4 cm
--------------------------------------------------
Middle Chromosphere 4995 6.0 cm
2695 11.1 cm
--------------------------------------------------
Upper Chromosphere 1415 21.2 cm
610 49.2 cm
410 73.2 cm
--------------------------------------------------
Lower Corona 245 1.2 m
--------------------------------------------------
Upper Corona 75 to 25 4.0 m to 12.0 m
--------------------------------------------------
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
******************************************************************
** Please read the SWPC Disclaimer at http://www.swpc.noaa.gov/ **
******************************************************************
SWPC provides near-real-time and recent data, solar and geomagnetic
indices and solar event reports created from preliminary reports.
Preliminary data may contain errors or be revised after further
review. The historical products in this SWPC Warehouse are the
preliminary reports as originally published. SWPC does not encourage
the use of preliminary data for research purposes.
Links to on-line data at SWPC and archive sites with final data:
http://www.swpc.noaa.gov/Data/
******************************************************************
Please send comments and questions to SWPC.Webmaster@noaa.gov
Report problems to SWPC.CustomerSupport@noaa.gov
*******************************************************************************
*******************************************************************************
Sample Noon Solar Radio Flux List
*******************************************************************************
*******************************************************************************
:Product: Solar Radio Data rad.txt
:Issued: 1645 UT 18 Jul 1997
#
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center.
# Please send comments and suggestions to sec@sec.noaa.gov
# Units: 10^-22 W/m^2/Hz
# Missing Data: -1
#
# Daily local noon solar radio flux values - Updated once an hour
#
Freq Learmonth San Vito Sag Hill Penticton Penticton Palehua Penticton
MHz 0400 UT 1100 UT 1600 UT 1700 UT 2000 UT 2200 UT 2300 UT
1997 Jul 17
245 11 15 10 -1 -1 10 -1
410 23 24 25 -1 -1 27 -1
610 34 -1 37 -1 -1 34 -1
1415 48 51 51 -1 -1 50 -1
2695 67 71 70 -1 -1 68 -1
2800 -1 -1 -1 70 70 -1 70
4995 118 119 119 -1 -1 115 -1
8800 204 213 222 -1 -1 219 -1
15400 -1 528 491 -1 -1 523 -1
1997 Jul 18
245 11 -1 -1 -1 -1 -1 -1
410 24 -1 -1 -1 -1 -1 -1
610 35 -1 -1 -1 -1 -1 -1
1415 49 51 -1 -1 -1 -1 -1
2695 69 74 -1 -1 -1 -1 -1
2800 -1 -1 -1 -1 -1 -1 -1
4995 119 116 -1 -1 -1 -1 -1
8800 207 208 -1 -1 -1 -1 -1
15400 -1 519 -1 -1 -1 -1 -1
================================================================================
OLD NOTICES
=== Air Force 245, 410, and 610 MHz Data Resumes ===
April 4, 2010-- The 28ft radio antennas at all four Air Force RSTN sites:
Learmonth, Sagamore Hill, Palehua, and San Vito are operational.
IFLUX and BURST data at 245, 410 and 610MHz have resumed beginning with
Palehua on March 18th.
=== Air Force 245, 410, and 610 MHz Data Resumes ===
March 31, 2010-- The 28ft radio antennas at Air Force RSTN sites at
Learmonth, Sagamore Hill and Palehua are operational. IFLUX and BURST
data at 245, 410 and 610MHz have resumed beginning with Palehua on
March 18th.
Repairs at the San Vito Italy RSTN site are expected to be completed
by April 15.
=== Air Force 245, 410, and 610 MHz Data Resumes ===
March 25, 2010-- Repairs to the 28ft antennas at all Air Force RSTN
sites (Learmonth, San Vito, Sagamore Hill and Palehua) should be
completed March 31. IFLUX and BURST data at 245, 410 and 610MHz resumed
from most sites this week, beginning with Palehua on March 18th.
SWPC did not receive 245, 410, and 610 MHz IFLUX or BURST data from
any RSTN site from March 5-17, 2010.
====================================================================
=== No Air Force 245, 410, and 610 MHz Data Until Further Notice ===
March 5, 2010 -- The Air Force RSTN sites (Learmonth, San Vito, Sagamore Hill
and Palehua) have taken their 28ft antennas out of service due to safety
concerns with the gearing mechanism that positions the antenna. Affected
frequencies are 245, 410 and 610 MHz. As a result, SWPC will not be receiving
IFLUX or BURST data from these three frequencies until further notice.
The estimate to repair the Learmonth site is at least 15 weeks. The other
sites may resume soon if they are not affected by the problem.