By paddloPayday loans

Solar image from Tower 2

Published in: on September 3, 2011 at 10:54 pm  Comments (1)  

First image in two+ years from Tower 2!

Today Tom finally got an image from Tower 2. It’s not much, decease but it’s a start. It’s really not too bad considering the shape of the mirror coatings.

Published in: on September 3, 2011 at 10:52 pm  Leave a Comment  

Solar Activity Aug 18 – Aug 28

Published in: on September 1, 2011 at 4:51 pm  Leave a Comment  

Recent Jupiter Activity on Radio Jove through Aug 17, 2011

Published in: on August 20, 2011 at 12:16 pm  Leave a Comment  

Recent Solar Activity on Radio Jove through Aug 17, 2011

Published in: on August 20, 2011 at 12:09 pm  Leave a Comment  

Recent SuperSID plots through Aug 17, 2011

Published in: on August 20, 2011 at 12:00 pm  Leave a Comment  

Recent Radio Jove Solar Activity, End of July, 2011

Published in: on August 4, 2011 at 7:06 pm  Leave a Comment  

SARA Conference 2011

Tom, capsule Lee and Jane, price
and Dave attended the SARA Conference this year in Green Bank, WV, at the NRAO.  Tom and Dave presented a talk on VLF noise reduction that went well.  We saw several other talks on various topics, got a chance to use our natural radios in a National Radio Quiet Zone, demonstrated SuperSID and met a lot of new people.  There were attendees from Alberta, Colorado, Kansas, Louisiana, Florida, South Carolina, New York, Kentucky, Tennessee, Massachusetts, Germany, etc. and of course, Michigan.  Tom won a special door prize to go up to the top of the Great Big Telescope (GBT) which was a rare treat.  Dave was elected to a director position on the SARA Board of Directors.  We also met Wes Sizemore, the RFI man for the past 30 years there, who retired two days later.

Published in: on July 1, 2011 at 5:09 am  Leave a Comment  

Spectral Leakage

If you notice the sort of sidebands to either side of 25.2 kHz, cost   one between 25.2 and 24.8, opisthorchiasis  and  more  below 24.8 kHz (although they show weaker there), stomach I’ve always wondered what they were.  They do not appear to be “real” signals.  Ignore the squiggly lines on either side of 24 kHz which are part of my noise problem.
I found the wiki below that may explain it, although it’s a tad over my head.
http://en.wikipedia.org/wiki/Spectral_leakage
There is more here:
http://en.wikipedia.org/wiki/Window_function
Published in: on June 21, 2011 at 3:31 am  Leave a Comment  

Interpreting GOES Solar Event Reports

January 28, this  2011

EDITED SOLAR EVENTS LISTS

------------------------------------------------------------------

Jan 28, 2011 -- Edited Events lists from Jan 24 through 28 had bad
Radio and Flare date/times. The files have been corrected.

------------------------------------------------------------------

This directory contains the last 60 daily files of preliminary solar
event reports received at SWPC and manually reviewed and edited by the
duty forecaster. SWPC compiles these lists from preliminary reports
received from contributing stations. Incorrect, missed, and incomplete
reports are possible.

Files for the current full year, and earlier years are online from 1996.
See the SWPC FTP server ftp.swpc.noaa.gov at  /pub/warehouse or via a
web browser: http://www.swpc.noaa.gov/ftpmenu/warehouse.html

Today's list is updated every 30 minutes at 2 and 32 minutes past the hour.
Yesterday's list is updated every 3 hours, and the lists for the past 3 days
are recreated daily at 0302 to pick up late additions or changes.

Filename format: YEARMODAevents.txt -- 4 digit year, 2 digit month, 2 digit day.
In addition,   "events.txt"       contains the current day's list.
"yesterday.txt"    contains the previous day's list.

A subset, called the "energetic events" is available in other SWPC products.
Solar Geophysical Activity Summary (SGAS)
http://swpc.noaa.gov/ftpmenu/forecasts/SGAS.html

Daily Space Weather Event Reports
http://swpc.noaa.gov/ftpmenu/indices/dayevt.html

SWPC's WEEKLY publication, in Adobe PDF format
http://swpc.noaa.gov/weekly/


A sample list and descriptions of each field are included below.
The format is fixed, 80 columns wide, with standard headers.
If no events are reported a single line is shown
NO EVENT REPORTS.

Previous user notices are at the bottom of this file.

Your comments and suggestions are welcome.
SWPC.Webmaster@noaa.gov

========================================================================

Sample Report from 2005 showing high solar activity. Note our name changed
from Space Environment Center to Space Weather Prediction Center in October 2007.
********************************************************************************

:Product: 20050316events.txt
:Created: 2005 Mar 17 1802 UT
:Date: 2005 03 16
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center.
# Please send comments and suggestions to SEC.Webmaster@noaa.gov
#
# Missing data: ////
# Updated every 30 minutes.
#                            Edited Events for 2005 Mar 16
#
#Event    Begin    Max       End  Obs  Q  Type  Loc/Frq   Particulars       Reg#
#-------------------------------------------------------------------------------

1590       0318   0318      0318  LEA  G   RBR  245       51

1620 +     0348   ////      1635  COM  C   RSP  30-80     CTM/1

1600 +     0408   0410      0412  LEA  G   RBR  245       210

1730 +     0422   1214      1511  COM  G   RNS  245       160

1610       0522   0528      0532  G10  5   XRA  1-8A      B4.2    1.9E-04

1630       0741   0744      0748  G10  5   XRA  1-8A      B1.9    7.3E-05
1630       0741   ////      0743  SVI  C   RSP  025-089   III/1

1640       1052   ////      1053  SVI  U   RSP  025-046   III/1

1650       1125   1125      1125  SVI  G   RBR  245       85
1650       1125   1125      1125  SVI  G   RBR  410       46

1660       1150   ////      1150  SVI  C   RSP  025-041   III/1

1670 +     1205   1208      1210  G12  5   XRA  1-8A      B3.5    8.1E-05   0742
1670       1206   1206      1209  SAG  G   RBR  245       100               0742
1670       1207   1207      1207  SAG  G   RBR  410       56                0742
1670       1209   1210      1210  G12  5   XFL  S02W48    3.0E+02 6.5E+02   0742
1670       1210   ////      2228  SAG  C   RSP  110-180   CTM/1             0742

1680 +     1217   1221      1223  G12  5   XRA  1-8A      B5.1    1.4E-04   0742
1680 +     1219   1219      1219  SVI  G   RBR  410       310               0742
1680       1221   1222      1223  G12  5   XFL  S03W50    7.5E+02 2.3E+03   0742

1690 +     1242   1245      1247  G12  5   XRA  1-8A      B3.1    7.7E-05   0742
1690       1246   1246      1247  G12  5   XFL  S07W48    4.3E+02 9.1E+02   0742

1700 +     1306   ////      1306  SAG  C   RSP  030-053   III/1

1710 +     1318   1322      1332  G12  5   XRA  1-8A      B3.0    2.3E-04   0742
1710       1322   1327      1331  G12  5   XFL  S07W53    2.3E+02 4.6E+02   0742

1720 +     1339   ////      1339  SVI  C   RSP  025-034   III/1

1750       1450   ////      1451  SVI  C   RSP  025-180   III/1

1760 +     1542   1547      1554  G12  5   XRA  1-8A      B3.8    2.1E-04   0742
1760 +     1544   1544      1546  SAG  G   RBR  245       380               0742
1760 +     1544   ////      1545  SAG  C   RSP  030-180   III/1             0742
1760       1546   1550      1553  G12  5   XFL  S07W54    4.8E+02 1.0E+03   0742

1770       1633   ////      1634  SAG  C   RSP  030-050   III/1

1780       1755   ////      1756  SAG  C   RSP  030-053   III/1

1790 +     1851   ////      1851  PAL  C   RSP  025-085   III/1

1800 +     1947   1953      1959  G12  5   XRA  1-8A      B5.9    3.3E-04   0742
1800       1952   1957      1957  G12  5   XFL  S06W57    7.3E+02 1.8E+03   0742

1810 +     2029   2034      2036  G12  5   XRA  1-8A      B5.3    1.6E-04   0742
1810 +     2030   ////      2032  CUL  C   RSP  20-350    III/2             0742
1810       2033   2033      2035  G12  5   XFL  S07W54    7.8E+02 2.0E+03   0742
1810 +     2035   2035      2035  PAL  G   RBR  245       110               0742
1810       2035   2035      2035  PAL  G   RBR  410       63                0742

1820 +     2049   2053      2056  G12  5   XRA  1-8A      B3.6    1.3E-04   0742
1820       2051   ////      2051  CUL  C   RSP  40-160    III/1             0742
1820       2053   2053      2053  G12  5   XFL  S02W55    1.8E+02 3.3E+02   0742

1830 +     2116   2116      2116  PAL  G   RBR  245       630
1830 +     2116   2116      2116  PAL  G   RBR  410       130
1830       2116   2116      2116  PAL  G   RBR  606       67
1830       2116   ////      2116  CUL  C   RSP  40-460    III/2

1840 +     2304   2314      2316  G12  5   XRA  1-8A      B9.8    4.6E-04   0742
1840       2309   2313      2316  G12  5   XFL  S07W56    2.0E+03 5.3E+03   0742
1840       2313   2313      2318  HOL  3   FLA  S06W52    SF      ERU       0742
1840       2313   ////      2315  PAL  C   RSP  025-180   V/1               0742
1840 +     2314   2314      2314  PAL  G   RBR  245       160               0742
1840 +     2314   2314      2314  PAL  G   RBR  410       1700              0742
1840 +     2314   ////      2315  CUL  C   RSP  18-500    III/3             0742

********************************************************************************
DESCRIPTION:
The first line is the filename.
The second line indicates the date/time the list was created.
The third line contains the date of the data. Each file (list) contains one UTC day.
Lines that begin with # are header lines.


Event - This is an arbitrary event number assigned by SWPC. It groups several
reports into a single event, as determined by the SWPC forecaster.
+     - A plus sign (+) after the event number indicates that more than one
report was received for this event, and the forecaster has selected
this report to represent those received.

Begin, Max, End  -
The UTC Time (Coordinate Universal Time, same as UT) of the beginning,
maximum, and end of the event as reported by the observing site.
"////" indicates a missing time.
The UTC day of the event's begin time is the UTC day of the list.
The UTC day of the maximum and/or end times may or may not be the same
as the begin time. Most solar events are several hours in duration. If
the maximum or end time is less than the begin time, then assume the
times are for the next UTC day. A single letter can proceed a Begin, Max,
or End time. A=after, B=before, U=uncertain. For example the begin time
A0146 means the event began after 0146.

The begin time of an x-ray event is defined as the first minute, in a
sequence of 4 minutes, of steep monotonic increase in 0.1-0.8 nm flux.
The x-ray event maximum is taken as the minute of the peak x-ray flux.
The end time is the time when the flux level decays to a point halfway
between the maximum flux and the pre-flare background level.

The begin time of an SXI flare (XFL) is minutes following the associated
x-ray event. The maximum time is the most intense period in the brightest
region of the SXI image. The end time is the last SXI image before the X-ray
event end time.

Obs   - The reporting observatory.
CUL - Culgoora, Australia
HOL - Holloman AFB, NM, USA    LEA - Learmonth, Australia
PAL - Palahua, HI, USA         RAM - Ramey AFB, PR, USA
SAG - Sagamore Hill, MA, USA   SVI - San Vito, Italy
Events from GOES satellites data show the SWPC Primary or Secondary
GOES spacecraft for the observatory, e.g. G12

(See the "Station Lists" directory in the "Welcome" directory for
more information.)

Q     - Quality
For radio bursts at fixed and sweep frequencies, and for storms, this
shows the quality of the data
C = Corrected report
G = Good
U = Uncertain
For optical flares, this shows the quality of observing conditions,
from 1 to 5, where:  1 = very poor and 5 = excellent

X-ray events and SXI flare have a quality of 5 (meaning excellent).

Type  - Type of report, see http://www.swpc.noaa.gov/info/glossary.html
BSL = Bright surge on the limb
DSF = Filament disappearance
EPL = Eruptive prominence on the limb
FIL = Filament
FLA = Optical flare observed in H-alpha
FOR = Forbush decrease (cosmic ray decrease))
GLE = Ground-level event (cosmic ray increase)
LPS = Loop prominence system
PCA = Polar cap absorption
RBR = Fixed-frequency radio burst
RNS = Radio Noise Storm
RSP = Sweep-frequency radio burst
SPY = Spray
XFL = SXI X-ray flare from GOES Solar X-ray Imager (SXI)
XRA = X-ray event from SWPC's Primary or Secondary GOES spacecraft

Loc/Frq - Location or frequency.
Location is in degrees latitude, north or south, and degrees longitude,
east or west, from central meridian. The location is the spherical,
heliographic coordinates of the solar region, as a distance in degrees
from a line extending from the solar equator (heliographic latitude),
and distance in degrees from a line extending from the north solar
rotational pole to the south solar rotational pole through the center
of the solar disk, as viewed from Earth (central meridian) in H-alpha.

Frequencies are in Mhz.

Particulars - Additional information from the report, chosen on the basis of
the report type.


XRA: X-ray Class
Class           x = peak flux in the 0.1 to 0.8 nm range
In mks system        In cgs system
Wm-2                erg cm-2 s-1
A                    x < 10-7               x < 10-4
B            10-7 <= x < 10-6       10-4 <= x < 10-3
C            10-6 <= x < 10-5       10-3 <= x < 10-2
M            10-5 <= x < 10-4       10-2 <= x < 10-1
X            10-4 <= x              10-1 <= x

Integrated flux from start to end, in joules m E-2.

FLA: Importance and brightness
Importance is the corrected area of the flare in heliospheric
square degrees at maximum brightness, observed in the H-alpha
line (656.3 nm).
S - Subflare (area < or =2.0 square degrees).
1 - Importance 1  ( 2.1 <= area <=  5.1 square degrees)
2 - Importance 2  ( 5.2 <= area <= 12.4 square degrees)
3 - Importance 3  (12.5 <= area <= 24.7 square degrees)
4 - Importance 4  (        area >= 24.8 square degrees)

Brightness is the relative maximum brightness of flare in H-alpha.
F - faint	N - normal	B - brilliant

Flare Characteristics

VWL = Visible in white light
UMB = Greater than or equal to 20 percent umbral coverage
PRB = Parallel ribbon
LPS = Associated Loop Prominence (LPS)
YSR = Y-shaped ribbon
ERU = Several eruptive centers
BPT = One or more brilliant points
HSS = Associated high speed dark or bright surge
DSD = Dark surge on the disk
DSF = Flare followed the disappearance of a solar filament in the
same region
BLU = H-alpha emission greater in the blue wing than in the red wing

XFL: maximum area (e.g., 1.6e+03) and max intensity (e.g., 1.5e+05).

RBR:
The peak value above pre-burst background of associated radio bursts
at frequencies 245, 410, 610, 1415, 2695, 4995, 8800 and 15400 MHz:
1 flux unit = 10-22 Wm-2 Hz-1

RSP:
Type/Intensity
Type  II: Slow drift burst
Type III: Fast drift burst
Type  IV: Broadband smooth continuum burst
Type   V: Brief continuum burst, generally associated with Type III bursts
Type  VI: Series of Type III bursts over a period of 10 minutes or more,
with no period longer than 30 minutes without activity
Type VII: Series of Type III and Type V bursts over a period of 10 minutes
or more, with no period longer than 30 minutes without activity
Type CTM: Broadband, long-lived, dekametric continuum

Intensity is a relative scale 1=Minor, 2=Significant, 3=Major

Shock speed in km/s


Reg# - The SWPC-assigned solar region number. The daily SWPC Solar Region
Summary report contains detailed information about solar regions.
see http://swpc.noaa.gov/ftpmenu/forecasts/SRS.html

For optical events, region numbers are assigned by the observatory.
Region numbers are assigned to X-ray events by SWPC staff.

For SXI flares, an SWPC algorithm finds the brightest area in the SXI
image and assigns the region number of the closest active solar region.
A region number is assigned to off-disk, west limb events if the region
recently rotated around the limb.



==========================================================================
==========================================================================
==========================================================================
USER NOTICES

==========================================================================
GOES 14 Became Primary Satellite for XRS data

December 1, 2009: GOES 14 is the Primary SWPC GOES Satellite for X-ray Events.
There is no Secondary X-ray Satellite at this time.

========================================================================
SEC Secondary GOES Spacecraft Change

June 19, 2006 -- At 1400UT, June 22, the SEC secondary GOES satellite
for magnetometer, X-ray, and electron measurements will change from
GOES 10 to GOES 11. GOES 12 will continue as the primary SEC GOES
satellite. For energetic proton measurements there is no change;
GOES 11 will remain the primary SEC GOES satellite and GOES 10 will
remain the secondary. SEC products that include magnetometer, X-ray,
and electron measurements from the secondary SWPC GOES satellite will
change at that time. See details at http://www.swpc.noaa.gov/goes.html

In the Edited Solar Events Lists, the Observatory field for events
from the GOES primary and secondary satellites will be G12 and G11.
===========================================================================

January 5, 2004 -- GOES Solar X-ray Imager (SXI) flare (XFL) reports were
added to the Edited Solar Events Lists. SXI flares from GOES-12 provide
valuable flare location and other information, especially when no optical
observations are available. SEC developed the SXI flare algorithm, triggered
by GOES X-ray events, which finds the brightest area in the latest SXI image
and assigns the region number of the closest active solar region. A region
number is assigned to off-disk, west limb events if the region recently
rotated around the limb. Near-real-time SXI images and a description of the
GOES SXI instrument are at http://swpc.noaa.gov/sxi/

========================================================================
September 8, 2003 -- The Filament disappearance (Type = DSF) reports now
have an associated location.  See description on Loc/Frq below.

========================================================================
GOES Satellite Changes

On May 15, 2003 GOES-12 became SEC's primary GOES satellite, and GOES 10
the backup. Event Lists show GOES 12 and GOES 10 XRA events.
See details at http://www.swpc.noaa.gov/GOES.html
Published in: on June 14, 2011 at 10:00 pm  Leave a Comment