Quadrantids 2019

Report newsworthy items here
Post Reply
pe1etr
Posts: 2150
Joined: 07 Oct 2014 00:40
Location: Near Lobatse, Botswana

Quadrantids 2019

Post by pe1etr »

Quadrantids peak 0220 UTC 4th Jan 2019.
Further maxima of radio meteors are possible 14 hours before and 9-12 hours after the main peak.

From International Meteor Organization 2019 Calendar.
www.imo.net

Peter
Blackpool

daveB
Posts: 1558
Joined: 07 Oct 2014 16:49

Re: Quadrantids 2019

Post by daveB »

Hopefully this meteor shower will give some results. It is circumpolar - and if I interpret the star charts correctly it is highest in the sky - almost overhead at around 6 am.
Location: Sittingbourne, Kent JO01ji
SDRPlay, AirSpyMini, RTL dongles, ST311, Yamaha TX930. 5 ele yagi 20ft agl - 70 deg. FM5 - 80 deg, 5.1 Yagi 16ft agl - 120 degFM5 -180 deg. Vert 3-ele Moxon - 80 deg. Shielded magnetic loop 0.1-200 MHz - 10 ft agl

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

I'm sure you will know this Dave and Peter, but for the benefit of others: Overhead is good for observation, but no good at all for radio. Meteors have to burn up on the horizon for maximum radio impact.

I plan to record as much of the event as possible, hard drive space permitting. i.e. depending on how many medium wave files I have recorded. This time, I will beam south-east and horizontally, instead of my usual vertical / north-east.

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

I have managed to free up some space on my hard drive so I can record some overnight Quadrantids, but I am hoping there won't be a problem. Medium wave is currently showing better conditions and so I will be recording from my Perseus receiver at the same time - to the same hard drive. I hope this won't be a mistake. I will run a trial this afternoon to see.

The reason most of my hard drives are full is because they still have lots of Es recordings and I do not want to delete them until I have checked them.

I wondered if anybody else had tried recording two SDRs to the same hard drive?

satnipper
Posts: 1251
Joined: 03 Oct 2014 12:58
Location: Western Europe

Re: Quadrantids 2019

Post by satnipper »

I think you will run into issues. SDR apps write a lot of data to the disk and there will be enormous contention between the two apps. No doubt memory buffering will come into play - how much memory do you have?

Can't each SDR record to a different disk?

Stuart

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

I don't really have any spare discs. Only a 1TB for both purposes free. My other discs are as good as full.

I have 8GB memory. Jaguar runs happily at less than 1% CPU usage when recording. 13/14% when writing AUTOSCAN files.

I'm sure I've done this before. Can't remember what happened. I will be able to run the test in a n hour or two.

User avatar
Patrick73
Posts: 316
Joined: 22 Mar 2015 12:36
Location: french Alps, JN35am

Re: Quadrantids 2019

Post by Patrick73 »

1730z, I've been sitting on 143.050 (radar Graves) for half an hour : not a single ping ...
Patrick
Main interests : NDB, MW & FM DX'ing
REU Editor http://www.classaxe.com/dx/ndb/reu

User avatar
Chris Howles
Posts: 494
Joined: 06 Oct 2014 18:54
Location: Lichfield, Staffordshire UK.

Re: Quadrantids 2019

Post by Chris Howles »

BOB very pingy here at the mo, only short ones but lots of em.

EDIT - just IDed SR P1 87.9
Denon TU-1500RD X4, Rotel RT-955, Icom IC-R7100, Tescun PL390, Auna DAB, D100 TVDX conv
Homebrew 6 el modified Triax FM, Homebrew 3 el OIRT, vertical FM 3 el, FM dipoles facing SW and SSE, 3 el DAB
RDS Spy

daveB
Posts: 1558
Joined: 07 Oct 2014 16:49

Re: Quadrantids 2019

Post by daveB »

satnipper wrote:
03 Jan 2019 12:55
I think you will run into issues. SDR apps write a lot of data to the disk and there will be enormous contention between the two apps. No doubt memory buffering will come into play - how much memory do you have?

Can't each SDR record to a different disk?

Stuart
Taking the 2nd point first. That's how I run my set-up - each SDR has it's own 2Tb drive. That allows me the flexibility to record from two directions using separate aerials, or low band and high band at once. Or record from one drive whilst playing back recordings from the other drive, which is useful if there is no opening - but you are hoping to catch one.

As for recording two SDRs to one external drive. It seems to work with no dropped buffers for my PC (i-4460 / 8 Gb ram USB 3.) external drive). SDR 1 is an RSP1A at 8 Mbps sample rate - the other an Airspy mini at 6 Mmbps sample rate.

As for the Quarantids - lots of short pings from 14:30 to 18:30 on the 3rd beaming N-E - from Sweden and Denmark. Then from 1 am to 5 am on the 4th it was very lively with lots of short bursts at more than one a minute - from the East. A fair number throughout at RDS levels. Next recording session will be from 1 pm to 5 pm today (4th).
Location: Sittingbourne, Kent JO01ji
SDRPlay, AirSpyMini, RTL dongles, ST311, Yamaha TX930. 5 ele yagi 20ft agl - 70 deg. FM5 - 80 deg, 5.1 Yagi 16ft agl - 120 degFM5 -180 deg. Vert 3-ele Moxon - 80 deg. Shielded magnetic loop 0.1-200 MHz - 10 ft agl

Tim Bucknall
Posts: 3262
Joined: 01 Oct 2014 14:55
Location: Now stranded in Congleton
Contact:

Re: Quadrantids 2019

Post by Tim Bucknall »

heavy activity at 5am
better than i expected for an overhead shower
i've got 24 hours to play back at some point

some good trains just now so i started recording again but its dwindled to nothing
Rx: Burkhardt Reuter RDR54D1, Elad FDM-S2, Airspy HF+ w/ HS Publications 6 Element R3 -R5 Yagi on rooftop rotator V/H polarization options. Pira P275 RDS analyser

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

Sounds good.

Looks like I successfully recorded both MW and FM overnight, but I did manage to free up some space and record to separate drives, just in case.

Now, finding the time to listen. Hmm. Lots to do today, so I will set SDR Radio's Data File Analyser to go through the recordings while I am getting on with other stuff. I should be able to start compiling a log later, but it may take me a day or two.

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

The first of five hour long files has been scanned. Lots of good pings and several ten or so second bursts. Should be a decent log.

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

It looks like MS activity declined as the morning went on. I recorded between 03:00 and 09:00. My 03:00-04:00 and 04:00-05:00 files revealed a good level of activity, but my 05:00-06:00 files are considerably quieter.

User avatar
John Faulkner, Skegness
Posts: 7041
Joined: 19 Sep 2014 15:55
Location: Skegness, Lincolnshire. JO03dd
Contact:

Re: Quadrantids 2019

Post by John Faulkner, Skegness »

I am half way through my first session. Logs here: http://www.fmlist.org/fm_logmap.php?dat ... &omid=2404 I am wondering if I can be bothered with more of this. It's the same stations, over and over again. Or is it me. Perhaps I am just turning into an impatient old git.

Post Reply

Return to “News”