(meteorobs) real-time Draconid flux display

Sat Oct 8 00:10:14 EDT 2011

For the next couple of days, I'll be manually reading the times of individual hits seen on the Speclab waterfall plot images, saved continuously from the VHF radar scatter radio audio.
Radio is tuned USB, slightly offset, to the Kickapoo USAF Space Radar transmitter at 216.983 Mhz.  Offset enough to place the base transmitter at ~700 Hz. 
Radar Hits for 7 October in OKC are as follows - in seconds of the UTC 24-hour day...
50

1282

5240

5911

6575

8935

8939

10780

11000

11068

11615

12685

13575

17340

17380

19520

23080

23773

26605

27790

28010

28025

28042

28100

28517

28922

29290

29425

31828

33055

33215

34300

36131

36137

36950

36982

37120

37905

39208

37565

37905

43070

43285

46715

46725

49215

50720

51355

53370

54330

54490

54535

54845

55195

56842

57670

62360

63385

63447

64010

64435

65190

65755

65770

66815

68758

68810

69017

69772

70725

70790

71322

72785

73417

73623

75340

77555

78132

80915

82042

82070

83078
--- On Thu, 10/6/11, Alex SV1NZX <sw1nzx at gmail.com> wrote:

From: Alex SV1NZX <sw1nzx at gmail.com>
Subject: Re: (meteorobs) real-time Draconid flux display
To: "Meteor science and meteor observing" <meteorobs at meteorobs.org>
Date: Thursday, October 6, 2011, 4:08 PM

Hello Sirko and all
Great tool and i hope the weather cooperates.Expecting clear skies on the weekend here in S. France - In Greece, where i was heading this weekend, its cloudy until tue-wed so anyone who was planning a trip to Thira (Santorini) may be disappointed..

Will be monitoring with meteor scatter on the 2m band
Clear skies all and good luck for the weekend !
Best regards,Alex (F/SV1NZX)

On Thu, Oct 6, 2011 at 10:42 PM, sirko at molau.de <sirko at molau.de> wrote:

Dear friends,

members of the IMO Video Meteor Network will try a unique experiment to

provide you with a REAL real-time Draconid flux display. In the next few

days, you can check for the current Draconid activity at

http://www.imonet.org/draconids/

without a delay of hours or days. Up to 20 cameras based in central

europe will try to upstream their observations, and the flux graph given

above will be updated every two minutes. If you leave the browser window

open, it will automatically refresh every five minutes.

Note, that this is HIGHLY EXPERIMENTAL, and there are many reasons why

the experiment may fail:

* most cameras are expecting poor weather, as the favourite weather

conditions we experienced in the last two weeks in Central Europe, are

over just in time :(

* the data are uploaded automatically as is (i.e. there is no manual

quality check) and the observing conditions are complicated with moonlit

skies. So a single camera that runs "mad" may waste the whole flux display

* the chosen parameter set may be suboptimal for the (unknown) Draconid

activity. Maybe there is too much averaging, maybe the graph has too

high resolution and shows strong scatter?

* the current VMO infrastructure is not intended to serve frequent web

accesses. We try to circumvent the problem by caching the graphs at the

above URL, but we have no idea whether this will really work out or

whether the whole systems crashed because of high load.

As we will try to observe the Draconids ourselve, there is no one who

will have a look at the system and fix any problem that may occur

Even given all these imponderables we believe the Draconids are worth a

trial, and want to offer you this service. At least, we hope to gain

experience with such a real-time flux monitor for future compaigns.

Knock on wood!

Sirko

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