(meteorobs) Fwd: [IMO-News] Leonids 2004 Nov 08/09

Lewis J. Gramer lgramer at upstream.net
Tue Nov 9 10:44:21 EST 2004


Forwarded without explicit permission.


Lew Gramer <owner-meteorobs at meteorobs.org>
Webmaster: http://www.meteorobs.org



-----Original Message-----
From: Juergen Rendtel [mailto:jrendtel at aip.de]
Sent: Tuesday, November 09, 2004 4:38 AM
To: imo-news at yahoogroups.com
Subject: [IMO-News] Leonids 2004 Nov 08/09



Dear All,

The prediction of possible early Leonids on 2004 Nov 08, 2330 UT,
by Jeremie was most interesting. However, the weather conditions
in Germany were not favourable. Some phone calls revealed that
most locations were cloudy. Ralf Koschack close to the Baltic Sea
had some cloud-free intervals, and I myself made a 100km-trip to
find clear skies. Our results:

Ralf Koschack (KOSRA)
observing from Lendershagen, Germany (12deg51'E, 54deg15'N)

Period    Field   Teff  F    lm   LEO  NTA  STA  SPO   TOT
  UT      RA  DEC h                N    N    N    N
2304-2324 105 +40 0.33  1.00 6.77  0    0    0    4     4
2324-2344 105 +40 0.33  1.00 6.77  0    1    0    2     3
2348-0105 105 +40 0.28 ca2.0 ca5.0 0    0    0    1     1
0115-0132 105 +40 0.28  1.00 6.75  0    0    0    4     4

Ralf noted 2 meteors radiating from a position north of the expected
radiant, but no Leonids from the predicted position


Jürgen Rendtel (RENJU)
observing from Meyenburg, Germany (12deg12'E, 53deg15'N)

Period    Field   Teff  F    lm   LEO  NTA  STA  SPO   TOT
  UT      RA  DEC h                N    N    N    N
2215-2230 110 +40 0.25  1.00 6.23  2    0    0    1     3
2230-2250 110 +40 0.33  1.00 6.23  0    0    0    4     4
2250-2310 100 +40 0.33  1.00 6.23  0    0    1    2     3
2310-2330 100 +40 0.33  1.00 6.20  1    0    1    4     6
2330-2350 110 +40 0.33  1.00 6.18  1    2    0    3     6
2350-0010 120 +35 0.33  1.00 6.18  1    0    0    2     3
0010-0040 120 +35 0.50  1.00 6.20  0    0    1    5     6

The meteors listed as Leonids are not necessarily shower meteors
because the apex region is at least partially aligned with the
Leonid radiant (see field center). The "Leonids" matched the
shower's radiant and angular velocity, but they may be easily
rather sporadic than Leonids.


The observational data suggest that there was no significant
activity in the period between 2215 UT and 0132 UT. The few
candidates may be regarded as an estimate for the "noise
level" of meteors coming from the expected radiant region.

Best wishes

Jürgen Rendtel
IMO President





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