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(meteorobs) Ursid obs LANMA (Europe) 21-22 dec 2000



Folks,

Nice Ursid rates over Europe last night. I observed from Voorschoten (the
Netherlands) from 3:22 UTC untill twilight at 6:15 UTC with Lm at +6.3 and a
mild frosty -2.5 C. Table with data below.

Ursids were well recognizable, but not out of the ordinary. Towards the end
of the night, perhaps some indication of slightly rising rates. A quick very
preliminary calculation with my data gives ZHR's in the order of ~10 while
starting observ ations, and ZHR ~20 when ending observations. I plotted
during the larger part of the night but switched to using tape recorder only
at 5:15 UTC. Best meteor was a yellow -2 Ursid at 4:38:48 UTC.

- Marco Langbroek
   Dutch Meteor Society (DMS)

--------------------------------------------------
Obs: Marco Langbroek   -    LANMA
Loc.: Voorschoten, Netherlands, 52d 07' N, 4d 28' E
Date: December 21-22, 2000

UTC          Teff    Lm   Urs   Spo
3:22-3:45   0.35   6.3    2       4
3:45-4:15   0.47   6.3    4       3
4:15-4:45   0.43   6.3    5       7
4:45-5:15   0.43   6.3    8       4
5:15-5:45   0.50   6.2    9       8
5:45-6:15   0.50   6.1    8       6

TOTAL:    2.68  <6.3>  36    32


strm/mag      -2 //    +1   +2   +3   +4   +5    <m>
Ursids            1        1     3    19    11    1     <3.08>
Sporadics       0        0     9    12    11    0    <3.06>
-----------------------------------------------

---
Marco Langbroek                    private: marco.langbroek@wanadoodot nl
Leiden University                     work: m.langbroek@arch.leidenunivdot nl
Faculty of Archaeology
P.O. Box 9515
NL-2300 RA Leiden
The Netherlands

"What seest thou else
  In the dark backward and abysm of time?"

William Shakespeare: The Tempest act I scene 2
---




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