(meteorobs) Observation report 19/12/2007

Daniel Grün daniel_gruen at web.de
Sat Dec 22 13:11:55 EST 2007


Hi,

before the show begins tonight, a short report from my last observation as of 
19/12/2007. One of the plots can be traced back to the URS radiant quite 
well.
Wishing you clear skies for the rest of the evening (here it doesn't look all 
too promising, given the combination of haze and a close-to full moon)...

Daniel

Day:19 Month:12 Year:2007
Begin: 21h47m   End: 22h40m

Location  long. E11d34'02"  latit. N48d10'26"

Site: Munich, on top of a high-rise building
Country: Germany

Observer: Daniel GRUEN   IMO code: GRUDA
Any questions? Mail me (daniel_gruen at web.de)

Showers:
.------------------------
|.Shw.|alpha|delta|veloc.|
|------------------------|
|.ANT.|..97d|.+23d|30km/s|
|.MON.|.105d|.+08d|42km/s|
|.GEM.|.114d|.+33d|35km/s|
|.HYD.|.131d|.+01d|58km/s|
|.COM.|.173d|.+26d|65km/s|
|.URS.|.217d|.+76d|33km/s|
|.SPO.|.---.|.---.|.----.|
.------------------------
these figures are taken from the current
AMS Meteor Activity Outlook by Robert Lunsford

Periods:
.---------------------------------------------------------------
|.Period....|Field....|Teff|.F.|.lm.|ANT|MON|GEM|HYD|COM|URS|SPO|
|..(UT).....|RA...Dec.|..h.|...|.m..|M|N|M|N|M|N|M|N|M|N|M|N|M|N|
|---------------------------------------------------------------|
|21:47-22:40|095d|+40d|0.82|1.0|4.90|P|1|P|0|P|0|P|0|P|0|P|1|P|2|
.---------------------------------------------------------------

Magnitude Distribution:
.-----------------------------------------------------.
|Shower.|.-3|.-2|.-1|..0|.+1|.+2|.+3|.+4|.+5|avg.|.tot|
|-------|---|---|---|---|---|---|---|---|---|----|----|
|.URS...|...|...|...|...|...|1.0|...|...|...|2.00|..1.|
|.ANT...|...|...|...|...|...|0.5|0.5|...|...|2.50|..1.|
|.SPO...|...|...|...|...|0.5|0.5|...|1.0|...|2.75|..2.|
.-----------------------------------------------------.

Train Distribution:
.-----------------------------.
|dur.|5s|4s|3s|2s|1s|<*|no|tot|
|----|--|--|--|--|--|--|--|---|
|URS.|..|..|..|..|..|..|.1|.1.|
|ANT.|..|..|..|..|..|..|.1|.1.|
|SPO.|..|..|..|..|.1|..|.1|.2.|
.-----------------------------.
 * these trains persisted only for a few tenth of a second

Meteor Data:
.--------------------------------------------------------.
|No.|.Time|.Mag|Vel|Shw|Train|XBeg|XEnd|YBeg|YEnd|Map|Acc|
|---|-----|----|---|---|-----|----|----|----|----|---|---|
|001|21:52|.1.5|.3.|SPO|..1s.|.265|.291|.220|.192|.2.|.3.|~
|002|21:55|.4.0|.4.|SPO|.---.|.110|.061|.284|.321|.4.|.3.|
|003|21:56|.2.5|.2.|ANT|.---.|.126|.108|.295|.363|.4.|.3.|*
|004|22:18|.2.0|.4.|URS|.---.|.167|.174|.085|.032|.2.|.3.|+
.--------------------------------------------------------.
enumeration starts in the 20/02/2003 session
all coordinates in mm from the lower left corner of the map
velocity scale:
1 - very slow; 2 - slow; 3 - medium; 4 - fast; 5 - very fast
* plot goes out of map boundary, but this is correct
+ hits the URS radiant quite well
~ observation of this meteor was sponsored by / dedicated to
  Beate Weiss / Martin Unglaub (www.sternschnuppenzaehler.de)

Comments: Kind of crisp conditions with cold, clear skies
even from Munich. Moon disturbing, apart from the cold that
sent me in again after this hour.

Please note: d = degrees, all times in UT



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