(meteorobs) Observation 08/08/2004

Daniel Gruen daniel_gruen at web.de
Mon Aug 9 06:11:37 EDT 2004


Hi!

Here's my observation from last night.

Daniel

__________

Day:08  Month:08  Year:2004
Begin: 21h21m   End: 23h13m

Location  long. E9d26'25"  latit. N48d51'57"

Site: Winnenden-Birkmannsweiler, near Stuttgart
Country: Germany

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

Showers:
.-------------------------------------
| Shw.|alpha|delta|veloc.|a.h|HR |eZHR|
|--------------------------*-------~--|
| KCG | 284d| +58d|25km/s|76d|0.7|2.52|
| CAP | 316d| -06d|23km/s|34d| 0 |0.00| 
| SIA | 337d| -14d|34km/s|20d|0.7|7.16|
| NDA | 334d| -05d|42km/s|29d|1.4|10.1|
| SDA | 348d| -13d|41km/s|16d| 0 |0.00|
| PER | 041d| +58d|59km/s|35d|2.8|17.1|
| SPO | --- | --- | ---- | - |0.7| -- |
.-------------------------------------
these figures are taken from the current
AMS Meteor Activity Outlook by Robert Lunsford
* average radiant height (est.)
~ estimated with r=3.0, deltalm=0.0 and est. radiant height

Periods:
 ----------------------------------------------------------------
| Period....|Field....|Teff|.F..|.lm.|KCG|CAP|SIA|NDA|SDA|PER|SPO|
|..(UT).....|RA...Dec.|..h.|....|.m..|M|N|M|N|M|N|M|N|M|N|M|N|M|N|
|----------------------------------------------------------------|
|21:21-22:05|327d|+49d|0.67|1.00|5.30|P|-|P|-|P|-|P|2|P|-|P|2|P|1|
|22:24-23:13|338d|+50d|0.77|1.00|5.40|P|1|P|-|P|1|P|-|P|-|P|2|P|-|
 ----------------------------------------------------------------
 
Magnitude Distribution:
 -----------------------------------------------------
|Shower.| -3| -2| -1|+-0| +1| +2| +3| +4| +5|avg.| tot|
|-------|---|---|---|---|---|---|---|---|---|----|----|
| KCG   | - | - | - | - | - | - |1.0| - | - |3.00| 01 |
| SIA   | - | - | - | - | - | - | - |1.0| - |4.00| 01 |
| NDA   | - | - | - | - | - |0.5|1.0|0.5| - |3.00| 02 |
| PER   | - | - | - | - | - |1.0|1.0|2.0| - |3.25| 04 |
| SPO   | - | - |0.5|0.5| - | - | - | - | - |-1.5| 01 |
 -----------------------------------------------------

Train Distribution:
 -----------------------------
|dur.|5s|4s|3s|2s|1s|<*|no|tot|
|----|--|--|--|--|--|--|--|---|
|KCG |--|--|--|--|--|--| 1| 1 |
|SIA |--|--|--|--|--|--| 1| 1 |
|NDA |--|--|--|--|--|--| 2| 2 |
|PER |--|--|--|--|--| 1| 3| 4 |
|SPO |--|--|--|--|--| 1| 0| 1 |
 -----------------------------
 * these trains persisted only for a few tenth of a second

Meteor Data:
(caution: I changed the order of the coordinates from
XBeg-YBeg-XEnd-YEnd to XBeg-XEnd-YBeg-YEnd)
 -------------------------------------------------------
|No| Time| Mag|Vel|Shw|Train|XBeg|XEnd|YBeg|YEnd|Map|Acc|
|--|-----|----|---|---|-----|----|----|----|----|---|---|
|56|21:21| 3.5| 3 |NDA| --- | 167| 164| 215| 179| 2 | 3 |*
|57|21:37| 3.0| 3 |PER| --- | 163| 185| 181| 233| 1 | 1 |
|58|21:41| 4.0| 3 |PER| --- | 207| 247| 103| 062| 1 | 2 |
|59|21:50|-1.5| 2 |SPO| 0.5s| 065| 050| 116| 136| 3 | 1 | 
|60|21:54| 2.5| 4 |NDA| --- | 162| 224| 095| 118| 3 | 2 |
|--|-----|----|---|---|-----|----|----|----|----|---|---|
|61|22:38| 3.0| 3 |KCG| --- | 187| 166| 137| 110| 1 | 3 |
|62|22:45| 4.0| 4 |SIA| --- | 328| 292| 113| 147| 1 | 3 |+
|63|22:52| 4.0| 4 |PER| --- | 206| 235| 101| 074| 1 | 2 |
|64|23:03| 2.0| 2 |PER| 0.5s| 176| 188| 093| 069| 1 | 2 |
 -------------------------------------------------------
enumeration starts in the 02/01/2004 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

* shower association very vague (had to replot it over 3 maps)
+ NDA also possible

Comments: The most remarkable meteor of course occured during the
break. I was just sipping on my cup of warm tea, when a very bright
meteor made his way through Cepheus and Ursa Minor down to the 
Big Dipper. It had started high overhead and therefore an extremely 
long path, about 40 degrees along which it travelled really fast.
It showed variations in its magnitude, maybe between -2 and (at its
brightest when it broke up at the end) -6 mag. Parts of the after-
glowing train could be seen for about 5 seconds. This one alone would
have made it worth going out that night. 

Please note: d = degrees, all times in UT


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