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(meteorobs) Re: Observation 31/07/2003
Daniel and All,
Nice set of observations. It is obvious you put a lot of work into
summarizing each session!
When sharing your data with the IMO would you please direct it to
visual@imodot net
Thanks!
Bob Lunsford
----- Original Message -----
From: "Daniel Gruen" <d.gruen@tiscali-dsldot de>
To: "Meteorobs" <meteorobs@atmob.org>
Cc: <president@imodot net>; <holger.kadau@gmxdot de>
Sent: Friday, August 01, 2003 9:29 AM
Subject: (meteorobs) Observation 31/07/2003
> Hi!
>
> This is my report from last night. After too many clouds and too
> little sleep the night before, I went out again with a friend.
>
> Greetings
>
> Daniel Gruen
>
> -----
>
> Day:31-01 Month:07-08 Year:2003
> Begin: 31.07., 21h57m
> End: 1.08., 0h48m
>
> Location long. E9d26'20" latit. N48d51'55"
>
> Site: Winnenden-Birkmannsweiler, near Stuttgart
> Country: Germany
>
> Observer: Daniel GRUEN IMO code: GRUDA
> Any questions? Mail me (daniel_gruen@webdot de)
>
> Showers:
> -----------------------------------
> | Shw |alpha|delta| Shw |alpha|delta|
> |-----------------------------------|
> | CAP | 305d| -11d| ACY | 310d| +49d|
> |-----------------------------------|
> | PER | 25d| +54d| NDA | 325d| -08d|
> |-----------------------------------|
> | SIA | 325d| -17d| SDA | 339d| -17d|
> |-----------------------------------
> | SPO | --- | --- |
> -----------------
>
> Periods:
> -------------------------------------------------------------------
> | Period |Field |Teff| F | lm |CAP|ACY|NDA|SIA|SDA|PER|SPO|SPO|
> | (UT) |RA Dec | h | | m |M|N|M|N|M|N|M|N|M|N|M|N|M|N|M|N|
> |-----------------------------------------------------------------*-|
> |21:57-22:17|310d|+45d|0.31|1.1|5.07|P|0|P|0|P|0|P|0|P|1|C|0|P|1|C|0|
> |-------------------------------------------------------------------|
> |22:37-23:45|320d|+39d|1.01| 1 |5.07|P|2|P|0|P|2|P|0|P|1|C|3|P|2|C|2|
> |-------------------------------------------------------------------|
> |23:58- 0:48|345d|+43d|0.73| 1 |4.83|P|0|P|0|P|1|P|0|P|2|C|4|P|4|C|0|
> -------------------------------------------------------------------
> * these are the meteors I didn't plot, either because there were
> too many at a time; they might as well be shower meteors
>
> Magnitude Distribution:
> 1st period:
> -------------------------------------------
> |Shower| -2| -1| 0| +1| +2| +3| +4| +5| tot|
> |------|---|---|---|---|---|---|---|---|----|
> | SDA | | |0.5|0.5| | | | | 1 |
> | SPO | | | | | |0.5|0.5| | 1 |
> -------------------------------------------
> 2nd period:
> -------------------------------------------
> |Shower| -2| -1| 0| +1| +2| +3| +4| +5| tot|
> |------|---|---|---|---|---|---|---|---|----|
> | CAP | |0.5|0.5| | | |1.0| | 2 |
> | NDA | | | | | |1.0|1.0| | 2 |
> | SDA | | | | | | |1.0| | 1 |
> | PER | | | | |1.0|2.0| | | 3 |
> | SPO | | |0.5|1.5|0.5|1.0|0.5| | 4 |
> -------------------------------------------
> 3rd period:
> -------------------------------------------
> |Shower| -2| -1| 0| +1| +2| +3| +4| +5| tot|
> |------|---|---|---|---|---|---|---|---|----|
> | NDA | | | | | |1.0| | | 1 |
> | SDA | | | | |0.5|1.5| | | 2 |
> | PER | | | |1.0|0.5|2.0|0.5| | 4 |
> | SPO | | | |0.5|1.0|1.5|1.0| | 4 |
> -------------------------------------------
> total:
> -------------------------------------------
> |Shower| -2| -1| 0| +1| +2| +3| +4| +5| tot|
> |------|---|---|---|---|---|---|---|---|----|
> | CAP | |0.5|0.5| | | |1.0| | 2 |
> | NDA | | | | | |2.0|1.0| | 3 |
> | SDA | | |0.5|0.5|0.5|1.5|1.0| | 4 |
> | PER | | | |1.0|1.5|4.0|0.5| | 7 |
> | SPO | | |0.5|2.0|1.5|3.0|2.0| | 9 |
> -------------------------------------------
>
> Train Distribution:
> 1st Period:
> --------------------
> |dur.|2s|1s|<*|no|tot|
> |----|--|--|--|--|---|
> |SDA | | | | 1| 1|
> |SPO | | | | 1| 1|
> --------------------
> 2nd Period:
> ----------------------
> |dur.| 2s| 1s|<*|no|tot|
> |----|---|---|--|--|---|
> |CAP | | | | 2| 2|
> |NDA | | | | 2| 2|
> |SDA | | | | 1| 1|
> |PER | | | 1| 2| 3|
> |SPO |0.5|0.5| | 3| 4|
> ----------------------
> 3rd Period:
> --------------------
> |dur.|2s|1s|<*|no|tot|
> |----|--|--|--|--|---|
> |NDA | | | | 1| 1|
> |SDA | | | | 2| 2|
> |PER | | | | 4| 4|
> |SPO | | | | 4| 4|
> --------------------
> total:
> ----------------------
> |dur.| 2s| 1s|<*|no|tot|
> |----|---|---|--|--|---|
> |CAP | | | | 2| 2|
> |NDA | | | | 3| 3|
> |SDA | | | | 4| 4|
> |PER | | | 1| 6| 7|
> |SPO |0.5|0.5| | 8| 9|
> ----------------------
>
> * 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|
> |---|-----|----|---|---|-----|----|----|----|----|---|---|
> |122|22:10| 3.5| 2 |SPO| - | 155| 137| 88| 64| 3 | 3 |
> |123|22:16| 0.5|2-3|SDA| - | 329| 290| 34| 75| 1 | 2 |
> |---|-----|----|---|---|-----|----|----|----|----|---|---|
> |124|22:41| 2.5| |SPO| - | | | | | | |
> |125|22:41| 3.5| |SPO| - | | | | | | |
> |126|22:41| 4.0|3-4|NDA| - | 219| 243| 186| 207| 6 | 3 |*
> |127|22:45| 3.0|4-5|PER| - | | | | | | |+
> |128|22:49| 1.0|1-2|SPO|1.5s | 218| 250| 88| 74| 1 | 2 |
> |129|22:58|-0.5|1-2|CAP| - | 70| 79| 131| 149| 3 | 3 |
> |130|23:07| 4.0|1-2|CAP| - | 209| 203| 198| 218| 6 | 1 |
> |131|23:20| 4.0|3-4|SDA| - | 166| 190| 222| 278| 6 | 3 |
> |132|23:28| 2.5| 3 |PER| <1s | | | | | | |
> |133|23:31| 2.5| 4 |PER| - | | | | | | |
> |134|23:35| 3.0|2-3|NDA| - | 91| 63| 217| 252| 6 | 3 |
> |135|23:41| 0.5| 3 |SPO| - | 148| 111| 184| 184| 6 | 2 |
> |---|-----|----|---|---|-----|----|----|----|----|---|---|
> |136| 0:00| 1.0| 4 |PER| - | | | | | | |
> |137| 0:06| 2.5| 3 |PER| - | | | | | | |~
> |138| 0:06| 3.5| 3 |PER| - | | | | | | |~
> |139| 0:13| 3.5|3-4|SPO| - | 277| 306| 109| 91| 1 | 2 |+
> |140| 0:19| 3.0| 3 |SDA| - | 344| 281| 32| 83| 1 | 2 |
> |141| 0:22| 3.5| 5 |SPO| - | 186| 218| 322| 332| 6 | 2 |
> |142| 0:26| 2.5| 3 |SDA| - | 178| 135| 206| 245| 1 | 3 |
> |143| 0:30| 1.5|2-3|SPO| - | 184| 170| 123| 101| 1 | 1 |
> |144| 0:38| 3.0|4-5|PER| - | | | | | | |
> |145| 0:40| 3.0|4-5|NDA| - | 339| 294| 83| 98| 1 | 2 |
> |146| 0:45| 2.5|3-4|SPO| - | 249| 285| 97| 59| 1 | 2 |
> --------------------------------------------------------
> 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
> * it's not so clear wheather this is a NDA or a SIA
> + the time is only an estimate, I forgot to look on my watch
> ~ almost with the same angle from the radiant
>
> Comments: Against my plans from the last observation, I
> plotted again last night and activity was not too high to
> do so. Combined with a cassette recorder, the dead time was
> still bearable. #137 and #138 are what I call "twin meteors",
> nearly at the same time with nearly the same angle from the
> same radiant. I have often noticed such events with the
> Perseids.
>
> Please note: d = degrees
>
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