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(meteorobs) =?iso-8859-1?Q?Fwd:_=5BDaniel_Gr=FCn=5D_My_first_plotting_session!?=
>From: Daniel =?iso-8859-15?q?Gr=FCn?= <d.gruen@tiscali-dsldot de>
>Subject: My first plotting session!
>Date: Fri, 21 Feb 2003 20:30:04 +0100
Hi!
Yesterday night I went out into the winter night for my first plotting=20
session. It didn't seem hard at all to me (unexpectedly), but there=20
are still some questions left:
1) Whom should the Brno maps with meteor plots be sent to? I guess=20
Juergen Rendtel is the right person for German meteor observers and=20
the adress from the IMO homepage is correct. Would it also be=20
possible to send in starting and ending coordinates of the meteors=20
only and keep the maps (so I don't have to make so many copys etc.)?
2) Would it be a bad thing if I use one map for several observations?=20
There are currently four plots on one map, should I use a new copy=20
for my next observation or is it possible to use it some more often=20
(maybe a maximum number of meteors?)?
3) Can anyone give me some advice on mesauring the angular speed of a=20
meteor? I feel quite unsure about what is meant and how it should be=20
measured. Are my plottings valueable without these data at all?
Thank you in advance
Daniel Gruen
---
Day:20 Month:02 Year:2003 Begin: 19h46m End: 20h56m
Location long. E9=B026'20" latit. N48=B051'55"
Site: Winnenden-Birkmannsweiler Country: Germany
Observer: Daniel GRUEN IMO code: GRUDA
Showers:
-----------------------------------
| Shw |alpha|delta| Shw |alpha|delta|
|------------------------------------
| DLE | 168=B0| +16=B0| VIR | 168=B0| +05=B0|
|-----------------------------------
| SPO | --- | --- |
-----------------
Periods:
----------------------------------------------------
| Period |Field |Teff| F | lm | DLE| VIR| SPO|
| (UT) |RA Dec | h | | m |M| N|M| N|M| N|
|----------------------------------------------------|
| 19:46-20:56 |135=B0|+48=B0|1.08|1.0|5.28|P| 0|P| 0|P| 4|
----------------------------------------------------
Magnitude Distribution:
-----------------------------------------------
|Shower| -3| -2| -1| 0| +1| +2| +3| +4| +5| tot|
|------|---|---|---|---|---|---|---|---|---|----|
| SPO | | | |1.0| |1.5|1.0|0.5| | 4 |
-----------------------------------------------
Train Distribution:
-----------------
|dur.|1s|<*|no|tot|
|----|--|--|--|---|
|SPO | | | 4| 4|
-----------------
* these trains persisted only for a few tenth of a second
Meteor Data:
------------------------------------------
|No.| Time|Shw|Mag|Train|Color|Acc.|Map No.|
|---|-----|---|---|-----|-----|----|-------|
| 1|19:52|SPO|2.5| | | 1 | 2 |
| 2|20:41|SPO|2.0| | | 2 | 2 |
| 3|20:43|SPO|0.0| | | 2 | 2 |
| 4|29:49|SPO|3.5| | | 3 | 2 |
------------------------------------------
Comments:
My first plotting session! It worked out pretty fine and was easier=20
than I expected. The only thing I don't feel confident about is=20
measuring the angular speed of a meteor. I hope my data is useful=20
without that information.
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