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(meteorobs) Observation 03/01/2004 (early morning)



Hi!

The rising moon send me out in the last hours before dawn, which is 
not exactly the time of the day I prefer to get up, dress with 4 
pullovers and pairs of trousers and one overall and lie down in the 
freezing cold (about -10 dC). Nothing Quadrantid-like yet, but I 
still have hope for tonight (although I must say that I by far prefer 
a shower like the Perseids with a long period of nice activity to 
such a short-timed burst)... anyway, I need some sleep now.

Greetings

Daniel Gruen

----------

Day:03  Month:01  Year:2004
Begin:  2h56m   End:  4h47m

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@webdot de)

Showers:
.-------------------------------------
| Shw.|alpha|delta|veloc.|a.h|HR |eZHR|
|--------------------------*-------~--|
| DCA | 118d| +21d|sl-med|40d|1.2|3.16|
| COM | 193d| +10d|42km/s|45d|2.4|5.74|
| QUA | 230d| +49d|41km/s|52d| 0 |0.00|
| SPO | --- | --- | ---- | - |4.8| -- |
.-------------------------------------
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.|COM|DCA|QUA|SPO|
|..(UT).....|RA..dot dec.|..h.|...|.m..|M|N|M|N|M|N|M|N|
|---------------------------------------------------|
|02:56-04:47|193d|+48d|1.67|1.0|6.02|P|4|P|2|P|0|P|8|
 ---------------------------------------------------

Magnitude Distribution:
 -----------------------------------------------------
|Shower.| -3| -2| -1|+-0| +1| +2| +3| +4| +5|avg.| tot|
|-------|---|---|---|---|---|---|---|---|---|----|----|
| COM. .| - | - | - | - |1.0|1.5|1.0|0.5| - |2.25| 04 |
| DCA. .| - | - | - | - | - |1.0|1.0| - | - |2.50| 02 |
| SPO. .| - | - |0.5|1.5|1.0| - |1.5|2.5|1.0|2.50| 08 |
 -----------------------------------------------------

Train Distribution:
 -----------------------------
|dur.|5s|4s|3s|2s|1s|<*|no|tot|
|----|--|--|--|--|--|--|--|---|
|COM |--|--|--|--|-1|--| 3| 4 |
|DCA |--|--|--|--|-1|--| 1| 2 |
|SPO |--|--|--|--|-1|-1| 6| 8 |
 -----------------------------
 * 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|
|--|-----|----|---|---|-----|----|----|----|----|---|---|
| 1|03:24| 3.5|4-5|COM| --- | 241| 190| 176| 186| 3 | 2 |
| 2|03:31| 3.0| 5 |SPO| <1s | 102| 074| 081| 100| 2 | 2 |+
| 3|03:36| 0.0|1-2|SPO| --- | 173| 178| 186| 206| 2 | 2 |
| 4|03:41| 2.0| 4 |COM| 1.0s| 132| 158| 081| 099| 2 | 1 |
| 5|03:43| 2.5| 3 |COM| --- | 010| 028| 137| 186| 2 | 3 |
| 6|03:49| 5.0|2-3|SPO| --- | 093| 092| 147| 164| 2 | 3 |
| 7|03:55|-0.5|3-4|SPO| --- | 139| 201| 101| 070| 2 | 1 |
| 8|03:59| 1.0|4-5|COM| --- | 252| 155| 080| 093| 3 | 3 |*
| 9|04:09| 4.0| 2 |SPO| --- | 056| 044| 251| 239| 5 | 2 |
|10|04:14| 2.0|3-4|DCA| 1.0s| 054| 008| 146| 165| 2 | 1 |
|11|04:19| 4.0|2-3|SPO| --- | 097| 079| 099| 070| 2 | 2 |
|12|04:27| 1.0| 4 |SPO| 1.0s| 154| 078| 246| 246| 5 | 2 |
|13|04:40| 3.5| 2 |SPO| --- | 036| 028| 105| 086| 2 | 3 |
|14|04:43| 3.0|2-3|DCA| --- | 118| 000| 058| 057| 2 | 1 |~
 -------------------------------------------------------
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
* I didn't find the right star map, but as it lined up with
  the Lyra-near edge of the Hercules quadrangle and Vega, being
  twice this distance in lenght and ending near Vega, I could
  note this and reconstruct the meteor path at home.
  It is a possible COM, I can't really decide this.
+ There is a possibility for this one being a DCA, but the
  tremendous speed, the persistant train and the bad line-up
  with the radiant speak against it.
~ doesn't fit on the map, ends somewhere near Bootes, but the
  direction of the plot is correct

Comments: My first observation in 2004, hope it stays clear for
the Quadrantids tonight. No Quadrantid activity yet, which is
little surprising with a short peak shower like this. Coma
Berenicids showed quite a nice activity, so I managed to stay
out in the freezing cold (about -10 dC) nearly until astronomic
dawn at 5 UT, which is exactly what I plan to do tonight with
the Quadrantid peak at 6 UT.

Please note: d = degrees, all times in UT

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