Observations of flashing Satellites [was :Re: April 14 obs

Kurt Jonckheere (kjonckheere@mail.unicall.be)
Tue, 14 Apr 1998 21:53:30 +0200 (MET DST)

hello all,

regularly people report observations of flashing satellites to SeeSat-L, 
just like Tony did yesterday :

>ETS-6 observed from (34.97S,138.6317E).
>Observed to be flashing at 1150UT peaks mag 2
>Timed 9 sets of 10 flashes from 1203-1209UT
>as 193.74 seconds + or - 0.037 secs
>TP = 19.374 + or - .004
>compare with 19.516 on April 8.53UT
>Not seen at 1220UT when cloud cleared
>Checked at 1335UT nothing seen
>Tony Beresford

The Belgian Working Group Satellites has been collecting observations of 
flashing periods for several years now.  
As different people can report the same thing in different ways, the best
is to collect observations in a standardized way.  Therefor the PPAS 
format was created.  
PPAS = A database collecting Photometric Periods of Artificial Satellites.

The PPAS format looks like (for the above obs) :
Cospar   Date     time UT    ob total acc  #of flash  remarks
ID       YY-MM-DD HH:MM:SS.s se time       fls period 
94- 56 A 98-04-14 12:06      AB  193.7 .04  10 19.374 +-.004, flsh peak mag +2

Thanks to this standardization, it is easier to create an archive and
to start with analizing the data.

We have provided a e-mail address to which you can send your observations.
In this way you make sure your observations are collected and made available
for everybody for analysis.
Please send your observations of flashing satellites, preferrably in the 
correct PPAS format to ppas@lists.satellite.eu.org

If you send your observations to SeeSat-L, please also send a copy to the
observations address.  In this way you are sure your observations will be
used for the updates to our PPAS archive.

You can find more information about the Belgian Working Group Satellites
and our PPAS archive starting from :
http://www2.plasma.mpe-garching.mpg.de/sat/satintro.html
and looking for BWGS and PPAS.

If you have any questions about the above or you want more information,
do not hesitate to contact me !

Greetings,


-------------------------------------------------------------------------
    Kurt Jonckheere (kjonckheere@unicall.be)  51.2 N  2.9 E  4m ASL 
   (Old accelerations : http://uc2.unicall.be/kjonckheere/index.htm) 
    observations collector for the Belgian Working Group Satellites: 
Send your observations of flashing satellites, preferrably in the correct
             PPAS format to ppas@lists.satellite.eu.org
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