ASTEROÏDAL OCCULTATION - REPORT FORM - EAON
EUROPEAN ASTEROIDAL OCCULTATION NETWORK

1) date: 2005.nov 10        star: TYC 836.1199        asteroid: 71 NIOBE
 
2) observer:  Bertrand  Thooris    (THO)
                    rijselstraat , 88
                    8930  Menen  Belgium
                    bertrand.thooris@astrolab.be 
 
3) station:  nearest city : IEPER
                observatoire ASTROLAB-IRIS II  , palingbeek
                longitude : 02°  54'  35.9"  E
                Latitude :  + 50°  49'  04.8"  N
                altitude : 41 m       ( GPS  - WGS84  )
 
4) timing of events : 
                Start:   5h  38min  32sec  UT
                       (1) D :  5h  39min  58sec  44
                            R :  5h  40min  07sec  15
                       (2) D :  5h  41min  43sec  38
                            R :  5h  41min  53sec  20
                       (3)  I :  5h  42min  09sec 30
                            S:  5h  42min  35sec  40
                End :  5h  54min  24sec   UT               zie Comments ...
 
5) instruments:    Lunette 200 / 2400mm        equatorial        motor : yes
                           
6) timing & recording : 
    CCTV ---> Cuno-timer ---> DCF-77(bip sonore)---> monitor TV ---> Video-recorder(time insert)
 
7) conditions:  transparency : very good
                        stability :     fair
                        wind :    2 beaufort ~ 
                        température :  indoor(dom) 9°c / outdoor  5°c 
                global quality :  médium ! 
                Minor planet :   VISIBLE -small Angular.Séparation , before and after possible occultation !
 
8) comments :    After a very clear night sky ......It is hard to believe but  , two transit  (1)and(2)  of small and light cirrus during the begin of observation ; and strong unstability during a schort time (3) .
    ----Antoniadi's scale : II for (1) and (2) .  IV for (3) -------
It is a very good observation for my , but i'm not 100% certain  occultation !!! . or........?.
 
Friendly to all 
    Bertrand