ASTEROIDAL OCCULTATION - REPORT FORM - EAON
EUROPEAN ASTEROIDAL OCCULTATION NETWORK
 
1. DATE: 23 ottobre 2017     STAR:  TYC  0638-00660-1   ASTEROID:  (154) Bertha

2. OBSERVER
   Name:    Andrea MANNA     Abr.: MAA
   Phone: 0041 91 859 06 61
   Address: via alla Motta – Cugnasco (Switzerland)
   Email: andreamanna@sunrise.ch    andrea.manna@laregione.ch

3. OBSERVING STATION
   Station:         Cugnasco  (c.Ti  Switzerland)   
   Nearest city: Locarno
   Longitude:    08d 55m 13.8s  E 
   Latitude:       46d 10m 35.5s   N
   Altitude:        240m
                         (Google Earth)       

4. TIMING OF EVENTS
   Occultation recorded: POSITIVE
   Type of event:
   “S”tart observation:    02: 25: 50    UT    
   “E”nd observation:      02: 32: 26  
   
   “D”isappearance:        02: 29: 48.76       +/- 0.02       UT        (with Dangl correction)
   “R”eappearance:         02: 30: 00.01       +/- 0.02
    
   Duration:                     11. 25  sec   +/- 0.04                
      
   Personal Equation Substracted: 
    Event Time (UTC)       P.E.      Accuracy + Comments
    code: HH:MM:SS.ss    S.ss
    -S :    
    -E :  
  
5. TELESCOPE
   Type:  Schmidt-Cassegrain
   Aperture: 200mm
   Focal length:  600mm  (with focal reducer)
   Mount: Equatorial 
   Motor drive: Yes

6. TIMING & RECORDING
   Timekeeping: GPS 1PPS (US Global Sat EM-406A)
   Videocamera Watec Wat-910HX/RC
   Shutter mode= 1/50s, Gain=39, Gamma=1.00
   Mode of recording 
   Device of recording:  IOTA-VTI, v.1.1.42


7. OBSERVING CONDITIONS
   Atmospheric transparency: 
   Wind: 
   Star image stability:
   Temperature: 
   Minor Planet Visible: Yes

8. ADDITIONAL COMMENTS