ASTEROIDAL OCCULTATION - REPORT FORM


EAON & IOTA/ES 

1. DATE: 2022 Jul 25  STAR:  UCAC4 560-123556  ASTEROID: (105808) 2000 SZ135 	

2. OBSERVER: 

   Name: Marcin Filipek  Abbr: FIM 
   Adress: 32-048 Jerzmanowice, Poland
   Phone: +48 502 084 115
  
3. OBSERVING STATION: Jerzmanowice

   Nearest city: Krakow, Poland
   Station: Latitude: 50° 12 43.7 N 
            Longitude: 19° 45 02.6 E 
   Altitude: 450 m
   WGS84, GPS meas  

4. TIMING OF EVENTS OCCULTATION RECORDED : P O S I T I V E

Event code
	S: observation Start   I: Interruption start
	D: Disappearance       J: Interruption end
	R: Reappearance        B: Blink   F: Flash
	E: observation End     O: Other (specify)
  
                                              
  Event   Time (UT)    P.E.   Acc.   
  Code   HH:MM:SS.ss   S.ss   S.ss

    S  -  20:30:00.00  
    D  -  10:30:59.84  +/- 0.15s
    R  -  20:31:01.64  +/- 0.15s
    E  -  22:32:01.00       
  
        Duration : 1.8 s +/-0.3
        Mid-event : 20:31:00.24 +/-0.3s

  
5. TELESCOPE 

   Type: Newton   
   Aperture: 250 mm 
   Focal length: 1000 mm
   Mount: Equatorial, Sky-Watcher EQ6
   Motor drive: Yes

6. TIMING & RECORDING

   Time source: SNTP (NetTime 3.20 Alpha3) 
        Sensor: ZWO ASI 178MC
        Recording:  exposure 300 ms  
        Recording device: laptop HP, SharpCap 4.0 (Windows 10)
        Time  insertion: laptop clock corrected flashing LED GPS-inserter


7. OBSERVING CONDITIONS

   Atmospheric transparency: good   
   Wind: no
   Star image stability: good
   Temperature: 20 deg Celsius
   Minor planet visible: no
   Event in altitude: 48° 


8. OBSERVATION QUALITY: good


9. ADDITIONAL COMMENTS:
    
  Constellation : Vul		
  Distance from center line: 5 km
  Event probability at site :10.2 %
  Star magnitude: 13.1
  Asteroid magnitude: 19.2
  Predicted mag.drop: 6.1