ASTEROIDAL OCCULTATION - REPORT FORM


EAON & IOTA/ES 

1. DATE: 2022 Apr 17  STAR:  TYC 5754-02611-1  ASTEROID: (57291) 2001 QQ172

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 43.8 N 
   Longitude: 19° 45 02.8 E 
   Altitude: 450 m
   WGS84, GPS meas  

4. TIMING OF EVENTS OCCULTATION RECORDED : N E G A T I V E

Type of event: 

(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash
(E)nd observation (J)nterrupt end (R)eappearance (O)ther (specify)


Event Time (UTC) P. E. Accuracy
code (HH MM SS.ss) S.ss SS.ss

S 02 56 00         

E 02 58 00

  
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) and GPS-inserter
        Sensor: ZWO ASI 178MC
        Recording:  exposure 30 ms  
        Recording device: laptop HP, SharpCap 4.0 (Windows10)
        Time  insertion: laptop clock corrected GPS-inserter


7. OBSERVING CONDITIONS

   Atmospheric transparency: good   
   Wind: no
   Star image stability: good
   Temperature: 3 deg Celsius
   Minor planet visible: no
   Event in altitude: 11° 


8. OBSERVATION QUALITY: good


9. ADDITIONAL COMMENTS:
   
  Constellation: Aquila 	
  Distance from center line: 39 km
  Event probability at site : 7.7 %
  Star magnitude: 9.6
  Asteroid magnitude: 20.6
  Predicted mag.drop: 11.0