ASTEROIDAL OCCULTATION - REPORT FORM

    +------------------------------+  +------------------------------+
    |            EAON              |  |            IOTA/ES           |
    |                              |  |   INTERNATIONAL OCCULTATION  |
    |     EUROPEAN  ASTEROIDAL     |  |      TIMING  ASSOCIATION     |
    |     OCCULTATION NETWORK      |  |       EUROPEAN SECTION       |
    +------------------------------+  +------------------------------+

1 DATE (YYYY/MM/DD): 2020/12/09
	STAR:        TYC 0865-01220-1
	ASTEROID:    Tokio
	N°:          498

2 OBSERVER: 
	Name:    Peter DELINCAK       
	E-mail:  pdlink@astronomy.sk
	Address: SLOVAKIA, Hviezdoslavova 1971, 022 01  Cadca
	Phone:   +421 915 710 121
	Web:     www.astronomy.sk

3 OBSERVING STATION: 
	Nearest city:            Cadca
	Station:                 PDlink Observatory
	Longitude (DD MM SS.s):  E 18 42 09.47 (WGS84)
	Latitude  (DD MM SS.s):  N 49 24 15.20 (WGS84)
	Altitude (m):            680.231m (WGS84)
        Single|Multiple station: Single


                         +----------------------------+
4 TIMING OF EVENTS:      |                            |
                         |  EVENT REPORTED: POSITIVE  |
                         |                            |
                         +----------------------------+
  
	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)
  
	Personal Equation Substracted: No
  
                                                  Comments
	Event   Time (UT)    P.E.   Acc.   
	Code   HH:MM:SS.ss   S.ss   S.ss
  
 	S  - 05:17:56.787          0.020s   :
 	   -             -      -           :
	D  - 05:19:36.312          0.020s   :
	R  - 05:19:40.187          0.020s   :
	   -             -      -           :
	E  - 05:20:00.261          0.020s   :
  
	Duration : 3.875  +/- 0.020s
	Mid-event : 05:19:38.250


5 TELESCOPE: 
	Type:          Mirror optics  
	Aperture:      400mm        
	Magnification: prime focus (f/5)
	Mount:         EQUATORIAL         
	Motor drive:   YES

6 TIMING & RECORDING:
	Time source: GPS 1PPS Integral GPS Receiver
	Sensor: QHY 5 III 290
	Recording: It=0.020ms (50 Img/s), uncompressed AVI
	Recording device: PC W7 32b

7 OBSERVING CONDITIONS:
	Atmospheric transparency: GOOD     
	Wind:                     NO    
	Temperature:              -3C
	Star image stability:     AVERAGE         
	Minor planet visible:     NO

8 ADDITIONAL COMMENTS: 
        Event data details according to the predictions from IOTA.
        Predicted event time was 05:19:39 UTC (+/- 1s) for my observing position.
        Predicted maximum duration was 4.3 seconds with a 5.4 mag drop.
        Position was 3km from predicted central line in NE direction
        inside the shadow with a probability of 98.6%.

        Receiving 07 satellites
        Horizontal Dilution of Precision 1.7
        
	Analyzed by Tangra.