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ASTEROIDAL OCCULTATION - REPORT FORM

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EAON & IOTA-ES

EUROPEAN ASTEROIDAL OCCULTATION NETWORK

INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION

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1. DATE: 26 Nov 2022
   STAR: UCAC4 575-008684
   ASTEROID: (316629) 2011 WR113

2. OBSERVER
   Name: S. SPOSETTI, F. DELUCCHI, A. LATINI, A. OSSOLA, A. MANNA, F. MOINO
   Address: 6525 GNOSCA - Switzerland
   Email: stefanosposetti@ticino.com

3. OBSERVING STATION
   Nearest city: CH-6914 Carona
   Longitude: 8.93835 (E)
   Latitude: 45.95425 (N)
   Altitude: 585 m
   (WGS84)

4. TIMING OF EVENTS
   Occultation recorded: NEGATIVE
   Type of event:
   "S"tart observation;
   "E"nd observation;

   Personal Equation Substracted: -
   Event Time (UTC) Accuracy + Comments
   code: HH:MM:SS.ss S.sss

-S : 20:39:42
-E : 20:47:00

5. TELESCOPE
   -Type: Reflector
   -Aperture: 150 mm
   -Focal length: 600 mm (with focal reducer)
   -Mount: Equatorial
   -Motor drive: Yes

6. TIMING & RECORDING
   -Camera/Sensor: Videocamera WAT-910HX-RC, CCIR, 1/2", ICX429ALL sensor
   -Videocamera settings: Shutter = x8; Gain = 41/41; Gamma = 1.00
   -Device of recording: Personal computer
   -Videograbber: Logilink USB Grabber VG0001, composite input
   -Software: Virtualdub v. 1.10.4, saved on Harddisk as Huffyuv compressed file
   -Time insertion device: IOTA-VTI, v.1.1.42
   -Timekeeping: GPS 1PPS (US Global Sat EM-406A)
   -Integration time: 0.160 s

7. OBSERVING CONDITIONS
   -Atmospheric transparency: good
   -Wind: -
   -Star image stability: good
   -Minor Planet Visible: -

8. ADDITIONAL COMMENTS
   -Asteroid is a Jupiter Trojan
   -Occultwatcher Cloud, Horizons/GaiaEDR3 prediction, Orbit Date: 23 Nov 2022(JPL#33), Rank: 8, Probability: ~ 4 %
   -https://cloud.occultwatcher.net/event/694-316629-53013-649570-U008684