#IOTA-ES ASTEROIDAL OCCULTATION - REPORT FORM 2.03 - DVTI+CAM TEMPLATE 1.6 #Event #Occultation: POSITIVE #DATE: 17 Mar 2025, 22:54:29 #PREDICTTIME: 17 Mar 2025, 22:54:29 #STAR: UCAC4 473-047554 #ASTEROID: Rendtel #Nr: 20518 #OBSERVER #Observer1: Mike Kohl #Observer2: #moreObs: #E-mail: mike.kohl@gmx.ch #Address: Tannaegertenstrasse 12, 8635 Duernten, Switzerland #OBSERVING_STATION #NearestCity: Netstal #Countrycode: CH #Coordinates LAT +/-DD MM SS.S LON +/-DDD MM SS.S #Latitude: +47 04 37.400 #Longitude: +009 04 03.230 #Altitude: 450 #Datum _blank=WGS84 N=NAD1927 E=ED1950 T=Tokyo G=GB1936 *=unspecified, or other #Datum: #Teleskop _=unstated 1=Refractor 2=Newtonian 3=SCT 4=Dobsonian 5=Binoculars 6=Other 7=None 8=eVscope #Telescope: 3 #Aperture in cm #Aperture: 20.0 #FocalLength in cm #FocalLength: 120.0 #ObservingMethod _=unspecified a=Analogue & digital video b=Digital SLR-camera video c=Photometer d=Sequential images e=Drift scan f=Visual g=Other #ObservingMethod: a #Observation #StartObs: 22:53:59.227 #D D=Main Star d=second Star G=satellite main star g=satellite 2nd star N=ring M=non detection +time hh:mm:ss.s #D: D22:54:29.110 #Acc_D: 0.130 #R R=Main Star r=second Star B=satellite main star b=satellite 2nd star N=ring M=non detection +time hh:mm:ss.s #R: R22:54:29.880 #Acc_R: 0.100 #EndObs: 22:55:02.036 #Duration: 0.770 #Exp_Time: 0.100 #Timesource _=unspecified a=GPS b=NTP c=Telephone (fixed or mobile) d=Radio time signal e=Internal clock of recorder f=Stopwatch g=Other #Timesource: a #Camera: DVTI+CAM 174, serial #28 #Signal/Noise: 3.7 #Weatherconditions #Wind: #Temperature: 8.0 #Transparency 1=Clear 2=Fog 3=Thin cloud <2 [mag loss <2 mag.] 4=Thick cloud >2 [mag loss >2 mag. 5=Broken opaque cloud [that is, observed thru gaps in the cloud] 6=Star faint 7=By averted vision #Transparency: 1 #Stability _=unstated 1=Steady 2=Slight flickering 3=Strong flickering #Stability: 2 #Comments: # #EXTRA_FIELDS #Feed: ITALOccult Events #MpcObsCode: - #Prediction: yes #ProbabilityPercent: 89.3 #PredictedDurationSec: 0.5 #DistanceCentralLineKm: 0.7 #PathWidthKm: #StarMag: 12.4 #StarAltDeg: 46 #StarAzDeg: 165 #StarConstellation: Virgo #AsteroidMag: 18.3 #AsteroidDiameterKm: 7.0 #CombinedMag: 12.4 #DeltaMag: 5.9 #Moon: 88 percent lit, distance 42 deg #TelescopeType: SCT #MountModel: #MountMotorDrive: #StartObsAccSec: 0.001 #EndObsAccSec: 0.001 #FieldOfView: #CameraGainDb: +24 dB #CameraBinning: 2x2 #CameraWidthHeight: 960x600 #CameraRecordingFormat: ADV 16-bit #ImageSensor: Sony IMX174LLJ-C (1/1.2" 1920x1200 5.86um CIS) #TimeSource: Max M8C GNSS module in the camera #TimeInserter: - #FrameGrabber: - #RecordingSoftware: DVTI Cam Control v5.8.0-45 #LightcurveExtractionSoftware: #LightcurveAnalysisSoftware: #ErrorInTime: +/- 0.357 s #StarMagnitudeInV: #StarMagnitudeInR: #MaxDuration: 0.5 s #MagnitudeDrop: 5.9 #MagnitudeDropInR: #EventRank: #Probability: 89.3 ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2025 Mar 17, 22:54 (UTC) STAR: UCAC4 473-047554 mv: 12.4 mag ASTEROID: (20518) Rendtel mv: 18.3 mag (diam. 7.0 km) combined magnitude: mv: 12.4 mag delta-magnitude: mv: 5.9 mag 2 OBSERVER: Name: Mike Kohl E-mail: mike.kohl@gmx.ch Address: Tannaegertenstrasse 12, 8635 Duernten, Switzerland 3 OBSERVING STATION: Nearest city: Netstal, CH Station: Latitude: N47 04' 37.400" (WGS84) Longitude: E009 04' 03.230" (WGS84) Altitude: 450 m (MSL) (WGS84) Single station: yes Predicted observation: yes (Distance 0.7 km from C.L.) Probability: 89.3 percent +----------------------------------+ 4 TIMING OF EVENT: | | | OCCULTATION RECORDED: POSITIVE | | | +----------------------------------+ Type of event: S = Start observation I = Interrupt-start D = Disappearance B = Blink F = Flash E = End observation I = Interrupt-end R = Reappearance M = Mid-event P = Predicted time Event Time (UTC) Acc. Comments Code HH MM SS.sss S.sss S 22 53 59.227 +/- 0.001 s : Start observation (UTC) E 22 55 02.036 +/- 0.001 s : End observation (UTC) P 22 54 29.463 +/- 0.357 s : Predicted time (UTC) (predicted: max. 0.5 s) In case of a positive event: see extracted times in the PyOTE report "LC.pyote_log.txt". 5 TELESCOPE: Type: SCT Aperture: 200 mm Focal length: 1200 mm Magnification: focal Mount: Motor drive: 6 TIMING & RECORDING: Time source: GPS Quality of signal: Accuracy 19 m Camera/Sensor: Digital Camera with integrated GPS-VTI (DVTI+CAM, serial #28) Image Sensor Sony IMX174LLJ-C (1/1.2" 1920x1200 5.86um CIS) Website of the project: https://groups.io/g/d-vti-cam/ Settings: 960x600, Exposure time 100.0 ms, Gain +24 dB, Binning 2x2, Format ADV 16-bit Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Moon: 88 percent lit, distance 42 deg Wind: Bft Temperature: 8.0 deg C Transparency: 1 Star image stability: 2 Altitude of star: 46 deg Azimut of star: 165 deg in Virgo StarConstellation: Virgo 8 ADDITIONAL COMMENTS: Feed: ITALOccult Events Video recording software: DVTI Cam Control v5.8.0-45 Signal/Noise: 3.7 Further Comments: