#IOTA-ES ASTEROIDAL OCCULTATION - REPORT FORM 2.03 - DVTI+CAM TEMPLATE 1.6 #Event #Occultation: POSITIVE #DATE: 19 Mar 2025, 23:08:17 #PREDICTTIME: 19 Mar 2025, 23:08:17 #STAR: UCAC4 570-034822 #ASTEROID: Thelmaruby #Nr: 10865 #OBSERVER #Observer1: Mike Kohl #Observer2: #moreObs: #E-mail: mike.kohl@gmx.ch #Address: Tannaegertenstrasse 12, 8635 Duernten, Switzerland #OBSERVING_STATION #NearestCity: Duernten #Countrycode: CH #Coordinates LAT +/-DD MM SS.S LON +/-DDD MM SS.S #Latitude: +47 16 36.998 #Longitude: +008 50 16.598 #Altitude: 511 #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: 23:07:28.220 #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: D23:08:17.300 #Acc_D: 0.300 #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: R23:08:18.280 #Acc_R: 0.150 #EndObs: 23:08:58.634 #Duration: 0.980 #Exp_Time: 0.200 #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: 5.0 #Weatherconditions #Wind: #Temperature: 6.0 #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: 100.0 #PredictedDurationSec: 1.4 #DistanceCentralLineKm: 3.0 #PathWidthKm: #StarMag: 12.7 #StarAltDeg: 31 #StarAzDeg: 272 #StarConstellation: Gemini #AsteroidMag: 18.8 #AsteroidDiameterKm: 12.0 #CombinedMag: 12.7 #DeltaMag: 6.1 #Moon: below horizon #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: +/- 0.229 s #StarMagnitudeInV: #StarMagnitudeInR: #MaxDuration: 1.4 s #MagnitudeDrop: 6.1 #MagnitudeDropInR: #EventRank: #Probability: 100.0 ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2025 Mar 19, 23:08 (UTC) STAR: UCAC4 570-034822 mv: 12.7 mag ASTEROID: (10865) Thelmaruby mv: 18.8 mag (diam. 12.0 km) combined magnitude: mv: 12.7 mag delta-magnitude: mv: 6.1 mag 2 OBSERVER: Name: Mike Kohl E-mail: mike.kohl@gmx.ch Address: Tannaegertenstrasse 12, 8635 Duernten, Switzerland 3 OBSERVING STATION: Nearest city: Duernten, CH Station: Latitude: N47 16' 36.998" (WGS84) Longitude: E008 50' 16.598" (WGS84) Altitude: 511 m (MSL) (WGS84) Single station: yes Predicted observation: yes (Distance 3.0 km from C.L.) Probability: 100.0 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 23 07 28.220 +/- 0.001 s : Start observation (UTC) E 23 08 58.634 +/- 0.001 s : End observation (UTC) P 23 08 17.443 +/- 0.229 s : Predicted time (UTC) (predicted: max. 1.4 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 3 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 200.0 ms, Gain +24 dB, Binning 2x2, Format ADV 16-bit Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Moon: below horizon Wind: Bft Temperature: 6.0 deg C Transparency: 1 Star image stability: 2 Altitude of star: 31 deg Azimut of star: 272 deg in Gemini StarConstellation: Gemini 8 ADDITIONAL COMMENTS: Feed: ITALOccult Events Video recording software: DVTI Cam Control v5.8.0-45 Signal/Noise: 5.0 Further Comments: