#IOTA-ES ASTEROIDAL OCCULTATION - REPORT FORM 2.03 - DVTI+CAM TEMPLATE 1.6 #Event #Occultation: POSITIVE #DATE: 12 Apr 2024, 23:04:24 #PREDICTTIME: 12 Apr 2024, 23:04:24 #STAR: UCAC4 549-026895 #ASTEROID: Smuts #Nr: 1731 #OBSERVER #Observer1: Stefan Meister #Observer2: #moreObs: #E-mail: meister@dolphins.ch #Address: Sandgruebstr. 9, CH-8193 Eglisau, Switzerland #OBSERVING_STATION #NearestCity: Buelach #Countrycode: CH #Coordinates LAT +/-DD MM SS.S LON +/-DDD MM SS.S #Latitude: +47 31 10.402 #Longitude: +008 34 14.300 #Altitude: 550 #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: 2 #Aperture in cm #Aperture: 50.0 #FocalLength in cm #FocalLength: 250.0 #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: 23:04:04.729 #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: D23:04:23.730 #Acc_D: 0.912 #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: R23:04:25.730 #Acc_R: 0.912 #EndObs: 23:04:44.731 #Duration: 2.000 #Exp_Time: 0.500 #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, serial #17 #Signal/Noise: 3.4 #Weatherconditions #Wind: #Temperature: 10.0 #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: 6 #Stability _=unstated 1=Steady 2=Slight flickering 3=Strong flickering #Stability: 3 #Comments: # #EXTRA_FIELDS #Feed: Community Tags #MpcObsCode: - #Prediction: yes #ProbabilityPercent: 100.0 #PredictedDurationSec: 2.3 #DistanceCentralLineKm: 8.6 #PathWidthKm: #StarMag: 13.9 #StarAltDeg: 9 #StarAzDeg: 289 #StarConstellation: Gemini #AsteroidMag: 16.8 #AsteroidDiameterKm: 55.0 #CombinedMag: 13.8 #DeltaMag: 3.0 #Moon: 22 percent lit, distance 18 deg #TelescopeType: Newtonian #MountModel: equatorial #MountMotorDrive: yes #StartObsAccSec: 0.001 #EndObsAccSec: 0.001 #FieldOfView: #CameraGainDb: +24 dB #CameraBinning: 2x2 #CameraWidthHeight: 816x620 #CameraRecordingFormat: ADV 16-bit #ImageSensor: Sony IMX430LLJ-C (1.1" 1624x1240 4.5um CIS) #TimeSource: Max M8C GNSS module in the camera #TimeInserter: - #FrameGrabber: - #RecordingSoftware: DVTI Cam Control v5.8.0-45 #LightcurveExtractionSoftware: #LightcurveAnalysisSoftware: #ErrorInTime: +/- 0.104 s #StarMagnitudeInV: #StarMagnitudeInR: #MaxDuration: 2.3 s #MagnitudeDrop: 3.0 #MagnitudeDropInR: #EventRank: #Probability: 100.0 ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2024 Apr 12, 23:04 (UTC) STAR: UCAC4 549-026895 mv: 13.9 mag ASTEROID: (1731) Smuts mv: 16.8 mag (diam. 55.0 km) combined magnitude: mv: 13.8 mag delta-magnitude: mv: 3.0 mag 2 OBSERVER: Name: Stefan Meister E-mail: meister@dolphins.ch Address: Sandgruebstr. 9, CH-8193 Eglisau, Switzerland 3 OBSERVING STATION: Nearest city: Buelach, CH Station: Observatory Buelach (MPC Obs. Code: 167) Latitude: N47 31' 10.402" (WGS84) Longitude: E008 34' 14.300" (WGS84) Altitude: 550 m (MSL) (WGS84) Single station: yes Predicted observation: yes (Distance 8.6 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 04 04.729 +/- 0.001 s : Start observation (UTC) E 23 04 44.731 +/- 0.001 s : End observation (UTC) P 23 04 24.738 +/- 0.104 s : Predicted time (UTC) (predicted: max. 2.3 s) In case of a positive event: see extracted times in the PyOTE report "LC.pyote_log.txt". 5 TELESCOPE: Type: Newtonian Aperture: 500 mm Focal length: 2500 mm Magnification: focal (resulting field of view: 11.9' in x-axis for IMX430) Mount: equatorial Motor drive: yes 6 TIMING & RECORDING: Time source: GPS Quality of signal: Accuracy 2 m Camera/Sensor: Digital Camera with integrated GPS-VTI (DVTI+CAM, serial #17) Image Sensor Sony IMX430LLJ-C (1.1" 1624x1240 4.5um CIS) Website of the project: https://groups.io/g/d-vti-cam/ Settings: 816x620, Exposure time 500.0 ms, Gain +24 dB, Binning 2x2, Format ADV 16-bit Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Moon: 22 percent lit, distance 18 deg Wind: Bft Temperature: 10.0 deg C Transparency: 6 Star image stability: 3 Altitude of star: 9 deg Azimut of star: 289 deg in Gemini StarConstellation: Gemini 8 ADDITIONAL COMMENTS: Feed: Community Tags Video recording software: DVTI Cam Control v5.8.0-45 Signal/Noise: 3.4 Further Comments: