#IOTA-ES ASTEROIDAL OCCULTATION - REPORT FORM 2.03 - DVTI+CAM TEMPLATE 1.6 #Event #Occultation: POSITIVE #DATE: 10 Oct 2023, 03:49:37 #PREDICTTIME: 10 Oct 2023, 03:49:37 #STAR: UCAC4 711-022008 #ASTEROID: Lorre #Nr: 5438 #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: 03:49:15.060 #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: D03:49:35.264 #Acc_D: 0.006 #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: R03:49:37.430 #Acc_R: 0.006 #EndObs: 03:50:00.006 #Duration: 2.166 #Exp_Time: 0.050 #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: 18.4 #Weatherconditions #Wind: #Temperature: 12.9 #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: 3 #Stability _=unstated 1=Steady 2=Slight flickering 3=Strong flickering #Stability: 1 #Comments: 90% Hum. # #EXTRA_FIELDS #Feed: Planned Observations #MpcObsCode: - #Prediction: yes #ProbabilityPercent: 49.5 #PredictedDurationSec: 2.5 #DistanceCentralLineKm: 14.1 #PathWidthKm: #StarMag: 12.2 #StarAltDeg: 61 #StarAzDeg: 296 #StarConstellation: Perseus #AsteroidMag: 17.2 #AsteroidDiameterKm: 28.0 #CombinedMag: 12.2 #DeltaMag: 5.0 #Moon: 18 percent lit, distance 88 deg #TelescopeType: Newtonian #MountModel: equatorial #MountMotorDrive: yes #StartObsAccSec: 0.001 #EndObsAccSec: 0.001 #FieldOfView: #CameraGainDb: +20 dB #CameraBinning: 4x4 #CameraWidthHeight: 406x310 #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 v5.7.0-33 #LightcurveExtractionSoftware: #LightcurveAnalysisSoftware: #ErrorInTime: +/- 1.600 s #StarMagnitudeInV: #StarMagnitudeInR: #MaxDuration: 2.5 s #MagnitudeDrop: 5.0 #MagnitudeDropInR: #EventRank: #Probability: 49.5 ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +-------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +-------------------------------+ 1 DATE: 2023 Oct 10, 03:49 (UTC) STAR: UCAC4 711-022008 mv: 12.2 mag ASTEROID: (5438) Lorre mv: 17.2 mag (diam. 28.0 km) combined magnitude: mv: 12.2 mag delta-magnitude: mv: 5.0 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 14.1 km from C.L.) Probability: 49.5 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 03 49 15.060 +/- 0.001 s : Start observation (UTC) E 03 50 00.006 +/- 0.001 s : End observation (UTC) P 03 49 37.000 +/- 1.600 s : Predicted time (UTC) (predicted: max. 2.5 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: 406x310, Exposure time 50 ms, Gain +20 dB, Binning 4x4, Format ADV 16-bit Time insertion: Digital GNSS timestamp into image sensor data stream 7 OBSERVING CONDITIONS: Moon: 18 percent lit, distance 88 deg Wind: Bft Temperature: 12.9 deg C Transparency: 3 Star image stability: 1 Altitude of star: 61 deg Azimut of star: 296 deg in Perseus StarConstellation: Perseus 8 ADDITIONAL COMMENTS: Feed: Planned Observations Video recording software: DVTI Cam Control v5.7.0-33 Signal/Noise: 18.4 Further Comments: 90% Hum.