#IOTA-ES ASTEROIDAL OCCULTATION - REPORT FORM 2.01
#Event 
#Occultation: POSITIVE
#DATE: 8 September 2023
#PREDICTTIME: 08 Sep; 19:03:03 UT
#STAR: UCAC4 502_141527
#ASTEROID: Limpopo               
#Nr: 1490
#OBSERVER
#Observer1: Stefano Sposetti
#Observer2: 
#moreObs: the event was observed live by other 8 persons
#E-mail: stefanosposetti@ticino.com
#Address: CH-6525 Gnosca
#OBSERVING_STATION
#NearestCity: Bellinzona
#Countrycode: CH
#Coordinates  
#Latitude:  +46 11 53.0
#Longitude: +009 00 57.0
#Altitude: 230
#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: 20
#FocalLength: 65 
#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: 19:02:30.0
#D D=Main Star d=second Star G=satellite main star g=satellite 2nd star N=ring C=Not Seen  M=non detection +time hh:mm:ss.s
#D: D19:02:58.92
#Acc_D: 0.08
#R R=Main Star r=second Star B=satellite main star b=satellite 2nd star N=ring C=Not Seen M=non detection +time hh:mm:ss.s
#R: R19:03:00.60
#Acc_R: 0.08
#EndObs: 19:03:15.0
#Duration: 1.68
#Exp_Time: 0.160
#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: WAT 910HX/RC
#Signal/Noise: 7.0
#Weatherconditions
#Wind: 
#Temperature: 
#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: 2
#Stability _=unstated 1=Steady 2=Slight flickering 3=Strong flickering 
#Stability: 1
#Comments: 
#
#EXTRA_FIELDS
#Feed: Planned Observations
#MpcObsCode:
#Prediction: JPL#58
#ProbabilityPercent: ~50%
#PredictedDurationSec: 2.2 s
#DistanceCentralLineKm: 
#PathWidthKm: 25 km
#StarAltDeg:  33°
#StarAzDeg: @112°
#StarConstellation: Pegasus
#AsteroidMag: 14.3
#AsteroidDiameterKm: 15
#CombinedMag: 11.5
#DeltaMag: 3.0
#MoonAltitude: -16°
#TelescopeType: Schmidt-Cassegrain
#MountModel: fork
#MountMotorDrive: no
#StartObsAccSec: 
#EndObsAccSec: 
#FieldOfView: 
#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 Lagarith compressed file
#Time insertion device: IOTA-VTI, v.1.1.42
#Timekeeping: GPS 1PPS (US Global Sat EM-406A)
#Integration time: 0.160 s
#LightcurveExtractionSoftware: Tangra v3.7
#LightcurveAnalysisSoftware: AOTA v4.2023.3.19
#
#ErrorInTime:  +/- 2 sec
#StarMagnitudeInV: 11.6
#StarMagnitudeInR: 11.2
#MaxDuration: 2 sec
#MagnitudeDrop: 2.8
#MagnitudeDropInR: 2.7
#EventRank: 100
#Probability: ~50%
#ExtraComments: Between D-instant and R-instant a frame-recording-error occured. This problem lasted about 0.5 s and has not affected the D and R phases. The manual check between the incrusted times (made by the IOTA-VTI) on the frames and the frame number is correct. A lightcurve can be seen here: https://sposetti.ch/wp-content/uploads/2023/09/2023_09_08_Limpopo_Bellinzona.png