International
Certificate
2021

Boat

KATARINA JEE

EST 464

 
Offshore
Racing
Congress

Certificate number: 165/21
Rated boat velocities in knots
Wind Velocity6 kt8 kt10 kt12 kt14 kt16 kt20 kt
Beat Angles43.1°41.6°41.3°39.8°39.0°39.4°39.4°
Beat VMG3.263.934.474.834.965.005.05
52°5.015.946.586.907.047.097.13
60°5.316.256.787.077.237.317.34
75°5.706.647.077.327.467.647.81
90°5.886.807.237.557.858.068.30
110°5.626.657.157.537.938.299.00
120°5.306.447.067.457.868.299.10
135°4.795.896.737.187.557.968.86
150°4.065.116.036.767.187.528.30
Run VMG3.514.435.245.956.597.057.73
Gybe Angles145.5°150.0°152.0°158.0°180.0°180.0°180.0°

GPH = 644.9

CDL = 8.564

BOAT
ClassFirst 34.7𝕚DesignerFarrBuilderBeneteauAge Date03/2007Series Date10/2005Offset FileFIRST347.off
HULL
Length Overall9.980 mMaximum Beam3.372 mDraft2.001 mDisplacement4,638 kgDLR6.4319IMS DivisionCruiser/RacerDynamic Allowance0.226%Age Allowance0.487%
PROPELLER
InstallationStrut𝕚TypeFolding 2 blades𝕚Diameter0.410m
CREW
Maximum weight680 kg𝕚Minimum weight510 kg𝕚* when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRated Mainsail33.4134.12Headsail Luffed26.1126.11Headsail FlyingSymmetric71.13𝕚71.13𝕚Asymmetric54.47𝕚56.38𝕚
* 1 asymmetric(s) with SHW/SFL < 85%
SAIL LIMITATIONS
Headsails5 Spinnakers4 * Asymmetric may be tacked on the pole
STABILITY
Righting Moment483.1 kg·mStability Index179.7
OWNER




The owner certifies that he/she understands his/her responsibilities under ORC Rule and Regulations.

International
Certificate
2021

Boat

KATARINA JEE

EST 464

 
Offshore
Racing
Congress

Certificate number: 165/21
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1103.8916.2805.4745.6726.3719.6713.5
52°718.6606.3547.3521.8511.3507.4504.7
60°678.2576.0530.8509.4497.8492.7490.4
75°632.0542.5508.9491.9482.6471.4461.1
90°612.0529.1498.2476.8458.8446.9433.7
110°640.4541.3503.7478.2454.2434.4399.9
120°678.8558.9509.6483.0458.1434.2395.8
135°751.3611.6534.9501.2476.8452.2406.1
150°887.4704.5596.6532.3501.5478.6433.6
Run VMG1024.7813.5687.7604.6546.4510.6465.4
Selected Courses
Windward / Leeward1064.2864.9746.5675.1636.3615.1589.4
All purpose810.5670.1595.5553.4528.4513.2490.7
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward709.80.8453
All purpose574.21.0449
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Predominantly Upwind623.90.9617
Predominantly Downwind583.11.0291
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low740.30.8105
Triple Number All Purpose Medium570.91.0509
Triple Number All Purpose High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Predominantly Upwind623.90.9617
Predominantly Downwind583.11.0291
Predominantly Upwind Low835.30.7183
Predominantly Upwind Medium644.30.9312
Predominantly Upwind High598.21.0029
Predominantly Downwind Low806.50.7440
Predominantly Downwind Medium577.31.0393
Predominantly Downwind High481.41.2463
Chicago-Mac Upwind0.9436
Chicago-Mac All Purpose0.9750
Chicago-Mac Downwind1.0114
Bayview-Mac Cove Island0.9054
Bayview-Mac Shore0.9116
Victoria-Maui1.0839
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance627.8
Triple Number Coastal/Long Distance Low740.3
Triple Number Coastal/Long Distance Medium570.9
Triple Number Coastal/Long Distance High508.6
Triple Number Windward/Leeward Low964.5
Triple Number Windward/Leeward Medium705.1
Triple Number Windward/Leeward High610.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8105
Triple Number Coastal/Long Distance Medium1.0509
Triple Number Coastal/Long Distance High1.1798
Triple Number Windward/Leeward Low0.6221
Triple Number Windward/Leeward Medium0.8510
Triple Number Windward/Leeward High0.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low740.3
Triple Number Coastal/Long Distance Medium570.9
Triple Number Coastal/Long Distance High508.6
Triple Number Windward/Leeward Low964.5
Triple Number Windward/Leeward Medium705.1
Triple Number Windward/Leeward High610.8
Predominantly Upwind623.9
Predominantly Downwind583.1
Predominantly Reaching556.0
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8105
Triple Number Coastal/Long Distance Medium1.0509
Triple Number Coastal/Long Distance High1.1798
Triple Number Windward/Leeward Low0.6221
Triple Number Windward/Leeward Medium0.8510
Triple Number Windward/Leeward High0.9823
Coastal/Long Distance0.9558
Predominantly Upwind0.9617
Predominantly Downwind1.0291
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.9558
Tretall Distanseseilas Lite vind0.8105
Tretall Distanseseilas Mellomvind1.0509
Tretall Distanseseilas Mye vind1.1798
Tretall Pølsebane Lite vind0.6221
Tretall Pølsebane Mellomvind0.8510
Tretall Pølsebane Mye vind0.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind623.90.9617
Predominantly Downwind583.11.0291
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore597.11.0048
Cape Doctor Coastal497.51.2061
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8105
Triple Number Coastal/Long Distance Medium1.0509
Triple Number Coastal/Long Distance High1.1798
Triple Number Windward/Leeward Low0.6221
Triple Number Windward/Leeward Medium0.8510
Triple Number Windward/Leeward High0.9823
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8105
Triple Number Coastal/Long Distance Medium1.0509
Triple Number Coastal/Long Distance High1.1798
Triple Number Windward/Leeward Low0.6221
Triple Number Windward/Leeward Medium0.8510
Triple Number Windward/Leeward High0.9823
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Predominantly Upwind623.90.9617
Predominantly Downwind583.11.0291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance627.80.9558
Triple Number Coastal/Long Distance Low740.30.8105
Triple Number Coastal/Long Distance Medium570.91.0509
Triple Number Coastal/Long Distance High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1060.3810.3672.1590.8549.7519.2469.5
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low740.30.8105
Triple Number All Purpose Medium570.91.0509
Triple Number All Purpose High508.61.1798
Triple Number Windward/Leeward Low964.50.6221
Triple Number Windward/Leeward Medium705.10.8510
Triple Number Windward/Leeward High610.80.9823
Predominantly Upwind623.90.9617
Predominantly Downwind583.11.0291
Predominantly Upwind Low835.30.7183
Predominantly Upwind Medium644.30.9312
Predominantly Upwind High598.21.0029
Predominantly Downwind Low806.50.7440
Predominantly Downwind Medium577.31.0393
Predominantly Downwind High481.41.2463
Chicago-Mac Upwind0.9436
Chicago-Mac All Purpose0.9750
Chicago-Mac Downwind1.0114
Bayview-Mac Cove Island0.9054
Bayview-Mac Shore0.9116
Harvest Moon Regatta505.21.1877
Victoria-Maui1.0839

International
Certificate
2021

Boat

KATARINA JEE

EST 464

 
Offshore
Racing
Congress

Certificate number: 165/21
Data in meters/kilograms (Metric)𝕚
HULL AND APPENDAGES
ClassFirst 34.7𝕚Measurement18/06/2021𝕚Measurer𝕚HIN𝕚Plan review𝕚Hull constructionCored𝕚Carbon RudderNo𝕚Light stanchionsNo𝕚Trim tabNo𝕚
LOA9.980𝕚Max. Beam3.372𝕚Draft2.001𝕚Displacement4,638𝕚Wetted area22.16𝕚IMS L9.117𝕚LSM08.967𝕚Acc. length9.980𝕚Sink (kg/mm)16.49𝕚
VCGD-4.811𝕚VCGM-4.797𝕚RM Measured (kg·m)483.1𝕚RM Default (kg·m)99.0𝕚Limit of positive stability(°)180.0𝕚Stability Index179.7𝕚
PROPELLER
Propeller TypeFolding 2 blades𝕚
InstallationStrut𝕚PRD0.410𝕚EDL1.800𝕚ST30.182𝕚Twin screwNo𝕚PBW𝕚ST10.035𝕚ST40.100𝕚PIPA0.0030𝕚ST20.182𝕚ST50.280𝕚
RIG
Forestay tensionAft𝕚Inner stayNone Fitted𝕚Carbon mastNo𝕚Headsail furlerNo𝕚Mainsail furlerNo𝕚Articulated bowspritNo𝕚Non-circular riggingNo𝕚Fiber riggingNo𝕚Runners/Checkstays0𝕚Spreaders2𝕚
P12.500𝕚IG13.010𝕚ISP13.090𝕚MDT10.115𝕚MDL10.170𝕚MDT20.115𝕚MDL20.138𝕚TL1.000𝕚MW0.170𝕚GO0.190𝕚
E4.460𝕚J3.640𝕚BAS1.560𝕚FSD0.033𝕚SFJ0.000𝕚SPL3.610𝕚TPS𝕚BD0.130𝕚MWT128.00𝕚MCG4.320𝕚
FLOTATION AND STABILITY
Inclining TestPoles Inclining𝕚SFFP0.172𝕚SAFP9.530𝕚Flotation Date08/05/2021𝕚FFM1.291𝕚FAM1.036𝕚Measurer𝕚FF1.298𝕚FA1.040𝕚Comment𝕚LCFcl5.384𝕚LCFsh5.623𝕚SG1.0050𝕚HBI1.161𝕚
W160.2𝕚W260.2𝕚W360.2𝕚W460.2𝕚
PD1202.0𝕚PD2203.0𝕚PD3203.0𝕚PD4203.0𝕚
WD10.360𝕚PLM9000.00𝕚GSA12.6𝕚RSA4298.7𝕚
MEASUREMENT INVENTORY
IdTankTypeCapacityLCGVCGConditionDescription2𝕚Fuel𝕚PVC𝕚90.0𝕚7.77𝕚𝕚𝕚𝕚1𝕚Wather𝕚PVC𝕚100.0𝕚3.96𝕚𝕚𝕚𝕚
IdItemDescriptionWeightLCGVCG
3𝕚Battery𝕚𝕚𝕚𝕚2𝕚Battery60Ah𝕚𝕚3.82𝕚𝕚1𝕚Battery 70Ah𝕚𝕚3.72𝕚𝕚2𝕚Miscellaneous𝕚𝕚𝕚𝕚1𝕚Miscellaneous𝕚𝕚𝕚𝕚

International
Certificate
2021

Boat

KATARINA JEE

EST 464

 
Offshore
Racing
Congress

Certificate number: 165/21
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeasurerMeas.DateMakerMaterialComment5𝕚0.31𝕚1.03𝕚1.73𝕚2.86𝕚3.71𝕚33.41𝕚𝕚𝕚𝕚Unknown𝕚P12,50;E4,46𝕚
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeasurerMeas.DateMakerMaterialComment0𝕚0.11𝕚0.61𝕚1.13𝕚2.10𝕚2.96𝕚3.76𝕚12.96𝕚Yes𝕚No𝕚 𝕚26.11𝕚𝕚01/06/2021𝕚𝕚Unknown𝕚MEDIUM𝕚7a𝕚0.11𝕚0.60𝕚1.11𝕚2.05𝕚2.93𝕚3.72𝕚12.85𝕚Yes𝕚No𝕚 𝕚25.52𝕚𝕚22/06/2016𝕚NS𝕚Unknown𝕚𝕚6a𝕚0.10𝕚0.58𝕚1.10𝕚2.05𝕚2.93𝕚3.74𝕚12.86𝕚Yes𝕚No𝕚 𝕚25.52𝕚𝕚22/06/2016𝕚NS𝕚Unknown𝕚𝕚8a𝕚0.11𝕚0.57𝕚1.07𝕚2.01𝕚2.90𝕚3.75𝕚12.78𝕚Yes𝕚No𝕚 𝕚25.11𝕚𝕚22/06/2016𝕚NS𝕚Unknown𝕚𝕚0𝕚0.10𝕚0.57𝕚1.09𝕚2.02𝕚2.88𝕚3.70𝕚12.61𝕚Yes𝕚No𝕚 𝕚24.68𝕚𝕚01/06/2021𝕚𝕚Unknown𝕚LIGHT𝕚0𝕚0.11𝕚0.57𝕚1.05𝕚1.95𝕚2.82𝕚3.65𝕚12.70𝕚Yes𝕚No𝕚 𝕚24.31𝕚𝕚01/06/2021𝕚𝕚Unknown𝕚Heavy𝕚
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeasurerMeas.DateMakerMaterialComment0𝕚13.06𝕚13.06𝕚13.06𝕚6.56𝕚6.44𝕚71.13𝕚𝕚01/06/2021𝕚𝕚Unknown𝕚S1𝕚5𝕚13.08𝕚13.08𝕚13.08𝕚6.55𝕚6.39𝕚71.05𝕚𝕚27/06/2015𝕚𝕚Unknown𝕚𝕚6𝕚13.03𝕚13.03𝕚13.03𝕚6.53𝕚6.55𝕚70.95𝕚𝕚27/06/2015𝕚𝕚Unknown𝕚𝕚0𝕚12.97𝕚12.98𝕚12.98𝕚6.57𝕚6.37𝕚70.61𝕚𝕚01/06/2021𝕚𝕚Unknown𝕚S2𝕚0𝕚13.08𝕚13.08𝕚13.08𝕚6.28𝕚6.56𝕚69.06𝕚𝕚01/06/2021𝕚𝕚Unknown𝕚S3𝕚
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeasurerMeas.DateMakerMaterialComment1𝕚12.66𝕚12.22𝕚12.44𝕚4.93𝕚6.55𝕚75%𝕚54.47𝕚𝕚𝕚𝕚Unknown𝕚𝕚