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Device: 1000-3BF4-4AA0
Flight ID: 1734200Hz Nano test (2)
Flight summary
Altitude
Apogee
150.1 Meters
Time to apogee
5.82 seconds
Burnout altitude
42.41 m
Max velocity altitude
43.48 m
Ejection altitude
63.99 m
Landing altitude
2.38 m
Stability
Stability score
68.3 / 100 (Moderate)
Launch straightness (20%)95.2
Coning · full (25%)16.8
Coning · boost (25%)90.4
Thrust straightness (30%)75
Launch tilt 1.9° · Coning 222.5/32.5°/s · Spin 108.2°/s · Thrust 94.6%
About this score
Worked out from the flight log between liftoff and 80% of apogee, independent of the angle the altimeter was mounted at in the airframe.
Launch straightness (20%) – how close to vertical it left the rod.
Coning · full (25%) and Coning · boost (25%) – how much the nose swung off the rocket's own axis. The main factor.
Thrust straightness (30%) – how cleanly the motor pushed along the body.
Spin about the rocket's own axis is not counted against it — a fast, straight spin is stable. The line under the bars shows the raw measurements.
Velocity
Max ascent
55.3 m/s
Max descent
-32.79 m/s
At burnout
54.520 m/s
Landing velocity
-9.815 m/s
Descent velocity
-8.850 m/s
Ejection velocity
45.85 m/s
Recovery
Single deploy (no dual deploy detected)
Acceleration
Max ascent
7.39 G
Max descent
42.61 G
Max during burn
7.39 G
Average ascent
0.26 G
Average burn
3.63 G
Times
Burnout (first)
1.26 seconds
Apogee
5.82 seconds
Possible ejection
1.699 seconds
Landing
22.54 seconds
Angles
Launch pad tilt
103.01°
Thrust calc pad tilt
1.9°
Max tilt to burnout
107.94°
Launch roll
113.36°
Launch pitch
-55.40°
Max spin (burn)
497.41 dps
Avg spin (burn)
98.05 dps
General
Upload date
10/06/26-21:24:48
Data samples
5356
Total recording time
39.213 s
Average samples/s
136.5
Number of lockouts
0
Recording altitude
37.50 m
Launch after startup
6m 13s
Reference axis
Z
Battery & temperature
Battery start
69%
Battery end
69%
Temperature start
18.92°C
Temperature end
19.07°C
Flight data animation
FLIGHT 1734
150.1 Meters
ALTITUDE
0.00m
VELOCITY
0.00m/s
ACCEL
0.00G
TILT
0.00°
PITCH
0.00°
ROLL
0.00°
YAW
0.00°
TIME
0.00s
AWAITING LAUNCH
ALT
altimetercloud.com
LAUNCH
T+0.00s
LANDING
BURNOUT
Motor burn complete
Note: Flight profile animation requires your altimeter to be mounted in a fixed orientation that you choose in your settings. For best results please calibrate your sensors as well.
User notes
This second 200Hz Nano test shows the fixed altitude floor and t=0 detection.
We do however run into a new bug with the synchronising of the accelerometerIMU data to the pressure line.
This has always worked before as its look-back of 166 samples was sufficient for 50Hz logs and just scrapes through on 100Hz logs. At 200Hz though it didn't reach the start of the motor burn from launch detection so failed.
This has been fixed with a time-based look-back rather than sample-based and is now operational on the released firmware correctly.
Early and incorrect detection of the ejection was caused by the Nano bouncing around in the rocket as I threw it in loose. We'll add protection against this in the next firmware (1.53) It's the first time we've seen it happen so it's quite rare!
We do however run into a new bug with the synchronising of the accelerometerIMU data to the pressure line.
This has always worked before as its look-back of 166 samples was sufficient for 50Hz logs and just scrapes through on 100Hz logs. At 200Hz though it didn't reach the start of the motor burn from launch detection so failed.
This has been fixed with a time-based look-back rather than sample-based and is now operational on the released firmware correctly.
Early and incorrect detection of the ejection was caused by the Nano bouncing around in the rocket as I threw it in loose. We'll add protection against this in the next firmware (1.53) It's the first time we've seen it happen so it's quite rare!
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Flight images (0)
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Linked rocket
✅ Active
1
Klima Pegasus - Test Beast
Klima — Pegasus RTF
✈️ 2 flights linked
Type
Kit build
Diameter
35mm
Length
495mm
Dry weight
80g
Stages
1
Recovery
Parachute
Device information
Nano V1
This flight was flown on a Nano V1.
Hardware version
Rev 4
Software version
1.52
Last online
10/06/26-21:24:48
Pressure sensor
Bosch BMP 581
Accelerometer
32G 3-axis
Gyroscope
2000 dgps 3-axis
Flight motors
1st Stage
1x
Klima
C6-5
Burn time
1.60 seconds
Diameter
18.00 mm
Average thrust
6.00 N
Max thrust
15.00 N
Impulse
10.00 Ns
Impulse class
C
Total weight
20.50 g
Propellant weight
9.60 g
Propellant type
composite
Links
Add this device to your account to edit
Motor burn
The dashed line is the combined thrust curve for your motors (data from thrustcurve.org), scaled so its peak matches the recorded acceleration maximum — the shape is meaningful, the absolute level is not (your rocket's weight is unknown).
Launch site, date & time
Click anywhere on the map to mark your launch site. Switch between map and satellite view using the buttons below.
No results found — try a different search.
Click the map to place a marker · Drag to adjust
Lat—
Lng—
✓ Launch location saved successfully.
✗ Could not save location — please try again.
Flight comparison
Comparing against 13 other flights with the same motor configuration.
Highest apogee150.1 m 4th of 11
The maximum altitude reached above the launch point.
you
best
best 199.39 m · Flight #1246
Best stability68.3 /100 10th of 11
How straight it flew: launch, coning and thrust straightness combined. 100 is perfect.
you
best
best 93.5 /100 · Flight #1360
Fastest velocity55.3 m/s 2nd of 11
Peak ascent velocity recorded during the flight.
you
best
best 61.1 m/s · Flight #1146
Best avg burn G1.36 G 10th of 11
Average acceleration during the motor burn, in G.
you
best
best 3.56 G · Flight #1246
Longest flight39.21 s 6th of 11
Total recording time from launch to landing.
you
best
best 52.3 s · Flight #1333
Lowest spin98.05 dps 7th of 11
Average spin rate during the burn.
you
best
best 53.82 dps · Flight #1333
🌲 Is it in a tree?2.38 m 1st of 11
Just for fun: whichever flight came down closest to 8 m above the launch point (roughly tree height) is the one most likely stuck up a tree.
8 m
you
best
closest to 8 m · you at 2.38 m
General flight settings
This is a snapshot of the settings that were used for this flight. pop over to the
pop over to the My devices page and then Configure settings on the device..
Forecast pressure
i
Set this to your local forecast pressure at sea level. This will offer you slightly improved accuracty for your flight, although it's not 100% essential every little helps!
Xcweather.co.uk is a decent place to grab pressures from for your location and time.
Xcweather.co.uk is a decent place to grab pressures from for your location and time.
1013.2 mbar
Launch detect
i
This is the altitude above the launch pad altitude where the altimeter will trigger itself into recording / flight mode.
The altimeter keeps a constant average of the pressure while waiting for launch, it uses a simple algorithm and the pre-flight buffers to do this. The most recent 120 samples (~4 seconds) are ignored so your pre-trigger altitude won't effect the ground baseline.
For almost all uses we suggest keeping this on the 25 Meter (~82 feet) default settings. If you want to test your altimeter by throwing it in the air, or are planning a very low flight you may want to lower the setting.
The altimeter keeps a constant average of the pressure while waiting for launch, it uses a simple algorithm and the pre-flight buffers to do this. The most recent 120 samples (~4 seconds) are ignored so your pre-trigger altitude won't effect the ground baseline.
For almost all uses we suggest keeping this on the 25 Meter (~82 feet) default settings. If you want to test your altimeter by throwing it in the air, or are planning a very low flight you may want to lower the setting.
30 meters
Sample ratio
i
The altimeter runs at 50Hz however you can record every sample or every X samples in order to extend the log time. For example if you set the ratio to 1 it will save 1:1 samples, or if you set it to 3 it will save 1 in 3 samples.
1:1 (50Hz)
Max samples
i
This is the maximum samples the altimeter will log per flight. When it reaches this amount it will stop and save the recording.
0
Recording stop
i
This setting is how the altimeter decides to stop recording. You can choose either 450 (~9s) or 900 (~18s) samples stable or it will record until the max samples limit unless you press the BUTTON in Manual stop mode.
The samples stable method waits for the devices altitude not to change for the set number of samples. This is defined by not changing by more than +/- 1.0 meters for 98% of the samples, it's a reliable method to stop the recording after landing within 8-10 seconds (300 sample) or 16-20 seconds (600 sample).
The samples stable method waits for the devices altitude not to change for the set number of samples. This is defined by not changing by more than +/- 1.0 meters for 98% of the samples, it's a reliable method to stop the recording after landing within 8-10 seconds (300 sample) or 16-20 seconds (600 sample).
Auto: 450 samples stable (~9s)
Oversampling
i
Oversampling is a internal setting of the BMP 390 pressure sensor. It is how many samples are taken for each reading. By taking multiple samples for each pressure reading the altimeter reduces noise and increases the resolution of the output.
The sensor can run at 50 samples per second in 4X mode, so we suggest leaving it in this mode as it will offer the highest accuracy.
The sensor can run at 50 samples per second in 4X mode, so we suggest leaving it in this mode as it will offer the highest accuracy.
16x Oversampling
IIR filter
i
The IIR filter is another internal sensor for the BMP390 pressure sensor. It is a Infinite impulse response filter used to enhance pressure measurement accuracy by reducing noise. It's primarily for smoothing out rapid pressure changes.
We suggest not setting this too high as it will cause delay to changes in altitude if set very high.
We suggest not setting this too high as it will cause delay to changes in altitude if set very high.
COEFF 7
Pressure filter
i
This filter is a software Kalman filter that runs on the altimeters processor.
The Kalman filter uses a prediction step based on a system model and then a correction step using new measurements to refine its estimate, it creates accurate most certain results from data with noise in it.
The Kalman filter uses a prediction step based on a system model and then a correction step using new measurements to refine its estimate, it creates accurate most certain results from data with noise in it.
TruePath 1.0
Sample speed
i
The sample rate of the altimeter's sensors. 50Hz takes 50 samples per second, 100Hz takes 100 samples per second for higher resolution data.
200 Hz
Hybrid mode
i
When enabled, the altimeter records at full speed during ascent then switches to half speed after apogee to extend recording time during descent.
Enabled
Sync sensors
i
The filters on the pressure sensor can cause it to lag very slightly behind the Accelerometer and Gyroscope data.
The Sync sensors option detects how far out of sync these sensors are. It then corrects the Acceleration and Gyroscope readings to match the pressure sensor.
ENABLED
Orientation
i
This is the orientation you intend to install the Altimeter in your rocket. It's needed to ensure completly accurate angles and orientation charts and reports. Check out the Manual for more information on this.
Down (text up)
IMU filter
i
The IMU filter, or fusion filter takes the data from each axis of the Gyroscope and Accelerometer to calculate the Pitch, Roll, Yaw and tilt angle from vertical.
These filters can build up some discrepency over time so it's important to calibrate your sensors to minimise this.
Madgwick 6-Axis
Launch ALP
i
This is prevention against accidental launch detection.
With this disabled the launch is based only on pressure and something that creates a low pressure can trigger the flight by accident. For example pulling your nose cone off can even trigger it.
With this enabled the rocket also needs to have seen 8 samples (0.25 seconds) of acceleration above this setting in the last 3 seconds as well as the pressure drop to trigger. There is a backup trigger of 1.05 seconds of altitude being above the launch detect setting too.
There are very few situations where this option would cause issues, so we suggest leaving it on.
With this disabled the launch is based only on pressure and something that creates a low pressure can trigger the flight by accident. For example pulling your nose cone off can even trigger it.
With this enabled the rocket also needs to have seen 8 samples (0.25 seconds) of acceleration above this setting in the last 3 seconds as well as the pressure drop to trigger. There is a backup trigger of 1.05 seconds of altitude being above the launch detect setting too.
There are very few situations where this option would cause issues, so we suggest leaving it on.
1.5G
Launch lock
i
When enabled, the altimeter locks out recording for a set period after power on to prevent false triggering during setup.
DISABLED
Static temperature
i
A fixed temperature value used for altitude calculation when the external temperature sensor is disabled or not connected.
15 °C
Sensor calibration
Calibration offsets used during this flight.
Gyroscope
X
2.000°
Y
0.000°
Z
0.000°
Accelerometer
⚠ Accelerometer has not been calibrated
X
0.000 mG
Y
0.000 mG
Z
0.000 mG
Comments
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