Vol 2858
Flight 2858
Mercury V1 Rev 1 · firmware 2.41
Apogée
367.68m
9.2 s after launch
Max. montée
77.99m/s
peak ascent
Max. pendant combustion
6.66G
during the burn
Atterrissage
92.68s
touchdown 4.29 m/s
ZOOM TO
s
s
Résumé du vol
The flight, moment by moment
Liftoff
0 s
Inclinaison rampe6.20°
Thrust calc pad tilt4°
Launch detected
1.11 s
Altitude35.02 m
Vitesse48.48 m/s
Fin combustion (premier)
2.2 s
Altitude112.04 m
Vitesse76.330 m/s
Apogée
9.2 s
Altitude367.68 Mètres
Incl. max. jusqu’à fin comb.25.76°
Éjection possible
9.686 s
Altitude365.84 m
Vitesse-6.92 m/s
Atterrissage
92.67 s
Altitude-3.05 m
Max. descente-14.91 m/s
Stabilité88.2%Excellent
Inclinaison à la fin de combustion (20%)89.8
20% · Launch tilt 4°
Tangage/lacet (30%)97.4
25% · Coning 16.1/24.5°/s
Coning · boost (25%)94.3
25% · Spin 176.1°/s
Rectitude de poussée (15%)74.5
30% · Thrust 94.5%
Rocket information
Calculated from the flight data alone
Boost acceleration34.7 m/s²
average over the burn · 3.5 g
Coast deceleration10.9 m/s²
average · gravity plus drag
Ballistic coefficient749 kg/m²
fitted to the 7.00 s coast
Apogee lost to tilt0.89 m
flown vertical ≈ 368.5 m · from the thrust-calculated tilt
Chute opening peak37.86 G
largest deceleration after ejection
Average descent rate4.44 m/s
ejection to landing · 82.98 s
Batterie & température 0% → 0% · Température début 26.41 → 26.89 °C · Lancement après démarrage 20m 40s
Altitude
Apogée367.68 Mètres
Temps jusqu’apogée9.2 s
Altitude fin combustion112.04 m
Altitude vitesse max.75.26 m
Altitude éjection365.84 m
Altitude atterrissage-3.05 m
Altitude enregistrement329.73 m
Vitesse
Max. montée77.98 m/s
Max. descente-14.91 m/s
À fin combustion76.330 m/s
Vitesse descente-4.391 m/s
Vitesse éjection-6.92 m/s
Vitesse atterrissage-4.291 m/s
Accélération
Max. pendant combustion6.66 G
Max. montée6.66 G
Max. descente37.86 G
Moy. montée0.21 G
Moy. combustion3.57 G
Temps
Fin combustion (premier)2.2 s
Apogée9.2 s
Éjection possible9.686 s
Atterrissage92.67 s
Sortie #1 ON0 s
Sortie #1 OFF0 s
Angles
Inclinaison rampe6.20°
Thrust calc pad tilt4°
Incl. max. jusqu’à fin comb.25.76°
Roulis au lancement-6.17°
Tangage au lancement0.63°
Rotation max. (comb.)311.16 dps
Rotation moy. (comb.)162.19 dps
Recovery
Single deploy
No dual deploy detected on this flight.
Général
Date envoi28-Aug at 15:33
Échantillons10280
Durée totale enregistrement109.200 s
Moy. échantillons/s94.1
Nombre de verrouillages1
Lancement après démarrage20m 40s
Axe de référenceX
Batterie & température
Batterie début0%
Batterie fin0%
Température début26.41°C
Température fin26.89°C
Temp. MT1 lancement0°C
Règles de sortie
Aucune règle configurée
Notes utilisateur
Aucune note
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Vidéo Youtube
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Images du vol 0
Aucune image
Moteurs du vol
1st stage · 8s delay
Durée combustion
1.75 s
Diameter
38.00 mm
Poussée moyenne
236.31 N
Poussée max.
313.69 N
Poids total
400.00 g
Poids propergol
204.00 g
Type propergol
Blue Streak
Liens
Impulsion413Ns
Poussée max.313.6N
Durée combustion1.75s
Classe impulsionI
1st stage thrustloading curve…
Motor data by ThrustCurve.org
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Fusée associée
Aucune fusée associée à ce vol
Flight mass
Liftoff mass3774.9gestimated
Mass at burnout3570.9gestimated
No mass is set for this flight, so Motor thrust (N) uses a mass estimated from the measured burn and the motors’ rated impulse. Set the rocket’s mass for the measured impulse and specific impulse.
Motor thrust (N) is on the chart, under Acceleration.
Rule events
No output rules fired during this flight.
Correspondance moteur (BETA)
Encore en phase de test ! Nous cherchons à deviner quel moteur a été utilisé.
Marque
Moteur
Score
Forme
Comb.
Cesaroni
F31-CL
127
93%
98.1%
Cesaroni
H151-RL
109
84.6%
93.8%
Cesaroni
H233-RL
109
84.9%
90.1%
AeroTech
K1103X
109
85%
94.7%
Cesaroni
131-G84-GR-10A
104
86.3%
92.4%
Loki
G69-SF
104
88.2%
91.9%
Cesaroni
H200-BS
104
84.6%
90.4%
AeroTech
I300T
104
86.2%
90.1%
AeroTech
J500G
104
87.9%
93.7%
Loki
G80-LW
102
86.7%
88.9%
Linked flights
No linked flights yet.
Site de lancement, date & heure
Imagery © Esri, Maxar, Earthstar Geographics
Cliquez sur la carte · Glissez pour ajuster
Canopy height from the Meta and WRI High Resolution Canopy Height Maps v2 (Meta and World Resources Institute, 2026; source imagery © 2016 Vantor), used under CC BY 4.0. Ground elevation built from Terrain Tiles (Mapzen and AWS Open Data), derived from 3DEP and GMTED courtesy of the U.S. Geological Survey, SRTM courtesy of NASA, and ETOPO1 courtesy of NOAA. Map and imagery credited on the view above.
No launch site has been set for this flight.
No conditions have been recorded for this flight.
About sea-level pressure and QNH
Sea-level pressure is kept as given: the model’s own, or the figure entered from a forecast or report. QNH is that pressure the way an altimeter setting means it, through the standard atmosphere, and is what the adjusted apogee and the adjusted CSV use.
Model values, not observations. NOAA GFS: weather data by Open-Meteo.com (CC BY 4.0). Ensemble: NOAA GEFS.
Animation des données
FLIGHT 2858
367.68 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 : L’animation de vol nécessite que votre altimètre soit monté dans une orientation fixe. Calibrez vos capteurs pour de meilleurs résultats.
Mercury V1
Ce vol a été effectué sur un Mercury V1.
The hardware
Version matérielRev 1
Version logiciel2.41
Dernière connexion28-Aug at 15:39
Capteur pressionBosch BMP 390
Accéléromètre32G 3-axis
Gyroscope2000 dgps 3-axis
MagnétomètreN/A
Flights from this altimeter
2 of 2
Settings, as they were for this flight
Paramètres généraux
Pression prévue
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
Détection lancement
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.
35 meters
Ratio échantillonnage
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.
1:5 (hybrid, reduces after apogee)
Max. échantillons
i
This is the maximum samples the altimeter will log per flight. When it reaches this amount it will stop and save the recording.
18000
Arrêt enregistrement
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)
Suréchantillonnage
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
Filtre IIR
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
Filtre pression
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.
Kalman 2 (default)
Changement verrouillage
i
This is how we detect a lockout. If the pressure changes by this much in a single sample downwards (pressure increase, lower altitude) then it's likely to be a false reading. Multiply the setting by 32 to get the speed in meters per second that it will trigger at.
0.5 meters
Synchro capteurs
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.
ACTIVÉ
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.
Upwards (text up)
Filtre IMU
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
ALP lancement
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.
1.4G
Verrouillage lancement
i
When enabled, the altimeter locks out recording for a set period after power on to prevent false triggering during setup.
DISABLED
Température statique
i
A fixed temperature value used for altitude calculation when the external temperature sensor is disabled or not connected.
15 °C
Capteur temp.
i
If an external MT1 temperature sensor is connected, this controls whether it is used for logging only or also for altitude calculations.
DISABLED
Paramètres de sortie
Arm switch
i
When enabled, GP6 is a hardware arm switch — outputs and rules are held off until the switch is closed to ground.
DISABLED
Startup lockout
i
Outputs and rules are blocked for this many seconds after power-on while sensors settle. 0 = off.
None
Launch confirm delay
i
After launch is detected, outputs and rules won't fire until this many seconds have passed.
2 s
Altitude floor
i
Outputs and rules are blocked until the rocket is at least this height above the launch pad.
50 m
Custom dataset 1
i
User-defined expression evaluated per sample, available for charting.
—
Custom dataset 2
—
Étalonnage capteurs
Décalages de calibration utilisés pour ce vol.
Gyroscope⚠ Le gyroscope n’a pas été calibré
X0.000°
Y0.000°
Z0.000°
Accéléromètre⚠ L’accéléromètre n’a pas été calibré
X0.000 mG
Y0.000 mG
Z0.000 mG
Paramètres appareil
TAG appareil
i
A custom name or tag assigned to this device for easy identification.
Merc2662
Langue
i
The language setting configured on the device.
🇬🇧 English
Mode arrêt
i
Controls what happens after recording. Standard shuts down normally, Delayed keeps WiFi on for 30 seconds after landing, Stay on keeps the device powered on.
Delayed 30s
Luminosité LED
i
The brightness level of the LED indicators on the Mercury. Lower values save battery.
20%
Puissance WiFi TX
i
WiFi transmit power level. Higher gives better range but uses more battery.
2 dBm (low)
Mode veille
i
Controls whether the device enters low-power sleep when idle.
Normal (sleep when idle)
Surveillance batterie
i
Monitors battery voltage during the flight.
DISABLED
Groupe cloud
i
The cloud group / category this flight is assigned to.
General use
Ports GP6 / GP7
Configuration des ports GP6 et GP7 pour canaux pyro, servos ou autres appareils.
Mode canal 6
ON = HIGH
Ch6 min pulse (µs)
1000
Ch6 max pulse (µs)
2000
Ch6 frequency
50 Hz
Ch6 angle ON
170°
Ch6 angle OFF
10°
Ch6 on time
2s
Mode canal 7
ON = HIGH
Ch7 min pulse (µs)
1000
Ch7 max pulse (µs)
2000
Ch7 frequency
50 Hz
Ch7 angle ON
170°
Ch7 angle OFF
10°
Ch7 on time
2s
Carte servo I2C PCA9685
Configuration de la carte servo externe I2C PCA9685 avec jusqu’à 6 canaux servo supplémentaires.
Aucune carte servo I2C n’était connectée pour ce vol.
Prédiction et aérofreins
Le Mercury peut prédire l’apogée pendant la phase de vol libre. Ces paramètres contrôlent le calcul et le système d’aérofrein.
Masse sèche
i
The total mass of the rocket after motor burnout (dry mass). This is used for the ballistic prediction of apogee altitude. Enter the mass without the motor propellant, or the mass at burnout.
0.15 kg
Coefficient Cx
i
The aerodynamic drag coefficient (Cd) of the rocket. This is used with the rocket area to calculate aerodynamic drag during coast. A typical model rocket has a Cd of 0.4 to 0.8. You can find this value from OpenRocket or RockSim simulations.
0.75
Surface référence
i
The cross-sectional reference area of the rocket in square meters. This is typically the area of a circle with the body tube diameter. For example a 38mm tube has an area of approximately 0.00113 m².
0.001 m²
Gas constant
i
The specific gas constant for dry air, used in the atmospheric model for altitude and density calculations. The standard value is 287.05 J/(kg·K). You shouldn't need to change this unless you know what you're doing.
287.05 J/(kg·K)
Les paramètres suivants configurent le système d’aérofrein.
Aérofrein activé
i
Enables or disables the active air braking system. When enabled, the Mercury will deploy air brakes via the configured servo channel to try and reach the target altitude. Firmware 2.1+ required.
OFF (default)
Servo channel
i
Which servo output channel the air brake mechanism is connected to. GP6 and GP7 are the two onboard servo headers, I2C channels are for an external servo expander board.
GP6
Deploy speed
i
The speed at which the air brakes deploy. The Mercury gradually increases the servo angle until the predicted apogee matches the target rather than going full on/off. This setting controls how quickly it ramps up to full braking.
Medium (default)
Altitude cible
i
The target apogee altitude in meters. The air brake system will try to slow the rocket so it reaches this altitude.
300 m
Over shoot %
i
The percentage over the target altitude to aim for until within 15% of the target. This helps prevent undershooting if the prediction is slightly off early in the coast. For example, with a 1000m target and 5% early adjustment, the Mercury will aim for 1050m until it passes 850m.
5%
Activation altitude
i
The air brake system activates after burnout, but won't engage until the rocket has reached this percentage of the target altitude. This prevents the brakes from deploying too early when predictions may be less accurate.
20% (default)
Files
Where the altimeter signs its log, the file carries that signature and a tick beside it. A tick means the data is unchanged since the device wrote it, which is what a record claim needs.
CSV
2858.csv
The log as columns of text. Opens in a spreadsheet, and in every simulator that reads flight data.
841 KB
JSON
2858.txt
The altimeter's own notes on the flight: what it recorded, what it decided, and why. Later firmware writes this as JSON.
3 KB
JSON
2858_settings.txt
The settings the altimeter was running when it flew, exactly as it saved them alongside the log.
2 KB
Adjusted CSV2904 recalculated in your browser
The log recomputed for your own sea-level pressure and temperature. Columns: time, altitude as recorded and adjusted, raw altitude as recorded and adjusted, pressure.
This file is built here from the signed log, so it carries no signature of its own. Anyone verifying a claim should be sent to the flight page and build their own from the original.
Custom CSVbuilt in your browser
Pick any of the chart’s data sets, the worked-out ones included, and the part of the flight to cover. Values come in the units the chart is set to.
Data sets
Time span
One row for every time any chosen data set has a sample. A data set with no sample at that time is left blank rather than filled in. Built from the chart’s data, so it carries no signature.
Share this flight
Anyone with the link can view this flight; nothing else on your account is shared.
Chart snapshot
A PNG of the chart exactly as you have it set right now: the series you have switched on, your zoom, your labels and any pressure correction applied.
Hotlink images
Stored images of the whole flight, altitude only, not your current chart view. Transparent, regenerated whenever the flight changes, and safe to hotlink on a forum.
Small340 × 255
Large1000 × 750
QR code
Links to this flight page. Useful on a range card or a club display.
Commentaires
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