Data Storage & Memory: About Upload – UNISTELLAR Help Center

Sharing your observation data is not mandatory – we do not have access to it unless you choose to share it. The data collected by your UNISTELLAR telescope during each observation is stored locally in its memory. It includes raw data (images) captured in Enhanced Vision or during scientific missions, as well as metadata (geolocation, timestamps). This data can be uploaded to our servers via the UNISTELLAR app to participate in citizen science campaigns or community events.

Key information (applies to all UNISTELLAR telescopes: eVscope, eQuinox, Odyssey and Odyssey Pro)

The telescope’s memory only fills up when you use Enhanced Vision or Science Observation modes.
Saving photos on your smartphone or tablet does not use the telescope’s memory.
Storage capacity varies by model, ranging from an average of 7 to 35 hours of Enhanced Vision.
In Science Observation mode, exposure time is shorter, so the number of images is higher, which fills the memory faster.
Even with full memory (100%), your telescope will continue to function normally and you can still save images. However, you won’t be able to participate in citizen science campaigns until the memory is cleared.
Storage information can be found in the "User" tab of the UNISTELLAR app.

Where are your images stored?

The stunning photos you capture during your observations are saved on your smartphone, not on the telescope itself. This means only your smartphone’s storage space is used for images saved via the interface.

How to upload your data from the telescope?

To free up memory, it is recommended to regularly upload your observation data to our servers. Here are the steps to follow:

1-Connect your smartphone or tablet to your telescope.

2-Go to the "My Telescope" tab in the app.

3-If data is present, the "Upload" button will be active (otherwise it will be grayed out).

4-A page listing your available observations will appear. You can then:

Click on "Upload remaining observations" to send all available data,
Or choose "Delete all observations" if you do not wish to keep them.

5-Enter the name and password of your home Wi-Fi network or mobile hotspot. The SSID (network name) is case-sensitive.

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6-Before confirming, you can choose to delete the data once the upload is complete and to automatically turn off the telescope.

7-Click "Confirm".

The telescope’s LED will blink bright yellow, indicating it is trying to connect to the network. During this step, your device will disconnect from the telescope. If the transfer is interrupted, the upload will automatically resume from where it left off.

Meaning of LED blinking

Green blinking (1 to 5 times) then steady: upload successful. The number of blinks indicates how much data remains to be transferred.
Orange steady: upload failed (often due to an incorrect SSID or password).

Progress scale:

5 blinks = 0 to 20% progress
4 blinks = 21 to 40%
3 blinks = 41 to 60%
2 blinks = 61 to 80%
1 blink = 81 to 100%

Check if the transfer was successful

Once the transfer is complete, reconnect your smartphone to the telescope’s Wi-Fi and return to the "User" tab. After a few minutes, the storage gauge should show a very low level (e.g., "1% used").

After uploading

Once your data is sent, our science team takes over to analyze it. You can then track the process and access the results in your Science Space on the UNISTELLAR website.

Tip: regular users usually perform this upload after each observation night, or as soon as the memory nears the remaining 20%.

Tip: you can start the upload before going to bed. Just leave the telescope on: the transfer will complete during the night.