Seeking UHF Beacon Observations for Newly Launched T.MicroSat-1 (98515)

Satellites & Observations
1

Hello everyone,

We are from Tron Future Tech Inc., Taiwan.

Our first 8U CubeSat was launched earlier today, and we have been attempting to send commands to the satellite. However, during the past ~12 hours, we have not been able to send commands nor receive any beacon signals on the UHF transceiver.

We are extremely grateful for the community’s support in monitoring our signals, and we truly appreciate all the observations that the network has already provided. At this moment, we are trying to determine whether our UHF transceiver is still transmitting periodic beacon signals, and we are also trying to retrieve the system information encoded in our OBC beacons (also transmitted via the UHF transceiver).

Below is the information relevant to the beacon signals we are trying to receive:

  • Frequency: 401.025 MHz (UHF transceiver)

  • Beacon intervals:

    • UHF beacons every 60 seconds (each with ~3 AX.25 frames)

    • OBC beacons every 60 seconds (each with ~15~20 AX.25 frames)

  • Source callsign: TRON 1

  • Destination callsign: ESGS01

  • Example of a previous observation:
    https://network.satnogs.org/observations/12826166/

For the OBC beacon specifically, we expect AX.25 byte 4 (after the AX.25 header) to be 0x33, and the beacon payload typically begins with something like:

8A A6 8E A6 60 62 E0 A8 A4 9E 9C 40 62 E1 03 F0 xx 11 01 33 ...

We would like to humbly request assistance from anyone with UHF reception capability to help check whether any OBC beacon frames have been received today. Even a partial frame, waterfall detection, or raw IQ snippet would be extremely helpful for us during LEOP.

We sincerely appreciate any support, hints, or observations you can share.

Best regards,
Tron Future Team
tron_satellite@tronfuture.com

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During 1st or 2nd pass I had sth like this it could be either your T.MicroSat-1 or Spin2 or Otter

Also here you can check observations that @fredy scheduled and potentially vet them if you recognize you sat in the waterfall: SatNOGS Network - Observations

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29FEF16E90A0BCA56AFAD1C37FC5129D0FD2E9C36C7E5F8AFDC50B60E6EBAEA03A2B168A3E037FB6C437
8AA68EA66062E0A8A49E9C4062E103F0A011018054726F6E2031
8AA68EA66062E0A8A49E9C4062E103F0A11101824333BA660100B50000000C0000008882A01C0000000000007D0000000000000000000000
47FEF16E90A0BCA56AFAD1C37FC5129D0FD2E9C36C7E5F8AFDC5765CB450155E10759A3609513B118E3A8E1F0BCA12657A304B49C46DC4BFFCF56479A0F38A14311C4FCF7B302EBA

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Seems Very good Signal over Alberta Canada and Lots of Data.

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Hello again,

First of all, thank you all very much for sharing your observations of our satellite. Shortly after we made this post, we were able to send commands and receive responses via the UHF transceiver.

SatNOGS observations have also confirmed that the satellite has been transmitting beacon messages. At the moment, the UHF transceiver is configured to transmit at least three beacon signals every 60 seconds; one of them is a text beacon containing Tron 1.

We would like to express our gratitude to the community again for helping us get through the past week. We really appreciate all past observations and would be grateful for any future ones as well.

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