Sakura APRS mission

According to CitGardens X, Sakura sent an APRS beacon on 145.825MHz from 2024/09/19 15:08-15:38(UTC).

The transmission started as scheduled, first report was observation #10268108 received by IK1JNS-VHF. Sakura says “Hello World! This is SAKURA.”, but recieved data was something strange.

2 Likes

CitGardens say: “The APRS beaconing will begin at around 06:50 (UTC) over North America and will last for approximately 30 minutes until it reaches South America.”

2 Likes

Next transmission 2024-09-20 06:50 UTC for about 30 minutes only.

Twitter: citgardens

2 Likes

Next beacon transmissions SKD from this tweet.

| 9/21 05:56-06:26 | North America - South America |
| 9/21 13:10-13:50 | Africa - Japan                |
| 9/21 16:07-17:17 | South America - Australia     |
| 9/22 07:43-08:03 | Inida - Japan                 |
| 9/22 13:33-14:43 | South America - Australia     |
2 Likes

is it UTC or JST?

SKD is UTC!

1 Like

I’ve extended the Digipeater Dashboard to also show SAKURA’s digi messages.

3 Likes

New APRS SKD from 9/23-9/29 from CitGardens. See CitGardens X.

Sakura will switch to user message mode from wednesday. This mode is not a digipeater! They explains about this mode at X.

1 Like

The APRS schedule will be changed due to camera mission.
The updated time is 09/26 from 13:27 (UTC) to 15:12 (UTC).

4 Likes

I did not receive any packet on 145.825 over Europe on 25th 12:56 and today 15:12.

Same here, nothing seen

1 Like

In the current mode, SAKURA has max wait time of 2min. If SAKURA does not recieve any message for 2min, APRS mode will be over.
I think this is probably the cause.

1 Like

I understood that according to the schedule SAKURA will send programmed messages unsolicited (in 1 minute interval).

Did I get you right that we have to send a message first within 2 minutes after APRS mode has activated (times from schedule) and only then SAKURA will start sending out the programmed messages?

Daniel

1 Like

Your understanding is correct! In addition, not only first but also every 2min after sending programmed messages.

2 Likes

But at 13:38 UTC this was the telemetry from Sakura. It says NO APRS.


At that time and the next pass at I sent APRS messages to sat but no answer. When do you plan do activate the APRS messaging functionality again?

73 de David EA4SG

2 Likes

The digipeater was up and running today’s JA path. :worried:

Fm JI1IZR To CQ Via JS1YNI* <UI pid=F0 Len=36 PF=0 >[12:31:53]
=3521.15N\13917.30ESHello Via SAKURA

Fm JE1CVL To CQ Via JS1YNI* <UI pid=F0 Len=27 P=0 >[12:32:33]
:JI1IZR   :Ur 599 de JE1CVL
2 Likes

I’ve extended the SAKURA section on dashboard Digipeater Overview to also show digipeated messages.

2 Likes

The APRS on 9/26 at 13:38 (UTC) was rescheduled to 15:12~.
You’ll see the time when you look at the schedule.
schedule(9/23~9/29 UTC)

Is the NORAD ID 60954? Because the Sakura schedule for 28th September (today) for south-east Asia doesn’t match any satellite pass over south-east Asia! (according to N2Y0 pass data for 60954, and N2Y0 says 60954 was launched in 1998…)

60954 was assigned indeed to SAKURA.