fredy
January 5, 2023, 5:52pm
1
fredy
January 5, 2023, 6:35pm
2
HSKSAT and SS-1 are amateur satellites both IARU Coordinated.
OPTIMAL-1 is going to transmit probably only LoRa but I haven’t found any more info, like on which frequency or other transmissions.
yd9ckh
January 6, 2023, 2:15am
3
Hi Fredy, Do you have preliminary TLE for SS-1 ?
thanks
fredy
January 6, 2023, 6:19am
4
For now we are going to use the ones of ISS:
0 ISS (ZARYA)
1 25544U 98067A 23006.05756006 .00014210 00000-0 25685-3 0 9997
2 25544 51.6453 51.6269 0004842 230.9539 326.4502 15.49956778376643
Or the same as above but with using the temporary NORAD ID of SS-1
SS-1
1 99369U 98067A 23006.05756006 .00014210 00000-0 25685-3 0 9993
2 99369 51.6453 51.6269 0004842 230.9539 326.4502 15.49956778376649
fredy
January 6, 2023, 6:39am
5
Given that the TLE will be soon deprecated, I’ve scheduled only for the first 24h:
HSKSAT: 203
SS-1: 232
Total: 435
To Station owners, have in mind that we use the ISS TLE set, so please when scheduling these satellites let some free slots/passes for ISS observing.
yd9ckh
January 6, 2023, 7:14am
6
thank you Mr fredy. Hope the deployment will successfully
1 Like
yd9ckh
January 6, 2023, 8:38am
7
Does anyone can hear beacon from SS-1?
fredy
January 6, 2023, 8:43am
8
fredy
January 6, 2023, 8:56am
9
There are some faint signals in two observations over US, but not sure if it is the satellite. Also we don’t know the modulation at UHF frequency, so we are not able to demodulate.
fredy
January 6, 2023, 10:01am
10
According to this pdf ShieldSquare Captcha it looks like that SS-1 has both UHF and VHF APRS. So, I’ve changed the FM (default for unknown modulations) with AFSK1k2 for the UHF.
1 Like
fredy
January 6, 2023, 10:29am
11
HSKSAT is alive and received. First reception by station "2148 - KK6OAK Oakwood School ".
More good observations at SatNOGS Network - Observations
fredy
January 6, 2023, 11:28am
12
2 Likes
fredy
January 6, 2023, 12:10pm
13
So, after several observations it looks like that the reception is probably AFSK1k2 and it is SS-1. However the signal is very faint to be decoded.
EDIT: @PE0SAT managed to decode the signal from SatNOGS Network - Observation 6988826
So, we have received also SS-1, however as I said the signal is faint.
Also we have reception of SS-1 on VHF too.
fredy
January 6, 2023, 12:20pm
14
First reception of SS-1 for UHF by “2579 - K9YO-UHF ” station.
First reception of SS-1 for VHF, with decoded data, by “2108 - YMCF ” station.
2 Likes
fredy
January 7, 2023, 9:17am
15
TLE for SS-1, due to the limited transmission during the passes (usually 2-3 transmissions received) the set is not very accurate:
SS-1
1 99369U 23006.23627038 .00000000 00000-0 25952-3 0 07
2 99369 51.6447 51.3209 0004899 231.6381 242.1444 15.51123116 06
TLE for HSKSAT:
HSKSAT
1 99208U 23006.23627038 .00000000 00000-0 25952-3 0 09
2 99208 51.6447 50.1068 0004899 231.6381 243.7839 15.50521196 02
ss1-3.dat (630 Bytes)
hsksat-1.dat (1.0 KB)
sites.txt (1.9 KB)
fredy
January 8, 2023, 8:43am
16
New TLE set for HSKSAT:
HSKSAT v4
1 99208U 23008.10000000 .00000000 00000-0 00000-0 0 05
2 99208 51.6447 40.9582 0004672 233.4013 213.2028 15.50823222 08
hsksat-2.dat (945 Bytes)
sites.txt (1.9 KB)
SS-1 hasn’t been received the last ~24h on both VHF and UHF.
fredy
January 11, 2023, 9:09am
17
There are TBA TLE sets by space-track.org :
0 TBA - TO BE ASSIGNED
1 55181U 98067UY 23010.72675335 .00059465 00000-0 10063-2 0 9995
2 55181 51.6418 28.4788 0003553 215.7076 144.3676 15.50982697 685
0 TBA - TO BE ASSIGNED
1 55182U 98067UZ 23010.72632007 .00043898 00000-0 74402-3 0 9996
2 55182 51.6418 28.4756 0002926 200.0166 160.0710 15.51073614 697
0 TBA - TO BE ASSIGNED
1 55183U 98067VA 23010.72636308 .00036668 00000-0 62428-3 0 9997
2 55183 51.6424 28.4760 0005361 288.0613 71.9792 15.51021213 697
For HSKSAT 55182 and 55183 are close, with 55182 being better fit. The 55181 object is separated from the other two, so it is a better candidate for SS-1 as it was deployed 1 hour earlier than the other two satellites. So, for HSKSAT we follow for now 55182 and for SS-1 we follow 55181.
2 Likes
fredy
January 15, 2023, 9:09am
18
HSKSAT is identified as OBJECT UZ (55182) , here are the ikhnos results.