Soyuz-2.1a / Fregat Baikonur launch 2021-03-22T06:07 UTC

[fredy]

@bcsak

Please, find here the description of GRBAlpha message items (in section 4): Needronix | NXTRX4 Cormorant Ham Radio User Guide

@DL4PD can you have a look?

@bcsak

It seems that the recently fetched TLE (from Space-Track) is wrong for GRBAlpha. It is clearly seen on this very good quality observation: https://network.satnogs.org/observations/3826178/

There are some more recent TLE sets from spacetrack, I’ll check which fits better to choose it.

[bcsak]

Thank you very much!

[fredy]

@bcsak it seems that the newer TLE set for OBJECT G(47938) that we follow in DB for GRBALPHA fits it well, however the new TBA(TO BE ASSIGNED) OBJECT K(47941) also fits it well, so for now let’s keep OBJECT G(47938).
More details for the rest of the satellites in my next post.

[fredy]

After 4 new TLE sets (all TBA: TO BE ASSIGNED) and in total 11 TLE sets from spacetrack we have the current results (with bold the chosen in DB and Network):

• UNISAT-7: one of OBJECT H(47939), OBJECT J(47940)
  • No official announcement of its deployment
• BCCSAT-1: no reception continue to follow OBJECT F(47937)
  • No official announcement of its deployment
• FEES: no reception continue to follow OBJECT F(47937)
  • No official announcement of its deployment
• DIY-1: no reception continue to follow OBJECT F(47937)
  • No official announcement of its deployment
• SMOG-1: no reception continue to follow OBJECT F(47937)
  • No official announcement of its deployment
• STECCO: no reception continue to follow OBJECT F(47937)
  • No official announcement of its deployment
• NANOSATC-BR2: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• KMSL: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• CANYVAL-C 1U: no reception continue to follow OBJECT G(47938)
  • No sign of signals, also we test a new frequency for it
• CANYVAL-C 2U: no reception continue to follow OBJECT G(47938)
  • No sign of signals, also we test a new frequency for it
• BEESAT-5: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• BEESAT-6: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• BEESAT-7: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• BEESAT-8: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• CUBESX-SIRIUS-HSE: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• CUBESX-HSE: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• ORBICRAFT-ZORKIY: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set. It is active on both of its frequencies.
• SIMBA: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set
• GRBALPHA: one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set
• CHALLENGEONE: no reception continue to follow OBJECT G(47938)
  • No sign of signals, also we test a new frequency for it
• KSU-CUBESAT: one of one of OBJECT G(47938), OBJECT K(47941)
  • New TLE set

No identification as we expect TBA TLE sets to be assigned and also more TLE sets.

[tjanos]

There is a small python program, to interpret the GRBAlpha telemetry data from Joe, OM3BC:
http://www.om3bc.com/docs/GRBAlpha.zip

[LW2DTZ]

Hi

Pocketqubes are free now from UNISAT-7 this morning!
STECCO and DIY-1 were copied.

Gustavo.

[fredy]

After 5 new TLE sets (all TBA: TO BE ASSIGNED) and in total 16 TLE sets from spacetrack we have the current results (with bold the chosen in DB and Network):

• UNISAT-7: one of OBJECT H(47939), OBJECT J(47940)

• BCCSAT-1: no reception changed to follow OBJECT H(47939)

• FEES: no reception changed to follow OBJECT J(47940)

• DIY-1: one of OBJECT N(47944),OBJECT P(47945), OBJECT Q(47946), OBJECT R(47947)

• SMOG-1: no reception changed to follow OBJECT H(47939)

• STECCO: one of OBJECT H(47939), OBJECT J(47940), OBJECT N(47944),OBJECT P(47945), OBJECT Q(47946), OBJECT R(47947)

• NANOSATC-BR2: one of OBJECT G(47938), OBJECT K(47941)

• KMSL: one of OBJECT G(47938), OBJECT K(47941)

• CANYVAL-C 1U: no reception continue to follow OBJECT G(47938)

• CANYVAL-C 2U: no reception continue to follow OBJECT G(47938)

• BEESAT-5: none of the objects fits, we will follow OBJECT G(47938) until TLE sets in https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt have epoch greater than 21082.59536012

• BEESAT-6: none of the objects fits, we will follow OBJECT G(47938) until TLE sets in https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt have epoch greater than 21082.59536012

• BEESAT-7: none of the objects fits, we will follow OBJECT G(47938) until TLE sets in https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt have epoch greater than 21082.59536012

• BEESAT-8: none of the objects fits, we will follow OBJECT G(47938) until TLE sets in https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt have epoch greater than 21082.59536012

• CUBESX-SIRIUS-HSE: one of OBJECT G(47938), OBJECT K(47941)

• CUBESX-HSE: one of OBJECT G(47938), OBJECT K(47941)

• ORBICRAFT-ZORKIY: one of OBJECT G(47938), OBJECT K(47941)

• SIMBA: one of OBJECT G(47938), OBJECT K(47941)

• GRBALPHA: one of OBJECT G(47938), OBJECT K(47941)

• CHALLENGEONE: no reception continue to follow OBJECT G(47938)

• KSU-CUBESAT: one of one of OBJECT G(47938), OBJECT K(47941)

No identification as we expect TBA TLE sets to be assigned and also more TLE sets.

[George-KC]

For your information BCCSAT-1 use GMSK 4K8 G3RUH
Thank you so much

[fredy]

@George-KC

For your information BCCSAT-1 use GMSK 4K8 G3RUH

Any public source for that?

EDIT I’m asking because in [AMSAT-BB] BCCSAT-1 launched into space - AMSAT-BB - mailman.amsat.org there isn’t any info about it.

[George-KC]

@fredy This link

Amateur Radio

[K4KDR]

Very strong downlink from STECCO on 435.800 1533utc

Scott Chapman (scott23192)

-Scott, K4KDR

[LW2DTZ]

DIY-1 is sending RTTY 100 BD 7N2 SHIFT 450

SATGNOS stations are receiving in wrong CW mode, please correct to USB mode
for properly decodification.

[fredy]

The transmitter is already created but not used as we don’t have a special flowgraph(gnuradio script) for USB mode, this is why we currently use the CW one. If we use the USB transmitter, SatNOGS stations will run a generic FM flowgraph.

[LW2DTZ]

Thanks for the info!

[fredy]

ChallengeOne first satellite of Tunisia has been received and for now it fits the TBA TLE set of OBJECT AA(47956).

[fredy]

Current status and fits of spacetrack TLE sets (still several TBA: TO BE ASSIGNED and missing ones), there several changes from the previous fits, as the objects are not assigned is expected to be swapped (with bold the chosen to follow in DB and Network):

• UNISAT-7: one of OBJECT N(47944),OBJECT P(47945), OBJECT Q(47946), OBJECT R(47947)
  • After a period of no signal is again transmitting, changed to follow OBJECT N(47944)
• BCCSAT-1: no reception changed to follow OBJECT H(47939)
• FEES: no reception changed to follow OBJECT J(47940)
• DIY-1: OBJECT H(47939)
  • Changed to follow OBJECT H(47939)
• SMOG-1: OBJECT H(47939)
  • Received and remains to follow OBJECT H(47939)
• STECCO: one of OBJECT H(47939), OBJECT J(47940), OBJECT M(47943), OBJECT N(47944),OBJECT P(47945), OBJECT Q(47946), OBJECT R(47947)
  • No signal received since 2021-03-24 23:55, remains to follow OBJECT H(47939)
• NANOSATC-BR2: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT V(47951)
• KMSL: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT Z(47955), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT U(47950)
• CANYVAL-C 1U: no reception continue to follow OBJECT G(47938)
• CANYVAL-C 2U: no reception continue to follow OBJECT G(47938)
• BEESAT-5: some objects fits but we will use TLE from https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt as it fits better
• BEESAT-6: some objects fits but we will use TLE from https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt as it fits better
• BEESAT-7: some objects fits but we will use TLE from https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt as it fits better
• BEESAT-8: some objects fits but we will use TLE from https://git.tu-berlin.de/rft/com/tle/-/raw/master/BEESAT-5-6-7-8.txt as it fits better
• CUBESX-SIRIUS-HSE: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT W(47952)
• CUBESX-HSE: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT V(47951)
• ORBICRAFT-ZORKIY: one of OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT Z(47955), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT X(47953)
• SIMBA: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT Z(47955), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT W(47952)
• GRBALPHA: one of OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT W(47952)
• CHALLENGEONE: one of OBJECT AA(47956) OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT Z(47955), OBJECT G(47938), OBJECT K(47941)
  • Received and changed to follow OBJECT AA(47956)
• KSU-CUBESAT: one of OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT X(47953)

No identification as we expect TBA TLE sets to be assigned and also more TLE sets, you can notice that some satellites fit on the same object. Some of the satellites fit also objects with NORAD ID 88810 and 88812 that may be some of the missing TLE sets.

EDIT: I forgot to thank @cgbsat that confirmed independently with strf observations the status and some of the fits above and found out about the 888XX TLE sets.

[fredy]

BCCSAT-1 has just been received: https://network.satnogs.org/observations/3836112/

Interesting how the CW is transmitted in relation with the GMSK signal.

Currently it fits better OBJECT N(47944), as the UNISAT-7.

[vk5qi]

The CW appears to be performed on whatever tone the GMSK packet finished up on…

[fredy]

Some changes on TLE sets we follow after @PE0SAT strf analysis:

For GRBAPLHA we now follow OBJECT G(47938)
For KSU-CUBESAT we now follow OBJECT Y(47954)

[fredy]

Current status and fits of spacetrack TLE sets (all TLE sets assigned to OBJECTS but we have missing ones for this launch), no major changes(with bold the chosen to follow in DB and Network):

• UNISAT-7: one of OBJECT H(47939), OBJECT J(47940), OBJECT N(47944),OBJECT P(47945), OBJECT Q(47946), OBJECT R(47947)
  • Added two TLE sets OBJECT H(47939) and OBJECT J(47940)
• BCCSAT-1: one of OBJECT J(47940), OBJECT Q(47946), OBJECT R(47947)
  • Changed to follow OBJECT R(47947)
• FEES: no reception changed to follow OBJECT N(47944)
• DIY-1: OBJECT M(47943)
  • Changed to follow OBJECT M(47943)
• SMOG-1: OBJECT M(47943)
  • Changed to follow OBJECT M(47943)
• STECCO: one of OBJECT H(47939), OBJECT J(47940), OBJECT M(47943), OBJECT N(47944),OBJECT P(47945), OBJECT Q(47946), OBJECT R(47947)
  • No signal received since 2021-03-24 23:55, changed to follow OBJECT M(47943)
• NANOSATC-BR2: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Changed to follow OBJECT W(47952)
• KMSL: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT G(47938), OBJECT K(47941)
  • Rejected OBJECT Z(47955)
• CANYVAL-C 1U: no reception continue to follow OBJECT G(47938)
• CANYVAL-C 2U: no reception continue to follow OBJECT G(47938)
• BEESAT-5: one of OBJECT U(47950), OBJECT V(47951)
  • Changed to follow OBJECT U(47950)
• BEESAT-6:one of OBJECT U(47950), OBJECT V(47951)
  • Changed to follow OBJECT U(47950)
• BEESAT-7: one of OBJECT U(47950), OBJECT V(47951)
  • Changed to follow OBJECT U(47950)
• BEESAT-8: one of OBJECT U(47950), OBJECT V(47951)
  • Changed to follow OBJECT U(47950)
• CUBESX-SIRIUS-HSE: one of OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Rejected OBJECT U(47950)
• CUBESX-HSE: one of OBJECT U(47950), OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
• ORBICRAFT-ZORKIY: one of OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT G(47938), OBJECT K(47941)
  • Rejected OBJECT V(47951) and OBJECT Z(47955)
• SIMBA: one of , OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Rejected OBJECT U(47950), OBJECT V(47951), OBJECT Y(47954) and OBJECT Z(47955),
• GRBALPHA: one of OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941)
  • Rejected OBJECT V(47951) and change to follow OBJECT G(47938)
• CHALLENGEONE: one of OBJECT AA(47956), OBJECT U(47950)
  • Rejected OBJECT V(47951), OBJECT W(47952), OBJECT X(47953), OBJECT Y(47954), OBJECT Z(47955), OBJECT G(47938) and OBJECT K(47941)
• KSU-CUBESAT: one of OBJECT Y(47954), OBJECT Z(47955)
  • Rejected OBJECT W(47952), OBJECT X(47953), OBJECT G(47938), OBJECT K(47941) and changed to follow OBJECT Y(47954)

No identification as we expect more TLE sets.