Epsilon F5 - 2021-11-09 00:55:16 UTC

[fredy]

Moved TLE sets to fit the new launch datetime (from 2021-11-09 00:51:21 to 00:55:16):

NanoDragon
1 99515U 14900A   21313.08879630  .00000000  00000-0 -42734-5 0    03
2 99515  97.5940  12.8685 0020609 231.9799 173.8793 15.02587040    02
KOSEN-1
1 99516U 14900A   21313.08785881  .00000000  00000-0  00000-0 0    02
2 99516  97.6000  12.6551 0006300 217.1100 187.2500 15.03490531    09
Z-Sat
1 99517U 14900A   21313.08773148  .00000000  00000-0 -22037-6 0    07
2 99517  97.6376  12.6527 0016731 210.3924 189.7154 15.01984776    06
TEIKYOSAT-4
1 99518U 14900A   21313.08773148  .00000000  00000-0 -22037-6 0    08
2 99518  97.6376  12.6527 0016731 210.3924 189.7154 15.01984776    07

Due to the 4min difference I have re-scheduled the observations for the first 8 hours and also schedule for the next 4 hours. So, we have observations for the first 12hours. Good luck!

[fredy]

A quick note, it seems that ELFIN-A (43617) will be in most of the TEIKYOSAT-4 observations as it transmits on the same frequency and has similar orbit.

[NanoDragon]

Anyone got any sound?
We missed the first pass here in VN for our satellites :)))))) nothing heard

[fredy]

Nothing yet, but most of the observations where almost done during the deployment. Let’s wait the next bunch of observations.
You can also check at SatNOGS Network - Observations

[NanoDragon]

Thanks, I’m checking the observations, next attempt will be about 12 hours from now

[NanoDragon]

NanoDragon TLE based on new orbital elements updated by Jaxa after launch:

NanoDragon
1 99515U 14900A   21313.08812500  .00000003  00000-0  24700-6 0 00009
2 99515 097.5946 012.6133 0022170 230.7835 174.8833 15.02657479000334

[fredy]

I’ve updated the TLE set for NanoDragon, after fixing the checksum, so the fixed TLE set is:

NanoDragon
1 99515U 14900A   21313.08812500  .00000003  00000-0  24700-6 0 00002
2 99515 097.5946 012.6133 0022170 230.7835 174.8833 15.02657479000333

Until now only KOSEN-1 is received.

[PE0SAT]

Z-SAT is also been received by JA0CAW

[fredy]

We have received also Z-Sat and TeikyoSat-4 (faint signal) CW signals in Network, unfortunately nothing yet from NanoDragon. So…

• KOSEN-1 first received by @yd7oiz station "2411 - YD7OIZ-UHF " in observation 4977636. Here is a list with good observations of the satellite.
• Z-Sat fist received by @denizmenekay station “905 - Troy-1 GS” in observation 4977714. Here is a list with good observations of the satellite.
• Teikyosat-4 fist received by @sputnix station “611 - SPUTNIX-exp-VHF/UHF-” in observation 4977464. Here is a list with good observations of the satellite.

[fredy]

If any of the station owners that received signals of KOSEN-1 or Teikyosat-4 wants to report the reception check the links bellow:

For KOSEN-1 you can find details in KOSEN-1.
For Teikyosat-4 check this page.

[fredy]

Some TLE set updates:

From Teikyosat-4 team, changed to have the temporary NORAD ID we use in DB:

TeikyoSat-4(Ooruri)
1 99518U 88888B   21313.08454861  .00000000  00000-0  00000-0 0  9998
2 99518  97.5972  12.6039 0003973 118.2119 268.1913 15.00001409 00009

From @EelkeVisser analysis with strf tools for KOSEN-1:

KOSEN-1
1 99516U          21313.08785881  .00000000  00000-0  00000-0 0    08
2 99516  97.6000  12.6551 0006300 217.1100 186.9463 15.02784848    09

It seems that the produced TLE set for KOSEN-1 fits better Z-Sat than the current one we use, so I’ve also changed the TLE set of Z-Sat:

Z-Sat
1 99517U          21313.08785881  .00000000  00000-0  00000-0 0    09
2 99517  97.6000  12.6551 0006300 217.1100 186.9463 15.02784848    00

[EelkeVisser]

Space track has just released the tle’s for this launch. Celestrak shows them in a handy list:

2021-102A               
1 49395U 21102A   21313.56753003 -.00000058  00000-0  00000+0 0  9998
2 49395  97.5760  13.1009 0008973 283.1198 189.2986 14.99774894    71
2021-102B               
1 49396U 21102B   21313.57545742 -.00000058  00000-0  00000+0 0  9999
2 49396  97.5682  13.1089 0011564 272.4017 243.6360 15.00270683    75
2021-102C               
1 49397U 21102C   21313.57546898 -.00000059  00000-0  00000+0 0  9994
2 49397  97.5723  13.1109 0011884 265.2381 251.5203 15.00641326    74
2021-102D               
1 49398U 21102D   21313.56692750 -.00000059  00000-0  00000+0 0  9993
2 49398  97.5673  13.1021 0014527 256.4481 215.3336 15.01308185    71
2021-102E               
1 49399U 21102E   21313.57500038 -.00000060  00000-0  00000+0 0  9994
2 49399  97.5660  13.1163 0016881 250.6929 265.8047 15.01937106    73
2021-102F               
1 49400U 21102F   21313.57193757 -.00000060  00000-0  00000+0 0  9993
2 49400  97.5641  13.1090 0017670 249.9275 250.3403 15.02120639    77
2021-102G               
1 49401U 21102G   21313.57470971 -.00000060  00000-0  00000+0 0  9990
2 49401  97.5688  13.1134 0017797 247.1896 268.3384 15.02275324    76
2021-102H               
1 49402U 21102H   21313.57369412 -.00000061  00000-0  00000+0 0  9999
2 49402  97.5606  13.1067 0020571 248.3376 262.6095 15.02809459    70
2021-102J               
1 49403U 21102J   21313.56620998 -.00000061  00000-0  00000+0 0  9998
2 49403  97.5631  13.0961 0020789 246.0342 224.5237 15.02849496    70
2021-102K               
1 49404U 21102K   21313.57445213 -.00000062  00000-0  00000+0 0  9996
2 49404  97.5668  13.1115 0025420 247.0317 269.7981 15.03839856    70
2021-102L               
1 49405U 21102L   21313.61120381 -.00000683  21618-5  00000+0 0  9990
2 49405  97.6895  13.2440 0256269 146.3458 312.5717 15.57391362    89

The 49402 tle matches currently best with my STRF observation of KOSEN-1 of the previous post. But 49403 is also very close. We can not yet be sure of the identification. Fitting results:

rms limit (kHz): 2
49395 1.390 kHz 435.523405 MHz
49396 1.179 kHz 435.523677 MHz
49397 1.005 kHz 435.523898 MHz
49398 0.702 kHz 435.524282 MHz
49399 0.405 kHz 435.524656 MHz
49400 0.318 kHz 435.524765 MHz
49401 0.241 kHz 435.524861 MHz
49402 0.016 kHz 435.525165 MHz
49403 0.027 kHz 435.525189 MHz
49404 0.476 kHz 435.525762 MHz
Identified 10 candidate(s), best fitting satellite is 49402.

[K4KDR]

Congrats to everyone who has received signals from these new objects so far.

By chance does anyone know when any of these might upgrade from CW beacons to any of their more advanced downlink modes?

Thanks!

-Scott, K4KDR

[fredy]

With the new TLE sets from spacetrack.org, we have started following the OBJECTS bellow for the satellites. The TLE sets are stil TBA(to be assigned), so it is to early to do any identification:

Satellite	NORAD ID to follow	Other Candidates	Comments
NanoDragon	OBJECT K(49404)	all the OBJECTS except OBJECT L(49405) which is the rocket	random choice based on the deploymend order, as we don’t have any recption
KOSEN-1	OBJECT H(49402)	OBJECT J(49403)	-
Z-Sat	OBJECT E(49399)	OBJECT D(49308), OBJECT F(49400), OBJECT G(49401)	-
TeikyoSat-4	OBJECT B(49396)	OBJECT C(49397)	OBJECT B is much better fit than OBJECT C

Thanks to @EelkeVisser and @PE0SAT for helping with the analysis

[s59mz]

I’ve received something on NanoDragon frequency, but not sure what it is.
Here:
https://network.satnogs.org/observations/4985961/

[NanoDragon]

Thanks for letting us know.
NanoDragon beacon is set to be sent once in 3 seconds, transmitting time for each beacon signal is 0.25 seconds.

[NanoDragon]

Dear all,
We just tried 1 more pass and unfortunately nothing caught.
But I found some of your observations seem to get something that looks potential for us, though the center frequency was shifted a little.
https://network.satnogs.org/observations/4985961/
https://network.satnogs.org/observations/4980388/
https://network.satnogs.org/observations/4979841/
https://network.satnogs.org/observations/4979736/
Could you guys please get us samples with sample rate at minimum of 60k sample per second so that we can open the packet and verify it.
Thanks for your help!

P/s: Around 02:40 (UTC) yesterday (10/9/2021) we sent some commands to redeploy antennas, solar cells and reset the OBC, so we really hope these observations were positive results from our satellite. Thanks everyone for helping, any sample you get, please send us at: ndg@vnsc.org.vn

[K4KDR]

Based on the ‘possible’ NanoDragon observations, is K(49404) still the most likely object?

Thanks!

[NanoDragon]

We can’t tell right now, we can only hope while waiting for data

[fredy]

@NanoDragon

https://network.satnogs.org/observations/4985961/
https://network.satnogs.org/observations/4980388/
https://network.satnogs.org/observations/4979841/
https://network.satnogs.org/observations/4979736/

Unfortunately none of them has NanoDragon signal, for each of these observations check below:

Observation 4985961: NanoDragon (99515)

Regarding Observation 4985961 … The signal at left bottom is FACSAT-1 (43721) . The signal ta center bottom is BISONSAT (40968) which is also visible in SatNOGS Network - Observation 4986346

Observation 4980388: NanoDragon (99515)

Regarding Observation 4980388 … The signal at the left is FACSAT-1 (43721) . The signal at the right is AALTO-1 (42775), interestingly transmitting outside it’s coordinated by IARU frequency, which is 437.220MHz. Here transmits at ~437.3735MHz.

Observation 4979841: NanoDragon (99515)

Regarding Observation 4979841 … The signal at the left is FACSAT-1 (43721).

Observation 4979736: NanoDragon (99515)

Regarding Observation 4979736 … The signal is from FACSAT-1 (43721).