Transporter-4 Rideshare : CCSFS SLC-40 : 1 April 2022 (16:24 UTC)

EelkeVisser · April 4, 2022, 7:24am

Yes, I received BDSat! Doppler measurement on the CW part and the previous measurement:

Fitting for MA and MM gives a good fit. Overlaying this new TLE on the last measurement:

Please ignore, the noise signal in the bottom of the picture.

The fitted, renumbered, propagated TLE:

BDSat
1 99409U 22033H   22094.29377315  .00000000  00000-0  45608-2 0    03
2 99409  97.3913 177.1008 0012847 191.3780 179.9186 15.21934660000008
# 20220402.85-20220403.91, 79 measurements, 0.029 kHz rms

Thanks again for switching on the CW beacon! That is really helpful in doing accurate doppler measurements! I hope this new TLE will help your mission! And congrats to the whole team!! @ok2pnq @marcelfr

fredy · April 4, 2022, 7:46am

TLE set is now updated on both DB and Network. Thank you @EelkeVisser

K4KDR · April 5, 2022, 2:05am

Have there been any reports at all of either the 2m or 70cm digipeater being active on BDSat?

Thanks!

-Scott, K4KDR

PE0SAT · April 5, 2022, 8:32am

Good day Scott,

No I haven’t but up in this topic I see a remark that it should be active on “both frequencies”

marcelfr Digipeater is active on both frequencies

K4KDR · April 5, 2022, 2:16pm

Thank you!

I’ve tried both on multiple passes but no luck so far.

-Scott

EelkeVisser · April 6, 2022, 12:46pm

I noticed that the TLE of BDSat started to deviate. I received a few CW points in observation: SatNOGS Network - Observation 5730738

Using the artifacts viewer, that is under current development, I could extract some STRF points:

Fitting the previous TLE for MA and MM showed high residuals. Apparently the other parameters are not good anymore. As experiment I constructed a circular orbit that fitted nicely and gave a low residual. The inclination angle and the ascending node are slightly different. I did a few checks with ikhnos of other observations, and it looks like an improvement. Let’s try this new TLE for a while:

BDSat circular fit
1 99409U 22033H   22094.40040600  .00000000  00000-0  50000-4 0    04
2 99409  97.1888 176.8987 0001000   0.0000 234.9049 15.21746238000001
# 20220402.85-20220405.95, 89 measurements, 0.037 kHz rms

fredy · April 6, 2022, 1:05pm

TLE have been updated on both Network and DB. Thank you @EelkeVisser

Also we have some updated TLE by @PE0SAT for AlfaCrux.

ALFACRUX
1 99408U          22093.60969907  .00000000  00000-0  46655-2 0    03
2 99408  97.3912 176.4241 0008790 169.7998  42.3582 15.20359149    04

somecheese · April 6, 2022, 1:33pm

Hi guys, I have TLE update for BDSat

BDSat-Spacemanic
1 99409U 22033H   22093.49516635 +.00000000  00000-0  10000-4 0    04
2 99409  97.3875 176.3102 0011024 264.8703  51.9521 15.21421253000009

fredy · April 6, 2022, 4:58pm

31 TLE sets from spacetrack, still in TBA mode (to be assigned):

0 TBA - TO BE ASSIGNED
1 52157U 22033A   22096.54630064  .00001412  00000-0  22083-3 0  9993
2 52157  97.9486 179.7808 0012187 237.7630 122.2398 14.74261033   729
0 TBA - TO BE ASSIGNED
1 52158U 22033B   22096.54450514  .00001817  00000-0  27853-3 0  9993
2 52158  97.9496 179.7840 0011588 249.5963 110.4002 14.74808729   721
0 TBA - TO BE ASSIGNED
1 52159U 22033C   22096.54253174  .00000412  00000-0  68603-4 0  9996
2 52159  97.9512 179.7873 0009354 264.9451  95.0691 14.75089108   723
0 TBA - TO BE ASSIGNED
1 52160U 22033D   22096.53234950  .00010734  00000-0  49737-3 0  9992
2 52160  97.3895 179.2892 0008884 281.8025  78.2214 15.20229354   747
0 TBA - TO BE ASSIGNED
1 52161U 22033E   22096.53210818  .00006234  00000-0  28994-3 0  9992
2 52161  97.3882 179.2870 0008629 278.1529  81.8727 15.20281352   740
0 TBA - TO BE ASSIGNED
1 52162U 22033F   22096.53045280  .00005516  00000-0  25306-3 0  9998
2 52162  97.3873 179.2859 0009112 260.1133  99.9074 15.20802455   746
0 TBA - TO BE ASSIGNED
1 52163U 22033G   22096.53057184  .00003744  00000-0  17303-3 0  9994
2 52163  97.3875 179.2868 0009074 260.9749  99.0460 15.20754965   749
0 TBA - TO BE ASSIGNED
1 52164U 22033H   22096.46446463  .00015641  00000-0  70852-3 0  9996
2 52164  97.3825 179.2176 0008539 266.5502  93.4757 15.20919723   732
0 TBA - TO BE ASSIGNED
1 52165U 22033J   22096.53054619  .00010781  00000-0  49136-3 0  9994
2 52165  97.3877 179.2896 0009190 264.8888  95.1298 15.20794776   740
0 TBA - TO BE ASSIGNED
1 52166U 22033K   22096.53035813  .00016408  00000-0  74354-3 0  9992
2 52166  97.3846 179.2835 0010022 256.8735 103.1382 15.20884555   747
0 TBA - TO BE ASSIGNED
1 52167U 22033L   22096.53075388  .00011033  00000-0  50375-3 0  9990
2 52167  97.3872 179.2873 0008780 263.4659  96.5578 15.20729899   747
0 TBA - TO BE ASSIGNED
1 52168U 22033M   22096.53116803  .00007752  00000-0  35653-3 0  9994
2 52168  97.3859 179.2841 0008343 266.8875  93.1406 15.20587342   748
0 TBA - TO BE ASSIGNED
1 52169U 22033N   22096.52924402  .00008140  00000-0  36739-3 0  9994
2 52169  97.3876 179.2927 0010941 263.3221  96.6769 15.21198840   749
0 TBA - TO BE ASSIGNED
1 52170U 22033P   22096.52917483  .00005598  00000-0  25364-3 0  9993
2 52170  97.3872 179.2884 0010823 257.9002 102.1021 15.21206460   746
0 TBA - TO BE ASSIGNED
1 52171U 22033Q   22096.52883261  .00008270  00000-0  37172-3 0  9990
2 52171  97.3878 179.2913 0011315 257.8014 102.1954 15.21329284   740
0 TBA - TO BE ASSIGNED
1 52172U 22033R   22096.52850548  .00008628  00000-0  38653-3 0  9995
2 52172  97.3862 179.2883 0011145 252.7321 107.2696 15.21434260   746
0 TBA - TO BE ASSIGNED
1 52173U 22033S   22096.46223032  .00010858  00000-0  48281-3 0  9997
2 52173  97.3911 179.2336 0012456 255.5732 104.4122 15.21609665   733
0 TBA - TO BE ASSIGNED
1 52174U 22033T   22096.52749169  .00011436  00000-0  50596-3 0  9994
2 52174  97.3865 179.2904 0012320 249.5139 110.4775 15.21768608   742
0 TBA - TO BE ASSIGNED
1 52175U 22033U   22096.46166330  .00011561  00000-0  51098-3 0  9998
2 52175  97.3893 179.2313 0012787 252.0859 107.8983 15.21794711   737
0 TBA - TO BE ASSIGNED
1 52176U 22033V   22093.49206260  .02349791  00000-0  32232+0 0  9992
2 52176  97.9184 176.8384 0008622 278.3680  81.5426 14.74328277   281
0 TBA - TO BE ASSIGNED
1 52177U 22033W   22095.59609497 -.00002334  00000-0 -34534-3 0  9995
2 52177  97.9498 178.8481 0012081 242.5865 117.4127 14.74249290   590
0 TBA - TO BE ASSIGNED
1 52178U 22033X   22096.53111096  .00007563  00000-0  34772-3 0  9995
2 52178  97.3886 179.2902 0008952 269.3021  90.7189 15.20604451   724
0 TBA - TO BE ASSIGNED
1 52179U 22033Y   22096.39943747  .00322807  00000-0  14003-1 0  9990
2 52179  97.3806 179.1569 0009432 279.0195  81.0484 15.20832240   718
0 TBA - TO BE ASSIGNED
1 52180U 22033Z   22095.18886340  .00012328  00000-0  18663-2 0  9994
2 52180  97.9490 178.4548 0012640 233.1109 126.9106 14.74274467   534
0 TBA - TO BE ASSIGNED
1 52181U 22033AA  22096.46524560  .00081071  00000-0  36476-2 0  9993
2 52181  97.3837 179.2163 0007830 268.6435  91.4101 15.20735870   720
0 TBA - TO BE ASSIGNED
1 52182U 22033AB  22096.07044226  .00092329  00000-0  41553-2 0  9997
2 52182  97.3847 178.8366 0007762 267.2010  92.8212 15.20670899   660
0 TBA - TO BE ASSIGNED
1 52183U 22033AC  22095.67557877  .00015100  00000-0  68970-3 0  9999
2 52183  97.3843 178.4439 0008182 270.5644  89.4654 15.20647570   595
0 TBA - TO BE ASSIGNED
1 52184U 22033AD  22096.53082878  .00007622  00000-0  34952-3 0  9993
2 52184  97.3871 179.2863 0008674 263.5766  96.4482 15.20693878   746
0 TBA - TO BE ASSIGNED
1 52185U 22033AE  22094.91738048 -.00009334  00000-0 -14056-2 0  9997
2 52185  97.9490 178.1810 0012050 238.1960 121.8142 14.74238535   498
0 TBA - TO BE ASSIGNED
1 52186U 22033AF  22096.20694181  .00000449  00000-0  75457-4 0  9991
2 52186  97.9492 179.4494 0012251 232.6051 127.4057 14.74256545   685
0 TBA - TO BE ASSIGNED
1 52187U 22033AG  22096.27481370 -.00001343  00000-0 -19541-3 0  9990
2 52187  97.9442 179.5137 0012148 236.5843 123.4253 14.74251887   692

By @EelkeVisser and @PE0SAT analysis:

BDSat best fit for now is OBJECT U(52175)
AlphaCrux best fit for now is OBJECT D(52160)

EDIT: Both NORAD IDs have been assigned to be followed for these satellites. Will wait for the TLE assignment and some more separation before any final identification. We need also to make sure that these are all the objects that have been deployed and that we don’t expect any more, if anyone has this information please let us know.

somecheese · April 7, 2022, 8:28am

Hi guys,
could you please schedule some VHF beacon obs for BDSat? We would need some info about the VHF TRX from the beacon (received packets).

EU1SAT · April 13, 2022, 9:25pm

Temporary TLE for PlantSat

PLANTSAT
1 99407U 22033N   22102.51502921  .00007168  00000-0  32308-3 0  9992
2 99407  97.3879 185.1667 0011175 239.6553 118.2068 15.21285803  1659

Obtained by modifying #52169 TLE in order to meet data 2 days of observations.

EU1SAT · April 14, 2022, 6:59am

It would be necessary to put in the base of Suchai2 and Suchai3 satellites. Some information here:

fredy · April 14, 2022, 10:38am

I’ve just updated the TLE with this set. Thanks!

fredy · April 14, 2022, 10:39am

Feel free to create suggestions for these satellites in DB.

PE0SAT · April 14, 2022, 5:04pm

Done, both satellites added to the DB and needs moderation.

fredy · April 14, 2022, 6:41pm

The entries have been reviewed. For scheduling we will need transmitters and TLE sets.

PE0SAT · April 14, 2022, 6:54pm

Transmitters have been added

EU1SAT · April 14, 2022, 9:07pm

Temporary TLE for PlantSat
Adjusted on today’s data

PLANTSAT
1 99407U 22033N   22103.83054567  .00005539  00000-0  25032-3 0  9992
2 99407  97.3880 186.4576 0011267 234.5277 123.3938 15.21297599  1853

fredy · April 14, 2022, 10:12pm

Propagated and used in DB and Network. Thank @EU1SAT!

fredy · April 16, 2022, 6:49pm

BDSat is now identified as OBJECT U(52175), here are the results of ikhnos on observation 5797290.