Tag Archives: TLE

Atlas V ULTRASat Objects identified

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Ultrasat LauncherAtlas V ULTRASat Objects identified

By using detailed Doppler shift measurements, PA0DLO informs that LightSail is object 90726, ULTRASat 7, without any doubt.

This means that LightSail is actually object 40658, 2015-025H in the JSpOC catalog.

The preliminary initial assignments in the JSpOC catalog for the objects in this launch will need to be corrected:

PSAT = 90720 = ULTRASat 1 = 40652 = 2015-025B
LightSail = 90726 = ULTRASat 7 = 40658 = 2015-025H
BRICSat = 90729 = ULTRASat 10 = 40661 = 2015-025L

Source: PA0DLO, Amsat-BB

The latest 4M TLE

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The latest 4M TLE data shared via the Moon-Net mailing list by LX2RG

4M
1 40284U 14065B   14307.75000000 -.00000015  00000-0 -36726+7 0 00002
2 40284 061.6967 069.0661 6145515 000.5872 038.5007 00.07379169000029

4M-spacecraftPlease find attached the latest TLE for 4M.

It is obtained using an accurate Doppler fit and should do for some months. 4M may awaken from time to time and there is the possibility that it gets enough sun to stay powered for a long time due to Earth’s orbit and inertial properties of the attitude of the last stage.

Posted in 4M | Tagged

Preliminary TLE VEGA launch

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Preliminary TLE (Orbital Elements) for the upcoming VEGA launch

Cubesats Frequentie Spectrum Vega Launch

TLE-new 19-02-2012 12:00 UTC

ALMASAT-1               
1 38078U 12006B   12049.33443324  .00018909  00000-0  55604-3 0   123
2 38078  69.4856 227.8040 0775179  38.1714 327.1743 14.04552460   692
2012-006C               
1 38079U 12006C   12049.75727519  .00032984  00000-0  85788-3 0   159
2 38079  69.4840 226.8298 0780720  37.6598 327.6743 14.05826935   745
2012-006D               
1 38080U 12006D   12049.68686761  .00031213  00000-0  83232-3 0   196
2 38080  69.4860 226.9842 0779364  37.6440 327.6296 14.05613316   732
2012-006E               
1 38081U 12006E   12049.82923639  .00025595  00000-0  68592-3 0   177
2 38081  69.4839 226.6652 0779116  37.5252 327.7259 14.05593472   752
2012-006F               
1 38082U 12006F   12049.75837023  .00023781  00000-0  63742-3 0   167
2 38082  69.4805 226.8323 0779435  37.5115 327.7743 14.05534126   743
2012-006G               
1 38083U 12006G   12049.68698015  .00036831  00000-0  99391-3 0   165
2 38083  69.4810 226.9839 0778140  37.8349 327.4348 14.05605984   735
2012-006H               
1 38084U 12006H   12049.68735371  .00027952  00000-0  76090-3 0   135
2 38084  69.4877 226.9866 0778137  37.7314 327.5265 14.05465744   733
2012-006J               
1 38085U 12006J   12049.68741246  .00029832  00000-0  81206-3 0   105
2 38085  69.4808 226.9854 0778135  37.7482 327.5230 14.05456796   738

Preliminary TLE

XATCOBEO
1 00002U 12006B   12044.46627998  .00000000  00000-0  31967-3 0    16
2 00002  69.4857 238.7662 0796847  45.0971 191.9357 14.06476807    13
ESTAR
1 00003U 12006C   12044.46627998  .00000000  00000-0  28115-3 0    18
2 00003  69.4857 238.7662 0796159  45.0883 191.9444 14.06339990    10
GOLIAT
1 00004U 12006D   12044.46627998  .00000000  00000-0  26912-3 0    12
2 00004  69.4857 238.7662 0795841  45.0842 191.9484 14.06276813    11
ROBUSTA
1 00005U 12006E   12044.46627998  .00000000  00000-0  31201-3 0    10
2 00005  69.4856 238.7662 0796758  45.0912 191.9422 14.06456720    16
MASAT
1 00006U 12006F   12044.46627998  .00000000  00000-0  28115-3 0    11
2 00006  69.4856 238.7662 0796254  45.0851 191.9481 14.06356736    11
PW-SAT
1 00007U 12006G   12044.46627998  .00000000  00000-0  26588-3 0    14
2 00007  69.4856 238.7662 0796068  45.0829 191.9503 14.06319864    16
UNICUBESAT
1 00008U 12006H   12044.46627998  .00000000  00000-0  31967-3 0    12
2 00008  69.4856 238.7662 0796936  45.0885 191.9454 14.06489697    10
ALMASat-1
1 00009U 12006I   12044.46627998  .00000000  00000-0  12728-3 0    17
2 00009  69.4857 238.7662 0792733  45.0462 191.9858 14.05660435    12

Catch the Last ARISSat-1 Telemetry

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ARISSat-1Now that the submissions are complete for the Chicken Little Contest, AMSAT is announcing a new contest: Catch the Last ARISSat-1 Telemetry. With luck, we will have real time data to go along with the final reentry. While telemetry sent by e-mail is valuable and requested, the contest will be judged solely on data sent through the official ARISSatTLM programs directly to the Internet telemetry server.

How do I enter? Simple. Just submit ARISSat-1 telemetry over the Internet using either ARISSatTLM telemetry program. You can use the PC version or the MAC version of ARISSatTLM. You are automatically eligible.

Are there separate categories for entrants? No.

How is the winner determined? The call, or name, in the last block of data received by telemetry server wins.

How will the winner be announced? Via the usual AMSAT News Service, and on the Chicken Little Contest site.

If ARISSat-1 fails sometime before reentry, does it count? Yes! Engineering data is essential input for future projects!

What do I get if I win? A certificate in PDF format suitable for framing, and the gratitude of the ARISSat-1 team.

In short, just keeps those telemetry blocks flowing!

Remember: you can see the latest ARISSat-1 telemetry at ARISSat-1 realtime telemetry

Mark L. Hammond  [N8MH]

RAX-2 is OBJECT E

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A good explanation from DK3WN on how to determine what TLE data belongs to what Satellite.

Based on the latest cubesat TLEs we have now three groups of objects (B+C+D, E, F+G). The first group are the 1U cubesats – they are only a few km apart. In 13 sec distance is RAX-2. I think F and G are the DICE sats.

Elena-III All TLE 02-11-2011

A simple way to determine the TLE, Take one beacon frequency – in this case 437.435 MHz (belongs to RAX-2). Then I calculated all the doppler frequencies for all objectes on a high 66 deg elevation pass. If the doppler = 0 then we have TCA. In this way you can calculate the distance between the TCA of each satellite.

Elena-III All TLE Doppler correction

You can see the 13 sec difference of RAX to to the first group (E1P, MCubed and AubieSat-1)

RAX-2 Zero 02112010 11:13UTC Pass

Take a look at the spectrogram – the horizontal yellow line is the center frequency of 437.345 MHz and the vertical one is the calculated time for RAX-2. And as chance would have it – we have a packet there. If you take the middle frequency of this 9k6 packet -> it all comes to one point.

Source: Satblog – DK3WN

Elana-III Cubesat TLE Lottery

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TLE LotteryThe search for the right TLE information has begun. After a launch, it’s always figuring out which objects in celestrak.com/NORAD/elements/tle-new.txt correspond to which satellite.

The first initial reports are available. Keep in mind when using these data, they will quickly change until the object information is linked to the correct satellite.

We suspect OBJECT B to be ?
We suspect OBJECT C to be ?
We suspect OBJECT D to be ?

We suspect OBJECT E to be RAX-2

We suspect OBJECT F to be DICE
We suspect OBJECT G to be E1P

Space Track 02-11-2011 17:29 UTC

OBJECT B
1 37850U 11061B   11305.51394459 +.00000487 +00000-0 +51357-4 0 00087
2 37850 101.7040 237.2054 0255998 281.2563 075.9820 14.77492974000595
OBJECT C
1 37851U 11061C   11306.52970872  .00006612  00000-0  54567-3 0    79
2 37851 101.7029 238.6826 0255867 278.7162 078.5097 14.77513975   743
OBJECT D
1 37852U 11061D   11306.52971894  .00011164  00000-0  91731-3 0    66
2 37852 101.6977 238.6724 0254624 278.8801 078.3646 14.77522609   745
OBJECT E
1 37853U 11061E   11305.92013487  .00009089  00000-0  74764-3 0    65
2 37853 101.6959 237.7989 0254900 280.7163 076.5435 14.77552774   651
OBJECT F
1 37854U 11061F   11306.52898599  .00014110  00000-0  11481-2 0    87
2 37854 101.6996 238.6806 0254637 278.7716 078.4718 14.77753179   735
OBJECT G
1 37855U 11061G   11305.51340081 -.00000195  00000-0 -36404-5 0    67
2 37855 101.6989 237.2087 0256557 281.4195 075.8285 14.77694693   587