Current best estimate of TLEs
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
de KM1P Joe
FYI, if the TLE doesn't load, TLE Doctor may help:
http://oscar.ok2gz.eu/fox1d.php
73, John Brier KG4AKV
On Sun, Jan 17, 2021, 23:29 Joseph B. Fitzgerald [email protected] wrote:
Current best estimate of TLEs
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
de KM1P Joe
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Thanks John,
Our Ground Software was struggling to parse the TLE due to a checksum error. We'll try this out.
Sincerely, Rizwan Merchant KF5BNL
On Mon, Jan 18, 2021 at 6:50 AM John Brier [email protected] wrote:
FYI, if the TLE doesn't load, TLE Doctor may help:
http://oscar.ok2gz.eu/fox1d.php
73, John Brier KG4AKV
On Sun, Jan 17, 2021, 23:29 Joseph B. Fitzgerald [email protected] wrote:
Current best estimate of TLEs
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
de KM1P Joe
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These should have the correct check sum.
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
Let me know if they work for you. Also, make certain that both data lines are the same length when you put them into the file for your tracking program. Sometimes due to the font and standards conversion, extra spaces get added.
73,
Alan WA4SCA
<-----Original Message----- <From: John Brier [mailto:[email protected]] <Sent: Monday, January 18, 2021 06:49 <To: Joseph B. Fitzgerald [email protected] <Cc: AMSAT BB [email protected] <Subject: [AMSAT-BB] Re: RadFxSat-2 TLE < <FYI, if the TLE doesn't load, TLE Doctor may help: < <http://oscar.ok2gz.eu/fox1d.php < < <73, John Brier KG4AKV < <On Sun, Jan 17, 2021, 23:29 Joseph B. Fitzgerald <[email protected] <mailto:[email protected] > wrote: < < < Current best estimate of TLEs < < RadFxSat-2 < 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 < 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05 < < de KM1P Joe < < ----------------------------------------------------------- < < Sent via AMSAT-BB(a)amsat.org http://amsat.org . AMSAT-NA makes this open <forum available < to all interested persons worldwide without requiring membership. Opinions <expressed < are solely those of the author, and do not reflect the official views of AMSAT-NA. < Not an AMSAT-NA member? Join now to support the amateur satellite program! < < View archives of this mailing list at < https://mailman.amsat.org/hyperkitty/list/[email protected] < To unsubscribe send an email to amsat-bb-leave(a)amsat.org http://amsat.org < Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org <
Alan: Am I correct that the keps for RadFxSat-2 in the latest nasabare.txt file from AMSAT (downloaded approx 1500UTC) is the same data? (Appears to be). SatPC32 had no issues loading this information.
Looking forward to the next US East Coast pass in just under an hour.
Thanks! Steve KS1G
On Mon, Jan 18, 2021 at 9:58 AM Alan [email protected] wrote:
These should have the correct check sum.
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
Let me know if they work for you. Also, make certain that both data lines are the same length when you put them into the file for your tracking program. Sometimes due to the font and standards conversion, extra spaces get added.
73,
Alan WA4SCA
Hi Alan,
It is lookin better with your corrected TLE.
Our ground software uses a combination of pyorbital and ephem libraries in python. All of the ephem software works with the new TLE, but we're having an odd issue with the TLE with pyorbital.
I'm not sure if you're familiar with python or the library, but the error is below:
self.orbit = int(self._line2[63:68]) ValueError: invalid literal for int() with base 10: '4 0'
But it seems to be having issues with the second line at the last segment, highlighted below:
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
Every other TLE we've tried seems to work just fine, even for other satellites and ISS. So any advice or help is greatly appreciated.
Sincerely, Rizwan Merchant KF5BNL
On Mon, Jan 18, 2021 at 8:58 AM Alan [email protected] wrote:
These should have the correct check sum.
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
Let me know if they work for you. Also, make certain that both data lines are the same length when you put them into the file for your tracking program. Sometimes due to the font and standards conversion, extra spaces get added.
73,
Alan WA4SCA
<-----Original Message----- <From: John Brier [mailto:[email protected]] <Sent: Monday, January 18, 2021 06:49 <To: Joseph B. Fitzgerald [email protected] <Cc: AMSAT BB [email protected] <Subject: [AMSAT-BB] Re: RadFxSat-2 TLE < <FYI, if the TLE doesn't load, TLE Doctor may help: < <http://oscar.ok2gz.eu/fox1d.php < < <73, John Brier KG4AKV < <On Sun, Jan 17, 2021, 23:29 Joseph B. Fitzgerald < [email protected] <mailto:[email protected] > wrote: < < < Current best estimate of TLEs < < RadFxSat-2 < 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 < 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05 < < de KM1P Joe < < ----------------------------------------------------------- < < Sent via AMSAT-BB(a)amsat.org http://amsat.org . AMSAT-NA makes this open <forum available < to all interested persons worldwide without requiring membership. Opinions <expressed < are solely those of the author, and do not reflect the official views of AMSAT-NA. < Not an AMSAT-NA member? Join now to support the amateur satellite program! < < View archives of this mailing list at < https://mailman.amsat.org/hyperkitty/list/[email protected] < To unsubscribe send an email to amsat-bb-leave(a)amsat.org < http://amsat.org%3E < Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org <
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program!
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On 1/18/21 9:10 AM, Rizwan Merchant wrote:
self.orbit = int(self._line2[63:68]) ValueError: invalid literal for int() with base 10: '4 0'
While Python is not a language I use often, I might be able to answer this:
Are you sure that column 63 should be included in that text-to-integer conversion? I forget where I saw the TLE format specification, but I'd check that first.
In addition, when you cut/paste from email, make sure spaces aren't being missed somehow.
--- Zach N0ZGO
The line of code above the error originates from the python library, so I'm hoping the answer is yes.
I've tried multiple different copy / pastes and had the same issue thus far.
Sincerely, Rizwan Merchant KF5BNL
On Mon, Jan 18, 2021 at 9:17 AM Zach Metzinger [email protected] wrote:
On 1/18/21 9:10 AM, Rizwan Merchant wrote:
self.orbit = int(self._line2[63:68]) ValueError: invalid literal for int() with base 10: '4 0'
While Python is not a language I use often, I might be able to answer this:
Are you sure that column 63 should be included in that text-to-integer conversion? I forget where I saw the TLE format specification, but I'd check that first.
In addition, when you cut/paste from email, make sure spaces aren't being missed somehow.
--- Zach N0ZGO
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program!
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On 1/18/21 9:19 AM, Rizwan Merchant wrote:
The line of code above the error originates from the python library, so I'm hoping the answer is yes.
I've tried multiple different copy / pastes and had the same issue thus far.
Rizwan,
Make sure, using a text editor, that the pasted lines are proper. I downloaded nasabare.txt and checked the RadFxSat-2 lines:
(My cursor is indicated by the carat, which is really a space in the file.)
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014^ 05
-=--:----F1 nasabare.txt Top (3,63) (Text)
This looks correct, according to the TLM format given at https://www.celestrak.com/NORAD/documentation/tle-fmt.php
--- Zach N0ZGO
On 1/18/21 8:56 AM, Alan wrote:
These should have the correct check sum.
Ah ha!
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
There is an extra space between 60.6849 and 134.0000 on line 2.
Delete this space and all should be good. Fixed-column punched cards strike again!
--- Zach N0ZGO
I am sure most you all are already aware of this. But for those listening to this discussion, the exact format required for the TLE is included in the header of every weekly TLE distribution. I have sent this in basic text format to avoid extra spaces.
DECODE 2-LINE ELSETS WITH THE FOLLOWING KEY: 1 AAAAAU 00 0 0 BBBBB.BBBBBBBB .CCCCCCCC 00000-0 00000-0 0 DDDZ 2 AAAAA EEE.EEEE FFF.FFFF GGGGGGG HHH.HHHH III.IIII JJ.JJJJJJJJKKKKKZ KEY: A-CATALOGNUM B-EPOCHTIME C-DECAY D-ELSETNUM E-INCLINATION F-RAAN G-ECCENTRICITY H-ARGPERIGEE I-MNANOM J-MNMOTION K-ORBITNUM Z-CHECKSUM
This is a handy sanity check for all TLE sets.
Ray Hoad WA5QGD AMSAT-NA Orbital Elements Manager
On 1/18/21 8:56 AM, Alan wrote:
These should have the correct check sum.
Ah ha!
RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05
There is an extra space between 60.6849 and 134.0000 on line 2.
Delete this space and all should be good. Fixed-column punched cards strike again!
--- Zach N0ZGO
-----------------------------------------------------------
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participants (7)
-
Alan -
John Brier -
Joseph B. Fitzgerald -
ray.hoad＠mypbmail.com -
Rizwan Merchant -
Stephan Greene -
Zach Metzinger