[IGSSTATION-7564] Re: CUUT: BeiDou tracking disabled
Octavian Andrei
octavian.a.chula at gmail.com
Mon Feb 18 12:16:37 PST 2019
This is the list with tracking satellites and observation type for BeiDou constellation from 2019-044 when the receiver experience 13 resets:
STP CUUT C TYP C2I C7I L2I L7I S2I S7I
STO CUUT C C01 2646 2646 2646 2646 2646 2646
STO CUUT C C02 2646 2646 2646 2646 2646 2646
STO CUUT C C03 2648 2648 2648 2648 2648 2648
STO CUUT C C04 1624 1624 1622 1621 1624 1624
STO CUUT C C05 2645 2645 2645 2645 2645 2645
STO CUUT C C06 2560 2560 2560 2558 2560 2560
STO CUUT C C07 2151 2151 2150 2147 2151 2151
STO CUUT C C08 2318 2318 2316 2313 2318 2318
STO CUUT C C09 2339 2338 2335 2334 2339 2338
STO CUUT C C10 2333 2332 2330 2328 2333 2332
STO CUUT C C11 327 327 327 327 327 327
STO CUUT C C12 532 532 531 531 532 532
STO CUUT C C13 2368 2368 2367 2363 2368 2368
STO CUUT C C14 442 442 442 442 442 442
STO CUUT C C16 2370 2369 2369 2366 2370 2369
STO CUUT C C18 2306 0 2305 0 2306 0
STO CUUT C C19 535 0 535 0 535 0
STO CUUT C C20 830 0 828 0 830 0
STO CUUT C C21 647 0 647 0 647 0
STO CUUT C C22 619 0 618 0 619 0
STO CUUT C C23 727 0 725 0 727 0
STO CUUT C C24 233 0 233 0 233 0
STO CUUT C C25 592 0 592 0 592 0
STO CUUT C C26 518 0 517 0 518 0
STO CUUT C C27 566 0 566 0 566 0
STO CUUT C C28 704 0 704 0 704 0
STO CUUT C C29 806 0 805 0 806 0
STO CUUT C C30 658 0 656 0 658 0
Indeed, BDS-3 satellites were visible and observations were logged only for a single frequency though. CUUT receiver has only two BDS frequencies. The same applies for the days since the firmware update was conducted. This means that BeiDou-3 tracking works. However, there are times that there is something in the receiver (?) or firmware (?) that triggers a receiver reset when logging data related to one/more of BDS satellites. Since in our case the resets affect the data logging for all the other constellations and the real-time streaming, we decided to disable the BeiDou tracking for now. At least, the resets were eliminated from the last days of observation and our assumption is supported for now.
On the other hand, I am not sure how to read the ‘performance’ from the passed link. Would the +(plus sign) mean obs data on at least two frequencies?
But then, none of the NetR9 listed there has a plus sign for PRN larger than C18 (inclusive). Does it mean something?
kind regards,
Octavian
PS: I am also aware that Javad receivers experienced similar reset issues that were removed with a patch update to the firmware sometimes towards the end of January.
> On 18 Feb 2019, at 20.48, Richard Langley <lang at UNB.CA> wrote:
>
> Author: Richard Langley
>
> I don't think we have had any anomalies with the UNB3 Trimble NetR9 tracking BeiDou satellites using firmware v.5.37 with all satellites up to PRN C32 enabled. You could check the performance of other NetR9s here:
> http://ftp.aiub.unibe.ch/igsdata/odata3_beidou_day.txt
>
> -- Richard Langley
>
> -----------------------------------------------------------------------------
> | Richard B. Langley E-mail: lang at unb.ca |
> | Geodetic Research Laboratory Web: http://gge.unb.ca/ |
> | Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 |
> | University of New Brunswick Fax: +1 506 453-4943 |
> | Fredericton, N.B., Canada E3B 5A3 |
> | Fredericton? Where's that? See: http://www.fredericton.ca/ |
> -----------------------------------------------------------------------------
>
>
>
>> On Feb 18, 2019, at 2:37 PM, Octavian Andrei <octavian.a.chula at gmail.com> wrote:
>>
>> Dear all,
>>
>> We have noticed multiple receiver resets since upgrading CUUT’s Trimble NetR9 receiver firmware to v5.37. Practically, from 15 days of observations after the update only two days were complete. All the other days have experienced multiple receiver resets.
>>
>> We believe that the issue is somehow related to BeiDou tracking (perhaps connected to tracking the BDS-3 satellites). Over the last weekend, the BeiDou tracking was disabled and the receiver experienced no resets.
>>
>> Has anyone noticed similar behaviour? We have been thinking to re-enable tracking the satellites only up to PRN C15.
>>
>> To sum up, BeiDou tracking at CUUT remains disabled until further notice.
>>
>> Kind regards,
>> Octavian Andrei
>> _______________________________________________
>> IGSSTATION mailing list
>> IGSSTATION at lists.igs.org
>> https://lists.igs.org/mailman/listinfo/igsstation
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.igs.org/pipermail/igsstation/attachments/20190218/27596951/attachment-0001.html>
More information about the IGSSTATION
mailing list