[Isocops] [Ibexops] Orbit 598 Contact Statuses

NIgel Angold nangold at princeton.edu
Thu Feb 23 20:44:52 EST 2023


Thanks Kayton.

So the tracking data post-anomaly looks good too. That's excellent news. 
I'm pretty sure that means the downlink is coherent. Let me know if you 
or others at L3Harris disagree.

Also, Tim took a successful test pass with AK today to validate the 
fixes that SSC made. So he scheduled two contacts for tomorrow (Friday) 
morning and hopefully we can get good tracking data from them too.We've 
shifted the HI01 apogee contact on Monday 27 Feb later because it 
conflicted with the time slot earmarked for the follow-up ARB (10:00 am 
eastern). Again, we hope it will provide more good tracking data.

Before the next perigee and potential Master Reset due to the 18 day 
command loss timer on 4 March, if we decide to perform a Firecode Reset 
that could result in no downlink for a while, would ~30 minutes of 
tracking data before the reset be helpful in providing an orbit 
determination that's as up to date as possible before losing visibility?

Nigel
> kayton.lane at L3Harris.com <mailto:kayton.lane at L3Harris.com>
> February 23, 2023 at 16:45
>
> Hello everyone,
>
> Below are the statuses for the o598 primary contacts.
> DOY 049 15:00 UTC contact w/ USHI-02 (apogee): Pass for Doppler
>
> DOY 049 18:00 UTC contact w/ USHI-02 (Recovery Contact): Pass for Doppler
>
> DOY 050 20:20 UTC contact w/ USHI-01 (Recovery Contact): Pass for Doppler
>
> DOY 052 19:00 UTC contact w/ USHI-02 (Recovery Contact): Pass for Doppler
>
> DOY 052 21:25 UTC contact w/ AUWA-01 (Recovery Contact): Pass for Doppler
> DOY 054 02:00 UTC contact w/ USHI-01 (P/D): Pass for Doppler
> DOY 054 11:00 UTC contact w/  USHI-02 (P/A): Pass for Doppler
>
> Thanks,
> Kayton Lane
> IBEX FDG
>
>
>
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