[Isocops] CAR : Mon 6/14 1pm EDT : Lo Special Ops SCCB

[Harald Kucharek]

Hi Chelle,

I don't know if you have an STF for the Lo-Background-test. If not here it
is. Please check if it is correct.

Best regards,
Harald


On 6/11/10 2:23 PM, "Nathan Schwadron" <nschwadron at me.com> wrote:

> Hi Chelle
> 
> We (the Lo team and I) have had a good discussion and we have reached closure.
> Stephen requested that we keep things as simple as possible and try to
> maximize our statistics. Therefore, for the moon test, we will run table 3 and
> use a start and stop bin of 1. Attached is the STF and the CAR. The STF is
> really a snippet of what will be incorporated into the orbit 83  complete STF.
> 
> Cheers
> 
> Nathan
> 
> 
> 
> 
> 
> On Jun 11, 2010, at 10:44 AM, Nathan Schwadron wrote:
> 
>> Thanks Greg!!
>> 
>> Revised CAR attached.
>> 
>> All, we will have to be mindful about the fact that we have normal mode
>> voltage in bin 0. If despinning is required, we may have a little streak
>> running through the high-res data. This will look very similar to the esa
>> step 0 issue we have noticed.
>> 
>> <CAR-LoMoonTestPrep-100701_nas_v2.doc>
>> 
>> Nathan
>> 
>> On Jun 11, 2010, at 9:23 AM, Dunn, Greg wrote:
>> 
>>> Setting a start or stop bin of 0 won't work, since a different task
>>> handles setting the voltages on spin boundaries.  To get 360 degree O
>>> mode, use 1/1 for the start/stop bins.  On spin boundaries, bin 0 will
>>> be set to the normal mode voltage, but all other bins will use the O
>>> mode setting.
>>> 
>>> -- Greg 
>>> 
>>>> -----Original Message-----
>>>> From: Nathan Schwadron [mailto:nschwadron at mac.com]
>>>> Sent: Thursday, June 10, 2010 8:38 PM
>>>> To: Reno, Michelle
>>>> Cc: Harald Kucharek; Stephen Fuselier; David Heirtzler; Peter
>>>> Wurz; Herb Funsten; Mark Tapley; Dan Reisenfeld; McComas,
>>>> Dave; Eberhard Moebius; Dunn, Greg; Michelle Reno; isoc cops
>>>> Subject: Re: [Isocops] CAR : Mon 6/14 1pm EDT : Lo Special Ops SCCB
>>>> 
>>>> Hi All
>>>> 
>>>> I spoke to Stephen today and recommended that we run the
>>>> O-mode with a start bin of 0 and a stop bin of 59. The
>>>> rationale is as follows. If we have a start tracker outage
>>>> during O-mode and view only part of the great circle (start
>>>> bin > 0 and stop bin <59) then we would end up not being able
>>>> to reconstruct the data. So we are still at risk if a star
>>>> tracker outage occurs. On the other hand if we view the whole
>>>> great circle (start bin = 0 and stop bin = 59) then we would
>>>> *not* compromise the data in case of a star tracker outage.
>>>> 
>>>> The downside of using a start bin =0 and a stop bin = 59 is
>>>> that we will exclude some of the  normal viewing during an
>>>> orbit. However, I do not see this as a big downside. If we
>>>> want to have some normal viewing, then we could switch
>>>> between the O-mode table 3 and ! a normal can choose. In this
>>>> case, because we view full great circles (start bin = 0 and
>>>> stop bin =59), both the normal viewing and the O-mode viewing
>>>> would be insensitive to a star tracker outage. I view this as
>>>> being a far more robust solution and I think it will be far
>>>> more successful in the long run.
>>>> 
>>>> Let me be clear that I am happy to perform the test with
>>>> either the original CAR from Chelle or the slight revision attached.
>>>> 
>>>> Nathan
>>>> 
>>>> 
>>> 
>>> 
>>> 
>>> Please restrict discussions on this email list to non-ITAR sensitive topics.
>>> ______________________________________________
>>> Isocops mailing list
>>> Isocops at lists.sr.unh.edu
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>> 
> 

----------------------------
Harald Kucharek
University of New Hampshire
Space Science Center
Morse Hall
39 College Road
Durham, NH 0324
USA

Phone: +1 603 862 2948
FAX  : +1 603 862 0311
----------------------------


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