[Geomag-daily] [EXTERNAL] RE: [Ext] Re: Daily bad Total Field Values at Deadhorse Observatory

[Sauter, Edward]

What are the odds of you SLB people randomly looking at the 30 minute
window, after 1300 UT, in an attempt to catch it as it is happening.  Then
make a 'mad dash' (obeying the posted speed limits of course), to see if
you can see what is going on in the vicinity of the observatory.

It was at it again today from around 1956 through 2027 UT.

On Wed, Sep 26, 2018 at 4:42 PM Adam Aucoin <AAucoin at slb.com> wrote:

> Good evening,
>
>
>
> I spoke with the T-Pad operator about the disruptions and the times. She
> told me there has been no activity going on at T-Pad.
>
>
>
> Kindly instruct what should be our next step.
>
>
>
> Thanks,
>
>
>
>
>
> Schlumberger-Private
>
> *From:* Karen Remick <kjoutflow2004 at yahoo.com>
> *Sent:* Wednesday, September 26, 2018 12:44 PM
> *To:* Adam Aucoin <AAucoin at slb.com>; Bonnie Baker <BBaker14 at slb.com>;
> Brian Olson <bolson at slb.com>; Kory Simpson <KSimpson at slb.com>; Lisa
> Tschosik <LTschosik at slb.com>; Ryan Kauffman <RKauffman at slb.com>; Sauter,
> Edward <esauter at usgs.gov>; Brandon Horton <BHorton4 at slb.com>
> *Cc:* GS-HAZ Geomagnetism Federal Employees <
> geomag-daily at geohazards.usgs.gov>
> *Subject:* [Ext] Re: Daily bad Total Field Values at Deadhorse Observatory
>
>
>
> Ed,
>
> Maybe we can get some logs from the T-pad operator as to when people were
> on the pad. Finding out who was there gives us a chance to find out what
> exactly they were doing. If no-one was on the pad, that tells us something
> too.
>
> Karen
>
>
>
> On Wednesday, September 26, 2018, 7:18:29 AM AKDT, Sauter, Edward <
> esauter at usgs.gov> wrote:
>
>
>
>
>
> All,
>
> On a daily basis, starting at at random hours, there are a lot of missing
> 1 second F values.  Carol Finn first noticed the problem.  Not so many as
> to corrupt our 1 minute values, but a fair number.  They seem to be
> concentrated over a 1 -3 hour period, and in the later half of the UT day
> (after 1300 during the last week or so).
>
>
>
> Whatever is causing this problem, it took September 21 off.  During this
> day, there was on 1 bad 1 second F value.
>
>
>
> In order to see what I describing, you must view a time span of no more
> than 30 minutes on the Geomag Plots page:
>
> https://geomag.usgs.gov/plots/
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__geomag.usgs.gov_plots_&d=DwMFaQ&c=CRKael6LgVt5xjvyqPD27dPR2eKsAMw5_UGvkEk3eUY&r=sSHo8vlCBgwVcdtmYQ1J_g&m=r4q8Z46u0-EISLA3pfucOcb1F7JQ7NyaauNmKrCiShc&s=kNnSwj5fsD3ZPFeMxoqEKIMeKnnrTrHy_nnukPf9Ql8&e=>
>
>
>
> On the left side of the page, you can select an individual observatory
> (DED, for your observatory)
>
>
>
> Also, on the left side of the page, there are 2 blocks that signify the
> start and end time for the horizontal scale.  For example, enter a start
> time of 2018-09-23 20:00:00, and an end time of 2018-09-23 20:30:00.
> (within the time blocks you can edit the entry already there)
>
>
>
> After selecting this time span, you can use the Step Forward and Step Back
> 'buttons' to shift the time span accordingly.
>
>
>
> Because of the way this happens for a period of time, and on almost a
> daily basis, I am of the opinion this is an artificial disturbance, and can
> be remedied.  One of the more probable causes would be welding in the
> vicinity, but it could be something else.
>
> Please investigate at your first opportunity and by all means avoid taking
> absolute observations during periods where the Total Field values are being
> corrupted.
>
>
>
> Some statistics:
>
> Date
>
> Starting at:
>
> Bad 1 Second F Values
>
> 9/19
>
> 1300
>
> 170+
>
> 9/20
>
> 1300 UT
>
> 220
>
> 9/21
>
> 0100
>
> 1
>
> 9/22
>
> 2200
>
> 165
>
> 9/23
>
> 2000
>
> 500+
>
> 9/24
>
> 2200
>
> 168
>
> 9/25
>
> 2000
>
> 280+
>
>
>
>
>
> Regards,
>
> Ed Sauter
>
>
>
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