Data checking..

[foxtrot_xray]

... Only in Texas:

 CS2453  HISTORY     - Date     Condition        Report By
 CS2453  HISTORY     - 1983     MONUMENTED       NGS
 CS2453  HISTORY     - 19950408 MARK NOT FOUND   USPSQD
 CS2453  HISTORY     - 20030430 GOOD             NGS
 CS2453  HISTORY     - 20030431 GOOD             NGS
 CS2453  HISTORY     - 20071114 GOOD             FRONT

.. Do we have 31 days in April.

[foxtrot_xray]

Add that this isn't the only one, and of the ones I DID find and checked online.. it's all by the same NGS agent.

 

I wonder if this is some kind of calling card, for years in the future, and am now wondering if I should do something similar. (I mean, it's been 15 years.. and noone's found it. )

[foxtrot_xray]

So, anyways..

I'm rebuilding my database for the Google Earth template.

 

This station was found while loading:

 AA4433 ***********************************************************************
 AA4433  DESIGNATION -  DALAP
 AA4433  PID         -  AA4433
 AA4433  STATE/COUNTY-  ML/PROVINCE OF REPUBLIC OF MARSHALL ISLANDS
 AA4433  COUNTRY     -  REPUBLIC OF MARSHAL ISLANDS
 AA4433  USGS QUAD   -  
 AA4433
 AA4433                         *CURRENT SURVEY CONTROL
 AA4433  ______________________________________________________________________
 AA4433* NAD 83(PA11) POSITION- 07 05 19.55893(N) 188 37 16.75461(W)   ADJUSTED  
 AA4433* NAD 83(PA11) ELLIP HT-    30.111 (meters)        (06/27/12)   ADJUSTED
 AA4433* NAD 83(PA11) EPOCH   -  2010.00
 AA4433* LMSL    ORTHO HEIGHT -     3.0   (meters)       10.    (feet) GPS OBS   
 AA4433  ______________________________________________________________________
 AA4433  LMSL orthometric height was determined with geoid model       OSU 91A
 AA4433  GEOID HEIGHT    -          26.51 (meters)                     OSU 91A
 AA4433  GEOID HEIGHT    -         28.828 (meters)                     EGM08
 AA4433  NAD 83(PA11) X  - -6,258,214.252 (meters)                     COMP
 AA4433  NAD 83(PA11) Y  -    948,848.105 (meters)                     COMP
 AA4433  NAD 83(PA11) Z  -    781,880.589 (meters)                     COMP

Nothing odd about this little baby. Except later in the import process, I get an odd Duplicate PID error, and in a different file, I find this:

AA4433 ***********************************************************************
 AA4433  DESIGNATION -  DALAP
 AA4433  PID         -  AA4433
 AA4433  STATE/COUNTY-  TQ/
 AA4433  COUNTRY     -  US
 AA4433  USGS QUAD   -  
 AA4433
 AA4433                         *CURRENT SURVEY CONTROL
 AA4433  ______________________________________________________________________
 AA4433* NAD 83(PA11) POSITION- 07 05 19.55893(N) 188 37 16.75461(W)   ADJUSTED  
 AA4433* NAD 83(PA11) ELLIP HT-    30.111 (meters)        (06/27/12)   ADJUSTED
 AA4433* NAD 83(PA11) EPOCH   -  2010.00
 AA4433* LMSL    ORTHO HEIGHT -     3.0    (meters)      10.    (feet) GPS OBS   
 AA4433  ______________________________________________________________________
 AA4433  LMSL orthometric height was determined with geoid model       OSU 91A
 AA4433  GEOID HEIGHT    -         26.51  (meters)                     OSU 91A
 AA4433  GEOID HEIGHT    -         28.83  (meters)                     EGM08
 AA4433  NAD 83(PA11) X  - -6,258,214.252 (meters)                     COMP
 AA4433  NAD 83(PA11) Y  -    948,848.105 (meters)                     COMP
 AA4433  NAD 83(PA11) Z  -    781,880.589 (meters)                     COMP
 

 

Same station, but different State, County, Country.

 

And, in case anyone is wondering, the Google Earth plugin -EXCEPT for the USGS overlays - will be back up no later than Monday!

[Bill93]

Well, they say everything is bigger in Texas, but I hadn't heard that it applied to months.

 

The Marshall Island location is what comes up when I look up the PID at NGS.  It appears that Geocaching didn't load the marks in the Pacific, as that one doesn't appear. 

 

I note that NGS must not trust their Pacific geoid model to be as good as most of the US, since the ortho elevation is rounded more than the numbers that go into it.  I think Ellipsoid Ht minus geoid equals orthometric height if it is GPS derived (or very close to it if the mark has a leveled height and it was a constraint on the fitting of the geoid).

 AA4433* NAD 83(PA11) ELLIP HT-    30.111 (meters)        (06/27/12)   ADJUSTED
AA4433* LMSL    ORTHO HEIGHT -     3.0   (meters)       10.    (feet) GPS OBS   
 AA4433  ______________________________________________________________________
 AA4433  LMSL orthometric height was determined with geoid model       OSU 91A
 AA4433  GEOID HEIGHT    -          26.51 (meters)                     OSU 91A
 

 

Edited September 2, 2018 by Bill93

[foxtrot_xray]

Yeah - I noticed that - and notices some sheets outside of the 'US' has a few other oddities (just as being set many, many years in the past, but the 'Monumented' date is recent,. like in the early 2010's..

 

In either case, the GE KMZ should now show stations. Updated as of August!

[foxtrot_xray]

Here's another fun one!!

 

God, I love this crap.

 

PID: DQ8778

This has two interesting notes. First, if you go to try and pull up that PID on the website (using 'By PID' option), you get:

INPUT ERROR - Invalid mark.
Contact NGS
Run Terminated.

This mark IS AVAILABLE in the montly archives, and what I believe is causing the error is this odd Vertical Accuracy:

DQ8778* NAVD 88 ORTHO HEIGHT -    84.75  (meters)      278.1   (feet) h-N COMP

"h-N COMP"? I haven't seen that one before. Whohoo.

[Bill93]

https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=DQ8778

This works for me.

The h-N computation means that the orthometric height (what people usually think of as ~elevation above sea level) was computed by GPS and a geoid model, and no level run was made to the mark.  Since this is in remote northern Alaska, I can see why.

[foxtrot_xray]

Yes, the direct link works. Not the PID search.