QUADRANGLE UNNAMED
SS 13-15/11
74º 00'- 75º 00' S, 94º 30'- 99º 00'W
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Satellite Imagery
FULL Scene
(185 km x 185 km)
Landsat 5: LT5232113009105110
Path 232 Row 113 - 20 February 1991
Quad map outlined in red. Up in image is roughly 20 degrees True.
Sun elev: 15º / Sun azimuth: 75º
Click on image to view larger version
B&W: 338K jpeg (12 pixels/inch)
TMA Flight line Map and Control Point Locations
Flight line Information - flight lines indicated by dark lines, direction
of flight indicated by arrowheads at end of each flight line, TMA # (photo
flight #) indicated by number on flight line, and values in parenthesis
on the flight lines indicate starting amd ending frame #'s.
Control Photos - number at small arrow on flight line indicates frame
#, arrow indicates direction of view (R or L indicates right or left view,
frame # and V in parenthesis indicates vertical view), click on frame #
to display browse photo, thumbnail versions of control photos appear below.
Control Points - control point location indicated by red square with
station name adjacent, click on red square to go to individual control folder.
Aerial Photography
(click on photos to view larger version; average size 161K
jpeg)
Quadrangle Control Network (Click on quadrangle
control diagram to see full control network)
THURSTON ISLAND - JONES MOUNTAIN CONTROL
1968-69 Season
Engineers: Klaus Anderson, Frederick Brownsworth, Jr.,
Karl Eissinger, Charles Morrison, and Ronald Todd
Terrestrial survey network employing Wild T-2 theodolite
for angular measurements and Electro-tapes for distance measurements.
DKM-3A used for astro measurements.
CONTROL POINTS COORDINATES
Control point information - click on point to go to individual
folder
NAME
|
TYPE*
|
ALTERNATE
NAME/S
|
LATITUDE
DMS (S)
|
LONGITUDE
DMS (W)
|
ELEVATION
(METERS)
|
AGENCY
|
RELATIVE STRENGTH OF POSITION+
|
INMAN NUNATAK |
I |
2621 |
74 49 13.5 |
98 53 40.2 |
792.8 |
USGS |
3 |
T1 |
I |
2620/MEYERS NUNATAK |
74 54 09.00 |
98 46 19.7 |
631.6 |
USGS |
3 |
T4 |
I |
2519 |
74 32 23.7 |
98 20 49.9 |
833.2 |
USGS |
3 |
Horizontal Datum - Position based on the Astronomic Position of Camp
II determined during the 1968-69 Season.
Vertical Datum - Mean sea level
* A - Astronomical
B- Beaconed - Signal/Cairn & monumented
U - Unbeaconed - Occupied, monumented
O - Occupied, unmonumented
I - Intersected
# Unchecked elevation
** These stations are unidentifiable
+ Quality rating (1:best: 3:worst)
The relative strength of position value shown on the Control Points
Coordinates list for each quadrangle is not an indicator of the accuracy.
It is a number assigned by the USGS based on the number of checks obtained
for that survey point.
As an example, an occupied point with several connections to the surrounding
network is a 1 (highest reliability). Whereas, a point positioned by two
rays intersecting has no check and is assigned a value of 3 (lowest reliability).
(1). Indicates a checked occupied station.
(2). Intersected with 3 or more directions.
(3). Intersected station with no checks - uncertain position - use with
caution.
The Thurston Island/Jones Mtn. survey networks were established to provide
control for mapping using aerial photographs. All of the individual networks
are tied to an astronomic observation taken during the field season of that
survey.
FULL Scene
(185 km x 185 km)
