MOUNT GALLA
NO NUMBER ASSIGNED
75º - 76º S, 124º 30' - 129º 15' W
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Satellite Imagery
FULL Scene
(185 km x 185 km)
Landsat 5: LT5015114008635710
Path 015 Row 114 - 23 December 1986
Quad map outlined in red. Up in image is roughly 35 degrees True.
Sun elev: 27 deg / Sun azimuth: 78 deg
Click on image to view larger version
B&W: 207K 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)
Hand Held Ground Photography - Take on The
Byrd Station Traverse 1959-60
(click on photos to view larger version; average size
92K jpeg)
Quadrangle Control Network (Click on quadrangle
control diagram to see full control network)
MARIE BYRD LAND CONTROL
Flood Range to Mount Murphy Area
1967-68 Season
Engineers: Jack Harry, Charles Henkle, Lenny Hill, Tom
Taylor
Terrestrial survey network employing Wild T-2 theodolite
for angular measurements and Electro-tapes for distance measurements.
DKM-3A used for astro measurements.
BYRD STATION TRAVERSE
1959-60 Season
Engineer: William H. Chapman
Intersected peak positions determined from the solar position
of M639
Elevations determined by altimeter traverse based on Byrd
Station elevation of 1530 meters
Wild T-2 used for angular 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+
|
LOIS |
O |
2464/K5/621 |
75 56 28.293 |
125 51 33.804 |
2510.7 |
USGS |
1 |
M639 |
O |
MILE 639 |
75 42 41 |
125 37 53 |
1690 |
USGS |
1 |
Horizontal Datum - Positions are based on the Astronomic Position of
Snoopy Astro determined during the 1966-67 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 Marie Byrd Land survey networks are individual networks with positions
based on astronomic observations taken during the field season of that survey
and were established to provide control for mapping using aerial photographs.
FULL Scene
(185 km x 185 km)
