3/27/00
00 48.37 S LATITUDE
91 05.26 W LONGITUDE
General Location and Strategy: SN06 is on the eastern caldera rim and is part of the grid meant to capture large-scale deformation of the caldera and summit region of the volcano.
Days measured: 07 Jan 00 - 08 Jan 00
(Southeast caldera rim, hill next to Chico trail)
Monument SN6 is set upon a fern-covered hill (just to north of caldera view). The site is situated on solid rock.
Antenna height: 0.555m + 0.108m = 0.663m
Power up: 1349h (local), 07 Jan 00
Power down: 0800 1/9/00
2000 Results:
Data from 3 GPS days were combined (1/7/00-1/9/00). Solution was made by fixing Base (SN01).The first reported uncertainty uses the sigma of the coordinate group as a scaling factor and may be too pessimistic. The second uses the sigma of the single difference observations as a scaling factor.
X = -121078.7308 ± 1.7, 0.4 mm
Y = -6377346.821 ± 10.2, 2.5 mm
Z = -89191.1739 ± 1.7, 0.4 mm
ht. = 986.8588
Lat. = -0 48 23.465618
Long. = -91 05 15.622213
Photo from 1 km north of SN06 on caldera rim trail. Monument is in bedrock
at top of fern-covered cinder cone.
Photo from 200 m S, at low point (saddle) in trail.