GSOF message: Position VCV

This message describes the Position VCV information. It contains the following data:

• Position RMS

• VCV xx

• VCV xy

• VCV xz

• VCV yy

• VCV yz

• VCV zz

• Unit variance

• Number of epochs

Position VCV information (Type 11 record)

Field	Item	Type	Value	Meaning
0	Output record type	Char	0Bh	Earth-Centered, Earth-Fixed (ECEF) position output record.
1	Record length	Char		Bytes in record.
2 to 5	Position RMS	Float		The range residual RMS is the square root of the sum of the squares of the range residuals divided by the number of degrees of freedom in the solution.
6 to 9	VCV xx	Float		VCVxx through VCVzz is the variance-covariance matrix. This contains the positional components of the inverted normal matrix of the position solution in a ECEF WGS-84 reference.
10 to 13	VCV xy	Float
14 to 17	VCV xz	Float
18 to 21	VCV yy	Float
22 to 25	VCV yz	Float
26 to 29	VCV zz	Float
30 to 33	Unit variance	Float		The unit variance of the position solution.
34 to 35	Number of epochs	Short		Indicates the number of measurements used to calculate the position. It may be greater than 1 for positions subjected to a STATIC constraint.