Data_Block_OSV

xml record "Data_Block_OSV"
Cryosat Orbit State Vector Data Block

attribute: type
xml stringsize: 3
fixed value: "xml"


idfield namedefinition
0List_of_OSVs
xml record
attribute: count
xml string


idfield namedefinition
0OSV
xml array[dim_0]
dim_0: determined automatically from xml file
xml record
idfield namedefinition
0TAI
xml time
TAI date and time of OSV, in ASCII standard time format, including time reference and micro-seconds

unit: "s since 2000-01-01"

value: if(length(.) == 0, nan, if(str(., 30) == "TAI=9999-99-99T99:99:99.999999", +inf, if(str(., 30) == "TAI=0000-00-00T00:00:00.000000", -inf, time(str(.), "'TAI='yyyy-MM-dd'T'HH:mm:ss.SSSSSS"))))
xml string
1UTC
xml time
UTC date and time of OSV, in ASCII standard time format, including time reference and microseconds

unit: "s since 2000-01-01"

value: if(length(.) == 0, nan, if(str(., 30) == "UTC=9999-99-99T99:99:99.999999", +inf, if(str(., 30) == "UTC=0000-00-00T00:00:00.000000", -inf, time(str(.), "'UTC='yyyy-MM-dd'T'HH:mm:ss.SSSSSS"))))
xml string
2UT1
xml time
UT1 date and time of OSV, in ASCII standard time format, including time reference and microseconds

unit: "s since 2000-01-01"

value: if(length(.) == 0, nan, if(str(., 30) == "UT1=9999-99-99T99:99:99.999999", +inf, if(str(., 30) == "UT1=0000-00-00T00:00:00.000000", -inf, time(str(.), "'UT1='yyyy-MM-dd'T'HH:mm:ss.SSSSSS"))))
xml string
3Absolute_Orbit
ascii uint16
absolute orbit counter This counter is incremented by one unit from a record to the next. It must be differenciated with the real absolute orbit number on which the state vector really belongs i.e : if the Z value of the OSV is >= 0 then "real" absolute orbit number equal the absolute orboit counter if the Z value of the OSV is < 0 then "real" absolute orbit number equal the absolute orbit counter minus 1
4X
ascii double
X position in earth-fixed coordinate system

unit: "m"

attribute: unit
ascii stringsize: 1
fixed value: "m"
5Y
ascii double
Y position in earth-fixed coordinate system

unit: "m"

attribute: unit
ascii stringsize: 1
fixed value: "m"
6Z
ascii double
Z position in earth-fixed coordinate system

unit: "m"

attribute: unit
ascii stringsize: 1
fixed value: "m"
7VX
ascii double
X velocity in earth-fixed coordinate system

unit: "m/s"

attribute: unit
ascii stringsize: 3
fixed value: "m/s"
8VY
ascii double
Y velocity in earth-fixed coordinate system

unit: "m/s"

attribute: unit
ascii stringsize: 3
fixed value: "m/s"
9VZ
ascii double
Z velocity in earth-fixed coordinate system

unit: "m/s"

attribute: unit
ascii stringsize: 3
fixed value: "m/s"
10Quality
xml string
Values is/are TBD. This parameter is added to keep format compatibiolity withe DORIS Precise Orbit File Format. Default ("not used") value is "0000000000000"