XML Specification for Navigation Data Messages - CCSDS

DRAFT XML SPECIFICATION FOR NAVIGATION DATA MESSAGES
OMM Logical Block
Mean Keplerian Elements
Spacecraft Parameters
TLE Parameters
Covariance Matrix
User Defined Parameters
Associated NDM/XML OMM Tag
Between the begin tag and end tag (e.g., between and
), the user must place the keywords required by the
specific logical block as specified in reference [2].
NOTE – For the use of , see 4.13.
4.9.3.3 UNITS IN THE NDM/XML OMM
Several of the NDM/XML OMM keywords may have a unit attribute, if desired by the OMM
producer. In all cases, the units shall match those defined in reference [2]. The following
table lists the keyword tags for which units may be specified.
CX_X, CY_X, CY_Y,
CZ_X, CZ_Y, CZ_Z
CX_DOT_X, CX_DOT_Y,
CX_DOT_Z, CY_DOT_X,
CY_DOT_Y, CY_DOT_Z,
CZ_DOT_X, CZ_DOT_Y,
CZ_DOT_Z
CX_DOT_X_DOT,
CY_DOT_X_DOT,
CY_DOT_Y_DOT,
CZ_DOT_X_DOT,
CZ_DOT_Y_DOT,
CZ_DOT_Z_DOT
km**2
km**2/s
km**2/s**2
Keyword Units Example
SEMI_MAJOR_AXIS km numericvalue
MEAN_MOTION rev/day numericvalue
INCLINATION deg numeric-value
RA_OF_ASC_NODE deg numericvalue
ARG_OF_PERICENTER deg numericvalue
MEAN_ANOMALY deg numericvalue
GM km**3/s**2 numeric-value
MASS kg numeric-value
SOLAR_RAD_AREA m**2 numericvalue
DRAG_AREA m**2 numeric-value
BSTAR 1/ER numeric-value
MEAN_MOTION_DOT rev/day**2 numericvalue
MEAN_MOTION_DDOT rev/day**3 numericvalue
numeric-value
numeric-value
numericvalue
CCSDS 505.0-R-2 Page 4-16 June 2009