Data Access
This data set contains calibrated Housekeeping data incoming from the Main Unit (MU).
Version:2.4.0
This data set contains calibrated Housekeeping data incoming from the Main Unit (MU).
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://CNES/Person/CDPP-Archive/Stas.Barabash |
Access via CNES Data Archive for CDPP
HK i +30V in milli-amperes
HK i +5V in milli-amperes
HK V +12V in Volts
HK V +30V in Volts
HK V +5V in milli-amperes
HK V -12V in Volts
HK V -5V in Volts
Sun sensor 1 output
Sun sensor 2 output
IMA +/-5V on/off The field takes one of the following values: 0 off 1 on
IMA +30V on/off The field takes one of the following values: 0 off 1 on
IMA +/-12V on/off The field takes one of the following values: 0 off 1 on
Software mode
CPU load
It contains status register of IEEE 1355 LINK Chip. This field value has to be decoded in Binary format. Bit description: bit: 7: ndata0A bit 6: crdMEM bit 5: datav bit 4: resetm bit 3: ffrx bit 2: EOP1 bit 1: ndata0 bit 0: nm1 In typical nominal operation one should find value 0x41 on the link when link is working properly.
The CRUISE sub-phase corresponds to data collected before the VOI (VENUS Orbit Injection), including the Near Earth Verification (NEV) and Interplanetary Cruise (IC) sub-phases. After the VOI, the nominal mission is divided into different VENUS mission sub-phases defined by the VENUS EXPRESS mission planning.
Orbit number
Orbital Eccentricity
Orbital Inclination
Orbital Semimajor Axis
Periapsis Altitude
Periapsis Argument Angle
Periapsis Time in milliseconds.
The time of periapsis passage is the time when the satellite reaches periapsis.
Time base: J2000
Time scale: Terrestrial Time
The SPACECRAFT_ORIENTATION element defines the Venus Express direction of flight with respect to its spacecraft reference frame. The direction of flight is given as a 3-tuple (x,y,z). The paragraph below describes how to derive the (x,y,z) values. When the spacecraft is in nadir pointing mode, the +Z axis points towards the centre of Venus and the +X axis is perpendicular to the ground track. Unlike Mars Express, the speed vector of the spacecraft can be tilted from the +Y axis direction at an angle a. The 3-tuple (x, y, z) defines the coordinates of the normalised spacecraft speed vector. As a consequence, we have: x = sin a y = cos a