Please acknowledge Chris J. Owen (SWA PI -- UCL MSSL) & Stefano Livi (HIS PI -- SwRI). NASA Contract NNG10EK25C.

Solar Orbiter Level 2 Solar Wind Analyser Heavy Ion Sensor Housekeeping Parameters

These Level 2 data require substantial processing for most applications.  Users are encouraged to use Level 3 data, which provide the most relevant data products for scientific research.  See Data Product Description Document for more information.  Contact SWA/HIS team for more information as needed.

HK data for HIS instrument.
For details see Telemetry Definitions Document, 15164-TELDEF-01.
Usage notes can be found via the SWA DOI at https://doi.org/10.5270/esa-ahypgn6.

Time in nanoseconds since January 1, 2000, 12:00:00.000. Converted using time correlation SCET via SPICE time kernel provided by the mission. Currently set to start of accumulation interval.

Mission elapsed time in spacecraft clock ticks.  Note:  These are effected by environmental conditions and do not match Earth-based seconds. Beginning of accumulation.

0 = 781.3 Kb/s:1 = 1.563 Mb/s:2 = 3.125 Mb/s:3 = 6.25 Mb/s Invalid when DSCB_COMM_ACTIVE is 0

Stops counting at 65535, must be cleared by command Invalid when DSCB_COMM_ACTIVE is 0

Status on whether the CDH watchdog timed out (and caused a reset)

Subservice of last accepted instrument command (not from macros)

Source sequence count of last accepted instrument command (not from macros)

Subservice of last rejected instrument command (not from macros)

Source sequence count of last rejected instrument command (not from macros)

Status on whether the CPU watchdog timed out (and caused a reset)

0 = Normal Mode / TOF Only:1 = Energy Mode (Energy and TOF):2 = Energy Only (No TOF):3 = Either Mode (TOF or Energy) Invalid when DSCB_COMM_ACTIVE is 0

0 = Disabled:1 = Enabled. Set if FSW state machine is in RUNNING state and DSCB Opto-Link is communicating.

Detector Section FPGA Revision Invalid when DSCB_COMM_ACTIVE is 0

0 = UNLIMITED:1 = LIMITED-AIRSAFE Invalid when DSCB_COMM_ACTIVE is 0

0 = Not Occurred:1 = Occurred. DSCB automatic limit monitoring tripped.

0 = Not Occurred:1 = Occurred. DSCB communications failed (not receiving Write ACK, not receiving Read response, not receiving anything, watchdog timeout on higher link speeds).

0 = Not Occurred:1 = Occurred. DSCB failing downlink speed test.

0 = Not Occurred:1 = Occurred. DSCB not reaching run state after timeout.

0 = Not Occurred:1 = Occurred. DSCB register initialize/update failed (on startup or before entering a science mode).

0 = Not Occurred:1 = Occurred. Emergency Safe - Loss of S20, pending power down, or thruster firing preceding turnoff.

0 = None:1 = Thruster Firing Start:2 = Red Limit:3 = Emergency Fast Safe:4 = Yellow Limit:5 = Nominal Slow Safe:6 = Solar Array Steering Start:7 = DSCB Automatic Limit:8 = Task Timeout:9 = DSCB Not Running:10 = DSCB Downlink Undetermined:11 = DSCB Register Initialization:12 = DSCB Communications Loss:13 = Science Auto-Mode Fail:14 = Thruster Firing Stop:15 = Solar Array Steering Stop

0 = Not Occurred:1 = Occurred. Nominal Slow Safe - Long HV Rampdown.

0 = Not Occurred:1 = Occurred. Analog monitor red limit fail - expectation is that all HV comes down quickly, hence higher priority than S20 loss and thruster firing.

0 = Not Occurred:1 = Occurred. Automatically changing a science mode (Burst to Normal, or restarting from an uncorrectable error) failed.  Possible reasons are DSCB communication fail (its own FDIR) or a corruption and failed decompression of priorities lookup table.

0 = Not Occurred:1 = Occurred. Solar Array Steering End - Return to Science.

0 = Not Occurred:1 = Occurred. Software tasks have timed out. Likely no science data being generated.

0 = Not Occurred:1 = Occurred. Thruster Firing Exit - Return to Science.

0 = Not Occurred:1 = Occurred. Analog monitor yellow limit fail.

Current step table pointer from the sweep table - E/Q index (scan or data selectable)

Currently selected row of scan control table (scan or data selectable)

Ave, Min, Max. When SWEEP_EN_ANALYZER is 1, AVG set to fill and MIN/MAX might be swapped. AVG also set to fill when not between MIN/MAX (can happen at end of sweeping). Also, if associated Polarity or Range values vary over avg/min/max, then the avg here is set to fill and the min/max values here may be suspect.

Ave, Min, Max. When SWEEP_EN_BOT_DEF is 1, AVG set to fill and MIN/MAX might be swapped. AVG also set to fill when not between MIN/MAX (can happen at end of sweeping). Also, if associated Polarity or Range values vary over avg/min/max, then the avg here is set to fill and the min/max values here may be suspect.

Ave, Min, Max. When SWEEP_EN_TOP_DEF is 1, AVG set to fill and MIN/MAX might be swapped. AVG also set to fill when not between MIN/MAX (can happen at end of sweeping). Also, if associated Polarity or Range values vary over avg/min/max, then the avg here is set to fill and the min/max values here may be suspect.

Ave, Min, Max. When SWEEP_EN_TOP_PLATE is 1, AVG set to fill and MIN/MAX might be swapped. AVG also set to fill when not between MIN/MAX (can happen at end of sweeping). Also, if associated Polarity or Range values vary over avg/min/max, then the avg here is set to fill and the min/max values here may be suspect.

Number of seconds over which the data in this product was collected

0 = None:1 = Auto Timed Transition:2 = Command / Macro:3 = Failure

0 = Off:1 = Boot:2 = Boot Maintenance:3 = Safe:4 = LV Engineering: 5 = HV Standby:6 = Normal Science:7 = Burst Science:"8 = Pre-Burst:9 = Pre-Normal 

0 = HIGH:1 = RISE_GT_FALL:2 = FALL_GT_RISE:3 = FREQ_MISMATCH Invalid when DSCB_COMM_ACTIVE is 0

Sub-Seconds timestamp of when the packet accumulation ended and the last data sample was collected

Seconds timestamp of when the packet accumulation ended and the last data sample was collected

Whether analyzer supply is sweeping or static while in sweeping mode

Whether bottom deflector supply is sweeping or static while in sweeping mode

Whether top deflector supply is sweeping or static while in sweeping mode

Whether top plate supply is sweeping or static while in sweeping mode

Specifies whether reported sweep table pointers are for scan or data