# Parameters
mk_ops_id = "juice_ops_v440_20240201_001"
mk_plan_id = "juice_plan_v440_20240109_001"
report_days = 15
JUICE Cruise Report for juice_ops_v440_20240201_001¶
Abstract¶
The JUICE cruise trajectory report provides an overview of geometrical quantities and parameters of interest for a quick assessment of the current status of the JUICE cruise from the perspective of the JUICE Science Operations Center and to support the cruise activities of the instrument teams. The report is based on a given version of the Operational (ops) and Planning (plan) SPICE meta-kernels. Previous versions of the reports can be accessed from this link: https://juicesoc.esac.esa.int/cruise_reports/
Cruise Geometry Plots for 2024-01-16T23:59:29 - 2024-03-01T00:00:00¶
The following geometry plots are provided for the observed period:
- S/C Attitude Angular Deviation in between the Planned and Measured attitude (Rotation around the resuling axis of the S/C rotation)1
- S/C +Y axis Right Ascension and Declination in ECLIPJ2000 from the Measured attitude (contextualizes the S/C flips)
- S/C to Sun angle with respect to the S/C +X Panel (including illumination warnings)
- S/C to Sun angle with respect to the S/C +Z Panel (including illumination warnings)
- Angle between HGA boresight and S/C to Sun direction
- Angle between HGA boresight and S/C to Earth direction
- Angle between Solar Arrays Normal and S/C to Sun direction from the S/C HK telemetry
- MGA Azimuth and Elevation from the S/C HK telemetry
- Angle between MGA boresight and S/C to Earth direction from the S/C HK telemetry
These plots might include either or both the Planned Attitude (as provided by Flight Dynamics in the ATTC Cruise Attitude Ephemeris Messages) and the Measured Attitude (the as-flown or executed attitude extracted from the Housekeeping telemetry of the S/C). The S/C Attitude Angular Deviation is provided as a single angular "error" that is calculated by obtaining the S/C rotation matrix for both the measured and planned attitude and obtaining the difference in between the angular rotaiton around the resulting rotation axis. More information of the Angular Rotation can be obtained from the header of the SPICE function in use.
The geometry plots include the following Flight Dynamics events in the background as orange intervals:
- FLP Time periods when a flip to pass attitude happens
- FLO Time periods when a flip to out-of-pass attitude happens
- IXP Time periods when the sun illuminates the SC on the +X face
- HGA Coverage period of the high gain antenna (HGA)
- MGA Intended coverage period of the medium gain antenna (MGA)
- WOL Period of a wheel off-loading (WOL) slot.
- OMA Period of an orbit control manoeuvre (OCM) slot using the chemical propulsion system.
The coverage of these plots is determined by the end time of the latest Measured (as-flown) attitude CK Kernel from the S/C Housekeeping telemetry (2024-01-31T23:58:59) or by the Predicted (ATTC) attitude CK Kernel from Flight Dynamics (2024-03-01T00:00:00) and its start time is set to 15 days before (2024-01-16T23:59:29).
The resolution of the plots is set to 90s.