LTP08 Q3-2022

LTP08 is running from 2022-06-27T00:00:00 until 2022-09-26T00:00:00.

Orbital context

Plots are in GSE (geocentric solar ecliptic) coordinates, so Earth is at [0,0], the Sun is at [1,0]. The plot is the projection of the orbit on the ecliptic plane. 

Animated Version: Orbit_GSE_2022H2.mp4

Definition for the grey shading representing downlink rates:

• white = maximum downlink rate at which you can empty the SSMM in ~10 days
• light-grey = SSMM fill state decreases with everyone operating at EID-A rates
• mid-grey = SSMM fill state increases within RSW (10 instruments operating) and decreases outside RSW (IS-only breakeven rate < downlink rate < inside-RSW breakeven rate )
• dark-grey = SSMM fill state increases with just IS operating (downlink rate < IS-only breakeven rate)

RS window placement

No RS windows in this period

GAMs and conjunctions

• Venus GAM-3 on 2022-09-03 to 04. The associated navigation window with regular Trajectory Manoeuvre Corrections runs from 2022-08-01 to 2022-09-12.
• Superior conjunction (i.e. no data downlink) from 2022-09-23 to 2022-10-04 (ends outside LTP8)
• Also note that S/C will be rolled to 60 degrees wrt the orbital plane from 2022-09-02 to 07

Science and calibration planning

IS calibrations:

RS calibrations: 

• 2022-09-22 00:00: PHI/EUI flatfield calibration for full disk telescopes (CALIB_OFFPOI_FLATFIELD)
• Metis star calibrations (nominal disk centre pointing):
  • Theta Oph around 9 July
  • Sigma Sgr around 7 August
  • HD 210424 around 17 September

IS-only science:

Coordinated science (and cross-calibration) campaigns:

none

Spacecraft calibrations:

• 2022-07-04: SA characterisation. This is a SA movement so it shouldn't go close to major IS activity, but otherwise is relatively low impact.

SOOP Kitchen plan

High-level (=MLP) plan: https://solarorbiter.esac.esa.int/soopkitchen/#/planning/plan/Mission%20Level%20Plan%20for%20NMP%20Segment%201

Starting point for LTP08 planning in SOWG: https://solarorbiter.esac.esa.int/soopkitchen/#/planning/plan/LTP08_Jun2022-Sep2022/541

Final plan LTP08: https://solarorbiter.esac.esa.int/soopkitchen/#/planning/plan/LTP08_Jun2022-Sep2022

Reference material

• TN on star calibration opportunities and planetary transits