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_LTP03.mp4

New definition for the grey shading representing downlink rates:

RS checkout window placement

Period

Window/GAM

EXT Start

Start

End

Heliocentric
Distance
Range [AU]

Heliographic
Latitude
Range [deg]

SC-Sun-Earth
Angle
[deg]

Conjunction

Safe Mode Comms Blackout

Largest Comms Roll

GAM Restrictions

LTP 03

RSCW2 (warm)

n/a2021-02-20T00:00:002021-02-25T00:00:00

0.513

0.523

0.535

2.17

2.22

2.22

145.04

140.22135.70nono0 (TBC)no
LTP 03RSCW3 (extra-cold)n/a2021-03-21T00:00:00

2021-03-24T00:00:00

0.689

0.6990.7091.311.231.15

107.79

106.82105.92nono0 (TBC)no

GAMs and conjunctions

Science and calibration planning

In blue: Updates made after MLP planning for LTP3 (MLP of Cruise during SWT#27). Red text refers to work to do during SOWG16.

IS science + second and third opportunity for RS payload to characterise and calibrate the instruments.

Coordinated campaigns:

(star) Note that off-pointing sequences and rolls were requested to MOC (flight dynamics) before LTP planning and timing/details cannot be changed anymore at time of Long Term Planning. Final consolidation has been done at SWT 27 (spring 2020). Off-pointing, roll and dwell events are now part of the LTP plan in SOOP Kitchen - link below).

(**) Note that originally we planned to coordinate observations of Sigma Sgr, but analysis with new orbit file revealed that we don't get an actual occultation, and as the star does not approach the limb to within 10 arcmins, the high-res telescopes cannot observe it. See attached figure: Y axis is angular distance from the limb in radians.

Opportunities for Coordination with PSP

During this planning period there are several interesting opportunities for coordinnated observations with Parker Solar Probe:

More details on SO-PSP Coordination WG

SOOP Kitchen plan

High-level (=MLP) plan of whole cruise:

Starting point for LTP03 planning in SOWG#16: https://solarorbiter.esac.esa.int/soopkitchen/#/planning/plan/LTP03_Jan2021-Jun2021

Final plan LTP03: https://solarorbiter.esac.esa.int/soopkitchen/#/planning/plan/LTP03_Jan2021-Jun2021_PostSOWG

Date of original distribution of LTP products (v 04) to GFTS: The released version (v04) corresponded to baseline 14 / version 332 and included the changes listed here: changes made to LTP03 post-SOWG 16.

Date of distribution of latest products (v 05) to GFTS:   (The released version (v05) corresponds to baseline 15 / version 353.) This version is designed to further add RSW_EXT_METIS and HSD opening/closing for Metis around urgently needed UV calibration measurements of standard stars between 15th and 17th March 2021 (in STP-139), along with associated disturbance events ATT_DIST and EMC_PREF_NOISY.

Changes made to the LTP03 plan after the SOWG:

You can find a list of the changes made to LTP03 post-SOWG 16 here.