### Instruction:

Extract the cause and effect entities from the following sentence:
Radio-science orbit: In the context of MarcoPolo-R, a Radio-science orbit is an asteroid-bound orbit, favourable to radio science measurements, where the S/C does not require any orbit and attitude manoeuvres in order to remain above 3 km distance to the surface at any time, during four consecutive communication windows of 8 hours

### Assistant:

KEYWORD: In the context of
CONDITION: favourable to radio science measurements
VARIABLE: four consecutive communication windows
NEGATION: does not
AND: and
CAUSE_1: MarcoPolo-R
EFFECT_3: to remain above 3 km distance to the surface at any time
CAUSE_3: four consecutive communication windows of 8 hours.
EFFECT_1: a Radio-science orbit is an asteroid-bound orbit
EFFECT_2: favourable to radio science measurements
CAUSE_2: attitude manoeuvres
NOT_RELEVANT: Radio-science orbit

