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DRAFT_3GM_BSRCharacterisation of the surface by determination of roughness, dielectric constant of surface material and material density. The chosen antenna points towards surface, radio signal reflects from surface and received on ground. USO unmuted. The HAA shall be ON to calibrate the sloshing potentially excited by pointing the HGA toward a moon’s Surface.3GM
DRAFT_3GM_OCCULTATIONThe radio science experiment 3GM, with its dual-frequency radio links (X and Ka-band) referenced to an ultrastable oscillator (USO), is performed as JUICE spacecraft moves in and out of occultation. Occultations occur throughout the jovian tour, but their phasing is not always synchronized with the timing of dedicated Jupiter observations by the other orbiter experiments. USO unmuted, HAA in NOMINAL SCIENCE. Note that 2 other options exist for torus occultations but are not (yet) defined in the database3GM
DRAFT_3GM_GRAVITY_TOURKaT and HAA should be operating during gravity measurement USO assumed to be ON during the full tour: this should be defined in the scenario set-up and not at 3GM observation approach. HAA should be in STANDBY mode at least 48 hours before the gravity measurement. The observation should start with 1 hour of HAA in CALIBRATION mode. KaT starts with 10min of warm-up.3GM
DRAFT_3GM_GRAVITY_GCO500_200Gravity measurement during GCO500 and GCO200 will use the HGA during downlink sessions. If not possible, it will use the MGA. KaT and HAA should be operating during gravity measurement. USOis OFF during this phase (except in case of BSR opportunity). HAA should be in STANDBY mode at least 48 hours before the gravity measurement. The observation should start with 1 hour of HAA in CALIBRATION mode. KaT starts with 10min of warm-up.3GM
DRAFT_3GM_GRAVITY_FLYBYSGravity measurement during flyby requires the use of the MGA. KaT and HAA should be operating during gravity measurement USO assumed to be ON during the full tour: this should be defined in the scenario set-up and not at 3GM observation approach. HAA should be in STANDBY mode at least 48 hours before the gravity measurement. The observation should start with 1 hour of HAA in CALIBRATION mode. KaT starts with 10min of warm-up.3GM
3GM_USO_ONUSO is SWON and muted3GM
3GM_RADIO_OCCULTATIONSThe radio science experiment 3GM, with its dual-frequency radio links (X and Ka-band) referenced to an ultrastable oscillator (USO), is performed as JUICE spacecraft moves in and out of occultation. USO unmuted, HAA in NOMINAL SCIENCE. Note that 2 other options exist for torus occultations but are not (yet) defined in the database3GM
3GM_HAA_STANDBYHAA in STANDBY mode3GM
3GM_GRAVITY_FOR_EPHEMERIDESKaT ON during communication windows3GM
3GM_GRAVITYKaT and HAA for gravity science3GM
3GM_BISTATIC_RADARcharacterization of the surface by determination of roughness, dielectric constant of surface material and material density. The chosen antenna points towards surface, radio signal reflects from surface and received on ground. USO unmuted3GM
3GM_HAA_CALIBRATIONHAA in CALIBRATION mode Duration: 50min3GM

12 observation definitions