report

Mission Operations and Ground Segment CONOPS

Overall verdict: PASS
Design signature: 837095c6390ee9493e66d5de27386b78d597bbc34ba6eebbff3692c10685768f
Scope: Mission operations and representative two-site ground-segment concept for the released pre-Phase-A telescope design.
Maturity boundary: Screening-level contact and data-flow allocation; this is not an orbit-access analysis, ground-network service agreement, spectrum licence, or staffed operations plan.

Ground network and contact plan

Contact model: Four daily polar-network opportunities are retained from the released communications screen and allocated between two independent 5 m class sites.
Network: 2 independent sites, 4 contacts/day, average spacing 6.00 h, declared maximum gap 8.00 h.
Availability used for capacity: 0.850.

Station concept	Role	Antenna class	Contacts/day	Usable duration	Services
`polar_north_5m`	`primary_polar_ground_node`	`5.0 m`	`2`	`600 s`	command_uplink, telemetry_downlink, science_downlink
`polar_south_5m`	`geographically_independent_polar_ground_node`	`5.0 m`	`2`	`600 s`	command_uplink, telemetry_downlink, science_downlink

Contact capacity and recorder flow

Science production: 288.622 Gbit/day.
Allocated X-band return: 367.200 Gbit/day; margin factor 1.272 against minimum 1.200.
Routine command load: 4.000 Mbit against 5.222 Mbit/contact effective S-band capacity.
Routine telemetry: 0.500 Gbit/day against 1.632 Gbit/day effective capacity.
Planned one-day outage recovery: 3.673 days against 4.000 days; recorder retention is 14.0 days.
The 14-day recorder figure is an unplanned holdover boundary, not a claim that routine contact margin can clear a 14-day full-rate backlog without reducing science generation.

End-to-end data and command paths

Science Return

detector_packet_source -> payload_data_lane -> payload_router -> solid_state_recorder -> x_band_transmitter -> rf_distribution -> x_band_spacecraft_antenna -> representative_ground_ingest -> science_archive_and_quality_control

detector_packet_source resolves to telescope.cdh.science_data.
payload_data_lane resolves to telescope.cdh.internal_networks.payload_data.
payload_router resolves to telescope.cdh.hardware.spacewire_router_pair.
solid_state_recorder resolves to telescope.cdh.hardware.solid_state_recorder_pair.
x_band_transmitter resolves to telescope.communications.hardware.x_band_transponder_pair.
rf_distribution resolves to telescope.communications.hardware.rf_distribution_pair.
x_band_spacecraft_antenna resolves to telescope.communications.hardware.x_band_phased_array_pair.
representative_ground_ingest resolves to conops.ground_segment.stations.
science_archive_and_quality_control resolves to conops.teams.science_operations.

Command And Telemetry

mission_operations_command_authority -> representative_ground_station -> s_band_spacecraft_antenna -> rf_distribution -> s_band_transceiver -> flight_computer -> flight_software_mode_manager

mission_operations_command_authority resolves to conops.teams.mission_operations_control.
representative_ground_station resolves to conops.ground_segment.stations.
s_band_spacecraft_antenna resolves to telescope.communications.hardware.s_band_low_gain_antenna_set.
rf_distribution resolves to telescope.communications.hardware.rf_distribution_pair.
s_band_transceiver resolves to telescope.communications.hardware.s_band_transceiver_pair.
flight_computer resolves to telescope.cdh.hardware.flight_computer_pair.
flight_software_mode_manager resolves to telescope.flight_software.architecture.

On-orbit operations timeline

Phase	Mission days	Released modes	Contacts/day	Objective
`commissioning`	`0-14`	commissioning	`4`	Check out redundant avionics, RF links, thermal control, power, attitude control, and deployment inhibits before mechanism release.
`deployment`	`14-15`	deployment, standby	`4`	Execute the validated deployment sequence with a ground-authorized start, continuous event telemetry, retained captures, and post-deployment checkout.
`calibration`	`15-45`	standby, science, downlink, momentum_dump	`4`	Establish focus, pointing, detector, thermal, RF, recorder, and science-pipeline calibrations using progressively longer observation blocks.
`nominal_science`	`45-1826.25`	standby, science, downlink, momentum_dump	`4`	Execute daily time-tagged science plans, downlink recorder products, monitor margins, and interrupt the plan for conjunction, anomaly, or safe-mode recovery.

Operations ownership

Function	Owner	Responsibilities
`mission_operations_control`	`spacecraft_operations_lead`	spacecraft health assessment; command authorization; pass execution; anomaly response; safe-mode recovery
`science_operations`	`science_operations_lead`	target planning; observation request validation; data-quality review; science archive release
`flight_dynamics`	`flight_dynamics_lead`	orbit determination; contact prediction; attitude products; conjunction and disposal support
`ground_network_operations`	`ground_segment_lead`	station scheduling; RF configuration; pass receipt accounting; ground-link anomaly response

Checks

Check	Result
`conops_policy_schema_supported`	PASS
`conops_scope_and_maturity_complete`	PASS
`conops_upstream_release_evidence_passes`	PASS
`ground_segment_contact_plan_matches_released_comms`	PASS
`ground_and_mission_operations_ownership_complete`	PASS
`contact_capacity_command_telemetry_and_science_close`	PASS
`contact_sequence_fits_released_pass`	PASS
`command_authority_and_safe_recovery_controlled`	PASS
`end_to_end_command_telemetry_and_data_paths_resolve`	PASS
`operations_timeline_is_contiguous_and_covers_mission`	PASS
`conops_mode_edges_match_released_fdir`	PASS
`contingency_operations_and_maturity_boundary_complete`	PASS