SCP-677
Safe
?
low confidence
SCP-677
Expected annual
$2.9M
One-time setup
$302.1M
Annual recurring
$1.3M
Personnel
8.2
Initial one-time capital (lab, transport, contingencies) ~ $302M driven almost entirely by an optional early-retrieval mission; baseline annual recurring operations (monitoring, staff, readiness, legal/insurance) ~ $1.33M/yr with occasional per-event response costs in the low hundreds of thousands.
One-Time Capital Costs
Total: $302.1M
Annual Recurring Costs
Total: $1.3M/yr
Cost Scenarios
📊
Baseline
(baseline)
$1.3M/yr
Normal year: monitoring, staffing, readiness and routine maintenance only; no reentry/recovery event.
continuous monitoring
no reentry event
routine maintenance
🚨
Minor Reentry Event
$1.7M/yr
Controlled/expected reentry occurs and field recovery is executed with standard search and recovery operations.
predicted reentry
field recovery/search
limited PR/legal work
🚨
Major Uncontrolled Reentry
$5.5M/yr
Uncontrolled or populated-area impact requiring evacuations, large remediation, major legal/PR response and insurance payouts.
uncontrolled reentry
populated impact
large-scale remediation/evacuations
🚨
Early Retrieval Mission
$301.3M/yr
Decision to mount an interplanetary retrieval mission (rendezvous and return) to retrieve SCP-677 before natural reentry.
policy decision to retrieve
scientific/containment urgency
availability of launch window
Personnel
8.2 total
| Role | Count | Notes |
|---|---|---|
| Astrodynamics Analyst | 1 | [#3] Full-time astrodynamicist for orbital prediction and modeling. |
| Data Analyst | 1 | [#3] Full-time data analyst for telescope/ground-station data reduction. |
| Project Manager / Admin (part-time) | 0.2 | [#3] Part-time project manager/administration support (0.2 FTE). |
| Precision Manipulator / Remote-Handling Operator | 3 | [#11] Skilled operators/engineers for dismantling and remote-handling. |
| Security Officer / Guard (Site storage) | 3 | [#19] Dedicated guards for locker rotation and site security. |
Confidence Notes
Ranges in the analyst notes are broad (especially for transport charters, evacuation, and an optional retrieval mission) and the object's unpredictable reentry/energy introduces large uncertainty — cost estimates are order-of-magnitude and policy-dependent.