Are there any ground station scheduling software that handle real-time updates without missing pass changes?

Yes — but with an important caveat: the scheduling software alone usually isn’t enough. To avoid missing pass changes in real time, you generally need a system that combines:

1. A scheduler
2. A live ephemeris/pass prediction source
3. An event/update mechanism from the satellite dynamics or mission ops system
4. Fast rescheduling logic and conflict resolution

Software/platforms that are commonly used for this

Depending on your environment, these can support real-time or near-real-time updates:

• Agile Tools / mission operations schedulers
  Often used in satellite ops centers and can react to updated pass predictions if integrated properly.

• GMV scheduling solutions
  GMV has mission planning and ground segment tools used in operational environments, including dynamic rescheduling.

• Ansys Systems Tool Kit (STK) with Scheduler / Connect API
  STK is widely used for analysis and can be integrated into custom scheduling workflows, though real-time handling usually requires your own integration layer.

• Custom schedulers built on APIs
  Many operators use a custom scheduler paired with:

  • orbital propagation tools
  • event-driven updates
  • message queues / pub-sub
  • ground station control interfaces

What to look for

If your concern is “without missing pass changes,” the key features are:

• Event-driven updates rather than polling only
• Low-latency propagation updates
• Atomic schedule updates so a pass change can’t be partially applied
• Conflict detection and auto-replanning
• Versioning / audit trail for schedule changes
• Integration with orbit determination or TLE refresh pipelines

Practical recommendation

If this is for a real operational system, the safest approach is usually:

• Use a scheduling engine with API access
• Subscribe to pass update events
• Keep a rolling schedule window updated every few minutes or on trigger
• Add a pre-pass verification step shortly before acquisition of signal

If you want a specific recommendation

Tell me:

• whether this is for LEO / GEO / deep space
• how many ground stations and satellites
• whether you need commercial software or open source
• what “real-time” means for you (seconds, minutes, or sub-minute)

Then I can suggest software options that fit your setup more precisely.