Monitor Replication Query

How about using this system table?
https://www.vertica.com/docs/10.0.x/HTML/Content/Authoring/SQLReferenceManual/SystemTables/MONITOR/REMOTE_REPLICATION_STATUS.htm

Thanks I'd previously found REMOTE_REPLICATION_STATUS..... this give the replicated_epoch and the current_epoch for example here is are the results
replicated_time
replicated_epoch
current_epoch
---------------------------------------------------------------------------------------------------------------------------+-----------------+--------------------------------------------------+------------------------+------------------+---------------
DBACORE,BI_WORKSPACE,BI_PROD,AUDIT,HPI,HOMEGATE,SEANO,WARWICK,AVM_STATS_LIVE1,AVM_STATS_LIVE2,AVM_STATS_SANDBOX1,DS_STATS
backup_snapshot
backup_snapshot_G77VS3ZMEX613XL3RHILAPHQRR2GL4TT
2020-07-28 13:27:47+01
1433059
1434707
(1 row)

but looking at the output from vbr command I see ......

Snapshotting the source database.
Snapshot complete.
Copying catalog snapshot from source to destination.
Preparing destination database for replicating objects.
Prep complete, start syncing files.
Approximate bytes to copy: 267765680544 of 1538277261507 total.
[====..............................................] 9%

so what I'd like to know (or even be able to look at in advance) is what is making up the 267765680544 bytes that it mentions - this equates to approx 250GB
the vbr log itself - this doesn't seem very informative ..... but whilst vbr is running there is a directory with _to_copy.manifest when this then contains the sal_storage_id ...... so using this I can sort of work out what is being copied .... but is there no way that I can work this out using the epochs and a straightforward query maybe ?