How current is my data, and why does a past reading change

Augos meters record every 60 seconds and hold data in onboard memory when they lose connection. When the connection returns they publish the backlog. So a period is not final until the meter has published past the end of that period. Before taking a reading, check the point's last activity timestamp.

What you will see

• "I read a figure for last Tuesday, and when I looked again on Friday it had gone up."
• "Augos is always lower than the utility meter when I read them on the same day."
• "There is no data for today, but yesterday's arrived this afternoon."
• "Was the data lost while the meter was offline?"

Why it happens

Meters lose connection for all sorts of reasons: network coverage, a power event, a depleted data allocation. Rather than losing the readings, the meter stores them and sends them later. This is why a historical figure can grow after the fact, and why a period read too early reads low.

Two fields help you tell what is happening:

• Last activity is the time of the last file the meter published. If that time is not after the end of the period you are reading, the figure for that period can still change.
• On the raw data view, the datestamp is when the file arrived and the date is the period the file covers. A file arriving this afternoon carrying 01:00 data means the meter is working through a backlog, not that data is lost.

What to do

1. Before you take a reading for reconciliation, check last activity on the point.
2. If it is not current, wait. If you need the reading now, note that it is provisional.
3. When comparing against a utility meter, read Augos a day after you read the physical meter. That gives the backlog time to arrive.
4. Watch back-fill progress on Technical Analysis. It fills in from the earliest missing point forward, so you can see how far it has caught up.

Good to know

• Buffered data publishes complete. A meter that was offline for a week and comes back will normally give you the whole week.
• There is a limit. If the meter never captured the data in the first place, for example because it was without power or a parameter was missing from what it sent, buffering cannot recover it. See Recovering missing data.
• A date picker that will not let you select past a certain day is usually telling you the meter has not published beyond that day. It is not a fault in the date picker.

Still stuck

Email support@augos.io with the point path and the period. Support can see the publishing log and tell you whether the meter is behind, offline, or complete.