OPUS question

Yep. Wait another day or two and try submitting again.

Double Yep.

Dave

Thanks, It will be interesting to see what the difference is when I re-submit next week.

Take a look at the chart linked here http://igscb.jpl.nasa.gov/components/prods.html
You will see that even the ultra-rapid orbits are extremely good. Unless the CORS used are extremely distant, I doubt the difference in orbit source will have much impact. More likely, waiting will allow more CORS data to become available.

Remember that SV position error over distance to SV is equal to baseline error over baseline length.
( SV error / distance to SV) = ( BL error / BL length)

HTH,

DMM

P.S. Expected error is the itsy-bitsy range as commented below.

Itty-bitty but mo' bettah.

> Does this mean I submitted too soon?
Not really. It is likely that the result you get from ultra-rapid orbits will be virtually the same as with the rapid orbits a day later. Especially if your site is in the open and you have plenty of data.

Be sure to check which CORS are used because if you are really early you might find that the data from your closest CORS was not yet available to OPUS. That would be too soon.

Rapid orbits become available by 1700UTC the next day. That's quitting time in London, lunch time in Oklahoma, and mid morning here on the west coast.

Rapid Orbit Should Be Available Now

Generally about noon EST.

Also check that the Nearby CORS data is in.

OPUS-RS requires good clean data, better than OPUS uses and sometimes the CORS data has to be filtered. That does not happen overnight. Even if you get an OPUS-RS solution today, resubmit next week and compare the CORS used.

I checked the IGS site and the rapid orbit is not yet out at 12:45 EDT.

Paul in PA