All that it means is that the TurboTax system has received it. The IRS is not accepting returns yet and won't until the 14th. TurboTax will then send your return to the IRS. IF the IRS accepts the return, TT will send you an e-mail that will include the DCN for your return.
When the IRS accepts your return, all that it means is that it passed a first check for gross errors, such as duplicate SSNs or name-to-SSN mismatches. Your return may still be pulled for further evaluation or kicked back to you for correction of other errors.
The first round of refunds is scheduled out on Jan 28th. You won't see yours before then.