A relative of a missing passenger cries at a vigil in Beijing on April 8, 2014. Australian Defense Force divers scan the water for debris in the southern Indian Ocean on April 7, 2014. A towed pinger locator is readied to be deployed off the deck of the Australian vessel Ocean Shield on April 7, 2014.
From what I've learned in a similar search, I believe the DPO is the abbreviation for Discontinued Post Office. The AE definitely designates Army Europe and the 09498 part of your query would be the APO zip code for a former military installation.
The luteal phase, also referred to as 'days past ovulation' or 'DPO', is the part of the cycle that starts at ovulation and ends the day before your next period. It usually lasts about 14 days and does not vary by more than a day in each person.