Enroute controller described a loss of separation event when relying on another controllers' vectors...

Attributes
ACN	970177
Time
Date	201109
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

A B737 stopped at FL350 for traffic handed off to sector X. I called to point out the B737 to sector X; sector X started flashing an A320 to me at FL350. Sector X said the A320 was 20 left to go behind the B737 and approved point out. I climbed the B737 to FL380; aircraft took a while to start climb. Sector X switched the A320 to me in my airspace; I then realized the 20 degrees left turn was not working and turned the A320 additional 15 degrees left; then told the B737 again to climb to FL380 and turn 20 left and report out of FL360. It appears separation was lost at about 4 miles and 500 ft. Don't trust the controller will put an aircraft on a heading that will work.

Original NASA ASRS Text

Title: Enroute Controller described a loss of separation event when relying on another controllers' vectors to achieve diverging courses which did not provide adequate spacing.

Narrative: A B737 stopped at FL350 for traffic handed off to Sector X. I called to point out the B737 to Sector X; Sector X started flashing an A320 to me at FL350. Sector X said the A320 was 20 left to go behind the B737 and approved point out. I climbed the B737 to FL380; aircraft took a while to start climb. Sector X switched the A320 to me in my airspace; I then realized the 20 degrees left turn was not working and turned the A320 additional 15 degrees left; then told the B737 again to climb to FL380 and turn 20 left and report out of FL360. It appears separation was lost at about 4 miles and 500 FT. Don't trust the controller will put an aircraft on a heading that will work.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Enroute controller described a loss of separation event when relying on another controllers' vectors to achieve diverging courses which did not provide adequate spacing.