ZID controller experienced operational error at FL200 when climb rate was misjudged.

Attributes
ACN	635908
Time
Date	200411
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : huf.airport
State Reference	IN
Altitude	msl bound lower : 20000 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid.artcc tower : hnl.tower
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zid.artcc
Operator	general aviation : corporate
Make Model Name	King Air C90 E90
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 14 controller time certified in position1 : 11
ASRS Report	635908
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	atc equipment : conflict alert other controllera
Resolutory Action	controller : issued alert
Consequence	faa : investigated
Miss Distance	horizontal : 24000 vertical : 300
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft X swbound FL200 took handoff from R17 up to FL230. Aircraft X advised he could maintain 2500 FPM in the climb, told to report leaving FL210. A departure went off before I received the report.

Original NASA ASRS Text

Title: ZID CTLR EXPERIENCED OPERROR AT FL200 WHEN CLB RATE WAS MISJUDGED.

Narrative: ACFT X SWBOUND FL200 TOOK HDOF FROM R17 UP TO FL230. ACFT X ADVISED HE COULD MAINTAIN 2500 FPM IN THE CLB, TOLD TO RPT LEAVING FL210. A DEP WENT OFF BEFORE I RECEIVED THE RPT.

Data retrieved from NASA's ASRS site as of July 2007 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.