Be-30 captain reported ATC issued a low altitude on approach to hou.

Attributes
ACN	1625401
Time
Date	201903
Local Time Of Day	1801-2400
Place
Locale Reference	HOU.Airport
State Reference	TX
Environment
Flight Conditions	IMC
Aircraft 1
Make Model Name	Super King Air 300
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 40 Flight Crew Total 9100 Flight Crew Type 40
Events
Anomaly	Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Inflight Event / Encounter CFTT / CFIT

Narrative:

I was inbound on the ILS 13R approach descending from 3;000 feet inside of jabbs intersection and was cleared to land on 13R. I misinterpreted my glide slope indication and believed that I was above the glide slope; but in fact was below it because I had not passed royce intersection yet (FAF). I descended below 2;000 feet early and received a low altitude alert from hobby tower. I immediately climbed back up and intercepted the glide path and continued inbound to a normal landing.I have recently transitioned into this aircraft and avionics system. It was my confusion in reading the glideslope indicator and loss of situational awareness that led me to believe I was high. More familiarity; vigilance and a better approach briefing to reinforce my situational awareness will prevent this from happening to me again. Hobby tower assured me that there was no problem and I thanked them for their help.

Original NASA ASRS Text

Title: BE-30 Captain reported ATC issued a low altitude on approach to HOU.

Narrative: I was inbound on the ILS 13R approach descending from 3;000 feet inside of JABBS Intersection and was cleared to land on 13R. I misinterpreted my glide slope indication and believed that I was above the glide slope; but in fact was below it because I had not passed ROYCE Intersection yet (FAF). I descended below 2;000 feet early and received a low altitude alert from Hobby Tower. I immediately climbed back up and intercepted the glide path and continued inbound to a normal landing.I have recently transitioned into this aircraft and avionics system. It was my confusion in reading the glideslope indicator and loss of situational awareness that led me to believe I was high. More familiarity; vigilance and a better approach briefing to reinforce my situational awareness will prevent this from happening to me again. Hobby Tower assured me that there was no problem and I thanked them for their help.

Data retrieved from NASA's ASRS site 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.