Air taxi first officer reported receiving a low altitude alert from ATC shortly after departure.

Attributes
ACN	1615749
Time
Date	201902
Local Time Of Day	1801-2400
Place
Locale Reference	VNY.Airport
State Reference	CA
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	SID WLKKR3
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

Assigned the WLKKR3 departure; cvs [climb via SID] except maintain 4;000. We were doing the noise abatement takeoff; and leveled at 1;700 for the restriction. While in the turn to heading 210; socal assigned us climb to 6;000. PF (pilot flying) initiated a climb up; however socal issued a low altitude alert and suggested we increase the rate of climb. PF increased the rate of climb up to 6;000. Rest of the flight uneventful. Start a more aggressive rate of climb to avoid low altitude alert on this departure.

Original NASA ASRS Text

Title: Air taxi First Officer reported receiving a low altitude alert from ATC shortly after departure.

Narrative: Assigned the WLKKR3 Departure; CVS [climb via SID] except maintain 4;000. We were doing the noise abatement takeoff; and leveled at 1;700 for the restriction. While in the turn to heading 210; SOCAL assigned us climb to 6;000. PF (Pilot Flying) initiated a climb up; however SOCAL issued a low altitude alert and suggested we increase the rate of climb. PF increased the rate of climb up to 6;000. Rest of the flight uneventful. Start a more aggressive rate of climb to avoid low altitude alert on this departure.

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.