Flight Crew Air Transport Pilot (ATP)
Flight Crew Type 2551
Situational Awareness
Deviation - Altitude Undershoot; Deviation - Altitude Crossing Restriction Not Met; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued Advisory / Alert; Flight Crew Became Reoriented
Human Factors; Environment - Non Weather Related; Aircraft
Approaching KEGGS on the ORCKA2 RNAV Departure; while in VNAV; ATC notified us that we were not meeting the climb restriction. Aircraft was in VNAV with ECON climb selected and accelerating prior to disengaging the auto pilot. It should have been climbing at a slower speed rather than the ECON climb speed of 320 KIAS to achieve the required climb angle. The speed of 320 was priority over the altitude. I believe a tailwind also compounded the problem. We were about 12000 MSL when ATC notified us that we would miss the 13000 restriction. It is unknown to me exactly how far off we would be at KEGGS; but I knew we wouldn't make it and realized my mistake. Even still I disconnected the autopilot and began to trade excess airspeed for altitude to attempt to make the restriction but then immediately encountered wake turbulence from the B777 ahead of us. We missed the altitude restriction mostly because of VNAV leveling us off to accelerate. But to make matters worse; when I disconnected the autopilot and got into the wake of the preceding aircraft I couldn't be as aggressive to correct as would have been needed. Once out of the wake; I put the aircraft into a 280 KIAS climb and got back onto the profile; easily making the next restriction of 15000 or above at COOPP. ATC never said anything else to us about the event. I should have noticed sooner; corrected the flight path and asked ATC for relief from the restriction.
B737 First Officer reported missing a crossing restriction on climbout from LAX citing VNAV performance and a wake turbulence encounter as contributing.