misc tweaks

library/lib_ascent.ks

@@ -118,7 +118,7 @@ local function CreateCircularizationNode{
 
 	wait until altitude > 80000.
 	local burnDv is CalculateCircularizationDV(tgt, orbit:semimajoraxis).
-	set circNode to Node(time:seconds + eta:apoapsis, 0, 0, burnDv).
+	local circNode is Node(time:seconds + eta:apoapsis, 0, 0, burnDv).
 	add circNode.
 	wait 0.01.
 	lock steering to circNode:burnvector.
@@ -126,9 +126,11 @@ local function CreateCircularizationNode{
 	wait until circNode:eta <= burnDuration /2.
 	lock throttle to 1.
 	wait until nextNode:deltav:mag <= 10.
-	lock throttle  to 0.5.
+	lock throttle  to 0.25.
 	wait until NEXTNODE:deltav:mag <= 1.
+	unlock steering.
 	remove nextNode.
+	wait 0.01.
 	lock throttle to 0.
 	wait until throttle = 0.
 }

library/lib_vessel_utils.ks

@@ -155,7 +155,6 @@ declare function CalculateTimeToImpact{
 	parameter tgtAltitude is 0.0.
 
 	if gravity <= 0 or curAltitude <= 0{
-		print "[warn]: invalid altitude or gravity.".
 		return 0.0.
 	}