See list belowAUG 29 196767-FM-T-74FM/Deputy ChiefManeuver sensitivity coefficients
1. It's been almost a year since I sent out a note on this subject, and since it keeps coming up I thought it might not hurt to remind you of the following sensitivity coefficients:
Maneuvers Earth Moon
Horizontal .56 nm/fps .72 nm/fps
Radial .14 nm/fps .18 nm/fps
These numbers describe the change in altitude (in nautical miles) as a result of making a horizontal or radial maneuver (in feet per second). The change in altitude, of course, occurs 180° of orbital travel after a horizontal maneuver, and 90° after a radial maneuver. Incidentally, it is no coincidence that the values for the radial maneuver are exact- ly ¼ those for the horizontal. This is a true, mathematically defined relationship. I point that out because it might be easier to just remember values for horizontal maneuvers and the factor of 4 to get the others.
2. Aside from mission planning considerations such as football rendezvous, etc., the radial maneuver sensitivity is of interest from another standpoint. Specifically, now that we have guidance systems with rather poor pointing accuracy under certain conditions we are likely to pick up an unwanted velocity increment in an up or down direction, which change the orbit – perhaps dangerously, certainly undesirably. These coefficients will allow you to estimate the effect of these dispersions on the trajectory.