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The azimuth alignments are as follows:
Launch Azimuth 90.0 degrees east of north
Flight Azimuth 72.034 degrees east of north
ST-124M Platform 72.035 degrees east of north
Azimuth
The azimuth alignments are as follows:
Launch Azimuth 90.0 degrees east of north
Flight Azimuth 91.503 degrees east of north
ST- 124M Platorm 91.504 degrees east of north
Azimuth
4.1 Post-TLI Sequence of Events
Following the termination of the TLI burn at 02:55:43 g.e.t., the burnout attitude is fixed inertially for 20 seconds.
At the end of thit time period, the local horizontal mode is again established by the S-IVB attitude control system for MSFN post-TLI checkout.
Fifteen minutes after TLI cutoff, the S-IVB orients to the S-IVB/CSM separation attitude.
Primary considerations involved in defining the separation attitude are communications, gimbal lock, and lighting on the forward end of the S-IVB.
The lighting constraint is to evaluate illumination of the LM docking tunnel for later missions having the LM onboard.
The orientation thus consists of a pitch maneuver to point the SLA generally towards the sun and a roll maneuver for communications.
The separation attitude is held inertially fixed until a separation distance of about 50 feet is achieved between the S-IVB and CSM.
The CSM is then pitched through 180 degrees to face the S-IVB.
This attitude provides visual observation of the S-IVB and MSFN communications.
A roll maneuver of minus 60 degrees is executed from this attitude for the proper docking alignment.
The CSM station-keeps at this attitude for approximately 13 minutes and then orients to the evasive maneuver attitude.
This attitude consists of the CSM X-axis being aligned along the negative position vector.
The CSM minus Z-axis is oriented in the direction of motion and in the trajectory plane.
The purpose of the orientation is to provide visual monitoring of the S-IVB venting and a nominal thrusting alignment for an RCS burn to avoid S-IVB recontact.
The evasive maneuver attitude is held inertially fixed until 05:07:43 g.e.t., at which time the CSM will be positioned to observe the S-IVB slingshot trajectory.
The CSM attitude for this event aligns the CSM X-axis 18 degrees below the negative velocity vector.
Communications coverage is optimized by minimizing the angle between the negative position vector and the S-band antenna boom.
The CSM monitoring attitude is fixed inertially for approximately one hour.
The post-TLI sequence of events is illustrated in Figure 2.
Numerical data for the post-TLI sequence were obtained from Reference 2.