MISSION PLAN - PDS Small Bodies Node
MISSION PLAN - PDS Small Bodies Node
MISSION PLAN - PDS Small Bodies Node
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180<br />
150<br />
Cone and Clock Angle of Earth<br />
Cone Angle Reference: S/C x-axis<br />
Clock Angle Reference: S/C z-axis<br />
Assume Earth pointed Attitude<br />
z-axis to Earth<br />
y-axis ⊥ to SC orbit plane (down)<br />
x-axis SC orbit circumferential<br />
180<br />
150<br />
120<br />
90<br />
95<br />
Cone and Clock Angle of Earth<br />
(Near & Close Encounter)<br />
Cone Angle Reference: S/C x-axis<br />
Clock Angle Reference: S/C z-axis<br />
Assume Closest Enc Attitude<br />
z-axis to Earth<br />
x-axis // to Dust stream<br />
y-axis ⊥ x & z<br />
Cone/Earth<br />
Clock/Earth<br />
0.3<br />
0.2<br />
120<br />
60<br />
0.1<br />
Cone Angle (deg)<br />
90<br />
60<br />
Cone/Earth<br />
Clock/Earth<br />
30<br />
0<br />
-30<br />
-60<br />
Clock Angle (deg)<br />
Cone Angle (deg)<br />
90<br />
0.0<br />
-0.1<br />
Clock Angle (deg)<br />
-90<br />
30<br />
-120<br />
-0.2<br />
-150<br />
0<br />
-100<br />
-70<br />
-40<br />
-10<br />
Time (days from Encounter)<br />
20<br />
-180<br />
50<br />
85<br />
-72<br />
-60<br />
-48<br />
-36 -24 -12 0 12 24<br />
Time (hrs from Closest Encounter)<br />
36<br />
48<br />
60<br />
-0.3<br />
72<br />
9.4 Wild-2 Encounter Data Set (cont)<br />
105
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