TriPoint VertexRSI 7200, Руководство по эксплуатации и обслуживанию

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7 2 0 0 OPERA TIO N
5 - 2 8
5.8.2.6.3.3 I nt e l s a t 11-E l e m e nt ( I ESS-412 ) T r ack i ng Mod e P a r a m e t e r s
Tab l e 5-1 0 descr i bes the I nt e l s a t 11- e l e m e nt parameters.
TAB L E 5-10 I NTE L SAT 11-E L EMENT P A R AMETE R S
P A R AMETE R DESC R I P T I ON
Year Year port i on of the epoch t i me on w h i ch the ephemer i s i s based; va l ue
must be a four-d i g i t number (1 9 9 0; 2 0 0 1).
Month Month port i on of the epoch t i me on w h i ch the ephemer i s i s based; i nput
i s a t w o-d i g i t i nteger va l ue (0 1 - 1 2).
Day Day port i on of the epoch t i me on w h i ch the ephemer i s i s based; i nput i s
a t w o-d i g i t i nteger va l ue (0 1 - 3 1).
Hour Hour port i on of the epoch t i me on w h i ch the ephemer i s i s based; i nput i s
a t w o-d i g i t i nteger va l ue (0 0 -2 3).
M i nute M i nute port i on of the epoch t i me on w h i ch the ephemer i s i s based; i nput
i s a t w o-d i g i t i nteger va l ue (0 0 - 5 9).
Second Second port i on of the epoch t i me on w h i ch the ephemer i s i s based; i nput
i s a t w o-d i g i t i nteger va l ue (0 0 - 5 9).
LM 0 [deg. E] Mean l ong i tude (degrees east of Green w i ch). Labe l ed LM 0 on the 1 1-
parameter ephemer i s from Inte l sat.
LM 1 [deg/day] Mean l ong i tude dr i ft rate (degrees east per day).
LM 2 [deg/day/day] Mean l ong i tude dr i ft acce l erat i on (degrees east per day).
LO N C [deg. E] A mp li tude of the cos i ne component of the l ong i tude osc ill at i on (degrees
east).
LO N C 1 [deg/day] Rate of change i n LO N C (degrees east per day).
LO NS [deg. E] A mp li tude of the s i ne component of the l ong i tude osc ill at i on (degrees
east).
LO NS1 [deg/day] Rate of change i n LO NS (degrees east per day).
LA T C [deg. N] A mp li tude of the cos i ne component of the l at i tude osc ill at i on (degrees
north).
LA T C 1 [deg/day] Rate of change i n LA T C (degrees north per day).
LA TS [deg. N] A mp li tude of the s i ne component of the l at i tude osc ill at i on (degrees
north).
LA TS1 [deg/day] Rate of change i n LA TS (degrees north per day).
Long i tude at 1 7 0
hours [deg. E]
Sate lli te l ong i tude at epoch p l us 1 7 0 hours (degrees east).
Lat i tude at 1 7 0 hours
[deg. N]
Sate lli te l at i tude at epoch p l us 1 7 0 hours (degrees north).
Po l ar i zat i on ang l e
[deg]
POL ang l e used w i th Inte l sat track i ng i f POL i s enab l ed. If the A C U does
not contro l POL, th i s va l ue i s i rre l evant.
B i as ang l es [deg] A ng l es added to the l ook ang l es to determ i ne the target pos i t i on. These
ex i st because the l ook ang l es can on l y be ed i ted at Superv i sor l eve l , but
the b i as ang l es can be ed i ted at Operator l eve l , a ll o w i ng per i od i c
repeak i ng of the target w i thout l os i ng the base pos i t i on.
Po i nt i ng update t i me
[ms]
Contro l s the frequency at w h i ch ne w l ook ang l es are ca l cu l ated from the
Inte l sat parameters. The nom i na l va l ue i s 1 0 0 0 m illi seconds (ms) (1
second). The va l ue can be i ncreased to l o w er the w ork l oad on the CPU.