TECHNICAL DESCRIPTION

 

INTRAC-305

 

IESS Minutes Interval

range: 0 to 59

 

IESS Days Validity

range: 0 to 28

 

IESS Sat LM0

range: 0 to 360 deg

 

IESS Sat LM1

range: -9.99 to 9.99 deg/day

 

IESS Sat LM2

range: -9.99 to 9.99 deg/deg/day

 

IESS Sat LONC

range: -9.99 to 9.99 deg

 

IESS Sat LONC1

range: -9.99 to 9.99 deg/day

 

IESS Sat LONS

range: -9.99 to 9.99 deg

 

IESS Sat LONS1

range: -9.99 to 9.99 deg/day

 

IESS Sat LATC

range: -9.99 to 9.99 deg

 

IESS Sat LATC1

range: -9.99 to 9.99 deg/day

 

IESS Sat LATS

range: -9.99 to 9.99 deg

 

IESS Sat LATS1

range: -9.99 to 9.99 deg/day

 

IESS Sat LONG170

range: 0 to 360 deg

 

IESS Sat LAT170

range -9.99 to 9.99 deg/day

 

Also required to be set are the IESS Az & El offsets which are

 

input on the Function - System Setup - Station Coordinates

 

menu screen.

 

 

The IESS Epoch defines the time instant at the start of the

 

period of the IESS data. The IESS Minutes Interval defines the

 

period in minutes between pointing updates in Program Track

 

mode. The IESS Days Validity (normally 7) defines the period

 

of validity of the data. The INTRAC will accept and use the

 

data two days either side of the validity period.

 

The parameters IESS Sat (LM0, LM1, LM2, LONC, LONC1,

 

LONS, LONS1, LATC, LATC1, LATS, LATS1) are the IESS-

 

412 11-element ephemeris. The parameters IESS Sat

 

(LONG170, LAT170) are the IESS-412 11-element ephemeris

 

170hr parity check.

 

Note

The data ranges shown above as +/- 9.99 actually accept more

 

than two places of decimals.

Note

The LMO value is given in the range -180°to +180°. The

 

INTRAC-305 cannot accept negative values for this field from

the front panel. (It can accept them from the RCM-4). It is therefore necessary to add 360° to the supplied value if it is

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INTRAC-305 MANUAL - Issue 3.2

© 2011 Advantech Wireless

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Advantech INTRAC-305 user manual Than two places of decimals, LMO value is given in the range -180to +180