"LAT to SC requesting repoint" (DAQ/ISIS)

ITOS Mnemonic:  AUTOREPOINT

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

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LAT to SC requesting repoint (AutoRepoint) Telecommand Packet Format
0x	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
000	Version=0			T=1	SH	APID=0x640:2
002	SF=3		Sequence Count
004	Packet Length=256
006	0	Function Code=2
008	BUINT sec
00C	BUINT subSec
010	BUINT tranID
014	BUINT dwellTm
018	DOUBLE ra
020	DOUBLE dec
028	Packet Checksum

AutoRepoint (pkt)
|  BUINT sec (bf)
|  |  UINT uint (0-31)
|  BUINT subSec (same bf)
|  BUINT tranID (same bf)
|  BUINT dwellTm (same bf)
|  DOUBLE ra (fld) ... dec (fld)

typedef struct _ISIS_AutoRepoint_Pkt {

    /* CCSDS header */
    char                 hdr[8];

    /* Command payload */
    ISIS_AutoRepoint_Prm pay;

} ISIS_AutoRepoint_Pkt;

Fields:

BUINT (index)

Attribute(s):  

Brief:  "Unsigned integer work around for ITOS"

Instance(s):  dwellTm, sec, subSec, tranID

DOUBLE (index)

Attribute(s):  

Brief:  "Floating point, 64 bit wide"

Instance(s):  dec, ra