"GBM Closeout" (APP/LPA)

ITOS Mnemonic:  LPAGBMCLOSEOUT

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

The GBM shall provide exactly one of these telecommands for each burst trigger. It will be the LAST message sent about any particular burst.

Layout:  (hide detail; help)

GBM Closeout (GbmClose) 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=0x660:3
002	SF=3		Sequence Count
004	Packet Length=11
006	0	Function Code=3
008	TRGID_TSEC tsec
00C	TRGID_USEC usec
00E	LR_SEQ seq								LR_VER ver
010	Packet Checksum

GbmClose (pkt)
|  TRGID_TSEC tsec (fld)
|  TRGID_USEC usec (fld)
|  LR_SEQ seq (fld)
|  LR_VER ver (fld)

typedef struct _LPA_GbmClose_Pkt {

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

    /* Command payload */
    LPA_GbmClose_Prm     pay;

} LPA_GbmClose_Pkt;

Fields:

LR_SEQ (index)

Attribute(s):  

Brief:  "GRB LAT Record Sequence Number"

Instance(s):  seq

Record number (1 relative) with respect to the specified TRIGGER ID burst.

LR_VER (index)

Attribute(s):  

Brief:  "GRB Record Type Version"

Instance(s):  ver

Record Type Version Number

TRGID_TSEC (index)

Attribute(s):  

Brief:  "GRB Trigger ID"

Instance(s):  tsec

Tenths of a second

TRGID_USEC (index)

Attribute(s):  

Brief:  "GBM Trigger ID"

Instance(s):  usec

Microseconds.