Fundamental TechnologiesVoyager LECP Pages |
ITEM | DESCRIPTION | |
---|---|---|
1 | MODE | Contains the telemetry mode |
2 | SCID | Spacecraft Identification - identifies the spacecraft
transmitting this data Spacecraft Event Time - contains the Greenwich Mean Time of the readout of the first bit of the first spacecraft minor frame used in this LECP major frame |
3 | SCETH | Spacecraft Event Time, Hour - number of hours since the beginning of the current year plus 24. For the one hour interval Jan 1, 0000-0059 UT, SCET=24. The Day of Year may be computed using DAY=(SCETH/24). |
4 | SCETS | Spacecraft Event Time Sec - is the number of seconds since the beginning of the current hour |
5 | SCETMS | Spacecraft Event Time, Milliseconds - is the number of milliseconds since the beginning of the current second |
6 | SCETY | Spacecraft Event Time, Year - contains the last two digits of the current year (i.e., 77, 78) |
7 | NSMR | Number of Supplemental Records - specifies the number of supplemental records that will follow the current record. |
8 | SCETF | Spacecraft Event Time Flag - indicates that the spacecraft clock has been corrected in some manner in the J.P.L. processing. Bit 0 indicates correction to the line counter (0=none, 1=corrected), bit 1 the MOD60 counter and bit 2 the MOD216counter. |
9 | MOD216 | Mod216 Spacecraft Clock Word - contains the spacecraft Mod216 word for the first minor frame of the current record. This word is incremented every 48 minutes on the overflow of the Mod60 counter. |
10 | MOD60 | Mod60 Spacecraft Clock Word - contains the spacecraft Mod60 word for the first minor frame of the current record. It has a range of 0 to 59 and is incremented every 48 seconds at the overflow of the line counter. |
11 | LC | Spacecraft Line Counter - contains the line count for the first minor frame in the current record. LC ranges from 1 to 80010 and is incremented every 0.06 seconds. |
12 | S1 | LECP Status Word 1 |
13 | S2 | LECP Status Word 2 |
14 | S3 | LECP Status Word 3 |
15 | S4 | LECP Status Word 4 |
16 | S5 | LECP Status Word 5 |
17 | S6 | LECP Status Word 6 |
18 | MP | LECP Motor Position - contains the motor position at the end of the current record. Bit 0 (LSB) is set if the motor is centered, bits 1-3 contain the motor position (0=sector 1, ..., 7=sector 8). If the motor position is unknown MP=-1. |
19 | NMF | Number of Minor Frames - contains the number of minor frames used to make up the current LECP record. |
20 | LATEMP | LECP Log. Amp. Temperature - contains the log. amp. temp (Co) x 128. If the temperature is unknown LATEMP = -9999 |
21 | TTEMP | LECP Telescope Temperature - contains the telescope temperature (Co) x 128. If the temperature is unknown TTEMP= -9999. |
22 | NPHA | Number of PHA Readouts - contains the number of PHA readouts in the current major frame. |
23 | NG | Number Groups - indicates the number of rate groups included in the current major frame. |
24 | MRT/MPT/SEDR | Master Rate Tape/Master Pulse Tape - indicates whether this record is a
master rate or master pulse record. 01 = Master Rate Record, 02 = Master Pulse Record, 04 = SEDR, 10 = ENG, 11 = CAL |
25 | VN | Version number - indicates the version of S1P used to process the current data. |
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Last modified 4/8/05, Tizby Hunt-Ward
tizby@ftecs.com