Fundamental TechnologiesVoyager LECP Pages |
Record Format for Far Encounter
List of Header Block Contents
ITEM |
INDEX |
NAME |
TYPE |
DESCRIPTION |
1 |
1 |
SCID |
I*1 |
Spacecraft Identification; 1=Voyager 1; 0=Voyager 2 |
2 |
|
MODE |
I*1 |
Spacecraft telemetry mode 01(H)=CR2; 02(H)=CR3; 03(H)=CR4 04(H)=CR5; 05(H)=CR6; 07(H)=CR1 0A(H)=FE; 08(H)=NE; 18(H) or 1D(H) CR5A |
Spacecraft Event Time-contains the Greenwich Mean of the first bit of the first spacecraft minor frame used in this LECP major frame |
||||
3 |
2 |
SCETH |
I*2 |
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 |
3 |
SCETS |
I*2 |
Spacecraft Event Time (sec.) number of seconds since the beginning of the current hour |
5 |
4 |
SCETMS |
I*2 |
Spacecraft Event Time, (millisec) no. of milliseconds since the beginning of the current second. |
6 |
5 |
SCETY |
I*2 |
Spacecraft Event Time, Year-contains the last two digits of the current year (i.e., 77, 78) |
7 |
6 |
G18ID |
I*1 |
Group 18 Identification-contains the number of the LECP data group being readout at the end of the current LECP major frame |
8 |
7 |
SCETF |
I*1 |
Spacecraft Event Time Flag-indicates that the spacecraft clock has been corrected in some manner in the JPL processing. Bit 0 indicates correction to the line count (0=none, 1=corrected) bit 1 the MOD60 counter and bit 2 the MOD2**16 counter. |
9 |
7 |
MOD216 |
I*2 |
Mod2**16 Spacecraft Clock Word-contains the spacecraft Mod2**16 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 |
8 |
M60 |
I*2 |
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 |
9 |
LC |
I*2 |
Spacecraft Line Counter-contains the line count for the first minor frame in the current record LC ranges from 1 to 800(D) and is incremented every 0.06 seconds |
12 |
10 |
S1 |
I*2 |
LECP Status Word 1, 10 bits, right justified |
13 |
11 |
S2 |
I*2 |
LECP Status Word 2, 10 bits, right justified |
14 |
12 |
S3 |
I*2 |
LECP Status Word 3, 10 bits, right justified |
15 |
13 |
S4 |
I*2 |
LECP Status Word 4, 10 bits, right justified |
16 |
14 |
S5 |
I*2 |
LECP Status Word 5, 10 bits, right Justified |
17 |
15 |
S6 |
I*2 |
LECP Status Word 6, 10 bits, right justified |
18 |
16 |
MP |
I*2 |
LECP Motor Position-contains the motor position at the end of the current record. Bit 0 is set if the status word indicates motor centering, it is zero otherwise. Bits 1-3 contain the motor position with 0-7 corresponding to sector 1 thru 8 respectively. MP=-1 if motor position is unknown |
19 |
17 |
NMS |
I*2 |
Number of Motor Steps-indicates the number of motor steps within the current LECP Major Frame. Turn arounds in Sectors 8 and 1 or 2 are considered to be two steps. If = -1, datun is unknown. |
20 |
18 |
LATEMP |
I*2 |
LECP Log. Amp. Temperature-contains the log. amp. temp. (degrees C) x 128. LATEMP= -9999 if the temperature is unknown |
21 |
19 |
TTEMP |
I*2 |
LECP Telescope Temperature-contains the telescope temperature (degrees C) x 128. TTEMP= -9999 if the temperature is unknown |
22 |
20 |
BAI |
I*2 |
Basic Accumulation Interval-contains the number of milliseconds of accumulation times for the group 1 and 2 logics (Exception—for CR5A units are 0,01 sec.!!) |
23 |
21 |
NG |
I*2 |
Number of Groups-indicates the number of rate groups included in the current major frame |
24 |
22 |
MRT/MPT |
I*2 |
01=Master Rate Record, 02=Master Pulse Record, 4 SEDR, 10 ENG, 11 Cal |
25 |
23 |
VN |
I*2 |
Version Number-indicates the version of S1P used to process the current data |
26 |
24 |
LEPT/LEMPA |
I*2 |
Indicates data type in record: -1=Don't know; 0=LEPT; 1=LEMPA "Normal" NE Logics in GS3 |
27 |
25 |
RED A/B |
I*2 |
Redundancy A or B logic flag, -1 Unknown, 0 = A; 1 = B |
28 |
26 |
PROC. STAT |
I*2 |
Check SW4 for 50/50. If 50/50 then Item 26 0=LEPT Norm F.E. 1=LEMPA |
29 |
27 |
STEPPING RATE |
I*2 |
Motor period in seconds: -1 = Unknown; 0 = not decoded; 9000 = encounter stow (V2 Jupiter) 10000 Stowed or commanded to position; otherwise one of 5,6,24,48,192,360 or 384 sec. |
30 |
28 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
31 |
30 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
32 |
31 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
33 |
32 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
34 |
33 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
35 |
34 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
36 |
35 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
37 |
36 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
38 |
37 |
|
I*2 |
Status Word 5 (Near Encounter only) otherwise unused. |
39 |
38 |
|
I*2 |
Spare |
Far Encounter Data Block Contents
Item |
Array |
Index |
Logic |
#Avg |
Type |
Word |
40 |
R60(60,4) |
1 |
PL01 |
1 |
R*4 |
39-158 |
|
|
2 |
PL02 |
1 |
R*4 |
159-278 |
|
|
3 |
PL03 |
1 |
R*4 |
279-398 |
|
|
4 |
EG06 |
1 |
R*4 |
399-518 |
41 |
R30(30,16) |
1 |
EB1 |
1 |
R*4 |
519-578 |
|
|
2 |
EB1alt |
1 |
R*4 |
579-638 |
|
|
3 |
EB2 |
1 |
R*4 |
639-698 |
|
|
4 |
EB2alt |
1 |
R*4 |
699-758 |
|
|
5 |
EB3 |
1 |
R*4 |
759-818 |
|
|
6 |
EB3alt |
1 |
R*4 |
819-978 |
|
|
7 |
EB4 |
1 |
R*4 |
979-738 |
|
|
8 |
EB4alt |
1 |
R*4 |
939-998 |
|
|
9 |
EG06 |
2 |
R*4 |
999-1058 |
|
|
10 |
PL01 |
2 |
R*4 |
1059-1118 |
|
|
11 |
PL02 |
2 |
R*4 |
1119-1178 |
|
|
12 |
PL03 |
2 |
R*4 |
1179-1238 |
|
|
13 |
32 |
1 |
R*4 |
1239-1298 |
|
|
14 |
31 |
1 |
R*4 |
1299-1358 |
|
|
15 |
39 |
1 |
R*4 |
1359-1418 |
|
|
16 |
33 |
1 |
R*4 |
1419-1478 |
42 |
R20(20,16) |
1 |
PL01 |
3 |
R*4 |
1479-1518 |
|
|
2 |
PL02 |
3 |
R*4 |
1519-1558 |
|
|
3 |
PL03 |
3 |
R*4 |
1559-1598 |
|
|
4 |
PL04 |
1 |
R*4 |
1599-1638 |
|
|
5 |
PL08 |
1 |
R*4 |
1639-1778 |
|
|
6 |
1 |
1 |
R*4 |
1679-1718 |
|
|
7 |
10 |
1 |
R*4 |
1759-1798 |
|
|
8 |
16 |
1 |
R*4 |
1759-1798 |
|
|
9 |
3 |
1 |
R*4 |
1799-1838 |
|
|
10 |
EG06 |
3 |
R*4 |
1839-1878 |
|
|
11 |
EG07 |
1 |
R*4 |
1879-1818 |
|
|
12 |
EG08 |
1 |
R*4 |
1919-1958 |
|
|
13 |
EG09 |
1 |
R*4 |
1959-1998 |
|
|
14 |
44 |
1 |
R*4 |
1999-2038 |
|
|
15 |
EB05-EB'5 |
1 |
R*4 |
2039-2078 |
|
|
16 |
42 |
1 |
R*4 |
2079-2118 |
43 |
R5(5,31) |
1 |
PL01 |
12 |
R*4 |
2119-2128 |
|
|
2 |
PL02 |
12 |
R*4 |
2129-2138 |
|
|
3 |
PL03 |
12 |
R*4 |
2139-2148 |
|
|
4 |
PL04 |
4 |
R*4 |
2149-2158 |
|
|
5 |
PL05 |
1 |
R*4 |
2159-2168 |
|
|
6 |
PL06 |
1 |
R*4 |
2169-2178 |
|
|
7 |
PL07 |
1 |
R*4 |
2179-2188 |
|
|
8 |
PL08 |
4 |
R*4 |
2189-2198 |
|
|
9 |
32 |
6 |
R*4 |
2199-2208 |
|
|
10 |
1 |
4 |
R*4 |
2209-2218 |
|
|
11 |
10 |
4 |
R*4 |
2219-2228 |
|
|
12 |
11 |
1 |
R*4 |
2229-2238 |
|
|
13 |
16 |
4 |
R*4 |
2239-2248 |
|
|
14 |
23 |
1 |
R*4 |
2249-2258 |
|
|
15 |
27 |
1 |
R*4 |
2259-2268 |
|
|
16 |
31 |
6 |
R*4 |
2269-2278 |
|
|
17 |
39 |
6 |
R*4 |
2279-2288 |
|
|
18 |
33 |
6 |
R*4 |
2289-2298 |
|
|
19 |
D1F1 |
1 |
R*4 |
2299-2308 |
|
|
20 |
D1F2 |
1 |
R*4 |
2309-2318 |
|
|
21 |
3 |
4 |
R*4 |
2319-2328 |
|
|
22 |
4 |
1 |
R*4 |
2329-2338 |
|
|
23 |
12 |
1 |
R*4 |
2339-2348 |
|
|
24 |
13 |
1 |
R*4 |
2349-2358 |
|
|
25 |
17 |
1 |
R*4 |
2359-2368 |
|
|
26 |
24 |
1 |
R*4 |
2369-2378 |
|
|
27 |
28 |
1 |
R*4 |
2379-2388 |
|
|
28 |
38 |
1 |
R*4 |
2389-2398 |
|
|
29 |
35 |
1 |
R*4 |
2399-2308 |
|
|
30 |
41 |
1 |
R*4 |
2409-2418 |
|
|
31 |
45 |
1 |
R*4 |
2419-2428 |
44 |
R2(2,12) |
1 |
34 |
1 |
R*4 |
2429-2432 |
|
|
2 |
5 |
1 |
R*4 |
2433-2436 |
|
|
3 |
14 |
1 |
R*4 |
2439-2440 |
|
|
4 |
18 |
1 |
R*4 |
2441-2444 |
|
|
5 |
6 |
1 |
R*4 |
2445-2448 |
|
|
6 |
7 |
1 |
R*4 |
2449-2452 |
|
|
7 |
19 |
1 |
R*4 |
2453-2456 |
|
|
8 |
25 |
1 |
R*4 |
2457-2460 |
|
|
9 |
36 |
1 |
R*4 |
2461-2464 |
|
|
10 |
8 |
1 |
R*4 |
2465-2468 |
|
|
11 |
9 |
1 |
R*4 |
2469-2472 |
|
|
12 |
43 |
1 |
R*4 |
2473-2476 |
45 |
R1(75) |
1 |
PL01 |
60 |
R*4 |
2477 |
|
|
2 |
PL02 |
60 |
R*4 |
2479 |
|
|
3 |
PL03 |
60 |
R*4 |
2481 |
|
|
4 |
PL04 |
20 |
R*4 |
2483 |
|
|
5 |
PL05 |
5 |
R*4 |
2485 |
|
|
6 |
PL06 |
5 |
R*4 |
2487 |
|
|
7 |
PL07 |
5 |
R*4 |
2489 |
|
|
8 |
PL08 |
20 |
R*4 |
2491 |
|
|
9 |
32 |
30 |
R*4 |
2493 |
|
|
10 |
1 |
20 |
R*4 |
2495 |
|
|
11 |
10 |
20 |
R*4 |
2497 |
|
|
12 |
11 |
5 |
R*4 |
2499 |
|
|
13 |
16 |
20 |
R*4 |
2501 |
|
|
14 |
23 |
5 |
R*4 |
2503 |
|
|
15 |
27 |
5 |
R*4 |
2505 |
|
|
16 |
31 |
30 |
R*4 |
2507 |
|
|
17 |
39 |
30 |
R*4 |
2509 |
|
|
18 |
33 |
30 |
R*4 |
2511 |
|
|
19 |
D1F1 |
5 |
R*4 |
2513 |
|
|
20 |
3 |
20 |
R*4 |
2515 |
|
|
21 |
4 |
5 |
R*4 |
2517 |
|
|
22 |
12 |
5 |
R*4 |
2519 |
|
|
23 |
13 |
5 |
R*4 |
2521 |
|
|
24 |
17 |
5 |
R*4 |
2523 |
|
|
25 |
24 |
5 |
R*4 |
2525 |
|
|
26 |
28 |
5 |
R*4 |
2527 |
|
|
27 |
AL01 |
|
R*4 |
2529 |
|
|
28 |
AL02 |
|
R*4 |
2531 |
|
|
29 |
34 |
2 |
R*4 |
2533 |
|
|
30 |
5 |
2 |
R*4 |
2535 |
|
|
31 |
14 |
2 |
R*4 |
2537 |
|
|
32 |
18 |
2 |
R*4 |
2539 |
|
|
33 |
38 |
5 |
R*4 |
2541 |
|
|
34 |
35 |
5 |
R*4 |
2543 |
|
|
35 |
D1F2 |
5 |
R*4 |
2545 |
|
|
36 |
6 |
2 |
R*4 |
2547 |
|
|
37 |
7 |
2 |
R*4 |
2549 |
|
|
38 |
15 |
1 |
R*4 |
2551 |
|
|
39 |
19 |
2 |
R*4 |
2553 |
|
|
40 |
20 |
1 |
R*4 |
2555 |
|
|
41 |
25 |
2 |
R*4 |
2557 |
|
|
42 |
29 |
1 |
R*4 |
2559 |
|
|
43 |
36 |
2 |
R*4 |
2561 |
|
|
44 |
8 |
20 |
R*4 |
2563 |
|
|
45 |
9 |
2 |
R*4 |
2565 |
|
|
46 |
43 |
2 |
R*4 |
2567 |
|
|
47 |
21 |
1 |
R*4 |
2569 |
|
|
48 |
22 |
1 |
R*4 |
2571 |
|
|
49 |
26 |
1 |
R*4 |
2573 |
|
|
50 |
30 |
1 |
R*4 |
2575 |
|
|
51 |
AL42 |
|
R*4 |
2577 |
|
|
52 |
AR42 |
|
R*4 |
2579 |
|
|
53 |
EO42 |
|
R*4 |
2581 |
|
|
54 |
E142 |
|
R*4 |
2583 |
|
|
55 |
E242 |
|
R*4 |
2585 |
|
|
56 |
E342 |
|
R*4 |
2587 |
45 |
R1(75) |
57 |
E442 |
|
R*4 |
2589 |
|
|
58 |
E542 |
|
R*4 |
2591 |
|
|
59 |
EB1 |
30 |
R*4 |
2593 |
|
|
60 |
EB1 |
30 |
R*4 |
2595 |
|
|
61 |
EB2 |
30 |
R*4 |
2697 |
|
|
62 |
EB2 |
30 |
R*4 |
2699 |
|
|
63 |
EB3 |
30 |
R*4 |
2601 |
|
|
64 |
EB3 |
30 |
R*4 |
2603 |
|
|
65 |
EB4 |
30 |
R*4 |
2605 |
|
|
66 |
EB4 |
30 |
R*4 |
2607 |
|
|
67 |
EB5 |
10 |
R*4 |
2609 |
|
|
68 |
EB5 |
10 |
R*4 |
2611 |
|
|
69 |
EG06 |
60 |
R*4 |
2613 |
|
|
70 |
EG07 |
20 |
R*4 |
2615 |
|
|
71 |
EG08 |
20 |
R*4 |
2617 |
|
|
72 |
EG09 |
20 |
R*4 |
2619 |
|
|
73 |
44 |
20 |
R*4 |
2621 |
|
|
74 |
45 |
5 |
R*4 |
2623 |
|
|
75 |
37 |
1 |
R*4 |
2625 |
46 |
N60(60,4) |
Data Quality Words for R60(60,4) |
I*2 |
2627-2866 |
||
47 |
N30(30,16) |
Data Quality Words for R30(30,16) |
I*2 |
2867-3346 |
||
48 |
N20(20,16) |
Data Quality Words for R20(20,16) |
I*2 |
3347-3366 |
||
49 |
N5(5,31) |
Data Quality Words for R5(5,31) |
I*2 |
3667-3821 |
||
50 |
N2(2,12) |
Data Quality Words for R2(2,12) |
I*2 |
3822-3845 |
||
51 |
N1(75) |
Data Quality Words for R1(75) |
I*2 |
3846-3920 |
Record Structure for Far Encounter Mode
Header Block 38 I*2 words = 76 bytes | Data Block=1312 R*4 words + 1312 I*2 words=7872 bytes |
TOTAL = 7948 bytes |
Explanation of Data Quality Word Contents
Explanation of I*1 Representation
Explanation of I*2 Representation
R*4 Representation
Bit Definitions for LECP Status Word 1
Bit Definitions for LECP Status Word 2
Bit Definitions for LECP Status Word 3
Bit Definitions for LECP Status Word 4
Bit Definitions for LECP Status Word 5
Bit Definitions for LECP Status Word 6
Return to Voyager LECP Data Analysis Handbook Table of
Contents.
Return to Fundamental Technologies Home Page.
Last modified 8/2/05, Tizby Hunt-Ward
tizby@ftecs.com