|
|
 |
|
|
|
register |
bbs |
search |
rss |
faq |
about
|
|
|
meet up |
add to del.icio.us |
digg it
|
|
|
|
AMSAT Oscar-13 Telemetry Block Format
by DB2OS
Compiled by DB2OS for AMSAT-DL 1st September 1988
AMSAT OSCAR-13 (like all P3-Satellites) transmits 512 bytes per block,
treated as 8 lines of 64 bytes each. Blocks are identified according to
the first byte of the block (followed by space, coded as #20).
K, L, M, N blocks are message blocks (flying mailbox) from one command
station to another, but also used for broadcast. All characters use
ASCII representation. Bit 7 set to 1 may be used to indicate highlighted
character display. No CR/LF will be transmitted, they should be inserted
at the ground after 64 received characters!
Q blocks carry 128 logical telemetry channels in compressed data format.
Y blocks carry 64 plain text analog telemetry channels and will be sent
infrequently (less than Q-blocks). It is proposed to use the Q-blocks
for decoding, since Y-Blocks may be withdrawn in the feature.
Q-Block format:
---------------
Q HI, THIS IS AMSAT OSCAR 13 hh:mm:ss dddd
#hhhh #hhhh #hhhh
ddd ddd ddd ddd ddd ddd ddd
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
Line specification:
-------------------
Line 0:
Byte pos.= 0 2 48 58
<Q|Y> <text,name> hh:mm:ss dddd
U T C AMSAT day number
1 January 1978 = 0
Line 1:
Byte pos.= 0 8 16
#hhhh #hhhh #hhhh
safety transponder command
information status number
word (Syspage
(see below) byte #5E)
Safety Information Word (Emergency Flags):
bit significance
0..7 as Syspage byte #56
8 Low Power, QRP mode
9 Extremly low power, QRPP mode
10 Command loss (Watchdog)
11 High temperature (battery or transponder)
12 Sunangle exceeds limit (~50 degrees)
13..15 not used
Line 2:
Byte pos.= 0 4 8 12 16 20 24
ddd ddd ddd ddd ddd ddd ddd
2MUX0 2MUX1 2MUX2 2MUX3 2MUX4 2MUX5 2MUX6
(Syspage #40 #41 #42 #43 #44 #45 #46)
Line 3: empty, blank line.
Line 4:
Byte = 0 10 20 30
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
Line 5:
Byte = 40 50 60 70
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
Line 4 and 5 are the telemetry channels #00 to #7F of the INTERMEDIATE
EVENT SYSPAGE buffer. Up to 6 events stored, 128 bytes per event. The
buffers are read out cyclically, one event at a time. The time recorded
and the event counter identify the particular event.
Line 6:
Byte = 0 10 20 30
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
Line 7:
Byte = 40 50 60 70
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
Line 6 and 7 are the SYSPAGE logical telemetry channels #00 to #7F,
normally used to display realtime telemetry. Decode according to the
OSCAR-13 telemetry decoding document. Bytes are expressed directly, not
as character values.
In Y-Blocks only SYSPAGE channels #00 to #3F (analog channels) are
transmitted in ASCII (16 channels per line, 4 bytes per channel)!!
Example for Y-Blocks:
---------------------
Y HI, THIS IS AMSAT OSCAR 13 19:22:41 3894
#00A6 #0020 #0193
64 1 255 166 19 230 0
193 7 147 7 193 7 164 117 200 7 130 25 118 7 149 32
7 7 133 7 13 7 131 112 14 7 131 7 112 7 131 7
155 129 134 148 191 145 132 142 75 145 132 7 228 129 127 7
179 129 126 128 62 141 132 7 13 127 124 7 208 133 125 7
Example for decoded Q-Blocks: (as displayed on the ATARI 800XL IPS
----------------------------- groundsoftware package of AMSAT-DL)
Q HI, THIS IS AMSAT OSCAR 13 19:25:57 3894
#00A6 #0020 #0193 64 1 255 166 19 230 0
SA 1.2
COM-U RUDAK-ON
CMD-F -140 U9-V 9.1 2-ANT HI T-TX 25.7
F-BIT 405.5 U14V-ST 14.6 70-ANT HI T-RX 15.7
AGC DB -6 I14V-ST 2402 T-S 4.0
MEM 5 CW-S 55 P-OUT 11.2
Q HI, THIS IS AMSAT OSCAR 13 19:25:57 3894
#00A6 #0020 #0193 64 1 255 166 19 230 0
SA 1.2
STROEME: SPANNUNGEN: LEISTUNGEN: PANEL-I UND T:
BCR-SIN 31.0 P1 422
BCR-IN 0 BCR-IN 37.2 PANELS 0.0 P2 160
BAT-NET 74 P-BAT 1.0 P3 0
BAT-CH 0 BCR-SO 14.5 P4 611
BCR-OUT 2596 BCR-OUT 14.6 BCR-OUT 37.9 P5 694
14V-ST 2402 14V-ST 14.6 P-TRANS 35.0 P6 0
14V-S 43 A-BAT 0.2 P-HF 11.2 SC-ROH #00F1
10V-C 77 10V-C 10.0 T-P1 8.1
BCR-O1 10.0 T-ABAT1 6.4
BCR-O2 0.7 T-MBAT 6.4
Q HI, THIS IS AMSAT OSCAR 13 19:25:57 3894
#00A6 #0020 #0193 64 1 255 166 19 230 0
SA 1.2
T'S ARM 1: T'S ARM 2: T'S ARM 3: T'S ZENTRUM:
P1 8.1 P3 6.9 P5 6.9 N2O4 6.9
RX-U 15.7 SEU 7.5 HELIUM 5.2 AZ50 7.5
RX-L 14.5 T-TO-S 1.7 IHU 5.8
WALL 12.2 WALL 5.2 RUDAK 5.2
TOP 4.0 BCR 16.9 M-BAT 6.4
BOTTOM 3.4 ABAT-1 6.4 NUT-D 2.8
TX-U 25.7 ABAT-2 6.4
TX-L 14.5
TX-S 4.0
Q HI, THIS IS AMSAT OSCAR 13 19:25:57 3894
#00A6 #0020 #0193 64 1 255 166 19 230 0
SA 1.2
NAV, POS: 162-165
SPINRATE 36.1 SS-1 0* S-SENS 5
T-HE 5.2 SS-2 1* ES-SENS 64
T-N2O4 6.9 LS-A(MV) 0 LS-R'S 7.5
T-AZ50 7.5 LS-M(MV) 8 L-O#,Z #A26F
ES-M 241 U-O#,Z #A26F
ES-A 241
SPERR-# 15
M-STATUS 0
M-SOLL 246
END
|
|
|
To the best of our knowledge, the text on this page may be freely reproduced and distributed.
If you have any questions about this, please check out our Copyright Policy.
totse.com certificate signatures
|
|
|
About | Advertise | Bad Ideas | Community | Contact Us | Copyright Policy | Drugs | Ego | Erotica
FAQ | Fringe | Link to totse.com | Search | Society | Submissions | Technology
|
|
|
|
|
|
