[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

PCsat telemetry calculation



The following data were the consecutive telemetry blocks from PCsat
that I received yesterday, Oct 24, [1200bps 144.390MHz(B-side) AFSK].
And I calculated these telemetry in order of the cycle count.

 [03:11:17 UTC]  T#997,060,034,048,089,212,00111111,0000,1
 [03:12:07 UTC]  T#998,066,064,059,061,212,00111111,0001,1
 [03:12:57 UTC]  T#999,062,057,071,089,212,00111111,0010,1
 [03:13:47 UTC]  T#000,164,169,086,215,212,00111111,0011,1


Current -X     : 0*60^3+0.0034*60^2+0.2284*60-26.6=     -0.656 [A]
Current -Z     : 0*34^3+0.0096*34^2+0.864*34-53.8=     -13.326 [A]
Current -Y     : 0*48^3+0.0023*48^2+0.473*48-23.2=       4.803 [A]
Current +X     : 0*89^3+0.003*89^2+0.4*89-26.6=         32.763 [A]
Temp -Y        : 0*66^3+0*66^2+0.3414*66-19.71=          2.822 [C]
Temp Batt B    : 0*64^3+0*64^2+0.3414*64-19.71=          2.139 [C]
Temp XMIT B    : 0*59^3+0*59^2+0.3414*59-19.71=          0.432 [C]
Temp -Z        : 0*61^3+0*61^2+0.3414*61-19.71=          1.115 [C]
Temp -X        : 0*62^3+0*62^2+0.3414*62-19.71=          1.456 [C]
Temp Stack B   : 0*57^3+0*57^2+0.3414*57-19.71=         -0.250 [C]
Current +Y     : 0*71^3+0.0038*71^2+0.0084*71-19.8=     -0.047 [A]
Current Batt B : -0.00004*89^3+0.0158*89^2-3.32*89+259= 60.473 [A]
B-Batt A Volt  : 0*164^3+0*164^2+0.09774*164+0=         16.029 [V]
B-Batt B Volt  : 0*169^3+0*169^2+0.09457*169+0=         15.982 [V]
Power out B    : 0*86^3+0*86^2+0.0223*86+0=              1.917 [V]
8V Reg B       : 0*215^3+0*215^2+0.0351*215+0=           7.546 [V]


 Refer to the URL below for the more information.

 http://www.ew.usna.edu/~bruninga/pcsat.html
 http://www.ne.jp/asahi/hamradio/je9pel/pcs-calc.htm

----------------------------------------------
Name : JE9PEL/Mineo Wakita, JAMSAT member
Mail : ei7m-wkt@asahi-net.or.jp
URL  : http://www.ne.jp/asahi/hamradio/je9pel/
QTH  : Yokohama Japan, GL:PM95TJ
Date : Oct 25, 2001
----------------------------------------------
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org


AMSAT Top AMSAT Home