CubeSat OSCAR CO-57 (XI-IV)

Vorbereitung des CubeSat

Am 30. Juni 2003, 1415 UTC startete eine zweistufige Rockot-Rakete vom Plesetsk-Raumfahrtzentrum mit neun Satelliten. Neben einem russischen, einem tschechischen und einem kanadischen MicroSat, waren 6 weitere Satelliten einer neuen und preiswerten Bauart, sogenannte CubeSat's an Bord. Die "Würfel-Satelliten" haben eine Kantenlänge von 10 cm und werden als NanoSat's klassifiziert. Alle CubeSat's tragen auch eine Amateurfunk-Nutzlast (Bake).

Der Name von ISSL's CubeSat ist "XI" ([ sai ] X-Faktor, Forscher). Abgeleitet von seiner quadratischen Form (XI bedeudet Domino auf japanisch) stellt er den nachforschenden Geist in Richtung zur Neuerkenntnis und zur Technologie dar.


Orbital Parameter

Name  CUBESAT XI-IV
NORAD # 27848
COSPAR Bezeichnung  2003-031-J  
Inklination (Grad)  98.719
RAAN  197.951
Excentrizität 0.0009756
ARGP  340.615
Umläufe pro Tag 14.20194952
Periode 1h 41m 23s (101.38 Min)
Semi-major axis 7203 km
Perigäum x Apogäum  818 x 832 km
Bstar (drag Faktor) 0.000060584 1/ER
Mean Anomaly  19.463

Downlink

437,490 MHz FM FSK AX.25, 1k2, 800mW
436,8475 MHz CW 50wpm, 100mW

Call

JQ1YCW

Status

aktiv

Telemetrie

Status Information
Address bytes format conversion explanation 
0  6 AST   'XIC01F'(Header) 
6  6 AHX y = x Time[sec] 
12 1 AST   'V' 
13 2 AHX y = x / 255 * 4.77 Battery Voltage[V] 
15 2 AHX y = x / 255 * 4.77 Solar Cell Voltage[V] 
17 1 AST   'I' 
18 2 AHX y = x / 255 * 4.77 * 100 Charge Battery Current[mA] 
20 2 AHX y = x * 3.92 Communication System Consumption Current[mA] 
22 1 AST   'S' 
23 2 AHX (*1) Solar[0] 
25 2 AHX (*1) Solar[1] 
27 2 AHX (*1) Solar[2] 
29 2 AHX (*1) Solar[3] 
31 2 AHX (*1) Solar[4] 
33 2 AHX (*1) Solar[5] 
35 1 AST   'T' 
36 2 AHX y = ( x + 298.43 ) / 149.66 * 105.25 - 287.12 +X Panel Temperature[degrees centigrade] 
38 2 AHX y = ( x + 298.36 ) / 149.82 * 105.82 - 287.89 -X Panel Temperature 
40 2 AHX y = ( x + 296.79 ) / 149.13 * 104.96 - 287.44 +Y Panel Temperature 
42 2 AHX y = ( x + 297.80 ) / 149.51 * 106.16 - 288.55 -Y Panel Temperature 
44 2 AHX y = ( x + 298.51 ) / 149.75 * 104.55 - 285.08 +Z Panel Temperature 
46 2 AHX y = ( x + 297.81 ) / 149.55 * 106.57 - 289.76 -Z Panel Temperature 
48 2 AHX y = ( x + 297.06 ) / 149.31 * 105.86 - 287.71 Transmitter Temperature 
50 2 AHX y = ( x + 299.60 ) / 150.17 * 106.91 - 290.31 Battery Temperature 
52 1 AST   ' '(Space) 
53 2 BIT (*2) Status 1 
55 2 BIT (*2) Status 2 
57 2 BIT (*2) Status 3 
                                      AST: ASCII STRING  AHX: ASCII HEXADECIMAL  BIT: BIT STRING 
Solar Cell Current[mA] s[i] = solarI[i] / 255 * 4.77 * 10 (i=0-5)
+X Panel 10.49881 * s[0]
-Y Panel 8.251522329 * s[1] - 0.482939447 * s[2] - 0.024941879 * s[3] - 0.636795098 * s[4]
+Y Panel -0.482939447 * s[1] + 6.672955921 * s[2] - 0.017974511 * s[3] - 1.050451843 * s[4]
-Y Panel -0.024941879 * s[1] - 0.017974511 * s[2] + 9.840646080 * s[3] - 0.023700861 * s[4]
+Z Panel -0.636795098 * s[1] - 1.050451843 * s[2] - 0.023700861 * s[3] + 8.464182598 * s[4]
-Z Panel 7.515946019 * s[5]
Status
------
bit7(upper bits) -> bit0(Lower bits)
 
Status1 0:      Telemetry ROM Mode (0:detail 1:rough)   
1-7:            Camera ROM Overwrite Flag (0:permit 1:prohibit) Prohibit Overwriting after takeing a image 
Status2 0-4:    Uplink Counter   
5-7:            Camera Counter   
Status3 0-2:    Communication System SEL(Single Event Latch Up) Reset Counter   
3:              Antenna Deploy (0:Before Deploy 1:After Deploy)   
4-5:            CW Duty Ratio (0:0 1:Under 0.3 2:0.3 3:Over 0.3) Default is 0.3 
6:              Cause of Reset (0:Normal 1:WDT(Watch Dog Timer) Reset)   
7:              State of Charge (0:Rapid Charging 1:trickle charging)   

CW Beacon Format
[UT1 WWW.SPACE.T.U-TOKYO.AC.JP  URL of ISSL.
[UT2 AA BB CC]                  Time information.
[UT3 DD EE FF GG]
     DD, EE:Status information.
           FF[0]: OBC's state.(0:alive,1:dead)
           FF[1]: Tx-TNC's state.(0:waiting, 1:sending)
           FF[2]~[7]: (undefined)
              GG: Max. of RSSI.
[UT4 HH II JJ]
     HH: BATT V.
        II: Solar REF.
            JJ: Tmp BATT.
[UT5 KL MN OP]
Upper bits of Solar I - each data(4bit)*6=3byte.
[UT6 QR ST UV WX GG]
     Q~X is Upper bits(4big) of each data.
     Q~V: Temperature of each panel.
              W : Temperature of battery.
               X : Temperature of FM tramsmitter.
                 GG : Max. of RSSI.


imgUT1 05.07.2003, 0600 UTC 436,8475 MHz: www.space.t.u-tokyo.ac.jp
imgUT2 05.07.2003, 0600 UTC 436,8475 MHz: 06 3A 2A
imgUT3 05.07.2003, 0600 UTC 436,8475 MHz: E3 B8 00 3B
imgUT4 05.07.2003, 0600 UTC 436,8475 MHz: 2F 43 57
imgUT5 05.07.2003, 0600 UTC 436,8475 MHz: 10 20 04
imgUT6 05.07.2003, 0600 UTC 436,8475 MHz: 64 55 55 54 3E


erste empfangene Telemetrie
ut3 1. .. 00 46
ut4 2e 43 49
ut5 00 00 00
01.07.2003, 1707 UTC, 436,856 MHz

imgerste empfangene CW-Telemetrie am 01.07.2003, 1707 UTC
ut3 19b80046
ut4 2f4256
ut5 041370
ut6 6666656644

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d0895
ut3 19b80048
ut4 30435e
ut5 00a011
ut6 776676775e

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d0903
ut3 19b80045
ut4 2f4257
ut5 100370
ut6 666776663b

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d0971
ut3 19b.0038
ut4 324259
ut5 0a7130
ut6 677775663a

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d09df
ut3 19380035
ut4 33357f
ut5 401000
ut6 9998989838

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d0a52
ut3 19b80023
ut4 2f425b
ut5 083340
ut6 7677756622

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d0ac0
ut3 19b80027
ut4 2f4258
ut5 202006
ut6 6776656622

ut1 www.space.t.u-tokyo.ac.jp
ut2 1d0b2e
11.10.2006, 1738-1751UTC, 436.856 MHz


ut2 23070d
ut3 24b80022
ut4 314254
ut5 045013
ut6 666676672c
ut1 www.space.t.u-tokyo.ac.jp
ut2 23077b
ut3 24b8002c
ut4 33425b
ut5 300510
ut6 77788787..
16.10.2007, 1533UTC, 436.856 MHz

11.04.2008 1153 XIIV
----------------------------

ut3 afb80061
ut4 334265
ut5 402004
ut6 7777777748
ut1 www.space.t.u-tokyo.ac.jp
ut2 aa81c0
ut3 afb80051
ut4 2f4352
ut5 0a4070
ut6 6676656642
ut1 www.space.t.u-tokyo.ac.jp
ut2 aa8229
ut3 afb8004b
ut4 304253
ut5 205004
ut6 6766666645
ut1 www.space.t.u-tokyo.ac.jp
ut2 aa8297
ut3 afb80037
ut4 304252
ut5 041540
ut6 6666666637
ut1 www.space.t.u-tokyo.ac.jp
ut2 aa8300
ut3 afb80036
ut4 2f4252
ut5 007007
ut6 776766662a
ut1 www.space.t.u-tokyo.ac.jp
ut2 aa836e
ut3 afb8002c
ut4 314252
ut5 112720
ut6 7676677726
ut1 www.space.t.u-tokyo.ac.jp
ut2 aa83dc
ut3 afb80027
ut4 314252
ut5 00000a
ut6 666666662a
11.04.2008, 1553UTC, 436.856 MHz



Homepage und weitere Info's

http://www.space.t.u-tokyo.ac.jp/gs/en/index.html

QSL Info

QSL Karte JQ1YCW QSL Karte JQ1YCW
Anschrift für SASE
113-8656
Nakasuka Lab, Dep. of Aeronautics and Astronautics, 
School of Engineering, Univ. of Tokyo,
7-3-1 Hongo Bunkyo-ku 
Tokyo
JAPAN

Weitere Infos findet man unter http://www.space.t.u-tokyo.ac.jp/cubesat/swl/index-e.html