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.


Downlink

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

Call

JQ1YCW

Status

ACTIVE

Orbital Parameter

NORAD                   27848
COSPAR designator       2003-031-J  
Inclination             98.709
RA of A. Node           278.562
Eccentricity            0.0009094
Argument of Perigee     350.475
Revs per day            14.21244834
Period                  1h 41m 19s (101.32 min)
Semi-major axis         7 199 km
Perigee x Apogee        815 x 828 km
BStar (drag term)       0.000179190 1/ER
Mean anomaly            163.004


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