CubeSat OSCAR CO-57 (XI-IV)
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.
UT1 05.07.2003, 0600 UTC 436,8475 MHz:
www.space.t.u-tokyo.ac.jp
UT2 05.07.2003, 0600 UTC 436,8475 MHz: 06 3A
2A
UT3 05.07.2003, 0600 UTC 436,8475 MHz: E3 B8
00 3B
UT4 05.07.2003, 0600 UTC 436,8475 MHz: 2F 43
57
UT5 05.07.2003, 0600 UTC 436,8475 MHz: 10 20
04
UT6 05.07.2003, 0600 UTC 436,8475 MHz: 64 55
55 54 3Eerste empfangene Telemetrie
ut3 1. .. 00 46 ut4 2e 43 49 ut5 00 00 00
erste 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
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..
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
Homepage und weitere Info's
http://www.space.t.u-tokyo.ac.jp/gs/en/index.htmlQSL Info
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
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